JPH0377217A - Back lighted push-button switch - Google Patents

Abstract

PURPOSE:To make a display easily understandable by a constitution wherein a display window is divided in two parts, one of which lights up with a answer- back signal from an operating end, the other of which lights up with an output condition of a logical add of the above signal and an output answer back signal. CONSTITUTION:The switch display portion of a CRT screen 1 is made up of an answer back display portion 3 which lights up directly upon an answer back signal 6 sent from an operating end 7 and an operating output signal display portion 4 which lights up with the result of a logical add of an operating output signal 5 and the signal 6. At an operating time 11, a display portion 4 lights up upon receipt of the signal 5 from CPU to confirm that the operation is received. As the signal 5 is one shot, the light is extinguished in the case 12 where the signal 6 is not received. Thereafter, when the signal 6 reaches 13, both the display portions 3, 4 light up by means of a circuit 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to an illuminated pushbutton switch for operating a keyboard or the like for a CRT display device.

(Prior art) Conventional illuminated pushbutton switches used as switches to operate status signals have a built-in display lamp, and the operation commands (contacts) output when the switch is pressed are output to the operating end. The lamp on the switch lights up in response to a signal confirming that the switch is working correctly. The function of this illuminated pushbutton switch is configured by a CRT display device such as a computer and a keyboard.

An operation command is output by operating a keyboard, etc., and a confirmation signal lights up the display window in the CRT, but computers generally have a scanning cycle, which is the period of time required for the CPU to perform a series of processes. For,
If the operation by the operator to issue an output command using a keyboard or the like is too short and the operator's operation has finished by the time the CPU attempts to execute the keyboard input process, the CPU will not be able to issue the operation command. In such a case, the operator does not know whether the operation has been received or not, causing inconveniences such as continuing to operate it longer than necessary, or not operating even after operation.

Another conventional method is to divide the display area of the display window in the CRT into two parts, one side lights up in response to a confirmation signal from the operating end, and the other side displays the output from the CPU that indicates that the CPU has reliably received the operating command and outputs it. It lights up with a confirmation signal, and the operator uses the CPU
The operation can be stopped when the output answerback (confirmation signal) is lit.

However, in general, with illuminated pushbuttons, the display is clearly communicated to the observer by lighting up the entire switch, but since the output answerback from the CPU is a one-shot signal, the part displayed by this signal is the operation output. The switch lights up only at the moment it appears, and for this reason, it is not possible to light up the entire display window by answering back from the operating end, and there is a problem that the switch display is unbalanced and difficult to monitor.

(Problem to be Solved by the Invention) A push button that simultaneously displays a CPtJ answerback indicating that the CPU has received and outputs a status signal, and lights up the entire switch display window for easy-to-understand display. Provision of a switch is desired.

The present invention provides an illuminated pushbutton switch that accepts an operator's operation, displays a CPU output answerback indicating that the output has been reliably output, and further lights up the entire switch display window with an answerback from the operating end. do.

[Structure of the invention]

(Means for solving problems) The present invention divides the display area within the display window into two.

One is turned on by the answerback signal from the operation end, and the other is turned on under the output condition of the logical sum of the answerback signal from this operation end and the output answerback signal from the CPU that is output by the CPU after receiving the operation command. It is an illuminated pushbutton switch.

(Function) During operation, the output answerback signal from the CPU becomes active, and the output of the logical sum becomes active, thereby displaying one part, and the operator confirms this and stops the operation. It is possible.

After this, when the answer back signal from the operating end becomes active, this signal becomes the lighting condition for the two parts, so
Lights up the entire display window.

(Embodiment) Next, an embodiment of the present invention will be described.The first @ is an answerback display section 3 that lights up in response to an answerback signal 6 from the operation end 7, and an operation output signal 5 from the answerback display section 3. and an answerback signal 6, and an illuminated pushbutton switch comprising an OR circuit 2 that is activated by the OR of the OR circuit 2, and an operation output signal display section 4 that lights up in response to the output signal 2a of the OR circuit 2.

That is, FIG. 1 is an overall configuration diagram of this embodiment, and the CRT
The switch display section of the screen 1 is composed of two parts: an answerback display section 3 and an operation output signal display section 4.

The answerback display section 3 is directly lit by the answerback signal 6 from the operation end 7, and the operation output signal display section 4 takes the logical sum of the operation output signal 5 and the operation end answerback signal 6 using the OR circuit 2. Lights up depending on the result.

FIG. 2 shows this embodiment with such a configuration.

FIG. 6 is a transition diagram showing the lighting state of the display window when operated by an operator. 11 indicates the time of operation, and the switch display section indicates the CPU
The operation output display section 4 is displayed in response to the operation output answer back 5 from the operator, and the operator confirms that the operation has been accepted. Since the operation output signal 5 is a one-shot signal (on for a short time), if the answer back signal 6 from the operation end 7 has not arrived, the switch display window will be unlit again. After that, when the answer back signal 6 from the operation end arrives,
The answer display section 3 and the operation output display section are simultaneously turned on by the OR circuit 2, and as a result, the entire switch display window is turned on. 12 indicates that the answer has not been reached, and 13 indicates that the answer has been reached.

〔Effect of the invention〕

As detailed above, according to the present invention, during operation, the CP
It can be confirmed that the U has received and outputted the operation command by lighting up the output display section, and when the answer back signal from the operation end is activated, not only the answer display section but also the operation output display section is displayed. The entire switch display section can be lit, providing an easy-to-understand display.

[Brief explanation of drawings]

FIG. 1 is a diagram illustrating the constituent countries of an illuminated pushbutton inch according to an embodiment of the present invention, and FIG. 2 is a flowchart showing the transition of the lighting state of the display window. 2... OR circuit 3... Answer back display section 4... Operation output display section 5... Operation output signal 7...
・Operation end

Claims (1)

[Claims] a first display section that lights up in response to a confirmation signal from the operating end; an OR circuit that operates based on the logical sum of the operation output signal from the first display section and the confirmation signal; An illuminated pushbutton switch comprising a second display section that lights up.