Invention Grant
- Patent Title: Automatic volume control for land mobile radio
-
Application No.: US16664472Application Date: 2019-10-25
-
Publication No.: US11374546B2Publication Date: 2022-06-28
- Inventor: Christian K. Barker , Joshua Alan Johnson , Stephen Joseph Borer , Marshall Pommier Schiring
- Applicant: E.F. Johnson Company
- Applicant Address: US TX Irving
- Assignee: E.F. Johnson Company
- Current Assignee: E.F. Johnson Company
- Current Assignee Address: US TX Irving
- Agency: Foley & Lardner LLP
- Main IPC: H03G3/32
- IPC: H03G3/32 ; B64D45/00 ; H03G3/20 ; H03G3/00 ; H03G5/16 ; H03G3/24 ; H04B1/44 ; H04M1/60

Abstract:
The present disclosure provides a radio and method for automatically adjusting, in response to ambient noise, the volume setting of a radio. The radio comprises a microphone for receiving ambient audio and generating a microphone signal; a codec for receiving the microphone signal and generating a processor signal representative of the ambient audio; and processor circuitry operable to receive the processor signal, determine an ambient audio level in response to the processor signal, and determine an adjusted radio volume to generate a radio volume control signal, wherein the adjusted radio volume is determined by calculating a difference between a baseline volume level and ambient audio level and adding a current volume level setting, wherein the codec is also operable to receive the radio volume control signal and generate an output signal to adjust the radio volume setting to maintain a net difference between the adjusted radio volume and ambient audio.
Public/Granted literature
- US20200067474A1 AUTOMATIC VOLUME CONTROL FOR LAND MOBILE RADIO Public/Granted day:2020-02-27
Information query