Video disk with multiplexed video and digital information

Claim 2

A video disk having recorded thereon in frequency division multiplex a television video signal and a digital data signal, wherein said recorded television video signal comprises a series of frames, each frame comprising a plurality of fields having a vertical synchronizing signal at one end thereof: wherein said recorded digital data signal is divided into blocks each consisting of a prescribed number of bits and is interleaved, thereby having a recorded length after interleaving longer than one of said fields and shorter than one of said frames; and wherein an end of said interleaved digital data signal is recorded at a fixed position before one of said vertical synchronizing signals of said recorded television signal.

Claim 3

A recording device for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits, said device comprising: means for modulating said television video signal; means for interleaving said blocks whereby a length of one of said a interleaved blocks is longer than a length of one of said fields and shorter than a length of one of said frames; means for detecting said vertical synchronizing signal; means for disposing said interleaved blocks so that an end of one or more interleaved blocks is placed before a vicinity of a position of said detected vertical synchronizing signal; means for combining said modulated television video signal and said disposed blocks of said digital data signal; and means for recording an output of said combining means on a video disk, whereby said television video signal and said digital data signal are recorded in frequency division multiplexing on a same track of said video disk.

Claim 4

A recording device for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits, said device comprising: means for modulating said television video signal; means for interleaving said blocks whereby a length of one of said a interleaved blocks is longer than a length of one of said fields and shorter than a length of one of said frames; means for detecting said vertical synchronizing signal; means for disposing said interleaved blocks so that an end of one or more interleaved blocks is placed before a vicinity of a position of said detected vertical synchronizing signal; means for combining said modulated television video signal and said disposed blocks of said digital data signal; and means for recording an output of said combining means on a video disk, whereby said television video signal and said digital data signal are recorded in frequency division multiplexing on a same track of said video disk.

Claim 5

A reproduction device for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, said device comprising:. means for producing a reproduction signal from a track of a video disk; filter means for separating said television video signal and said digital data signal from said reproduction signal; means for reproducing continuously a plurality of said blocks of said digital data signal from their beginning to their end; and means for reproducing at least one of said frames of said television video signal recorded after one of said vertical synchronizing signals located a fixed position relative to said beginning of said blocks and recorded before a prescribed position of said video signal located after said end of said blocks.

Claim 6

A reproduction device for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, said device comprising:. means for producing a reproduction signal from a track of a video disk; filter means for separating said television video signal and said digital data signal from said reproduction signal; means for reproducing continuously a plurality of said blocks of said digital data signal from their beginning to their end; and means for reproducing at least one of said frames of said television video signal recorded after one of said vertical synchronizing signals located a fixed position relative to said beginning of said blocks and recorded before a prescribed position of said video signal located after said end of said blocks.

Claim 7

A reproduction device for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said an interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, said device comprising: means for producing a reproduction signal from a track of a video disk; filter means for separating said television video signal and said digital data signal from said reproduction signal; means for reproducing continuously a plurality of said blocks of said digital data signal from the beginning to the end of said plurality of said blocks; means for detecting a beginning and an end of a first group consisting of a prescribed number of fields of said television video signal, said first group corresponding to said reproduced plurality of blocks of said digital data signal; and means for squelching said television signal when said reproducing means is reproducing blocks of said digital data signal recorded in a section of said track of said video disk other than a section in which is recorded said first group from its said beginning to its said end.

Claim 8

A reproduction device for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said an interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, said device comprising: means for producing a reproduction signal from a track of a video disk; filter means for separating said television video signal and said digital data signal from said reproduction signal; means for reproducing continuously a plurality of said blocks of said digital data signal from the beginning to the end of said plurality of said blocks; means for detecting a beginning and an end of a first group consisting of a prescribed number of fields of said television video signal, said first group corresponding to said reproduced plurality of blocks of said digital data signal; and means for squelching said television signal when said reproducing means is reproducing blocks of said digital data signal recorded in a section of said track of said video disk other than a section in which is recorded said first group from its said beginning to its said end.

Claim 9

A reproduction device for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said an interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, a plurality of serially adjacent blocks corresponding to a group of a predetermined number of fields of said television signal, said device comprising: means for producing a reproduction signal from a track of a video disk; filter means for separating said television video signal and said digital data signal from said reproduction signal; means for reproducing continuously a plurality of said blocks of said digital data signal from the beginning to the end of said plurality of said blocks; means for detecting a beginning and an end of a first one of said groups of said television video signal, said first group corresponding to said reproduced plurality of blocks of said digital data signal; means for repetitively reproducing at least one frame located between said detected beginning and said detected end of said television video signal; a memory having a storage capacity not smaller than the contents of at least one block of said digital data signal; and means for storing in said memory on different repetitive operations of said repetitive reproducing means sequential ones of said blocks of said digital data signal.

Claim 10

A reproduction device for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said an interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, a plurality of serially adjacent blocks corresponding to a group of a predetermined number of fields of said television signal, said device comprising: means for producing a reproduction signal from a track of a video disk; filter means for separating said television video signal and said digital data signal from said reproduction signal; means for reproducing continuously a plurality of said blocks of said digital data signal from the beginning to the end of said plurality of said blocks; means for detecting a beginning and an end of a first one of said groups of said television video signal, said first group corresponding to said reproduced plurality of blocks of said digital data signal; means for repetitively reproducing at least one frame located between said detected beginning and said detected end of said television video signal; a memory having a storage capacity not smaller than the contents of at least one block of said digital data signal; and means for storing in said memory on different repetitive operations of said repetitive reproducing means sequential ones of said blocks of said digital data signal.

Claim 11

A recording method for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits, said method comprising the steps of: modulating said television video signal; interleaving said blocks whereby a length of one of said interleaved blocks is longer than a length of one of said fields and shorter than a length of one of said frames; detecting said vertical synchronizing signal; disposing said interleaved blocks so that an end of one or more interleaved blocks is placed before a vicinity of a position of said detected vertical synchronizing signal; combining said modulated television video signal and said disposed blocks of said digital data signal; and recording an output of said combining step on a video disk, whereby said television video signal and said digital data signal are recorded in frequency division multiplexing on a same track of said video disk.

Claim 12

A recording method for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits, said method comprising the steps of: modulating said television video signal; interleaving said blocks whereby a length of one of said interleaved blocks is longer than a length of one of said fields and shorter than a length of one of said frames; detecting said vertical synchronizing signal; disposing said interleaved blocks so that an end of one or more interleaved blocks is placed before a vicinity of a position of said detected vertical synchronizing signal; combining said modulated television video signal and said disposed blocks of said digital data signal; and recording an output of said combining step on a video disk, whereby said television video signal and said digital data signal are recorded in frequency division multiplexing on a same track of said video disk.

Claim 13

A reproduction method for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, said device comprising: producing a reproduction signal from a track of a video disk; separating said television video signal and said digital data signal from said reproduction signal; reproducing continuously a plurality of said blocks of said digital data signal from their beginning to their end; and reproducing at least one of said frames of said television video signal recorded after one of said vertical synchronizing signals located a fixed position relative to said beginning of said blocks and recorded before a prescribed position of said video signal located after said end of said blocks.

Claim 14

A reproduction method for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, said device comprising: producing a reproduction signal from a track of a video disk; separating said television video signal and said digital data signal from said reproduction signal; reproducing continuously a plurality of said blocks of said digital data signal from their beginning to their end; and reproducing at least one of said frames of said television video signal recorded after one of said vertical synchronizing signals located a fixed position relative to said beginning of said blocks and recorded before a prescribed position of said video signal located after said end of said blocks.

Claim 15

A reproduction method for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said an interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, said method comprising the steps of: producing a reproduction signal from a track of a video disk; separating said television video signal and said digital data signal from said reproduction signal; reproducing continuously a plurality of said blocks of said digital data signal from their beginning to their end; detecting a beginning and an end of a first group consisting of a prescribed number of fields of said television video signal, said first group corresponding to said reproduced plurality of blocks of said digital data signal; and squelching said television signal when said reproducing step is reproducing blocks of said digital data signal recorded in a section of said track of said video disk other than a section in which is recorded said first group from its said beginning to its said end.

Claim 16

A reproduction method for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said an interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, said method comprising the steps of: producing a reproduction signal from a track of a video disk; separating said television video signal and said digital data signal from said reproduction signal; reproducing continuously a plurality of said blocks of said digital data signal from their beginning to their end; detecting a beginning and an end of a first group consisting of a prescribed number of fields of said television video signal, said first group corresponding to said reproduced plurality of blocks of said digital data signal; and squelching said television signal when said reproducing step is reproducing blocks of said digital data signal recorded in a section of said track of said video disk other than a section in which is recorded said first group from its said beginning to its said end.

Claim 17

A reproduction method for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said an interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, a plurality of serially adjacent blocks corresponding to a group of a predetermined number of fields of said television signal, said method comprising the steps of: producing a reproduction signal from a track of a video disk; separating said television video signal and said digital data signal from said reproduction signal; reproducing continuously a plurality of said blocks of said digital data signal from their beginning to their end; detecting a beginning and an end of a first one of said groups of said television video signal, said first group corresponding to said reproduced plurality of blocks of said digital data signal; repetitively reproducing at least one frame located between said detected beginning and said detected end of said television video signal; and storing in a memory on different repetitive operations of said repetitive reproducing steps sequential ones of said blocks of said digital data signal, said memory having a storage capacity not smaller than the contents of at least one block of said digital data signal.

Claim 18

A reproduction method for a television video signal and a digital data signal, said television video signal comprising a series of frames, each frame being divided into fields with a vertical synchronizing signal located in each field, said digital data signal being divided into blocks each consisting of a prescribed number of bits and being interleaved, whereby a length of said an interleaved block is longer that a length of one of said fields and shorter than a length of one of said frames, said television video signal and said interleaved digital data signal being recorded in time division multiplexing on a same track of a video disk, an end of the recorded digital data signal comprising one or more blocks being recorded before the vicinity of a position of said vertical synchronizing signal, a plurality of serially adjacent blocks corresponding to a group of a predetermined number of fields of said television signal, said method comprising the steps of: producing a reproduction signal from a track of a video disk; separating said television video signal and said digital data signal from said reproduction signal; reproducing continuously a plurality of said blocks of said digital data signal from their beginning to their end; detecting a beginning and an end of a first one of said groups of said television video signal, said first group corresponding to said reproduced plurality of blocks of said digital data signal; repetitively reproducing at least one frame located between said detected beginning and said detected end of said television video signal; and storing in a memory on different repetitive operations of said repetitive reproducing steps sequential ones of said blocks of said digital data signal, said memory having a storage capacity not smaller than the contents of at least one block of said digital data signal.