Adaptive error protection for wireless communications
AssigneeDSP Group Ltd.
InventorsEli Fogel, Mark Raifel
Life of this patent
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Abstract
A method of error protection for wireless communication of packets of sampled digitized audio data according to a selected communication protocol, comprising: identifying the least significant bits of each sample of audio data encoded in the packets based on the communication protocol used; selectively replacing one or more of the least significant bits with values that enable performing error correction on the rest of the data encoded in the packet; transmitting the altered packet from a transmitting party to a receiving party; using the replaced bits to detect or correct errors in the transmitted packet; wherein said communication protocol uses an ADPCM encoding scheme.
Claims21
A method of error protection for wireless communication of packets of sampled digitized audio data according to a selected communication protocol, comprising:
- identifying the least significant bits of each sample of audio data encoded in the packets based on the communication protocol used;
- selectively replacing one or more of the least significant bits with values that enable performing error correction on the rest of the data encoded in the packet;
- transmitting the altered packet from a transmitting party to a receiving party;
- using the replaced bits to detect or correct errors in the transmitted packet;
- and
- wherein said communication protocol uses an ADPCM encoding scheme.
A system for wireless communication, comprising:
- a first wireless device;
- a second wireless device that is adapted to communicate with said first wireless device by transmitting and receiving packets with digital audio data samples using a specific communication protocol;
- an enhanced error correction application installed in said second wireless device and said second wireless device, wherein said enhanced error correction application is adapted to:
- identify the least significant bits of each sample of audio data encoded in the packets based on the communication protocol used;
- replace one or more of the least significant bits with values that enable performing error correction on the rest of the data encoded in the packet;
- transmit the altered packet;
- use the replaced bits to detect and correct errors in the transmitted packet;
- and wherein said communication protocol uses an ADPCM encoding scheme.
Dependencies are inferred from the claim text.