Correlator

Details Correlator Correlator

2007-09-18

2008-12-30

Bayard, Emmanuel (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S152000

Reexamination Certificate

active

07471719

ABSTRACT:
The present invention relates to a device for generating at least one code phase (Ce, Cp, Ci) the device comprising a shift register (702) comprising N outputs and to which a code sequence (Cin) to be phased is applied, and at least one logic branch (722, 723, 724) controlled by at least one combination control signal on the basis of which the logic branch combines the code phase from i outputs of the shift register (702). N is an integer greater than 2 and i is an integer between 2 and N. Said at least one logic branch preferably comprises i two-input selectors (901to909, 911to919, 921to929), to the first input of each of which is connected one input of the shift register (702) and to the second input is connected one combination control signal (ec0to ec8, pc0to pc8, lc0to lc8), and an i-input combiner (910, 920, 930), to whose outputs are connected the outputs of said i selectors and from whose output said code phase is obtained.

REFERENCES:
patent: 4365338 (1982-12-01), McRae et al.
patent: 4707839 (1987-11-01), Andren et al.
patent: 4833479 (1989-05-01), Carlson
patent: 5377225 (1994-12-01), Davis
patent: 5512894 (1996-04-01), Ikeyama
patent: 5640416 (1997-06-01), Chalmers
patent: 5761239 (1998-06-01), Gold et al.
patent: 5903595 (1999-05-01), Suzuki
patent: 5920589 (1999-07-01), Rouquette et al.
patent: 5933447 (1999-08-01), Tran et al.
patent: 5999561 (1999-12-01), Naden et al.
patent: 6094450 (2000-07-01), Shockey
patent: 6208685 (2001-03-01), Yamazaki
patent: 6212219 (2001-04-01), Shou et al.
patent: 6275520 (2001-08-01), Nakamura et al.
patent: 6289041 (2001-09-01), Krasner
patent: 6445714 (2002-09-01), d'Anjou et al.
patent: 6463561 (2002-10-01), Bhawmik et al.
patent: 6496474 (2002-12-01), Nagatani et al.
patent: 6526322 (2003-02-01), Peng et al.
patent: 6650689 (2003-11-01), Oishi et al.
patent: 2005/0094604 (2005-05-01), Ozluturk et al.
patent: 0772305 (1997-05-01), None
patent: 0855796 (1998-07-01), None
patent: 0874471 (1998-10-01), None
patent: 0886386 (1998-12-01), None
patent: 0924532 (1999-06-01), None
patent: 0924871 (1999-06-01), None
patent: 0944178 (1999-09-01), None
patent: 0772305 (2001-12-01), None
patent: 0855796 (2002-07-01), None
patent: 0886386 (2002-10-01), None
patent: 2315647 (1998-02-01), None
patent: 2315647 (1998-02-01), None
European Search Report dated Feb. 15, 2001.
Bert Gyselinckx et al., “A 4*2.5Mchip/s Direct Sequence Spread Spectrum Receiver with Digital IF and Integrated ARM6 Core.” In:IEEE 1997 Custom Integrated Circuites Conference, pp. 461-464.

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