KR20050070191A - Television cradle of radio information home appliances - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television cradle of a wireless information household appliance. A conventional wireless monitor is not yet clear in image quality, can only watch wireless television, no other additional functions are implemented, and can provide a full multimedia function. There was a problem that only a limited computer working environment was provided because there was not enough video bandwidth and communication bandwidth. In view of the above problems, the present invention provides a wireless monitor for receiving an MPEG compressed file transmitted over a wireless LAN, decoding the MPEG, and outputting the MPEG compressed file; MPEG encoder to encode and output television broadcast signals and media data stored in media storage media, WLAN to broadcast the MPEG encoded MPEG compressed files to multiple wireless monitors, and battery in combination with the wireless monitors. It consists of a TV cradle that includes a charging circuit for charging a battery and a broadband communication module that connects to a broadband network to provide broadband Internet service. The wireless monitor can be moved anywhere in the home by using the television cradle as a broadband multimedia hub. The user can watch various media at a desired place.

Description

TELEVISION CRADLE OF RADIO INFORMATION HOME APPLIANCES

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television cradle of a wireless information household appliance, and more particularly, to a television of a wireless information household appliance, which is capable of smoothly transmitting and receiving image data to improve image quality and increasing communication bandwidth to smoothly execute additional functions. It's about the cradle.

Wireless television wirelessly transmits television signals using a television cradle to provide an environment in which a user can watch television broadcast while moving at home.

The next generation of wireless television has a combination of a wireless monitor and a television cradle, and has been developed as a next generation video medium, and aims to provide users with a multimedia playback environment as well as watching television broadcasting.

Wireless television was already developed in the form of over-the-air reception a long time ago, but in the case of large cities, cable broadcasting has emerged as the broadcast signal reception environment is worse than in the past due to the fading of the radio signal. Was transformed into

However, in order to enhance the television viewing quality while taking advantage of the wireless television, as shown in FIG. 1, the television cradle 11 receiving the cable broadcast and the radio receiving the broadcast signal transmitted from the television cradle 11 are shown. Wireless televisions composed of a wireless monitor 12 incorporating a module have been developed.

Recently, wireless LAN technology has been applied as a communication method between the TV cradle and the wireless monitor. However, the picture quality is not clear and the wireless bandwidth is not limited. Only wireless TV can be watched and other additional functions are available. The reality is that it is not implemented.

The television cradle connects an antenna line to the tuner to receive over-the-air broadcast signals, and the wireless monitor receives broadcast signals from the television cradle, which is a basic feature of current wireless television. There is also an added form of viewing.

Recently, the smart display announced by Microsoft can remotely control the computer 21 through the wireless monitor 22 as shown in FIG. 2, and the touch screen is embedded without a separate external input device so that the user touches the screen. Provide an environment to lower the In addition, by providing multiple images on the monitor screen for the next generation wireless environment, the command interface is improved to provide a convenient environment for using the Internet or document work.

However, there is a problem that only a limited computer working environment is provided because image bandwidth and communication bandwidth are not provided to provide a full multimedia function.

Accordingly, the present invention has been made in view of the above-mentioned problems, and the MPEG-encoded television broadcast signal to smoothly transmit and receive video data to improve image quality and operate as a broadband multimedia hub to receive multimedia services from a plurality of wireless monitors. The purpose is to provide a television cradle of a wireless information appliance.

The present invention for achieving the above object, the wireless monitor to receive the MPEG compressed file transmitted over the wireless LAN to decode and output the wireless; MPEG encoder to encode and output television broadcast signals and media data stored in media storage media, WLAN to broadcast the MPEG encoded MPEG compressed files to multiple wireless monitors, and battery in combination with the wireless monitors. It is characterized by consisting of a television cradle comprising a charging circuit for charging a, and a broadband communication module connected to the broadband communication network to provide a broadband Internet service.

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

3 is an exemplary view showing the configuration of a television cradle, a wireless monitor, and a computer according to an embodiment of the present invention, and a wireless monitor 51 for receiving and outputting a media signal transmitted wirelessly as shown therein; A computer 52 mounted with an operating system supporting the wireless monitor 51; And a television cradle 30 for outputting a media signal to the wireless monitor 51.

The wireless monitor 51 is a mobile device with a built-in operating system, which is easy to carry, and a boot image or BIOS is stored in a flash memory. The monitor can be upgraded to a new boot image by removing a compact flash card and supports compact flash card media. .

The WLAN embedded in the wireless monitor 51 uses a communication bandwidth of about 10 Mbps using 802.11b, and an external interface block, that is, an embedded controller, controls peripheral devices such as a USB, a keyboard, and a mouse.

The computer 52 is equipped with an operating system supporting the wireless monitor 51. And, the configuration of the television cradle 30 is as follows.

4 is a block diagram showing the detailed configuration of the television cradle of Figure 3, a tuner 31 for receiving a cable broadcast by wire or by receiving an over-the-air broadcast as shown therein and outputting a broadcast signal; A video / audio input / output terminal to which an external multimedia device is connected; A video decoder 35 for receiving and decoding a video signal input from the tuner 31 or a video input terminal; A video processor (36) for processing the video signal decoded by the video decoder (35); An audio decoder 32 for receiving and decoding an audio signal input from the tuner 31 or an audio input terminal; An audio processor (34) for processing the audio signal decoded by the audio decoder (32); A hard disk 38 connected to the system address / data bus by the CPU 40 supporting the ATA interface; An optical disc video drive 37 connected to the system address / data bus by a CPU 40 supporting the ATAPI interface; A VDSL multicarrier modulation block 41 for multicarrier demodulating the signal of the VDSL analog front end 42; An ATM controller 39 for transmitting and receiving a data signal modulated by the VDSL multicarrier modulation block 41 through a utopia interface; It consists of a wireless LAN 44 which transmits MPEG encoded NTSC television MPEG 2 compressed files by the video / audio processors 34 and 36.

The tuner 31 receives a cable broadcast by wire or receives an over-the-air broadcast to output a broadcast signal. The video / audio input / output stages consist of audio left / right and video RCA jacks or S-video jacks.

A multimedia player with an external connection interface may be connected to the video / audio input / output terminal, and the internal hard disk 38 may store notebook screen information and store it as a file without a separate storage device.

The video signal input from the tuner 31 or the video input terminal is input to the video processor 36 through the video decoder 35. At this time, the video processor 36 receives an ITU.R 656 8-bit digital video signal, a video clock, and a sync signal.

The audio signal input from the tuner 31 or the audio input terminal is input to the audio processor 34 through the audio analog / digital converter 33 through the audio decoder 32. At this time, the audio processor 34 receives an audio clock and an audio signal.

The hard disk 38 is connected to the system address / data bus by the CPU 40 supporting the ATA interface, and the optical disk video drive 37 is the system address / data bus by the CPU 40 supporting the ATAPI interface. Is connected to.

VDSL has QAM and DMT (Multiple Carrier Modulation) schemes. Currently, the scheme used in the present invention is a DMT scheme that enables a high bit rate to perform a broadband AP function. The DMT method has good performance, resists signal noise and channel disturbances, and has bit rate adaptation.

The signal coming from the VDSL analog front end 42 is multicarrier modulated and demodulated in the VDSL multicarrier modulation block 41 to be converted into a data signal, which is then matched with the Internet via an ATM controller 39 via a utopia interface.

The WLAN 44 may transmit an NTSC television MPEG 2 compressed file requiring about 6Mbps using 802.11b.

Hereinafter, a multimedia service provided in a wireless television environment including a television cradle, a wireless monitor, and a computer will be described.

The television cradle 30 performs a broadcast function on the television and multimedia reception channels to transmit video / audio signals to multiple wireless monitors. In a conventional smart display, only one smart display can receive video / audio signals, but the television cradle 30 broadcasts television and multimedia data to simultaneously receive video / audio signals from multiple wireless monitors, thereby providing multimedia services. To provide.

For example, a user may receive and watch desired television and multimedia data through separate wireless monitors simultaneously in different rooms or offices. In addition, the wireless monitor 51 may output a video / audio of a television and a multimedia by connecting a large television to the video / audio output terminal.

The television cradle 30 implements an access point (AP) function based on a wireless LAN to enable wireless connection with a plurality of computers, and provides a multimedia service by connecting to a wireless monitor 51. Thus, the television cradle 30 supports a multimedia system that performs various network functions.

Although the wireless monitor 51 is movable with a built-in battery, the television cradle 30 is installed at a fixed location in the home because it is connected to a commercial power source. When the wireless monitor 51 is docked in the television cradle 30, the battery of the wireless monitor 51 is charged through the coupling terminal.

The wireless monitor 51 receives a video / audio signal from the television cradle 30 through a wireless LAN, decodes it through an MPEG decoder, and outputs it.

The wireless monitor 51 connects to the computer 52 through the RDP channel to access the information stored in the computer 52. If the wireless monitor 51 is connected to the television cradle 30 may be connected using a separate communication protocol. In the present invention, UDP is used as the communication protocol.

In a television broadcasting environment, when the communication environment is not good, UDP is used to immediately ignore the transmitted wireless data, and a TCP / IP connection is possible.

Even if the user uses the wireless monitor 51 in connection with the computer 52, the user can enjoy a multimedia by connecting a separate general monitor or display panel and an audio speaker with the television cradle 30.

The multimedia service in the wireless television environment has been described above, and the user operation method is as follows.

The user executes the television media player of the wireless monitor 51 to change television channels to watch television broadcasts, and adjusts the volume and resolution to set a desired viewing environment.

The television media player receives the broadcast signal transmitted in real time from the television cradle 30 to provide a live broadcast to the user, and receives and plays the media data stored in the optical disk video drive of the television cradle 30 or the media stored in the hard disk. Receive and play back data.

The user selects a desired job using the multiple image command interface of the wireless monitor 51 to operate the television cradle 30 and the computer 52. The user interface provided by the television cradle 30 and the computer 52 may be output on the screen of the wireless monitor 51, or an additional menu of the multiple image command interface may be displayed.

When a user selects a television broadcast in a multiple image command interface, the same television broadcast can be viewed through multiple wireless monitors. If you choose media broadcasts instead of television broadcasts, you can watch the same media in addition to television broadcasts. The user can then watch television broadcast while carrying and moving the wireless monitor within the service radius of the television cradle.

The user may record and store a television broadcast in the television cradle 30 or receive media data from an image device connected to an external interface, store the media data on a hard disk, and play the video at a desired time.

When the battery of the wireless monitor 51 is discharged to a predetermined level or less, the user may mount the wireless monitor 51 on the television cradle 30 to charge the battery and use it as a wired monitor.

The user connects the VDSL communication network to the television cradle 30 to use the broadband Internet or the television cradle 30 as an access point of the WLAN to use as a broadband multimedia hub.

The broadband multimedia hub supports the above-described television broadcast and media broadcast, and is the basis for providing various multimedia services to the user. A user may watch a variety of media by using the television cradle 30 as a home media broadcasting station and using the wireless monitor 51 as a media receiver.

As described in detail above, the present invention uses the television cradle as a broadband multimedia hub so that the wireless monitor can be moved anywhere in the home, so that the user can watch various media at a desired place and supports the broadcast function in the television cradle. By doing so, the user can watch the same media simultaneously through multiple wireless monitors.

1 is an exemplary view showing the configuration of a conventional television cradle and a wireless monitor.

Figure 2 is an exemplary view showing the configuration of a conventional computer and a wireless monitor.

3 is an exemplary view showing the configuration of a television cradle, a wireless monitor, a computer according to an embodiment of the present invention.

4 is a block diagram showing a detailed configuration of the television cradle of FIG.

** Description of the symbols for the main parts of the drawings **

30: Television Cradle 51: Wireless Monitor

52: computer

Claims (2)

A wireless monitor for receiving an MPEG compressed file transmitted wirelessly through an WLAN and decoding the MPEG file; MPEG encoder to encode and output television broadcast signals and media data stored in media storage media, WLAN to broadcast the MPEG encoded MPEG compressed files to multiple wireless monitors, and battery in combination with the wireless monitors. And a television cradle configured to include a charging circuit for charging and a broadband communication module connected to the broadband communication network to provide a broadband internet service. The apparatus of claim 1, wherein the television cradle comprises: a tuner for receiving cable broadcasting by wire or receiving over-the-air broadcasting to output a broadcast signal; A video / audio input / output terminal to which an external multimedia device is connected; A video decoder which receives and decodes the video signal input from the tuner or the video input terminal; A video processor for MPEG encoding the video signal decoded by the video decoder; An audio decoder which receives and decodes an audio signal input from the tuner or an audio input terminal; An audio processor for MPEG encoding the audio signal decoded by the audio decoder; A hard disk for storing media data encoded by the video / audio processor; An optical disc video drive that reads video / audio signals stored on an optical disc and delivers the same to the video / order processor; A multicarrier modulation block for multicarrier modulation and demodulation of a signal of an analog front end; An AT controller for transmitting and receiving a data signal modulated by the multicarrier modulation block through a utopia interface; And a wireless LAN for wirelessly transmitting an MPEG compressed file encoded by the video / audio processor.