Programmable spectrophotometer using a data memory for storing a sequence of generalized commands
US5400138A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1992 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Nov 20, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/283
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A color measuring system includes a portable spectrophotometer connectable to a general-purpose computer. The portable unit includes a microprocessor with a read-only program memory storing machine executable instructions to implement data processing for color measurement purposes and input/output functions including key reading and data transfer functions and display functions. A random-access data memory is used to temporarily store process data for later transfer to the general-purpose computer. An editor program and a compiler program in the general-purpose computer may be used to generate a program for the microprocessor using high-level, generalized commands. After such a program has been written and compiled in the general-purpose computer, it is transferred to a command buffer area in the random-access data memory of the microprocessor. The microprocessor, in its program memory, includes a command interpreter including a predefined sequence of machine executable instructions for each generalized command. When executed, the command interpreter reads a generalized command from the data memory and, if necessary, updates relevant data pointers and executes the predefined sequen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.