System and method for reducing power consumption in a wireless device
First Claim
1. A method for wireless transmission of audio data, comprising:
- receiving the audio data;
detecting whether voice activity has been present in the audio data over a set measurement duration;
transmitting frames of the audio data packets at a first frame duty cycle when the voice activity is detected in the audio data over a first set measurement duration;
transmitting the frames of null data packets at a second frame duty cycle when voice activity is not detected in the audio data over a second set measurement duration,wherein the first frame duty cycle is greater than the second frame duty cycle, andwherein the first set measurement duration and the second set measurement duration are measured over two, at least somewhat overlapping, durations of their respective elapsed time increments.
1 Assignment
0 Petitions
Accused Products
Abstract
A wireless transceiver is provided for transmitting and receiving audio data, comprising: a microphone configured to generate a digital audio signal that includes the audio data, based on a received sound sampled into digital format; a voice detection circuit configured to detect the presence of voice activity in the audio data, and to generate a voice detection signal indicating whether the voice activity is present in the audio data; a transceiver circuit configured to transmit the audio data over a wireless medium; and a control circuit configured to control transmission of the audio data over the wireless medium by the transceiver circuit, based on the voice detection signal. This allows saving of transmission power since no transmission is done during the silence periods. The digital audio signal is at least one of a pulse code modulated signal without compression, and a Bluetooth signal.
13 Citations
15 Claims
-
1. A method for wireless transmission of audio data, comprising:
-
receiving the audio data; detecting whether voice activity has been present in the audio data over a set measurement duration; transmitting frames of the audio data packets at a first frame duty cycle when the voice activity is detected in the audio data over a first set measurement duration; transmitting the frames of null data packets at a second frame duty cycle when voice activity is not detected in the audio data over a second set measurement duration, wherein the first frame duty cycle is greater than the second frame duty cycle, and wherein the first set measurement duration and the second set measurement duration are measured over two, at least somewhat overlapping, durations of their respective elapsed time increments. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A device for wireless transmission of audio data, comprising:
-
means for receiving the audio data; means for detecting whether voice activity has been present in the audio data over a first set measurement duration; means for transmitting frames of the audio data packets at a first frame duty cycle when the voice activity is detected in the audio data over the first set measurement duration; and means for transmitting the frames of null data packets at a second frame duty cycle when voice activity is not detected in the audio data over a second set measurement duration, wherein the first frame duty cycle is greater than the second frame duty cycle, and wherein the first set measurement duration and the second set measurement durations are measured over two, at least somewhat overlapping durations of their respective elapsed time increments. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
-
Specification