Apparatus and method for processing data using COPSK of...

Pulse or digital communications – Transmitters – Angle modulation

Reexamination Certificate

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C375S146000

Reexamination Certificate

active

07085331

ABSTRACT:
An apparatus and method for processing data using the complex quadrature phase shift keying (CQPSK) is disclosed. The present invention includes plurality of multiplying units for multiplying a long pseudo noise (PN) code with an in-phase pseudo noise and quadrature pseudo noise, and a results of multiplying with a pilot channel, a dedicated control channel, a voice channel, a high-speed data transmission channel, a result multiplied with channels with gain, filtering units for eliminating noise, subtracting and adding units for calculating final result, and in-phase/quadrature channel outputting unit for outputting I-channel/Q-channel. The present invention can improve data processing speed of a radio channel, increase capacity of data processing in radio communication and also can be applicable to various kinds of radio communication devices transceiving voice, media contents and high-speed data at a same time.

REFERENCES:
patent: 6724740 (2004-04-01), Choi et al.
patent: 1 005 202 (2000-05-01), None
patent: 2 300 545 (1996-11-01), None
patent: 2 336 976 (1999-11-01), None
patent: 2001-156679 (2001-06-01), None
patent: WO 01/41318 (2001-06-01), None
Japanese Office Action dated Feb. 10, 2006; JP Patent Application No. 2002-169135.
European Search Report dated Apr. 3, 2006; EP Patent Application No. 02254026.4.

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