KR100718295B1 - OwnerShip Device For Media Data By Using Power Line Communication - Google Patents

Abstract

The present invention relates to a media data sharing apparatus using power line communication to share media data at a remote location without the help of a separate signal line or a relay.

In accordance with another aspect of the present invention, a media data sharing apparatus using power line communication includes a source output apparatus for outputting a video signal from a media data supply apparatus, and a media data sharing apparatus for transmitting the media data to a remote output apparatus. A transmission modem connected to the power line for supplying the media data input to the source output device, and receiving the media data connected to the power line and supplied through the power line, and providing the media data to the remote output device. A modem is provided.

The media data sharing apparatus using the power line communication of the present invention can share media data at a remote location without the help of a separate signal line or a relay device.

Description

Media data sharing device using power line communication {OwnerShip Device For Media Data By Using Power Line Communication}

1 is a view showing a media data sharing apparatus using power line communication according to a first embodiment of the present invention.

2 is a diagram illustrating in more detail an apparatus for sharing media data using power line communication according to the present invention.

3 is a diagram illustrating an example of a case where a media data supply device is a home VR (VCR), and a source and a remote output device are a home television for explaining a practical example of the present invention.

4 is a diagram illustrating another example in which the first embodiment of the present invention is applied, and illustrates an example in which media data is supplied using a remote external device.

5 is a diagram schematically illustrating a configuration of a media data sharing apparatus according to a second embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

1: Analog Media Data Supply

2, 42: source output device 3, 24, 31, 41: outgoing modem

4, 27, 32, 45: power lines 5, 26, 33, 35, 44: reception modem

6, 43: remote output device 10, 15: input terminal

11: analog to digital converter 12: encoder

13: encryptor 14, 19: output stage

16: Decryptor 17: Decoder

18: digital-to-analog converter 21: VCR

22, 34: first television 23: signal transmission path

25, 36: second television 30: cable broadcasting device

40: digital media data supply device

The present invention relates to a media data sharing apparatus, and more particularly, to a media data sharing apparatus using power line communication for sharing media data at a remote location without the help of a separate signal line or a relay device.

In recent years, many homes have one or more devices such as TVs and audio. Such devices are often installed with various channels, various kinds of images, genres of music, etc., and more than one device is installed for reasons of different enjoyment due to different hobbies and preferences among family members.

On the other hand, such multimedia devices often form a set of various types of components. That is, a case in which two devices such as a television and a video player, an audio device, and a television are used in a single set, and a method in which both a television, a video player, an audio device, and a communication device are connected and used. This example has evolved from the traditional use of televisions and video players together, and has recently emerged a new composition called home theater.

However, there are a lot of crowds to install all of these home theater equipment in each of the family members. However, installing multiple televisions and video players has become a challenge for the average family. In addition, even if the price burden is small, it is not easy to install two or more video players considering the lack of installation space and the wasteful factor of the actual usage time.

However, in order to use a single video player between two televisions, the video line is long, and the remote control signal is not easily touched, which is disadvantageous in appearance. In addition, even when transmitting a video signal using a wireless data communication device, the expensive price of the wireless data communication device and interference caused by the wall, peripheral devices, etc. are a big obstacle to use it.

Therefore, there is a need for a method of sharing the functions of the multimedia device, in particular, the media data provided from the multimedia device, in an easier way.

Accordingly, it is an object of the present invention to provide a media data sharing apparatus using power line communication to share media data at a remote location without the aid of a separate signal line or relay.

In addition, another object of the present invention is to provide a media data sharing apparatus using power line communication to facilitate the processing and sharing of digital or analog media data by varying the configuration of the transmission modem and the reception modem for each type of signal.

Another object of the present invention is to provide a remote signal receiver for receiving and transmitting a signal of a remote controller and generating a control signal by receiving a signal of a remote controller to control a media data supply device, a source output device or a remote output device at a remote location. To provide a media data sharing apparatus using power line communication having a transmitter, a control unit.

In order to achieve the above object, a media data sharing apparatus using power line communication according to the present invention is a source output device for outputting media data from a media data supply device, and media data for transmitting the media data to a remote output device; A sharing apparatus, comprising: a transmission modem connected to a power line and supplying the media data input to the source output device to the power line; and receiving the media data connected to the power line and supplied through the power line. A receiving modem is provided to a remote output device.

The originating modem may include at least one of an analog to digital converter or an encoder. The originating modem may include an encryptor.

The receiving modem may include at least one of a digital analog converter or a decoder.

The receiving modem may have a decryptor.

At least one of the transmission modem and the reception modem is a remote signal receiver for receiving a remote signal from a remote controller for generating a control signal for controlling at least one of a media data supply device, a source output device or a remote output device. And a remote signal transmitter for transmitting the remote signal through a power line.

At least one of the transmission modem and the reception modem may further include a receiver for receiving the remote signal supplied through the power line, and a controller for generating a control signal using the remote signal from the receiver.

Other features and operations of the present invention in addition to the above objects will be apparent from the detailed description of the embodiments with reference to the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 5.

1 is a diagram illustrating a media data sharing apparatus using power line communication according to a first embodiment of the present invention.

Referring to FIG. 1, a media data sharing apparatus using power line communication according to a first embodiment of the present invention includes a source output device 2 for outputting media data from an analog media data supply device 1, and a power line. (4), the transmission modem (3) for supplying analog media data input to the source output device (2) to the power line, and the analog media data supplied through the power line (4) to receive a remote output device ( And a remote output device 6 for outputting analog media data received by the receive modem 5.

The analog media data supply device 1 is connected to the source output device 2 to supply analog media data (hereinafter referred to as "AMD"). To this end, the analog media data supply device 1 supplies AMD to a dedicated line over a long distance, or is installed near the source output device 2 to supply AMD to the source output device 2. This AMD supply 1 includes a cable television (CATV) broadcast transmitter, V-Cal, and a camcorder. Here, the media data means data including video and audio.

The source output device 2 outputs AMD from the analog media data supply 1 and provides it to the user. For this purpose, the source output device 2 is connected to the AMD supply 1. The source output device 2 includes a device capable of outputting video and audio such as a television, a computer monitor, and a projector.

The source modem 3 supplies AMD supplied from the AMD supply device 1 to the source output device 2 via the power line 4 and the reception modem 5 to the remote output device 6. For this purpose, the source modem 3 is connected to the AMD supply unit 1, the source output unit 2, or a part of a connection line connecting the AMD supply unit 1 and the source output unit 2 to receive AMD. . In particular, this transmission modem 3 is equipped with a digital-to-analog converter, an encoder, and an encryption to transmit AMD through the power line 4.

The reception modem 5 receives the power line AMD received through the power line 4 (Power Line AMD: hereinafter referred to as 'PL_AMD'), restores the AMD, and provides the restored AMD to the remote output device 6. Through this, the remote output device 6 can reproduce the same image and sound at the same time as the source output device 2. To this end, the reception modem 5 is connected to the power line 4, and has an analog-to-digital converter, a decoder and a decoder. Detailed configuration and operation of the outgoing modem 3 and the receiving modem 5 will be described later with reference to FIG. 2. In addition, a method of outputting the AMD from the analog media data supply device 1 through the remote output device 6 according to the present invention will be described in detail with reference to the specific application examples of FIGS. 3 and 4.

FIG. 2 is a diagram illustrating a media data sharing apparatus using power line communication according to the present invention in more detail. FIG. 2A is a diagram illustrating a transmission modem and FIG. 2B is a diagram illustrating a reception modem.

Referring to FIG. 2, the transmission modem 2 of the media data sharing device of the present invention converts an AMD signal into an analog digital converter (ADC) 11 that converts an AMD signal into a digital signal transmittable through a power line 4. An encoder 12 for converting the digital signal into a transmittable signal system and an encryption 13 for converting AMD into data that only a specific receiving modem 5 can interpret. In addition, the terminal 10 further includes an input terminal 10 for receiving AMD from the AMD supply device 1 and an output terminal 14 for transmitting the power line AMD (PL_AMD) whose conversion is completed to the power line 4. In addition, the media data converted from the analog-to-digital converter is compressed and supplied to the encoder.

In addition, the reception modem 5 includes a decoder 16 for restoring the received PL_AMD to interpretable data, a decoder 17 for converting the interpretable data into data of a form before encoding, and an encoded digital signal. A digital analog converter (DAC) 18 for converting data into analog data is provided. It further includes a receiving end 15 for receiving PL_AMD from the power line 4 and an output end 16 for supplying the AMD output reconverted into an analog signal to the remote output device 6. The media data supplied from the decoder is decompressed, that is, passed through the decompression unit and then supplied to the digital-to-analog converter.

When AMD is supplied from the AMD supply device 1 to the source output device 2, AMD is also supplied to the originating modem 3 through the receiving end 10 of the originating modem 3. The AMD supplied through the receiving end 10 of the source modem 3 is converted by the ADC 11 into digital AMD (D_AMD) for power line communication. The digital AMD signal is converted into a digital AMD signal ED_AMD having a signal system transmittable by the encoder 12. The converted digital AMD ED_AMD is converted into PL_AMD which can be reconverted only in the reception modem 13 authorized through the encryptor 13. Here, the encryptor 13 is not necessarily required, but if there is no encryption operation by the encryptor 13, the remote output is connected to the power line 4 and has a receiving modem 5 of the same type as the originating modem 3. Since the device 6 receives the AMD regardless of the reception intention, it is preferable to include the encryptor 13. The PL_AMD generated after the conversion is completed via the encryptor 13 is supplied to the power line 4.

The reception modem 5 connected to the power line 4 receives the PL_AMD supplied to the power line 4 through the transmission modem 3. The decoder 16 of the reception modem 5 having received the PL_AMD reconstructs the PL_AMD and reconverts it to the signal system ED_AMD before transmission. The AMD converted to the signal system ED_AMD before transmission is converted into a digital signal by the decoder 17, and the AMD converted into a digital signal is converted into AMD by the DAC 18. Through this, the AMD reduced to an analog signal is supplied to the remote output device 6 through the output terminal 19, the remote output device 6 outputs the AMD to provide to the user.

In the case of using the present invention as an actual product, it is advantageous to use a composite three-wire format in which the input and output terminals of each media data are separated from the output terminals of video and audio. In addition, media data is best transmitted to the current power line communication method by transmitting SD (High Definition) / HD (High Definition) quality at a speed of 30 FPS (Frame Per Second) after compression according to ISO / IEC 13818-2 MPEG2 standard. Suitable. In addition, it is desirable to apply a function of supporting a quality of service (Qos) to maintain a minimum quality when outputting a remote image and buffering a video or audio of about 1 second (80 Mbits). In addition, the present invention is not significantly limited to the broadcast method, but when the target of the exchange between different broadcast methods, the user is to automatically recognize the NTSC (National Television System committee) and PAL (Phase Alternation By Line System) method Is a way to use without feeling uncomfortable.

FIG. 3 is a diagram showing an example in which a media data supply device is a home VR (VCR), and the source and remote output devices 2 and 6 are home televisions.

Referring to Fig. 3, two televisions 22 and 25 are installed elsewhere in the home. At this time, VCR is connected only to the first television 22. At this time, as shown in FIG. 3, the first television 22 and the VCR 21 are connected to each other by a conductive path for supplying a signal, such as the conventional AV cable 23. When connected in this way, only the first television 22 connected to the VCR 21 can enjoy the video and sound played back through the VCR 21. In the present invention, the VCR 21 and the power line are connected through the transmission modem. The outgoing modem 24 is then fed with media data output from the VCR 21. The source modem 24 supplies the AMD from the VCR 21 through the power line 27, and the receiving modem 26 receives the AMD supplied to the power line 4 and supplies it to the second television 25. do. In this way, not only the first television 22 connected to the VCR 21 but also the other television 25 installed in another room, another floor or another space, the same media as the first television 22 can be viewed. In addition, when the transmission modem 24 is also installed in the first television 22, the VCR 21 and the first television 22 do not need to be connected using the conductive path 23, so that the VCR 21 Constraints due to installation can be reduced, and it is easy to move and use the VCR 21 to a desired place.

4 is a diagram illustrating another example in which the first embodiment of the present invention is applied, and illustrates an example in which media data is supplied using a remote external device.

4 is a diagram illustrating a method of replacing a current cable broadcasting network using the media data sharing apparatus of the present invention. The current cable broadcasting network establishes a dedicated transmission line such as a coaxial cable in each home more than one line and connects it to the television. In addition, a cable broadcasting service is provided in the form of transmitting media data through a transmission path and reproducing it on a television. However, this method has the disadvantage of expensive coaxial cable, additional cost according to the hypothesis, and continuous maintenance.

However, the existing cable broadcasting method can be replaced by the present invention. That is, the transmission modem 31 is installed in the cable broadcasting device 30 of the cable broadcasting company, and the broadcasting media data is transmitted through the power line 32. In each household, power line receiving modems 33 and 35 are installed between the televisions 34 and 36 and the power line 32. In particular, if the transmitting modem 31 is provided with an encryptor, and the receiving modems 33 and 35 are provided with the same type of decoder, that is, the decoder, the cable broadcasting company can transmit the cable broadcasting data only to the broadcasting service subscribers. When the present invention is applied to the existing cable broadcasting, there is an advantage that can save a huge cost due to the separate transmission line construction, maintenance and transmission path purchase.

5 is a diagram schematically illustrating a configuration of an apparatus for sharing media data according to a second embodiment of the present invention.

Referring to FIG. 5, the media data sharing device according to the second embodiment of the present invention is connected to a source output device 42 and a power line 45 for outputting a video signal from the digital media supply device 40. , The transmission modem 41 for supplying the digital media data input to the source output device 42 to the power line 45 and the digital media data supplied through the power line 45 to receive the remote output device 43. It provides a receiving modem 44 and a remote output device 43 for outputting the digital media data from the receiving modem 44.

The digital media data (DMD) supply device 40 is connected to the source output device 42 to supply the DMD. To this end, the DMD supply device 40 supplies the DMD to a dedicated line at a long distance or is installed near the source output device 42 to supply the DMD to the source output device 42. The DMD supply device 41 includes a digital satellite broadcast receiver, a DVD player (Digital Video Disk or Digital Versatile Disk), a media center personal computer (PC), or a media data supply device through the Internet.

The source output device 42 outputs the DMD from the DMD supply device 40 and provides it to the user. The source output device 42 is connected to the DMD supply device 40 for this purpose. The source output device 42 includes a device capable of outputting digital video and audio such as a digital television, a computer monitor, and a projector.

The transmission modem 41 supplies the DMD supplied from the DMD supply device 40 to the source output device 42 through the power line 45 and the reception modem 44 to the remote output device 43. To this end, the transmission modem 41 is connected to a part of a connection line connecting the DMD supply device 40, the source output device 42 or the DMD supply device 40 and the source output device 42 to receive the DMD. In particular, the outgoing modem 41 may be provided with an encryption to transmit the DMD through the power line 45.

The reception modem 44 receives the power line DMD (Power Line DMD: hereinafter referred to as 'PL_DMD') received through the power line 45 to restore the DMD, and provides the restored DMD to the remote output device 43. Through this, the remote output device 43 can reproduce the same image and sound at the same time as the source output device 42. To this end, the reception modem 44 may be connected to the power line 45 and may include a decryptor (or decryptor).

Here, since the source modem 41 and the receiver modem 44 receive data from the DMD device unlike the first embodiment, the source modem 41 and the receiver modem 44 may not include separate DACs, ADCs, encoders, and decoders.

In addition, the sharing apparatus according to the second embodiment may be applied to a cable broadcasting network or a satellite broadcasting network as described in the first embodiment. In particular, in the case of a video on demand (VOD) using a conventional streaming server, it is possible to implement by applying the second embodiment of the present invention, in this case, by installing a receiving modem in a broadcaster that provides a VOD service from the user Receipt of the request can simply replace the traditional VOD service.

In addition, in the first or second embodiment, it is also possible to control the source output device or the media supply device by the user using the remote output device 43. To this end, the reception modem 44 is provided with a remote receiver (Receiver) for receiving a remote signal from a remote controller (Remote Controller) and a remote signal transmitter (Remote Signal Transmitter) for transmitting a remote signal. In addition, the transmission modem connected to the media data supply device or source output device includes a receiver for receiving a remote signal and a control unit for generating a control signal for controlling the source output device or the media supply device by the remote signal from the receiver. This makes it possible for a user located remotely to control the source side, i.e., the media data supply or the source output device.

In addition, as shown additionally in Fig. 4, the transmission modem 31 has a satellite receiver 51, a digital video disk device 46, a media center PC 47, and the Internet for receiving signals from satellites. It is possible to provide 50 a media service provided via 49. In particular, the provision of media services via a media center PC and the Internet enables the output of computer file formats such as Moving Piture Experts Group (MPEG), Joint Picture Experts Group (JPEG), MP3, and Audio Video Interleaving (AVI) to remote output devices. Since it is provided in the form that can be, when connecting the media service providing device 50 through the media center PC 47 and the Internet 49 through the outgoing modem 31, the remote output device does not constitute a separate device It is possible to output and use a data file immediately.

In the first or second embodiment described above, it is possible for a receiver to select and receive media data supplied from a plurality of media data supply devices. It is also possible to add a function for selectively controlling each media data supply device. In this case, it may be implemented through additional functions such as an on-screen display function in order to select a desired supply device among various supplies. In addition, it is preferable to implement using the Internet Protocol for the network configuration between the source modem and the receive modem, in particular to facilitate the addition of the receive modem.

Therefore, the media data sharing apparatus using the power line communication of the present invention can share the media data at a remote location without the help of a separate signal line or a relay device.

In addition, the media data sharing apparatus using the power line communication of the present invention is different from the configuration of the transmission modem and the reception modem for each type of signal, thereby facilitating the processing and sharing of digital or analog media data.

In addition, the media data sharing apparatus using the power line communication of the present invention provides a remote signal receiver, a transmitter, a control unit for receiving and transmitting a signal of a remote controller and generating the control signal by receiving the signal of the remote controller, thereby providing a media data supply device and a source at a remote location. It is possible to control the output device or remote output device.

Claims (7)

A source output device for outputting media data from a media data supply device, and a media data sharing device for transmitting the media data to a remote output device, An outgoing modem connected to a power line and supplying the media data input to the source output device to the power line; A reception modem connected to the power line and receiving the media data supplied through the power line and providing the media data to the remote output device; At least one of the transmission modem and the reception modem is a remote signal receiver for receiving a remote signal from a remote controller for generating a control signal for controlling at least one of a media data supply device, a source output device or a remote output device. And a remote signal transmitter for transmitting the remote signal through a power line. The method of claim 1, The transmission modem comprises at least one of an analog-to-digital converter or an encoder. The method of claim 1, The transmission modem is a media data sharing apparatus using a power line communication, characterized in that it comprises an encryptor. The method of claim 1, And the receiving modem includes at least one of a digital analog converter and a decoder. The method of claim 1, The receiving modem is a media data sharing apparatus using a power line communication, characterized in that it comprises a decryptor. delete The method of claim 1, At least one of the transmission modem and the reception modem is a receiver for receiving the remote signal supplied through the power line; And a control unit for generating a control signal using the remote signal from the receiver.

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