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:
Mar. 21, 2000
Filed:
Jun. 02, 1998
William Robert Lee, Apex, NC (US);
Leland Duane Richardson, Apex, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A variable clock generator includes a clock multiplier that generates from a reference clock at least two clock signals which are out of phase with each other and a clock divider which receives a plurality of divider patterns and which receives at least two clock signals from the clock multiplier. The clock divider generates an output clock based on the divider patterns and the clock signals. In a particular embodiment, the clock divider includes a plurality of loadable linear feedback shift registers each having an output. An EXCLUSIVE OR gate that is responsive to the outputs of the linear feedback shift registers then EXCLUSIVE ORs the outputs of the linear feedback shift registers to produce the output clock. Preferably, the size of the linear feedback shift registers corresponds to the size of the divider patterns.