Patent · US Expired

Reduced overhead for clock testing in a level system scan design (LSSD) system

US4071902A · kind A · utility

19Cited by
2References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 30, 1976
Grant dateJan 31, 1978
Priority date
Expiry dateJun 30, 1996

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R31/318533
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

The disclosure relates to LSSD systems for use in digital computers and the like. More particularly, to an organization of logic in such systems to render the clock networks testable with minimal overhead. The advantages of the practice of the invention are particularly apparent and enhanced when the invention is employed in a Level Sensitive Scan Design (LSSD) System generally of the type disclosed in U.S. Pat. No. 3,783,254 and U.S. patent application Ser. No. 701,052, filed June 30, 1976.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.