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:
Nov. 09, 1999
Filed:
Sep. 25, 1996
Applicant:
Inventors:
Assignee:
Hughes Electronics Corporation, El Segundo, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455127 ; 455126 ; 455115 ; 455123 ;
Abstract
In a base transceiver station in a cellular network, a digital signal processor generates a baseband input signal, which is converted to analog and transmitted by a transmitter at radio frequency. In accordance with the present invention, the baseband input signal is scaled by a selected factor from a predetermined table of scaling factors. The scaling factors are determined based on measured output power characteristics of the transmitter and provide frequency compensation caused by filtering ripple and/or attenuation compensation caused by uncertainties in internal attenuators.