KR20130133965A - Access device for smart tv selectively using hdmi and mhl - Google Patents

Abstract

The present invention relates to a connection device for a smart TV that selectively uses HDMI and MHL, and more specifically, to connect a general digital TV to the Internet through a WIFI module to use as a smart TV, HDMI installed in the digital TV The present invention relates to a smart TV connection device that selectively uses HDMI and MHL, which are universally available, having a connector that can be connected to both a port or an MHL port.
According to the present invention, even if only one port of the HDMI port and the MHL port is installed on the user's digital TV, the user can freely connect the connection device to use his digital TV as a smart TV.

Description

ACCESS DEVICE FOR SMART TV SELECTIVELY USING HDMI AND MHL}

The present invention relates to a connection device for a smart TV that selectively uses HDMI and MHL, and more specifically, to connect a general digital TV to the Internet through a WIFI module to use as a smart TV, HDMI installed in the digital TV The present invention relates to a smart TV connection device that selectively uses HDMI and MHL, which are universally available, having a connector that can be connected to both a port or an MHL port.

Smart TV is connected to the Internet network and receives various information through the communication network established by the Internet Service Provider (ISP), and functions as a computer such as games, video-on-demand, and mobile applications. Say TV possible.

In general, in order to construct a smart TV system, a wired / wireless connection module for enabling Internet access must be installed in a general digital TV, and a data processor must be provided to convert data into an Internet protocol.

However, most of the recently released smart TVs do not have internet access functions, so they can be used as smart TVs only when an external device such as a set-top box (STB) is connected to the digital TV.

1 is a conceptual diagram illustrating a digital content control system according to the related art, and illustrates a method of connecting to an internet network using a set-top box 100.

Referring to FIG. 1, a conventional system basically includes an STB 100, a master display device (MDD) 110, and a slave display device (SDD) 120.

The MDD 110 refers to a general display device (eg, a TV receiver) displaying a broadcast image provided from the STB 100. Therefore, the HD-class image can be received and displayed through the STB 100 and the HDMI interface.

The STB 100 performs various signal processing through communication with the SDD 120 according to an embodiment of the present invention in addition to the digital broadcast reception function provided by the conventional set top box. That is, the STB 100 receives a terrestrial TV signal or cable broadcast signal from a terrestrial broadcast server (ie, terrestrial broadcast station) 140 or a cable broadcast server (ie, cable broadcast station) 141, and receives each received broadcast signal. Display through the MDD (110).

In addition, by transmitting the image displayed in the MDD (110) to the SDD (120), it is possible to provide and control the screen through a separate device. The image provided to the SDD 120 is reproduced in the same manner in the general smartphone 121.

In addition, the SDD 120 may transmit a control signal to the STB 100 using various wireless communication means (for example, WiFi, Bluetooth, etc.), and the function of the STB 100 may be transmitted through the transmitted control signal. Control or control the image signal output to the MDD (110).

In addition, the STB 100 has an Internet communication means, and various servers (eg, the ISO server 160, the CP server 161, the CM server 162, and the SM server as shown through the ISO 130). (163), etc.), it is possible to provide an application service such as T-commerce.

ISO 130 is an Internet service operator and provides an internet communication service with each server.

The user may execute the Internet content provided by the ISO 130 in the MDD 110 through the Internet network. In addition, the user may receive and watch a terrestrial broadcast or cable broadcast signal.

In the smart TV content providing system according to the related art, the broadcast signal and the Internet access signal are transmitted only to the HDMI port of the TV. Recently, due to the widespread use of mobile terminals, TVs using MHL (Mobile High-Definition Link) ports in addition to high-definition multimedia interface (HDMI) ports, which are used as interfaces of ordinary video devices (DVD players, etc.), have become popular. In the case of a TV with only the MHL port, it is difficult to use a smart TV because it cannot connect a conventional set-top box.

KR 10-1055481 B1

The present invention for solving the above problems is provided with two connectors to be connected to both the HDMI port and the MHL port, and provides an Internet connection function to the digital TV through a variety of interfaces by selectively using any one of them It is an object of the present invention to provide a smart TV connection device that selectively uses HDMI and MHL.

In addition, the present invention, when supplying the DC power to the connector connected to the port of the TV, when connecting the main body of the connector and the connector, the terminal for the grounding of the power than the terminal for supplying the video signal and power contact the moment It is an object of the present invention to provide a connection device for a smart TV that selectively uses HDMI and MHL, which can prevent damage to a circuit caused by a transient supply of transient current.

The present invention has been made in order to solve the above-mentioned problem is a device for connecting the digital TV 240 to the Internet network by connecting to the digital TV 240, the Internet data from the wireless network connected to the Internet A main body (210) for receiving and converting the video signal and the audio signal and transmitting the converted video signal and the audio signal to the digital TV (240); The main body 210 is selectively connected to an HDMI port or an MHL port provided in the digital TV 240, and the video signal and audio signal are converted into a HDMI standard signal or a MHL standard signal to convert the digital TV 240. It includes; HDMI connector 220 or MHL connector 230 to transmit to.

The main body 210 includes a CPU 211 in charge of data processing and communication protocol conversion; A ROM 212 and a RAM 213 connected to the CPU 211; A WIFI module 214 for converting a wireless Internet signal into a Secure Digital I / O (SDIO) communication signal and transmitting the same to the CPU 211; An antenna 215 for receiving the wireless Internet signal and transmitting it to the WIFI module 214, converting a signal transmitted from the WIFI module 214 into a wireless Internet signal, and transmitting the wireless Internet signal to the Internet network; The HDMI transmitter 216 converts a video signal or an audio signal transmitted from the CPU 211 into a Transition Minimized Differential Signaling (TMDS) channel signal and transmits the signal to the HDMI connector 220 or the MHL connector 230 through a TMDS channel. );

The MHL connector 230 includes an MHL processor 231 for converting an HDMI standard TMDS channel signal transmitted from the HDMI transmitter 216 into an MHL standard signal.

The terminal of the main body 210 is provided with a terminal connected to the HDMI connector 220 or the MHL connector 230, the terminal is transient with the main body data terminal 210-2 for transmitting the video signal and audio signal The main body ground terminal 210-1 forms a ground path to remove current, and the main body ground terminal 210-1 protrudes relatively more than the main body data terminal 210-2. It features.

According to the present invention, even if only one port of the HDMI port and the MHL port is installed on the user's digital TV, the user can freely connect the connection device to use his digital TV as a smart TV.

In addition, according to the present invention, even if the instantaneous transient current is included in the DC power supply to the connection device is bypassed through the ground terminal, there is an effect that the components inside the connection device is not damaged.

1 is a conceptual diagram showing a digital content control system according to the prior art.
Figure 2 is a perspective view showing the structure of the connection device for a smart TV according to an embodiment of the present invention.
Figure 3 is an exploded perspective view showing a connection method of the two connectors and the main body.
Figure 4 is a cross-sectional view showing the structure of the connecting portion of the connector and the main body.
5 is a block diagram showing a connection state between the components of the HDMI connector and the main body.
6 is a block diagram showing a connection state between the MHL connector and the components of the main body;

Hereinafter, with reference to the drawings will be described "connector for smart TV selectively using HDMI and MHL" (hereinafter referred to as "connector") according to an embodiment of the present invention.

2 is a perspective view showing the structure of a smart TV connection apparatus according to an embodiment of the present invention, Figure 3 is an exploded perspective view showing a connection method of the two connectors and the main body.

The connection device 200 of the present invention is composed of a main body 210 and connectors 220 and 230.

The main body 210 is connected to the HDMI port or the MHL port of the digital TV 240, and has a device and a web browser that can wirelessly access the Internet network. The main body 210 receives the Internet data from the Internet network, converts it into a video signal and an audio signal, and transmits it to the digital TV 240. In addition, the digital TV 240 receives the contents input by the user using a remote controller or a keyboard and transmits the contents to the Internet network. In other words, the connection device 200 of the present invention is connected to the Internet network in the same manner as a PC to execute a user's desired operation (web access, content playback, search, etc.), the conventional digital TV 240 operates as a smart TV. To do it.

The connectors 220 and 230 are detachably coupled to one end of the main body 210, and either one of the HDMI connector 220 and the MHL connector 230 is selectively selected according to the type of the port installed in the digital TV 240. Used as When the HDMI port is installed in the digital TV 240, the main body 210 is connected to the opposite side while the HDMI connector 220 is plugged into the HDMI port. If the MHL port is installed in the digital TV 240, the main body 210 and the digital TV 240 are connected by using the MHL connector 230.

The main body 210 basically transmits an HDMI signal and outputs the image as a digital TV 240. When the MHL connector 230 is used, the HDMI signal is changed into an MHL signal inside the MHL connector 230. Output to the TV 240. Both HDMI and MHL transmit video and audio signals at high speeds without any compression, allowing users to watch broadcasts without compromising image quality and sound quality.

The connection device 200 functions to connect to the Internet network using the digital TV 240, and provides an internet network access function so that the existing digital TV 240 can be used for the purpose of the smart TV. In addition, when a memory device is added to the access device 200, the memory device may be used as a multimedia playback device.

On one side of the HDMI connector 220 and the MHL connector 230, the HDMI terminal and the MHL terminal are protruded, and on the opposite side, a socket into which the terminal protruding from the main body 210 is inserted is formed. When the main body 210 and the connectors 220 and 230 are coupled, the protruding terminal of the main body 210 is inserted into the socket and electrically connected thereto.

Power sockets 223 and 234 for supplying DC power are installed in the HDMI connector 220 and the MHL connector 230, respectively. A separate power cable (not shown) is connected to the power sockets 223 and 234 to supply power for the operation of the connection device 200.

4 is a cross-sectional view showing the structure of a connecting portion of the connector and the main body.

In FIG. 4, the connection structure of the main body 210 and the HDMI connector 220 will be described. However, since the structures of the HDMI connector 220 and the MHL connector 230 are the same, the contents of FIG. 4 are also applied to the MHL connector 230. The same applies.

The terminal protruding from the end of the main body 210 is a flat rectangular shape, the left and right ends protrude slightly in the longitudinal direction of the main body 210 in the widthwise direction of the rectangle, the center portion in the rectangular width direction is relatively concave It is formed.

The main body ground terminal 210-1 is provided at the left and right protruding portions of the protruding terminal of the main body 210, and the main data terminal 210-2 is installed at the concave portion.

The connection device 200 that transmits and receives a video signal and an audio signal through the HDMI method includes both a terminal for receiving a data signal and a terminal for receiving power. The DC power supplied to the connectors 220 and 230 is supplied to the main body 210, and a processor or a communication module inside the main body 210 is driven by the DC power.

However, when the transient current is instantaneously mixed in the DC power supplied to the connection device 200, the semiconductor element or the like installed inside the connection device 200 may be damaged. The transient current may occur during the use of the connecting device 200, but when the main body 210 is inserted in the state in which the connectors 220 and 230 are inserted into the digital TV 240, the transient current flows into the main body 210 momentarily. May be

In order to prevent such damage, it is necessary to form a separate ground terminal in the connector (220, 230).

The terminal for grounding is formed in both the main body 210 and the connectors 220 and 230. When the main body 210 is inserted into the connectors 220 and 230, the terminals for both grounding and the terminals for transmitting data are in contact with each other. do. In order to protect the device from the transient current generated when the main body 210 is inserted, it is preferable that the grounding terminal is formed in advance by contacting the terminal for grounding rather than the terminal for transmitting and receiving data. Therefore, the terminal for grounding further protrudes from the terminal of the main body 210 so as to contact before the terminal for data transmission.

As shown in FIG. 4, the main body ground terminal 210-1 protrudes in the longitudinal direction on the left and right sides at the distal end of the main body 210, and the main data terminal 210-in the middle between the main body ground terminals 210-1. 2) is installed.

The inside of the HDMI connector 220 is also provided with a terminal for grounding and a terminal for data transmission, respectively. A terminal corresponding to the size and shape of the terminal formed in the main body 210 is formed in the HDMI connector 220 in a concave shape, and the connector ground terminal 220-corresponding to the main body ground terminal 210-1 on the left and right sides of the inside of the terminal. 1) is installed, and the connector data terminal 220-2 is installed between the connector ground terminals 220-1.

However, unlike the main body 210, the connector ground terminal 220-1 and the connector data terminal 220-2 are installed on the same line in the length direction. Therefore, the terminals of the main body 210 introduced into the concave terminal form the ground path while the ground terminals 210-1 and 220-1 of the left and right ends contact first, and then form the data paths 210-2 and 220-. 2) is in contact.

If the transient current is generated at the moment of connecting the main body 210 and the HDMI connector 220, the transient current is removed through the ground path formed earlier in time, thereby preventing damage to the connection device 200.

On the other hand, Figure 5 is a block diagram showing the connection state of the components of the HDMI connector and the main body.

The main body 210 is provided with a CPU 211 for data processing and communication protocol conversion. The CPU 211 is connected to the ROM 212 and the RAM 213, and the WIFI module 214 is connected to the antenna 215.

The WIFI module 214 converts the wireless Internet signal received from the antenna 215 into a Secure Digital I / O (SDIO) communication signal and transmits the same to the CPU 211. The WIFI module 214 forms a communication network so that the connection device 200 can connect to the Internet network, transmit and receive data, receive an IP television broadcast signal, and display it on the digital TV 240. In addition, it provides an Internet connection environment so that a user can use services such as SNS, VOD, and AOD using the digital TV 240.

The CPU 211 converts a signal transmitted from the WIFI module 214 into a video signal and an audio signal and transmits the signal to the HDMI transmitter 216.

The HDMI transmitter 216 converts a video signal and an audio signal transmitted from the CPU 211 into a transition minimized differential signaling (TMDS) channel signal and transmits the signal to the HDMI connector 220 through the TMDS channel.

The video signal and the audio signal transmitted to the HDMI connector 220 are transmitted to the digital TV 240 by the HDMI 221, and are output as video and audio from the display and the speaker of the digital TV 240, respectively.

The power conversion unit 222 of the HDMI connector 220 converts the voltage of the DC power supplied from the power socket 223 and supplies the converted voltage to the main body 210. The connection device 200 of the present invention is driven by the DC power supplied from the power conversion unit 222 of the HDMI connector 220.

If the user has an HDMI port on the digital TV 240, the user connects the HDMI connector 220 to the HDMI port of the digital TV 240, connects the main body 210 to the HDMI connector 220, and then Smart TV function can be implemented by accessing the network.

6 is a block diagram showing a connection state between the MHL connector and the components of the main body.

The MHL connector 230 is used in the same manner as the main body 210 shown in FIG. The MHL connector 230 is also provided with a power converter 233 for converting the voltage of the DC power supply to the main body 210.

An MHL processor 231 is installed in the MHL connector 230. The MHL processor 231 converts the TMDS channel signal of the HDMI standard transmitted from the HDMI transmitter 216 of the main body 210 into a signal of the MHL standard. The converted MHL signal is transmitted to the digital TV 240 through the MHL 232 and output as video and audio.

If your digital TV 240 has only an MHL port instead of an HDMI port, the user connects the MHL connector 230 to the MHL port of the digital TV 240, and then connects the main body 210 to the same method as before. Smart TV function can be used.

Since the main body 210 and the connectors 220 and 230 are easily detached, the main body 210 can be connected to the connector 220 and 230 to access the Internet network only when the user needs it, and can be connected to the HDMI port or the MHL port. In the case of using other multimedia source devices, new devices can be connected while the connectors 220 and 230 are removed.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, As will be understood by those skilled in the art. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

Claims (4)

A device for connecting the digital TV 240 to the Internet by wirelessly connecting to the digital TV 240,
The main body 210 receives Internet data from the Internet network connected wirelessly, converts it into a video signal and an audio signal, and transmits the converted video signal and the audio signal to the digital TV 240 to output video and audio. )Wow;
The main body 210 is selectively connected to an HDMI port or an MHL port provided in the digital TV 240, and the video signal and audio signal are converted into a HDMI standard signal or a MHL standard signal to convert the digital TV 240. HDMI connector 220 or MHL connector 230 to be transmitted to); and a connection device for a smart TV that selectively uses HDMI and MHL. The method of claim 1,
The body 210 is
A CPU 211 in charge of data processing and communication protocol conversion;
A ROM 212 and a RAM 213 connected to the CPU 211;
A WIFI module 214 for converting a wireless Internet signal into a Secure Digital I / O (SDIO) communication signal and transmitting the same to the CPU 211;
An antenna 215 for receiving the wireless Internet signal and transmitting it to the WIFI module 214, converting a signal transmitted from the WIFI module 214 into a wireless Internet signal, and transmitting the wireless Internet signal to the Internet network;
The HDMI transmitter 216 converts a video signal or an audio signal transmitted from the CPU 211 into a Transition Minimized Differential Signaling (TMDS) channel signal and transmits the signal to the HDMI connector 220 or the MHL connector 230 through a TMDS channel. Smart TV connection device that selectively uses HDMI and MHL, including. 3. The method of claim 2,
The MHL connector 230
And a MHL processor (231) for converting an HDMI standard TMDS channel signal transmitted from the HDMI transmitter (216) into an MHL standard signal, wherein the HDMI and the MHL are selectively used. 3. The method according to claim 1 or 2,
The terminal of the main body 210 is provided with a terminal connected to the HDMI connector 220 or the MHL connector 230, the terminal is transient with the main body data terminal 210-2 for transmitting the video signal and audio signal The main body ground terminal 210-1 forms a ground path to remove current, and the main body ground terminal 210-1 protrudes relatively more than the main body data terminal 210-2. A smart TV connection device that selectively uses HDMI and MHL.

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