Apparatus with redundant circuitry and method therefor

Details Apparatus with redundant circuitry and method therefor Apparatus with redundant circuitry and method therefor

2005-08-11

2009-08-18

Baderman, Scott T (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

07577869

ABSTRACT:
An apparatus with circuit redundancy includes a set of parallel arithmetic logic units (ALUs), a redundant parallel ALU, input data shifting logic that is coupled to the set of parallel ALUs and that is operatively coupled to the redundant parallel ALU. The input data shifting logic shifts input data for a defective ALU, in a first direction, to a neighboring ALU in the set. When the neighboring ALU is the last or end ALU in the set, the shifting logic continues to shift the input data for the end ALU that is not defective, to the redundant parallel ALU. The redundant parallel ALU then operates for the defective ALU. Output data shifting logic is coupled to an output of the parallel redundant ALU and all other ALU outputs to shift the output data in a second and opposite direction than the input shifting logic, to realign output of data for continued processing, including for storage or for further processing by other circuitry.

REFERENCES:
patent: 4546428 (1985-10-01), Morton
patent: 5253308 (1993-10-01), Johnson
patent: 5748872 (1998-05-01), Norman
patent: 5867723 (1999-02-01), Chin et al.
patent: 6021511 (2000-02-01), Nakano
patent: 6073185 (2000-06-01), Meeker
patent: 6785841 (2004-08-01), Akrout et al.
patent: 6792560 (2004-09-01), Francis et al.
patent: 7124318 (2006-10-01), Luick
patent: 2002/0174318 (2002-11-01), Stuttard et al.
patent: 2003/0179631 (2003-09-01), Koob et al.

Affiliated with

Also associated with

Rating

Apparatus with redundant circuitry and method therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus with redundant circuitry and method therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus with redundant circuitry and method therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4076424