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:
Apr. 27, 2004
Filed:
Aug. 20, 1997
Applicant:
Inventor:
Weidong Mao, Princeton, NJ (US);
Assignee:
Next Level Communications, Inc., Rohnert Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/445 ; G06F 3/00 ; G06F 1/300 ; H04S 5/268 ;
U.S. Cl.
CPC ...
H04N 5/445 ; G06F 3/00 ; G06F 1/300 ; H04S 5/268 ;
Abstract
A rapid channel changer for use in a digital broadband access system. The subject rapid channel changer includes a cache buffer for storing the video data and a processor for detecting and pointing to the synchronization frames. When a subscriber's channel change request is received by the processing unit, the corresponding video signal can be quickly accessed and directed downstream to the subscriber, since the processor can immediately synchronize the video data without having to wait for the next synchronization frame.