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. 22, 2006
Filed:
Nov. 17, 2003
Erick M. Hirata, Torrance, CA (US);
Roger N. Kosaka, Torrance, CA (US);
Christopher B. Langit, Gardena, CA (US);
Lloyd F. Linder, Agoura Hills, CA (US);
Erick M. Hirata, Torrance, CA (US);
Roger N. Kosaka, Torrance, CA (US);
Christopher B. Langit, Gardena, CA (US);
Lloyd F. Linder, Agoura Hills, CA (US);
TelASIC Communication, Inc., El Segundo, CA (US);
Abstract
A digitally trimmed current source. The novel current source includes a first circuit for generating a current in response to an applied voltage and a resistance variable in response to a control signal, and a second circuit for supplying the control signal. The first circuit includes a resistive network comprised of a plurality of resistors; a plurality of switches, each switch coupled to one of the resistors and adapted to selectively switch the resistor in and out of the resistive network in response to the control signal; and a transistor adapted to apply a voltage across the resistive network to generate a current.