Wireless personal local area network utilizing removable radio frequency modules with digital interfaces and idle sense communication protocol
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Feb 11, 1997
Issued Date -
N/A
app pub date -
Mar 5, 1993
filing date -
May 13, 1991
priority date (Note) -
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status (Latency Note)
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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.
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