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. 20, 2000
Filed:
Nov. 03, 1997
Applicant:
Inventor:
Kazuhito Takai, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
710 69 ; 710 20 ; 710 21 ; 710131 ; 711148 ;
Abstract
To reduce access frequency to a CPU for recording/reproducing digital audio data, a control system of FIFO memories of the invention applied to an sound codec apparatus comprises means (2, 4, 7, 9 and 10) for controlling a first and a second FIFO memory (3 and 8) to store recording data sequentially and to output stored recording data sequentially when the apparatus is used exclusively for recording; and controlling the first and the second FIFO memory to store the reproducing data sequentially and to output the stored reproducing data sequentially when the apparatus is used exclusively for reproducing.