JPH0219099A - remote control device - Google Patents

Abstract

PURPOSE:To improve the use of convenience by adjusting an analog quantity through the use of a rotary encoder based on a signal generated from a means detecting the state of contact of the rotary encoder. CONSTITUTION:The contact of the rotary encoder 1 is connected to a contact state detection means 2 and the information representing the direction of rotation and the rotary angle of the rotary encoder 1 is sent to a signal receiver 4 located apart from a signal transmitter 3 as an electric signal. An analog quantity control means 5 increases/decreases the analog quantity data by using a signal received by the signal receiver 4 and its data is outputted to an analog quantity adjustment means 6 to adjust the input analog signal 7. Thus, the convenience of use is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a remote control device for adjusting the volume of a television receiver or the like.

Conventional technology Generally, when adjusting analog volume, for example, the volume of a television receiver, using a remote control device, the control panel is provided with volume up/down buttons, and when the buttons are pressed, the volume gradually increases at a certain speed. The system uses a method in which the button changes to 1, and then stops changing when the button is released at an appropriate point.

Problems to be Solved by the Invention However, with the above operation method, if you want to significantly change an analog value such as volume, it is necessary to hold down a button for a long time, making it difficult to operate quickly.
Since there were problems with the hands, a remote control device that was easier to use was desired.

The present invention solves these conventional problems,
This provides a remote control device that is easier to use.

Means for Solving the Problems In order to achieve the above object, the remote control device of the present invention includes a rotary encoder, a contact state detection means for detecting the state of the contacts of the rotary encoder, and a detection output of the contact state detection means. a signal transmitter that transmits a signal, a signal receiver that receives the transmitted detection output signal, an analog amount adjusting means included in an analog circuit to be controlled, and a signal output from the contact state detecting means. This configuration includes analog amount control means for controlling the analog amount by acting on the analog amount adjustment means.

Function: With the above-described configuration, the present invention detects the state of the rotary encoder corresponding to the operation part by the contact state detection means, and the analog quantity control means changes the analog quantity based on the signal corresponding to the contact state emitted by the rotary encoder. This makes it possible to adjust the analog amount by operating the rotary encoder by acting on the analog amount adjusting means.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention, and 1 is a rotary encoder. The contacts of the rotary encoder 1 are connected to a contact state detection means 2, and information on the rotation direction and rotation angle of the rotary encoder 1 is sent as an electrical signal to a remote signal receiver 4 by a signal transmitter 3. Send.

Based on the signal received by the signal receiver 4, the analog quantity control means 5 increases or decreases the analog quantity data, and outputs the data to the analog quantity adjusting means 6, thereby adjusting the input analog signal 7.

FIG. 2 shows an example of a specific circuit of the main part.

Reference numeral 9.10 denotes contacts of the rotary encoder 1, which are arranged at positions shifted from each other in the rotational direction, and rotate as the rotary shaft is turned, and the contacts are connected and disconnected a number of times proportional to the rotation angle. These are connected to decoder IC11, where 2
Intermittent signals from the two contacts 9 and 10 are converted into signals of the rotation direction and rotation angle of the rotary encoder 1. This signal is transmitted by a signal transmitter 3 to a remote signal receiver 4. The received signal is input to the microcomputer 12. The microcomputer 12 shown here is a so-called one-chip microcomputer having a CPU, ROM, RAM, D/A converter, and input/output section. When the rotary encoder 1 rotates to the right due to CPU processing, the microcomputer 12
The pulse width modulation type D/A converter built into the microcomputer 12 calculates the current volume as a numerical value so that the volume increases in proportion to the rotation angle and similarly decreases when rotated to the left. Output data to . With this D/A converter, as an analog quantity control signal,
The voltage changes rapidly into two values, 5V and Ov, and outputs a digital signal in which the ratio of the time at 5V is proportional to the volume.

This output digital signal becomes a voltage signal smoothed by a smoothing circuit 13 consisting of a capacitor and a resistor.

Based on this voltage signal, the electronic volume 14 controls the amplitude of the input analog signal 7, and outputs the analog signal 8.
Output the results to .

Next, the operation of the microcomputer 12 in the remote control device configured as described above will be explained using the flowchart shown in FIG. When the power of the adjustment device is turned on, the adjustment device operates according to the program shown in the flowchart of FIG. 3 stored in the ROM in the microcomputer 12.

First, if a clockwise rotary encoder signal is input in step 15, the current volume data placed on the RAM is increased by one step in step 16, and then, in step 17, the process waits for a certain period of time.

If the condition of step 17 is not satisfied, if the rotary encoder counterclockwise signal is input in step 18, the current volume data placed on RAI'7i is decreased by one step in step 19, and then step 20 to wait for a certain amount of time.

Thereafter, in step 21, the volume data is output to the D/A converter in the microcomputer 12, even if none of the above conditions are satisfied. Then, the process returns to step 15 and the above process is repeated again. With this configuration, the volume on the receiving side can be adjusted by operating the rotary encoder 1 on the transmitter side.

Effects of the Invention As described above, the remote control device of the present invention uses a rotary encoder to adjust the analog amount.
This realizes an easy-to-use method for manipulating analog quantities, and is extremely advantageous in practice.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a remote control device according to an embodiment of the present invention, FIG. 2 is a circuit diagram of main parts of the embodiment, and FIG. 3 is a flowchart showing an example of a control program. 1...Rotary encoder, 2...
Contact state detection means, 3...Signal transmitter, 4...
. . . Signal receiver, 5 . . . Analog amount control means, 6 . . . Analog amount adjustment means. Name of agent Patent attorney Shigetaka Awano and 1 other person No. 5 - Analog quantity ÷ J again

Claims (1)

[Claims] a rotary encoder, a contact state detection means for detecting the state of the contacts of the rotary encoder, and a signal transmitter for transmitting a detection output signal of the contact state detection means;
a signal receiver that receives the transmitted detection output signal;
It is characterized by comprising an analog amount adjusting means included in an analog circuit to be controlled, and an analog amount controlling means for controlling the analog amount by acting on the analog amount adjusting means based on a signal emitted by the contact state detecting means. remote control device.