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:
Jul. 30, 2019

Filed:

Oct. 09, 2018
Applicant:

Integrated Device Technology, Inc., San Jose, CA (US);

Inventors:

Xinqing Chen, Shanghai, CN;

HaiQi Liu, Shanghai, CN;

Yuan Zhang, Shanghai, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/19 (2006.01); H03K 19/21 (2006.01); G01R 23/02 (2006.01);
U.S. Cl.
CPC ...
H03K 5/19 (2013.01); H03K 19/21 (2013.01);
Abstract

An apparatus includes a first circuit and a second circuit. The first circuit may be configured to generate a waveform in response to a frequency of an input clock signal and a threshold frequency. The second circuit may be configured to generate a control signal in response to a type of the waveform. The type of the waveform may comprise at least one of pulses and a steady state. The control signal may have a first state when the type of the waveform is the pulses and a second state when the type of the waveform is the steady state. A width of the pulses may be based on the threshold frequency.


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