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. 09, 2026
Filed:
Aug. 19, 2024
Panasonic Automotive Systems Co., Ltd., Kanagawa, JP;
Makoto Takemoto, Kanagawa, JP;
Susumu Yoneta, Kanagawa, JP;
Eiichi Kaminishi, Osaka, JP;
Yuki Shiraya, Kanagawa, JP;
Panasonic Automotive Systems Co., Ltd., Kanagawa, JP;
Abstract
A voice transmission system includes an input circuit receiving a signal from a differential output microphone, and including: an operational amplifier having an input side connected to a first output terminal and a second output terminal of the differential output microphone, and an output side connected to an analog/digital converter outputting, to a slave circuit connected to a master circuit, a voice signal obtained by analog/digital conversion of a signal output from the input circuit; a power supply connected to the input side and performing phantom power supply; and an output section connected between the input side and a slave circuit, outputting a first output voltage to the slave circuit when the differential output microphone is connected to the input circuit, and outputting a second output voltage different from the first output voltage to the slave circuit when the differential output microphone is not connected to the input circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile