Method and apparatus for generating error correction data,...

Details Method and apparatus for generating error correction data,... Method and apparatus for generating error correction data,...

2008-01-15

2008-01-15

Britt, Cynthia (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S751000

Reexamination Certificate

active

07320099

ABSTRACT:
When error correction data, which is to be inserted into transmission data at specific intervals, is generated by calculating exclusive-OR of the transmission data, cumulative exclusive-OR of the transmission data is continuously calculated independent of the error correction data insertion intervals. Exclusive-OR between a calculation of the exclusive-OR at the time of the previous error correction data insertion and a calculation of the exclusive-OR at the time of the current error correction data insertion is calculated, thereby generating error correction data to be inserted at the present time. This provides efficient error correction data calculation.

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J. Rosenberg, et al., “An RTP Payload Format For Generic Forward Error Correction”, Dec. 1999, URL:http://www.ietf.org/rfc/rfc2733.txt.

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