X-CANCELING MULTIPLE-INPUT SIGNATURE REGISTER (MISR) FOR COMPACTING OUTPUT RESPONSES WITH UNKNOWNS
Patent №
US 7,925,947
Granted
2011-04-12
Filed 2008
Owner
SYNTEST TECHNOLOGIES, INC.
Lab
—
AI components
2
ml · hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
12007693
A method and apparatus for compacting test responses containing unknown (X) values in a scan-based integrated circuit using an X-canceling multiple-input signature register (MISR) to produce a known (non-X) signature. The known (non-X) signature is obtained by selectively exclusive-ORing (XORing) together combinations of MISR bits which are linearly dependent in terms of the unknown (X) values using a selective XOR network.
AI classification
Ownership
SYNTEST TECHNOLOGIES, INC.
assignment · 206610196
Assignors
TOUBA, NUR A., WANG, LAUNG-TERNG (L.-T.)
On an employer assignment, the assignors are typically the inventors.