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. 20, 2000
Filed:
Oct. 28, 1998
Aristotele Hadjichristos, Apex, NC (US);
Scott R Justice, Durham, NC (US);
Ericsson Inc., Research Triangle Park, NC (US);
Abstract
A wide range single stage variable gain amplifier is provided for receiving an input signal and outputting an amplitude varied version of the received input signal. In its most basic form, the wide range single stage variable gain amplifier includes an input circuit receiving an input signal and developing an input current, a first control circuit receiving the input current, the first control circuit being selectively controllable to output an attenuated version of the received input current, a second control circuit directly connected to the first control circuit for receiving the attenuated input current therefrom, the second control circuit being selectively controllable to output a further attenuated version of the attenuated input current, and an output circuit receiving the further attenuated input current and developing an amplitude varied version of the received input signal.