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Patent Searching and Data


Title:
周波数方式
Document Type and Number:
Japanese Patent JP4195613
Kind Code:
B2
Abstract:
A system is disclosed for transmitting and receiving signals. The system includes the use of a frequency plan table a system for creating the frequency plan table. The frequency plan table relates carrier frequency channels to the operation of a synthesizer and a plurality of programmable frequency dividers in a locked loop. In a transmitter, a first programmable frequency divider accepts a reference signal and produces a comparison signal. A mixer accepts the reference signal and a transmission signal and produces a loop signal. A second programmable frequency divider accepts the loop signal and produces a loop signal having a divided intermediate frequency signal. A phase detector compares the comparison signal and the loop signal having a divided intermediate frequency and produces an output that controls a variable controlled oscillator. The variable controlled oscillator produces a modulated transmission signal.

Inventors:
Molner, Ario chassis.
Magorn, Raul
Domino, William Jay.
Zang, Andrew
Danguard, Molten
Application Number:
JP2002578676A
Publication Date:
December 10, 2008
Filing Date:
March 26, 2002
Export Citation:
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Assignee:
SKYWORKS SOLUTIONS,INC.
International Classes:
H04B1/40; H03D7/16; H03L7/185; H03L7/197
Domestic Patent References:
JP10512729A
JP2002517118A
JP54141509A
JP2000505608A
JP2000091945A
Foreign References:
WO2000076058A1
Attorney, Agent or Firm:
Hidekazu Miyoshi