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:
May. 04, 1999
Filed:
Nov. 13, 1997
Mito Sonohara, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An encoding apparatus for encoding a digital signal and a decoding apparatus for decoding the encoded signal. This encoding apparatus comprises a time series sample buffer for dividing an input signal into blocks, an orthogonal transform encoding section for transforming the signals every blocks into spectrum signals, and an entropy encoding section for implementing variable length encoding to all or a portion of the spectrum signals every blocks. At the entropy encoding section, there are provided an upper limit setting circuit for setting upper limit in the number of bits per each block of a signal encoded and outputted, and a bit number judging circuit for stopping outputting of a portion of spectrum signals in a block or blocks where the number of bits above the upper limit is required. The number of bits per each block is caused to have upper limit to stop recording or transmission of a portion of spectrum signals in a block or blocks where the number of bits above the upper limit is required. Thus, quantity of information caused to undergo encoding, recording or transmission and decoding can be reduced.