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:
Jan. 22, 2019

Filed:

Jul. 22, 2016
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Victor Zyuban, Sunnyvale, CA (US);

Norman Rohrer, San Jose, CA (US);

Nimish Kabe, Sunnyvale, CA (US);

Neela Lohith Penmetsa, Cupertino, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 5/05 (2006.01); H03K 19/21 (2006.01); H03K 3/037 (2006.01);
U.S. Cl.
CPC ...
H03K 5/05 (2013.01); H03K 3/037 (2013.01); H03K 19/21 (2013.01);
Abstract

Techniques are disclosed relating to dual-edge triggered (DET) clock gater circuitry. In some embodiments, an apparatus includes a first series of DET clock gater circuits configured, when the DET clock gater circuits are not gating an input clock signal, to provide an output clock signal to sequential circuitry. In some embodiments, ones of the DET clock gater circuits are controlled by respective control signals and are configured to maintain a mode indicator indicating whether or not the DET clock gater circuit is inverting the polarity of its input clock when generating an output clock. In some embodiments, the apparatus also includes a first adjustable delay circuit configured to adjust delay imposed on the output clock signal from the first series of DET clock gater circuits based on the number of DET clock gater circuits in the series that are in a particular mode.


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