JPS61158638A - Dial setter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] C industrial application field].

The present invention relates to a dial setting device for setting numerical values using a rotary dial, and is applied to various electronic devices such as measuring instruments, timer devices, transceivers, and video tape recorders (VTRs).

[Conventional technology]

Traditionally, various electronic devices have been made smaller and lighter, and have become more multi-functional and high-performance. Up and down switches, IO key switches, rotary dials, etc. were used to set the numbers necessary to accomplish this.

Generally, when setting numerical values using a rotary dial,
Since the set value was changed by one count for each unit rotation angle of the rotary dial, when realizing a multi-digit numerical setting function, it is necessary to consider the setting operability of the lowest digit. Conventionally, when realizing a multi-digit numerical setting function using a rotary dial, In order to perform the above two functions, a switch was used or two rotary dials were provided.

[Problem that the invention seeks to solve]

When implementing a multi-digit numerical value setting function using a rotary dial as described above, it is not possible to use a switch to perform the above two functions or to provide two rotary dials. This was inconvenient in terms of operability and product cost.

Note that setting the numerical values necessary to perform each aim function by increasing or decreasing them by 1 digit using the up and down switches as described above is difficult, for example, when setting the minutes on a clock. , it is necessary to press the amplifier switch or down switch up to 30 times,
The problem was that the operability was extremely poor. Another problem is that a large number of key switches are required to improve the operability of timer reservation using the 10-key switch.

Therefore, in consideration of the above-mentioned problems, the present invention provides a dial setting device with a novel configuration that uses a rotary dial to quickly and easily set the numerical values necessary to perform various functions. The purpose is to provide.

[Means for solving problems]

In order to solve the above-mentioned problems, a dial setting device according to the present invention includes a rotation detection means for detecting the rotation speed of a rotary dial, and a rotation speed of the rotary dial based on a detection output from the rotation detection means. and a setting control means for controlling the setting change value to be changed in accordance with the setting change value for each unit rotation angle of the rotary dial.

[Effect]

In the dial setting device according to the present invention, numerical setting control is performed in accordance with the rotational speed of the rotary dial based on a detection output obtained by detecting the rotational speed of the rotary dial.

〔Example〕

EMBODIMENT OF THE INVENTION Hereinafter, one embodiment of the dial setting device according to the present invention will be described in detail with reference to the drawings.

1st vl! The embodiment shown in FIGS.
As shown in the block diagram of FIG. 1, TR is a motor servo circuit 3. which drives the reel motor 1, capstan motor 2, etc. Signal processing circuit 4 for video signals and audio signals
1 The microcomputer 7 that controls the operation of the display drive circuit 5 or the tuner circuit 6, etc., detects operation command signals from various operation switches 1G arranged on the front panel 110 and the rotational operation state of the rotary dial 20. A rotation detection output signal is supplied.

In this embodiment, a striped metal oil 21 is pasted on the rotary dial 20 in the form of a ring, with the circumference divided into 24 equal parts and painted in black and white alternately. Each detection output of the two optical sensors 22 and 23 that detect the reflected light by the waveform shaping circuit 2
4.25, the waveform is shaped into a square wave and supplied to the microcomputer 7. In addition, each optical sensor 2 mentioned above
In 2.23, photoinverters each consisting of a light emitting diode and a phototransistor are used, and are arranged so as to supply detection outputs with a phase difference of 90° to each of the waveform shaping circuits 24 and 25. has been done.

Then, from each of the optical sensors 22 and 23, 90
The detection output with a phase difference of ° is output from each waveform shaping circuit 24.
．． The microcomputer 7, which is supplied with waveform shaping via the rotary dial 25, adjusts the rotation of the rotary dial 20 based on the detected output waveforms of the optical sensors 22 and 23 when the rotary dial 20 is rotated. The direction and rotational speed are determined as follows, and the rotary dial 2
The motor servo circuit 3. Signal processing circuit 41 Display drive circuit 5
Alternatively, the operation of the tuner circuit 6 and the like is controlled. That is, when the rotary dial 20 is rotated, the microcomputer 7 determines that the level of the output waveform detected by the second optical sensor 23 at the rising change point of the output waveform detected by the first optical sensor 22 is , as shown in FIG. 2A, if it is rHJ, it is determined that the rotary dial 20 has been rotated in the normal direction, and as shown in FIG. 2B, if it is rLJ, it is determined that the rotary dial 20 is
is determined to have been rotated in the opposite direction. Further, the micro combinator 7 utilizes the interval between the rising and changing points of the detected output waveform of the first optical sensor 22 as shown in FIG. 2C when the rotary dial 20 is rotated. By performing time measurement, the above rotary dial 2
Calculate the rotation speed of 0.

Furthermore, in this embodiment, as shown in the front view of FIG. 3, the front panel 110 of the apparatus main body 100 includes a power switch IOA, a rewind operation switch IOB for setting various modes, a playback operation switch 10C, and a fast forward operation switch. Various operation switches 10 such as a switch IOD, a stop operation switch 10E, and a temporary stop operation switch IOF are provided.

Further, the front panel 110 is formed with an insertion slot 111 for installing a tape cassette, and is also provided with a display section 112 for displaying a timer, and furthermore, the sub-panel 120 on the right side of the front is provided with the rotary dial 20. It is being

The display section 112 is configured such that out of all the display contents shown in FIG. 4, only the necessary parts are illuminated according to the operating mode at that time. In the normal state, the operation of the display drive circuit 5 is controlled by the microcomputer 7 so that the upper number Nu displays a real-time counter and the lower number Nd displays the current time. ing.

Further, the sub-panel 120, as shown in FIG.
It is formed to be openable and closable with its lower end as an axis and its upper end tilt forward, and is opened by pressing a push button 113 provided on the front panel 110.

The sub-panel 120 of the front panel 110
The closed part has various operation switches 10a and 10 in the timer set mode and timer reservation mode.
b... are arranged.

Furthermore, in this embodiment, as shown in FIG. 6, the front panel 11O is provided with an input changeover operation switch 103 in a portion closed by an opening/closing lid 114.

In the VTR of this embodiment, the microcomputer 7 performs a so-called JOG playback operation that performs a variable speed playback operation according to the rotational direction and rotational speed of the rotary dial 20.
It is designed to control the operation of the mode and various numerical settings such as timer setting and reception channel precent according to the rotational operation of the rotary dial 20.

When the rotary dial 20 is rotated forward during pre-sent operation of the receive channel, the microcomputer 7 transfers the set value of the receive channel to the rotary dial 20.
Increase the above setting change value for each unit rotation angle, and
When the rotary dial 20 is rotated in the reverse direction, the set value of the receiving channel is decreased by the set change value for each unit rotation angle of the rotary dial 20, and is set in accordance with the rotation speed of the rotary dial 20. While changing the change value, the numerical setting control for the preset of the reception channels is performed. For example, when the rotary dial 20 is rotated at a low speed, one channel at a time according to the direction of rotation of the rotary dial 20. Also, when the rotary dial 20 is being rotated at a medium speed, the channels are increased or decreased by two channels depending on the direction of rotation of the rotary dial 20, and furthermore, when the rotary dial 20 is being rotated at a high speed. At this time, the microcomputer 7 performs numerical setting control for presetting the receiving channels so that the channels are increased or decreased by four channels in accordance with the direction of rotation of the rotary dial 20.

In this way, by automatically changing the setting change value according to the rotational speed of the rotary dial 20, when changing the set numerical value significantly, the rotary dial 20
By operating the rotary dial 20 at high speed, you can increase the change per revolution and quickly change the setting, and when you get close to the target setting, by rotating the rotary dial 20 at low speed, you can change the setting one step at a time. You can change the value and set the value accurately.

Further, when the rotary dial 20 is rotated in the reproduction Bose mode, that is, in the still reproduction state, the microcomputer 7 determines the rotation direction and rotation speed of the rotary dial 20, and determines the rotation direction and rotation speed of the rotary dial 20. According to the rotational direction and rotation speed of the rotary dial 20, a JOG mode operation control for controlling the reproduction system is performed so as to change the reproduction screen.

In the above-mentioned embodiment, the present invention was applied to setting the receiving channel of a VTR, but the dial setting device according to the present invention
It goes without saying that the present invention is not limited to the above-described embodiments, but can also be applied to numerical value settings in various electronic devices such as measuring instruments and timer devices.

〔Effect of the invention〕

As is clear from the description of the embodiments described above, the dial setting device according to the present invention includes a rotation detection means for detecting the rotation speed of the rotary dial, and a rotation detection means for detecting the rotation speed of the rotary dial based on the detection output from the rotation detection means. and a setting control means for controlling the setting change value to be changed in accordance with the speed and changing the setting value by the setting change value for each unit rotation angle of the rotary dial, and a setting control means that controls the setting change value to be changed in accordance with the rotation speed of the rotary dial. Since the settings are controlled, the large number of operation switches and keys that were conventionally required to set various numerical values can be omitted, and numerical values can be set quickly with simple operations. The purpose can be fully achieved.

[Brief explanation of drawings]

1 to 6 show an embodiment in which the present invention is applied to a video tape recorder, FIG. 1 is a block diagram of the video tape recorder of this embodiment, and FIG. 2A,
Fig. 2B and Fig. 2C show the rotation of the rotary dial in the above embodiment! 3. FIG. 3 is a front view of the front panel of the video tape recorder of the above embodiment, and FIG. 4 shows all display contents of the display section provided on the front panel. FIG. 5 is an enlarged perspective view of the main part of the sub-panel provided on the front panel with the sub-panel opened, and FIG. 6 is an enlarged perspective view of the main part of the sub-panel provided on the front panel with the sub-panel opened. It is. 5...Display drive unit 6...Tuner circuit 7...Microcomputer 10...Operation switch 20...Rotary dial 22.23...Optical sensor 110...Front panel 112...・Display section

Claims (1)

[Claims] rotation detection means for detecting the rotation speed of the rotary dial;
A setting for controlling the setting change value to be changed in accordance with the rotational speed of the rotary dial based on the detection output by the rotation detecting means, and changing the set value by the setting change value for each unit rotation angle of the rotary dial. 1. A dial setting device, comprising: a control means, and is configured to perform numerical setting control according to the rotational speed of a rotary dial.