Hybrid signature test method and apparatus

Details Hybrid signature test method and apparatus Hybrid signature test method and apparatus

G - Physics

06

F

354/225.1, 324/5

G06F 11/10 (2006.01) G01R 31/3193 (2006.01) G06F 11/277 (2006.01)

Patent

CA 1129004

ABSTRACT OF THE DISCLOSURE An apparatus and method for identifying faults in a digital logic circuit system combines the output of a feedback signature generator and synchronous transition counter to provide a unique signature which is sensitive both to bit pattern timing and bit pattern sequence. A plurality of output signals via signal lines of the circuit system which are produced in response to a preselected input signal pattern of a test signal generator is processed synchronously under control of a sequence controller through a feedback signature generator, such as a serial cyclic redundancy check network, and a synchronous bit transition counting network. A preselected portion of the outpout of the bit transition counting network is combined via a signal line with a preselected portion of the bits of the feedback signature generator to obtain a pseudo-random characteristic output bit pattern, or signature, which is unique to the circuit system under test. The fault detecting capability approaches one hundred percent with an embedded indication of the input test pattern duration as verification.

332883

Affiliated with

Also associated with

Rating

Hybrid signature test method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hybrid signature test method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hybrid signature test method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-754314