Method and apparatus for calibrating a bar code scanner
January 3, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3731064 3752963 3784792 Signal processing for print scanners Data-gathering device for scanning data having a variable amplitude modulation and signal to noise ratio Method for reading information from punched carrier and device for effecting same Method and apparatus for reading bar coded data wherein the light source is periodically energized Background light intensity compensation circuit for a line scan camera system Device for scanning patterns with a regulated light source Portable laser scanning arrangement for and method of evaluating and validating bar code symbols InventorAssigneeApplicationNo. 367749 filed on 01/03/1995US Classes:235/455, Light level control235/462.01Bar codeExaminersPrimary: Pitts, Harold I.Attorney, Agent or FirmInternational ClassG06K 007/10AbstractA method and apparatus for calibrating a bar code scanner. The bar code scanner contains circuitry including a programmable read-only memory (PROM) which stores data affecting the operation of other circuitry in the bar code scanner. The operation of the bar code scanner can be optimized by being monitored by an adjustment circuit under the control of a computer, the adjustment circuit producing signals which change the data stored in the PROM. Among the aspects of the bar code scanner which can be affected are optimization of the output signal, optimization of the signal which causes the bar code symbol to be illuminated, and response of the bar code scanner to the lack of a bar code symbol to read.Field of SearchLight level control | |
