WIRELESS PERSONAL LOCAL AREA NETWORK
3 Assignments
0 Petitions
Accused Products
Abstract
A transceiver apparatus for creating a wireless personal local area network between a computer terminal and one or more peripheral devices. A separate transceiver is connected to the computer terminal and to each peripheral device. The transceivers can be connected to the terminal or peripheral device either internally or externally. A low power radio is used to communicate information between the computer terminal and peripheral devices. Different transceivers can be used for modifying the carrier frequency and power of the local area network. The microprocessor is located inside each transceiver and controls the information flow of the transceiver including the communication protocol which allows each device to know if other devices are communicating, which devices are being communicated to, and selectively address the peripheral devices. An Idle Sense communication protocol is used for information transfer between the computer terminal and the peripheral devices, increasing efficiency in power management and compensating for transmission collisions.
108 Citations
90 Claims
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1-9. -9. (canceled)
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10. A network device for operating in a communication system that includes a main communication network and a radio network, the network device comprising:
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transmit circuitry configured to transmit signals on the main network and to transmit signals on the radio network; and
receive circuitry configured to receive signals from the main network and to receive signals from the radio network;
wherein the network device is operable to serve as a master device on the radio network. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A network device for operating in a communication system that includes a first radio network and a second radio network having a shorter range than the first radio network, the network device comprising:
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transmit circuitry configured to transmit signals on the first radio network and to transmit signals on the second radio network; and
receive circuitry configured to receive signals from the first radio network and to receive signals from the second radio network;
wherein the network device is operable to serve as a master device on the second radio network. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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59. A communication system comprising:
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a first radio network;
a second radio network having a shorter range than the first network; and
a mobile network device operable to communicate with the first radio network and operable to communicate with the second radio network;
the mobile network device being operable to participate as a slave device on the first radio network and operable to participate as a master device on the second radio network. - View Dependent Claims (60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90)
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Specification