Registers – Coded record sensors – Particular sensor structure
Patent
1995-05-09
1998-11-10
Pitts, Harold
Registers
Coded record sensors
Particular sensor structure
235462, G06F 710
Patent
active
058347534
ABSTRACT:
A portable, hand-held data processing assembly of modular structure includes a base unit with a keyboard and a display screen. An indicia reader module is housed in a housing shell which is attachable to the base unit. The indicia reader module can contain a reflected light indicia reader for non-contact essentially instantaneous reading of bar codes of the like disposed in a spaced, non-contacting relationship to the assembly. The indicia reader module can also include a processor. The base can include a light source. Additionally, the base unit can include a battery for powering the hand-held data processing assembly. A data collection and communications module can include a stacked arrangement of a communications interface main circuit board, a radio and a laser scanner assembly which are housed in a housing shell attachable to the base unit. In this arrangement, the radio is mounted in spaced relationship to one side of the main circuit board, while the laser scanner assembly is mounted to the other side of the main circuit board. A support frame and a plurality of ground planes in the sandwiched main circuit board and a routing circuit board form an RF cage for shielding RF interference which may be generated by the radio. Also disclosed is a method for reducing the operational power consumption requirements of laser bar code scanners by analyzing reflected laser light in order to determine the presence of optically readable information sets.
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Danielson Arvin D.
Durbin Dennis A.
Hanson George E.
Norand Corporation
Pitts Harold
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