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. 15, 2000
Filed:
May. 25, 1999
Applicant:
Inventors:
Holly A LaFerrara, Wappingers Falls, NY (US);
Nathaniel King, Bethel, CT (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G / ; H03G / ;
U.S. Cl.
CPC ...
330282 ; 330285 ; 330296 ;
Abstract
A RF integrated circuit including an amplifier having an input node and an output node; a switchable feedback path coupled between the output node and input node; and a switchable bias injector coupled to the input node. When the switchable feedback path is off and the switchable bias injector is on, the amplifier is in a high gain state. When the switchable feedback path is on and the switchable bias injector is off, the amplifier is in a low gain state. The circuit may be used in up converters and down converters for CDMA systems.