JPH10126703A - Television receiver with built-in information recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain safety of viewing a television receiver by inhibiting application of power to the television receiver when a built-in DVD player is not in the receiver due to repair or the like and detecting mounting of a forming to close the opening through which a DVD disk is inserted so as to apply power to the television receiver. SOLUTION: Upon the receipt of light from a light emitting element 11, a light receiving element 12 sets a level of a port of a television section microcomputer 13 to a low level. When the level of the port is low, the microcomputer 13 makes a transistor(TR) 16 conductive to allow application of power via an AC relay 15 and inhibits application of power when the level of the port is at a high level. The light from the light emitting element 11 is reflected in part of the DVD player and then enters the light receiving element 12, and when the DVD player is not in the television receiver, power application is not allowed. When a forming is mounted, since part of the forming reflects the light and it enters the light receiving element 12, power application is allowed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an information recording / reproducing apparatus, for example, a digital video disk player (DVD).
Alternatively, in a television receiver including any one of a video tape recorder (VTR) and a hard disk (HDD), when the information recording / reproducing device is removed from the television receiver for repair. It concerns safety devices.

[0002]

2. Description of the Related Art Conventionally, when an information recording / reproducing apparatus is detached from a television receiver, a built-in information recording / reproducing apparatus for automatically judging whether or not a shaped article for closing an opening for inserting and removing a recording medium of the information recording / reproducing apparatus is attached. As a television receiver, one described in Japanese Patent Application Laid-Open No. 8-212766 is known. Here, a conventional television receiver with a built-in information recording / reproducing device will be briefly described.

FIG. 6 shows a conventional information recording / reproducing apparatus (VT).
R) A block diagram of the built-in television receiver is shown.
In FIG. 6, reference numeral 61 denotes a metal fitting for preventing an opening for inserting and removing a video tape from opening, 62 a television microcomputer (microcomputer), 63 an AC relay,
64 is a power supply plug, 65 is an AC relay drive transistor, 66 is a television ground, 67 is a VTR microcomputer, and 68 is a communication IIC line connector for the television microcomputer and the VTR microcomputer. During normal image reception, the television unit microcomputer 62 and the VT
The R unit microcomputer 67 sends and receives signals via the IIC line 68. When the metal fitting 61 is connected (attached) at the time of VTR repair, 0 V is supplied to the microcomputer of the television unit.
Is transmitted, and if not connected, 5V is transmitted. When the VTR section is taken out of the television receiver for repair, the television section microcomputer 62 sets the communication IIC
It is determined that there is no response on the line 8, and when the metal fitting 61 is not connected (5V), the setting is made so that the AC relay 63 is turned off. Further, when the metal fitting 61 is connected (0 V), the setting is made so that the AC relay driving transistor 65 is turned on and the AC relay 63 is turned on. With the above configuration, when the VTR unit is not in the cabinet of the television receiver, the video tape slot is not opened, and even if the user forgets to connect the bracket 61, the power of the television receiver body is turned off, and safety is ensured. You.

[0004]

However, in the above configuration, the television receiver main unit and the microcomputer of the information recording / reproducing device must communicate with each other, and the television receiver main unit and the information recording / reproducing device need to communicate with each other. However, it cannot be used for those connected only by the power supply line and the signal line. Also, even when the television receiver itself and the microcomputer of the information recording / reproducing device are in communication, unless the microcomputer of the information recording / reproducing device has software built for the built-in type, the microcomputer of the television receiver is When a certain command is sent to the microcomputer of the information recording / reproducing device, a signal indicating that the command has been received is not sent from the microcomputer of the information recording / reproducing device to the microcomputer of the television receiver. It cannot be determined from the communication line whether the receiver is detached from the receiver or built-in. Therefore, the microcomputer software of the information recording / reproducing apparatus had to be newly provided exclusively for the built-in type.
Therefore, the microcomputer software of the information recording / reproducing device cannot be used as it is for a single item of the information recording / reproducing device.
There were scheduling issues and cost issues.

[0005]

To solve the above-mentioned problems, a microcomputer of the information recording / reproducing apparatus and a microcomputer of the television receiver are provided. Instead of using the communication line, it is possible to make a determination by a circuit that automatically determines whether or not a shaped article that blocks an opening for inserting and removing a recording medium that is opened when the information recording / reproducing apparatus is removed is attached.

According to the present invention, even when the television receiver main body and the microcomputer of the information recording / reproducing apparatus are not connected by a communication line, the information recording / reproducing apparatus is opened when the information recording / reproducing apparatus is detached, and the opening for taking in and out the recording medium is closed. It is possible to automatically determine whether or not a product is attached, and determine whether the power of the television receiver can be safely turned on.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, when an information recording / reproducing apparatus is detached from a television receiver, an opening for inserting and removing a recording medium of the information recording / reproducing apparatus must be closed. For example, it is a television receiver with a built-in information recording / reproducing device in which the power of the television receiver main body is not turned on, and the microcomputer of the television receiver main body and the microcomputer of the information recording / reproducing device are not connected by a communication line. Even if the information recording / reproducing device is removed, it can be opened automatically when the information recording / reproducing device is removed, and it can be automatically determined whether or not a shaped article that covers the opening for inserting and removing the recording medium has been attached, and it can be determined whether the television receiver can be safely turned on. Has an action.

Next, the invention according to claim 2 of the present invention relates to a microcomputer of a television receiver, an element for generating light of a certain wavelength, an element capable of receiving the light, or the light generating element. 2. A shaped product which has an integrated light receiving element and a shaped product capable of closing the opening according to claim 1, wherein the shaped product closes the opening when the information recording / reproducing device is removed from the television receiver. By attaching, the light emitted from the light emitting element is reflected by the shaped article that covers the opening, received by the light receiving element, and the signal output from the light receiving element is determined by the microcomputer of the television receiver, A television receiver with a built-in information recording / reproducing device, wherein the power of the television receiver is not turned on unless light is received by the light receiving element. Even when the main body of the transceiver and the microcomputer of the information recording / reproducing device are not connected by a communication line, when the information recording / reproducing device is removed, the opening for taking in and out the recording medium is opened. This has the effect of automatically determining whether or not the television receiver has been attached, determining whether or not the power of the television receiver can be safely turned on, and then turning on the power.

Next, the invention according to claim 3 of the present invention is directed to a microcomputer of a television receiver, an element for generating light of a certain wavelength, an element capable of receiving the light, and an aperture according to claim 1. When the information recording / reproducing device is removed from the television receiver,
By attaching a shaped article that covers the opening, light emitted from the light emitting element is blocked by the shaped article that covers the opening, and a signal output from the light receiving element is determined by a microcomputer of a television receiver, A television receiver with a built-in information recording / reproducing device, wherein the power of the television receiver body is not turned on if light is received by the light receiving element. Even when the microcomputer of the information recording / reproducing device is not connected via the communication line, the opening for taking out the recording medium is opened when the information recording / reproducing device is removed, so whether a shaped article that covers the opening is attached. This has the effect of automatically determining whether or not the television receiver can be safely turned on before turning on the power.

Next, the invention according to claim 4 of the present invention comprises a microcomputer of the television receiver, a switch for shorting the port of the microcomputer to ground, and a shaped article capable of closing the opening. Then, when the information recording / reproducing device was removed from the television receiver, the information recording / reproducing device was removed by attaching the shaped article that covers the opening, pressing the switch, and shorting the microcomputer port to ground. It is a television receiver with a built-in information recording / reproducing device characterized in that it is determined whether it is safe to operate only the television receiver at a time, and then the television receiver is turned on. Detach the information recording / reproducing device even when the receiver main unit and the microcomputer of the information recording / reproducing device are not connected by the communication line. At that time, since the opening for taking in and out the recording medium opens, it is automatically determined whether or not a shaped article that covers the opening is attached, and it is determined that the power of the television receiver can be safely turned on before turning on the power. Has an action.

(Embodiment 1) An embodiment of the present invention described in claims 1 and 2 of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram of a television receiver with a built-in information recording / reproducing device, and FIG. 2 is a physical diagram of an information recording / reproducing device and a shaped article for closing an opening for taking a recording medium in and out, a light emitting element and a light receiving element. Mounting position.

In FIG. 1, reference numeral 11 denotes a light emitting element;
Denotes a light receiving element, 13 denotes a microcomputer of a television unit, 14 denotes a power plug, 15 denotes an AC relay, and 16 denotes an AC relay driving transistor.

In FIG. 2, reference numeral 21 denotes the shaped product, and reference numeral 22 denotes an information recording / reproducing apparatus. The light emitting element 11 is always supplied with a voltage to emit light, and the light receiving element 12 is set to a port of the microcomputer of the television section when the light from the light emitting element enters,
When the light does not enter, the microcomputer operates to set the microcomputer port to HI. When the microcomputer port is at the LO level, the AC relay drive transistor 16
The current of N flows to the base of the transistor, and when the microcomputer port is HI, software of the microcomputer is set up so that the current does not flow to the base of the transistor unconditionally. Also, if the light emitting element and the light receiving element are arranged as shown in FIG. 2, when the information recording / reproducing device is included, light of the light emitting element is reflected by a part of the information recording / reproducing device, The microcomputer enters the light receiving element, the port of the microcomputer becomes LO, and the AC relay driving transistor becomes O.
N, the AC relay 15 is also turned on, and the power of the television receiver with the built-in information recording / reproducing device is turned on. Further, even if the information recording / reproducing device breaks down, the information recording / reproducing device is removed, and the power of the television receiver is turned on, the light of the light emitting element does not enter the light receiving portion because there is no reflection. , The microcomputer port becomes HI, the AC relay driving transistor is turned off, and the AC relay 15 is also turned off.
And the television receiver does not need power. When the shaped article 21 is correctly attached as shown in FIG. 2, the light of the light emitting element is reflected by the shaped article, light enters the light receiving element, the microcomputer port becomes LO, and the AC relay driving transistor is ON, AC relay 15 ON
Therefore, the power of the television receiver can be turned on.

According to this configuration, even if the information reproducing apparatus breaks down and is removed, if the shaped article that closes the opening for inserting and removing the medium of the information recording apparatus is correctly attached,
It can be viewed with only a television receiver. In addition, it is possible to obtain an advantage that the circuit for detecting whether or not the opening is covered can be constituted by a circuit only for the television receiver.

(Embodiment 2) An embodiment of the present invention described in claims 1 and 3 of the present invention will be described below with reference to FIGS.

FIG. 3 shows the information recording / reproducing apparatus and the physical mounting positions of the shaped article, the light emitting element, and the light receiving element which block the opening for taking the recording medium in and out.

In FIG. 3, reference numeral 31 denotes the shaped product, and reference numeral 32 denotes an information recording / reproducing apparatus. The light emitting element 11 is always supplied with a voltage to emit light, and the light receiving element 12 is set to a port of the microcomputer of the television section when the light from the light emitting element enters,
When the light does not enter, the microcomputer operates to set the microcomputer port to HI. When the microcomputer port is set to HI, the AC relay drive transistor 16 is turned on.
The microcomputer software is set up so that the current flowing to the base of the transistor does not flow unconditionally when the microcomputer port is in the LO state. Further, if the light emitting element and the light receiving element are arranged as shown in FIG. 3, when the information recording / reproducing apparatus is installed, the light of the light emitting element is blocked by the information recording / reproducing apparatus, and The light of the light emitting element does not enter, the port of the microcomputer becomes HI, the AC relay drive transistor is turned on, the AC relay 15 is also turned on, and the power of the television receiver with built-in information recording / reproducing device is turned on. Also, the information reproducing device breaks down, removes the information reproducing device,
Even if an attempt is made to turn on the power of the television receiver, there is no longer any light that is blocked by the light emitting element.
And the AC relay drive transistor is turned off,
The AC relay 15 is also turned off, and the television receiver does not need power. Also, as shown in FIG.
1, the light of the light emitting element is cut off by the shaped product, the light of the light emitting element does not enter the light receiving element, the microcomputer port becomes LO, the AC relay driving transistor is turned on, and the AC relay is turned on. 15 is also turned on, so that the power of the television receiver can be turned on.

According to such a configuration, even if the information recording / reproducing apparatus breaks down and is removed, if the shaped article that covers the opening for inserting and removing the medium of the information recording apparatus is correctly attached,
It can be viewed with only a television receiver. In addition, it is possible to obtain an advantage that the circuit for detecting whether or not the opening is covered can be constituted by a circuit only for the television receiver.

(Embodiment 3) Hereinafter, an embodiment of the present invention described in claims 1 and 3 of the present invention will be described with reference to FIG.

FIG. 4 is a block diagram of a television receiver with a built-in information recording / reproducing device, and FIG. 5 is a diagram showing the information recording / reproducing device and a physical mounting position of a molded product for opening and closing a recording medium and a push switch. is there.

In FIG. 4, reference numeral 41 is a push switch, 43 is a microcomputer of a television unit, 44 is a power plug, 45 is an AC relay, 46 is an AC relay driving transistor, 47 is an information recording / reproducing device, 48 is a signal line, 49 is a connection connector.

In FIG. 5, reference numeral 51 denotes the shaped product, and 52 denotes an information recording / reproducing apparatus. When the microcomputer port to which the push switch 41 is connected is at LO, the microcomputer 43 of the television receiver sets the AC relay driving transistor 4
6 turns on a current to turn on the base of the AC relay drive transistor 46. When the microcomputer port is at the HI level, current does not flow unconditionally to the base of the transistor.
The software of the microcomputer is set up. When the information recording / reproducing device is in the television receiver, the television receiver and the information recording / reproducing device are connected by the connection connector 49. Therefore, since the port of the microcomputer is short-circuited to the ground, it becomes LO, the AC relay drive transistor is turned on, the AC relay 15 is also turned on, and the power of the television receiver with built-in information recording / reproducing device is turned on. Also, when the information reproducing apparatus breaks down, the information reproducing apparatus is removed, and the power of the television receiver is turned on, the connection connector is opened. Further, since the push switch 41 is not pressed, the microcomputer port is pulled up to the power supply voltage and becomes HI, and the AC relay driving transistor is turned off.
F, the AC relay 45 is also turned off, and the television receiver does not need power. When the shaped article 51 is correctly mounted, the push switch is pressed by the shaped article and turned on even when the connection connector is in an open state. Since the microcomputer port becomes LO, the AC relay driving transistor is turned on, and the AC relay 15 is also turned on, the power of the television receiver can be turned on.

According to such a configuration, even if the information recording / reproducing apparatus breaks down and is removed, if a shaped article for closing the opening for inserting and removing the medium of the information recording apparatus is properly attached,
It can be viewed with only a television receiver. In addition, it is possible to obtain an advantage that the circuit for detecting whether or not the opening is covered can be constituted by a circuit only for the television receiver.

[0025]

As described above, according to the present invention,
Information recording / reproducing apparatus For example, in a repair service for a DVD player or the like, the user can view the television receiver without a DVD player in the television receiver.
In the absence of a VD player, if the user forgets to attach a shaped article that is attached so as not to open the opening for inserting or removing a DVD disk, the television receiver can be prevented from turning on.

Further, even when the television receiver body and the microcomputer of the information recording / reproducing apparatus are not connected by a communication line, a shaped article which is opened when the information recording / reproducing apparatus is removed and which covers the opening for taking in and out the recording medium is provided. It is automatically determined whether or not the television receiver is attached, and it can be determined whether or not the power of the television receiver can be safely turned on.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a television receiver with a built-in information recording / reproducing device according to Embodiment 1 of the present invention.

FIG. 2 is a schematic configuration diagram showing a television receiver with a built-in information recording / reproducing device according to Embodiment 1 of the present invention.

FIG. 3 is a schematic configuration diagram showing a television receiver with a built-in information recording / reproducing device according to Embodiment 2 of the present invention.

FIG. 4 is a schematic block diagram of a television receiver with a built-in information recording / reproducing device according to Embodiment 3 of the present invention.

FIG. 5 is a schematic block diagram showing a television receiver with a built-in information recording / reproducing device according to Embodiment 3 of the present invention.

FIG. 6 is a schematic block diagram of a conventional television receiver with a built-in information recording / reproducing device.

[Explanation of symbols]

 Reference Signs List 11 light emitting element 12 light receiving element 13, 43 microcomputer 14 power plug 15 AC relay 16, 46 AC relay driving transistor 21, 31, 47, 51 shaped product 22, 32, 52 information recording / reproducing device 41 push switch 44 power plug 45 AC relay 48 signal line 49 connector

Claims (4)

[Claims] 1. When the information recording / reproducing device is removed from the television receiver, the power of the television receiver main body cannot be turned on unless the opening for inserting and removing the recording medium of the information recording / reproducing device is closed. A television receiver with a built-in information recording / reproducing device. 2. A television receiver comprising: a microcomputer of a television receiver; an element for generating light of a certain wavelength; an element capable of receiving the light; and a shaped article for closing an opening for inserting a recording medium. A television receiver with a built-in information recording / reproducing device, wherein when the information recording / reproducing device is removed, the power of the television receiver main body is not turned on unless light is received by the light receiving element. 3. A television comprising a microcomputer of a television receiver, an element for generating light of a certain wavelength, an element capable of receiving the light, and a shaped article capable of closing an opening for inserting a recording medium. From the receiver, when the information recording / reproducing device is removed, by attaching a shaped article that covers the opening, light emitted from the light generating element is blocked by the shaped article that covers the opening, and output from the light receiving element. A signal to be transmitted is determined by a microcomputer of the television receiver, and if the light is received by the light receiving element, the power of the television receiver is not turned on. John receiver. 4. A microcomputer of a television receiver, a switch for shorting a port of the microcomputer to ground,
Having a shaped article that can close the recording medium insertion opening, and from the television receiver, when removing the information recording / reproducing device, by attaching the shaped article that closes the opening, presses the switch, By short-circuiting the microcomputer port to ground, it is determined whether the television receiver alone can operate safely even when the information recording / reproducing device is removed, and the television receiver itself is turned on. Television receiver with built-in information recording / reproducing device.