JP2004234836A - Electronic device and its control process - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the power consumption of an electronic device equipped with a plurality of movable units in the front panel section of a device body. <P>SOLUTION: The electronic device 1 comprises an electronic device body 2, a first module 3 and a second module 4. The first module 3 is equipped with a control CPU 21 and the second module 4 is equipped with a control CPU 22. The electronic device body 2 is equipped with a system CPU 31, a power source 33 for the control CPU to supply a power source to the control CPU 21 of the first module 3 and a power source 35 for the control CPU to supply a power source to the control CPU 22 of the second module 4 and is further equipped with a position detection part detecting the position of the module. The power source of the power source 35 for the control CPU is cut off in accordance with the positions of the first module 3 and the second module 4. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to an electronic apparatus in which a plurality of movable units mounted on a moving body such as a vehicle and movable are arranged on a front panel thereof, and belongs to a technical field of power supply to the movable units and a control method therefor. .

  Conventional electronic devices include various car audio devices such as a CD (Compact Disc) player, a DVD (Digital Versatile Disc) player, an MD (Mini Disc) player, and an AM / FM tuner, which are mounted on an instrument panel of a vehicle. Alternatively, there are car audio devices in which these are integrated as a unit, and devices in which these and a navigation device are integrated. In addition, there is an electronic device in a form provided with a unit operated by a remote control.

  As described above, the operation functions of these car audio devices and the like are increasingly increasing and the operation is becoming more complicated. Therefore, many of these operation functions must be provided in a limited area of the instrument panel. Various countermeasures have been proposed. For example, there has been proposed a configuration in which a plurality of operation units provided with operation keys and the like are sequentially provided on a front panel portion of a car audio device, and operation functions and display functions are distributed to the respective operation units. Further, in addition to such a device, a system operated by a remote control has been proposed.

  For example, when two operation units are provided in front of each other on a front panel portion of a car audio device, the use state thereof is a case where only the first operation unit provided in front of the two is used, The second operation unit provided behind the first operation unit may be used at the same time. Further, there is a case where an insertion slot for inserting and ejecting a disc provided on a front panel portion of the electronic device main body at the back of the second operation unit is used, and the two operation units are opened and closed accordingly. There are things that let me.

JP 2003-174688 A

  By the way, when only the first operation unit is used and the second operation unit is also operating, useless power is continuously consumed. Further, if a device or the like that requires high-frequency driving is provided in the second operating unit, high-frequency noise due to the driving is radiated, or noise is transmitted to the first operating unit via a signal line or a power supply line. Intrusion, in particular noise into the first operating unit. For example, the noise jumps to a metal panel on which the first operation unit can be configured, a circuit pattern on a circuit board provided inside the second operation unit, and the like, and passes through the casing of the first operation unit and the pattern. For example, there is a concern that the influence on an AM / FM tuner (hereinafter, referred to as a tuner) provided in an electronic device main body and the sensitivity (S / N ratio) of receiving a radio wave of the tuner may be significantly deteriorated. Was. In particular, when the second operation unit is in close contact with the first operation unit, the influence of high-frequency noise is great.

  Accordingly, the present invention regards the solution of the above problem as one problem, and an electronic device in which a plurality of movable units can operate independently and are provided movably with respect to a front panel of an electronic device body. An object of the present invention is to provide, for example, an electronic device that prevents a decrease in the S / N ratio of a tuner provided in an electronic device main body or reduces power consumption, and a control method thereof.

  The electronic device according to claim 1 of the present invention is configured such that each of the electronic devices can operate independently by being supplied with power, and each of the electronic devices can move with respect to a front panel of the device main body. An electronic device comprising a unit and a second movable unit, wherein a power supply unit for supplying power to the first movable unit and the second movable unit, the first movable unit and the second The power supply device includes a position detection unit that detects a position of the movable unit, and a power supply control unit that shuts off only power supply to the second movable unit according to a detection result of the position detection unit.

  According to a third aspect of the invention, there is provided a method for controlling an electronic device, wherein each of the electronic device can be operated independently by being supplied with power, and each can be moved with respect to a front panel of the device main body. A method for controlling an electronic device including a first movable unit and a second movable unit, wherein the step of detecting the positions of the first movable unit and the second movable unit includes: Interrupting the power supply to the second movable unit.

  An electronic apparatus according to an embodiment of the present invention will be described with reference to FIGS. The electronic device described here has two movable units provided in front of and behind the front panel portion of the electronic device main body and a front panel portion of the electronic device main body located further behind the movable unit disposed rearward. And an opening for inserting and ejecting a disk. Each of the two movable units performs a moving operation individually, and has detection means for detecting the open / close state of each operation unit and the state in which the disc can be ejected.

  First, FIG. 1 is a schematic block diagram showing a configuration of an electronic device 1 of the present embodiment. The electronic device 1 includes an electronic device main body 2, a first operation unit 3 as a first movable panel, and a second movable unit. It is composed of a second operation unit 4 as a panel. The first operation unit 3 is disposed in front of the electronic device main body 2, and the second operation unit 4 is disposed behind the first operation unit 3.

  The first operation unit 3 includes an operation key 10 (shown in FIG. 5) for operating the electronic device 1, a display device 9 indicating a function or an operation state of the electronic device 1, and each function or display device 9 of the first operation unit 3. A control CPU 21 is provided as first control means for controlling. The display device 9 is, for example, a small LCD (Liquid Crystal Display) because of the many operation keys 10 and the like, and is suitable for simply displaying the functions and operation states of the electronic device 1.

  The second operation unit 4 includes an operation key 17 (shown in FIG. 9) for operating the electronic device 1, a display device 19 indicating a function and an operation state of the electronic device 1, a function and a display device of the second operation unit 4. A control CPU 22 as second control means for controlling the control unit 19 is provided. In the second operation unit 4, the main operation keys are provided in the first operation unit 3, so that the number of the operation keys 17 can be reduced. Therefore, the display device 19 can be large and high definition. An organic EL (Electro-Luminescence) is preferably used as the display device 19, and the function and operation state of the electronic device 1 can be displayed in detail, and a video can be displayed.

  The electronic device body 2 supplies a system CPU 31 for controlling the entire electronic device 1, a display device power source 32 for supplying power to the display device 9 of the first operation unit 3, and a power source for the control CPU 21 of the first operation unit 3. A power supply for the control CPU 33, a power supply for the display device for supplying power to the display device 19 of the second operation unit 4, and a power supply for the control CPU 35 for supplying power to the control CPU 22 of the second operation unit 4.

  Further, a driving unit 36 for individually moving the first operation unit 3 and the second operation unit 4, a position detection unit 37 for detecting the open / close position of the first operation unit 3 and the second operation unit 4 and the position where the ejection is possible. , A position detecting circuit 38 for converting a signal from the position detecting section 37 into a position signal based on the signal.

  In addition, a disc reproducing device 39 is added to the electronic apparatus body 2 as a function of reproducing a disc, and the disc 8 is inserted and ejected from the disc insertion slot 7. These position detections are performed by operating an arm that transmits the operations of the first operation unit 3 and the second operation unit 4 from a drive source to a switch or the like provided at a predetermined position.

  In FIG. 1, if the second operation unit 4 is closed, it is detected as a position for covering the disc insertion slot 7, and if the first operation unit 3 is also arranged so as to cover the front of the second operation unit 4, the same applies. Is detected. If it is in another state, naturally the position information corresponding to that state is output.

  The operation unit is not limited to the two operation units as described above, and may be more. However, it is necessary to provide a mechanism for individually driving them and a means for detecting their positions.

  Next, a control method of the electronic device 1 will be described with reference to FIGS. When the second operation unit 4 is in a state of completely covering the disc insertion slot 7 and the first operation unit 3 is also in a state of covering the second operation unit 4, that is, the second operation unit 4 is invisible from the outside. In this method, when the electronic device 1 is operating, the power supply to the second operation unit 4 is shut off. The power supply is shut off, for example, after the power supply to the display device 19 is shut off, and then the power supply to the control CPU 22 is shut off.

  As shown in FIG. 2, the positions of the first operation unit 3 and the second operation unit 4 are determined by the system CPU 31 based on the signals from the position detection switches SW1, SW2, and SW3 constituting the position detection unit 37. When the system CPU 31 determines that the second operation unit 4 is in a state of covering the disk insertion slot 7 and the first operation unit 3 is in a state of covering the second operation unit 4, first, the display device of the second operation unit 4 The display device power supply 34 for supplying power to the power supply 19 is turned off, and then the control CPU power supply for the control CPU 22 of the second operation unit 4 is turned off.

FIG. 3 is a timing chart of the control, and is an example relating to the movement operation of the first operation unit 3 and the second operation unit 4. At time t _0, the second operation unit 4 covers the disc insertion opening 7, the first operation unit 3 is in a state of covering the second operation unit 4 (hereinafter will be referred to the state of the initial "close") . In the initial state, the position detection SW1 is "L", the position detection SW2 is "H", and the position detection SW3 is "H". Then, if there is an operation instruction for moving these operation units, the display device power supply of the second operation unit 4 and the control CPU power supply are turned on, and the first operation unit 3 and the second operation unit 4 move the disc insertion slot 7 forward. Start moving downward to expose the At this time, the position detection SW1 changes from “L” to “H”, and the outputs of the three position detection SWs change to “H”.

Next, the disk insertion opening 7 at time t ₁ in the first operation unit 3 is the second operation unit 4 moves completely exposed, referred to as the state of the condition to enable the disk eject (hereinafter "Eject" Description Do). In the eject state, the position detection SW1 outputs "H", the position detection SW2 outputs "H", and the position detection SW3 outputs "L".
While each position detection SW is outputting this signal, it is possible to insert and eject the disk. In other words, if a command to insert or eject a disk is not issued while each of these position detection SWs is outputting this signal, the first operation unit 3 and the second operation unit 3 The movement operation of the operation unit 4 is restarted.

When the second operation unit 4 starts moving upward from the eject state, the position detection SW2 changes from “H” to “L”. The second operation unit 4 moves to the information, and the first operation unit 3 moves downward as it is. Then, the second operation unit 4 continues to move upward, stops after completely covering the disk insertion slot 7 (time t ₂ ), and stops moving the first operation unit 3. At this time, the output of the position detection SW1 becomes "H", the output of the position detection SW2 becomes "L", and the output of the position detection SW3 becomes "H". The unit 3 is in a state where the second operation unit 4 is opened (hereinafter, referred to as an “open” state).

Next, when the operation instruction to have been made back to the open state from at time t ₃ the first operation unit 3 and second operation unit 4 initial state, the second operation unit 4 moves downward, the first operation The unit 3 moves upward. At this time, the output of the position detection SW3 changes from “H” to “L”, the position detection SW1 outputs “H”, and the position detection SW2 outputs “L”.

Then, the position detection SW2 become the eject state at time t ₄ becomes "H" from "L", the position detection SW1 is "H", the position detection SW3 outputs "L". When the second operation unit 4 starts moving upward from the eject state, the position detection SW3 changes from “L” to “H”. The second operation unit 4 moves upward, and the first operation unit 3 moves upward as it is.

Then, the second operation unit 4 continues to move upward to completely cover the disc insertion slot 7 and then stops (time t ₅ ), and the movement of the first operation unit 3 also covers the second operation unit 4. Stop after the state (closed state). At this time, the output of the position detection SW1 changes from “H” to “L”, the output of the position detection SW2 changes to “H”, and the output of the position detection SW3 changes to “H”.

  As described above, the positions of the first operation unit 3 and the second operation unit 4 can be known from the three position detection SWs. That is, when the position detection SW1 is “L”, the position detection SW2 is “H”, and the position detection SW3 is “H”, it is known that the state is the initial state, and the position detection SW1 is “H” and the position detection SW2 is “H”. When the position detection SW3 is "H", the position detection SW3 is "H" and the position detection SW3 is "H", the position detection SW3 is "H". You can know that you are in the state.

The control according to the present embodiment is performed when the output of the position detection SW 1 is “L”, the output of the position detection SW 2 is “H”, and the output of the position detection SW 3 is “H”. In a state where the mouth 7 is completely covered in the original state and the first operation unit 3 also completely covers the second operation unit 4, the power supply to the display device 19 of the second operation unit 4 is cut off. It is intended to shut off the power supply. Accordingly, the display device power supply of the second operation unit at time t ₆ is in 0FF, so that the control CPU power of the second operating unit at time t ₇ after a predetermined time is in the 0FF.

  The relationship between the output of each position detection SW and the first operation unit 3 and the second operation unit 4 and the control of the power cutoff have been described. However, the present invention is not limited to such a case, and the position detection SW1, SW2, and SW3 When the output becomes “L”, “H”, or “H”, it may be determined that the second operation unit 4 is not operating, and power cutoff for the second operation unit 4 may be performed.

  Next, a control flow will be described. As shown in the flowchart of FIG. 4, first, it is determined whether or not there has been an operation input for returning the first operation unit 3 and the second operation unit 4 to the initial state (step S101). If there is no input, the process returns to step S101 and waits until an input is made. When there is an input, the operation of returning the first operation unit 3 and the second operation unit 4 to the initial state is started (step S102).

  Next, it is determined whether or not the output of the position detection SW1 is "L" (step S103). If it is not "L", the process returns to step S103, and if it is "L", it is determined whether or not the output of the position detection SW2 is "H" (step S104). If it is not "H", the process returns to step S103, and check is again performed from the output of the position detection SW1. On the other hand, if it is "H", it is next determined whether or not the output of the position detection SW3 is "H" (step S105). If it is not "H", the process returns to step S103, and check is again performed from the output of the position detection SW1.

  On the other hand, if the output of the position detection SW 3 is “H”, the second operating unit 4 is in the initial state, and the display device power supply 34 of the second operating unit 4 is turned off (step S106). After confirming that the display device power supply 34 is turned off (step S107), the control CPU power supply 35 of the second operation unit 4 is turned off (step S108), and the control operation is completed.

  Note that the control flow is not limited to the above, and any form of flow that implements the technical concept of the present invention may be used.

  As described above, when the second operation unit 4 is not in use and completely covers the disc insertion slot 7 and the first operation unit 3 is also in a state of covering the second operation unit 4, the second operation unit 4 By shutting off the power supply, for example, it is possible to prevent the S / N ratio of the tuner provided in the electronic device main body 2 from lowering due to radiation noise and to reduce power consumption. Particularly when the second operation unit 4 includes a large and high-definition organic EL display device, the effect is large.

  In addition, after the power supply to the display device 19 is cut off, the power supply to the control CPU 22 is cut off to prevent an erroneous initial setting and an erroneous display on the display device 19.

  Next, the configuration of the electronic device according to the present embodiment will be described with reference to FIGS. The relationship between the timing chart of FIG. 3 and the flowchart of FIG. 4 will be described with appropriate correspondence.

  As shown in FIG. 5, the electronic device 1 includes two operation units for operating the electronic device 1, a first operation unit 3 and a second operation unit 4 on the front panel 15 of the electronic device main body 2. The units 3 are arranged in front of each other and the second operation unit 4 is arranged rearward in front of each other.

  On the front surface of the first operation unit 3, a display device 9, various operation keys 10, a light receiving unit 12, an open / close key 16 and the like are provided, and as shown in FIG. A display device 19 is provided.

  The display device 9 of the first operation unit 3 displays a function and an operation state of the electronic device 1. The operation keys 10 are input keys for operating the electronic device 1, and the light receiving unit 12 is a part that receives a signal based on infrared rays from a remote control terminal. The open / close key 16 is an input key for automatically opening and closing the first operation unit 3 and the second operation unit 4 by operating this operation key.

  The operation keys 17 of the second operation unit 4 are also input keys for operating the electronic device 1, and the display device 19 has a function of displaying a detailed description in addition to the functions and operation states of the electronic device 1. Have.

  As the display means, for example, an LCD is preferably used for the display device 9, and an organic EL is preferably used for the display device 19.

  By providing the two operation units of the first operation unit 3 and the second operation unit 4, for example, in a vehicle-mounted electronic device, many operation keys 10 and 17 can be arranged in the limited space of the instrument panel, Further, a large and high-definition display device 19 can be provided. When the second operation unit 4 needs to be used, as will be described in detail later, the first operation unit 3 is moved to a predetermined position, and the second operation unit 4 is configured to be easily seen by the user. . In addition, it is possible to provide more operation units without being limited to the two operation units.

  The electronic device 1 includes various components for carrying out its functions, for example, a CD playback mechanism and an MD playback mechanism, a CD and an MD storage unit for an audio playback device, and an AM / FM broadcast radio wave for a radio reception device. A television tuner, a demodulator for converting a received radio wave into an audio signal, and a television tuner for receiving a video radio wave, and a demodulator for demodulating a video signal and an audio signal from the received radio wave. Etc. are provided. The display device 19 of the second operation unit 4 can also be used for displaying an image on a television.

  Next, an example of the structure of the first operation unit 3 and the second operation unit 4 of the electronic device 1 and the operation thereof will be described. 5 is an initial state of the electronic device 1, and FIG. 6 is a cross-sectional side view of a part of the electronic device 1 shown in FIG. As can be clearly understood from FIG. 6, in this state, the first operation unit 3 and the second operation unit 4 are arranged on the front panel unit 15 so as to overlap with the first operation unit 3 in front. Therefore, they are arranged in close contact with each other, and in particular, when the second operation unit 4 includes the display device 19 using the organic EL, the radiation noise is generated by driving the display device 19 or the like. Affects the tuner provided in the electronic device main body 2 and causes a reduction in the S / N ratio.

Next, the user operates the operation keys 10 of the first operation unit 3 at time t ₀ in FIG. 3, or by received by the receiver 12 to transmit signals from the remote control, the first operation unit 3 and, movement of the second operation unit 4 is started, a state in which the disc insertion port 7 is exposed at time t ₁ in FIG.

Figure 7 is shows a state in which the time t ₁ Oite disk slot 7 is exposed, a state that allows insertion and ejection of the disc. FIG. 8 is a cross-sectional side view of a part of the electronic device 1 shown in FIG. In this state, the output of the position detection SW1 is "H", the output of the position detection SW2 is "H", and the position detection SW3 is "L".

FIG. 9 shows that, for example, after the disc ejection is completed, the second operation unit 4 is raised again to cover the disc insertion slot 7 and is set in an oblique state in accordance with the user's line of sight so that the user can easily recognize the disc. (Time t ₂ in FIG. 3), the display device 19 and the like are operating. FIG. 10 is a cross-sectional side view of a portion indicated by an arrow CC of the electronic device 1 shown in FIG.

In the state shown in FIG. 9, the first operation unit 3 and the second operation unit 4 are located apart from each other, so that the display device 19 is less affected by radiation noise or the like. When the first operation unit 3 and closes the second operation unit 4 operated at time t ₄ in FIG. 3 is a user in this state, completing the operation of closing at time t ₅ in FIG. 3, in a state shown in FIG. 5 Return.

  In this state, as can be clearly understood from FIG. 6, the display device 19 and the first operation unit 3 are in a close positional relationship, and the electromagnetic effect of the display device 19 is increased. The power supply 34 for the display device and then the power supply 35 for the control CPU are cut off, and the operation of the display device 19 and the operation of the control CPU 22 are sequentially stopped.

  Note that the above-described system is not limited to an electronic device that handles audio, and may be used for an electronic device that handles video. Further, the present invention is not limited to a device mounted on a vehicle, and may be applied to an electronic device used in a general home.

  As described above, according to the electronic device of the present embodiment, it is detected that the two movable units are completely accommodated in the front panel of the electronic device main body, and the second movable unit on the back is in the use state. By shutting off the power supply to the second movable unit on the back, for example, it is possible to eliminate the generation of radiation noise and to prevent performance deterioration such as sensitivity deterioration during tuner reception. Become.

  Further, power consumption can be reduced by shutting off power supply to the second movable unit that is not in use.

FIG. 1 is a schematic block diagram illustrating a configuration of an electronic device according to an embodiment. FIG. 3 is a block diagram for describing control of the electronic device according to the embodiment. 5 is a timing chart regarding control of the electronic device of the embodiment. 5 is a flowchart illustrating a flow of control of the electronic device of the embodiment. It is a perspective view showing composition of electronic equipment used for electronic equipment control systems of this embodiment. FIG. 6 is a partial cross-sectional side view illustrating a cross section taken along arrow AA of the electronic device illustrated in FIG. 5. FIG. 6 is a perspective view showing an operation mode of the electronic device used in the electronic device control system according to the embodiment, which is subsequent to FIG. 5. FIG. 8 is a partial cross-sectional side view showing a cross section taken along arrow BB of the electronic device shown in FIG. 7. FIG. 8 is a perspective view illustrating an operation mode of the electronic device used in the electronic device control system according to the embodiment, which is subsequent to FIG. 7. FIG. 10 is a partial cross-sectional side view illustrating a cross section taken along arrow CC of the electronic device illustrated in FIG. 9.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 ... Electronic device 2 ... Electronic device main body 3 ... First operation unit 4 ... Second operation unit 7 ... Disc insertion slot 8 ... Disks 9, 19 ... Display device 10 , 17 ... operation keys 12 ... light receiving section 15 ... front panel section 16 ... open / close key 20 ... arms 21, 22 ... control CPU
31 ... System CPU
32, 34 ... power supply for display device 33, 35 ... power supply for control CPU 36 ... drive unit 37 ... position detection unit 38 ... position detection circuit 39 ... disk playback device

Claims (3)

An electronic device having a first movable unit and a second movable unit, each of which can operate independently by being supplied with power, and each of which is movable with respect to a front panel of the device main body. So,
Power supply means for supplying power to the first movable unit and the second movable unit,
Position detection means for detecting the position of the first movable unit and the second movable unit,
An electronic device, comprising: a power control unit that shuts off only power supply to the second movable unit in accordance with a detection result of the position detection unit. The first movable unit and the second movable unit are arranged at a first position arranged to overlap each other in front of the front panel unit, and a second position in which their front surfaces are both exposed in front of the front panel unit. Is movable across the position,
2. The electronic device according to claim 1, wherein the power control unit cuts off only power supply to the second movable unit when the position detection unit detects that the vehicle is at the first position. 3. machine. An electronic device having a first movable unit and a second movable unit, each of which can operate independently by being supplied with power, and each of which is movable with respect to a front panel of the device main body. A control method,
Detecting the positions of the first movable unit and the second movable unit,
Cutting off only the power supply to the second movable unit according to the position detection result.

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