Bar code symbol reading system having cordless bar code symbol r

Details Bar code symbol reading system having cordless bar code symbol r Bar code symbol reading system having cordless bar code symbol r

1997-07-09

1999-08-17

Le, Thien Minh

Registers

Coded record sensors

Particular sensor structure

239462, G06K 0810

Patent

active

059397012

ABSTRACT:
A bar code symbol reading system is provided having at least one portable bar code symbol reading device and an associated base unit positioned within the data transmission range thereof without a physical wiring connection thereto. After each successful reading of a bar code symbol, the bar code reading device automatically produces symbol character data representative of the bar code symbol, synthesizes a group of data packets each containing the symbol character data, and then transmits the synthesized group of data packets to the base unit. Upon the successful receipt of one of the transmitted data packets and the recovery of symbol character data therefrom, the base unit generates an acoustic acknowledgment signal that is perceptible to the user of the bar code symbol reading device and indicates the transmitted symbol character data has been successfully received.

REFERENCES:
patent: 4418277 (1983-11-01), Tremmel et al.
patent: 4841132 (1989-06-01), Kajitani et al.
patent: 5157687 (1992-10-01), Tymes

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