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:
Dec. 13, 2022

Filed:

Jan. 21, 2021
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Mehrdad Heshami, Sunnyvale, CA (US);

Jafar Savoj, Sunnyvale, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/00 (2006.01); H03K 3/0233 (2006.01); H03K 5/1536 (2006.01); H03K 5/1532 (2006.01);
U.S. Cl.
CPC ...
H03K 3/0233 (2013.01); H03K 5/1532 (2013.01); H03K 5/1536 (2013.01);
Abstract

A low latency comparator circuit with a local clock circuit is disclosed. A comparator circuit configured to compare a first input signal to a second input signal. The comparator circuit includes at least one regenerative latch circuit having a first and second inputs configured to receive the first and second input signals, respectively. The comparator circuit further includes a clock circuit configured to generate and provide a clock signal exclusively to circuitry in the comparator circuit, including the at least one regenerative latch circuit. At least one output latch circuit coupled to the at least one regenerative latch circuit and configured to provide a first output signal indicative of a comparison of the first and second input signals.


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