Buffer management in variable bit-rate compression systems

Details Buffer management in variable bit-rate compression systems Buffer management in variable bit-rate compression systems

2005-09-13

2005-09-13

Rao, Andy (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240030, C375S240040

Reexamination Certificate

active

06944221

ABSTRACT:
A method of compression is provided for transmission of digital video signals between an encoder buffer and a decoder buffer. A tunable delay is provided at the encoder, suitably in the form of a portion of encoder buffer memory, with data being read out to a communications channel at a rate determined by the input bit rate of signals received a predetermined number of frame periods later. Use of the tunable delay improves efficiency of decoder buffering by maintaining a relatively constant level of decoder buffer fullness irrespective of signal bit rates.

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“Constraints on Variable Bit-Rate Video for ATM Networks”, Amy R. Reibman and Barry G. Haskell, IEEE Transactions on Circuits and Systems for Video Technology, vol. 2, No. 4, Dec. 1992, pp. 361-372.

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