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. 18, 2017
Filed:
Aug. 05, 2015
GM Global Technology Operations Llc, Detroit, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A radio includes controls operatively disposed on a face panel. A 3.5 millimeter audio jack is disposed on or through the face panel. The audio jack has four contacts including a microphone contact. A microphone is disposed on or in the face panel to transduce sound received at the face panel. The microphone is electrically connected via a microphone output circuit to the microphone contact. A normally open switch has a switch actuator button disposed on the face panel. The switch is to connect the microphone output circuit to an electrical ground when the switch is closed. The audio jack is to electrically connect the radio to circuits of a smartphone including a smartphone left speaker output circuit, a smartphone right speaker output circuit, a smartphone ground circuit and a smartphone microphone input circuit.