Multiplex communications – Wide area network – Packet switching
Patent
1993-12-28
1996-11-19
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
455 41, 382131, 382132, 343841, H04B 156
Patent
active
055770266
ABSTRACT:
An apparatus is provided for transferring data between a first device and a second device, the second device being adapted to rotate with respect to the first device. The first device includes a first antenna assembly and a first transceiver assembly for transmitting and receiving signals via the first antenna assembly. The second device includes a second antenna assembly and a second transceiver assembly for transmitting and receiving signals via the second antenna assembly. The rotating antenna assembly is mounted circumferentially about the second device such that the stationary antenna is in capacitive coupling relationship substantially through an entire revolution of the second device. The apparatus is particularly useful in a CT scanner where data is transmitted from the first device to the second device via a single channel, and data is transmitted from the second device to the first device via two time-multiplexed channels so as to provide high speed data transfer from the second device to the first device at twice the rate of data transfer from the first device to the second device. The invention includes a variety of features for significantly reducing error rates, and particularly for reducing errors due to cross talk between channels.
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Computer Applications, vol. II of Queueing Systems, 1976 by John Wiley & Sons, Inc., New York, pp. 26-5 and 32-15.
Abraham Douglas
Gordon Bernard M.
Izrailit Iosef
Johnson Richard B.
Weedon Hans
Analogic Corporation
Olms Douglas W.
Patel Ajit
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