Abstract: An infrared (IR) communication system is described in which a base unit for a cell can communicate with a plurality of infrared portable devices through distributed infrared receiver/transmitter (RT) modules over a plurality of channels using IR carrier signals. A call or signal processor, referred to as a radio exchange unit, and controlling communication of a cell, communicates with the base unit to place or receive calls with the IR portable devices. The communication occurs in standard communication frames divided into transmission and receiving segments with each segment further divided into slots and with the slots containing digital data, with each communication channel formed by a slot. Each transmission segment to an RT module is immediately followed by a responsive receiving segment.
Type:
Grant
Filed:
February 17, 1998
Date of Patent:
July 30, 2002
Assignee:
Wireless Communications Products, LLC
Inventors:
James W. Crimmins, James L. Saulnier, Steven Gallo
Abstract: An infrared (IR) communication system is described in which a base unit for a cell can communicate with a plurality of infrared portable devices through distributed infrared receiver/transmitter (RT) modules over a plurality of channels using IR carrier signals. A call or signal processor, referred to as a radio exchange unit, and controlling communication of a cell, communicates with the base unit to place or receive calls with the IR portable devices. The communication occurs in standard communication frames divided into transmission and receiving segments with each segment further divided into slots and with the slots containing digital data, with each communication-channel formed by a slot. Each transmission segment to an RT module is immediately followed by a responsive receiving segment.
Type:
Grant
Filed:
February 17, 1998
Date of Patent:
October 19, 1999
Assignee:
Wireless Communications Products LLC
Inventors:
James W. Crimmins, James L. Saulnier, Steven Gallo
Abstract: An infrared (IR) communication system is described in which a base unit for a cell can communicate with a plurality of infrared portable devices through distributed infrared receiver/transmitter (RT) modules over a plurality of channels using IR carrier signals. A call processor, referred to as a radio exchange unit, and controlling communication of a cell, communicates with the base unit to place or receive calls with the IR portable devices. The communication occurs in standard communication frames divided into transmission and receiving segments with each segment further divided into slots and with the slots containing digital data, with each communication channel formed by a slot. Each transmission segment to an RT module is immediately followed by a responsive receiving segment.
Type:
Grant
Filed:
March 22, 1996
Date of Patent:
February 2, 1999
Assignee:
Wireless Communications Products, LLC
Inventors:
James W. Crimmins, James L. Saulnier, Steven Gallo