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:
Apr. 22, 1986
Filed:
Jul. 12, 1985
Applicant:
Inventor:
Hiroo Adachi, Saitama, JP;
Assignee:
Pioneer Electronic Corporation, Tokuo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F / ; H04H / ;
U.S. Cl.
CPC ...
330295 ; 3301 / ; 381 10 ; 381 24 ;
Abstract
A balance control circuit for controlling the difference in volume between right and left audio stereo signals. DC output voltages of an amplifier provided in a preceding stage to the balance volume control circuit are utilized as bias voltages for amplifiers provided in the rear stage of the balance control circuit, and the sliding contacts of variable resistors are grounded through a single capacitor, with the result that the manufacturing cost of the circuit is reduced.