Communications: electrical – Continuously variable indicating – With meter reading
Patent
1995-07-26
1999-07-27
Marcelo, Melvin
Communications: electrical
Continuously variable indicating
With meter reading
455 383, H04Q 712
Patent
active
059297719
ABSTRACT:
A portable communication device which also has an infrared transceiver. A portable communication device can automatically establish infrared communication sessions with another portable communication device or desktop computer having an infrared transceiver. The portable communication device and the other device may exchange textual and graphical information, as well as the current time, and then reconcile the newly received information with that information in possession before the communication session began. Multiple portable communication devices and computers may communicate, while conserving battery power, using a time division multiplexing scheme where the infrared transceivers are active during a short, periodic time slots. Multiple communication session may overlap in time as long as they are not active during the same time slot.
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Galbi Elmer
Marcelo Melvin
Seiko Communication Systems Inc.
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