Signal structures for double side band-quadrature carrier modula

Details Signal structures for double side band-quadrature carrier modula Signal structures for double side band-quadrature carrier modula

1984-06-15

1989-09-12

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

332103, 375 42, 375 54, 375 56, 375 67, H04L 2720

Patent

active

RE0330566

ABSTRACT:
Double side band-quadrature carrier modulation signal points as mapped on the complex plane are drawn from an alphabet consisting of at least 8 points, and are set up in concentric rings each rotated by 45.degree. with respect to adjacent rings. Differential encoding is shown encoding the phase components of the transmitted signals.

REFERENCES:
patent: 3123670 (1964-03-01), Kaenel
patent: 3614622 (1971-10-01), Holsinger
patent: 3619501 (1971-11-01), Nussbaumer
patent: 3619503 (1971-11-01), Ragsdale
patent: 3706945 (1972-12-01), Yanagidaira et al.
patent: 3878468 (1975-04-01), Falconer et al.
C. R. Cahn, IRE Transactions on Comm. Systems, vol. CS-8, No. 1, pp. 150-155, Sep. 1960.
Hancock, J. C., Lucky, R. W., "Performance of Combined Amplitude and Phase Modulated Communications Systems", IRE Trans. on Comm. Sys., vol. CS-8, pp. 232-237, Dec. 1960.
R. W. Lucky, "Digital Phase and Amplitude Modulated Communication Systems", Doctoral Thesis, Purdue University, Aug. 1961.
C. N. Campopiano et al, IRE Transactions on Comm. Systems, vol. CS-10, No. 1, pp. 90-95, Mar. 1962.
R. W. Lucky et al, IRE Transactions on Comm. Systems, vol. CS-10, No. 2, pp. 185-192, Jun. 1962.
R. W. Lucky et al, Principles of Data Communications; McGraw-Hill Book Company, 1968.
N. I. Nasell, Bell System Technical Journal, vol. 47, No. 6, pp. 1001-1018, Jul.-Aug. 1968.
American Telephone and Telegraph Co., "Transmission Specifications for Voice Grade Private Line Data Channels", Mar. 1969.
Codex Corporation, letter to Auerbach Information, Inc., Re, Announcing New 4800 bps Modem, 2 pages, 14 Sep. 1970.
A. Lubarsky, Jr., Proceedings of the National Electronics Conference, vol. XXVI, pp. 942-945, Dec. 1970.
J. Salz, Bell System Technical Journal, vol. 50, No. 7, pp. 2399-2419, Sep. 1971.
C. M. Thomas, "International Telemetering Conference", pp. 289-300, Oct. 10-11-12, 1972.
G. J. Foschini et al; Bell System Technical Journal, vol. 52, No. 6, pp. 927-965, Jul.-Aug. 1973.
Bell System Technical Reference, "Data Communications Using Voiceband Private Line Channels", pp. 1-51 & A1-A16, Oct. 1973.
CCITT; Special Study Group A-Contribution No. 92, "DSB Modulation as a Preferred Technique . . . ", pp. 1-28, Aug. 1974.
Codex Corporation, Statement on Patents and Patent Licensing, Contribution No. 221, CCITT Special Study Group A, Dec. 1975.
CCITT Sixth Plenary Assembly, "9600 Bits per Second Modem Standardized for Use on Leased Telephone-Type Circuits", Orange Book, vol. VIII.1, pp. 143-153, Sep.-Oct. 1977.

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