KR20020064436A - Digital multimedia system - Google Patents

Abstract

PURPOSE: A digital multimedia system is provided to combine a digital broadcasting receiving function with a PC function, thereby implementing high resolution, high definition, and high sound quality. CONSTITUTION: A digital TV module(110) comprises as follows. An A/D converter(112) receives analog video data from a PC module(120), and converts the data into digital video data. A time shifter(113) stores a desirous image, sound, or broadcasting of a user. An MPEG decoding/video display(114) MPEG2-decodes the digital video data or a transport signal of a detector(111), and converts the decoded data and the signal according to displaying specifications. A CPU(116) controls each block according to function settings. The PC module comprises as follows. A signal input/output unit(121) inputs/outputs a control signal for controlling PCI, recording media, and modem. A hard disk(123) records data. A CPU(122) transceives the control signal with the digital TV module in an RS-232 communication method, and controls operations.

Description

Digital multimedia system {DIGITAL MULTIMEDIA SYSTEM}

The present invention relates to digital imaging technology, and more particularly to a digital multimedia system.

With the development of broadcasting technology, digital broadcasting has emerged recently. Unlike conventional analog TV broadcasting, not only high resolution and high definition but also high sound quality are realized.

Such digital broadcasting requires a dedicated digital broadcasting receiver.

However, current digital broadcast receivers can only play TV screens and audio or only display simple data, which does not satisfy various needs of users.

Accordingly, an object of the present invention is to provide a digital multimedia system invented to provide convenience to a user by combining a digital broadcast reception function and a PC function in order to improve the conventional problems.

That is, the object pursued in the present invention can be divided as follows.

1) An object of the present invention is to enable a general TV viewer to easily execute a PC function by implementing a data transmission and reception between a digital TV module and a PC module and controlling it with a single remote controller or keyboard.

Accordingly, the present invention enables PC (PC) based Internet, MP3, video and sound reproduction using high quality display performance in digital broadcasting technology.

2) Another object of the present invention is to enable a digital broadcast program to be recorded on an external or internal recording medium by combining a digital TV module and a PC module.

1 is a block diagram of an apparatus showing one embodiment of the present invention.

Figure 2 is a block diagram of an apparatus showing another embodiment of the present invention.

Figure 3 is an exemplary view showing an integrated GUI image in the present invention.

4 is an exemplary view of an integrated remote control in the present invention.

Explanation of symbols on the main parts of the drawings

110,210: digital TV module 111,211: detector

112: analog to digital converter 113,213: time shifter

114,214: MPEG decoder / video display unit

115,215: AC-3 Decoder / Audio Mixer

116,122,216,222 CPI 120,220 PC module

121,221: Signal input / output unit 123,223: Hard disk (HDD)

In order to achieve the above object, the present invention provides a connection between a digital video device and an information device, wherein the digital video device includes a video signal connection unit for receiving a video signal of the information device, and a digital video signal at the video signal connection unit. And a decoder which decodes and converts according to the specifications of the display device, and a serial interface for transmitting and receiving a control signal with the information device.

The video signal connection unit may be an analog / digital converter or an IEEE-1394 processor.

The digital imaging device may further include a PCI interface unit for storing video data in a memory provided in the information device in the recording mode.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a block diagram of an apparatus for an embodiment of the present invention, as shown therein, for detecting a user to select a desired broadcast channel by receiving an air wave, satellite broadcast or cable broadcast and converting it into a transport signal. An analog / digital conversion unit (A / D) 112 for receiving analog image data from the PC module 120 and converting the analog image data into digital image data; and a desired image, sound, or broadcast program. MPEG decoding / video for storing the time shifter 113 and the transport signal of the detector 111 or the digital image data of the analog / digital converter 112 after MPEG2 decoding, and then appropriately converting them to a display specification. The display unit 114 and the audio signal separated from the detector 111 or the audio signal from the PC module 120 is received and the two signals are mixed and the speaker AC-3 decoder / audio mixer 115 which reproduces sound by outputting, and CPU, which controls the operation of each unit according to function setting such as broadcasting viewing, internet connection, MP3 playback or video / audio recording / playback. Digital TV module 110 consisting of 116; Signal input / output unit 121 for control signal input / output for PCI control, recording medium control and modem control, and a hard disk (HDD) connected to the signal input / output unit 121 for recording video, audio or information data ( 123 and the signal input / output unit 121 to control operations such as Internet connection, MP3 playback, recording / reproducing of video and audio while transmitting and receiving control signals with the digital TV module 110 through RS-232 communication. It is configured to include a PPC module 120 consisting of a CPI (122) for controlling the.

The PC module 120 and the digital TV module 110 are configured to be connected by an RS-232 communication line to exchange control data, a user interface command, an E-mail title, etc., which are promised to each other.

Reference numeral '117' in the drawing indicates an RS-232 port.

Referring to the operation and effect of the embodiment of the present invention configured as described above are as follows.

First, when watching a digital broadcast, the digital TV module 110 operates independently of the PC module 120 to display a broadcast desired by the viewer on a monitor (not shown) screen and to reproduce a sound corresponding thereto.

That is, the digital TV module 110 converts the airwave, satellite or cable broadcast signal into a transport signal through VSB, QPSK or QAM processing, and then the MPEG decoder / video display unit 114 decodes MPEG2. After converting the video signal according to the display specification and outputting it to a monitor (not shown), the AC3 decoder / audio mixer 115 uses the Dolby-AC3 5.1 channel, which is an acoustic standard of the DTV separated from the detector 111, to be output. By decoding and transmitting to the speaker, the digital broadcasting sound is reproduced.

Here, the MPEG decoder / video display unit 114 may upconvert or downconvert the broadcast display format using the provided video display technology.

If a user wants to temporarily store a desired image or sound while watching a digital TV broadcast, the user may use the remote control to control the CPI 116 provided in the digital TV module 110 in the CPC 120. The integrated GUI image as shown in the example of FIG. 3 is displayed on the monitor screen (not shown), and then the recording button is selected from the integrated GUI image menu.

Here, the PC module 120 is kept in an on state.

At this time, the digital TV module 110, the time shifter 113 filters the image, sound or data broadcast desired by the user from the transport signal from the detector 111 to transmit to the MPEG decoder / video display unit 114 and the MPEG The decoder / video display unit 114 performs MPEG decoding.

Accordingly, the MPEG-decoded data is transmitted to the PC module 120 through the PCI bus under the control of the CPI 116, and the CPI 122 stores the hard disk 123 by controlling the signal input / output unit 121. Done.

The stored data can be reproduced and viewed by the user at any time.

However, the remote controller for adjusting the operation of the digital TV module 110 is an integrated remote controller as shown in FIG. 4, and powers on / off, reboots, resets, and resets the PC module 120 through the digital TV module 110. You can run the application.

Here, the execution of the application program in the PC module 120 means registering and executing a web browser, email check, Ticker ON / OFF, word processor and game.

Accordingly, when the user watches a digital broadcast and presses a specific key of the remote controller to turn on the power of the PC module 120, the digital TV module 110 recognizes that the CPC 116 is powered on of the PC module 120. Through the RS-232 ports 117 and 125, the PC module 120 is notified by notifying CPC 122 provided in the PC module 120 to turn on the PC module 120.

In this case, the PC module 120 executes an operating program of the PCU 122 and transmits analog image data of the initial screen to the digital TV module 110 through the XVGA port 124.

Accordingly, the digital TV module 110 converts the analog image data of the web page transmitted from the PC module 120 into digital image data when the analog / digital conversion unit 112 converts the MPEG image into a digital image data. By decoding and converting according to the display specification and outputting to the monitor (not shown), the initial PC screen is displayed on the screen to inform the user that the operation state has been reached.

Therefore, when a user executes a web browser, email check, Ticker ON / OFF, word processor or game in the PC module 120 using a remote controller or a keyboard, the corresponding image is monitored through the digital TV module 110. (Not shown) is displayed on the screen, the user can perform the operation.

For example, when the user executes the Internet connection, the CPI 122 controls the signal input / output unit 121 to operate the modem through the NIC port 127 to connect to the Internet web site.

At this time, the web page screen is transmitted to the digital TV module 110 through the XVGA port 124.

Accordingly, when the analog / digital converting unit 112 converts the analog image data of the web page transmitted from the PC module 120 into digital image data, the MPEG decoder / video display unit 114 decodes the MPEG to meet the display specification. By converting and outputting to a monitor (not shown), the user can search for desired information.

Thereafter, when the user searches the Internet site and sets the record of the desired information, the CPI 122 controls the signal input / output unit 121 to store the information on the hard disk 123.

In addition, when executing information search or application program recorded on the hard disk 123, the PC module 120 controls the signal input / output unit 121 by the CPI 122 according to a user's key input. Corresponding analog image data is output to the digital TV module 110 to display a directory or an information file classified according to the information recorded in FIG.

At this time, the digital TV module 110 processes the analog image data transmitted from the PC module 120 through the analog-to-digital converter 112 and the MPEG decoder / video display unit 114 to display a directory on a monitor (not shown) screen. Or an information file and a cursor.

Accordingly, when a desired directory or information file is selected by using a keyboard or a mouse, it is transferred to the CPI 122 by the CPI 116, and the CPI 122 opens the directory or reads and reads the corresponding information file. Thereafter, the signal input / output unit 121 is controlled to be transmitted to the digital TV module 110 to be displayed on a monitor (not shown) screen so that the user can see it.

The external DVD ROM may be accessed using the signal input / output unit 221 provided in the PC module 120.

Meanwhile, when the digital TV module 110 and the PC module 120 are both on, the user may display only one of the broadcast image or the PC image on the entire screen of the monitor (not shown) or the main and sub-screens. You can set whether to display broadcast video and PC video at the same time by using remote controller.

Here, when both the digital TV module 110 and the PC module 120 are in an operating state, only the sound corresponding to one of the broadcast image or the PC image may be reproduced or mixed.

And, Figure 2 is a block diagram of a device for another embodiment of the present invention, as shown in the overall configuration is composed of the digital TV module 210 and the PC module 220 as in the embodiment of Figure 1 In addition, the digital TV module 210 and the PC module 220 are respectively provided with interface units 212 and 224 of the IEEE-1394 standard to replace the analog / digital conversion unit 112 in one embodiment. do.

Therefore, in the case of another embodiment of the present invention also performs the same operation as the embodiment, detailed operation description will be omitted.

However, in another embodiment, since the IEEE-1394 communication standard is adopted, an example of an image between the digital TV module 210 and the PC module 220 may include an image such as a DVD, a game, the Internet, and the like. Through).

In addition, in one embodiment, commands transmitted and received through the RS-232 communication line may be exchanged through the IEEE-1394 interface unit 212 and 224.

Further, in one embodiment and another embodiment, the PS / 2 port 228 is provided in the PC module 120/220 so that the digital TV module 110 and the PC module 120 can be remotely operated by a user by a wireless keyboard or a mouse. It can provide convenience to users by controlling it.

As described in detail above, the present invention provides a high quality and high sound quality by implementing a PC environment in a digital TV environment, thereby improving the performance of the device by improving the Internet and multimedia environment, and providing a user with satisfaction. It works.

In addition, the present invention implements a general PC environment in a digital TV environment, so that existing information can be used without developing new portal services and contents, thereby providing various information to the user.

Claims (4)

An image processing unit for processing an image signal from an image processing unit, a decoding unit for decoding and converting the image signal of the image processing unit according to a display specification, and an interface unit connecting the information processing device and a device having the image processing unit Digital multimedia system, characterized in that provided. The digital multimedia system according to claim 1, wherein the image processing unit comprises an analog / digital converter for converting an analog image signal of an information device into a digital image signal. The digital multimedia system according to claim 1, wherein the interface unit transmits a control signal through RS-232C and a video signal to a digital interface. The digital multimedia system according to claim 1, further comprising a PCI interface unit for storing video data in a memory provided in the information device in the recording mode.