Title:
FM変調を用いたポーラ変調装置および方法
Document Type and Number:
Japanese Patent JP4584336
Kind Code:
B2
Abstract:
The present invention relates to a polar modulation apparatus and method, in which an in-phase and a quadrature-phase signal are processed in the analog domain to generate an analog signal corresponding to a derivative of a phase component of said polar-modulated signal. The analog signal is then input to a control input of a controlled oscillator (40). As an example, the processing may be based on a differentiate-and-multiply algorithm in the analog domain. Thereby, phase and envelope signals are generated in the analog domain and bandwidth enlargement due to the processing of the polar signals and corresponding aliasing can be prevented to obtain a highly accurate polar-modulated output signal.
Inventors:
Paul, Matteissen
Dominix, M. Way Lehnarts
Dominix, M. Way Lehnarts
Application Number:
JP2008536187A
Publication Date:
November 17, 2010
Filing Date:
October 18, 2006
Export Citation:
Assignee:
NXP B.V.
International Classes:
H03C5/00; H03F1/02; H03F1/32; H03F3/24; H03L7/08; H03L7/10; H04B1/04; H04L27/12
Domestic Patent References:
| JP10304000A | ||||
| JP2000286915A | ||||
| JP2004260509A | ||||
| JP2002530992A | ||||
| JP2000115264A | ||||
| JP5175743A | ||||
| JP2005295536A | ||||
| JP2003500931A | ||||
| JP2004088803A |
Attorney, Agent or Firm:
Kenji Yoshitake
Hidetoshi Tachibana
Takeshi Sekine
Takahashi
Hidetoshi Tachibana
Takeshi Sekine
Takahashi