JPS62174821A - Keyboard - Google Patents

Abstract

PURPOSE:To improve the efficiency of a key operation without being bothered by keys unnecessary for work by replacing a detachable part corresponding to work. CONSTITUTION:When a key in the detachable part 2 at the intersections a1 and b6 of a drive line a1 and a receive line b6 is depressed, a scan pulse returns to an encoder 7 through the receive line b6 at the timing when a scan pulse is transmitted to the drive line a1 from a scan pulse generator 3. When a key at intersections a4 and b1 is depressed, a scan pulse returns from the receive line b1 the moment the scan pulse a4 is transmitted. The encoder 7 detects the coincidence of the return signal of the scan pulse with the scan pulse from the scan pulse generator 3, and recognizes the position of the key depressed. An ID identifier 9 recognizes the identification number of the detachable part 2, and can identify the state of an ID setting switch up to eight levels (000)2-(111)2.

Description

[Detailed Description of the Invention] [Field of Application] The present invention relates to a keyboard for a multifunctional workstation, and more particularly, to a keyboard that can easily configure a keyboard suitable for the purpose of use of the workstation and for business. .

[Conventional technology]

For a certain purpose, the function of mantissa was assigned to one key. , to approve the overlaid page and select one of the tomb number functions. However, these input devices are only available when a large number of keys are required for the same task, and no consideration has been given to constructing a small keyboard that can be used for different types of tasks.

[Stubbornness while the invention tries to solve the problem]

The above conventional technology is unsatisfactory because keyboards have become larger and are made up of a large number of keys corresponding to multiple functions, and some keys are unnecessary from the perspective of specific tasks.
Therefore, it is an object of the present invention to provide a compact keyboard suitable for business use.

[Means for solving problems]

The above purpose is to configure the keyboard with a basic part that has no keys, and a detachable part that can be removed from the basic part, and the detachable part has multiple detachable parts corresponding to the business. Prepare,
This is achieved by selecting one of the removable parts and connecting it to the basic part to construct a compact keyboard with necessary and sufficient keys suitable for business use.

[Effect]

The removable part is removable from the base part, and operates to send out its own identification number and pressed key address. As a result, the base unit can recognize the type of removable unit and the pressed key, so it can recognize the removable unit keys as extended keys compared to the keys on the base unit, so it is easy to create a different small keyboard by replacing the removable unit. It can be configured as follows.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

The basic part 1 and the detachable part 2 are connected through a connector 5 and have a detachable structure. The scan pulse generator 3 of the basic unit 1 is a scan pulse generator that lights α4 from the drive line aj and generates scanning pulses having a phase difference in order of ++@.

A key contact point 4 is arranged at the intersection of the drive line α and the receive line b, and when the key is pressed, the key point 4 is in a connected state, and when it is not pressed, it is in a disconnected state. FIG. 2 shows the relationship between the key contact 4, drive line a, and receive line b. receive line b
1 to b6 are connected to an encoder 7 through a receiving circuit 6.

Now, when the key in the removable part 2 of al and b6, which is the intersection of the drive line a1 and the receive line b6, is pressed,
A scan pulse is returned to the encoder 7 from the scan pulse generator 3 through the receive line b6 at the timing when the scan pulse was sent to the drive line a1. Similarly eL4. When the bl key is pressed, the scan pulse is returned from the receive line b1 at the time when the scan pulse a4 is sent out. The encoder 7 recognizes the position of the pressed key by detecting a match between the return signal of the scan pulse and the scan pulse from the scan pulse generator 3.

111, the il distinguisher 9 recognizes the isobetsu number of the detachable part 2, and identifies the status of the ID setting switch provided in the detachable part 2 up to 8 points from (OOO) w to (111) t. do.

FIG. 3 shows a practical example of a mechanism for attaching and detaching the basic part 1 and the detachable part 2, in which the base part 1 and the detachable part 2 are attached and detached by means of a screw 108 and a screw seat 11. 4-way close reading between the basic part 1 and the detachable part 2 is performed by a connector 5 (not shown).

[Original side effect]

According to the present invention, by replacing the removable part 2 corresponding to the job (C), it is possible to configure a small keyboard with enough keys for the writer, without having to worry about keys unnecessary for the job. , the efficiency of key operation can be measured.

[Brief explanation of drawings]

FIG. 1 is a 1072 diagram of an embodiment of the present invention, FIG. 2 is a circuit diagram of the key contact portion of FIG. 1, and FIG.
FIG. 3 is a perspective view showing an embodiment of the viewing mechanism. DESCRIPTION OF SYMBOLS 1... Basic part, 2... Detachable part, 3... Scan pulse generator, 4... Key contact, 5... Connector, 6
...Receiving circuit, 7...Encoder, 8...ID setting switch, 9...■D identifier, a1 to a4...Drive line. Figure 2 Figure 3

Claims (1)

[Claims] 1. The keyboard is composed of a basic part and a detachable part, and the detachable part is equipped with a means for sending its own identification number to the basic part and a means for sending the position of a pressed key. A keyboard characterized in that different types of detachable parts can be connected and changed to one basic part.