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:
Jul. 26, 1994
Filed:
Oct. 14, 1992
Applicant:
Inventors:
Sharad Singhal, Mendham, NJ (US);
Hiroshi Watanabe, Kanagawa, JP;
Assignees:
Bell Communications Research, Inc., Livingston, NJ (US);
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348405 ;
Abstract
A motion compensating coder which includes a control section for setting quantizer step size accounts for both the buffer occupancy and the texture of the image being coded. The coding control method, using well-accepted assumptions relating to the human visual sensitivity to quantization distortion in an image, employs a recursive strategy that maintains a coding rate which closely approximates the number of target bits.