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:
Nov. 08, 2016

Filed:

Sep. 26, 2014
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Gilbert H. Herbeck, Livermore, CA (US);

Gregoire J. Le Grand de Mercey, San Francisco, CA (US);

Yair R. Koren, Sunnyvale, CA (US);

Jung Wan Kim, San Jose, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01); H03L 7/081 (2006.01); H03K 5/01 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0818 (2013.01); H03K 5/01 (2013.01); H03L 7/0814 (2013.01);
Abstract

An apparatus is disclosed in which a clock signal may propagate through a delay circuit. The delay circuit may include a first and a second delay stage, in which each delay stage may be programmable for one of two delay times, depending on a value of a respective control signal to each delay stage. The delay circuit may also include circuitry which may change the value of the respective control signal from a first value to a second value. The circuitry may change the value of the respective control signal responsive to a determination that an output of the first stage and an output of the second stage are equal.


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