Multi-channel video compression system
First Claim
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1. An apparatus comprising:
- an input circuit configured to (i) generate a first intermediate signal by multiplexing a plurality of input video signals, each of said input video signal being received through a different one of a plurality of channels and (ii) temporally decimate at least two of said input video signals using different time ratios on each of said at least two of said input video signals, said time ratios being based on different priorities of said channels;
a storage circuit configured to (i) parse said first intermediate signal into a plurality of sequences, each of said sequences corresponds to a different one of said input video signals, (ii) store said sequences in a plurality of buffers, each of said buffers storing in a different one of said sequences and (iii) generate a second intermediate signal by time multiplexing said sequences from said buffers; and
an output circuit configured to generate an output video signal by compressing a portion of each of said sequences in said second intermediate signal in a rotating pattern, each of said portions comprising a group of pictures.
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Abstract
An apparatus generally comprising an input circuit, a storage circuit and an output circuit is disclosed. The input circuit may be configured to generate a first intermediate signal from a plurality of input video signals. The storage circuit may be configured to (i) organize the first intermediate signal into a plurality of sequences each related to one of the input video signals and (ii) generate a second intermediate signal from the sequences. The output circuit may be configured to generate an output video signal by compressing the second intermediate signal.
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Citations
17 Claims
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1. An apparatus comprising:
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an input circuit configured to (i) generate a first intermediate signal by multiplexing a plurality of input video signals, each of said input video signal being received through a different one of a plurality of channels and (ii) temporally decimate at least two of said input video signals using different time ratios on each of said at least two of said input video signals, said time ratios being based on different priorities of said channels; a storage circuit configured to (i) parse said first intermediate signal into a plurality of sequences, each of said sequences corresponds to a different one of said input video signals, (ii) store said sequences in a plurality of buffers, each of said buffers storing in a different one of said sequences and (iii) generate a second intermediate signal by time multiplexing said sequences from said buffers; and an output circuit configured to generate an output video signal by compressing a portion of each of said sequences in said second intermediate signal in a rotating pattern, each of said portions comprising a group of pictures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus comprising:
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an input circuit configured to (i) generate an intermediate signal by time multiplexing a plurality of input video signals, each of said input video signals being received in a different one of a plurality of channels and (ii) temporally decimate at least two of said input video signals using different time ratios on each of said at least two of said input video signals, said time ratios being based on different priorities of said channels; a storage circuit configured to (i) simultaneously store at least one reference picture for each of said channels and (ii) arrange said reference pictures into a plurality of sets, one of said sets per each of said channels; and an output circuit configured to (i) generate said reference pictures, (ii) exchange said reference pictures with said storage circuit and (iii) generate an output video signal by compressing a portion of each of said input video signals in said intermediate signal in a rotating pattern using said reference pictures, each of said portions comprising a group of pictures. - View Dependent Claims (16, 17)
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Specification