Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1979-03-07
1980-12-30
Konick, Bernard
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455 89, H04Q 700
Patent
active
042425387
ABSTRACT:
The service area of the radio telephone system is divided into a plurality of radio zones and a base station is installed in each radio zone. The base station is connected to a control unit through a common control channel and a plurality of speech channels, the control unit is connected to an ordinary telephone network, and the control unit is controlled by first and second sequence controllers for the radio system and an exchange control unit, respectively.
In a modification, each first and second sequence controller comprises a plurality of discrete sequence controllers classified according to their functions.
REFERENCES:
patent: 3310741 (1967-03-01), Uitermark et al.
patent: 3351714 (1967-11-01), Kunzelman et al.
patent: 3663762 (1972-05-01), Joel, Jr.
patent: 3764915 (1973-10-01), Cox et al.
Daniel R. McGlynn, "Microprocessors, Technology, Architecture, and Applications," (Wiley, New York) 1976, pp. 182-187.
Ito Sadao
Komura Mitsuru
Yoshikawa Noriaki
Konick Bernard
Nippon Telegraph and Telephone Public Corporation
Pfund Charles E.
Popek Joseph A.
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