JPH0888574A - Adjustment method for electronic apparatus - Google Patents

Abstract

PURPOSE: To provide efficient software of less erroneous operation by discriminating the adjustment mode after power-on to automatically switch the mode to the adjustment mode. CONSTITUTION: When a plug 32 of a commander 26 is connected to a jack 33, a terminal SR of the jack 33 is grounded, and thereby, the adjustment mode is discriminated. Then, an adjustment mode flag is turned on, and average initialization data of each circuit part which is preliminarily written in a partial area of the ROM of a microcomputer 20 is read out. Each circuit part is set based on this data. When the remote control signal generated from a microcomputer 26B of the commander 26 is inputted through a terminal IR of the jack 33, set data of each set is adjusted based on this signal. Adjusted set data of each circuit part is written in a nonvolatile memory 23. Thus, the adjustment mode is discriminated by the microcomputer 20 at the time of power-on by connecting the plug 32 of the commander 26 to the jack 33, and the mode is automatically switched to the adjustment mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of adjusting an electronic device suitable for application to, for example, a television receiver that digitally processes most of signal processing.

[0002]

2. Description of the Related Art A television receiver for digitally processing most of signal processing is constructed, for example, as shown in FIG. In FIG. 1, reference numeral 1 denotes a tuner circuit provided from a tuner to a video detection circuit, from which a composite video signal _SV is obtained.

This video signal S _V is converted into a digital signal by an A / D converter 2 and then supplied to a peaking filter 4 via a comb filter 3 to obtain a digital luminance signal Y _D.
Is obtained. The luminance signal Y _D is supplied to the signal processing circuit 5Y, and is supplied to the matrix circuit 7 which has been subjected to processing such as contrast and converted into an analog luminance signal Y by the D / A converter 6Y.

The output of the comb filter 3 is supplied to the bandpass filter 8 to obtain a digital carrier color signal C _D. The carrier chrominance signal C _D is supplied to the signal processing circuit 5C, ACC, hue, is supplied to the color demodulation circuit 9 after the adjustment of the color saturation or the like is, digital red color difference signal R _D -
Y _D and a blue color difference signal B _D -Y _D are obtained. Then, these color difference signals _{R D -Y D, B D -Y} D is fed is converted respectively D / A converters 6R, analog color difference signals R-Y in 6B, the B-Y to the matrix circuit 7.

[0005] The three primary color signals R, G, and B of red, green, and blue are obtained from a matrix circuit 7, and are added to adders 10R, 10R, respectively.
It is supplied to the white balance and brightness adjustment amplifiers 11R, 11G and 11B via G and 10B, and the outputs of these amplifiers 11R, 11G and 11B are supplied to the color picture tube 13 via the drive amplifiers 12R, 12G and 12B, respectively. Is supplied to.

Further, the composite video signal S _V from the tuner circuit 1 is supplied to a sync separation circuit 14 to obtain a sync pulse, and this sync pulse is supplied to a pulse processing circuit 15H to horizontally output a predetermined pulse width and phase. The synchronizing pulse P _H is supplied to the horizontal output circuit 16H.

A horizontal deflection signal is supplied from the horizontal output circuit 16H to the horizontal deflection coil 17H. Also,
The synchronization pulse obtained from the synchronization separation circuit 14 is
8 is supplied vertical synchronizing pulses obtained, this pulse is supplied to the pulse processing circuit 15V and a predetermined pulse width and phase of the vertical synchronizing pulse P _V, it is supplied to the vertical output circuit 16V. Then, a vertical deflection signal is supplied from the vertical output circuit 16V to the vertical deflection coil 17V.

Reference numeral 19 denotes a microcomputer for selecting a channel (microcomputer), and reference numeral 20 denotes a microcomputer for control. The microcomputer 19 is connected to a rewritable nonvolatile memory 21, the microcomputer 20 is connected to a rewritable nonvolatile memory 23 via a bus 22, and the microcomputer 19 is connected to a key panel 24.

The key panel 24 is provided with a plurality of keys for the user to select a channel or adjust the contrast, brightness, hue and color saturation. Also, memory 2
1 is for storing channel tuning data preset corresponding to the ten keys on the panel 24 and data such as contrast, brightness, hue and color saturation adjusted by the user even when the power is turned off. is there. However, the data such as contrast, brightness, hue, and color saturation are offset values with respect to the standard value (center value), and the standard value is stored in the memory 23.

The memory 23 stores data such as white balance, horizontal deflection, vertical deflection, etc., which need not be adjusted by the user but need to be adjusted by the manufacturer. The data stored in the memory 23 is adjusted using, for example, an adjustment commander 26 connected to the microcomputer 20 at the time of shipment.

In the above configuration, when the power is turned on, the microcomputer 19 reads the tuning data of the channel selected before the power is turned off from the memory 21, and supplies this data to the tuner circuit 1. The channel selected before the power was turned off is selected.

Further, the data of the offset value of the brightness is read from the memory 21 by the microcomputer 19 and supplied to the microcomputer 20 through the interface 29, and at the same time,
The microcomputer 20 reads the brightness and white balance data from the memory 23, and these data are read by the bus 2
2 and the amplifier control circuit 1 via the interface 27
1, and the control circuit 11 controls the amplifiers 11R to 11R.
11B is controlled, and the three primary color signals RB are adjusted so that the luminance and the white balance are as set.

The microcomputer 20 reads the deflection data from the memory 23 and supplies the deflection data to the pulse processing circuits 15H and 15V via the path 22 and the interface 28 so that the horizontal and vertical deflection waveforms become as set. Adjusted.

Further, offset value data such as contrast, hue and color saturation are read from the memory 21 by the microcomputer 19 and supplied to the microcomputer 20 through the interface 29, and the contrast from the memory 23 is read by the microcomputer 20. Standard value data such as hue and color saturation is read, the offset value data and the standard value data are added, and the added data is added via the interface 27 to the signal processing circuits 5Y and 5C. Are supplied to the signals Y _D and C _D so that the contrast, hue, saturation, etc. are set as specified.
Is adjusted. Therefore, the channel selected when the power is turned off is displayed on the color picture tube 13 in the same state.

The data set in the interfaces 27 and 28 are latched in registers (not shown) provided in the interfaces 27 and 28 until new data is supplied next.

Next, when the user operates, for example, a numeric keypad on the key panel 24, the microcomputer 19 reads channel selection data of a channel preset corresponding to the operated key from the memory 21, and selects the data. Is supplied to the tuner circuit 1 and the channel designated by the ten keys on the key panel 24 is selected. The tuning data of the channel selected at this time is stored in the memory 21.
And is prepared when the power is turned off.

When, for example, a hue key on the key panel 24 is operated, the hue offset value data in the memory 21 is updated each time the key is operated, and the data is transferred to the microcomputer 20 via the interface 29. The supplied data is added to the standard value data from the memory 23, and the added data is added to the interface 2
It is supplied to the signal processing circuit 5C via 7 and the hue is adjusted.

Further, in FIG. 3, reference numeral 30 denotes a display circuit, which is a circuit for displaying a channel selected on the screen of the color picture tube 13 at the time of channel selection and a volume at the time of sound adjustment. . The display circuit 30 includes a microcomputer 1
Display data, that is, channel data, volume data and the like are supplied from the microcomputer 9 via the microcomputer 20. The display circuit 30 obtains three primary color signals R ₁ , G ₁ , and B _{1 of} red, green, and blue according to the display contents, and the adders 10R, 1 respectively.
The channels and the volume are displayed on the screen of the color picture tube 13 so as to be superimposed on the image.

In FIG. 3, the portion surrounded by the alternate long and short dash line is actually formed by one IC.

[0020]

In the television receiver shown in FIG. 3, for example, the microcomputer 20 is set at the time of shipment.
Is connected to a commander 26 for adjustment, and the setting data of each part of the circuit is adjusted. In this case, if the operation mode is changed from the actual use mode, that is, the user mode, to the above-mentioned adjustment mode by operating any switch, the switch operation is erroneously operated or the state (position) of the switch is constantly monitored by software. Must be performed, which causes a problem that program restrictions are large. Therefore, the present invention is intended to prevent such a problem.

[0021]

In order to solve the above-mentioned problems, the present invention is provided with a control means, by which the adjustment mode is discriminated when the power is turned on and automatically switched to the adjustment mode. is there. For example, the microcomputer 20 is used as the control means, and the microcomputer 2 is used when the power is turned on.
The adjustment mode is determined depending on whether or not the adjustment commander 26 is connected to 0.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG. In this FIG.
Portions corresponding to those in FIG. 3 are designated by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 1, reference numeral 26 denotes a commander for adjustment, which comprises a key panel 26A and a microcomputer 26B for generating a remote control signal. In this case, the key panel 26
By operating a predetermined key A, a control signal corresponding to the operation key is output as serial data from the microcomputer 26B.

The power supply terminal and the ground terminal of the microcomputer 26B are connected to the terminals B and E of the connector plug 32 through conductors 31B and 31E constituting the cord 31, respectively. Further, a control signal output terminal of the microcomputer 26B is connected to a terminal IR of the plug 32 through a conductor 31I. The terminal SR of the plug 32 is connected to the terminal E.

Reference numeral 33 denotes a connector jack to which the plug 32 is connected. A power supply + B is supplied to a terminal B of the jack 33, and a terminal E is grounded. The signals obtained at the terminals IR and SR of the jack 33 are supplied to the microcomputer 20, respectively. The terminals B, IR, SR and E of the plug 32 described above correspond to the terminals B,
Connected to IR, SR and E respectively.

The microcomputer 20 operates according to the flowchart shown in FIG. When the power is turned on, it is determined whether the mode is the adjustment mode. in this case,
When the signal supplied from the terminal SR of the jack 33 is at a low level (ground level), the adjustment mode is determined, and otherwise, the user mode used by the user is determined. That is, the commander 26 is connected to the jack 33.
Terminal 32 of the jack 33 when the plug 32 of
Since R is grounded, it is determined to be the adjustment mode.

When it is determined that the adjustment mode is set, the adjustment mode flag is turned on, and the ROM (not shown) of the microcomputer 20 is set.
The average initial setting data of each section of the circuit, which has been written in advance in a partial area, is read, and each section of the circuit is set based on this data. Then, the microcomputer 26B of the commander 26
When the generated control signal is input through the terminal IR of the jack 33, the setting data for each set is adjusted based on the input control signal and is written in the adjusted setting data memory 23 of each part of the circuit. Then, by pressing the adjustment end key of the commander 26, for example, “EXIT”, the adjustment mode flag is turned off and the adjustment mode is released.

On the other hand, in the user mode, the memory 2
Initial setting data written in the adjustment mode is read out from 3, and based on this, the circuit components are set, and thereafter, processing in the user mode is performed.

This embodiment is configured as described above,
By connecting the plug 32 of 6 to the jack 33,
The microcomputer 20 determines the adjustment mode when the power is turned on and automatically switches to the adjustment mode.

This example is configured as described above, and the commander 2
By connecting the plug 32 of 6 to the jack 33,
The microcomputer 20 determines the adjustment mode when the power is turned on and automatically switches to the adjustment mode.

As described above, according to this embodiment, the adjustment mode is discriminated when the power is turned on, and the adjustment mode is automatically switched. Therefore, erroneous operation is reduced as compared with the case where the adjustment mode is switched by an individual switch. In addition, since the determination is made at the beginning of the processing program, that is, when the power is turned on, efficient software can be created without interrupting the flow of the main program (user mode program).

Although the above-described embodiment applies the present invention to a television receiver, it goes without saying that it can be applied to other electronic devices as well.

[0033]

According to the present invention described above, the adjustment mode is determined when the power is turned on, and the adjustment mode is automatically switched. Therefore, there is less erroneous operation compared to the case where the adjustment mode is switched by a separate switch. Since it is determined at the beginning of the processing program, efficient software can be created.

[Brief description of drawings]

FIG. 1 is a system configuration diagram showing an embodiment of an electronic device of the invention.

FIG. 2 is a flowchart used to explain the operation of the system configuration of FIG. 1;

FIG. 3 is a circuit block diagram illustrating an example of a television receiver to which the electronic apparatus of the present invention is applied.

[Explanation of symbols]

 20 Control Microcomputer 23 Nonvolatile Memory 26 Commander for Adjustment 32 Connector Plug 33 Connector Jack

Front page continuation (72) Inventor Hisafumi Yamada 6-735 Kitashinagawa, Shinagawa-ku, Tokyo Sony Corporation

Claims (1)

[Claims] 1. A control signal input section comprising a control microcomputer and a storage means for storing setting data therein, and a control signal for adjusting the setting data stored in the storage means is inputted from an external device. In the setting data adjusting method for an electronic device, which is configured to give the setting data read from the upper storage means to each internal circuit unit to control each circuit unit under the control of the microcomputer, The electronic device detects whether or not a predetermined signal is input to the control signal input unit when the power of the electronic device is turned on, and when it is detected in the detection that the predetermined signal is not input, It is characterized in that switching is performed so as to shift to the user mode, and when the shift is made to the adjustment mode, the adjusted setting data is stored in the storage means. How to adjust the electronic equipment to be collected.