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:
Nov. 19, 2024

Filed:

Jan. 18, 2023
Applicant:

Renesas Electronics America Inc., Milpitas, CA (US);

Inventors:

Tetsuo Sato, San Jose, CA (US);

Jiang Chen, Cupertino, CA (US);

Qiu Sha, San Jose, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/06 (2006.01); H01L 23/66 (2006.01); H04L 25/02 (2006.01);
U.S. Cl.
CPC ...
H04L 27/06 (2013.01); H01L 23/66 (2013.01); H04L 25/0266 (2013.01); H01L 2223/6611 (2013.01);
Abstract

Systems, devices, and methods for isolating digital signals are described. A carrier signal can be modulated using a first signal to generate a first modulated signal. The carrier signal and the first modulated signal can be transmitted through a forward path in an isolation barrier, where transmitting the carrier signal through the isolation barrier can transform the carrier signal into a delayed carrier signal. The first modulated signal can be demodulated to recover the first signal. The delayed carrier signal can be modulated using a second signal to generate a second modulated signal. The delayed carrier signal and the second modulated signal can be transmitted through a return path in the isolation barrier, where the return path and the forward path has opposite directions.


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