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.:
Date of Patent:
Aug. 04, 2020
Filed:
Nov. 06, 2019
Texas Instruments Incorporated, Dallas, TX (US);
Arlo James Aude, Lawrenceville, GA (US);
Eleazar Walter Kenyon, Tucker, GA (US);
Kumar Anurag Shrivastava, Bengaluru, IN;
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A signal detection circuit includes a signal input terminal, a rectifier circuit, a comparator circuit; a current source, and a comparator output terminal. The rectifier circuit is coupled to the signal input terminal and is configured to receive an input signal and generate a rectified signal based on the input signal. The comparator circuit is coupled to the rectifier circuit and is configured to receive a common mode signal and to generate a difference current based on a difference of the common mode signal and the rectified signal. The current source is coupled to the comparator circuit and is configured to generate a reference current. The comparator output terminal is configured to provide an output signal based on a difference of the reference current and the difference current.