Method of ramping up output level of power amplifier of radio communication system, communication semiconductor integrated circuit, and radio communication system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 29, 2008
Grant Date -
Mar 24, 2005
app pub date -
Jul 29, 2004
filing date -
Jul 31, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a radio communication system having a phase control loop for phase modulation and an amplitude control loop for amplitude modulation and being capable of time divisional transmission and reception under a predetermined time management, when transmission in a first mode is switched to transmission in a second mode or when transmission in the second mode is switched to transmission in the first mode, the output level of the power amplifier is lowered once to a predetermined level higher than the level when transmission related circuits are activated, and thereafter the output level of the power amplifier is again ramped after the settings have been changed but without starting of a transmission oscillator, establishing of the phase control loop and the amplitude control loop.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully