JP4539875B2 - Electronic device and electronic device control system provided with the same - Google Patents

Description

  The present invention relates to an electronic device controlled based on an externally input signal and an electronic device control system including the electronic device.

  A DVD player as an electronic device can be operated with various operation switches provided on the front surface of the housing, and can also be operated with a remote control. For this reason, a light receiving sensor for receiving a signal (infrared signal) from a remote controller is provided on the front surface of the housing. A signal received by the light receiving sensor is sent to a control unit such as a CPU, and the CPU controls driving of a player unit having an optical pickup, a spindle motor, and the like based on the input signal.

  If the signal cannot be received by the light receiving sensor, the drive of the player unit cannot be controlled. Therefore, in Patent Document 1, an infrared light receiving unit is provided on each of the front and top surfaces of the housing of the CD receiver device. Selectively switch between them (enable one and disable the other), and select either infrared light receiving unit with the selection switch according to the installation direction (vertical or horizontal) of the chassis By switching between these, an audio desktop system has been proposed that can reliably receive a signal from a remote controller when the casing is installed in either a vertical or horizontal orientation.

However, in Patent Document 1, when there is no CD receiver device in a range where infrared rays reach, driving of the CD receiver device cannot be controlled by a remote controller. Therefore, in Patent Document 2, a CD player, a receiver, a speaker, a remote controller, and a receiver that receives signals from the remote controller are arranged in the main room, a speaker, a remote controller, and a receiver are arranged in the sub room, and a CD player, When the main room speaker and the sub room speaker are connected and the remote control is operated in the main room, the receiver plays the music reproduced by the CD player from the main room speaker based on the signal received by the receiver in the main room. An audio system and a sound device control method are proposed in which, when a remote control is operated in a sub room, the receiver outputs music reproduced by a CD player from a sub room speaker based on a signal received by the sub room receiver. ing.
JP 2003-111172 A JP 2003-45166 A

  However, in Patent Document 2, when the remote controller is operated at the same time in the main room and the sub room, the receiver cannot determine which speaker should output the music tune, and malfunction may occur. There was a problem. Further, when signals are received by a plurality of receivers and control is performed based on both signals, the same control may be performed a plurality of times, which is a problem.

  The present invention has been made in order to solve the above-described problem. Even when a plurality of input units to which an external signal is input are provided, a malfunction of the control unit or a malfunction of performing the same control a plurality of times is provided. An object of the present invention is to provide an electronic device that can be prevented and an electronic device control system including the electronic device.

  In order to achieve the above object, an electronic device according to the present invention includes a plurality of input units to which signals from the outside are input; a drive unit that is driven based on signals input to the plurality of input units; And a control unit that controls driving of the driving unit based on the input signal, and a preset one input of the plurality of input units When an external device that outputs a signal input from the outside is connected to the unit, a signal input from the external device to the preset input unit is input to the control unit, and another input unit And adjusting means for adjusting so as not to input the signal input to the control unit.

  Note that examples of the electronic apparatus of the present invention include a DVD player, a CD player, an amplifier, and a converter. Moreover, as said some input part, what inputs a signal by radio | wireless and what is input by wire are mentioned. Further, the adjusting means is connected to the plurality of input units, and when the external device is not connected to the preset input unit, signals are inputted to the control unit in the order of input, and the preset unit is set. When the external device is connected to the input unit, it is preferable that only the signal input from the preset input unit is input to the control unit.

  The preset input unit includes a detection unit that detects that the external device is connected, and the adjustment unit is input to the other input unit in response to detection by the detection unit. It is preferable to adjust so that a signal is not input into the said control part.

  Furthermore, it is preferable that the preset input unit is constituted by a jack into which a plug provided in the external device is inserted. In this case, the electronic device of the present invention and the external device are connected by wire.

  Further, it is preferable that a housing for housing the driving unit and the control unit is provided, and the preset input unit is provided on a rear surface of the housing. Furthermore, it is preferable to provide at least one of the other input units on the front surface of the housing. Moreover, it is preferable that the input part provided in the front surface of the said housing | casing is comprised from the infrared rays light receiving sensor which light-receives the infrared signal from the outside.

  Furthermore, the electronic device control system of the present invention includes the electronic device; the external device connected to the preset input unit; an external device that outputs an externally input signal; and the other input unit. And a signal output device that outputs a signal input to the external device, and the control unit drives the drive unit based on a signal input from the external device to the preset input unit. It is characterized by controlling. The signal output device preferably outputs an infrared signal, and the external device preferably receives the infrared signal output from the signal output device. Moreover, it is preferable that the signal output device is constituted by a remote controller.

  In addition, the drive unit may include a disk reproduction unit having an optical pickup that reproduces data recorded on the optical disk, and may include an audio output device and / or an image display device that outputs data reproduced by the optical pickup. preferable. Note that examples of the electronic device control system of the present invention include a DVD player, a remote controller, a home theater system including a monitor and a speaker, a CD player, an audio system including a remote controller and a speaker, and the like.

  According to the electronic device of the present invention, when an external device is connected to a preset input unit, a signal input from the external device to the preset input unit is input to the control unit, and the other input Since the signal input to the control unit is adjusted so as not to be input to the control unit, even when signals are input to a plurality of input units, the control unit is controlled only by a signal input to a preset input unit. Therefore, the malfunction in the control unit (the operation failure of the control unit, the same control is performed a plurality of times) does not occur.

  In addition, it detects that an external device is connected to a preset input unit, and adjusts not to input signals input to other input units to the control unit in response to this detection. Control can be easily stabilized simply by connecting an external input device to the input unit.

  Furthermore, according to the electronic device control system of the present invention, when an external device is connected to a preset input unit, a signal input from the external device to the preset input unit is input to the control unit. Because it adjusts so that signals input to other input units are not input to the control unit, even when signals are input to multiple input units, malfunctions in the control unit (malfunction of the control unit, the same control Do not occur multiple times).

  As shown in FIGS. 1 and 2, a home theater system (electronic device control system) 2 embodying the present invention includes a DVD player (electronic device) 3, an infrared light receiving unit (external device) 4, and a monitor (image display device) 5. A speaker (audio output device) 6 and a remote controller (signal output device) 7. The DVD player 3 is connected to the monitor 5 and the speaker 6 by a connection cable (not shown), and video data and audio data reproduced by the DVD player 3 are output from the monitor 5 and the speaker 6. Two speakers 6 are provided, one on each side of the monitor 5.

  The DVD player 3 accesses a DVD (not shown) and records and / or reproduces data recorded on the DVD. Inside the housing 11, data is recorded and / or recorded on the DVD. An optical pickup 12 that performs reproduction, and a player unit (disc reproduction unit) 14 having a disc tray 13 that slides between a position exposed from the front surface of the casing 11 and a position accommodated in the casing 11 are incorporated. ing. The player unit 14 is a well-known player and has a spindle motor or the like (not shown), although a detailed description thereof is omitted.

  The remote controller 7 is for operating the DVD player 3 at a position away from the DVD player 3, and includes an open / close switch for opening / closing the disc tray 13, a reproduction switch, a stop switch, a pause switch, a one-track fast-forward switch, and one track. Various switches such as a rewind switch, a fast forward switch, and a rewind switch are provided. The remote controller 7 is provided with an infrared signal output unit 16 that outputs an infrared signal corresponding to the operated switch when each switch is operated.

  A control board 20 is incorporated in the housing 11, and the control board 20 is provided with a CPU (control unit) 21 that controls the driving of the DVD player 3, an adjustment IC (adjustment means) 22, and the like. ing. A player unit 14 and an adjustment IC 22 are connected to the CPU 21.

  A player light receiving sensor (other input unit) 23 that receives an infrared signal output from the infrared signal output unit 16 of the remote controller 7 is provided on the front surface of the housing 11 (the surface on which the disc tray 13 is exposed). The player light receiving sensor 23 is connected to the adjustment IC 22 and inputs the received infrared signal to the adjustment IC 22. Further, on the front surface of the housing 11, there are an LCD, an open / close switch for opening / closing the disk tray 13, a playback switch, a stop switch, a pause switch, a 1-track fast forward switch, a 1-track rewind switch, a fast-forward switch, a rewind switch, etc. Various switches and the like (not shown) are provided, and these switches are connected to the CPU 21. The CPU 21 controls driving of the player unit 14 based on signals input from the switches.

  The infrared light receiving unit 4 is provided with a unit light receiving sensor 25 for receiving an infrared signal output from the remote controller 7 on the front surface of a main body 4a formed in a box shape smaller than the DVD player 3. A connection cable 26 is connected to the infrared light receiving unit 4, and a connection plug 27 (see FIG. 3) is attached to the tip of the connection cable 26. As will be described in detail later, when the DVD player 3 and the infrared light receiving unit 4 are connected using the connection plug 27, the infrared signal received by the unit light receiving sensor 25 is input to the adjustment IC 22.

  As shown in FIG. 3, a connection jack (a preset input unit) 28 for connecting to the infrared light receiving unit 4 is provided on the rear surface of the housing 11. The connection jack 28 is attached to a connection board 29 (see FIGS. 2 and 4), and the connection board 29 is connected to the control board 20.

  As shown in FIGS. 3 and 4, in the connection jack 28, an insertion port 28b into which the insertion shaft 27a of the connection plug 27 is inserted is formed in the main body 28a. Two positioning bosses 28c for positioning the connection jack 28 on the connection substrate 29 are formed on the lower surface of the main body 28a, one on each side.

  The connection plug 27 is attached to the distal end of the connection cable 26 connected to the infrared light receiving unit 4. When the insertion shaft 27a of the connection plug 27 is inserted into the insertion port 28b, the DVD player 3 and the infrared light reception unit 4 are connected. The infrared signal received by the infrared light receiving unit 4 is input to the adjustment IC 22 via the connection cable 26, the connection plug 27, the connection jack 28, the second metal plate 32, and the connection substrate 29.

  Inside the connection jack 28, a metal first metal plate 31 connected to the connection substrate 29 and an elastically deformable thin metal plate second metal plate 32 connected to the connection substrate 29 are arranged. ing. The second metal plate 32 is disposed outside the first metal plate 31. The first and second metal plates 31 and 32 protrude from the lower surface of the main body 28 a, and are connected to the connection substrate 29 by soldering the protruding portions to the connection substrate 29.

  The second metal plate 32 is formed in a substantially U shape, and one side thereof is in contact with the first metal plate 31. The contact side 32a of the second metal plate 32 that contacts the first metal plate 31 is a convex contact portion 32b that contacts the insertion shaft 27a of the contact plug 27 when the connection plug 27 is inserted into the insertion port 28b. Is formed. The rear side of the contact side 32 a is in contact with the first metal plate 31. The second metal plate 32 is attached to the inside of the connection jack 28 so that the contact side 32a can be freely deformed.

  As shown in FIG. 5, when the insertion shaft 27a of the connection plug 27 is inserted into the insertion port 28b of the connection jack 28, the contact portion 32b contacts the insertion shaft 27a and the contact side 32a is outward (right side in FIG. 5). )). When the contact side 32a is deformed outward, the contact between the contact side 32a and the first metal plate 31 is released. Further, when the insertion shaft 27 a is pulled out from the insertion port 28 b, the contact side 32 a is deformed leftward in FIG. 5 and returns to the original shape (see FIG. 4), and the contact side 32 a contacts the first metal plate 31.

  Electricity flows through the second metal plate 32, and electricity flows through the first metal plate 31 via the second metal plate 32. The connection substrate 29 is provided with a detection circuit 35 that detects that electricity flows through the first metal plate 31.

  When the insertion shaft 27a is not inserted into the insertion port 28b (see FIG. 4), the first metal plate 31 and the contact side 32a are in contact with each other, and the first metal plate 31 is interposed via the second metal plate 32. Electricity flows through At this time, the detection circuit 35 detects that electricity flows through the first metal plate 31.

  On the other hand, when the insertion shaft 27a is inserted into the insertion port 28b (see FIG. 5), the contact between the first metal plate 31 and the contact side 32a is released, and electricity does not flow through the first metal plate 31. . At this time, the detection circuit 35 detects that electricity is not flowing through the first metal plate 31. When detecting that electricity is not flowing through the first metal plate 31, the detection circuit 35 outputs an insertion detection signal indicating that the insertion shaft 27 a is inserted into the insertion port 28 b to the adjustment IC 22. When it is detected that electricity is flowing through the first metal plate 31, a non-insertion detection signal indicating that the insertion shaft 27a is not inserted into the insertion port 28b is output to the adjustment IC 22.

  When the non-insertion detection signal is input from the detection circuit 35 (the connection plug 27 is not inserted), the adjustment IC 22 outputs only the infrared signal input from the player light receiving sensor 23 to the CPU 21. On the other hand, when the insertion detection signal is input from the detection circuit 35 (the connection plug 27 is inserted), the adjustment IC 22 has a connection cable 26, a connection plug 27, a connection jack 28, a second metal plate 32, and a connection. Only the infrared signal input from the infrared light receiving unit 4 through the substrate 29 is output to the CPU 21. That is, the adjustment IC 22 does not output the infrared signal input from the player light receiving sensor 23 to the CPU 21 when the insertion detection signal is input from the detection circuit 35. In the present embodiment, the detection means for detecting that the infrared light receiving unit 4 is connected to the connection jack 28 includes a first metal plate 31, a second metal plate 32, and a detection circuit 35.

  The CPU 21 controls driving of the player unit 14 based on the signal input from the adjustment IC 22. When data recorded on a DVD is reproduced by the optical pickup 12, the reproduced data (audio data and image data) is input to a signal processing unit (not shown), and the signal processing unit monitors based on the input data. 5 reproduces and displays the image data and outputs sound data from the speaker 6.

  The operation of the home theater system 2 configured as described above will be described in detail with respect to the operation when the DVD player 3 is operated using the remote controller 7. As shown in FIG. 1, a position where the player light receiving sensor 23 becomes invisible when the user is viewing the monitor 5 of the DVD player 3 (a position where an infrared signal from the remote control 7 does not reach the player light receiving sensor 23). When the user operates the DVD player 3, the user needs to move to a position where the infrared signal from the remote controller 7 reaches the player light receiving sensor 23. The line of sight is off. Therefore, when the DVD player 3 is installed at the position as described above, the insertion shaft 27a of the connection plug 27 is inserted into the insertion port 28b of the connection jack 28, and the infrared light receiving unit 4 is placed near the monitor 5 (for example, the upper side). ). At this time, the infrared light receiving unit 4 is installed at a position and an orientation in which the unit light receiving sensor 25 is visible when the user is viewing the monitor 5.

  The reason for installing the DVD player 3 at a position where the player light receiving sensor 23 is not visible when the user is viewing the monitor 5 is that the LCD of the DVD player 3 is visible when the monitor 5 is viewed. For example, it may be distracted when light is irradiated from there. The present invention can also be applied to the case where the DVD player 3 is installed in a room different from the room where the infrared light receiving unit 4, the monitor 5 and the speaker 6 are installed.

  When the connection plug 27 is inserted into the insertion port 28 b, the contact between the first metal plate 31 and the contact side 32 a is released, and electricity does not flow through the first metal plate 31. The detection circuit 35 outputs an insertion detection signal to the adjustment IC 22 when it is detected that electricity is not flowing through the first metal plate 31.

  When the insertion detection signal is input from the detection circuit 35 (the connection plug 27 is inserted), the adjustment IC 22 has a connection cable 26, a connection plug 27, a connection jack 28, a second metal plate 32, and a connection substrate 29. The infrared signal input from the infrared light receiving unit 4 via the is output to the adjustment IC 22. As a result, the user can operate the DVD player 3 by operating the remote controller 7 toward the infrared light receiving unit 4 installed above the monitor 5, so that the DVD player can be operated without removing the line of sight from the monitor 5. 3 can be operated.

  Further, even when the DVD player 3 is installed at a position as shown in FIG. 1, the infrared rays output from the remote controller 7 are reflected on the wall of the room where the home theater system 2 is installed and received by the player of the DVD player 3. The sensor 23 may receive light. Also in this case, when the connection plug 27 is inserted into the insertion port 28b (the DVD player 3 and the infrared light receiving unit 4 are connected), the insertion detection signal is input from the detection circuit 35. The IC 22 does not output the player infrared signal input from the player light receiving sensor 23 to the CPU 21. That is, when the DVD player 3 and the infrared light receiving unit 4 are connected, only the signal received by the unit light receiving sensor 25 of the infrared light receiving unit 4 is input to the CPU 21.

  Thus, the CPU 21 can operate the DVD player 3 based on both the signal received by the unit light receiving sensor 25 of the infrared light receiving unit 4 and the signal received by the player light receiving sensor 23 of the DVD player 3. In other words, the DVD player 3 is not operated twice by one operation of the remote controller 7.

  A type in which an infrared signal received from both the player light receiving sensor 23 and the unit light receiving sensor 25 is input to the CPU 21 when the infrared signal output from the infrared signal output unit 16 when the remote controller 7 is operated is received by both the player light receiving sensor 23 and the unit light receiving sensor 25. In this DVD player, for example, when a one-track fast-forward switch of the remote controller 7 is operated, one-track fast-forward may be performed twice. In the home theater system 2 that implements the present invention, the infrared signal output from the infrared signal output unit 16 when the one-track fast-forward switch of the remote controller 7 is operated is received by both the player light-receiving sensor 23 and the unit light-receiving sensor 25. Even in this case, since only the infrared signal received by the unit light receiving sensor 25 is input to the CPU 21, one track fast forward is performed only once.

  As described above, when the connection plug 27 is inserted into the insertion port 28 b (the DVD player 3 and the infrared light receiving unit 4 are connected), the adjustment IC 22 has the unit light receiving sensor 25 of the infrared light receiving unit 4. Since only the infrared signal input from is output to the CPU 21, it is possible to prevent the CPU 21 from malfunctioning due to the simultaneous input of two infrared signals to the CPU 21. Further, even when both the player light receiving sensor 23 and the unit light receiving sensor 25 of the DVD player 3 receive infrared signals, the CPU 21 drives the DVD player 3 based on the infrared signals received by the player light receiving sensor 23. Since the drive of the DVD player 3 is controlled only based on the infrared signal input from the unit light receiving sensor 25 without being controlled, the drive of the DVD player 3 is controlled twice by operating the remote controller 7 once. This can be prevented.

  In addition, the first metal plate 31, the second metal plate 32, and the detection circuit 35 are used to detect that the connection plug 27 has been inserted into the insertion port 28b, and that the connection plug 27 has been inserted into the insertion port 28b. If detected, the adjustment IC 22 outputs only the infrared signal input from the unit light receiving sensor 25 of the infrared light receiving unit 4 to the CPU 21. Therefore, only by inserting the connection plug 27 into the insertion port 28b, Only the infrared signal input from the unit light receiving sensor 25 can be output to the CPU 21. As a result, when an infrared signal is received by both the player light receiving sensor 23 and the unit light receiving sensor 25, a member such as a changeover switch for switching which input infrared signal is input to the CPU 21 becomes unnecessary, and the number of parts is reduced. The cost can be reduced, and the trouble of switch operation can be saved.

  In the above embodiment, the player light receiving sensor 23 and the connection jack 28 are provided as input units for inputting signals from the outside to the DVD player 3, but the number of input units is limited to two. Without limitation, three or more may be provided. Also in this case, when the connection plug 27 is inserted into the connection jack 28 (the DVD player 3 and the infrared light receiving unit 4 are connected), the adjustment IC 22 is connected to the unit light receiving sensor 25 of the infrared light receiving unit 4. Only the input infrared signal is output to the CPU 21.

  In addition, an infrared signal light receiving sensor is provided on the rear surface of the housing 11 of the DVD player 3 in place of the connection jack 28, and an infrared signal output unit is provided in the infrared light receiving unit 4 in place of the connection cable 26 and the connection plug 27. When a signal from the infrared signal output unit of the infrared light receiving unit 4 is received by the infrared signal light receiving sensor, it is detected by a detection sensor provided in the DVD player 3, and when this detection sensor detects it, The adjustment IC 22 may output only the infrared signal input from the infrared light receiving unit 4 to the CPU 21.

  Further, in the above embodiment, the infrared light receiving unit 4 and the monitor 5 are provided separately, but the infrared light receiving unit 4 may be incorporated in the monitor 5.

It is an external appearance perspective view of the home theater system which implemented this invention. It is a block diagram which shows the electric constitution of a home theater system. It is a back perspective view of a DVD player. It is the front view which shows a connection jack, a connection board | substrate, a 1st metal plate, and a 2nd metal plate, a top view, and a right view. It is a top view which shows the connection jack of the state which inserted the insertion shaft of the connection plug in the insertion port, the 1st metal plate, and the 2nd metal plate.

Explanation of symbols

2 Home theater system (electronic equipment control system)
3 DVD player (electronic equipment)
4 Infrared receiver unit (external device)
5 Monitor (image display device)
6 Speaker (Audio output device 7 Remote control (Signal output device)
12 Optical pickup 14 Player unit (disc playback unit)
20 control board 21 CPU (control unit)
22 IC for adjustment (adjustment means)
23 Player light receiving sensor (other input unit)
25 Unit light reception sensor 27 Connection plug 27a Insert shaft 28 Connection jack (preset input section)

Claims (8)

A plurality of input units to which external signals are input;
A drive unit for driving based on signals input to the plurality of input units;
In an electronic apparatus comprising: a control unit that receives signals from the plurality of input units and controls driving of the driving unit based on the input signals;
When an external device that outputs an externally input signal is connected to one preset input unit of the plurality of input units, the external device inputs the preset input unit. An electronic apparatus comprising: adjusting means for inputting the received signal to the control unit and adjusting the signal input to another input unit so as not to be input to the control unit. A detecting means for detecting that the external device is connected to the preset input unit;
The electronic device according to claim 1, wherein the adjustment unit adjusts a signal input to the other input unit so as not to be input to the control unit in response to detection by the detection unit.   3. The electronic device according to claim 1, wherein the preset input unit is configured by a jack into which a plug provided in the external device is inserted. A housing for housing the drive unit and the control unit;
4. The electronic apparatus according to claim 1, wherein the preset input unit is provided on a rear surface of the casing.   The electronic apparatus according to claim 4, wherein at least one of the other input units is provided on a front surface of the housing.   The electronic apparatus according to claim 5, wherein the input unit provided on the front surface of the housing is configured by an infrared light receiving sensor that receives an infrared signal from the outside. An electronic device according to any one of claims 1 to 6,
The external device connected to the preset input unit;
A signal output device that outputs a signal input to the other input unit and the external device, and
The said control part controls the drive of the said drive part based on the signal input into the said preset input part from the said external apparatus, The electronic device control system characterized by the above-mentioned. The drive unit is composed of a disk reproduction unit having an optical pickup for reproducing data recorded on the optical disk,
8. The electronic device control system according to claim 7, further comprising an audio output device and / or an image display device that outputs data reproduced by the optical pickup.

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