Asymmetrical sideband transmission

Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo

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Details

455 61, 455102, 455103, H04H 500

Patent

active

045690731

ABSTRACT:
An amplitude modulated radio transmission system is described which is compatible with conventional AM receivers. The transmitted signal comprises a carrier and two unequal amplitude sidebands. This signal can be received by receivers that are tuned to the carrier as well as receivers that are off tuned to favor the stronger sideband.

REFERENCES:
patent: 2666133 (1954-01-01), Kahn
patent: 3760419 (1973-09-01), Poschadel et al.
patent: 3803490 (1974-04-01), Almering et al.
patent: 3908090 (1975-09-01), Kahn
patent: 4124779 (1978-11-01), Berens et al.
patent: 4185171 (1980-01-01), Parker
patent: 4194154 (1980-03-01), Kahn
patent: 4225751 (1980-09-01), Hershberger
patent: 4338491 (1982-07-01), Parker et al.
patent: 4373115 (1983-02-01), Kahn
L. R. Kahn, "Compatible Single-Sideband," Proc. IRE, vol. 49, pp. 1503-1527, Oct. 1961.

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