US5384665A — Data dividing apparatus

Claim 1

Independent Claim 122 words

An encoder, comprising: converting means for dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 X n-1 (where n is an integer not less than 2) so that D=K 0 X 0 +K 1 X 1 + . . . +K n-1 (where K 0 , K 1 , . . . K n-1 are real numbers) and said input digital data D being determined uniquely from said output codes X 0 , X 1 , . . . , X n-1 ; and data generating means for synthesizing said output codes X 0 , X 1 , . . . , X n-1 into at least two data channels.

Claim 2

Dependent Claim 122 words

An encoder, comprising: converting means for dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 X n-1 (where n is an integer not less than 2) so that D=K 0 X 0 +K 1 X 1 + . . . +K n-1 (where K 0 , K 1 , . . . K n-1 are real numbers) and said input digital data D being determined uniquely from said output codes X 0 , X 1 , . . . , X n-1 ; and data generating means for synthesizing said output codes X 0 , X 1 , . . . , X n-1 into at least two data channels.

Claim 3

Dependent Claim 22 words

The encoder of claim 1, wherein said converting means divides said input digital data D into two output codes X and Y.

Claim 4

Dependent Claim 28 words

The encoder of claim 2, wherein said converting means divides said input digital data D into said two output codes X and Y so that D=2X+Y or D=3X+Y.

Claim 5

Dependent Claim 61 words

The encoder of claim 1, wherein said converting means includes a memory corresponding to each of said output codes X 0 , . . . , X n-1 , each memory storing a look-up table for reading and outputting said corresponding one of said output codes X 0 , . . . , X n-1 based on said digital data D.

Claim 6

Dependent Claim 82 words

The encoder of claim 1 further comprising: combining means for receiving digitized video signals and for generating a combination signal by combining said digitized video signals; transforming means for transforming said combination signal to produce said input digital data D; and wherein said data generating means includes channel synthesizing means for synthesizing said output codes X 0 , . . . , X n-1 into said two data channels and variable length encoding means for variable length encoding said two data channels.

Claim 7

Dependent Claim 111 words

The encoder of claim 1, wherein said converting means divides said input digital data D which includes basic picture quality information and fine picture quality information; and further comprising, a discriminator determining whether said input digital data D includes basic picture quality information or fine picture quality information, and for causing said data generating means to generate said two data channels based on said output codes X 0 , . . . , X n-1 when said input digital data D includes said basic picture quality information and to generate said two data channels based on said input digital data D when said input digital data represent fine picture quality information.

Claim 8

Dependent Claim 214 words

An encoder, comprising: converting means for dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 (where n is an integer not less than 2) so that said input digital data D is divided into a plurality of groups, each group containing not more than t pieces of different input digital data (where t is an integer) so that each piece of digital data in said plurality of groups is uniquely represented by a combination of output codes X 0 having m 0 different values, output codes X 1 having m 1 different values, . . . , and output codes X n-1 having m n-1 different values (where m 0 , m 1 , . . . , m n-1 are integers and m 0 ×m 1 × . . . ×m n-1 ≧n), and a combination of said output codes X 0 , X 1 , . . . , X n-1 represents digital data in one of said plurality of groups does not represent digital data in another of said plurality of groups; and data generating means for synthesizing said output codes X 0 , X 1 , . . . , X n-1 into at least two data channels.

Claim 9

Dependent Claim 214 words

An encoder, comprising: converting means for dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 (where n is an integer not less than 2) so that said input digital data D is divided into a plurality of groups, each group containing not more than t pieces of different input digital data (where t is an integer) so that each piece of digital data in said plurality of groups is uniquely represented by a combination of output codes X 0 having m 0 different values, output codes X 1 having m 1 different values, . . . , and output codes X n-1 having m n-1 different values (where m 0 , m 1 , . . . , m n-1 are integers and m 0 ×m 1 × . . . ×m n-1 ≧n), and a combination of said output codes X 0 , X 1 , . . . , X n-1 represents digital data in one of said plurality of groups does not represent digital data in another of said plurality of groups; and data generating means for synthesizing said output codes X 0 , X 1 , . . . , X n-1 into at least two data channels.

Claim 10

Dependent Claim 109 words

The encoder of claim 7, wherein said converting means divides said input digital data D into said plurality of groups, each including not greater than four different input digital data, so that an output code X having two different values and an output code Y having two different values exist, wherein each digital data in each of said plurality of groups is expressed uniquely by a combination of the output codes X and Y, and a combination of said output codes X and Y which represents digital data in said one of said plurality of groups does not represent digital data in said another of said plurality of groups.

Claim 11

Dependent Claim 61 words

The encoder of claim 7, wherein said converting means includes a memory corresponding to each of said output codes X 0 , . . . , X n-1 , each memory storing a look-up table for reading and outputting said corresponding one of said output codes X 0 , . . . , X n-1 based on said digital data D.

Claim 12

Dependent Claim 82 words

The encoder of claim 7 further comprising: combining means for receiving digitized video signals and for generating a combination signal by combining said digitized video signals; transforming means for transforming said combination signal to produce said input digital data D; and wherein said data generating means includes channel synthesizing means for synthesizing said output codes X 0 , . . . , X n-1 into said two data channels and variable length encoding means for variable length encoding said two data channels.

Claim 13

Dependent Claim 111 words

The encoder of claim 7, wherein said converting means divides said input digital data D which includes basic picture quality information and fine picture quality information; and further comprising, a discriminator determining whether said input digital data D includes basic picture quality information or fine picture quality information, and for causing said data generating means to generate said two data channels based on said output codes X 0 , . . . , X n-1 when said input digital data D includes said basic picture quality information and to generate said two data channels based on said input digital data D when said input digital data represent fine picture quality information.

Claim 14

Dependent Claim 60 words

A data-division encoding circuit, comprising: encoding means for performing a specified modular arithmetic on input digital data X to divide said input digital data X into two main codes Y1 and Y2 and a subcode Z; and division means for dividing each of said main codes Y1 and Y2 and said subcode Z into at least first and second parts.

Claim 15

Dependent Claim 60 words

A data-division encoding circuit, comprising: encoding means for performing a specified modular arithmetic on input digital data X to divide said input digital data X into two main codes Y1 and Y2 and a subcode Z; and division means for dividing each of said main codes Y1 and Y2 and said subcode Z into at least first and second parts.

Claim 16

Dependent Claim 48 words

The circuit of claim 12, wherein said encoding means generates said two main codes Y1 and Y2 and a subcode Z from said input digital signal X, where Y1=INT(X/2.sup.n) Y2=INT(X/2.sup.n-1)-INT(X/2.sup.n) Z=X mod 2.sup.n-1 and where INT generates a quotient, mod generates a remainder, and n is a integer.

Claim 17

Dependent Claim 47 words

The circuit of claim 12, wherein said encoding means generates said two main codes Y1 and Y2 and a subcode Z from said input digital signal X, where Y1=Y2=INT(X/2.sup.n) Z=X mod 2.sup.n and where INT generates a quotient, mod generates a remainder, and n is a integer.

Claim 18

Dependent Claim 17 words

The circuit of claim 12, wherein said encoding means includes at least one latch and an adder.

Claim 19

Dependent Claim 137 words

An encoder, comprising: combining means for receiving digitized video signals and for generating a combination signal by combining said digitized video signals; transforming means for transforming said combination signal to produce input digital data X; data-division means for performing a specified modular arithmetic on input digital data X to divide said input digital data X into two main codes Y1 and Y2 and a subcode Z, and for dividing each of said main codes Y1 and Y2 and said subcode Z into at least first and second parts; and data generating means for generating a first data channel by mixing said first parts of said main codes Y1 and Y2 and said subcode Z, and for generating a second data channel by mixing said second parts of said main codes Y1 and Y2 and said subcode Z.

Claim 20

Dependent Claim 137 words

An encoder, comprising: combining means for receiving digitized video signals and for generating a combination signal by combining said digitized video signals; transforming means for transforming said combination signal to produce input digital data X; data-division means for performing a specified modular arithmetic on input digital data X to divide said input digital data X into two main codes Y1 and Y2 and a subcode Z, and for dividing each of said main codes Y1 and Y2 and said subcode Z into at least first and second parts; and data generating means for generating a first data channel by mixing said first parts of said main codes Y1 and Y2 and said subcode Z, and for generating a second data channel by mixing said second parts of said main codes Y1 and Y2 and said subcode Z.

Claim 21

Dependent Claim 43 words

The apparatus of claim 16, wherein said data generating means comprises: variable length encoding means for variable length encoding said two main codes Y1 and Y2; and mixing means for mixing said subcode Z with said output of said variable length encoding means.

Claim 22

Dependent Claim 23 words

The encoder of claim 17, wherein said combining means receives a luminance signal and at least two chrominance signals as said video signals.

Claim 23

Dependent Claim 48 words

The circuit of claim 16, wherein said encoding means generates said two main codes Y1 and Y2 and said subcode Z from said input digital signal X, where Y1=INT(X/2.sup.n) Y2=INT(X/2.sup.n-1)-INT(X/2.sup.n) Z=X mod 2.sup.n-1 and where INT generates a quotient, mod generates a remainder, and n is a integer.

Claim 24

Dependent Claim 47 words

The circuit of claim 16, wherein said encoding means generates said two main codes Y1 and Y2 and said subcode Z from said input digital signal X, where Y1=Y2=INT(X/2.sup.n) Z=X mod 2.sup.n and where INT generates a quotient, mod generates a remainder, and n is a integer.

Claim 25

Dependent Claim 17 words

The apparatus of claim 16, wherein said encoding means includes at least one latch and an adder.

Claim 26

Dependent Claim 54 words

An encoder, comprising: data-division encoding circuit performing a specified modular arithmetic on an input digital data X to generate two main codes Y1 and Y2 and a subcode Z; and a data generating circuit for generating first and second channel data based on said two main codes Y1 and Y2 and said subcode Z.

Claim 27

Dependent Claim 54 words

An encoder, comprising: data-division encoding circuit performing a specified modular arithmetic on an input digital data X to generate two main codes Y1 and Y2 and a subcode Z; and a data generating circuit for generating first and second channel data based on said two main codes Y1 and Y2 and said subcode Z.

Claim 28

Dependent Claim 87 words

A recording system, comprising: analog-to-digital converters converting video signals to produce digitized video signals; an encoder processing said digitized video signals to produce an input digital signal X, performing a specified modular arithmetic on said input digital data X to generate two main codes Y1 and Y2 and a subcode Z, and dividing said two main codes Y1 and Y2 and subcode Z into first and second data channels; and output processing means for processing and recording said first and second data channels on a recording medium.

Claim 29

Dependent Claim 87 words

A recording system, comprising: analog-to-digital converters converting video signals to produce digitized video signals; an encoder processing said digitized video signals to produce an input digital signal X, performing a specified modular arithmetic on said input digital data X to generate two main codes Y1 and Y2 and a subcode Z, and dividing said two main codes Y1 and Y2 and subcode Z into first and second data channels; and output processing means for processing and recording said first and second data channels on a recording medium.

Claim 30

Dependent Claim 47 words

The system of claim 23, wherein said encoder generates said two main codes Y1 and Y2 and said subcode Z from said input digital signal X, where Y1=INT(X/2.sup.n) Y2=INT(X/2.sup.n-1)-INT(X/2.sup.n) Z=X mod 2.sup.n-1 and where INT generates a quotient, mod generates a remainder, and n is a integer.

Claim 31

Dependent Claim 46 words

The circuit of claim 23, wherein said encoder generates said two main codes Y1 and Y2 and said subcode Z from said input digital signal X, where Y1=Y2=INT(X/2.sup.n) Z=X mod 2.sup.n and where INT generates a quotient, mod generates a remainder, and n is a integer.

Claim 32

Dependent Claim 75 words

A reproducing system, comprising: input processing means for inputting and processing at least two main codes Y1 and Y2 and a subcode Z; decoding means for decoding the at least two main codes Y1 and Y2 and the subcode Z into digital data X according to one of the following expressions based on a control signal, X=2n-1*(Y1=Y2)+Z, X=2n*Y1, and X=2n*Y2 where n is an integer; and output processing means for processing said digital data X.

Claim 33

Dependent Claim 75 words

A reproducing system, comprising: input processing means for inputting and processing at least two main codes Y1 and Y2 and a subcode Z; decoding means for decoding the at least two main codes Y1 and Y2 and the subcode Z into digital data X according to one of the following expressions based on a control signal, X=2n-1*(Y1=Y2)+Z, X=2n*Y1, and X=2n*Y2 where n is an integer; and output processing means for processing said digital data X.

Claim 34

Dependent Claim 78 words

The system of claim 26, wherein said input processing means detects errors in said two main codes and produces a control signal based on a result of said detection; and said decoding means restores said digital data X according to X=2n*Y2 if an error is detected in main code Y1, according to X=2n*Y1 if error is detected in main code Y2, and according to X=2n-1*(Y1+Y2)+Z if no error is detected in said two main codes Y1 and Y2.

Claim 35

Dependent Claim 48 words

The reproducing system of claim 26, wherein said output processing means produces a luminance signal and at least two chrominance signals from said digital data X, and said input processing means retrieves, amplifies, modulates and error corrects said two main codes Y1 and Y2 and said subcode Z.

Claim 36

Dependent Claim 109 words

A dividing circuit, comprising: n memories, each memory corresponding to one of a plurality of output codes X 0 , . . . , X n-1 , each memory storing a look-up table for addressing said corresponding one of said output codes X 0 , . . . , X n-1 based on received input digital data D, where D=K 0 X 0+K 1X 1 + . . . +K n-1 X n-1 (where K 0 , . . . , K n-1 are real numbers), and said input digital data D being determined uniquely from said output codes X 0 , . . . , X n-1 .

Claim 37

Dependent Claim 109 words

A dividing circuit, comprising: n memories, each memory corresponding to one of a plurality of output codes X 0 , . . . , X n-1 , each memory storing a look-up table for addressing said corresponding one of said output codes X 0 , . . . , X n-1 based on received input digital data D, where D=K 0 X 0+K 1X 1 + . . . +K n-1 X n-1 (where K 0 , . . . , K n-1 are real numbers), and said input digital data D being determined uniquely from said output codes X 0 , . . . , X n-1 .

Claim 38

Dependent Claim 155 words

A recording system, comprising: analog-to-digital converters converting video signals to produce digitized video signals; an encoder processing said digitized video signals to produce an input digital signal D, dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 (where n is an integer not less than 2) so that D=K 0 X 0 +K 1 X 1 + . . . +K n` X n` (where K 0 , K 1 , . . . K n-1 are real numbers), said input digital data D being determined uniquely from said output codes X 0 , X 1 , . . . , X n-1 , and synthesizing said output codes X 0 , X 1 , . . . , X n-1 into at least two data channels; and output processing means for processing and recording said two data channels on a recording medium.

Claim 39

Dependent Claim 155 words

A recording system, comprising: analog-to-digital converters converting video signals to produce digitized video signals; an encoder processing said digitized video signals to produce an input digital signal D, dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 (where n is an integer not less than 2) so that D=K 0 X 0 +K 1 X 1 + . . . +K n` X n` (where K 0 , K 1 , . . . K n-1 are real numbers), said input digital data D being determined uniquely from said output codes X 0 , X 1 , . . . , X n-1 , and synthesizing said output codes X 0 , X 1 , . . . , X n-1 into at least two data channels; and output processing means for processing and recording said two data channels on a recording medium.

Claim 40

Dependent Claim 83 words

A reproducing system, comprising: input processing means for inputting and processing at least two data channels; channel dividing means for dividing said two data channels into n output codes X 0 , . . . , X n-1 ; decoding means restoring digital data D where D=K 0 X 0+K 1X 1 + . . . +K n-1 X n-1 (where K 0 , . . . , K n-1 are real numbers); and output processing means for processing said digital data X.

Claim 41

Dependent Claim 83 words

A reproducing system, comprising: input processing means for inputting and processing at least two data channels; channel dividing means for dividing said two data channels into n output codes X 0 , . . . , X n-1 ; decoding means restoring digital data D where D=K 0 X 0+K 1X 1 + . . . +K n-1 X n-1 (where K 0 , . . . , K n-1 are real numbers); and output processing means for processing said digital data X.

Claim 42

Dependent Claim 123 words

The system of claim 31, wherein said channel dividing means detects errors in said output codes X 0 , . . . , X n-1 ; and said decoding means includes a memory, said memory includes a look-up table containing values of said digital data D corresponding to individual values of said output codes X 0 , . . . , X n-1 , and said decoding means restores said digital data D by reading said digital data D from said memory based on one of said output codes X 0 , . . . , X n-1 when said channel dividing means detects an error in another one of said output codes X 0 , . . . , X n-1 .

Claim 43

Dependent Claim 41 words

The reproducing system of claim 31, wherein said output processing means produces a luminance signal and at least two chrominance signals from said digital data D, and said input processing means retrieves, amplifies, modulates and error corrects said two data channels.

Claim 44

Dependent Claim 247 words

A recording system, comprising: analog-to-digital converters converting video signals to produce digitized video signals; an encoder processing said digitized video signals to produce an input digital signal D, dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 (where n is an integer not less than 2) so that said input digital data D is divided into a plurality of groups, each group containing not more than t pieces of different input digital data (where t is an integer) so that each piece of digital data in said plurality of groups is uniquely represented by a combination of output codes X 0 having m 0 different values, output codes X 1 having m 1 different values, . . . , and output codes X n-1 having m n-1 different values (where m 0 , m 1 , . . . , m n- are integers and m 0 ×m 1 × . . . ×m n-1 ≧n), a combination of said output codes X 0 , X 1 , . . . , X n-1 represents digital data in one of said plurality of groups does not represent digital data in another of said plurality of groups, and synthesizing said output codes X 0 , X 1 , . . . , X n-1 into at least two data channels; and output processing means for processing and recording said two data channels on a recording medium.

Claim 45

Dependent Claim 247 words

A recording system, comprising: analog-to-digital converters converting video signals to produce digitized video signals; an encoder processing said digitized video signals to produce an input digital signal D, dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 (where n is an integer not less than 2) so that said input digital data D is divided into a plurality of groups, each group containing not more than t pieces of different input digital data (where t is an integer) so that each piece of digital data in said plurality of groups is uniquely represented by a combination of output codes X 0 having m 0 different values, output codes X 1 having m 1 different values, . . . , and output codes X n-1 having m n-1 different values (where m 0 , m 1 , . . . , m n- are integers and m 0 ×m 1 × . . . ×m n-1 ≧n), a combination of said output codes X 0 , X 1 , . . . , X n-1 represents digital data in one of said plurality of groups does not represent digital data in another of said plurality of groups, and synthesizing said output codes X 0 , X 1 , . . . , X n-1 into at least two data channels; and output processing means for processing and recording said two data channels on a recording medium.

Claim 46

Dependent Claim 44 words

An encoder, comprising: encoding means for encoding digital data D into codes X and Y, where D=x.sup.a +by+z, X=x, and Y=by+z where a and b are real constants; and data generating means for generating two data channels based on said codes X and Y.

Claim 47

Dependent Claim 44 words

An encoder, comprising: encoding means for encoding digital data D into codes X and Y, where D=x.sup.a +by+z, X=x, and Y=by+z where a and b are real constants; and data generating means for generating two data channels based on said codes X and Y.

Claim 48

Dependent Claim 67 words

The encoder of claim 35, wherein said encoding means comprises: a first memory corresponding to said code X and storing a look-up table, said first memory reading and outputting said code X based on said digital data D; and a second memory corresponding to said code Y and storing a look-up table, said second memory reading and outputting said code Y based on said digital data D.

Claim 49

Dependent Claim 58 words

The encoder of claim 35, further comprising: combining means for receiving digitized video signals and for generating a combination signal by combining said digitized video signals; transforming means for transforming said combination signal to produce said digital data D; and wherein said data generating means includes variable length encoding means for variable length encoding said two data channels.

Claim 50

Dependent Claim 106 words

The encoder of claim 35, wherein said encoding means divides said digital data D which includes basic picture quality information and fine picture quality information; and further comprising, a discriminator determining whether said digital data D includes basic picture quality information or fine picture quality information, and for causing said data generating means to generate said two data channels based on said output codes X 0 , . . . , X n-1 when said digital data D includes said basic picture quality information and to generate said two data channels based on said digital data D when said digital data represent fine picture quality information.

Claim 51

Dependent Claim 77 words

A recording system, comprising: analog-to-digital converters converting video signals to produce digitized video signals; an encoder processing said digitized video signals to produce a digital signal D, and encoding said digital data D into codes X and Y, where D=x.sup.a +by+z, X=x, and Y=by+z where a and b are real constants; output processing means for processing said codes x and Y to produce two data channels and for recording said two data channels on a recording medium.

Claim 52

Dependent Claim 77 words

A recording system, comprising: analog-to-digital converters converting video signals to produce digitized video signals; an encoder processing said digitized video signals to produce a digital signal D, and encoding said digital data D into codes X and Y, where D=x.sup.a +by+z, X=x, and Y=by+z where a and b are real constants; output processing means for processing said codes x and Y to produce two data channels and for recording said two data channels on a recording medium.

Claim 53

Dependent Claim 45 words

An encoder, comprising: encoding means for encoding digital data D into codes X and Y, where D=x.sup.a +by+z, X=cx+z, and Y=y where a, b and c are real constants; and data generating means for generating two data channels based on said codes X and Y.

Claim 54

Dependent Claim 45 words

An encoder, comprising: encoding means for encoding digital data D into codes X and Y, where D=x.sup.a +by+z, X=cx+z, and Y=y where a, b and c are real constants; and data generating means for generating two data channels based on said codes X and Y.

Claim 55

Dependent Claim 67 words

The encoder of claim 40, wherein said encoding means comprises: a first memory corresponding to said code X and storing a look-up table, said first memory reading and outputting said code X based on said digital data D; and a second memory corresponding to said code Y and storing a look-up table, said second memory reading and outputting said code Y based on said digital data D.

Claim 56

Dependent Claim 58 words

The encoder of claim 40, further comprising: combining means for receiving digitized video signals and for generating a combination signal by combining said digitized video signals; transforming means for transforming said combination signal to produce said digital data D; and wherein said data generating means includes variable length encoding means for variable length encoding said two data channels.

Claim 57

Dependent Claim 106 words

The encoder of claim 40, wherein said encoding means divides said digital data D which includes basic picture quality information and fine picture quality information; and further comprising, a discriminator determining whether said digital data D includes basic picture quality information or fine picture quality information, and for causing said data generating means to generate said two data channels based on said output codes X 0 , . . . , X n-1 when said digital data D includes said basic picture quality information and to generate said two data channels based on said digital D data when said digital data represent fine picture quality information.

Claim 58

Dependent Claim 77 words

A recording system, comprising: analog-to-digital converters converting video signals to produce digitized video signals; an encoder processing said digitized video signals to produce a digital signal D, and encoding digital data D into codes X and Y, where D=x.sup.a +by+z, X=cx+z, and Y=y where a, b and c are real constants; output processing means for processing said codes x and Y to produce two data channels and for recording said two data channels on a recording medium.

Claim 59

Dependent Claim 77 words

A recording system, comprising: analog-to-digital converters converting video signals to produce digitized video signals; an encoder processing said digitized video signals to produce a digital signal D, and encoding digital data D into codes X and Y, where D=x.sup.a +by+z, X=cx+z, and Y=y where a, b and c are real constants; output processing means for processing said codes x and Y to produce two data channels and for recording said two data channels on a recording medium.

Claim 60

Independent Claim 72 words

A method of data-division encoding, comprising the steps of: (a) latching input digital data; (b) latching a predetermined number of the highest order bits latched in step (a) to generate a first main code Y1; (c) adding said predetermined number of highest order bits and the next bit of highest order to generate a second main code Y2; and (d) latching bits not latched in step (b) to generate a subcode Z.

Claim 61

Independent Claim 72 words

A method of data-division encoding, comprising the steps of: (a) latching input digital data; (b) latching a predetermined number of the highest order bits latched in step (a) to generate a first main code Y1; (c) adding said predetermined number of highest order bits and the next bit of highest order to generate a second main code Y2; and (d) latching bits not latched in step (b) to generate a subcode Z.

Claim 62

Dependent Claim 34 words

The method of claim 45, further comprising the step of: (e) dividing each of said first main code Y1, second main code Y2 and said subcode Z into at least first and second parts.

Claim 63

Independent Claim 49 words

A method of data-division encoding, comprising the steps of: (a) latching input digital data; (b) latching a pretermined number of highest order bits latched in step (a) to generate two main codes Y1 and Y2; and (c) latching bits not latched in step (b) to generate a subcode Z.

Claim 64

Independent Claim 49 words

A method of data-division encoding, comprising the steps of: (a) latching input digital data; (b) latching a pretermined number of highest order bits latched in step (a) to generate two main codes Y1 and Y2; and (c) latching bits not latched in step (b) to generate a subcode Z.

Claim 65

Dependent Claim 32 words

The method of claim 47, further comprising the step of: (d) dividing each of said two main codes Y1 and Y2 and said subcode Z into at least first and second parts.

Claim 66

Independent Claim 185 words

A method of decoding data-division encoded digital data, comprising the steps of: (a) separately latching a first main code Y1, second main code Y2, and a subcode Z with a first, second, and third latch, respectively; (b) selecting, with a first selector connected to said first and second latch, one of said first main code Y1 and second main code Y2 based on a control signal; (d) adding, in and adder connected to said first and second latch, said first main code Y1 and said second main code Y2; (f) selecting, with a second selector connected to said first selector and said adder, output of one of said steps (c) and (d) based on said control signal; (g) selecting, with a third selector connected to said third latch, one of said subcode Z and a zero value based on said control signal; and (h) latching, with a fourth latch connected to said second and third selectors, output of said step (f) as the high order bits of said digital signal and output of said step (g) as the low order bits of said digital signal.

Claim 67

Independent Claim 185 words

A method of decoding data-division encoded digital data, comprising the steps of: (a) separately latching a first main code Y1, second main code Y2, and a subcode Z with a first, second, and third latch, respectively; (b) selecting, with a first selector connected to said first and second latch, one of said first main code Y1 and second main code Y2 based on a control signal; (d) adding, in and adder connected to said first and second latch, said first main code Y1 and said second main code Y2; (f) selecting, with a second selector connected to said first selector and said adder, output of one of said steps (c) and (d) based on said control signal; (g) selecting, with a third selector connected to said third latch, one of said subcode Z and a zero value based on said control signal; and (h) latching, with a fourth latch connected to said second and third selectors, output of said step (f) as the high order bits of said digital signal and output of said step (g) as the low order bits of said digital signal.

Claim 68

Independent Claim 122 words

A method of encoding, comprising the steps of: (a) dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 (where n is an integer not less than 2) so that D=K 0 X 0 +K 1 X 1 + . . . +K n-1 X n-1 (where K 0 , K 1 , . . . K n-1 are real numbers) and said input digital data D being determined uniquely from said output codes X 0 , X 1 , . . . , X n-1 ; and (b) synthesizing said output codes X 0 , X 1 , . . . , X n-1 into at least two data channels.

Claim 69

Independent Claim 122 words

A method of encoding, comprising the steps of: (a) dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 (where n is an integer not less than 2) so that D=K 0 X 0 +K 1 X 1 + . . . +K n-1 X n-1 (where K 0 , K 1 , . . . K n-1 are real numbers) and said input digital data D being determined uniquely from said output codes X 0 , X 1 , . . . , X n-1 ; and (b) synthesizing said output codes X 0 , X 1 , . . . , X n-1 into at least two data channels.

Claim 70

Dependent Claim 28 words

The method of claim 50, wherein said step (a) divides said input digital data D into said two output codes X and Y so that D=2X+Y or D=3X+Y.

Claim 71

Dependent Claim 87 words

The method of claim 50, wherein said step (a) includes the step of (a1) reading said output codes X 0 , . . . , X n-1 from a plurality of memories based on said digital data D, each memory corresponding to one of said output codes X 0 , . . . , X n-1 and storing a look-up table for reading and outputting said corresponding one of said output codes X 0 , . . . , X n-1 based on said digital data D.

Claim 72

Dependent Claim 75 words

The method of claim 50, further comprising the steps of: (c) receiving digitized video signals; (d) generating a combination signal by combining said digitized video signals; (e) transforming said combination signal to produce said input digital data D; and wherein said step (b) includes the steps of (b1) synthesizing said output codes X 0 , . . . , X n-1 into said two data channels, and (b2) variable length encoding said two data channels.

Claim 73

Dependent Claim 109 words

The method of claim 50, wherein said step (a) divides said input digital data D which includes basic picture quality information and fine picture quality information; and further comprising the step of, (c) determining whether said input digital data D includes basic picture quality information or fine picture quality information, and wherein said step (b) generates said two data channels based on said output codes X 0 , . . . , X n-1 when said input digital data D includes said basic picture quality information and generates said two data channels based on said input digital data D when said input digital data represent fine picture quality information.

Claim 74

Independent Claim 77 words

A method of reproducing, comprising the steps of: (a) inputting and processing at least two data channels; (b) dividing said two data channels into n output codes X 0 , . . . , X n-1 ; (c) restoring digital data D where D=K 0 X 0+K 1X 1 + . . . +K n-1 X n-1 (where K 0 , . . . , K n-1 are real numbers); and (d) processing said digital data X.

Claim 75

Independent Claim 77 words

A method of reproducing, comprising the steps of: (a) inputting and processing at least two data channels; (b) dividing said two data channels into n output codes X 0 , . . . , X n-1 ; (c) restoring digital data D where D=K 0 X 0+K 1X 1 + . . . +K n-1 X n-1 (where K 0 , . . . , K n-1 are real numbers); and (d) processing said digital data X.

Claim 76

Independent Claim 216 words

A method of encoding comprising the steps of: (a) dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 (where n is an integer not less than 2) so that said input digital data D is divided into a plurality of groups, each group containing not more than t pieces of different input digital data (where t is an integer) so that each piece of digital data in said plurality of groups is uniquely represented by a combination of output codes X 0 having m 0 different values, output codes X 1 having m 1 different values, . . . , and output codes X n-1 having m n-1 different values (where m 0 , m 1 , . . . , m n-1 are integers and m 0 ×m 1 × . . . ×m n-1 ≦n), and a combination of said output codes X 0 , X 1 , . . . , X n-1 represents digital data in one of said plurality of groups does not represent digital data in another of said plurality of groups; and (b) synthesizing said output codes into at X 0 , X 1 , . . . , X n-1 into at least two data channels.

Claim 77

Independent Claim 216 words

A method of encoding comprising the steps of: (a) dividing input digital data D into n output codes X 0 , X 1 , . . . , X n-1 (where n is an integer not less than 2) so that said input digital data D is divided into a plurality of groups, each group containing not more than t pieces of different input digital data (where t is an integer) so that each piece of digital data in said plurality of groups is uniquely represented by a combination of output codes X 0 having m 0 different values, output codes X 1 having m 1 different values, . . . , and output codes X n-1 having m n-1 different values (where m 0 , m 1 , . . . , m n-1 are integers and m 0 ×m 1 × . . . ×m n-1 ≦n), and a combination of said output codes X 0 , X 1 , . . . , X n-1 represents digital data in one of said plurality of groups does not represent digital data in another of said plurality of groups; and (b) synthesizing said output codes into at X 0 , X 1 , . . . , X n-1 into at least two data channels.

Claim 78

Dependent Claim 109 words

The method of claim 56, wherein said step (a) divides said input digital data D into said plurality of groups, each including not greater than four different input digital data, so that an output code X having two different values and an output code Y having two different values exist, wherein each digital data in each of said plurality of groups is expressed uniquely by a combination of the output codes X and Y, and a combination of said output codes X and Y which represents digital data in said one of said plurality of groups does not represent digital data in said another of said plurality of groups.

Claim 79

Dependent Claim 87 words

The method of claim 56, wherein said step (a) includes the step of (a1) reading said output codes X 0 , . . . , X n-1 from a plurality of memories based on said digital data D, each memory corresponding to one of said output codes X 0 , . . . , X n-1 and storing a look-up table for reading and outputting said corresponding one of said output codes X 0 , . . . , X n-1 based on said digital data D.

Claim 80

Dependent Claim 75 words

The method of claim 56, further comprising the steps of: (c) receiving digitized video signals; (d) generating a combination signal by combining said digitized video signals; (e) transforming said combination signal to produce said input digital data D; and wherein said step (b) includes the steps of (b1) synthesizing said output codes X 0 , . . . , X n-1 into said two data channels, and (b2) variable length encoding said two data channels.

Claim 81

Dependent Claim 109 words

The method of claim 56, wherein said step (a) divides said input digital data D which includes basic picture quality information and fine picture quality information; and further comprising the step of, (c) determining whether said input digital data D includes basic picture quality information or fine picture quality information, and wherein said step (b) generates said two data channels based on said output codes X 0 , . . . , X n-1 when said input digital data D includes said basic picture quality information and generates said two data channels based on said input digital data D when said input digital data represent fine picture quality information.

Claim 82

Independent Claim 44 words

A method of encoding, comprising the steps of: (a) encoding digital data D into codes X and Y, where D=x.sup.a +by+z, X=x, and Y=by+z where a and b are real constants; and (b) generating two data channels based on said codes X and Y.

Claim 83

Independent Claim 44 words

A method of encoding, comprising the steps of: (a) encoding digital data D into codes X and Y, where D=x.sup.a +by+z, X=x, and Y=by+z where a and b are real constants; and (b) generating two data channels based on said codes X and Y.

Claim 84

Dependent Claim 90 words

The method of claim 61, wherein said step (a) comprises the steps of: (a1) reading said code X from a first memory corresponding to said code X based on said digital data D, said first memory storing a look-up table and outputting said code X based on said digital data D; and (a2) reading said code Y from a second memory corresponding to said code Y based on said digital data D, said second memory storing a look-up table and outputting said code Y based on said digital data D.

Claim 85

Dependent Claim 54 words

The method of claim 61, further comprising the steps of: (c) receiving digitized video signals; (d) generating a combination signal by combining said digitized video signals; (e) transforming said combination signal to produce said digital data D; and wherein said step (b) includes the step of (b1) variable length encoding said two data channels.

Claim 86

Dependent Claim 104 words

The method of claim 61, wherein said step (a) divides said digital data D which includes basic picture quality information and fine picture quality information; and further comprising the step of, (c) determining whether said digital data D includes basic picture quality information or fine picture quality information; and wherein said step (b) generates said two data channels based on said output codes X 0 , . . . , X n-1 when said digital data D includes said basic picture quality information and generates said two data channels based on said digital data D when said digital data represent fine picture quality information.

Claim 87

Independent Claim 45 words

A method of encoding, comprising the steps of: (a) encoding digital data D into codes X and Y, where D=x.sup.a +by+z, X=cx+z, and Y=y where a, b and c are real constants; and (b) generating two data channels based on said codes X and Y.

Claim 88

Independent Claim 45 words

A method of encoding, comprising the steps of: (a) encoding digital data D into codes X and Y, where D=x.sup.a +by+z, X=cx+z, and Y=y where a, b and c are real constants; and (b) generating two data channels based on said codes X and Y.

Claim 89

Dependent Claim 90 words

The method of claim 65, wherein said step (a) comprises the steps of: (a1) reading said code X from a first memory corresponding to said code X based on said digital data D, said first memory storing a look-up table and outputting said code X based on said digital data D; and (a2) reading said code Y from a second memory corresponding to said code Y based on said digital data D, said second memory storing a look-up table and outputting said code Y based on said digital data D.

Claim 90

Dependent Claim 54 words

The method of claim 65, further comprising the steps of: (c) receiving digitized video signals; (d) generating a combination signal by combining said digitized video signals; (e) transforming said combination signal to produce said digital data D; and wherein said step (b) includes the step of (b1) variable length encoding said two data channels.

Claim 91

Dependent Claim 104 words

The method of claim 65, wherein said step (a) divides said digital data D which includes basic picture quality information and fine picture quality information; and further comprising the step of, (c) determining whether said digital data D includes basic picture quality information or fine picture quality information; and wherein said step (b) generates said two data channels based on said output codes X 0 , . . . , X n-1 when said digital data D includes said basic picture quality information and generates said two data channels based on said digital data D when said digital data represent fine picture quality information.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1998-01-23	1998-07-25	1999-01-24	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2002-01-23	2002-07-25	2003-01-24	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2006-01-23	2006-07-25	2007-01-24	$7700.00	Window Closed / Lapsed

Data dividing apparatus

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