Computer-controlled device for detecting optical transmission and/or remittance properties of a measuring object, method for operating such a device and method for initializing measuring functions of such a device
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United States of America Patent
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Nov 16, 1999
Grant Date -
N/A
app pub date -
Aug 22, 1995
filing date -
Aug 24, 1994
priority date (Note) -
Expired
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Abstract
A computer-controlled device for detecting optical transmission and/or remittance properties of a measuring object has a measuring unit for illuminating the measuring object and for receiving the light transmitted by the measuring object and/or reflected from the measuring object. Furthermore, it has an input unit for selecting the type of measurement and the like, as well as a display unit for displaying the values measured. Moreover, it comprises a first non-volatile memory in which the measuring functions of the device are stored, as well as a control unit for controlling all procedures in the device. In a second non-volatile memory are stored release codes assigned to the individual measuring functions and, with the help of which, the control unit accesses the measuring functions in the first non-volatile memory.
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