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. 12, 2021

Filed:

Jul. 29, 2019
Applicant:

Beken Corporation, Shanghai, CN;

Inventors:

Jiazhou Liu, Shanghai, CN;

Cunliang Nai, Shanghai, CN;

Assignee:

Beken Corporation, Shanghai, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 19/07 (2006.01); G06K 19/077 (2006.01); H04L 5/00 (2006.01); H03H 7/01 (2006.01);
U.S. Cl.
CPC ...
G06K 19/0701 (2013.01); G06K 19/07773 (2013.01); H04L 5/0055 (2013.01); H03H 7/0138 (2013.01); H03H 7/0161 (2013.01);
Abstract

A new demodulator with consistent sensibility to signals received from different directions, low power consumption, and low manufacturing cost is provided. The demodulator may include a first demodulator branch and a second demodulator branch electrically connected in parallel, and a DC circuit to provide DC power to the demodulator. The DC circuit has a first diode and a second diode electrically connected in series between a DC power supply Vcc and the ground. The second demodulator branch can share a low pass filter and a DC blocking capacitor of the first demodulator branch for example, and can multiplex or reuse a bias current from the first demodulator branch.


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