Method and apparatus for encoding MPEG signals using variable rate encoding and dynamically varying transmission buffers
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United States of America Patent
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Feb 13, 2001
Grant Date -
N/A
app pub date -
Oct 28, 1997
filing date -
Nov 7, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An encoded signal signal transmission method and apparatus is disclosed which performs stable signal reproduction without causing any breakage of a buffer on the side of a decoder system even when the transmission bit rate is changed. In encoding and transmitting a digital signal at a variable bit rate, an encoder buffer for temporarily storing an encoded signal on the side of an encoder system has a code buffer used by the encoder system for rate control, with the size of the code buffer being constant, and after a predetermined delay time from when the encoding bit rate is altered, an output bit rate from the encoder buffer is altered to a new value of the encoding bit rate.
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