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:
Nov. 04, 1997
Filed:
Jun. 21, 1994
Applicant:
Inventors:
Jonathan James Stone, Reading, GB;
Rajan Bhandari, Basingstoke, GB;
Michael John Ludgate, Basingstoke, GB;
Terence Ralph Hurley, Newbury, GB;
Assignees:
Sony Corporation, Tokyo, JP;
Sony United Kingdom Limited, Weybridge, GB;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T / ;
U.S. Cl.
CPC ...
382239 ; 382248 ; 382251 ; 358430 ; 358433 ;
Abstract
A data compression apparatus is described which applies a dynamically variable degree of quantisation Q.sub.s to input data so as to control blocks of output data to have a predetermined maximum size. The dynamic control can be carried out on an inter-block basis or an intra-block basis. An overflow detector is provided for inserting an overflow indicator within blocks of compressed data to indicate when overflow has occurred.