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:
Jun. 09, 2020

Filed:

Mar. 15, 2019
Applicant:

Jvc Kenwood Corporation, Yokohama-shi, Kanagawa, JP;

Inventors:

Koji Hirose, Yokohama, JP;

Toru Fujimoto, Yokohama, JP;

Assignee:

JVC KENWOOD CORPORATION, Yokohama-shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/152 (2006.01); H04L 7/00 (2006.01); H04B 1/28 (2006.01); H04L 27/16 (2006.01); H04L 27/14 (2006.01);
U.S. Cl.
CPC ...
H04L 27/152 (2013.01); H04B 1/28 (2013.01); H04L 7/0016 (2013.01); H04L 7/0087 (2013.01); H04L 27/16 (2013.01); H04L 27/142 (2013.01);
Abstract

A mixer is connected to a signal generator and an antenna and outputs a signal at an intermediate frequency. A PLL demodulator subjects the signal at the intermediate frequency from the mixer to PLL demodulation. An amplifier amplifies a signal from the PLL demodulator. A detector detects an amount of shift occurring in the PLL demodulator. A detector detects a gain of the amplifier. An FSK demodulator subjects a signal from the amplifier to FSK demodulation. An AFC unit detects a frequency offset in the signal from the amplifier and causes the signal generator to make a correction for the frequency offset detected.


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