KR20070064793A - Apparatus and method for cutting down an electric power in av equipment - Google Patents

Abstract

An apparatus and a method for saving the power consumption of an AV device having a karaoke function are provided to prevent unnecessary power consumption by blocking power supplied to a karaoke processor which processes a signal inputted from a microphone according to whether the microphone is connected. A microphone(100a) connects to a microphone connecting jack(100). The microphone connecting jack(100) outputs a predetermined voltage according to the connection of the microphone(100a). A power unit(106) supplies power necessary for driving an AV device and a karaoke processor(102). A switching unit(104), installed between the power unit(106) and the karaoke processor(102), controls the power supply to the karaoke processor(102) according to a switching signal. A microcomputer(108) controls the switching unit(104) according to the voltage supplied from the microphone connecting jack(100), and supplies the power to the karaoke processor(102) or blocks the power supply.

Description

Apparatus and method for reducing power consumption of AW equipment with karaoke function {APPARATUS AND METHOD FOR CUTTING DOWN AN ELECTRIC POWER IN AV EQUIPMENT}

1 is a block diagram showing an apparatus for reducing power consumption in an AV device according to the present invention;

2 is a flowchart illustrating an operation process of an apparatus for reducing power consumption of an AV device according to the present invention.

<Description of the code | symbol about the principal part of drawing>

100: microphone connection jack 100a: microphone

102: karaoke processor 104: switching unit

106: power supply 108: microcomputer

110: OSD unit

The present invention relates to an AV device, and more particularly, to an apparatus and method for reducing power consumption of an AV device having a karaoke function.

In commonly used AV equipment, Compact Disc Graphic Player (CDGP), Laser Disc Player (LDP), Video Cassette Tape Recorder (VCR) and DVD Player (DVDP) In an image output device such as a CD, a laser beam is irradiated onto an information recording medium such as a compact disc (CD), a laser disc (LD), a DVD disc, a video cassette tape or the like, and the image information recorded by operating a magnetic head is used. Reads and reproduces the video signal through a television, and records information such as compact discs (CDs), DVD discs, and cassette tapes in audio devices such as compact disc players (CDPs) and DVD players. The audio information read out from the medium and the audio signal from the video output device Values are to be output via the speakers of the speaker or TV.

Recently, a multi-component device having a plurality of devices that perform independent functions in one system has been released. Such a composite device can facilitate the operation by gathering a part performing a common function as one, there is an advantage that can increase the spatial efficiency than using each device separately.

A composite device is also called a combination system or a combo system. A typical example of such a combination system is a DVDP / VCR combination system, which is a composite video playback device in which a DVD player function and a VCR function are realized as one system. Can be mentioned.

In addition, a PVR has been developed as a personal recording / playback apparatus. The PVR has a large capacity storage medium (for example, a hard disk driver (HDD)) therein for storing recorded data (ie, broadcast program data). And a function of reproducing data stored in such a storage medium.

One of the additional functions of the above AV device is a complex device having a built-in karaoke function, which allows a user to sing a desired song according to the accompaniment in the home even if they do not go to a commercial facility equipped with a karaoke system such as karaoke. have.

In order to implement such a function, such an AV device is essentially provided with a microphone jack, and by connecting a microphone to the microphone jack, the user can record his or her voice in a predetermined storage medium or through a function such as karaoke. The device can be used as a karaoke device.

However, conventional AV devices having a microphone jack have a problem in that power consumption is severe because power is always supplied to a circuit of an audio unit, that is, a karaoke unit, connected to the microphone jack.

In particular, since the power consumption of AV devices is increasing with the introduction of multifunctional AV devices in recent years, many developers continue to research to reduce the power consumption of AV devices.

An object of the present invention has been made as a result of the above research, by cutting off the power supplied to the karaoke processor to process the signal input from the microphone in accordance with the presence or absence of a microphone, karaoke function that can prevent unnecessary power consumption The present invention provides an apparatus and method for reducing power consumption of an AV device.

In order to achieve the above object, the present invention provides an apparatus for reducing power consumption in an AV device having a karaoke processor for processing a voice signal input from a microphone, wherein the microphone is connectable, and according to the connection of the microphone, A microphone connection jack for outputting a set voltage, a power supply unit for supplying power for driving the AV device and the karaoke processor, a switching unit installed between the power supply unit and the karaoke processor to control power supply to the karaoke processor, and And a microcomputer controlling the switching unit according to a voltage applied from a microphone connection jack to supply or cut off power to the karaoke processor.

The present invention also provides a method for reducing power consumption in an AV device including a karaoke processor that processes a voice signal input from a microphone connected to a microphone connecting jack, determining whether a predetermined voltage is applied from the microphone connecting jack; As a result of the determination, supplying power to the karaoke processor when the preset voltage is applied; and as a result of the determination, cutting off the power supplied to the karaoke processor when the preset voltage is not applied; Blocking the supply of power to the karaoke processor and displaying a preset OSD screen on the display device.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating an apparatus for reducing power consumption of an AV device according to the present invention.

Referring to FIG. 1, an apparatus for reducing power consumption of an AV device includes a microphone connection jack 100 to which a microphone 100a is connected, a karaoke processor 102, a switching unit 104, a power supply unit 106, a microcomputer 108, and an OSD. The unit 110 includes.

The karaoke processor 102 amplifies a voice signal input from the microphone 100a connected to the microphone connecting jack 100, removes noise, and outputs it to a speaker not shown.

As the microphone 100a is connected, the microphone connecting jack 100 applies a predetermined power, for example, 5V, to the microcomputer 108.

The power supply unit 106 supplies the overall power required for driving the AV device, and in particular, the karaoke processor 102 supplies power through the switching unit 104 for the present invention.

The microcomputer 108 controls the overall functions of the AV device. In particular, the microcomputer 108 generates a switching signal according to the voltage applied from the microphone connecting jack 100 to cut off the power provided to the karaoke processor 102 or to the karaoke processor 102. Supply power. That is, when a voltage of 5V is applied from the microphone connecting jack 100, the microcomputer 108 applies the first switching signal to the switching unit 104 to supply power to the karaoke processor 102 to turn on the switching unit 104. Otherwise, in order to turn off the switching unit 104, the second switching signal is applied to the switching unit 104 to cut off the power supplied to the karaoke processor 102.

In addition, the microcomputer 108 applies a switching signal to the switching unit 104 and then selectively controls the OSD unit 110 to display a message such as "The karaoke system is not driven." The presence or absence of the connection of the microphone 100a may be indicated.

The switching unit 104 operates in response to a switching signal applied from the microcomputer 108, and cuts off the power supplied from the power supply unit 106 or cuts off the power applied from the power supply unit 106 according to the operation. ) To drive the karaoke processor 102.

The OSD unit 110 configures a predetermined message as an OSD screen under the control of the microcomputer 108 and displays it on the display device.

The operation of the power saving device of the AV device having the above configuration will be described with reference to FIG. 2.

2 is a flowchart illustrating a process of operating an apparatus for reducing power consumption of an AV device according to an exemplary embodiment of the present invention.

Referring to FIG. 2, when the AV device is driven (S200), the power supply unit 106 supplies power required for driving the AV device.

Thereafter, the microcomputer 108 determines whether a voltage is applied from the microphone connecting jack 100 to determine whether the microphone 100a is connected to the microphone connecting jack 100 (S202).

As a result of the determination in step S202, when a predetermined voltage or more is not applied from the microphone connecting jack 100, the microcomputer 108 generates a second switching signal and provides the second switching signal to the switching unit 104, and the switching unit 104 switches the second switching. By being turned off in response to the signal, power is not supplied to the karaoke processor 102 (S204, S206).

Afterwards, the microcomputer 108 controls the OSD unit 110 so that the karaoke system is not driven. Or, a message such as "No microphone is connected" is configured as an OSD screen and displayed on the display device (S208).

On the other hand, as a result of the determination in step S202, when a voltage of a predetermined voltage, for example 5V or more is applied from the microphone connecting jack 100, the microcomputer 108 generates a first switching signal to turn on the operation of the switching unit 104, The karaoke processor 102 is powered. As a result, the karaoke processor 102 operates normally.

According to the present invention, by supplying or cutting off power to the karaoke processor 102 according to whether the microphone 100a is connected to the microphone connecting jack 100, unnecessary power consumption can be reduced.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention cuts off power supplied to the karaoke processor that processes the signal input from the microphone according to whether the microphone is connected, thereby preventing unnecessary power consumption.

Claims (3)

A device for reducing power consumption in an AV device having a karaoke processor that processes a voice signal input from a microphone, A microphone connection jack capable of connecting the microphone and outputting a predetermined voltage according to the connection of the microphone; A power supply unit supplying power required for driving the AV device and karaoke processor; A switching unit installed between the power supply unit and the karaoke processor to control power supply to the karaoke processor according to a switching signal; A microcomputer that controls the switching unit according to the voltage applied from the microphone connection jack to supply or cut off power to the karaoke processor. Apparatus for reducing power consumption of an AV device having a karaoke function comprising a. The method of claim 1, The device, OSD unit for displaying a preset OSD screen on the display device when no power is supplied to the karaoke processor Apparatus for reducing power consumption of an AV device having a karaoke function further comprising. As a method of reducing power consumption in an AV device having a karaoke processor that processes a voice signal input from a microphone connected to a microphone connecting jack, Determining whether a preset voltage is applied from the microphone connection jack; As a result of the determination, supplying power to the karaoke processor when the preset voltage is applied; Disconnecting power supplied to the karaoke processor when the preset voltage is not applied; Cutting off power to the karaoke processor and displaying a preset OSD screen on a display device; Power consumption of the AV device with a karaoke function comprising a.

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