JPS60201423A - Input tablet - Google Patents

Abstract

PURPOSE:To obtain an input tablet which can reduce a burden of a host by preparing a code converting ROM cartridge corresponding to a replaceable number plate. CONSTITUTION:When a magnetic material indicating rod 3 is made close to a number plate 2, an induced electromotive force is generated by electromagnetic coupling, and an interruption is generated in a process 15 through a current detecting line selecting circuit 8, a detecting circuit 9 and an interruption flip-flop 13. When an X address and a Y address of the time point when said interruption has been generated are denoted as Xj and Yk, respectively, the contents of a code converting table 17 corresponding to coordinates (Xj, Yk) are outputted to a buffer 20 as a code corresponding to an input. Also, the contents of the code converting table 17 correspond to the number plate 2, and when replacing the number plate 2, a code corresponding to a new number plate can be outputted by replacing the code converting table 17 together with a ROM cartridge 4.

Description

TECHNICAL FIELD The present invention relates to input tablets having multiple interdigital dials.

(Prior art) For input tablets where the information to be input uses a large number of characters or spans a large number of items, a dial board with a different arrangement of characters for each industry, job, or for ease of use by the operator is used. is required, and a method is adopted in which multiple dials are prepared and used selectively.

In such an input tablet, a conversion table for converting the positional information of characters and items on the input tablet into a code is either stored in the host device's internal memory, or is loaded into the input tablet's memory from the host device. is common.

In the former case, the disadvantage is that it monopolizes the memory of the host device, and in the latter case, as the interface between the host device and the input tablet tends to be a serial interface, it is difficult to transfer large amounts of table data. The disadvantage is that it takes several tens of seconds (2 seconds) to complete.

(Object of Issue 81) The object of the present invention is to provide a one-to-one combination of the plurality of replaceable dials and the corresponding code exchange ROM cartridges.
The purpose of the present invention is to provide an input tablet that can reduce the burden on the host device by replacing the input tablet with the input tablet.

(141 composition of the invention) The device of the present invention is an input tablet that outputs an information code corresponding to positional information on a dial indicated by a pointing stick, and the device F is used in place of the input tablet. A dial of class 1 or higher, and each of the dials r
(Includes a memory cartridge exclusively used for explanations that is used in place of the input tablet that stores information codes corresponding to positional information, and a memory cartridge exclusively used for explanatory dials and bladders. Configured for use as a replacement installation.

(Example) Next, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of an 1A view showing an embodiment of the present invention. In FIG. 1, a replaceable dial 2 is set on an input tablet 1, and a replaceable ROM cartridge 4 is set from the left side.

FIG. 2 is a block diagram showing an embodiment of the invention. Here, an example of an input tablet using an electromagnetic coupling method controlled by a processor is shown.

The processor 15 is operated by a control program 16 and has an X address register 10 and an X address register 1.
1 is sequentially updated while the current drive circuit 7 repeatedly scans the X and Y coordinates via the current detection line selection circuit 8. In this state, if you bring the magnetic indicator stick 3 close to the dial 2!
An induced electromotive force is generated due to magnetic coupling, and the current detection line selection circuit 8
．． An interrupt occurs to the processor 15 through the interrupt interrupt flop 3 of the detection circuit 99. X at the time the interrupt occurred
Let the address be Xj and the Y address be Yk, then the coordinates (X
j, Yk) is sent to the code output buffer 20 as the code corresponding to the input.
Output to.

The contents of the code conversion table 17 correspond to the 1 dial plate 2, and if the code conversion table 17 is replaced together with the ROM cartridge 4 when replacing the dial plate 2, a code corresponding to the new dial plate will be output. be able to.

Although the embodiment described above uses an electromagnetic coupling type input tablet as an example, the present invention can be similarly applied to capacitive coupling and other methods, and these cases are also included in the scope of the claims of the present application. It is clear that

(Effects of the Invention) The present invention includes a code conversion R corresponding to an exchangeable dial plate.
Providing an OM cartridge has the effect of reducing the burden on the host device and improving the responsiveness of the input tablet.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an external appearance showing an embodiment of the present invention, and FIG. 2 is a block configuration diagram of FIG. 1. 1... Input tablet, 2... Dial board, 3... Pointer stick, 4... ROM car)
IJ edge, 7...Current drive circuit, 8...
...Current detection line selection circuit, 9...Detection circuit, 1
0...X address register, 11...
X address register, 12... Gate, 13.
...Interrupt flop, 14...Timing control circuit, 15...Processor, 16
...Control program, 17...
・Code conversion R, OM, 18...data bus,
19...address bus, 20...code output buffer. 6-

Claims (1)

[Scope of Claims] An input tablet that outputs an information code corresponding to alignment degree information on a dial indicated by a pointing stick, comprising two or more types of dial plates that are installed and used in place of the input tablet. , a read-only memory cartridge which is installed and used as a replacement for the input tablet and stores an information code corresponding to positional information corresponding to each of the dial plates; An input tablet that can be used interchangeably with a Torille◎