Receiver employing correlation technique for canceling cross-tal

Details Receiver employing correlation technique for canceling cross-tal Receiver employing correlation technique for canceling cross-tal

1991-03-21

1992-10-20

Chin, Stephen

Pulse or digital communications

Spread spectrum

Direct sequence

455295, H04B 110

Patent

active

051576970

ABSTRACT:
A receiver suitable for use in a radio-telephone system for recovering data from encoded, quadrature-modulated communication signals employs a feedback arrangement for suppressing cross-talk between the receiver's in-phase and quadrature channels to improve data recovery rates during decoding. The receiver converts in-coming analog communication signals into in-phase and quadrature digital signals, which may have cross-talk components. The receiver has an attenuator for subtracting feedback signals from the in-phase and quadrature digital signals to produce cross-talk-attenuated in-phase and quadrature digital signals, a decoder for decoding the cross-talk-attenuated in-phase and quadrature digital signals to generate first and second data output signals, and the above-mentioned feedback arrangement, which preferably employs a recoder and cross-correlation techniques, for generating the feedback signals.

REFERENCES:
patent: 3662117 (1972-05-01), Bhatt et al.
patent: 3735266 (1973-05-01), Amitay
patent: 3786193 (1974-01-01), Tsurushima
patent: 3947645 (1976-03-01), Mizukami et al.
patent: 4053716 (1977-10-01), Enomoto
patent: 4060696 (1977-11-01), Iwahara et al.
patent: 4118599 (1978-10-01), Iwahara et al.
patent: 4119798 (1978-10-01), Iwahara et al.
patent: 4139738 (1979-02-01), Ienaka et al.
patent: 4159397 (1979-06-01), Iwahara et al.
patent: 4192969 (1980-03-01), Iwahara
patent: 4199658 (1980-04-01), Iwahara
patent: 4204091 (1980-05-01), Ishigaki et al.
patent: 4211978 (1980-07-01), Takahashi
patent: 4220923 (1980-09-01), Pelchat et al.
patent: 4239937 (1980-12-01), Kampmann
patent: 4264908 (1981-04-01), Pelchat et al.
patent: 4264919 (1981-04-01), Abbott
patent: 4306307 (1981-12-01), Levy et al.
patent: 4308550 (1981-12-01), Melwisch et al.
patent: 4374432 (1983-02-01), Kenner et al.
patent: 4390746 (1983-06-01), Higashiyama et al.
patent: 4479258 (1984-10-01), Namili
patent: 4484234 (1984-11-01), Kimura
patent: 4484336 (1984-11-01), Catchpole et al.
patent: 4495528 (1985-01-01), Sasamura et al.
patent: 4542425 (1985-09-01), de Niet
patent: 4554595 (1985-11-01), Tanaka et al.
patent: 4571639 (1986-02-01), Nagashima
patent: 4575862 (1986-03-01), Tahara et al.
patent: 4577330 (1986-03-01), Kavehrad
patent: 4602227 (1986-07-01), Clark
patent: 4610010 (1986-09-01), Claesen et al.
patent: 4649505 (1987-03-01), Zinster, Jr. et al.
patent: 4661842 (1987-04-01), Ishige et al.
patent: 4695972 (1987-09-01), McKeowa
patent: 4715064 (1987-12-01), Claessen
patent: 4893342 (1990-01-01), Cooper et al.
patent: 4910779 (1990-03-01), Cooper et al.
patent: 5075697 (1991-12-01), Koizumi et al.
AT&T Technical Journal, vol. 64, No. 10, Dec., 1985, pp. 2247-2259.
The Art of Electronics, Horowitz et al., 2nd edition, 1989, "High Frequency and High-Speed Techniques", pp. 895-897.
AT&T Technical Journal, vol. 64, No. 10, Dec., 1985, "Cross-Polarization Interface Cancellation and Nonminimum Phase Fades".

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