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:
May. 16, 2006
Filed:
May. 02, 2001
Kun-pei Chen, Ambler, PA (US);
Joseph Mehr, North Wales, PA (US);
Mandayam Narasimhan, San Diego, CA (US);
Ajay Luthra, San Diego, CA (US);
Tom Du Breuil, Ivyland, PA (US);
Kun-Pei Chen, Ambler, PA (US);
Joseph Mehr, North Wales, PA (US);
Mandayam Narasimhan, San Diego, CA (US);
Ajay Luthra, San Diego, CA (US);
Tom du Breuil, Ivyland, PA (US);
General Instrument Corporation, Horsham, PA (US);
Abstract
Progressive I-slice refreshed MPEG data streams are transcoded to I-frame based MPEG data streams to enable trick play modes on a television appliance, such as pause, scan forward, scan backward, jump, or still frame displays for use, e.g., in film indexing (chapters). A progressive I-slice refreshed MPEG data streamhaving I-slices distributed over multiple P-frames is received by a television appliance. The P-frames are decoded at decoderto recover the I-slices which make up a complete I-frame. The recovered I-slices are assembled (e.g., by processor) into a complete I-frame. The complete I-frame is encoded at an encoder. A selected P-frame in the MPEG data stream is replaced with the encoded I-frame (e.g., via multiplexer) to provide an encoded I-frame based data stream. The I-frame based data stream is stored (e.g., in memory) for trick play mode use.