JPH0969990A - Automatic adjusting device for electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a microcomputer in common even for a substrate which has a different circuit to be adjusted by making the microcomputer detect an (a)- point voltage and recognize a circuit included in a signal processing IC. SOLUTION: The microcomputer 30 connects a switch SW1 to a terminal C8 first and detects the voltage value at a point (a). According to the voltage value at the point (a), circuits included in signal processing ICs 16, 24, and 26 are recognized and data of specific bits of the ICs 16, 24, and 26 are varied so that specific voltage values are obtained at measurement points 32a-32g corresponding to the respective circuits.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic adjustment device for electronic equipment, and more particularly to an automatic adjustment device for adjusting a plurality of operating parts (circuits) such as color gain and color tone of a television receiver.

[0002]

2. Description of the Related Art An example of a conventional automatic adjusting device of this type is
Japanese Patent Publication No. Sho 63-2 filed on May 12, 1988
No. 2508 [H04N 5/44, G08C 19
/ 00]. In this conventional technique, data of a predetermined adjustment item (operating part) is preset to the predetermined data by a single operation.

[0003]

However, in such a conventional technique, since the adjustment items are predetermined, it is necessary to reconfigure the program in order to use it for a model having different adjustment items. Therefore, a main object of the present invention is to provide an automatic adjusting device for electronic equipment, which can be shared by a plurality of models having different operating parts.

[0004]

SUMMARY OF THE INVENTION The present invention automatically includes an operating portion of an electronic device including a plurality of operating portions, each of which is adjusted by an adjusting signal, and outputting different determination signals according to different combinations of the operating portions. Which is an automatic adjusting device for adjusting, and an input unit that receives a determination signal output from an electronic device, a recognition unit that recognizes an operating portion included in the electronic device based on the determination signal input to the input unit, and a recognition unit. Is an automatic adjustment device for an electronic device, comprising an adjustment signal output means for outputting an adjustment signal to an operating part according to the recognition result of 1.

[0005]

The input means receives, for example, the voltage value at the reference voltage point as a discrimination signal, and the recognition means recognizes the operating portion based on the discrimination signal, for example, according to a reference table. Then, the adjustment signal output means outputs the adjustment signal to each of the operating parts according to the recognition result.

[0006]

According to the present invention, since the operating portion is recognized by the recognizing means, it can be shared by a plurality of models having different operating portions. The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[0007]

EXAMPLE Referring to FIG. 1, a circuit board 10 of this example.
Includes a main substrate 12. On the main board 12, a microcomputer 14 for controlling the operation of a television receiver (not shown), a signal processing IC 16 and a DC power supply V connected in series between the ground and resistors R1 and R2 are mounted. .
Although not shown, the signal processing IC 16 includes a second AGC (A
Automatic Gain Control) circuit, audio detection level adjustment circuit, video detection level adjustment circuit, tint adjustment circuit and color gain adjustment circuit are included as operating parts (circuits). On the other hand, each of the option boards 20 and 22 has a PIP (Picture in Pictur) as an operating portion (circuit).
e) A signal processing IC 24 including a signal processing circuit (not shown) and a signal processing IC 26 including a MUSE signal processing circuit (not shown) as an operating portion (circuit) are mounted, and the signal processing ICs 16 and 24 are mounted on the adjustment board 28. A microcomputer 30 for adjusting and 26 is mounted. This microcomputer 30 functions as an automatic adjustment device.

Microcomputers 14 and 30 and signal processing IC 1
6, 24 and 26 are connected to each other by a bus 18. In addition, the main board 12 has measurement points 32a to 32e corresponding to the second AGC circuit, the audio detection level adjustment circuit, the video detection level adjustment circuit, the hue adjustment circuit, and the color gain adjustment circuit included in the signal processing IC 16. The option boards 20 and 22 are provided with measurement points 32f and 32g. These measurement points 32a to 32
A voltage value corresponding to a predetermined bit of data of the circuits included in the signal processing ICs 16, 24 and 26 appears in g.
On the other hand, at the connection point (point a) of the resistors R1 and R2, IC
One of the voltage values shown in FIG. 3 appears depending on the type of circuit included in 16, 24 and 26. Measurement points 32a-3
2g is connected to the terminals C1 to C7 on the main board 12, the point a is connected to the terminal C8, and the voltage value given to the terminals C1 to C8 is input to the microcomputer 30 according to the connection state of the switch SW1. It The microcomputer 30 detects this voltage value and changes the data in predetermined bits of the ICs 16, 24 and 26. The voltage value at point a is input to the microcomputer 30 as a determination signal.

The microcomputer 30 processes the flow shown in FIG. 2 to adjust the operating characteristics of the circuits included in the signal processing ICs 16, 24 and 26. That is, first, step S1
Then, the switch SW1 is connected to the terminal C8 to detect the voltage (discrimination signal) at the point a, and then in step S3 the memory 34
IC1 according to the lookup table written in FIG.
The circuits (operating parts) included in 6, 24 and 26 are searched. In this embodiment, the voltage at point a is 4.5V to 5.0.
V, from which the second AGC circuit, audio detection level adjustment circuit, video detection level adjustment circuit, hue adjustment circuit, color gain adjustment circuit, PIP circuit and MUSE circuit are searched as circuits to be adjusted.

Then, one unadjusted circuit is selected from the circuits searched in step S5, and in step S7, data of a predetermined bit is changed so that the voltage or frequency of the circuit becomes a predetermined value. That is, the adjustment signal is given. That is, in step S7, the switch SW1 is switched to
The voltage value of the measurement point corresponding to the circuit selected in step S5 is measured, and the voltage value of the measurement point becomes a predetermined value, that is, the voltage or frequency of the circuit becomes a predetermined value,
The data of a predetermined bit of the signal processing IC including the circuit is changed. It should be noted that each circuit has a unique address, and the microcomputer 30 uses the address data of the circuit related to the adjustment and the change data added as an adjustment signal on the bus 18.
To send through. After that, the changed data is stored in the memory 38 in the microcomputer 14 in step S9.

Then, in step S11, it is determined whether or not the adjustment has been completed for all the operating parts. If "NO", the process returns to step S5, but if "YES", the process ends. By configuring the circuit board 10 in this way, the microcomputer 30 performs signal processing I according to the voltage at point a.
Recognize the combination of circuits contained in C16, 24 and 26. Next, the measurement point 32 corresponding to the circuit related to the adjustment
The voltage of a to 32e is detected and the data of a predetermined bit is changed. The microcomputer 14 receives the changed data,
The television receiver is operated according to this data.

For reference, the operation part is the first AGC.
FIG. 4 shows the configuration of the circuit board 10 in the case of a circuit, an audio detection level adjusting circuit, a video detection level adjusting circuit, a tint adjusting circuit and a color gain adjusting circuit. The respective circuits described above are provided in the signal processing IC 16 ', and the measurement points 32h to 32m corresponding to the respective circuits are provided on the main board 12.
Provided on top. The voltage at point a is set to 0V to 1.9V.

According to this embodiment, the microcomputer for adjusting the operating characteristics recognizes the combination of circuits included in the signal processing IC, detects the voltage value at the measurement point, and detects the data of the circuit corresponding to the measurement point. Therefore, even if the circuit included in the signal processing IC is different, that is, even if the type of substrate is different, the same microcomputer can be shared.

In this embodiment, the combination of adjustment-requiring circuits is recognized according to the voltage value at the point a. However, different codes are output according to the combination of the adjustment-requiring circuits, and the microcomputer based on this code is output. May recognize the combination of the circuits.

[Brief description of drawings]

FIG. 1 is an illustrative view showing one embodiment of the present invention;

FIG. 2 is a flowchart showing a part of the operation of the embodiment in FIG.

FIG. 3 is a comparison table showing a part of the operation of the embodiment in FIG.

FIG. 4 is an illustrative view showing another embodiment of the present invention;

[Explanation of symbols]

 10 ... Substrate 12 ... Main Substrate 14, 30 ... Microcomputer 16, 24, 26 ... Signal Processing IC 34 ... Memory

Claims (2)

[Claims] 1. An automatic adjustment device that automatically adjusts the operation part of an electronic device that includes a plurality of operation parts each adjusted by an adjustment signal, and outputs different determination signals according to different combinations of the operation parts. An input means for receiving a discrimination signal output from the electronic device, a recognition means for recognizing an operating part included in the electronic device based on the discrimination signal input to the input means, and a recognition for the recognition means An automatic adjustment device for an electronic device, comprising an adjustment signal output means for outputting an adjustment signal to the operating part according to a result. 2. The discrimination signal is a voltage signal according to the combination, and the recognizing means includes means for recognizing an operating part included in the electronic device based on the voltage value.
The automatic adjusting device according to claim 1.