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:
Aug. 15, 2000
Filed:
Dec. 23, 1997
Kadaba R Lakshmikumar, Basking Ridge, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A system for aligning the phase of signals generated by a selectable standby clock source which has a predetermined frequency with the phase of signals generated by a selected clock source which has the same frequency as signals generated by the standby clock source. The system comprises (1) a delay line having a plurality of delay elements which is configured to receive the signals generated by the standby clock source so that the output signal of each delay element is a delayed version of the standby clock source; (2) a decoder configured to receive each of the delayed versions of the signals generated by the standby clock signal source and generates a selection signal corresponding to a desired one of the delayed version signals that is aligned with signals generated by the selected clock source within a specifiable phase difference; and (3) a selector configured to receive the selection signal so as to select the desired delayed version signal as a new standby clock source.