Title:
通信用半導体集積回路
Document Type and Number:
Japanese Patent JP4294978
Kind Code:
B2
Abstract:
In a polar loop based radio-communications apparatus having a phase control loop for controlling the phase of a carrier outputted from an oscillator for transmission, and an amplitude control loop for controlling the amplitude of a transmission output signal outputted from a power amplification circuit, the phase control loop is first started while maintaining the amplitude control loop in an off state at the outset of transmission, and the amplitude control loop is started after stabilizing the phase control loop.
Inventors:
Noriyuki Kurakami
Patrick Worm
Robert Astor Henschau
Patrick Worm
Robert Astor Henschau
Application Number:
JP2003054329A
Publication Date:
July 15, 2009
Filing Date:
February 28, 2003
Export Citation:
Assignee:
Renesas Technology Corp.
Teepee com limited
Teepee com limited
International Classes:
H04B1/04; H03C3/00; H03F1/02; H03G3/30; H04L27/36
Domestic Patent References:
| JP4020288B2 | ||||
| JP2000138723A | ||||
| JP3276912A | ||||
| JP3285404A | ||||
| JP60041821A | ||||
| JP60059778B1 | ||||
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| JP9289425A | ||||
| JP7226678A | ||||
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Foreign References:
| WO2000035080A1 | ||||
| WO2002037666A1 |
Attorney, Agent or Firm:
Tomio Dainichi