H - Electricity – 04 – M
Patent
H - Electricity
04
M
325/17, 379/3
H04M 11/06 (2006.01) H04B 1/50 (2006.01) H04B 7/185 (2006.01)
Patent
CA 1124331
25-1-1979 1 PHN 9152 ABSTRACT; "Satellite communication system for speech and telegraphy". Satellite communication system for speech signals located within the telephony band and one or more data signals, wherein half-duplex data traffic between ground- based stations can be effected simultaneously with, but separated from, full-duplex speech traffic between two ground-based stations. The use of a second receiver enables all ground-based stations to follow both the data traffic and the speech traffic.
329739
Grotjohann Hermanus H.
Reynders John R.
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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