Patent ID: 11943382
Assignee: MOTOROLA SOLUTIONS, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A converged portable radio, comprising:
an audio receiver having first and second audio processors, the first audio processor comprising an applications processors (AP) hosting a long term evolution (LTE) modem and generating LTE digital audio, and a baseband processor (BP) hosting a land mobile radio (LMR) modem and generating LMR digital audio;
a first codec having a first D/A for converting the LTE digital audio to LTE analog audio;
a second codec having a second D/A for converting the LMR digital audio to LMR analog audio;
a hardware switch system having an AP audio switch and a BP audio switch, wherein control of the hardware switch system is shared by the AP and BP;
a single speaker shared and independently driven by selectively accessing the first and second codecs via the hardware switch system;
wherein the AP audio switch is enabled/disabled in response to AP control logic, the AP control logic being controlled by a first GPIO output of the AP and a first GPIO output of the BP; and
the BP audio switch is enabled/disabled in response to BP control logic, the BP control logic being controlled by a second GPIO output of the AP and a second GPIO output of the BP.