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:
Dec. 08, 1998
Filed:
Feb. 19, 1997
Applicant:
Inventors:
Fumiaki Henmi, Kanagawa, JP;
Yoshihiro Murakami, Kanagawa, JP;
Takashi Sasaya, Kanagawa, JP;
Takao Abe, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H04N / ;
U.S. Cl.
CPC ...
386109 ; 386123 ; 386 33 ;
Abstract
A digital video tape recorder with a standard image quality mode that minimizes recording time and a high image quality mode that maximizes image quality is realized using the same hardware for both modes. Compression circuitry is simplified and power requirements are reduced by band limiting an input video signal before the signal is compressed using a bit rate reduction encoder.