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:
Feb. 17, 1998
Filed:
Aug. 04, 1995
Applicant:
Inventors:
Ayataka Nishio, Kanagawa, JP;
Yasuhiro Ogura, Tokyo, JP;
Gen Ichimura, Tokyo, JP;
Makoto Akune, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H03M / ;
U.S. Cl.
CPC ...
341143 ; 341144 ; 358400 ;
Abstract
An audio signal recording device having an input terminal, a modulator for modulating an input signal, a detecting circuit for detecting whether an input signal maintains a fixed value for a predetermined period of time, a signal generator for generating an idling signal, a delay circuit for delaying a modulated input signal and a switch for alternately inputting either the idling signal or modulated input signal to a recording circuit.