The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 1990
Filed:
Jun. 06, 1988
Stefan Korner, Leinfelden, DE;
Klaus D Muller, Stuttgart, DE;
Peter Rudolph, Schoenaich, DE;
Dietmar Schmunkamp, Ehningen, DE;
Halim S Tandjung, Boblingen, DE;
International Business Machines Corp., Armonk, NY (US);
Abstract
A clock generator system is provided which includes several clock generators each containing a feedback shift register. A parity bit is calculated over the output of all shift registers and compared to an expected value. Additionally, a parity bit is calculated for each shift register, over the bits stored in the shift register, the number of ONE bits in a shift register being constant. A parity error at the output of the shift registers in combination with an error in the additional parity bit allows the correction of the erroneous clock pulse generated by the shift register in error.