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:
Jan. 29, 2008
Filed:
Jul. 29, 2004
Noriyuki Kurakami, Maebashi, JP;
Kazuhiko Hikasa, Hamura, JP;
Ryoichi Takano, Takasaki, JP;
Patrick Wurm, Royston, GB;
Noriyuki Kurakami, Maebashi, JP;
Kazuhiko Hikasa, Hamura, JP;
Ryoichi Takano, Takasaki, JP;
Patrick Wurm, Royston, GB;
Renesas Technology Corporation, Tokyo, JP;
TTPCOM Limited, Hertfordshire, GB;
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.