Key inputting device and telecontrol sending machine with this device

Abstract

The present invention provides a key input device capable of manufacturing key input devices with different specifications in a short time only by changing the printed pattern of a keyboard conversion part (3). A plurality of movable side leads (7) and fixed side leads (9) printed on the flexible film substrate (5) of the keyboard conversion part (3) are connected to the microcomputer (2) correspondingly. A plurality of signal pins, and detects a pressed key (12) by connecting a set of movable side leads (7) and fixed side leads (9). The layout of the key (12) can be changed only by changing the printed pattern. In addition, even if the corresponding connection relationship with the signal pin is different, the control program that matches the detection action of the key (12) can be written into the programmable only The memory (4) is read and the pressed key (12) is detected.

Description

technical field [0001] The present invention relates to an input device or a remote control device equipped with a key input device that detects any one of a plurality of keys that is pressed and outputs key data corresponding to the key. A key input device and a remote control transmitter equipped with a key input device that execute these operations by a microcomputer included in the key input device using a control program written in a PROM). Background technique [0002] Key input devices are provided in devices that perform various actions in response to input operations. The key input device has a keyboard switching unit composed of a plurality of keys, and outputs key data corresponding to any one of the pressed keys. Among them, for the keyboard conversion part, there is the following well-known keyboard conversion part (for example, refer to Patent Document 1): because it is such a simple one that only arranges the keys whose movable electrodes are opposite to the ...

AI Technical Summary

Problems solved by technology

[0013] On the other hand, for this mask ROM, there is a lack of versatility, that is, it cannot be adapted to the specifications of different key input devices for programming after manufacture. If the same key input device cannot be mass-produced, it cannot be effectively cut costs

In addition, since it takes a long time to manufacture the mask ROM for storing the control program, it is impossible to manufacture a key input device conforming to specific specifications in a short time

[0014] Therefore, even if the keyboard conversion part 101 having the above-mentioned versatility is adopted, in the whole key input device constituted by the key data output mechanism, it is impossible to correspond to the change of the number of keys of the keyboard conversion part 101 or the change of the output key data. transformation, so that it cannot be made into a universal device

[0015] Moreover, when manufacturing a key input device of a new standard, it takes a long time to manufacture a mask ROM for storing a control program conforming to the standard, so it cannot be manufactured in a short time.

[0016] In addition, when the key input device described above is used as the key input device of the remote control transmitter, even if the key layout of the keyboard conversion part 101 is the same, since the operation control data of each controlled device is different, it is necessary to manufacture and accommodate The corresponding new control program read-only memory, so not only cannot manufacture in a short time, but also increases the inventory of remote control transmitters of each controlled equipment, which becomes the cause of cost increase

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