Communication system wherein a clocking signal from a controller, a request from a node, acknowledgement of the request, and data transferred from the node are all provided on different frequencies, enabling simultaneous transmission of these signals
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United States of America Patent
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Aug 4, 2009
Grant Date -
Nov 15, 2007
app pub date -
Jul 24, 2007
filing date -
Jun 24, 1994
priority date (Note) -
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Abstract
A communication system is provided for communication between network nodes and a communication controller. In the network, a request signal is transmitted from a first node to the communication controller when the first node has a packet data message to transmit. The communication controller then acknowledges the request, and the first node transmits its data message in response. The communication controller further transmits a clocking signal allowing synchronization of the node signals with the controller signals. The clocking signal, request, acknowledgement and data message can all be provided on different frequencies, allowing simultaneous transmission of these signals for efficient operation.
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