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.

Date of Patent:
Oct. 09, 2007

Filed:

Mar. 09, 2006
Applicants:

Fadi Adel Hamdan, Raleigh, NC (US);

Jeffrey Herbert Fischer, Cary, NC (US);

William James Goodall, Iii, Cary, NC (US);

Inventors:

Fadi Adel Hamdan, Raleigh, NC (US);

Jeffrey Herbert Fischer, Cary, NC (US);

William James Goodall, III, Cary, NC (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 19/00 (2006.01); H03K 19/096 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multi-enabled clock gating circuit reduces clock enable setup time. In one example, the multi-enabled clock gating circuit comprises an OAI logic gate and a clock enable control circuit. The OAI logic gate is configured to generate a gated clock signal by inverting an input clock signal responsive to one of a timing-sensitive clock enable signal and a timing-insensitive clock enable signal being active. The clock enable control circuit is configured to prevent the OAI logic gate from receiving the timing-insensitive clock enable signal responsive to the timing-sensitive clock enable signal being active. In one or more embodiments, a multi-enabled clock gating circuit having reduced clock enable setup time may be included in an integrated circuit for implementing clock gating during different operating modes of the integrated circuit.


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