Communications: electrical – Continuously variable indicating – With meter reading
Patent
1988-11-22
1990-12-25
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
340825070, 455 12, H04B 100
Patent
active
049806777
ABSTRACT:
In a satellite business communication system comprising a plurality of aperture terminals, a supervising station is coupled to the aperture terminals through a public communication network to centralize a monitoring operation of each aperture terminal. Each of the aperture terminals has a terminal directory number and a terminal indentification address while the supervising station has a primary directory number. A monitoring item is transmitting from the superivising station to a selected aperture terminal along with the terminal identification address of the selected aperture terminal and the primary directory number after a transmission path is formed by the terminal directory number through the public communcation network. A result of monitor in the selected aperture terminal is sent as a response signal back to the supervising station through a return path formed by the use of the primary directory number. The result of monitor may be stored in a status memory or be transmitted through a different path to the supervising station, if the return path is busy.
REFERENCES:
patent: 3931623 (1976-01-01), Sones et al.
patent: 4167730 (1979-09-01), Brown
patent: 4809268 (1989-02-01), Tejima et al.
Hotta Toshinori
Yoshizawa Yasunori
Magistre Dervis
NEC Corporation
Yusko Donald J.
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