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:
Oct. 29, 2002
Filed:
Dec. 13, 1999
Applicant:
Inventor:
Vladimir A. Dvorkin, Castro Valley, CA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/02 ; H04B 7/02 ; H04B 1/034 ;
U.S. Cl.
CPC ...
H04B 1/02 ; H04B 7/02 ; H04B 1/034 ;
Abstract
A transmission portion of a front end for a portable communication device, in accordance with the present invention, includes a first transmission antenna coupled to a first output of a branching device for transmitting signals having a power below a threshold value. A power amplifier is coupled to a second output of the branching device. The power amplifier provides amplification to signals to be transmitted. A second transmission antenna is connected to an output of the power amplifier such that the power amplifier is switched off for transmission signals having a power below the threshold value and switched on to amplify transmission signals above the threshold value.