JPS6168625A - Keyboard device - Google Patents

Abstract

PURPOSE:To increase an operation speed and to reduce wrong keying by adding a circuit which specifies a shift mode from a high-order device to a keyboard. CONSTITUTION:The keyboard consists of a keyboard switch 1 such as a general key 1-1, an encoder and strobe generating circuit 2, a driver and receiver circuit 3 including a driver circuit for a data code and a strobe and a signal receiver for a signal from the high-order device 4, a shift specification selecting AND circuit 5 which invalidates mode specification from said switch 1, a shift specifying OR circuit 6, and a shift mode specifying storage circuit 7. Consequently, the shift specification on the keyboard is performed not by an operator, but by the high-order device 4, and a shift specification inhibiting signal is inputted to said AND circuit 5 to make the shift specifying signal 105 from the keyboard ineffective. Further, the shift specification is stored in said storage circuit 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a keyboard for a data processing device, and particularly to a control method for a keyboard shift mode.

[Conventional technology]

When inputting data from a keyboard, when operating alphanumeric, alphanumeric, kana, and kana symbol shift keys, it is difficult to perform routine operations in which a certain number of keys are pressed in a certain order. Happens in the morning. For example, if there is a routine operation that sequentially operates on 5 alphanumeric characters, 1 alphanumeric character, 3 alphanumeric characters, and 1 alphanumeric character, output alphanumeric shift specification, input 5 alphanumeric characters; alphanumeric shift specification output,
It was necessary to input one alphanumeric character, output an alphanumeric shift designation, input three alphanumeric characters, output an alphanumeric shift designation, and input one alphanumeric character. That is, with conventional keyboards, even during routine operations, it is necessary to press alphanumeric, alphanumeric, kana, and kana symbol mode shift keys to shift the keyboard to a shift mode.

[Problem that the invention seeks to solve]

As described above, since the mode shift key is frequently used even in routine operations, it takes time to operate, which not only does not increase the operation speed but also has the disadvantage of causing erroneous presses.

An object of the present invention is to reduce the number of times a keyboard operator of a data processing device must press the mode shift key by specifying a shift mode from a host device when performing routine operations, thereby improving operation speed. An object of the present invention is to provide a keyboard device that is less prone to erroneous typing.

[Means for solving problems]

In the keyboard device of the present invention, program function keys are assigned to general keys, and routine mode shift control can be performed using these keys. While this control is being performed, a mode shift key is designated from the host device, and even if the mode shift key on the keyboard is operated, the designation signal is invalidated.

That is, the present invention provides a keyboard including a large number of partial keys and a plurality of mode shift keys, an encoder circuit that encodes data output by the -a key, and an encoder circuit that inputs the output of the encoder circuit to a host device. In a keyboard device comprising a circuit means and a mode storage circuit for storing mode designation signals for each of the mode shift keys, a part of the general keys are assigned to program function keys, and each of the program function keys has a fixed type. circuit means for receiving a mode shift control signal from a host device in which a preprogrammed state for mode shifting is set; and means for inputting a mode control signal obtained by the output of the circuit means to the mode storage circuit; The present invention is characterized by comprising circuit means for disabling the output of the mode shift key according to control from a host device.

[For production]

To prevent confusion between a keyboard shift mode control method in which routine operations in which the order of mode shifts is determined are controlled by data from a host device, and the conventional mode shift specifying operation by manual operation of the mode shift key. An AND circuit is provided in the controller to invalidate the designation signal even if the mode shift key is erroneously operated while the host device is designating the mode shift.

〔Example〕

The present invention will be explained in detail with reference to the drawings.

The figure is a block configuration diagram of a keyboard showing an embodiment of the present invention. This keyboard includes a keyboard switch 11 including some keys 1-1 and a mode shift key 1-2, an encoder and strobe generation circuit 2, a driver and receiver circuit 3 including a data code/strobe driver circuit and a signal receiver circuit from a host device 4. , host device 4
Shift designation selection AND circuit 5 that invalidates the mode designation from keyboard switch 1 if there is a mode designation from keyboard switch 1
, a shift designation OR circuit 6 for validating either a shift designation from the host device 4 or a shift designation from the keyboard switch 1, and a shift mode designation storage circuit 7.

Next, the details of the operation will be explained with reference to the drawings.

- If the C key 1-1 is not pressed, the key switch signal 101 is input to the encoder and strobe generation circuit 2. When this key switch signal 101 is encoded together with the shift state signal 10, it immediately generates a strobe signal, which is input to the driver and receiver circuit 3 via the data line 102. The encoded data and strobe signal amplified by the driver and receiver circuit 3 are sent to the host device 4 via the data line 103.

In the case of partial shift mode specification, if mode shift keys 1-2 of keyboard switch 1 cannot be pressed, this switch signal 105 is activated by a shift specification selection AND circuit that selects whether or not to enable the shift specification from keyboard switch 1. 5 is input.

If there is no shift designation from the host device 4, the logical product of the signal 107 and the shift designation signal 105 from the mode shift key 1-2 is taken, and this output signal is input to the shift designation OR circuit 6. When the shift designation from the mode shift key 1-2 is valid, there is no shift designation from the host device 4, so the shift designation from the mode shift key 1-2 is input to the shift mode designation storage circuit 7, and each shift Mode designation is remembered. This state is input to the encoder and strobe generation circuit 2 via the signal line 108, and is used to control the encoding of the key switch signal 101 by the general key.

Next, an explanation will be given of the operation when a shift designation is made from the host device 4.

When performing standard keyboard operations, the operator should press the program function key assigned to general key 1-1. , and notifies the host device 4 of the victory of the four works through the above-mentioned route. The host device 4 determines the type of routine operation and sends the level signal and code data specifying the shift mode to the signal lines 103 and 10 in the order requested by the operator.
4 to the driver and receiver circuit 3. For example, if you want to input data of 5 alphanumeric characters, 1 alphanumeric character, 3 alphanumeric characters, and 1 alphanumeric character using a standard operation like the one in the previous example, input alphanumeric shift I fixed output, 5 alphanumeric characters, etc. Character input; English symbol shift specification output, English symbol 1
Alphanumeric shift designation output, 3 alphanumeric characters input; Alphabetic symbol shift designation output, 1 alphanumeric character input; Data line 1 in the order of canceling the shift designation prohibition signal from key switch 1
Code data and level signals are transmitted and received on 03 and 104.

In this way, the operator does not specify the keyboard shift,
The host device 4 can perform this. In other words, the host device 4
The shift designation prohibition signal from the mode shift key 1-2 is input to the reshift designation selection AND circuit 5 via the signal '1a104, the driver and receiver circuit 3, and the signal line 107, and is input to the reshift designation selection AND circuit 5 via the signal '1a104' and the driver and receiver circuit 3.
The shift designation signal 105 from -2 is invalidated.

Further, the shift designation signal 106 is input to the shift designation OR circuit 6. On the other hand, since the shift designation signal 105 from the mode shift key 1-2 of the keyboard is disabled, the shift designation from the host device 4 is input to the shift mode designation storage circuit 7 and stored. .

Output signal 108 from this shift mode designation storage circuit 7
is input to the encoder and strobe circuit 2, and used for encoding control of a general key switch signal 101 when a data key is pressed. A signal is added to the end of the data on the signal pads 103 and 104 to cancel the prohibition of shift specification by the keyboard switch from the host device 4, but this makes the subsequent shift specification from the mode shift keys 1-2 valid. become.

〔Effect of the invention〕

As explained above, the present invention can reduce the number of times the operator presses the mode shift key by adding a circuit to the keyboard that can specify the shift mode from the host device. This has the effect of improving operation speed and reducing the possibility of mis-typing.

[Brief explanation of the drawing]

The figure is a block diagram of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Keyboard switch, 1-1... General key, 1-2... Mode shift key, 2... Encoder and strobe generation circuit, 3... Driver and receiver circuit, 4... Host device , 5... Shift specification selection ant circuit, 6... Shift specification OR circuit, 7...
Shift mode specification memory circuit.

Claims (1)

[Claims] (1) a keyboard equipped with a large number of general keys and a plurality of mode shift keys; an encoder circuit that encodes data output by the general keys; and circuit means for inputting the output of the encoder circuit to a host device; In a keyboard device equipped with a mode designation storage circuit that stores mode designation signals for each of the mode shift keys, some of the above general keys are assigned to program function keys, and each of the program function keys has a typical mode shift key stored in advance. circuit means in which a programmed state is set and receives a mode shift control signal from the host device; means for inputting the mode control signal obtained by the output of the circuit means into the mode storage circuit; A keyboard device comprising circuit means for disabling the output of the mode shift key according to control.