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:
Jul. 28, 2020

Filed:

Sep. 27, 2019
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Huy M. Nguyen, San Jose, CA (US);

Cristian Gozzi, Santa Clara, CA (US);

Huabo Chen, Saratoga, CA (US);

Xuchen Zhang, Atlanta, GA (US);

Yu Chang, Los Altos, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/08 (2006.01); H04B 1/44 (2006.01); H04L 25/03 (2006.01); H04B 1/401 (2015.01);
U.S. Cl.
CPC ...
H04B 1/44 (2013.01); H04B 1/401 (2013.01); H04L 25/03878 (2013.01);
Abstract

A transceiver circuit having a T-coil circuit, inductive termination, and an equalization circuit is disclosed. The transceiver includes a transmitter having an output coupled to a first node, and a receiver having an input coupled to the first node. A T-coil circuit is coupled between the first node and an input/output (I/O) node. The T-coil circuit includes first and second inductors coupled in series between the first node and the I/O node, the inductors being coupled at a second node. A termination circuit is coupled between the first node and a reference node, the termination circuit including a third inductor. The transceiver circuit also includes an equalization circuit configured to convey an equalization signal to the second node.


Find Patent Forward Citations

Loading…