The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2008
Filed:
Sep. 20, 2000
Vincent Liu, San Diego, CA (US);
Siu-wai Wu, San Diego, CA (US);
Michael Casteloes, Poway, CA (US);
Robert J. Stone, Poway, CA (US);
Rebecca Lam, San Diego, CA (US);
Vincent Liu, San Diego, CA (US);
Siu-Wai Wu, San Diego, CA (US);
Michael Casteloes, Poway, CA (US);
Robert J. Stone, Poway, CA (US);
Rebecca Lam, San Diego, CA (US);
General Instrument Corporation, Horsham, PA (US);
Abstract
A statistical multiplexer for coding and multiplexing multiple channels of digital television data, or multiple panels of HDTV digital television data. A bit rate need parameter is determined for each encoder in a stat mux group, and an encoding bit rate is allocated to each channel based on its need parameter. A transmission bit rate is allocated to each channel as a time-lagged version of its need parameter to minimize a rate mismatch between the output and the input of a decoder buffer. A packet processor checks for impending decoder buffer overflow or underflow events to set minimum and maximum limits on the transmission bit rate. Moreover, these limits are set based on whether a new transmission bit rate can be implemented before the decoding time stamp (DTS) of the current or next frame.