Method and apparatus for simultaneous compression of video, audio and data signals
First Claim
Patent Images
1. A compression apparatus comprising:
- a transform device for accepting video signals and for generating transform components therefrom;
a selector connected to said transform device, for selecting desirable transform components;
said selector prioritizing said selected desirable transform components according to an allocation scheme;
compressor for compressing only said prioritized selected desirable transform components according to said allocation scheme;
a multiplexer for multiplexing said prioritized and compressed transform components;
wherein the video signals include signals from at least a first and second sources;
wherein said selector selects and determines the priority of allocation of desirable transform components for said at least first and second sources;
wherein said multiplexer multiplexes said selected desirable transform components from said first and second sources according to said allocation scheme; and
wherein said signals from said second source include non-video signals that have been modulated onto desirable video frequencies.
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Abstract
A program delivery system using a compression apparatus capable of compressing incoming video and non-video signals, such as audio and data signals. The system includes a frequency modulator which modulates the incoming audio, data or other non-video signals, unto selected video frequencies. A Fourier transformer generates a set of sinusoidal transform components corresponding to the incoming video, audio, data or other non-video signals, and a selector chooses the most desirable Fourier sinusoidal transforms. A multiplexer multiplexes only the selected Fourier transform components for further processing.
160 Citations
25 Claims
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1. A compression apparatus comprising:
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a transform device for accepting video signals and for generating transform components therefrom; a selector connected to said transform device, for selecting desirable transform components; said selector prioritizing said selected desirable transform components according to an allocation scheme; compressor for compressing only said prioritized selected desirable transform components according to said allocation scheme; a multiplexer for multiplexing said prioritized and compressed transform components; wherein the video signals include signals from at least a first and second sources; wherein said selector selects and determines the priority of allocation of desirable transform components for said at least first and second sources; wherein said multiplexer multiplexes said selected desirable transform components from said first and second sources according to said allocation scheme; and wherein said signals from said second source include non-video signals that have been modulated onto desirable video frequencies. - View Dependent Claims (2, 3, 4)
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5. A compression apparatus comprising:
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a transform device for accepting video signals and for generating transform components therefrom; a selector connected to said transform device, for selecting desirable transform components; said selector prioritizing said selected desirable transform components according to an allocation scheme; compressor for compressing only said prioritized selected desirable transform components according to said allocation scheme; a multiplexer for multiplexing said prioritized and compressed transform components; and further including a mapping system for producing identifying codes representative of said selected transform components and the type of signals associated with said selected transform components. - View Dependent Claims (6, 7, 8)
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9. A compression method comprising the steps of:
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generating video transform components from incoming video signals; selecting desirable transform components from said generated transform components; prioritizing said selected desirable transform components according to an allocation scheme; compressing only said selected prioritized desirable transform components according to said allocation scheme; multiplexing said prioritized and compressed selected desirable transform components; and wherein said video signals include non-video signals that have been modulated onto desirable video frequencies. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A compression method comprising the steps of:
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generating video transform components from incoming video signals; selecting desirable transform components from said generated transform components; prioritizing said selected desirable transform components according to an allocation scheme; compressing only said selected prioritized desirable transform components according to said allocation scheme; multiplexing said prioritized and compressed selected desirable transform components; and prioritizing at least some transform components that have not been selected for assignment to video or non-video signals requiring lesser fidelity of reproduction than said selected compressed signals.
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20. A compression method comprising the steps of:
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generating video transform components from incoming video signals; selecting desirable transform components from said generated transform components; prioritizing said selected desirable transform components according to an allocation scheme; compressing only said selected prioritized desirable transform components according to said allocation scheme; multiplexing said prioritized and compressed selected desirable transform components; and mapping said selected transform components for generating identifying codes representative of said selected transform components and the type of signals associated with said selected transform components.
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21. Signals generated by compressing video or non-video signals, using the steps of:
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generating video transform components from the video signals, if any; modulating the non-video signals, if any, unto selected video transform frequencies for generating video transform components therefrom; selecting desirable video transform components from said generated transform components; prioritizing said selected desirable transform components according to an allocation scheme; compressing only said selected prioritized desirable video transform components according to said allocation scheme; and multiplexing said prioritized and compressed selected desirable video transform components. - View Dependent Claims (22, 23, 24)
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25. A compression method comprising the steps of:
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modulating incoming non-video signals onto desirable video frequencies; generating transform components from said video modulated incoming non-video signals; selecting desirable transform components from said generated transform components; prioritizing said selected desirable transform components according to an allocation scheme; compressing only said selected prioritized desirable transform components according to said allocation scheme; and multiplexing said prioritized and compressed selected desirable transform components.
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Specification