Facsimile and static presentation processing – Facsimile – Facsimile system interface
Patent
1994-03-14
1996-12-24
Vu, Kim
Facsimile and static presentation processing
Facsimile
Facsimile system interface
358431, 358434, 358438, 358439, 379100, 370466, 395500, H04N 141, H04N 132, H04N 140, H04N 100
Patent
active
055878105
ABSTRACT:
A facsimile interface unit, which encodes signals from a facsimile terminal for transmission by satellite, can only encode signals which conform to the Group 3 standard. The interface unit intercepts signals which identify non-standard features supported by the terminal and replaces them by a modified signal of the same format which does not identify any non-standard features. Another facsimile terminal receiving the modified signal is prevented from enabling any non-standard features and signals to the first facsimile terminal that the Group 3 standard is to be followed. Therefore, the facsimile interface unit is able to encode and decode signals successfully during the subsequent transmission.
REFERENCES:
patent: 5293253 (1994-03-01), Kida et al.
patent: 5303066 (1994-04-01), Kawaguchi
patent: 5430863 (1995-07-01), Kmiec
patent: 5461488 (1995-10-01), Witek
Inmarsat-B System Definition Manual, Issue 3.0, Section 3.5.8, p. III-12 (Nov. 1991).
S. Dimolitas, J. H. Rieser, and H. Feldman; "Real-time Transmission of Group 3 Facsimile over Interconnected Public Switched Digital Mobile Satellite Networks"; 8276 (Comsat Technical Review) 22 1992, No. 1; pp. 125-145.
K. C. Halton, "The Evolution and Future of Group 3 Facsimile Standards", BT Technology Journal, vol. 12, No. 1, pp. 53-60 (1994).
Dimolitsas et al., "Group 3 Facsimile Transmission over Digital Satellite Land Mobile Netowrks", Vehicular Technology Society, 42nd VTS Conference, vol. 1, pp. 240-246 (1992).
International Mobile Satellite Organization
Vu Kim
Williams Kimberly A.
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