Telecommunications – Transmitter
Reexamination Certificate
2006-09-05
2006-09-05
Moe, Aung (Department: 2618)
Telecommunications
Transmitter
C455S115100
Reexamination Certificate
active
07103323
ABSTRACT:
An apparatus for transmitting an RF signal in a mobile communication terminal and a method for controlling the same. The apparatus is insensitive to temperature variation simultaneously with satisfying a specification of a mobile communication system, and reduces noise simultaneously with preventing output power from bounding. The apparatus includes a step-up converter for converting a signal to be transmitted into a signal of a transmission band; a reverse variable attenuator for performing high attenuation or low attenuation about an output signal of the step-up converter according to an attenuation control value; a transmission power processor for raising power of an output signal of the reverse variable attenuator to transmission power; and a controller for generating the attenuation control value used for performing high attenuation if the signal to be transmitted requires a low output power level, whereas performing low attenuation if the signal to be transmitted requires a high output power level.
REFERENCES:
patent: 6853690 (2005-02-01), Sorrells et al.
patent: 2004/0192232 (2004-09-01), Szopko et al.
patent: 2005/0048935 (2005-03-01), Sander et al.
Dilworth & Barrese LLP
Moe Aung
Samsung Electronics Co,. Ltd.
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