Registers – Coded record sensors – Particular sensor structure
Patent
1996-06-07
2000-07-18
Le, Thien Minh
Registers
Coded record sensors
Particular sensor structure
G06K 710
Patent
active
060894563
ABSTRACT:
A handheld low power user device for accessing and controlling interactive bidirectional real time telecommunications with a host server over a telecommunication path, the handheld low power user device having a low power sleep mode and components including a communication transceiver, a microprocessor, a power supply interface and an operator interface selected from among a keypad, a bar code reader, an audio system comprising a speaker, a display screen and a microphone; wherein, the communication transceiver includes a low power voice and data modem, and a DTMF or an MF tone generator; the audio system includes a dual power system; the bar code reader includes a bar code media proximity detector; the microprocessor includes less than about 128 Kbytes of PROM, a protected memory, and RAM; the power supply interface is connected with a telephone line, a cellular or wireless telephone battery, or a PBX line; and the handheld low power user device operates on less than about 300 milliwatts of power when off hook (i.e., active).
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Boydston David H.
Walsh Joseph F.
E-Comm Incorporated
Le Thien Minh
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