Multiplex communications – Wide area network – Packet switching
Patent
1992-08-13
1993-06-15
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
3408251, 395200, H04J 304, G06F 312
Patent
active
052205665
ABSTRACT:
There is disclosed a multiplexer for communicating between plural first apparatuses and a second apparatus. The multiplexer comprises plural receiver for receiving data transmitted from plural first apparatuses and outputting the received data through a first switch to the second apparatus, respectively, plural transmitter for transmitting data received through a second switch from the second apparatus to plural first apparatuses, respectively, and a controller for controlling the first and second switches, which is operable in first and second operation modes. In the first operation mode, the controller enables the first switch to selectively switch over plural receiver when a predetermined condition is effected, and enables the second switch to selectively switch over plural transmitter accompanying with enabling the first switch. In the second operation mode, the control means enables the second switch to selectively switch over plural transmitter according to data received from the second apparatus.
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Instruction manual of a switching unit "Chibi" of model DEB-131 and DEB-134 manufactured by MICON kogyo kabushiki kaisha, Tokyo, Japan, Jan. 10, 1985 (w/ partial translation).
Kizou Hassan
Minolta Camera Kabushiki Kaisha
Olms Douglas W.
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