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. 23, 2021

Filed:

Dec. 17, 2020
Applicant:

Omnivision Technologies, Inc., Santa Clara, CA (US);

Inventors:

Li Yang, Fremont, CA (US);

Charles Qingle Wu, Palo Alto, CA (US);

Nan Liu, San Jose, CA (US);

Assignee:

OmniVision Technologies, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 25/02 (2006.01); H04L 25/08 (2006.01);
U.S. Cl.
CPC ...
H04L 25/0278 (2013.01); H04L 25/0274 (2013.01); H04L 25/0276 (2013.01); H04L 25/085 (2013.01);
Abstract

A digital differential line receiver includes a differential signal to single-ended conversion amplifier coupled to receive a data line and data-complement line of a differential signal; a first termination resistor coupled to the data line of the differential signal; a second termination resistor coupled to the data-complement line of the differential signal; a first impedance-adjusting transistor coupled between the first termination resistor and a common mode line; a second impedance-adjusting transistor coupled between the second termination resistor and the common mode line; a control-voltage generator coupled to sense the common mode line and provide a control voltage, the control voltage generator configured to adjust the control voltage to a voltage level such that a combined impedance of the first termination resistor, the first impedance-adjusting transistor, the second termination resistor, and the second impedance-adjusting transistor matches a specified impedance.


Find Patent Forward Citations

Loading…