KR101021219B1 - Small scale digital broadcasting equipment - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small scale digital broadcasting equipment, comprising: an image input module for selecting and outputting video signals from a plurality of video terminals; and an encoding module for encoding and outputting video signals input from the video input module as MPEG-2 TS signals. And an ASI receiving module converting the received MPEG-2 ASI signal into an MPEG-2 TS signal and outputting the modulated MPEG-2 TS signal outputted from the encoding module or the ASI receiving module and transmitting the RF-2 signal as an RF broadcast signal. A code modulation device having a code modulation unit having a modulation module, a broadcast reception module for receiving an RF broadcast signal, converting the signal to an MPEG-2 TS signal, and outputting the MPEG-2 TS signal, and an MPEG-2 TS signal output from the broadcast reception module. A storage module for storing and storing the MPEG-2 TS signal input from the broadcast receiving module as an MPEG-2 TS file in the storage module and reproducing it in the storage module. By including a recording and reproducing apparatus having a recording and reproducing module that reads the desired MPEG-2 TS file, converts it into an MPEG-2 ASI signal, and outputs it, it is possible to broadcast simply and conveniently on a cheap small digital broadcasting equipment.

Description

Small Digital Broadcasting Equipment {SMALL SCALE DIGITAL BROADCASTING EQUIPMENT}

The present invention relates to a small scale digital broadcasting equipment, and more particularly, to a small scale digital broadcasting equipment which enables simple and convenient digital broadcasting with cheap equipment in public institutions or schools.

Currently, there are many places where small-scale broadcasting equipment is distributed in public institutions, companies or schools to broadcast events. However, these conventional small broadcasting equipments are mostly analog broadcasting equipments, and all of them have to be operated by hand and the broadcasting process is very complicated.

As a result, it is difficult to know the exact usage, and in many cases, the usage method is not properly delivered in the process of taking over the predecessor and the successor, so that only limited functions are used.

In addition, the TV in the classroom is being converted to digital, and many devices such as the camera in the broadcasting room are also digitized, but the operating system is still analogous, and there is a problem that even if there is a digital TV in the classroom, the digital program can not be properly watched. .

On the other hand, there is no movement to introduce digital broadcasting equipment in line with this trend, but the cost of digital broadcasting equipment imported from abroad is quite expensive, and its function is complicated and scaled as it is made of broadcasting equipment for use in TV stations. In addition to the massive, there was a problem that you need to purchase and install a separate device in order to use in public institutions, companies or schools.

In order to solve the above problems, an object of the present invention is to provide a small-scale digital broadcasting equipment that is low cost in public institutions, companies or schools, can be installed without the purchase of a separate device, simple and convenient digital broadcasting It is done.

In order to achieve the above object, the small-scale digital broadcasting equipment according to the present invention comprises an image input module for selecting and outputting a video signal from a plurality of video terminals, and encoding the video signal input from the video input module to MPEG-2 TS. A coding module for outputting a signal, an ASI receiving module for converting the received MPEG-2 ASI signal into an MPEG-2 TS signal, and outputting the modulated MPEG-2 TS signal outputted from the encoding module or the ASI receiving module A code modulation device having a code modulation unit having a modulation module for transmitting an RF broadcast signal, a broadcast receiving module for receiving an RF broadcast signal, converting the signal to an MPEG-2 TS signal, and outputting the MPEG-2 TS signal; A storage module for storing the MPEG-2 TS signal, and an MPEG-2 TS signal input from the broadcast receiving module as an MPEG-2 TS file in the storage module and The present invention provides a recording and reproducing apparatus including a recording and reproducing module for reading and converting an MPEG-2 TS file to be reproduced by a storage module into an MPEG-2 ASI signal.

The code modulation device includes a plurality of code modulation units, and the storage module is divided into a plurality of storage media corresponding to each of the plurality of code modulation units, and the recording and reproducing module transmits the broadcast based on the setting of the storage medium. MPEG-2 TS signals stored in an MPEG-2 TS signal input from a receiving module to any one of the plurality of storage media, and read MPEG-2 TS files to be played on any one of the plurality of storage media. It is preferable to convert the signal into a signal modulation unit corresponding to the storage medium in which the MPEG-2 TS file is stored among the plurality of code units.

And a combiner for mixing the RF broadcast signals transmitted from each of the plurality of code modulation units and the RF broadcast signals of terrestrial digital broadcasts and transmitting them as a digital broadcast signal, wherein the broadcast receiving module is transmitted from the combiner. Preferably, the digital broadcast signal is received as an RF broadcast signal, converted into an MPEG-2 TS signal, and output.

The code modulation device may further include a multiplexing module configured to multiplex and output MPEG-2 TS signals output from the encoding module and the ASI receiving module.

The encoding module encodes the input image signal into a standard definition image and outputs it as an MPEG-2 TS signal. The broadcast receiving module converts the received image signal into a high definition image and outputs a high definition image. If the signal is a standard definition image, it is preferable to convert the image into a standard definition image and output the same.

And a switching hub device for connecting the plurality of code modulation units and the recording / playback device, wherein the recording / playback device includes an interface module capable of providing a working environment for the user to operate various menus; The apparatus may further include a central processing module configured to control the code modulation device through the switching hub device according to a menu operation.

The interface module may be connected to and communicate with a monitor capable of displaying various graphical menus to a user and a mouse capable of operating various graphical menus displayed on the monitor.

The central processing module may display an electronic program schedule on the monitor through the interface module, and reserve recording of a broadcast program to be recorded selected from the electronic program schedule.

With the above configurations, the present invention is inexpensive and can be easily installed in a public institution, a company or a school without purchasing a separate device.

In addition, the present invention can correlate a plurality of storage media with a plurality of code conversion units to guarantee reproduction quality and to simultaneously reproduce a plurality of programs.

In addition, the present invention can reduce circuit components by mixing RF broadcast signals of a plurality of code modulation units and RF broadcast signals of terrestrial digital broadcast in a combiner and supplying the mixed digital broadcast signal to a recording / playback apparatus. It is also possible to minimize signal lines between devices.

In addition, in the present invention, high definition (HD) video can be recorded and reproduced as a high definition (HD) video for high quality, and real time live broadcasting can provide high quality at a low cost by broadcasting in standard definition (SD) quality.

In addition, the present invention can be operated very simply and conveniently by allowing the user to operate all the devices of the broadcast equipment with the click of a mouse.

In addition, the present invention enables recording reservation and schedule broadcasting using an electronic program schedule (EPG).

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

1 is a conceptual diagram illustrating a region to which a small scale digital broadcasting device is applied according to an embodiment of the present invention.

As shown in FIG. 1, the small-scale digital broadcasting equipment 100 selects, encodes, and modulates video and audio signals transmitted from the camcorder 10 or the video player 20, and then, for example, each digital TV (eg, a classroom). A code modulation device 110 for transmitting to 30, 40, and 50, and a recording / playback device 120 for recording a digital broadcast program and reproducing the recorded digital broadcast program and transmitting the same to the code modulation device 110. Include.

2 is a block diagram of a small scale digital broadcasting equipment according to an embodiment of the present invention.

As shown in FIG. 2, the small digital broadcasting equipment 100 includes a code modulation device 110, a recording / playback device 120, a monitor 250, a mouse 260, a switching hub 270, and a combiner. 280.

First, the code modulation device 110 may include three code modulation units 210, 210 ', and 210 ", and the three code modulation units 210, 210', and 210" have the same configuration. As shown in FIG. 2, the following description will focus on the code modulation unit 210.

The code modulation unit 210 includes an image input module 212, an encoding module 214, a multiplexing module 216, a modulation module 218, an ASI receiving module 220, and a code modulation control module 222.

The video input module 212 may receive a video / audio signal from the camcorder 10, the video player 20, or the like. That is, the image input module 212 selects a video / audio signal that can be input from a plurality of video / audio terminals and outputs the video / audio signal to the encoding module 214.

The encoding module 214 is a module for encoding a video / audio signal input from the video input module 212 by using a compression technique. MPEG (Moving Picture Experts Group) 2 technology, which is a video compression technique, is applied to the encoding module 214 to encode and output a video / audio signal input from the video input module 212 into an MPEG-2 TS (Transport Stream) signal. .

MPEG-2 technology is generally used for transmission of video and audio information for digital broadcasting such as digital satellite broadcasting and digital cable broadcasting. MPEG-2 is similar to MPEG-1 but supports interlaced video used in television broadcasting. The distinguishing feature of MPEG-2 from MPEG-1 is that TS (Transport Stream), which is suitable for a transmission environment with a lot of data loss, is defined, which is currently used for digital broadcasting. MPEG-2 also includes a standard for HDTV (high definition television) transmission, originally intended for development with MPEG-3.

On the other hand, the encoding module 214 applied to the present invention is to encode and broadcast live video or analog stored video, it is preferable to employ the SD image compression technology so that it can be applied at a low cost.

The multiplexing module 216 multiplexes the MPEG-2 TS signal encoded by the encoding module 214 and the MPEG-2 TS signal output from the ASI receiving module 220 to output to the modulation module 218.

The modulation module 218 modulates the MPEG-2 TS signal output from the multiplexing module 216 into an RF (Radio Frequency) broadcast signal by applying 8VSB technology.

The ASI receiving module 220 receives the MPEG-2 ASI (Asynchronous Serial Interface) signal transmitted from the ASI conversion unit of the recording / reproducing apparatus 120, converts the MPEG-2 TS signal, and outputs the MPEG-2 TS signal to the multiplexing module 216.

In addition, the code modulation control module 222 may communicate with the central processing module 244 of the recording and playback apparatus 120 through the switching hub 270. The code modulation control module 222 is an image input module 212 and an encoding module 214 according to a command from the central processing module 244 according to a user's menu operation through the interface module 242 of the recording / playback apparatus 120. ) And the multiplexing module 216 may be controlled.

The plurality of code modulation units 210 and 210'210 "may be separated separately, but all the components of the code modulation unit 210 are integrated and integrated into one unit, thereby reducing the space area. It is possible to avoid the trouble of connecting the signal lines.

The recording / playback apparatus 120 includes a broadcast receiving module 232, a storage module 234, a recording / playback module 236, an interface module 242, and a central processing module 244.

The broadcast receiving module 232 receives the RF broadcast signal of the terrestrial broadcast, converts it into an MPEG-2 TS signal, and outputs the converted signal. Since MPEG-2 also includes a standard for HDTV (high definition television) transmission, the broadcast receiving module 232 can receive and demodulate HD video signals transmitted by terrestrial broadcasting and output them as MPEG-2 TS signals.

The storage module 234 stores the MPEG-2 TS signal output from the broadcast receiving module 232. The storage module 234 is divided into a plurality of storage media A, B, and C. The storage media A, B, and C may be HDDs, for example.

Each of the plurality of storage media A, B, and C corresponds to the conversion circuits A, B, and C of the ASI converter 240, and each of the conversion circuits A, B, and C of the ASI converter 240 Corresponding to each of the code modulation units 210, 210 ', 210 ".

Since the storage module 234 has a plurality of storage media, the storage module 234 can be classified and stored by time, program, or grade so that the storage module 234 can be managed and stored. In addition, when the digital broadcasting program to be recorded in the future is to be reproduced by the code modulation unit 210, it is easily reproduced by simply selecting and recording the storage medium A from among the plurality of storage media A, B, and C.

The recording / playback module 236 includes a recording / playback unit 238 and an ASI conversion unit 240. The recording and playback unit 238 stores the MPEG-2 TS signal input from the broadcast receiving module 232 in the storage module 234 as an MPEG-2 TS file, and the MPEG-2 TS to be reproduced in the storage module 234. The file is read and output to the ASI converter 240. The ASI conversion unit 240 converts the input MPEG-2 TS file into an MPEG-2 ASI signal and transmits the converted MPEG-2 TS file to the ASI receiving module 220 of the code modulation device 110.

On the other hand, when the recording and playback unit 238 receives a recording signal from the central processing module 244 to the storage medium A, for example, to record the first grade Korean program, the recording and playback unit 238 controls to record the first grade Korean program to be recorded on the storage medium A. When the reproduction signal for broadcasting the first grade Korean program is recorded, the first grade Korean program recorded by the storage medium A is reproduced and output to the conversion circuit A of the ASI converter 240. The conversion circuit A of the ASI conversion unit 240 then converts the first-year Korean language program into an MPEG-2 ASI signal and transmits it to the ASI receiving module 220 of the code conversion unit 210.

The interface module 242 is for providing an environment in which a user can operate various menus using the mouse 260 and is connected to the monitor 250 and the mouse 260.

The central processing module 244 controls the broadcast receiving module 232 and the recording / reproducing module 236 based on the menu setting contents input through the interface module 242, and controls the image input module ( 212, control signals are transmitted to the sign modulation control module 222 through the switching hub 270 to control the encoding module 214, the multiplexing module 216, and the modulation module 218.

The monitor 250 is a flat panel monitor such as an LCD, and various menus that can be operated by a user are displayed in a graphic form.

The mouse 260 is an input device that helps a user to set desired contents and the like from various menus in a graphic form displayed on the monitor 250.

The switching hub 270 is a communication device for connecting the plurality of code modulation units 210, 210 ', 210 "and the recording / playback apparatus 120. The central processing module 244 of the recording / playback apparatus 120 is Transmit control signals for controlling the image input module 212, the encoding module 214, the multiplexing module 216, and the modulation module 218 of the code modulation device 110 through the switching hub 270 and also the code modulation device. The state of 110 can be checked.

The combiner 280 mixes the RF broadcast signals transmitted from each of the plurality of code modulation units 210, 210 ', and 210 "and transmits them as digital broadcast signals.

FIG. 3 is a diagram illustrating a connection of the small scale digital broadcasting equipment shown in FIG. 2.

3, only the code modulation device 110, the recording / reproducing device 120, the switching hub 270, and the combiner 280 are shown among the small scale digital broadcasting equipment 100 shown in FIG. 2.

The code modulation device 110 includes three code modulation units 210, 210 ', and 210 ", each of which is a plurality of video / audio inputs to input terminals. Terminals, and an ASI-IN terminal, an ASI-OUT terminal and an RF OUT terminal as output terminals, and a 100BASE-T terminal as a control terminal.

The combiner 280 not only mixes the RF broadcast signals transmitted from each of the plurality of code modulation units 210, 210 ', and 210 ", but also receives RF broadcast signals of terrestrial digital broadcasts to receive a plurality of code modulation units ( 210, 210 ', and 210 "may be mixed with the RF broadcast signal transmitted from each of them. The digital broadcast signal transmitted from the combiner 280 is not only distributed to each digital TV 30, 40, 50 such as a classroom, but also input to the broadcast receiving module 232 of the recording / playback apparatus 120.

The recording and reproducing apparatus 120 is connected to receive the digital broadcast signal transmitted from the combiner 280 as an RF broadcast signal. The RF broadcast signal input to the recording / playback apparatus 120 is converted into an MPEG-2 TS signal and recorded in one of a plurality of storage media A, B, and C of the storage module 234 according to a user's setting. In this case, the RF broadcast signal of the terrestrial digital broadcast is stored as an HD video file, and the RF broadcast signal encoded by the encoding module 214 of the code modulation device 110 is stored as an SD video file.

When the user selects the storage medium A from among the storage mediums A, B, and C of the storage module 234 for the recording broadcast, the conversion circuit A of the ASI conversion unit 240 operates to convert the converted MPEG-2 ASI. The signal is received at the ASI receiving module 220 via the ASI IN terminal of the sign modulation unit 210. The MPEG-2 TS signal converted by the ASI receiving module 220 is again output to the combiner 280 through the multiplexing module 216 and the modulation module 218.

The switching hub 270 connects the plurality of code modulation units 210, 210 ′, 210 ″ and the recording / playback apparatus 120 to a 100BASE-T terminal which is a control terminal.

4 is a diagram illustrating an example of a GUI screen for setting a small digital broadcasting device according to an embodiment of the present invention.

The GUI screen 400 for setting up the small digital broadcasting equipment shown in FIG. 4 is for a school broadcasting system, and the GUI screen 400 largely includes an equipment setting menu 410, a digital broadcasting menu 420, and a digital broadcasting recording. A management menu 430, a campus broadcast recording file menu 440, and a campus broadcasting / recording management menu 450 are provided.

The equipment setting menu 410 is related to the code modulation device 110 and is a menu used when broadcasting a real-time live broadcast such as school instruction or an image stored in analog.

The digital broadcast menu 420 is related to the broadcast receiving module 232 of the recording and reproducing apparatus 120. The digital broadcasting menu 420 selects a broadcasting station and manages a channel for recording terrestrial broadcasting, and monitors a real-time screen in case of a real-time broadcasting. The menu used for.

The digital broadcast recording management menu 430 is related to the broadcast receiving module 232 and the recording reproducing module 236 of the recording and reproducing apparatus 120. In particular, the recording time and the plurality of storage media A, This is the menu to set where to record from B, C).

The campus broadcast recording file menu 440 relates to the storage module 234 of the recording / reproducing apparatus 120 and includes files recorded in a plurality of storage media A, B, and C of the storage module 234, for example, first grade. When set to correspond to the storage medium A, files recorded in the storage medium A are displayed in the first grade area.

The campus broadcasting recording file management menu 450 is related to the recording / reproducing module 236 of the recording / reproducing apparatus 120. In particular, the campus broadcasting recording file management menu 450 is used to reproduce and broadcast the recording file recorded in the storage module 234.

Hereinafter, operations of a small scale digital broadcasting apparatus according to an embodiment of the present invention will be described using the GUI screen of FIG. 4 described above.

FIG. 5 is a flowchart for real-time broadcasting using the GUI screen of FIG. 4.

The user clicks the equipment setting menu 410 on the GUI screen 400 to select the real time broadcast of FIG. 4 (S502).

The user selects at least one of the plurality of code conversion units 210, 210 ', 210 "for real-time broadcasting, and also inputs connected to a real-time relay device, for example, the camcorder 10 or the video player 20. The video / audio signal is selected from the terminals (S504).

When a plurality of code conversion units 210, 210 ′, 210 ″ and an input terminal are selected, they are transferred to the central processing module 244 through the interface module 242, and the central processing module 244 is the switching hub 270. The broadcast on signal and the input terminal selection signal are transmitted to the code modulation control module 222 of the corresponding code conversion unit 210 through the code conversion control module 222 according to the received code on unit according to the received broadcast on signal. The coding module 214, the multiplexing module 216, and the modulation module 218 of 210 are activated and video / audio signals from the input terminals are selected according to the input terminal selection signal (S506).

The code modulation unit 200 outputs an RF broadcast signal by encoding and modulating a video / audio signal selected for real time broadcasting (S508).

FIG. 6 is a flowchart for recording a digital broadcast using the GUI screen of FIG. 4.

The user clicks channel management in the digital broadcast menu 410 on the GUI screen 400 for recording of the digital broadcast in FIG. 4 (S602).

The user searches for a digital broadcast channel that can be received using channel management, and selects a digital broadcast channel, that is, a broadcast station, to be recorded from the search channel (S604).

The user clicks the digital broadcast recording management menu 430 and sets a recording date and a recording time corresponding to the broadcast program to be recorded (S606). In this case, when the EPG (Electronic Program Guide) is clicked to refer to the broadcast program, the recording time is displayed together with the title so that the recording time can be easily set.

The user selects any one of first grade, second grade, and third grade as a storage location of a broadcast program to be recorded (S608).

Finally, when the recording schedule is registered, the central processing module 244 operates the timer and when the recording time comes (S610), controls the broadcast receiving module 232 to receive and demodulate the set digital broadcast channel, and the storage module 234. The recording signal is outputted to the recording / reproducing module 236 for storage in the corresponding storage medium. Therefore, the recording and reproducing apparatus 120 starts recording (S612).

Meanwhile, the code modulation device 110 may be activated to record a video / audio signal input from the camcorder 10 or the video player 20. In this case, the code modulation device 110 is activated to output the RF broadcast signal, and the recording time and the recording position may be set as in the recording of the digital broadcast.

FIG. 7 is a flowchart for digital reproduction broadcasting of a recorded image file using the GUI screen of FIG. 4.

The user clicks the campus broadcast recording file management menu 450 to select the recording broadcast on the GUI screen 400 of FIG. 4 (S702).

The user selects one of first grade, second grade, and third grade from a plurality of storage media, that is, a recorded file position, to select a recorded program to be broadcast (S704).

In addition, the user selects a program to be played for broadcasting at the selected recording file position (S706).

In the case of a reserved broadcast, the user sets a broadcast date and time of a program to be reproduced (S708).

Finally, when the reserved broadcast is registered, the central processing module 244 operates the timer and when the scheduled broadcast time arrives (S710), the recording / playback module 236 plays and outputs the recorded file from the corresponding storage medium A of the storage module 234. Outputs a playback signal to the code modulation control module 222 of the code modulation device 110 so that the ASI receiving module 220, the multiplexing module 216, and the modulation module 218 can be operated. Outputs Therefore, the video signal reproduced by the recording and playback device 120 is transmitted through the code modulation device 110 (S712).

The protection scope of the present invention should be interpreted by the claims below. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It should be interpreted that it is included in the scope of right.

1 is a conceptual diagram illustrating a region to which a small scale digital broadcasting device is applied according to an embodiment of the present invention.

2 is a block diagram of a small scale digital broadcasting equipment according to an embodiment of the present invention.

FIG. 3 is a diagram illustrating a connection of the small scale digital broadcasting equipment shown in FIG. 2.

4 is a diagram illustrating an example of a GUI screen for setting a small digital broadcasting device according to an embodiment of the present invention.

FIG. 5 is a flowchart for real-time broadcasting using the GUI screen of FIG. 4.

FIG. 6 is a flowchart for recording a digital broadcast using the GUI screen of FIG. 4.

FIG. 7 is a flowchart for digital reproduction broadcasting of a recorded image file using the GUI screen of FIG. 4.

Claims (8)

An image input module that selects and outputs a video signal from a plurality of video terminals, an encoding module that encodes a video signal input from the video input module and outputs the MPEG-2 TS signal, and receives the received MPEG-2 ASI signal into MPEG A plurality of code modulation units having an ASI receiving module for converting and outputting a -2 TS signal, and a modulation module for modulating MPEG-2 TS signals outputted from the encoding module or the ASI receiving module and outputting them as RF broadcast signals; The provided code modulation device, A broadcast receiving module which receives an RF broadcast signal, converts it into an MPEG-2 TS signal, and outputs the MPEG-2 TS signal, a storage module for storing the MPEG-2 TS signal output from the broadcast receiving module, and an MPEG input from the broadcast receiving module -2 A recording and reproducing apparatus including a recording and reproducing module for storing a TS signal as an MPEG-2 TS file in the storage module and reading and converting an MPEG-2 TS file to be reproduced by the storage module into an MPEG-2 ASI signal. Wow, and A switching hub device for connecting said plurality of code modulation units and said video recording / reproducing device, The recording and reproducing apparatus includes an interface module for providing a working environment for a user to operate various menus, and a central processing module for controlling the code modulation device through the switching hub device according to a user's menu manipulation. Small digital broadcasting equipment, characterized in that. The method of claim 1, The storage module is divided into a plurality of storage media corresponding to the plurality of code modulation units, and the recording / reproducing module outputs the plurality of MPEG-2 TS signals input from the broadcast receiving module based on the setting of the storage medium. MPEG-2 TS files are stored in any one of the storage media, and the MPEG-2 TS files to be read and reproduced in any one of the plurality of storage media are converted into MPEG-2 ASI signals, 2. The small-scale digital broadcasting equipment of claim 2, wherein the TS file is output to a corresponding code modulation unit corresponding to the storage medium in which the TS file is stored. The method of claim 2, A combiner for mixing the RF broadcast signals transmitted from each of the plurality of code modulation units and the RF broadcast signals of terrestrial digital broadcasts and transmitting them as a digital broadcast signal, And the broadcast receiving module receives a digital broadcast signal transmitted from the combiner as an RF broadcast signal, converts the digital broadcast signal into an MPEG-2 TS signal, and outputs the converted MPEG-2 TS signal. The method according to any one of claims 1 to 3, And the coded modulation device further comprises a multiplexing module for multiplexing and outputting MPEG-2 TS signals output from the encoding module and the ASI receiving module. The method of claim 4, wherein The encoding module encodes the input video signal into a standard definition video and outputs the MPEG-2 TS signal. And the broadcast receiving module converts and outputs a high definition image if the received RF broadcast signal is a high definition image, and converts and outputs a standard definition image if the received RF broadcast signal is a standard definition image. delete The method of claim 1, And the interface module is connected to a monitor capable of displaying various graphic menus to a user and a mouse capable of manipulating various graphical menus displayed on the monitor. The method of claim 7, wherein And the central processing module is configured to display an electronic program schedule on the monitor through the interface module and to pre-record a broadcast program to be recorded selected from the electronic program schedule.

Images