Transmitting apparatus and gain compensating method

Details Transmitting apparatus and gain compensating method Transmitting apparatus and gain compensating method

2006-01-31

2006-01-31

Bayard, Emmanuel (Department: 2634)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S146000, C370S342000

Reexamination Certificate

active

06993066

ABSTRACT:
A code multiplexer multiplexes spread data output from a spreader to generate code-multiplexed data. A reference data generator generates redundant data with constant power and with no information contained therein. A data adder adds the redundant data to the code-multiplexed data. A variable amplifier variably amplifies the transmit power of the code-multiplexed data and the redundant data to obtain transmit output data. A difference value calculator calculates a difference value between a target amplitude value and the amplitude of the amplified redundant data. A gain controller generates, based on the difference value, a gain control signal to control the gain of the variable amplifier. It is thereby possible to perform gain compensation with a small calculation amount and with high accuracy.

REFERENCES:
patent: 5116525 (1992-05-01), Merchant
patent: 5684833 (1997-11-01), Watanabe
patent: 5903523 (1999-05-01), Peck
patent: 5910182 (1999-06-01), Dent et al.
patent: 5987307 (1999-11-01), Buskirk et al.
patent: 6118987 (2000-09-01), Hiramatsu et al.
patent: 6272125 (2001-08-01), Nomura
patent: 6512917 (2003-01-01), Hiramatsu
patent: 6522639 (2003-02-01), Kitade et al.
patent: 6597922 (2003-07-01), Ling et al.
patent: 6651211 (2003-11-01), Abe et al.
patent: 6795488 (2004-09-01), Iwakiri
patent: 03154430 (1991-07-01), None
patent: 07015262 (1995-01-01), None
patent: 08116343 (1996-05-01), None
patent: 11027233 (1999-01-01), None
patent: 11308126 (1999-11-01), None
Kazuyuki Miya, et al., “A Base-Station Diversity Scheme for CDMA/TDD System”, technical Report of IEICE, RCS94-73, Sep. 17, 1994, pp. 25-30.

Affiliated with

Also associated with

Rating

Transmitting apparatus and gain compensating method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transmitting apparatus and gain compensating method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmitting apparatus and gain compensating method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3524854