Pulse or digital communications – Transmitters – Antinoise or distortion
Reexamination Certificate
2005-04-25
2008-08-26
Bocure, Tesfaldet (Department: 2611)
Pulse or digital communications
Transmitters
Antinoise or distortion
Reexamination Certificate
active
07418057
ABSTRACT:
To shorten the time required for writing of the distortion compensation coefficient and to reduce amount of data of the distortion compensation coefficient stored as the initial value of the distortion compensation apparatus. The distortion compensation apparatus for amplifying the transmitting signal after implementing the distortion compensation process comprises a coefficient memory for storing corresponding to each address the coefficient used for the distortion compensation process, an initial value memory for storing the initial value of the coefficient, and a controller for write control corresponding to n (n: natural number equal to 2 or larger) addresses of the coefficient read from the initial value memory corresponding to one address.
REFERENCES:
patent: 5404378 (1995-04-01), Kimura
patent: 5903823 (1999-05-01), Moriyama et al.
patent: 6141390 (2000-10-01), Cova
patent: 06-077767 (1994-03-01), None
patent: 2001-267850 (2001-09-01), None
Funyu Yasuhito
Ohba Takeshi
Shako Hideharu
Bocure Tesfaldet
Fujitsu Limited
Hanify & King P.C.
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