Telecommunications – Receiver or analog modulated signal frequency converter – Plural receivers
Reexamination Certificate
2006-05-30
2006-05-30
Orgad, Edan (Department: 2684)
Telecommunications
Receiver or analog modulated signal frequency converter
Plural receivers
C455S069000, C455S522000, C375S138000, C375S345000
Reexamination Certificate
active
07054600
ABSTRACT:
The application relates to transmission power control in transmission systems, in particular mobile radio systems. One object of the invention is to indicate a way of guaranteeing, compared with the state of the art, improved, in particular dynamic, control of transmission powers within predefinable emitted interference requirements with, in particular, increased efficiency and reduced power consumption. For this purpose, the invention provides for the filtering of an amplified transmission signal to be divided up between a narrower-band tunable pre-filter (4) and a broadband post-filter (10). To perform this operation, a signal-amplification circuit is proposed which comprises a tunable filter (4) which is connected downstream of a power amplifier (2).
REFERENCES:
patent: 3891926 (1975-06-01), Ishman et al.
patent: 5193223 (1993-03-01), Walczak et al.
patent: 5475873 (1995-12-01), Konishi
patent: 5574747 (1996-11-01), Lomp
patent: 6628635 (2003-09-01), Yano et al.
patent: 6721350 (2004-04-01), Lomp
patent: 6801565 (2004-10-01), Bottomley et al.
patent: 0 800 267 (1997-10-01), None
Bogner Norbert
Ritter Kai-Uwe
Schenkel Horst
Lucent Technologies - Inc.
Orgad Edan
LandOfFree
Channel-selective amplifier with tunable filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Channel-selective amplifier with tunable filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Channel-selective amplifier with tunable filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3647567