System and method for reducing power consumption in a...

Details System and method for reducing power consumption in a... System and method for reducing power consumption in a...

2007-09-06

2009-11-03

Abraham, Esaw T (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S758000, C714S759000, C714S799000, C375S287000

Reexamination Certificate

active

07613981

ABSTRACT:
A system and method for reducing power consumption in a Low Density Parity-Check Code (LDPC) decoder includes a sleep mode checking module and a gating circuit. The sleep mode checking module checks whether a check node is in sleep mode. The check node is considered to be in sleep mode when the absolute value of the message going to each of the one or more bit nodes corresponding to the check node is greater than a threshold value. The gating circuit turns OFF a Check Node and Bit Node Update Unit (CNBNU) associated with the check node when the check node is in the sleep mode. Turning OFF a CNBNU stops the exchange of messages between the check node and its corresponding one or more bit nodes.

REFERENCES:
patent: 7107511 (2006-09-01), Shen et al.
patent: 7178080 (2007-02-01), Hocevar
patent: 7237171 (2007-06-01), Richardson
patent: 7263651 (2007-08-01), Xia et al.
patent: 7415079 (2008-08-01), Cameron et al.
patent: 7451386 (2008-11-01), Shen et al.
patent: 7453960 (2008-11-01), Wu et al.
patent: 7502987 (2009-03-01), Kyung et al.
patent: 7571375 (2009-08-01), Kim et al.
patent: 2005/0262424 (2005-11-01), Tran et al.
patent: 2007/0089024 (2007-04-01), Yu
patent: 2008/0077843 (2008-03-01), Cho et al.
R.Bresnan et al., Efficient LDPC Decoding, Irish signals and systems conference 2004, Belfast. Jun. 30-Jul. 2. 6 pages.

Affiliated with

Also associated with

Rating

System and method for reducing power consumption in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for reducing power consumption in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for reducing power consumption in a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4084525