Registers – Coded record sensors – Particular sensor structure
Patent
1997-07-09
2000-01-18
Le, Thien Minh
Registers
Coded record sensors
Particular sensor structure
23546246, 23547202, G06K 710
Patent
active
060150912
ABSTRACT:
A code symbol reading device includes a portable housing that contains a light source. Light from the light source is projected into a scan field external to the housing and onto a code symbol on an object located within the scan field. The light reflected off the code symbol is detected within the housing to produce scan data that is indicative of the detected light intensity. The scan data is processed to detect and decode the code symbol and to produce symbol character data that are representative of the decoded code symbol. A data packet utilizing the symbol character data is synthesized and modulated onto a carrier signal that is transmitted to a base unit where the carrier signal is demodulated and the data packet recovered. The received data packet is analyzed to recover the symbol character data, and an acknowledgment signal is produced to acknowledge the receipt of the symbol character data at the base unit.
REFERENCES:
patent: 5808285 (1998-09-01), Rockstein et al.
patent: 5811786 (1998-09-01), Rockstein et al.
Colavito Stephen J.
German Gene
Knowles Carl Harry
Rockstein George B.
Wilz David M.
Le Thien Minh
Metrologic Instruments Inc.
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