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:
Jun. 08, 2010
Filed:
Jul. 11, 2006
An H. Nguyen, Fremont, CA (US);
Trung T. Nguyen, San Jose, CA (US);
Gaetano Bonfiglio, Fremont, CA (US);
Yin Shih, Saratoga, CA (US);
An H. Nguyen, Fremont, CA (US);
Trung T. Nguyen, San Jose, CA (US);
Gaetano Bonfiglio, Fremont, CA (US);
Yin Shih, Saratoga, CA (US);
Seagate Technology, Scotts Valley, CA (US);
Abstract
Video data in an encoded frame is reduced by adjusting orthogonal transform coefficients in the encoded frame during trick play operation such as fast forward or fast reverse. The orthogonal transform coefficients are adjusted by selecting essential orthogonal transform coefficients with high energy and non-essential orthogonal transform coefficients with low energy, maintaining or strengthening the essential orthogonal transform coefficients and attenuating or removing the non-essential orthogonal transform coefficients. In an MPEG bit stream, the encoded frame is an I-frame and the orthogonal transform coefficients are discrete cosine transform (DCT) coefficients.