Registers – Coded record sensors – Particular sensor structure
Patent
1994-02-02
1996-07-16
Davis, George B.
Registers
Coded record sensors
Particular sensor structure
395750, 395821, 364405, G06K 710
Patent
active
055369286
ABSTRACT:
An interface (12) for coupling a serial port (14) of a computer (16) to a bar code scanner (18). Electrical power required by the bar code scanner is delivered from the serial port of the computer. The bar code scanner is operated in either a reduced-power mode in which it is not scanning or in a higher power scanning mode. The interface may include an energy storage device (36) for storing energy from the serial port when the bar code scanner is operated in the reduced-power mode. When the bar code scanner is used for scanning, the energy storage device supplies the additional power required. In one embodiment, unformatted pulse data output from the bar code scanner are conveyed by data lines to a decoder (34) disposed in the interface. The unformatted pulse data are processed by the decoder to produce formatted data that are input to the serial port. In another embodiment, the unformatted data are directly input on a handshaking line of the serial port and then decoded by a decoder (36), which is preferably implemented within software executed by the computer.
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"Softwedge" product flyer, MTS Marketing, Technology & Sales, single sheet, undated.
Anderson Ronald M.
Davis George B.
Seagull Scientific Systems, Inc.
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