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:
Jun. 21, 2011
Filed:
Dec. 02, 2008
Bun Kobayashi, Cypress, CA (US);
Steven W. Schell, Torrance, CA (US);
Pei-ming Daniel Chow, Los Angeles, CA (US);
Mau-chung Frank Chang, Los Angeles, CA (US);
Bun Kobayashi, Cypress, CA (US);
Steven W. Schell, Torrance, CA (US);
Pei-Ming Daniel Chow, Los Angeles, CA (US);
Mau-Chung Frank Chang, Los Angeles, CA (US);
Microchip Technology Incorporated, Chandler, AZ (US);
Abstract
An attenuator system comprises an attenuator and a control circuit for controlling the attenuation of the attenuator. In one embodiment, the attenuator comprises two diodes or two diode connected transistors, and the control circuit comprises two transistors as the only active devices. In another embodiment, the control circuit comprises another transistor in a shut down circuit.