One's complement pipelined checksum

Details One's complement pipelined checksum One's complement pipelined checksum

2006-03-28

2006-03-28

Ton, David (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Error/fault detection technique

C714S801000

Reexamination Certificate

active

07020836

ABSTRACT:
Received data is provided to a pipelined network in which a one's complement checksum is computed. The computed checksum is stored in a register. In further embodiments, at least one intermediate result in the pipelined network is stored in at least one corresponding register. Other embodiments include determining whether the digital data to be included in the checksum is odd or even based on a number of valid bytes, and selectively swapping bytes in the pipelined checksum network based on whether the digital data is determined to be odd or even. In some embodiments, the received digital data is masked to selectively choose received digital data to be included in the checksum.

REFERENCES:
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patent: 5663952 (1997-09-01), Gentry, Jr.
patent: 5826032 (1998-10-01), Finn et al.
patent: 6643821 (2003-11-01), Karim et al.
patent: 6654823 (2003-11-01), Soejima et al.
patent: 6704899 (2004-03-01), Dold et al.
patent: 6785753 (2004-08-01), Weber et al.

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