Pulse or digital communications – Spread spectrum – Direct sequence
Patent
1986-03-12
1987-12-22
Shepperd, John W.
Pulse or digital communications
Spread spectrum
Direct sequence
375 3, 375110, H04L 700
Patent
active
047150491
ABSTRACT:
A clock recovery and data retiming circuit is disclosed which utilizes a SAW filter to form the recovered clock signal. The phase shift of the received data signal associated with various attenuation and distortion effects of the communication channel is compensated for and removed from the retimed data signal by adjusting the phase of the SAW filter.
REFERENCES:
patent: 4169286 (1979-09-01), Uzunoglu et al.
patent: 4296389 (1981-10-01), Fuller et al.
patent: 4339823 (1982-07-01), Predina et al.
patent: 4355408 (1982-10-01), Scarrott
patent: 4442574 (1984-04-01), Wanuga et al.
patent: 4495431 (1985-01-01), Grudkowski
"Acoustoelectric SAW Phase Shifter", Appl. Phys. Letter, vol. 31, No. 9, Nov. 1977, Crowley et al, pp. 558-560.
"Voltage Controlled Monolithic SAW . . . ", IEEE Trans Sonics and Ultrasonics, vol. SU-29, No. 5, Sep. 1982, Urabe, pp. 255-261.
"Optical Fiber Repeatered Transmission . . . ", IEEE Trans. Sonics and Ultrasonics, vol. SU-30, No. 3, May 1983, Rosenberg et al, pp. 119-126.
"Minimum Chip Count Regenerators . . . ", ICC'83 Conference Proceedings, Jun. 1983, Cochrane et al, pp. 686-689.
"A Highly Integrated Regenerator . . . ", J. of Lightwave Tech., vol. LT-2, No. 6, Dec. 1984, Ross et al, pp. 895-900.
"Timing Recovery with SAW . . . ", J. of Lightwave Tech., vol. LT-2, No. 6, Dec. 1984, Rosenberg et al, pp. 917-925.
"An Undersea Fiber-Optic Regenerator . . . ", J. of Lightwave Tech., vol. LT-2, No. 6, Dec. 1984, Dawson et al, pp. 926-932.
"Analysis of Jitter Peaking Effect . . . ", IEEE Trans. on Commun., vol. COM-33, No. 7, Jul. 1985, Fishman et al, pp. 654-664.
Andrews George E.
Davis Paul C.
Farley Dennis C.
Kravitz Stanley H.
Meeker Thrygve R.
American Telephone and Telegraph Company AT&T Bell Laboratories
Koba Wendy W.
Parker Michael D.
Shepperd John W.
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