Granted Patent B2

US 8,712,362 · App. 12/509,939 · Granted Apr 29, 2014

Abstract

Claims (29)

1. A method of extending battery life of a wireless microphone unit, the method comprising:

muting the wireless microphone unit responsive to a mute signal from a base station unit;

transmitting, by the wireless microphone unit, compressed muted audio data, wherein the compressed muted audio data is compressed via a first compression scheme;

determining, by the wireless microphone unit, whether an unmute signal has been received from the base station unit;

responsive to a determination that the unmute signal has been received, unmuting the wireless microphone unit;

discontinuing transmission of the compressed muted audio data;

transmitting compressed audio data via a second compression scheme; and

wherein the first transmitting step causes the wireless microphone unit to consume less power per unit of transmission time than the second transmitting step.

2. The method of claim 1 , wherein:

the first compression scheme comprises run-length encoding; and

the second compression scheme involves no compression.

3. The method of claim 1 , wherein, responsive to the muting step, the muted audio data defaults to zero.

4. The method of claim 1 , wherein the muting step comprises muting the wireless microphone unit utilizing analog mute circuitry.

5. The method of claim 1 , wherein the muting step comprises muting the wireless microphone unit utilizing digital mute circuitry.

6. The method of claim 1 , wherein, responsive to the muting step, audio data representing silence is detected by a transmit/receive unit of the wireless microphone unit.

7. The method according to claim 1 , wherein the second compression scheme comprises at least one of Digital Speech Standard (DSS), Advanced Audio Coding (AAC), and MP3.

8. The method of claim 1 , wherein the muting step comprises operably disconnecting a sound pickup device of the wireless microphone unit from a transmit/receive unit of the wireless microphone unit.

9. The method of claim 8 , wherein the sound pickup device comprises a microphone.

10. The method of claim 1 , wherein the steps are performed in the order listed.

11. An article of manufacture for extending battery life of a wireless microphone unit, the article of manufacture comprising:

at least one non-transitory computer readable medium;

processor instructions contained on the at least one non-transitory computer readable medium, the processor instructions configured to be readable from the at least one non-transitory computer readable medium by at least one processor and thereby cause the at least one processor to operate as to perform the following steps:

muting the wireless microphone unit responsive to a mute signal from a base station unit;

transmitting, by the wireless microphone unit, compressed muted audio data, wherein the compressed muted audio data is compressed via a first compression scheme;

determining, by the wireless microphone unit, whether an unmute signal has been received from the base station unit;

responsive to a determination that the unmute signal has been received, unmuting the wireless microphone unit;

discontinuing transmission of the compressed muted audio data;

transmitting compressed audio data via a second compression scheme; and

wherein the first transmitting step causes the wireless microphone unit to consume less power per unit of transmission time than the second transmitting step.

Assignments (8)