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. 28, 1983
Filed:
Nov. 03, 1980
Hisashi Yamada, Yokohama, JP;
Tsutomu Sugawara, Yokosuka, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
With a muting device according to this invention, an input signal is supplied to a changeover switch, which in turn is connected to an output terminal through an amplifier and muting switching circuit. A terminal from which a switching operation changeover signal is sent forth is connected to a changeover switch, and also to a muting control circuit through a differentiation circuit. The output terminal of the muting control circuit is connected to a muting switching circuit. The differentiation circuit is formed of a series circuit of a resistor and a capacitor. A junction between the differentiation circuit and muting control circuit is connected to a constant input terminal through a resistor. The muting control circuit is provided with a single input terminal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile