JPH0757340A - Operation switch device - Google Patents

Abstract

PURPOSE:To prevent a malfunction when an equipment main body is put into a bag, etc., by enabling a prescribed operation of the equipment main body to be controlled with a push-button operation switch only when a finger of the human body is touched to a first electrode and a second electrode simultaneously and operated. CONSTITUTION:First of all, whether or not an input is performed from a detection means 10 is confirmed by a control means 3, and when the input is performed, a display means 11a is lighted. Then, for instance, when a period of the input of the detection means 3 is within three seconds, the presence of the operation of any push-button operation switches 2a-2d of a tape push- button operation switches group 2 is judged. Then, when the presence of the operation is judged, a tape driving means 14 is controlled by the control means 3, and a mechanism 15 is switched to the function operation according to the operation of the push-button operation switches 2a-2d, and the operation control is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation switch device used in an electronic device such as a tape recorder which operates by using electric means, and more particularly to two devices for detecting conduction of a human body finger in the device body. The present invention relates to an operation switch device which can be operated only by being touched by a finger of a human body by providing an electrode and a detection means.

[0002]

2. Description of the Related Art In recent years, as an operation switch device used in electronic equipment such as a tape recorder, an operation switch device which operates its operation by using an electric means has been used, and various holding means have been proposed to prevent malfunction thereof. As one example, in tape recorders, hold means using a hold switch is generalized.

An example of an operation switch device having the above-mentioned conventional holding means will be described below with reference to the drawings. FIG. 5 is a block diagram of a tape recorder using a conventional operation switch device. In FIG. 5, 1 is a device main body, 2 is an operation switch group for the functional operation of the tape recorder, 2a is a reproduction operation switch for starting reproduction and reverse reproduction, and 2b is a stop switch for stopping the set. 2c is an FF operation switch, 2d
Is a REW operation switch for performing fast forward or rewind operation, respectively.

Reference numeral 14 is a tape driving means, 15 is a mechanism, 16 is a reproducing head, 17 is a preamplifier for inputting and amplifying a signal from the head 16 during tape reproduction, and 18 is a frequency characteristic of a signal to which an output signal of the preamplifier 17 is input. Alternatively, a sound quality control means for processing a reverberation component or the like, 19 is a sound volume control means for adjusting the signal level with the output of the sound quality control means 18 as an input, and 20 is an output with the output of the sound volume control means 19 for performing power amplification. It is a power amplifier.

4 is a connector (jack / plug),
A headphone cord 4 connected to the headphone 6 in order to supply the output of the power amplifier 20 to the headphone 6.
And the device body 1 are connected to each other. Reference numeral 3 is a control means composed of a microcomputer or the like, which controls the tape drive means 14 and the power supply control means 13 of the preamplifier 17 and the power amplifier 20 according to the input from the tape operation switch group 2 or the output of the hold switch 7. It controls the above. Reference numeral 12 is a power source of the device body 1.

The control means 3 is provided with a play, stop, FF,
Each operation switch 2a to 2 for operating the REW functional operation
A control command is input from d and the hold switch 7. When the control command of the hold switch 7 is input to the control means 3, the control means 3 is configured to perform a control to prohibit the operation of the operation switches 2a to 2d. When the hold switch 7 is turned on, the operation of each of the operation switches 2a to 2d is prohibited so that the device main body does not malfunction even if it is placed in a bag or the like.

[0007]

However, in the conventional operation switch device as described above, a malfunction cannot be prevented unless a person consciously operates the hold switch 7, and therefore, the operation of the hold switch is often forgotten. Therefore, there is a problem that the operation switch is arbitrarily operated in a bag or the like and the battery is consumed more than necessary.

In view of the above-mentioned conventional problems, the present invention has been made for the purpose of providing an operation switch device which does not require a holding means operated by a person consciously and can be operated in conjunction with the operation of an apparatus. is there.

[0009]

In order to solve the above-mentioned problems, an operation switch device of the present invention is provided with a push button operation switch for controlling the functional operation of a device body and a push button operation portion of this push button operation switch. A first electrode, an insulator electrically separating the periphery of the first electrode, a second electrode provided around the insulator, and a finger of the human body at the same time between the first electrode and the second electrode. A detection means for detecting conduction by utilizing a change in contact resistance value when touched, and a control means for controlling a predetermined functional operation of the device body based on a signal detected by the detection means, It is configured such that the predetermined operation control of the device body can be performed by the push button operation switch only when the finger of the human body touches the first electrode and the second electrode at the same time.

[0010]

According to the present invention, with the above-described structure, even if the switch corresponding to each operation control of the device body is pushed by an object having a contact resistance value or more when a finger of a human body touches, the operation continues to be prohibited. It is possible to prevent malfunctions when the device body is put in a bag or the like. Further, it is possible to confirm the release of the operation of the switch corresponding to each operation control by the display means which is provided when the detecting means detects the conduction provided in the main body of the device.

[0011]

Embodiments of the operation switch device of the present invention will be described in detail below with reference to FIGS. FIG. 1 is a block diagram of a tape recorder using an operation switch device according to an embodiment of the present invention, and the same names as those in FIG. 5 showing the conventional example described above are denoted by the same reference numerals.

In FIG. 1, the device body 1 has a first electrode 8 provided in the push button operating portion of the push button operating switch 2 in place of the hold switch 7 of the conventional example, and an insulator (described later) interposed around the first electrode 8. The second electrode 9 provided in the same manner, the detecting means 10 for detecting conduction between the first electrode and the second electrode by utilizing the change of the contact resistance value when the finger of the human body touches at the same time, The display means 11 is provided for displaying the contact state and the like when the finger of the human body simultaneously touches between the first electrode and the second electrode. Here, the first electrode 8 and the second electrode 9 are connected to the detection means 10, and when the detection means 10 detects the conduction between the first electrode 8 and the second electrode 9, the detection signal is output to the control means 3. To do. Further, the display means 11 is capable of lighting the indicators 11a and 11b composed of LEDs or the like, is connected to the control means 3, and when the finger of the human body touches between the first electrode and the second electrode at the same time. The display 11a is turned on, and the display 11b is turned on when the functional operation of the device body 1 is in operation.

The control means 3 controls the tape drive means 14, the power supply control means 12 and the display means 11 in accordance with inputs from the push button operation switch group 2 and the detection means 10. Here, the push button operation switches 2a to 2d for performing the operation of controlling the functional operation of the device body 1 are provided with the first electrodes 8a to 8d in the push button operation portion, and are selected from the first electrodes 8a to 8d. When the pushbutton operating switches 2a to 2d corresponding to the first electrodes 8a to 8d touched by the finger are pressed with the finger touching the object and the second electrode 9, the device operated by the pushbutton operating switch The operation of a predetermined function of the main body 1 can be controlled.

Next, description will be made with reference to FIGS.
FIG. 2 is an external perspective view of a portable type tape recorder provided with the operation switch device of the present invention, and FIG. 3 is a sectional view taken along line AA in FIG. FIG. 2 shows the appearance of the device main body 1, which includes first electrodes 8a to 8d forming a push button of the push button operation switch 2, a second electrode 9, and an insulator 21 interposed therebetween, and a display. The example of the concrete arrangement structure of the containers 11a and 11b is shown. Here, 8a is a first electrode constituting a push button of the reproduction push button operation switch 2a, 8b is a first electrode constituting a stop push button operation switch 2b,
Reference numeral 8c constitutes a first electrode which constitutes a push button of the push button operation switch 2c for FF, and 8d constitutes a first electrode which constitutes a push button of the push button operation switch 2d for REW.

As shown in FIG. 3, the first electrodes 8a to 8d are provided with a first electrode 8 constituting a push button on each push button operating switch 2 and an insulator 21 on the outer periphery thereof.
And a second electrode 9 is further formed on the outer periphery of the first electrode.
The electrode 8 and the second electrode 9 are electrically separated by an insulator 21. The first electrode 8 has a convex portion, and each push button operation switch 2a can be pressed by pushing with a finger.
It has a movable structure for operating ~ 2d.

The operation of the push button operation switch device constructed as described above will be described below with reference to the control flowchart shown in FIG. First, the control means 3 confirms whether or not there is an input from the detection means 10 (step 1), and when there is an input, the display means 11a is turned on (step 2). If there is no input here, step 1 again
The input of the return detecting means 3 is confirmed. Next, in step 3, when the input of the detection means 3 has passed for 3 seconds or more, the display means 11a is turned off (step 6), and the process returns to step 1 to confirm the input of the detection means 3 again. When the input of the detecting means 3 is less than 3 seconds in step 3, the process proceeds to step 4 and one of the push button operating switches 2 in the tape push button operating switch group 2 is pressed.
Whether or not the operations a to 2d are performed is determined. If it is determined in step 4 that there is an operation, the process proceeds to step 5 in which the control means 3 controls the tape drive means 14 to switch the mechanism 15 to a functional operation corresponding to the operation of the push button operation switches 2a to 2d. Control its operation. In step 4, if none of the push button operation switches 2a to 2d of the tape push button operation switch group 2 is operated, the operation returns to step 1 and the input of the detection means 3 is confirmed. During operation in step 5, the display means 11b is turned on.

As described above, according to this embodiment, the device main body is provided with the two electrodes 8 and 9 and the detecting means 10 for detecting the conduction of the finger of the human body, and the control means 3 controls the human body. A tape recorder that does not require a holding means to operate can be provided. Further, since the device body is provided with the display means 11,
If there is continuity when operated with a finger, it lights up, and it is possible to confirm hold release.

Further, even if the two electrodes are made conductive with each other by a metal material, if the display means 11 is turned off and the holding state is automatically maintained for 3 seconds or more, the consumption of the battery can be suppressed. In the above description, the tape recorder has been described as an example, but the invention can also be applied to an electronic device that operates by using other electric means.

[0019]

As described above, according to the present invention, the push button operation switch for controlling the functional operation of the device body, the first electrode provided in the push button operation portion of the push button operation switch, and the first electrode An insulator that electrically isolates the surroundings, a second electrode provided around the insulator, and a change in contact resistance value when a finger of the human body touches the first electrode and the second electrode at the same time. A detection means for detecting the continuity by utilizing the detection means and a control means for controlling a predetermined functional operation of the device main body based on a signal detected by the detection means are provided, and the first electrode and the second electrode are provided with a human body at the same time. Since it is configured to enable the predetermined operation control of the device body with the push button operation switch only when it is touched with a finger, if the device body is put in a bag or the like and carried around, it moves without permission and the battery runs out Disappeared Hold means for manipulating the heart and human can provide unwanted tape recorder.

[Brief description of drawings]

FIG. 1 is a block diagram of a tape recorder using a push button operation switch device according to an embodiment of the present invention.

FIG. 2 is a perspective view of the main body of the tape recorder in the same embodiment.

3 is a sectional view taken along line AA in FIG.

FIG. 4 is a control flowchart of the same.

FIG. 5 is a block diagram of a tape recorder using a conventional push button operation switch device.

[Explanation of symbols]

 1 Device Main Body 2 Push Button Operation Switch Group 2a to 2d Push Button Operation Switch 3 Control Means 8, 8a to 8d First Electrode 9 Second Electrode 10 Detection Means 11 Display Means 21 Insulator

Claims (5)

[Claims] 1. A push-button operating switch for controlling the functional operation of a device body, a first electrode provided in a push-button operating portion of the push-button operating switch, and an insulation for electrically isolating the periphery of the first electrode. Object and a second object provided around the insulator
An electrode, a detection means for detecting conduction between the first electrode and the second electrode by utilizing a change in contact resistance value when a finger of a human body touches them at the same time, and based on a signal detected by the detection means, A control means for controlling a predetermined functional operation of the device body is provided, and a predetermined operation control of the device body by the push button operation switch is possible only when the first electrode and the second electrode are operated by being touched by a finger of a human body at the same time. An operation switch device characterized by being configured as follows. 2. A plurality of push button operation switches provided to control a plurality of functional operations of the device body, a plurality of first electrodes provided corresponding to the plurality of push button operation switches, and a plurality of the plurality of first electrodes. A second electrode, which is a common electrode of the first electrode, is provided, and a plurality of predetermined functional operation controls corresponding to the pressing operation of the push button operation switch corresponding to the touched first electrode are performed. 1. The operation switch device according to 1. 3. The functional operation of the device main body includes the first electrode and the second electrode.
The electrode conduction detection is configured to be started at the same time as or when a pushbutton operation switch corresponding to each operation control of the device body is pressed, or when the switch is operated. Operation switch device. 4. A display means for displaying the contact state of the electrodes is provided on the main body of the apparatus, and when the detecting means detects the conduction between the first electrode and the second electrode, the control means outputs the contact state display command signal, The operation switch device according to claim 1, wherein the operation switch device is configured to perform display by a display means. 5. The control means is configured to perform a control to prohibit the operation of the operation switch corresponding to each operation control of the device body when the detection of the conduction state of the first electrode and the second electrode continues for a predetermined time or more. The operation switch device according to claim 1, wherein: