JPH07170207A - Electronic equipment - Google Patents

Abstract

PURPOSE:To simplify the change and set of a specification mode without necessity to connect a diode to the matrix circuit of a key input part corresponding to the destination by setting or changing the specification mode corresponding to the input from an operating means. CONSTITUTION:When the activation starting operation of an initial set mode for setting or changing the specification mode is performed, all the display segments of a display part 3 are displayed while being turned on and off, and the change into the present initial set mode is displayed on the display part 3. Next, when the specification mode is set or changed by a control circuit 11, the contents of the set or changed specification mode are displayed on the display part 3. When a write operation to change the displayed contents of the specification mode is performed, the changed specification mode is stored through a write part 16 into a non-volatile memory 13 and in order to report it to a user that the reloaded specification mode is completely stored in the non-volatile memory 13, the display segments of the display part 3 are turned on and off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electronic equipment such as audio equipment and video equipment whose specifications can be changed according to the destination.

[0002]

2. Description of the Related Art Conventionally, such electronic equipment includes audio equipment such as a radio receiver.

Since radio broadcasting has different broadcasting standards such as frequency band and channel separation depending on the country, it is necessary to change the specification mode for each destination and manufacture a model having a specification mode set for each destination. There wasn't.

Therefore, in the conventional radio receiver, a specification mode for each of a plurality of destinations is set in advance, and a predetermined specification mode is selected from the plurality of specification modes and set. is there.

According to the radio receiver, the connection point of the diode connected to the matrix circuit of the key input section is made different depending on the destination, and the connection point of the diode is judged by the microcomputer, and based on the judgment result. Set the specification mode for each destination.

Therefore, according to the conventional radio receiver,
Since a plurality of specification modes can be selectively selected, there is no need to manufacture a model for each specification mode that differs depending on the destination, and the manufacturing cost can be significantly reduced.

[0007]

However, according to the radio receiver to which the above-mentioned conventional electronic equipment is applied, in order to set the specification mode for each destination, the matrix circuit of the key input section is set according to each destination. There was a problem that a diode had to be connected to a predetermined position of the.

The present invention has been made in view of the above problems, and an object thereof is to change the specification mode without the need to connect a diode to the matrix circuit of the key input section according to the destination. It is to provide an electronic device with simplified settings.

[0009]

In order to achieve the above object, the present invention is an electronic device which operates according to a specification mode, and a control means for storing a plurality of specification modes for controlling the electronic device. The specification mode stored in the storage means includes operation means for setting or changing the specification mode and storage means for storing one specification mode set or changed by the operation means. The electronic device is controlled based on the above.

[0010]

With this configuration, the specification mode is set or changed according to the input from the operating means, so that it is not necessary to connect the diode to the matrix circuit of the key input section according to the destination, and the specification mode can be set. The change setting of can be simplified.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Electronic equipment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an operation panel of a vehicle-mounted audio device to which the electronic device of the invention is applied. FIG. 2 is a block diagram showing an outline of the vehicle audio device.

In FIG. 1, a body 1 of the audio apparatus has a cassette insertion slot 2 for inserting a cassette tape, a display section 3 for displaying a reception frequency, a reception band, etc., a power switch and an operation button 4 for adjusting a volume. And a sound quality adjustment key 5 for adjusting the sound quality, and a preset tuning key 6 for selecting a preset radio station for up to 6 channels.
And fast forward (FF) and rewind (R) in the cassette function
It has a function mode key 7 for selecting and instructing EW) and a band selection key 8 for switching and selecting a broadcasting band such as AM broadcasting and FM broadcasting.

The display section 3 includes a display segment 3a for displaying a reception frequency, a display segment 3b for displaying a preset channel number, and a display segment 3c for displaying a tape running direction during a cassette function. , Display segment 3 displaying the current broadcast band
d and.

In the on-vehicle audio system shown in FIG. 2, a cassette deck 9 corresponding to the cassette function is provided.
And a radio receiving circuit 10 corresponding to the radio function,
A key input unit 12 that receives a key input from a key or the like provided on the front panel, the display unit 3, a nonvolatile memory 13 that stores a specification mode, and a control circuit 11 that controls the entire vehicle audio device. And have.

The control circuit 11 includes a key determining section 14 for determining a key input from the key input section 12, a display processing section 18 for controlling the display section 3, and the radio receiving circuit 1.
A radio control unit 15 for controlling 0, a writing unit 16 and a reading unit 17 for memory controlling the non-volatile memory 13.
And a central processing unit 19 for controlling the cassette deck 9 and the control circuit 11 as a whole.

A memory (not shown) of the central processing unit 19 has a specification mode such as a recitation code of a code input type antitheft device and various set values such as a destination code, the presence or absence of an antitheft function, a DSP (digital signal processor). )
The setting value of whether or not the audio device is connected using, the operation mode when a failure occurs, and the like are stored.

The feature of the on-vehicle audio system of this embodiment is that the specification mode stored in the memory of the central processing unit 19 is selected by key operation, and the selected specification mode is set in the nonvolatile memory 13. The specification mode stored in the non-volatile memory 13 is easily set or changed.

Next, the operation of the vehicle audio device will be described. FIG. 3 is a flow chart showing the processing operation of the central processing unit 19.

In FIG. 3, it is determined whether or not a start operation for starting the initial setting mode for setting or changing the specification mode has been performed (step S1). When the start-up operation of the initial setting mode is performed, all display segments of the display unit 3 are blinked and the display unit 3 is made to display that the current initial setting mode has been entered (step S2).

Next, it is determined whether or not the setting or changing operation in the specification mode of the control circuit 11 is performed (step S3). The setting or changing operation is performed by operating the preset channel selection key 6.

When the specification mode is set or changed in step S3, the contents of the set or changed specification mode are displayed on the display section 3 (step S4).
It is determined whether or not a writing operation for changing the contents of the displayed specification mode is performed (step S5). The writing operation is performed by operating the band switching key 8.

When a write operation for changing the contents of the specification mode is performed in step S5, the changed specification mode is written in the nonvolatile memory 13 via the writing section 16.
In order to notify the user that the rewritten specification mode has been stored in the non-volatile memory 13, the display segments 3a, 3b of the display section 3 are stored.
Blinks on the display (step S6), and it is determined whether or not the completion operation of the initial setting mode is performed (step S6).
7). The completion operation is performed by operating a predetermined operation key.

When the completion operation is performed in step S7, the display on the display unit 3 is cleared, the initial setting mode is canceled (step S8), and the initial setting mode is ended.

According to the on-vehicle audio system of the above-described embodiment, the specification mode in the control circuit 11 is changed or set according to the input operation, and the contents of the changed or set specification mode are stored in the nonvolatile memory 13. Since it is stored, it is possible to easily set or change the operation mode by key operation without connecting a diode to the matrix circuit of the key input unit as in the conventional case. When the power is turned on, for example, when the power supply is turned on, the specification mode stored in the non-volatile memory 13 is read, and various settings are made according to the read specification mode.

If the destination code in the specification mode is the United States, a band that matches the receiving frequency band of the United States is set, and channel separation, preset memory initial values, etc. are set.

If a code without the anti-theft function is stored in the non-volatile memory 13 during the specification mode, the operation mode is set so that the operation code of the recitation code type anti-theft function does not work. Is.

In the above-described embodiment, the description has been made by applying it to the on-vehicle audio device, but it goes without saying that the present invention can also be applied to home electric appliances such as televisions having different specifications depending on the destination.

[0028]

According to the electronic apparatus of the present invention configured as described above, the specification mode is set or changed in accordance with the input from the operating means, so the key input section is selected according to the destination. Since it is not necessary to connect a diode to the matrix circuit, the specification mode change setting can be simplified.

[Brief description of drawings]

FIG. 1 is a front view showing an operation panel of an in-vehicle audio device to which an electronic device of the invention is applied.

FIG. 2 is a block diagram showing an outline of an on-vehicle audio device.

FIG. 3 is a flowchart showing a processing operation of a central processing unit in the car audio system.

[Explanation of symbols]

 12 key input section (operation means) 13 non-volatile memory (storage means) 19 central processing section (control means)

Claims (3)

[Claims] 1. An electronic device which operates according to a specification mode, wherein the control means stores a plurality of specification modes for controlling the electronic device, an operating means for setting or changing the specification mode, and the operating means. And a storage unit for storing one specification mode set or changed by the control unit, wherein the control unit controls the electronic device based on the specification mode stored in the storage unit. machine. 2. The electronic device is a receiving device for receiving a broadcast, and the specification mode is a broadcast specification mode standardized for each broadcast area having a different broadcast specification. Electronics. 3. The electronic device according to claim 1, wherein the electronic device is a receiving device that receives a broadcast, and the specification mode is a broadcast specification mode standardized for each country.