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 10536222 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 14, 2020

Filed:

Nov. 27, 2018
Applicant:

Elenion Technologies, Llc, New York, NY (US);

Inventors:

Bernd-Harald Horst Jurgen Rohde, Munich, DE;

Richard C. Younce, Naperville, IL (US);

Assignee:

Elenion Technologies, LLC, New York, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/64 (2013.01); H04B 10/61 (2013.01);
U.S. Cl.
CPC ...
H04B 10/64 (2013.01); H04B 10/612 (2013.01); H04B 10/614 (2013.01);
Abstract

An electrical circuit and method for de-modulation and carrier recovery of PSK modulated carrier signals in analog domain are described. A portion of the received PSK-modulated carrier signal is passed through a signal multiplication circuit to obtain a frequency-multiplied carrier that is absent of the PSK modulation, which is then passed through a frequency dividing circuit to obtain a reference carrier at the received carrier frequency. The reference signal is then mixed with the received PSK-modulated carrier signal to obtain a de-modulated baseband signal. The method may be used in heterodyne receivers of optical BPSK and QPSK signals.


Find Patent Forward Citations

Rohde, Bernd-Harald Horst Jurgen. (2020). Phase demodulation method and circuit (U.S. Patent No. 10536222). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10536222

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