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:
Dec. 23, 2003
Filed:
Mar. 29, 2000
Christopher Peter Wieck, San Diego, CA (US);
Other;
Abstract
A first amplifier amplifies a radio frequency signal into a first stage signal, a detector produces a bypass signal based on the environment in which the receiver is operating. A switch provides the first stage signal or the first stage signal filtered by a radio frequency filter based on the bypass signal is not asserted. Optionally, the detector also produces a bias control signal and bias generators set the bias levels of the amplifiers according to the bias control signal. The invention increases linear range RF amplification stages. Power consumption is reduced by reducing the amplification (and optionally the bias levels) used under typical conditions. The invention is advantageous for applications where power is at a premium and the receiver, or at least its front end, operates while the device is in standby mode. Such applications include mobile, portable and hand held pagers and wireless telephones and Internet connections.