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. 06, 1978
Filed:
Dec. 01, 1976
Applicant:
Inventors:
Tatsuo Ishiguro, Tokyo, JA;
Norio Suzuki, Tokyo, JA;
Assignee:
Nippon Electric Co., Ltd., Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358138 ; 358135 ; 325 / ;
Abstract
In a predictive encoder, a predictive error signal is multiplied in effect by a controllable factor before quantized into information codes. A variable length coder converts the information codes into variable length codes, which are temporarily stored in a buffer memory for transmission to a receiver at a predetermined bit rate. The controllable factor is controlled by buffer occupancy of the buffer memory. Normally, the factor may be 1/2. The factor is decreased when the buffer occupancy increases towards overflow.