Video encoder with multiple outputs having different attributes

Details Video encoder with multiple outputs having different attributes Video encoder with multiple outputs having different attributes

2003-03-28

2009-08-25

Philippe, Gims S (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240120

Reexamination Certificate

active

07580460

ABSTRACT:
A video encoder having multiple channels each capable of producing an independently controlled encoded output. In one embodiment, the video encoder has circuitry common to all of the channels and separate circuitry for each channel. The common circuitry can include a motion compensator, a transformer, and a local decoder. One or more of the separate circuitry can include a quantizer, a scanner, an encoder, and a buffer. Each channel includes quantization feedback, and one channel output is fed back to the local decoder for use in generating reference pictures. The channels are separately controllable for the characteristics of at least one of quantization, scanning, and encoding.

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