logo

For the Inventor, By the Inventor

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 4176331 B1

PDFFull Text
Date of Patent:
Nov. 27, 1979

Filed:

Feb. 27, 1978

Network for simulating low-noise-temperature resistors

Applicant:
Inventors:

Robert L Forward, Oxnard, CA (US);

Gary D Thurmond, Calabasas, CA (US);

Assignee:

Hughes Aircraft Company, Culver City, CA (US);

Attorneys:

Dennison; Don O.

MacAllister; W. H.

Primary Examiner:

Paul L Gensler

Assistant Examiner:

Robert E Wise

Int. Cl.
CPC ...
H03H / ; H03H / ;
U.S. Cl.
CPC ...
333213 ; 333217 ; 330 / ;
Abstract

A class of two-terminal active networks which simulate low-noise-temperature resistors is disclosed. A single differential-input operational amplifier connected with a feedback resistor in an inverting amplifier configuration comprises the active element of the network. A resistive voltage divider feedback arrangement comprises the remainder of the circuit. Either positive or negative simulated resistors can be obtained with a wide range of equivalent resistance values and effective noise temperatures.

Find Patent Forward Citations

Forward, Robert. (1979). Network for simulating low-noise-temperature resistors (U.S. Patent No. 4176331). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4176331

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…