Communications: electrical – Continuously variable indicating – With meter reading
Patent
1991-08-20
1994-02-08
Peng, John K.
Communications: electrical
Continuously variable indicating
With meter reading
34082506, 34082516, 370 76, 370125, 379 93, 379 97, 379 98, G05B 2302, H04M 1100, H04M 1106, H04J 114
Patent
active
052851982
ABSTRACT:
A communication network includes a first communication device (10, 64), a second communication device (14, 66) connected through a switched network (12, 68) to the first communication device (10, 64), in order to carry out a communication with the first communication device (10, 64), and a monitor/management device (16, 60) for performing a monitoring and/or management of the first and the second communication devices. In a first embodiment of the present invention, a disconnection factor requiring a disconnection between the first and the second communication devices is detected in the second communication device, and is transmitted to the first communication device, and thereafter, a connection between the first and the second communication devices is disconnected. In a second embodiment of the present invention, monitor/management information from the monitor/management device to the second communication device is once retained in the first communication device and is transmitted to the second communication device while both are connected to thereby carry out a user communication. Monitor/management information from the second communication device to the monitor/management device is transmitted to the first communication device while both are connected, and once retained in the first communication device.
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"Modem Systems for Corporate Information Networks", T. Anzai et al., NEC Research and Development No. 98, Jul. 1990, Tokyo, Japan, pp. 72-79.
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"EDNET for the Supervision of Data Transmission Networks", B. Lengquist et al., Ericsson Review, vol. 61, No. 1, 1984, Stockholm SE, pp. 26-31.
Fujitsu Limited
Hill Andrew M.
Peng John K.
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