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.

Patent No.:

US 9225567 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 29, 2015

Filed:

Feb. 16, 2015
Applicant:

Panasonic Corporation, Osaka, JP;

Inventor:

Masahiko Sagisaka, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D 3/00 (2006.01); H04L 27/144 (2006.01);
U.S. Cl.
CPC ...
H04L 27/144 (2013.01);
Abstract

A receiver simultaneously receives a plurality of signals on a plurality of channels, which have been modulated using frequency shift keying (FSK). A calculation range controller detects a Mark frequency and a Space frequency for each channel, determines for each channel a frequency range for Fourier transform calculation of the plurality of receiving signals, based on the detected Mark frequency and the detected Space frequency and indicates the frequency range to a frequency component detector. The frequency component detector performs Fourier transformation on the determined frequency range for each channel and detects, for each channel, frequency components (FFT signals) of the plurality of receiving signals respectively. The channel shifter allocates the FFT signals output from the frequency component detector to data of channelto channel N and outputs the signals to respective demodulators.


Find Patent Forward Citations

Sagisaka, Masahiko. (2015). Receiving apparatus and demodulation method (U.S. Patent No. 9225567). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9225567

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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