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:
Apr. 22, 1986
Filed:
Nov. 09, 1983
Hee Wong, San Jose, CA (US);
Ramanatha V Balakrishnan, San Jose, CA (US);
Herb O Schneider, Santa Clara, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
A digital PLL technique to provide an effective sampling interval and resolution shorter than the driver clock period. A multi-phase driver clock provides a clock signals phase-offset from each other. One clock output signal is used as the driver clock to clock an input sampler. A pattern of bit samples before, nominally at, and after a predicted clock edge indicates whether a leading or lagging phase should be substituted for the present driver clock signal. The phase difference is substantially less than the period of the fastest clock presently available to generate satisfactory shaped pulses.