JPS61826A - Input indicating device - Google Patents

Abstract

PURPOSE:To reduce the thickness of a cable through which data is transferred to a host device by transferring the signals supplied from a keyboard and a mouth to a transfer buffer and delivering data alternately and serially. CONSTITUTION:A microprocessor 7 receives signals from a timer monitoring circuit 8 and extracts every fixed period of time the data supplied from a keyboard 1 and a mouth 2 which are held by a keyboard buffer 5 and a position detecting circuit 6 respectively for production of a data array. In other words, the key data given from the buffer 5 and switch data SW1 and SW2 of a mouth held by the circuit 6 are extracted for a fixed period of time and sent to a transfer buffer 9 together with a flag of 1 set at the head. While the mouth data is read out of the circuit 6 is another fixed period of time and sent to the buffer 9 together with a flag of 0 set at the head.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an input instruction device, and particularly relates to an input instruction device that uses keyboard data and a mouse signal as input signals. .

(Conventional technology) Conventional Fuji Xerox word processor (801
2J-8TAR) etc., a keyboard 1 and a mouse 2 are used as data input units, as shown in FIG.

As is well known, the keyboard 1 outputs data such as numeric key force, character key force, editing key force, etc.
On the other hand, from mouse 2, (xl.

Indication signals for change points (coordinates) such as YL) and (X2, Y2), or mouse signals such as switch signals SWI and SW2 for instructing change contents are output.

In the figure, 3 indicates data output from the keyboard 1, and 4 indicates a mouse signal output from the mouse 2.

(Problems to be Solved by the Invention) The above-described conventional techniques had the following problems.

That is, conventionally, only one connector is connected to the keyboard 1, and the cable connected to the connector has many signal lines, so there is a problem that the cable is thick.

The present invention has been made to solve the above-mentioned problems.

(Means and Effects for Solving the Problems) In order to solve the above problems, the present invention provides a keyboard buffer that holds signals input from a keyboard, and a position detector that holds signals input from a mouse. means for reading data from the circuit, a timer monitoring circuit, the keyboard buffer and the position detection circuit, and creating a scheduled data array at fixed time intervals under the control of a control signal from the timer monitoring circuit; The device is characterized in that it is equipped with a transfer buffer that holds a data array, and the data transfer cable is made thinner by serially transferring data from the transfer buffer.

(Example) The present invention will be described in detail below with reference to the drawings.

FIG. 2 is a block diagram of one embodiment of the present invention.

Data input from the keyboard 1 is held in the keyboard buffer 5. On the other hand, mouse data input from the mouse 2 is held in the position detection circuit 6. A microprocessor 7 performs signal processing of input data, receives a signal from a timer monitoring circuit 8, extracts the data held in the keyboard buffer 5 and the position detection circuit 6 at regular intervals, and outputs the data held in the keyboard buffer 5 and the position detection circuit 6 at regular intervals. Figures (a) (b)
) create the data array shown in

That is, at a certain fixed time, as shown in FIG. 3(a'), the keyboard data from the keyboard buffer 5 and the mouse switch data SW1 . SW2 and the like are taken out, a flag of "1" is attached to the beginning, and the data is sent to the transfer buffer 9. In addition, at another fixed time, mouse data such as direction-related mouse data and change point coordinates as shown in FIG. 3(b) are read out from the position detection port 6, and is flagged as 0'' and sent to the transfer buffer 9. Transfer of these data to the transfer buffer 9 is performed alternately at the predetermined time intervals.

Transfer buffer? The data temporarily stored in 9 is serially transferred to the host device.

As described above, according to this embodiment, the data output from the transfer buffer 9 is transferred serially, so fewer signal lines are required for data transfer. Therefore, the cable connecting the transfer buffer 9 and the host device can be made thinner.

Additionally, this increases the processing power compared to conventional circuits.
Of course, it does not decrease. In other words, input instructions can be made at the same speed as the conventional device.

(Effects of the Invention) As is clear from the above description, according to the present invention, the following effects are achieved.

(1) The cable used to transfer input data to a host device can be made thinner.

(21) Therefore, the misalignment of wire connections is reduced and the space factor is improved.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram of a conventional device, FIG. 2 is a block diagram of an embodiment of the present invention, and FIG. 3 is an explanatory diagram of serial transfer data. DESCRIPTION OF SYMBOLS 1... Keyboard, 2... Mouse, 5... Keyboard buffer, 6... Position detection circuit, 7... Microprocessor, 8... Timer monitoring circuit, 9... Transfer buffer

Claims (1)

[Claims] (1) Read data from a keyboard buffer that holds signals input from the keyboard, a position detection circuit that holds signals input from the mouse, a timer monitoring circuit, and the keyboard buffer and position detection circuit, and Controlled by a control signal from a timer monitoring circuit, the device includes means for creating a scheduled data array at regular intervals, and a transfer buffer that holds the data array, and serially transfers data from the transfer buffer. An input instruction device characterized in that: