Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1980-12-02
1984-03-13
Faber, Alan
Facsimile and static presentation processing
Facsimile
Recording apparatus
360 22, 360 331, H04N 576
Patent
active
044371284
ABSTRACT:
A system and method of recording and reproducing wide band channel information by means of several narrow band channels involves sampling of wide band channel information, providing respective samples to corresponding narrow band channels wherein recording and reproduction take place, reproducing the narrow band signals, amplifying and shaping the reproduced narrow band signals, and then combining and amplifying the resulting narrow band signals to reproduce the original wide band signal. A preferred embodiment of the present invention involves dot interlacing the received wide band information signals in accordance with a derived sync signal to derive sample pulse outputs. Various embodiments are provided for shaping the reproduced narrow band channel signals in accordance with "phase modulation", "amplitude modulation", and "frequency modulation" modes of operation.
REFERENCES:
patent: 2952745 (1960-09-01), Walker
patent: 3359364 (1967-12-01), Kihara
patent: 3806640 (1974-04-01), Furukawa
patent: 3975764 (1976-08-01), Kobayashi
patent: 4068265 (1978-01-01), Russell
patent: 4146099 (1979-03-01), Matsushima
patent: 4232329 (1980-11-01), Horck
Faber Alan
Honeck Manfred Fred
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