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. 04, 2011
Filed:
Oct. 08, 2008
Applicant:
Gang Zhang, San Diego, CA (US);
Inventor:
Gang Zhang, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 23/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
Design techniques for a low-power asynchronous counter. In an exemplary embodiment, the clock inputs and signal outputs of a plurality of flip-flops are serially concatenated to implement an asynchronous counting mechanism. The signal outputs of the plurality of flip-flops are sampled by successively delayed versions of a reference signal. Further design techniques for generating successively delayed versions of the reference signal are disclosed. In an exemplary embodiment, the asynchronous counting techniques may be utilized in a high-speed counter for a digital-phase locked loop (DPLL).