Vestigial-sideband transmission system for synchronous data sign

Details Vestigial-sideband transmission system for synchronous data sign Vestigial-sideband transmission system for synchronous data sign

1976-11-16

1978-02-14

Safourek, Benedict V.

325136, 325330, H04B 168

Patent

active

040741990

ABSTRACT:
A vestigial-sideband transmission system for synchronous data signals. The transmitter is provided with a filtering and modulating circuit for generating a vestigial-sideband channel signal which at the location of its carrier frequency and at the location of a frequency which is spaced from this carrier frequency by a distance equal to one half of the clock frequency of the data signals is a double-sideband modulated signal. In the receiver the reference carrier for coherent domodulation and the reference clock signal for regeneration can be simply recovered from the transmitted vestigial-sideband channel signal itself.

REFERENCES:
patent: 3204029 (1965-08-01), Groff et al.
patent: 3638122 (1972-01-01), Gibson
patent: 3706054 (1972-12-01), Starr et al.
patent: 3793588 (1974-02-01), Gerwen et al.

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