Method and apparatus for encoding MPEG signals using variable rate encoding and dynamically varying transmission buffers
US6188700A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1997 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Oct 28, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.