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:
Feb. 03, 2026

Filed:

Mar. 13, 2024
Applicants:

Beijing Youzhuju Network Technology Co., Ltd., Beijing, CN;

Lemon Inc., Grand Cayman, KY;

Inventors:

Junyan Guo, Beijing, CN;

Weifeng Dong, Beijing, CN;

Mingming Zhang, Beijing, CN;

Chuang Zhang, Los Angeles, CA (US);

Junmou Zhang, Los Angeles, CA (US);

Shan Lu, Los Angeles, CA (US);

Jian Wang, Beijing, CN;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 25/00 (2006.01); G01R 19/165 (2006.01); H03K 5/00 (2006.01);
U.S. Cl.
CPC ...
G01R 25/005 (2013.01); G01R 19/16576 (2013.01); H03K 5/00006 (2013.01); H03K 2005/00078 (2013.01);
Abstract

Embodiments of the present disclosure provide a device and a method for monitoring power supply voltage of an electronic circuit. The device comprising: a voltage regulator configured to process the power supply voltage to generate a predetermined voltage; a critical timing generation module powered by the predetermined voltage and configured to generate a critical timing signal based on an original clock signal and a delay control signal, the critical timing signal being alternately in a first level state and a second level state; a control signal adjustment module configured to adjust the delay control signal based on the critical timing signal, wherein in a case that the critical timing signal is in the first level state, the delay control signal is increased, and in a case that the critical timing signal is in the second level state, the delay control signal is decreased; and a power supply drop sensing module powered by the power supply voltage and configured to generate a drop indication signal based on the original clock signal and the delay control signal, the drop indication signal indicating whether the power supply voltage drops below the predetermined voltage.


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