US5790110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for generating video in a computer system
Assignee: Brooktree Broadband Holding Inc
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Filing: 1997-01-15
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Granted: 1998-08-04
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Expires: 2017-01-15
Abstract
Abstract A system and method for generating composite video signals in a computer. Digital pixel data may be processed by software to form component video pixel data, which may include luminance and chrominance components. A chrominance look-up table is provided in a display memory and is used for modulation of the chrominance components. The modulated components are then combined to form digital composite video pixel data which may be stored in a frame buffer in the display memory. Video control information is precalculated and stored in the display memory in advance. The digital composite video pixel data and video control information are then recovered from the display memory to produce a formatted stream of video data. The architecture of this system greatly reduces hardware complexity and bandwidth requirements. In addition, the process may be controlled by a media stream controller which is also adapted for audio and graphics processing. This allows the display memory and various other components to be shared by multiple media subsystems.
Inventors
- 👤 David C. Baker
- 👤 Daniel P. Mulligan
- 👤 Eric J. Schell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:36
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/64; H04N9/641; G; G09; G09G; G09G5/00; G09G5/36; G09G5/39; G09G2310/00; G09G2310/04; G09G2340/00; G09G2340/02; G09G2340/12; G09G2340/125; G09G5/02; G09G5/06; G09G5/393; H04N11/00; H04N11/06; H04N11/12; H04N11/14; H04N11/16
Claims Analysis
Total Claims: 74
Claim 1
Independent Claim
159 words
A system for generating a formatted stream of video data from a stream of active video data, said formatted stream including a plurality of segments each having a first portion containing video control information and a second portion containing active video data, said system comprising: a first memory buffer; a second memory buffer; a first controller circuit adapted for loading said first buffer with said video control information and, upon receiving a signal, for loading said second memory buffer with a portion of said stream of active video data; a pointer; an output circuit outputting data contained in said first memory buffer when said pointer points to a first address associated with said first memory buffer and outputting data contained in said second memory buffer when said pointer points to a second address associated with said second memory buffer; and a second controller circuit repetitively loading said pointer with an address sequence including said first and said second addresses.
Claim 2
Independent Claim
159 words
A system for generating a formatted stream of video data from a stream of active video data, said formatted stream including a plurality of segments each having a first portion containing video control information and a second portion containing active video data, said system comprising: a first memory buffer; a second memory buffer; a first controller circuit adapted for loading said first buffer with said video control information and, upon receiving a signal, for loading said second memory buffer with a portion of said stream of active video data; a pointer; an output circuit outputting data contained in said first memory buffer when said pointer points to a first address associated with said first memory buffer and outputting data contained in said second memory buffer when said pointer points to a second address associated with said second memory buffer; and a second controller circuit repetitively loading said pointer with an address sequence including said first and said second addresses.
Claim 3
Dependent Claim
13 words
The system of claim 1 further comprising means for repetitively generating said signal.
Claim 4
Dependent Claim
20 words
The system of claim 1 wherein said first and said second memory buffers are disposed on a single integrated circuit.
Claim 5
Dependent Claim
16 words
The system of claim 1 wherein said video control information comprises vertical synchronization and blanking information.
Claim 6
Dependent Claim
12 words
The system of claim 4 wherein said video control information is compressed.
Claim 7
Dependent Claim
14 words
The system of claim 4 wherein said video control information is run length encoded.
Claim 8
Dependent Claim
17 words
The system of claim 1 wherein said second portion of said segments further contains horizontal control information.
Claim 9
Dependent Claim
12 words
The system of claim 7 wherein said horizontal control information is compressed.
Claim 10
Independent Claim
191 words
A system for generating a formatted stream of video data from a stream of active video data, said formatted stream including a plurality of segments each having a first portion containing video control information and a second portion containing active video data, said system comprising: a first set of memory buffers; a second set of memory buffers; a first controller circuit adapted for loading at least two different types of video control information, each of said types being loaded to a different member of said first set of memory buffers, said first controller circuit further for loading said second set of memory buffers with portions of said stream of active video data upon receiving a signal; a pointer; an output circuit outputting data contained in a selected memory buffer in said first and said second sets of memory buffers when said pointer points to an address associated with said selected memory buffer; and a second controller circuit repetitively loading said pointer with an address sequence including at least one address associated with said first set of memory buffers and at least one address associated with said second set of memory buffers.
Claim 11
Independent Claim
191 words
A system for generating a formatted stream of video data from a stream of active video data, said formatted stream including a plurality of segments each having a first portion containing video control information and a second portion containing active video data, said system comprising: a first set of memory buffers; a second set of memory buffers; a first controller circuit adapted for loading at least two different types of video control information, each of said types being loaded to a different member of said first set of memory buffers, said first controller circuit further for loading said second set of memory buffers with portions of said stream of active video data upon receiving a signal; a pointer; an output circuit outputting data contained in a selected memory buffer in said first and said second sets of memory buffers when said pointer points to an address associated with said selected memory buffer; and a second controller circuit repetitively loading said pointer with an address sequence including at least one address associated with said first set of memory buffers and at least one address associated with said second set of memory buffers.
Claim 12
Dependent Claim
31 words
The system of claim 9 further comprising means for repetitively generating said signal for loading said second set of memory buffers with new portions of said stream of active video data.
Claim 13
Dependent Claim
105 words
The system of claim 9 wherein said first set of memory buffers contains a first memory buffer for receiving a first video control information and a second memory buffer for receiving a second video control information, wherein said second set of memory buffers contains at least a first memory buffer associated with said first video control information and at least a second memory buffer associated with said second video control information, and wherein said address sequence contains addresses of said first and said second memory buffers of said first set alternating with addresses of said first and said second memory buffers of said second set.
Claim 14
Dependent Claim
31 words
The system of claim 11 wherein said first and said second video control information are associated with an even and an odd vertical control information, respectively, of an interlaced video signal.
Claim 15
Dependent Claim
41 words
The system of claim 9 wherein a first subset of said second set of memory buffers is being loaded by said first controller circuit while said output circuit outputs data from a second subset of said second set of memory buffers.
Claim 16
Dependent Claim
16 words
The system of claim 11 wherein said first and said second video control information are compressed.
Claim 17
Dependent Claim
18 words
The system of claim 11 wherein said first and said second video control information are run length encoded.
Claim 18
Independent Claim
162 words
A system for generating a formatted stream of video data from a stream of active video data, said formatted stream including a plurality of segments each having a first portion containing video control information and a second portion containing active video data, said system comprising: a first memory buffer; means for loading said first memory buffer with said video control information; a second memory buffer; means responsive to a first signal for loading said second memory buffer with a portion of said stream of active video data; output means responsive to a second signal for outputting data stored in said first memory buffer and data stored in said second memory buffer to generate one of said segments of said formatted stream of video data; and means for repetitively generating a signal sequence comprising said first and said second signals, thereby generating said plurality of segments each having the same video control information but different portions of said stream of active video data.
Claim 19
Independent Claim
162 words
A system for generating a formatted stream of video data from a stream of active video data, said formatted stream including a plurality of segments each having a first portion containing video control information and a second portion containing active video data, said system comprising: a first memory buffer; means for loading said first memory buffer with said video control information; a second memory buffer; means responsive to a first signal for loading said second memory buffer with a portion of said stream of active video data; output means responsive to a second signal for outputting data stored in said first memory buffer and data stored in said second memory buffer to generate one of said segments of said formatted stream of video data; and means for repetitively generating a signal sequence comprising said first and said second signals, thereby generating said plurality of segments each having the same video control information but different portions of said stream of active video data.
Claim 20
Dependent Claim
19 words
The system of claim 16 wherein said first and said second buffers are disposed on a single integrated circuit.
Claim 21
Dependent Claim
16 words
The system of claim 16 wherein said video control information comprises vertical synchronization and blanking information.
Claim 22
Dependent Claim
12 words
The system of claim 18 wherein said video control information is compressed.
Claim 23
Dependent Claim
14 words
The system of claim 18 wherein said video control information is run length encoded.
Claim 24
Dependent Claim
17 words
The system of claim 16 wherein said second portion of said segments further contains horizontal control information.
Claim 25
Dependent Claim
12 words
The system of claim 21 wherein said horizontal control information is compressed.
Claim 26
Dependent Claim
60 words
The system of claim 16 wherein said output means comprises: a first address buffer for storing a first pointer pointing to said first memory buffer; a second address buffer for storing a second pointer pointing to said second memory buffer; and a circuit responsive to said second signal for sequentially outputting data pointed to by said first and second pointers.
Claim 27
Independent Claim
132 words
A method for generating a formatted stream of video data from a stream of active video data, said formatted stream including a plurality of segments each having a first portion containing video control information and a second portion containing active video data, said method comprising the steps of: loading a first memory buffer with said video control information; and repetitively performing the following steps to generate said plurality of segments each having the same video control information but different portions of said stream of active video data: loading a second memory buffer with a portion of said stream of active video data; and combining data stored in said first memory buffer and data stored in said second memory buffer to generate one of said segments of said formatted stream of video data.
Claim 28
Independent Claim
132 words
A method for generating a formatted stream of video data from a stream of active video data, said formatted stream including a plurality of segments each having a first portion containing video control information and a second portion containing active video data, said method comprising the steps of: loading a first memory buffer with said video control information; and repetitively performing the following steps to generate said plurality of segments each having the same video control information but different portions of said stream of active video data: loading a second memory buffer with a portion of said stream of active video data; and combining data stored in said first memory buffer and data stored in said second memory buffer to generate one of said segments of said formatted stream of video data.
Claim 29
Dependent Claim
19 words
The method of claim 24 wherein said first and said second buffers are disposed on a single integrated circuit.
Claim 30
Dependent Claim
16 words
The method of claim 24 wherein said video control information comprises vertical synchronization and blanking information.
Claim 31
Dependent Claim
12 words
The method of claim 26 wherein said video control information is compressed.
Claim 32
Dependent Claim
14 words
The method of claim 26 wherein said video control information is run length encoded.
Claim 33
Dependent Claim
20 words
The method of claim 24 wherein said second portion of said segments contains horizontal control information and active video data.
Claim 34
Dependent Claim
12 words
The method of claim 29 wherein said horizontal control information is compressed.
Claim 35
Independent Claim
149 words
A method for generating a formatted stream of video data from a stream of active video data, said formatted stream including a plurality of segments each having a first portion containing video control information and a second portion containing active video data, said method comprising the steps of: loading a first set of memory buffers with said video control information, said first set having at least first and second memory buffers for receiving first and second video control information, respectively; and repetitively performing the following steps to generate said plurality of segments: loading a second set of memory buffers with portions of said stream of active video data; and forming one of said segments of said formatted stream of video data by retrieving data from one of said memory buffers in said first set and retrieving data from at least one of said memory buffers in said second set.
Claim 36
Independent Claim
149 words
A method for generating a formatted stream of video data from a stream of active video data, said formatted stream including a plurality of segments each having a first portion containing video control information and a second portion containing active video data, said method comprising the steps of: loading a first set of memory buffers with said video control information, said first set having at least first and second memory buffers for receiving first and second video control information, respectively; and repetitively performing the following steps to generate said plurality of segments: loading a second set of memory buffers with portions of said stream of active video data; and forming one of said segments of said formatted stream of video data by retrieving data from one of said memory buffers in said first set and retrieving data from at least one of said memory buffers in said second set.
Claim 37
Dependent Claim
127 words
The system of claim 31 wherein said second set of memory buffers contains at least a first memory buffer associated with said first video control information and at least a second memory buffer associated with said second video control information, said forming step comprising: retrieving data from said first memory buffer of said first set and data from said first memory buffer of said second set, thereby forming one of said segments wherein the first portion of said segment includes the first video control information; and retrieving data from said second memory buffer of said first set and data from said second memory buffer of said second set, thereby forming one of said segments wherein the first portion of said segment includes the second video control information.
Claim 38
Dependent Claim
31 words
The system of claim 32 wherein said first and said second video control information are associated with an even and an odd vertical control information, respectively, of an interlaced video signal.
Claim 39
Dependent Claim
21 words
The system of claim 31 wherein said first and said second video control information each comprises vertical synchronization and blanking information.
Claim 40
Dependent Claim
16 words
The system of claim 31 wherein said first and said second video control information are compressed.
Claim 41
Dependent Claim
18 words
The system of claim 31 wherein said first and said second video control information are run length encoded.
Claim 42
Independent Claim
229 words
A system for generating analog composite video signal from digital active video data, comprising: means for modulating said digital active video data to generated modulated video data; a first memory buffer; a first controller circuit adapted for loading said first memory buffer with video control information; a segment formation circuit for forming a segment of video data having a first portion containing video control information and a second portion containing a portion of said modulated active video data, comprising: a second memory buffer; a second controller circuit for loading said second memory buffer with the portion of modulated active video data; a pointer; and an output circuit outputting data contained in said first memory buffer when said pointer points to a first address associated with said first memory buffer and outputting data contained in said second memory buffer when said pointer points to a second address associated with said second memory buffer; a third controller circuit repetitively loading said pointer with an address sequence including said first and said second addresses and causing said second controller circuit to load said second memory buffer with different portions of said modulated video data, thereby generating a plurality of segments each having the same video control information but different portions of said modulated active video data; and a digital-to-analog converter for converting said plurality of segments to said analog composite video signal.
Claim 43
Independent Claim
229 words
A system for generating analog composite video signal from digital active video data, comprising: means for modulating said digital active video data to generated modulated video data; a first memory buffer; a first controller circuit adapted for loading said first memory buffer with video control information; a segment formation circuit for forming a segment of video data having a first portion containing video control information and a second portion containing a portion of said modulated active video data, comprising: a second memory buffer; a second controller circuit for loading said second memory buffer with the portion of modulated active video data; a pointer; and an output circuit outputting data contained in said first memory buffer when said pointer points to a first address associated with said first memory buffer and outputting data contained in said second memory buffer when said pointer points to a second address associated with said second memory buffer; a third controller circuit repetitively loading said pointer with an address sequence including said first and said second addresses and causing said second controller circuit to load said second memory buffer with different portions of said modulated video data, thereby generating a plurality of segments each having the same video control information but different portions of said modulated active video data; and a digital-to-analog converter for converting said plurality of segments to said analog composite video signal.
Claim 44
Dependent Claim
96 words
The system of claim 37 wherein said digital active video data contains separate sets of luminance component data and chrominance component data, and wherein said modulating means comprises: a memory device for storing a table of modulated chrominance components; a circuit associating each member of said set of chrominance component data with a member of said table, thereby generating a set of modulated chrominance component data; and an adder for forming said modulated active video data by adding members in said set of luminance component data and members in said set of modulated chrominance component data.
Claim 45
Dependent Claim
95 words
The system of claim 37 wherein said digital active video data has a sample frequency corresponding to an integer multiple of a carrier frequency and contains separate sets of luminance component data and chrominance component data, and wherein said modulating means comprises: means for generating a first set of modulated data by changing a sign bit of selected members of said set of chrominance component data; and an adder for generating said modulated active video data by adding members of said set of digital luminance component data and members of said set of modulated data.
Claim 46
Dependent Claim
36 words
The system of claim 37 further comprising a first-in-first-out buffer separating said segment formation circuit and said digital-to-analog converter for allowing a rate of forming segments different from a rate of converting by said digital-to-analog converter.
Claim 47
Independent Claim
273 words
A system for generating analog composite video signal from digital active video data, said digital active video data containing separate sets of luminance component data and chrominance component data, said system comprising: a first memory buffer; a first controller circuit adapted for loading said first memory buffer with video control information; a segment formation circuit for forming a segment of video data having a first portion containing video control information and a second portion containing a portion of said active video data, comprising: a second memory buffer; a second controller circuit for loading said second memory buffer with the portion of active video data; a pointer; and an output circuit outputting data contained in said first memory buffer when said pointer points to a first address associated with said first memory buffer and outputting data contained in said second memory buffer when said pointer points to a second address associated with said second memory buffer; a third controller circuit repetitively loading said pointer with an address sequence including said first and said second addresses and causing said second controller circuit to load said second memory buffer with different portions of said video data, thereby generating a plurality of segments each having the same video control information but different portions of said active video data; means for modulating said chrominance component data in said plurality of segments to generated modulated video data; an adder for adding said modulated video data and said luminance component data in said plurality of segments to generate digital composite pixel data; and a digital-to-analog converter for converting said digital composite pixel data to form said analog composite video signal.
Claim 48
Independent Claim
273 words
A system for generating analog composite video signal from digital active video data, said digital active video data containing separate sets of luminance component data and chrominance component data, said system comprising: a first memory buffer; a first controller circuit adapted for loading said first memory buffer with video control information; a segment formation circuit for forming a segment of video data having a first portion containing video control information and a second portion containing a portion of said active video data, comprising: a second memory buffer; a second controller circuit for loading said second memory buffer with the portion of active video data; a pointer; and an output circuit outputting data contained in said first memory buffer when said pointer points to a first address associated with said first memory buffer and outputting data contained in said second memory buffer when said pointer points to a second address associated with said second memory buffer; a third controller circuit repetitively loading said pointer with an address sequence including said first and said second addresses and causing said second controller circuit to load said second memory buffer with different portions of said video data, thereby generating a plurality of segments each having the same video control information but different portions of said active video data; means for modulating said chrominance component data in said plurality of segments to generated modulated video data; an adder for adding said modulated video data and said luminance component data in said plurality of segments to generate digital composite pixel data; and a digital-to-analog converter for converting said digital composite pixel data to form said analog composite video signal.
Claim 49
Dependent Claim
52 words
The system of claim 41 wherein said digital active video data has a sample frequency corresponding to an integer multiple of a carrier frequency, said means for modulating comprising means for generating a set of modulated data by changing a sign bit of selected members of said set of chrominance component data.
Claim 50
Dependent Claim
33 words
The system of claim 41 further comprising a first-in-first-out buffer separating said segment formation circuit and said means for modulating for allowing a rate of forming segments different from a rate of modulating.
Claim 51
Dependent Claim
12 words
The system of claim 41 wherein said video control information is compressed.
Claim 52
Dependent Claim
101 words
In combination for providing multimedia information including video, audio and graphics information, a central processing unit (CPU), a display memory for receiving the video, audio and graphics information, controller means for controlling the passage of the video, audio and graphics information to the display memory for recording in the display memory, the video information including active video, first means including the CPU for providing the active video in an unmodulated format to the controller means, and second means including the controller means for converting the active video in the unmodulated format to a modulated format for recording in the display memory.
Claim 53
Dependent Claim
101 words
In combination for providing multimedia information including video, audio and graphics information, a central processing unit (CPU), a display memory for receiving the video, audio and graphics information, controller means for controlling the passage of the video, audio and graphics information to the display memory for recording in the display memory, the video information including active video, first means including the CPU for providing the active video in an unmodulated format to the controller means, and second means including the controller means for converting the active video in the unmodulated format to a modulated format for recording in the display memory.
Claim 54
Dependent Claim
34 words
In a combination as set forth in claim 45, the video information including video control information, and third means for recording the video control information in the display memory in run length encoded format.
Claim 55
Dependent Claim
83 words
In a combination as set forth in claim 46, the video information being disposed in successive frames each defined by a plurality of horizontal lines having a horizontal blanking interval at the end of each line and each defined by a vertical blanking interval at the end of each frame, and fourth means responsive to the converted information from the second means and the run length encoded format from the third means for reconstructing the video information in each line in each frame.
Claim 56
Dependent Claim
129 words
In combination for providing multimedia information including video, audio and graphics streams, a display memory constructed to store video, graphics and audio information in different portions of the display memory, controller means for providing a controlled transfer of video, graphics and audio information to the display memory at different times, first means for providing in the display memory active video for successive portions of the video stream there being recorded in the display memory portions with repeatable information for repetition, at intervals in the video stream, the active video and the repeatable information defining a frame of the video stream, and second means for retrieving the active video and the repeatable information from the display memory in a sequence such that the frame of the video stream is reconstructed.
Claim 57
Dependent Claim
129 words
In combination for providing multimedia information including video, audio and graphics streams, a display memory constructed to store video, graphics and audio information in different portions of the display memory, controller means for providing a controlled transfer of video, graphics and audio information to the display memory at different times, first means for providing in the display memory active video for successive portions of the video stream there being recorded in the display memory portions with repeatable information for repetition, at intervals in the video stream, the active video and the repeatable information defining a frame of the video stream, and second means for retrieving the active video and the repeatable information from the display memory in a sequence such that the frame of the video stream is reconstructed.
Claim 58
Dependent Claim
56 words
In a combination as recited in claim 48, the portions with the repeatable information providing run length encoding indicating a particular number of the repeatable information in the run length encoding, and the second means being responsive to the run length encoding for providing the particular number of the repeatable information in the run length encoding.
Claim 59
Dependent Claim
120 words
In a combination as recited in claim 48, the video stream being provided in frames each formed by a plurality of lines and by a blanking interval at the end of each line and a blanking interval at the end of each frame, the portions with the repeatable information being provided for the blanking intervals at the end of each line and at the end of each frame, the active video being in a compressed format, there being in the display memory a look-up table having information for decompressing the active video with the compressed format, and third means responsive to the information in the look-up table and the active video with the compressed information for decompressing the active video.
Claim 60
Dependent Claim
89 words
In combination for providing multimedia information including video, audio and graphics information, a display memory, memory means for storing video information for a plurality of pixels in the display memory, a look-up table in the display memory for expanding the number of pixels of the video information, first means responsive to the stored video information for the plurality of pixels and to the look-up table for expanding the number of pixels of the video information, and second means for storing the expanded number of pixels in the display memory.
Claim 61
Dependent Claim
89 words
In combination for providing multimedia information including video, audio and graphics information, a display memory, memory means for storing video information for a plurality of pixels in the display memory, a look-up table in the display memory for expanding the number of pixels of the video information, first means responsive to the stored video information for the plurality of pixels and to the look-up table for expanding the number of pixels of the video information, and second means for storing the expanded number of pixels in the display memory.
Claim 62
Dependent Claim
60 words
In a combination set forth in claim 51, third means for providing repeatable video information in abbreviated form in the display memory, fourth means for indicating when the repeatable video information is to be provided, and fifth means operatively coupled to the third and fourth means for providing the repeatable video information at the times indicated by the fourth means.
Claim 63
Dependent Claim
54 words
In a combination as set forth in claim 51, the look-up table providing progressive values of chrominance, third means for providing progressive values of luminance, fourth means for interpolating for progressive pixels between each successive pair of luminance values, and fifth means for providing successive chrominance values for the progressive pixels after such interpolation.
Claim 64
Dependent Claim
41 words
In a combination as set forth in claim 53, means for combining the interpolated values of luminance for progressive pixels and the progressive chrominance values in a particular relationship to provide indications of the color and intensity at the progressive pixels.
Claim 65
Dependent Claim
105 words
In combination for providing multimedia information including video, audio and graphics information, a display memory for storing video, audio and graphics information, first means for providing progressive values of luminance, second means for interpolating a plurality of values of luminance between each pair of progressive luminance values, third means for providing a plurality of progressive chrominance values, fourth means for combining the progressive chrominance values with successive ones of the interpolated luminance values to provide color and intensity indications for successive ones of a plurality of pixels, and fifth means for storing the color and intensity indications for the progressive pixels in the display memory.
Claim 66
Dependent Claim
105 words
In combination for providing multimedia information including video, audio and graphics information, a display memory for storing video, audio and graphics information, first means for providing progressive values of luminance, second means for interpolating a plurality of values of luminance between each pair of progressive luminance values, third means for providing a plurality of progressive chrominance values, fourth means for combining the progressive chrominance values with successive ones of the interpolated luminance values to provide color and intensity indications for successive ones of a plurality of pixels, and fifth means for storing the color and intensity indications for the progressive pixels in the display memory.
Claim 67
Dependent Claim
89 words
In a combination as set forth in claim 55, sixth means for providing a look-up table providing progressive increments in each of the progressive chrominance values, and seventh means for combining the progressive increments from the look-up table with the progressive chrominance values to obtain progressive interpolations of the chrominance values, the fourth means being operative to combine the successive interpolations of the chrominance values and the successive interpolations of the luminance values to provide the color and intensity indications for the successive ones of the plurality of pixels.
Claim 68
Dependent Claim
52 words
In a combination as set forth in claim 55, eighth means for providing indications at each instant of the positioning in the look-up table of the progressive increments being combined by the seventh means from the look-up table with the progressive chrominance values to obtain the progressive interpolations of the chrominance values.
Claim 69
Dependent Claim
81 words
In a combination as set forth in claim 55, the progressive pixels in the display memory being provided in a raster scan, sixth means for providing in an abbreviated format repeatable information to be provided in each raster scan, and seventh means for expanding the repeatable information from the abbreviated format and for combining the expanded repeatable information with the color and intensity indications for the progressive pixels in the display memory to obtain the video information for the raster scan.
Claim 70
Dependent Claim
71 words
In a combination as set forth in claim 55, the progressive chrominance values being stored in a look-up table in the display memory, and the third means being operative to obtain the progressive chrominance values from the display memory for combination in the fourth means with the successive ones of the interpolated luminance values to provide the color and intensity indications for the successive ones of the pixels in the plurality.
Claim 71
Dependent Claim
95 words
In a combination as set forth in claim 55, the look-up table provided by the sixth means being stored in the display memory, the progressive pixels in the display memory being provided in a raster scan, sixth means for providing in an abbreviated format repeatable information to be provided in each raster scan, and seventh means for expanding the repeatable information from the abbreviated format and for combining the expanded repeatable information with the color and intensity indications for the progressive pixels in the display memory to obtain the video information for the raster scan.
Claim 72
Dependent Claim
108 words
In combination for providing multimedia information including video, audio and graphics information, first means for providing progressive values of luminance, second means for providing interpolations between successive pairs of progressive values of luminance, third means for providing unmodulated values of chrominance, fourth means for providing a look-up table representing progressions in modulated chrominance information, fifth means for using the unmodulated values of chrominance and the progressions in modulated chrominance information to generate progressive modulated chrominance values for the video information, and sixth means for combining the interpolated values of luminance and the progressive modulated chrominance values from the fifth means to obtain progressive indications of the video information.
Claim 73
Dependent Claim
108 words
In combination for providing multimedia information including video, audio and graphics information, first means for providing progressive values of luminance, second means for providing interpolations between successive pairs of progressive values of luminance, third means for providing unmodulated values of chrominance, fourth means for providing a look-up table representing progressions in modulated chrominance information, fifth means for using the unmodulated values of chrominance and the progressions in modulated chrominance information to generate progressive modulated chrominance values for the video information, and sixth means for combining the interpolated values of luminance and the progressive modulated chrominance values from the fifth means to obtain progressive indications of the video information.
Claim 74
Dependent Claim
34 words
In a combination as set forth in claim 61, a display memory for storing graphics, video and audio information, the look-up table representing progressions in modulated chrominance information being provided in the display memory.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-03 | 2002-02-02 | 2002-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-03 | 2006-02-02 | 2006-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-03 | 2010-02-02 | 2010-08-04 | $7700.00 | Window Closed / Lapsed |