Data packet transmission for channel-sharing collocated wireless devices
First Claim
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1. A wireless data input device system, comprising:
- an input data generator;
a first processor for packetizing input data received from said input data generator into data packets comprising header data and payload data;
a transmitter for wirelessly transmitting said data packets;
a receiver for receiving the data packets transmitted by said transmitter; and
a second processor for processing the data packets received by said receiver;
wherein, said header data comprises trigger data serving to trigger a reinitialization of the processing of data packets by said second processor, said trigger data being included in a first header of a continuous data transmission, and being omitted from the headers of subsequent packets in the continuous data transmission.
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Abstract
Interference between collocated wireless devices sharing the same RF channel is avoided or minimized by a new header format provided for the first data packet in an RF transmission. By inclusion of an invalid pulse in the header of each isolated data packet, an FM receiver that “captures” a desired signal from a closest device, midstream of processing an undesired signal (pertubation) from a more distant collocated device, is caused to abort the invalid packet and reinitialize. The receiver is then able to properly process the first packet in the desired transmission (from the closest device).
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Citations
20 Claims
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1. A wireless data input device system, comprising:
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an input data generator; a first processor for packetizing input data received from said input data generator into data packets comprising header data and payload data; a transmitter for wirelessly transmitting said data packets; a receiver for receiving the data packets transmitted by said transmitter; and a second processor for processing the data packets received by said receiver; wherein, said header data comprises trigger data serving to trigger a reinitialization of the processing of data packets by said second processor, said trigger data being included in a first header of a continuous data transmission, and being omitted from the headers of subsequent packets in the continuous data transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of wireless data packet transmission, comprising the steps of:
- generating input data;
packetizing said input data into data packets comprising header data and payload data;
wirelessly transmitting said data packets;receiving the transmitted data packets; and processing the received data packets; wherein, said header data comprises trigger data serving to trigger a reinitialization of the processing of the data packets, said trigger data being included in a first header of a continuous data transmission, and being omitted from the headers of subsequent packets in the continuous data transmission. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
- generating input data;
Specification