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. 27, 1990
Filed:
Sep. 18, 1989
Applicant:
Inventor:
Hiroki Matsuoka, Tokyo, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338116 ;
Abstract
A signal level adjuster has a first variable resistor and a second variable resistor. The first variable resistor is inserted in a signal line, and the resistance thereof is variable by a motor. The second resistor is mechanically interlinked to a control knob on a control panel so that the resistance of the second resistor can be varied by the control knob. The motor is energized depending on a change in the resistance of the second variable resistor. The first level adjusting variable resistor may be positioned at any desired location so that and the signal transmission line is shortened.