초록 ▼

An automatic bar code symbol reading system comprising components for carrying out object detection, scanning, photoreceiving, A/D conversion, bar code presence detection, symbol decoding, data format conversion, data storage and data transmission functions. In general, the bar code symbol reading d

An automatic bar code symbol reading system comprising components for carrying out object detection, scanning, photoreceiving, A/D conversion, bar code presence detection, symbol decoding, data format conversion, data storage and data transmission functions. In general, the bar code symbol reading device includes a control system having a plurality of control centers that control the operation of the system components in accordance with preselected system control operations. Each of the control centers are responsive to control activation signals generated by certain of the system components upon the occurrence of predefined conditions. Certain of the control centers are capable overriding other control centers to provide diverse control capabilities which facilitates execution of intelligent operations and power consumption, during bar code symbol reading.

대표청구항 ▼

[ What is claimed is:] [1.] An automatic hand-supportable laser scanning system having a programmed mode of automatic operation for consecutively reading code symbols without system reactivation, said automatic hand-supportable laser scanning system comprising:a hand-supportable housing having a lig

[ What is claimed is:] [1.] An automatic hand-supportable laser scanning system having a programmed mode of automatic operation for consecutively reading code symbols without system reactivation, said automatic hand-supportable laser scanning system comprising:a hand-supportable housing having a light transmission aperture through which visible light can exit and enter said hand-supportable housing;system activation means in said hand-supportable housing, for generating an activation signal indicative of the presence of an object in at least a portion of a scan field defined external to said hand-supportable housing;activatable scan data producing means in said hand-supportable housing for producing, when activated, scan data from said object located in at least a part of said scan field, said activatable scan data producing means includinga laser beam producing means for producing and projecting a visible laser beam through said light transmission aperture, and scanning said visible laser beam across said scan field and a code symbol on said object, andlaser light detecting means for detecting the intensity of laser light reflected off said bar code symbol and passing through said light transmission aperture, and for automatically producing scan data indicative of said detected light intensity;activatable scan data processing means for processing, when activated, produced scan data so as to detect and decode said scanned code symbol and automatically produce symbol character data representative of said decoded code symbol;system control means for automatically activating said activatable scan data producing means and said activatable scan data processing means in response to the generation of said activation signal, and controlling the operation thereof during said programmed mode of automatic code symbol reading such that, during said programmed mode of automatic operation, two or more code symbols on one or more objects in said scan field can be consecutively detected and decoded without reactivation of said activatable scan data processing means or said activatable scan data processing means.