JPS60134322A - Coordinate reader - Google Patents

Abstract

PURPOSE:To execute efficiently digitization by providing an independent data memory part on each of plural coordinate indicators provided on one tablet. CONSTITUTION:Plural coordinate indicators 2 are provided on one tablet 1 supported by a rack base 3. A controller 4 consisting of a CPU5 for processing coordinate value data, a program memory part 6, a data memory part 7 corresponding to the number of said indicators 2, etc. is connected to this tablet 1. As a result, a control of plural coordinate indicators 2 is executed on a time division lasis by a CPU5 so that they can be used simultaneously and independently. Therefore, for instance, in case of a coordinate input value inputted by the N-th coordinate indicator, a flag for showing it, etc. are annexed to a generated coordinate value, this flag, etc. are analyzed before processing of coordinate conversion, etc. is executed, only said data memory part 7 corresponding to the N-th coordinate indicator is called out, and various processings are executed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coordinate reading device, and more particularly, the present invention relates to a coordinate reading device, and in particular, a single tablet is provided with a plurality of coordinate indicators and the same number of mutually independent data memory units corresponding to each of the coordinate indicators. The present invention relates to a coordinate reading device.

Figure 1 shows a schematic diagram of the coordinate value data processing of the conventional coordinate reading device.As shown in Figure 1, the coordinate value data generated by the tablet and the coordinate indicator are stored in the data memory section. By repeatedly writing and reading information at any time, coordinate conversion, formatting,
The read mode is controlled and output to the interface. When performing a series of these processes, information such as data and flags is stored and processed in a single data memory unit, so if multiple coordinate indicators are used simultaneously on one tablet, Controlling the reading mode may limit the operation of the coordinate reading device, or cause confusion or overwriting of data from multiple coordinate indicators, and if two or more coordinate indicators are used at the same time, each coordinate indicator may be It has been extremely difficult to digitize coordinate values correctly and effectively.

In order to solve the above-mentioned drawbacks, the present invention provides an independent datame section for each of the six coordinate indicators of the tally equipped on one tablet and makes it correspond to each coordinate indicator. It prevents confusion and overwriting of data and flags, etc., and even if multiple coordinate indicators are used simultaneously on one tablet, the coordinate values from each coordinate indicator are always output as correct values, and To provide a coordinate reading device in which operations of the coordinate reading device, such as control of reading mode, can be specified completely independently for each coordinate indicator by associating flags with each coordinate indicator independently. It is intended for this purpose.

A perspective view of the coordinate reading device for explaining the present invention is shown in FIG. 2, and a schematic flowchart of the processing is shown in FIG. 3. In FIG. 2, 1 is a tablet, 2 is a plurality of coordinate indicators provided on the tablet 1, and 3 is a pedestal for supporting the tablet 1. 4 is the tablet 1
A controller connected to or built in, which includes a CPU unit 5 that processes coordinate value data, a program memory unit 6 that stores CPH programs, and a controller that stores and reads data and flags. The data memory 7 is connected to the data bus 8゜address bus 9.
’ is connected and implemented.

CPU section 5. Program memory section 6. Data memory section 7
．． Data bus8. A circuit block diagram showing the relationship of the address bus 9 is shown in FIG. The processing method JIFj will be explained according to the flowchart in FIG. Control the coordinate indicator 2 by C
The PU unit 5 time-divisions the coordinate values, but by which method, for example, a flag indicating that the coordinate values are input from the Nth coordinate indicator is attached to the generated coordinate values, and processing such as coordinate transformation is performed. Before parsing the flags etc. mentioned above,
Only the data memory section corresponding to the Nth coordinate indicator is called up by pointer control, etc., and then processing such as coordinate conversion, formatting, outputting, etc. is performed.

At this time, if the data memory section corresponding to other coordinate indicators is not accessed, even if multiple coordinate indicators are used at the same time, the data obtained from those coordinate indicators may be confused or overwritten. It is possible to always maintain correct data without being corrupted. Furthermore, if a flag or status for distinguishing each coordinate indicator is output at the same time when outputting coordinate values, the device receiving the coordinate values can easily determine which coordinate indicator has digitized the coordinate values. Furthermore, by assigning flags for controlling the reading mode and the like to each coordinate indicator independently, the operation of the coordinate reading device can be set independently for each coordinate indicator. Finally, some coordinate indicators can digitize the ischemia value once, while other coordinate indicators can digitize the coordinate values continuously, and each can be digitized simultaneously on the same tablet. Become. Moreover,
By simply switching the data area, the program can be used for each coordinate indicator, so the program memory is large.
'l There is almost no need to increase.

As described above, according to the present invention, multiple coordinate indicators can be used simultaneously and independently on the F11 tablet, so multiple people can digitize multiple drawings simultaneously using one coordinate reading device. , it is possible to digitize one drawing by multiple people at the same time by dividing the area, draw several lines at the same time, and differentiate points and lines in multiple ways, making it cost-effective. It is very effective in improving the efficiency of digitization and improving the efficiency of digitization.

[Brief explanation of drawings]

FIG. 1 is a schematic flowchart of coordinate value data processing of a conventional coordinate reading device, FIG. 2 is a perspective view of the coordinate reading device, and FIG. 3 is a schematic flowchart of ischial value data processing for explaining the present invention. FIG. 4 is a circuit block diagram of the CPU section and memory section. 1...tablet 2...coordinate indicator 3...shelf
Base 4...Controller 5...CPU section 6...Program memory section 7...Data memory section. Applicant Seiko Electronic Industries Co., Ltd. Agent Patent Attorney Tsutomu Mogami

Claims (1)

[Claims] A plurality of independent coordinate indicators provided on one tablet, an OJU unit for inputting signals from each of these coordinate indicators, and a ninth CPU unit that processes data from this CPU unit. and a plurality of data memory sections provided corresponding to the number of coordinate indicators, and configured such that data reading from each coordinate indicator can be performed independently. .