KR20090120270A - Apparatus for recording/playing and method of recording broadcasting signal - Google Patents

Abstract

PURPOSE: A device for recording/playing and a method for recording broadcasting signal are provided to prevent the piracy of the copyright for the stored contents of the digital broadcast contents by providing warning message for copyright infringement preventing for recorded material to the user before the DVR function is activated. CONSTITUTION: The generation of the recording/playing mode enable signal is sensed. When the recording/playing mode enable signal is sensed, the warning message for copyright infringement preventing is outputted. The user observance information inputted from the user is received, and the activation of the recording/playing mode enable signal is determined based on the received user observance information.

Description

Apparatus for recording / playing and method of recording broadcasting signal}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus capable of receiving, storing, and reproducing broadcast signals, and more particularly, to a method for storing received broadcast signals in a storage medium of a broadcast receiver.

Digital broadcasting is a broadcast that digitizes, processes, transmits and receives broadcasting signals such as voice, data, and video, and transmits them to a digital transmission system. Individual devices such as devices and signal switches are all digital, and digital broadcast signals are broadcast in standardized digital broadcast.

In general, digital broadcasting is multichannel / multimedia broadcasting, unlike conventional analog broadcasting, not only providing high-quality / high-quality service but also having versatility. Versatility is a new service that provides multimedia information through broadcast media. It refers to data broadcasting or interactive broadcasting. Data broadcasting is a broadcast that uses information as a broadcast receiver by transmitting multimedia data such as text, still images, graphics, documents, and software, and is a service that best fits the current trend of convergence of broadcasting and communication. With this versatility, digital broadcasting provides additional convenience functions to the viewer by mounting a storage medium such as a hard disk drive (HDD) or flash memory (Flash memory) in the broadcast receiver. An additional convenience feature is the Digital Video Recording (DVR) function. DVR is a function to record the current broadcast to watch later, or to rewind or pause the live broadcast.

To provide digital broadcast services, middleware platform providers need to access multimedia data that is distributed and distributed over a number of heterogeneous broadcast and web-enabled networks. These networks generally include, for example, Digital Video Broadcasting (DVB) (including DVB-C (cable), DVB-T (terrestrial), and DVB-S (satellite)), OpenCable.TM. Application platforms. (OpenCable.TM.OCAP: Applications Platform), Next Generation Television System Committee (ATSC), National Television System Committee (NTSC), GI Motorola Network, Multimedia Home Platform (MHP), Digital Multimedia Broadcasting (DMB) standards, etc. Based on each US or European industry digital broadcast standard, including. In particular, the MHP standard extends existing DVB standards for broadcast and interactive services in all transport networks, including satellite, cable, terrestrial and microwave. The DVB / MHP standard defines a hardware independent, interface between the terminals and interactive digital applications that they run. This allows digital content providers to handle all types of terminals, from low functionality to high functionality set top boxes, integrated digital TV sets and multimedia PCs.

SUMMARY OF THE INVENTION The present invention provides a recording / playback apparatus and a broadcast recording process for preventing infringement of copyright on stored content and inducing a user to legally use the stored content in storing the received digital broadcast content in a storage medium. To provide a way.

Another technical problem to be solved by the present invention is to prevent copyright infringement on recordings in storing the received digital broadcasting content in a storage medium, thereby protecting copyrights on the broadcasting contents, and reducing the responsibility of broadcast receiver manufacturers for recording copyright infringement. The present invention provides a recording / playback apparatus and a broadcast recording processing method.

Another object of the present invention is to provide a recording / playback apparatus and a broadcast recording processing method for inducing a user to legally use a recording in accordance with a right to use a recording in storing received digital broadcasting content in a storage medium. To provide.

In order to achieve the above technical problem, the broadcast signal recording method according to the present invention, detecting the generation of the recording / playback mode activation signal; Outputting a message for preventing copyright infringement when the recording / playback mode activation signal is detected; And receiving user compliance information input from a user, and determining whether to activate a recording / playback mode based on the received user compliance information.

The recording / playback mode activation signal may be input from a user. In addition, the recording / playback mode activation signal may be a USB connection signal of an external storage medium.

Preferably, in the step of determining whether the recording / playback mode is activated, when the user compliance information is compliance approval information, it may be determined that the recording / playback mode is activated. In the determining of whether the recording / playback mode is activated, when the user compliance information is the non-compliance information, it may be determined that the recording / playback mode is inactivated.

Preferably, in the outputting of the message, the message may be selectively output according to the usage right information indicating the user's right to use the recording.

In order to achieve the above technical problem, a recording / playback apparatus according to the present invention comprises: a user interface for displaying information or commands and receiving information or commands from a user; And detecting the recording / playback mode activation signal, and when the recording / playback mode activation signal is detected, control the user interface to output a message for preventing copyright infringement, and observe the user input from the user interface. And a storage / playback control unit for determining whether the recording / playback mode is activated based on the information.

The recording / playback mode activation signal may be input from a user. In addition, the recording / playback mode activation signal may be a USB connection signal of an external storage medium.

Preferably, the storage / playback control unit may determine that the recording / playback mode is activated when the user compliance information is compliance approval information. The storage / playback control unit may determine that the recording / playback mode is deactivated when the user compliance information is non-compliance information.

Preferably, the storage / playback control unit may control the message to be selectively output according to the usage right information indicating the user's right to use the recording.

According to the present invention, the recording / playback apparatus and the broadcast recording processing method provide a user with a warning message for preventing copyright infringement of a recording before the DVR function is activated. It is possible to prevent the infringement of copyrights and to induce users to legally use the stored contents.

In addition, if you do not agree to the contents of the warning message to prevent copyright infringement on the recording, the DVR function will be disabled, thus preventing copyright infringement on the recording and protecting the copyright of the broadcast contents. Can alleviate the responsibility of broadcast receiver manufacturer.

In addition, according to the user's right to use the recording is selectively determined whether or not to output the warning message for copyright infringement prevention, it is possible to induce the user to use the recording legally in accordance with their own usage rights.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described. At this time, the configuration and operation of the present invention shown in the drawings and described by it will be described as at least one embodiment, by which the technical spirit of the present invention and its core configuration and operation is not limited.

The terms used in the present invention were selected as widely used general terms as possible in consideration of the functions in the present invention, but may vary according to the intention or custom of the person skilled in the art or the emergence of new technologies. In addition, in certain cases, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the corresponding description of the invention. Therefore, it is intended that the terms used in the present invention should be defined based on the meanings of the terms and the general contents of the present invention rather than the names of the simple terms.

According to a first embodiment of the present invention, a broadcast receiver includes one or more Universal Serial Bus (USB) ports, and stores and reproduces a broadcast signal received by the broadcast receiver in an external storage medium connected to the USB port. It is to make it possible. Various external devices, for example, a computer, a printer, a mobile phone, etc. may be connected to the USB port of the broadcast receiver according to the present invention. However, since the present invention relates to recording / reproducing of a broadcast signal, an embodiment will be described in which a storage medium is connected to a USB port of a broadcast receiver by wire / wireless.

According to a second embodiment of the present invention, a broadcast receiver includes at least one Ethernet port, and stores and reproduces a broadcast signal received by the broadcast receiver in an external storage medium connected to the Ethernet port.

The broadcast receiver is a device capable of receiving and processing broadcast signals transmitted by any one of terrestrial waves, satellites, and cables and displaying them on a screen. In addition, if the broadcast receiver is an IPTV, the broadcast receiver may receive and process a broadcast signal through an internet network and display the same on a screen. The broadcast receiver of the present invention can apply anything that can receive a broadcast signal.

The storage medium may be an optical recording medium capable of recording or reading data using light, a magnetic recording medium capable of recording or reading data using magnetic components, and a data recording or reading data using a semiconductor chip. It may be a nonvolatile memory. Each of the above-described storage media also includes various types of media. The optical recording media include DVD R / W and CD R / W, and the magnetic recording media include magnetic tape and HDD. In addition, non-volatile memory includes a CF card (Compact Flash card), smart card, portable memory stick, multimedia card, SD card (Secure Digital Card), USB memory. In addition, the storage media are only exemplary embodiments for better understanding of the present invention. If the storage media are capable of recording or reading a broadcast signal in a broadcast receiver, the storage media may be the storage media according to the present invention. It is not limited.

In addition, the storage medium may consider not only the simple storage medium described above, but also a display type storage medium capable of providing audio and video to a user by decoding a broadcast signal such as a PMP, a PDA, a mobile phone, a smart phone, and the like. It does not limit the scope of the invention.

In addition, the storage medium may be an internal storage medium in the broadcast receiver or an external storage medium. In addition, the storage medium may be a storage medium connected to the outside of the broadcast receiver by wire / wireless or may be a storage medium connected to an information communication device capable of data communication.

The present invention will be described as an embodiment in which the storage medium connected to the outside of the broadcast receiver by wire / wireless is an HDD.

According to an embodiment of the present invention, the broadcast signal storage to the storage medium is performed through any one of instant recording, scheduled recording, and time shift. The time shift may also be referred to as a time machine. That is, in the present invention, when the DVR (Digital Video Recorder) mode is activated and the time shift mode is set, the time shift function is performed. The time shift operation may be executed automatically or may be executed by a user's selection. The time shift operation will be described later in detail.

First Example

FIG. 1 is a block diagram illustrating a recording / reproducing apparatus according to a first embodiment of the present invention, and shows an example for storing and reading a broadcast signal in a storage medium connected to the outside of a broadcast receiver through a USB port.

A first embodiment of the present invention includes a device interface unit in a broadcast receiver, the device interface unit having one or more Universal Serial Bus (USB) ports, and storing broadcast signals in an external storage medium connected to the USB port. And play it back.

According to a first embodiment of the present invention, when an external storage medium is connected to a device interface of a broadcast receiver by wire / wireless, the DVR mode of the broadcast receiver can be activated to perform a time shift function, and the external storage medium is connected. If not, or the connection of the external storage media is cut off, DVR mode is disabled so that only basic TV functions can be performed. By doing so, it is possible to perform a DVR function at a low cost in a broadcast receiver without a built-in storage medium.

Referring to FIG. 1, the recording / reproducing apparatus includes a broadcast receiver 100 and an external storage unit 150.

The broadcast receiver 100 includes a receiver 101, a demodulator 102, a demultiplexer 103, a decoder 104, a display 105, a controller 106, a storage / playback controller 107, The device interface unit 108, the user interface unit 109, the format converter 110, and the remote signal receiver 111 may be included. The device interface unit 108 includes one or more USB ports.

The external storage unit 150 includes a storage medium, and the storage medium is connected to the device interface unit 108 by wire / wireless.

The storage medium 151 of the external storage unit 150 is connected to the USB port of the device interface unit 108 by wire, and the storage medium 152 is wirelessly connected to the USB port of the device interface unit 108. The connection example is shown.

That is, the physical connection of the USB is a cable USB connection and a wireless USB connection.

The wired USB connection connects the USB port of the device interface unit 108 of the broadcast receiver 100 with the storage medium 151 of the external storage unit 150 using a USB cable. In the broadcast receiver of the present invention, if one side of the USB cable is connected to the USB port of the device interface unit 108 of the broadcast receiver, and the other side of the USB cable is connected to the storage medium 151 of the external storage unit 150, In one embodiment, activating the DVR mode. In this case, the DVR mode may be automatically activated or may be activated by a user's selection. When the DVR mode is activated, a function related to the DVR may be performed, for example, a time shift function. If DVR mode is disabled, DVR related functions will not be performed. For example, if the DVR mode is deactivated, the corresponding function is not performed even if the DVR related execution menu items are selected, and the corresponding function is not performed even if a DVR related command is input through an input device such as a remote controller.

The wireless USB connection connects the USB port of the device interface unit 108 of the broadcast receiver 100 to the storage medium 152 of the external storage unit 150 using a USB dongle 153. The USB dongle 153 is a device that can perform a wireless function in a product without a wireless function, the present invention uses a wireless LAN USB dongle according to an embodiment. In the broadcast receiver of the present invention, if the USB dongle 153 is connected to the device interface unit 108 of the broadcast receiver, and the pair of the USB dongle 153 is the storage medium 152 of the external storage unit 150. In one embodiment, the DVR mode is activated. Similarly, DVR mode can be activated automatically or by user selection.

At this time, the storage medium 152 paired with the USB dongle 153 inserted into the USB port of the device interface unit 108 includes a wireless transmitting / receiving unit for wirelessly transmitting or receiving a broadcast signal. The wireless donor / receiver provided in each of the storage medium 152 paired with the USB dongle 153 inserted into the USB port of the device interface unit 108 may transmit or receive a broadcast signal using an Ethernet method. In this case, the USB dongle 153 may use a wireless LAN USB dongle.

That is, in the broadcast receiver 100 of FIG. 1, the receiver 101 may include one or more tuners, and may receive content from at least one of terrestrial waves, satellites, and cables through the tuner. The tuner may be provided for each broadcast source, for example, terrestrial wave, cable, and satellite, or may be an integrated tuner. In addition, when the tuner is a terrestrial broadcast tuner, at least one digital tuner and an analog tuner may be provided, respectively, or may be a digital / analog tuner. In the case of the terrestrial wave, the tuner tunes the terrestrial broadcast content transmitted through an antenna, that is, a broadcast signal of a channel selected by a user among the broadcast signals, and outputs it to the demodulator 102.

The receiver 301 may receive content through an internet network. In addition, the receiver 301 may include one or more external input / output terminals, and may receive content from an external device through the external input / output terminal. The external input / output terminal may be, for example, an AV terminal, a component terminal, an RGB terminal, a digital visual interface (DVI) terminal, a high-definition multimedia interface (HDMI) I terminal, or the like. A VCR, an analog TV, or the like may be connected to the AV terminal, and an external device such as a DVD player, a digital TV, a satellite set-top box, a cable set-top box, a PC, and the like may be connected to a component terminal, an RGB terminal, and an HDMI terminal.

The format converter 110 outputs high-definition content input from an external device to the demultiplexer 103 or down-converts it to the storage / playback controller 107. That is, when the display is selected, the resolution of the external high definition content is output to the demultiplexer 103 without downconverting the resolution, and when the recording is selected, the down conversion of the resolution of the external high definition content is output to the storage / playback control unit 107. do. There may be a variety of methods for down-converting high definition content in the format converter 110. In addition, the resolution of the down-converted content may vary according to the down-conversion method. In the present invention, down-conversion is performed in the CCIR656 format of 480i (i is interlaced scanning). In addition, if the content input from an external device is in an analog form, the format converter 110 digitizes the output and outputs it to the demultiplexer 103 or to the storage / playback controller 107.

The broadcast signal demodulated by the demodulator 102 is in the form of a transport stream, and the demodulator 102 outputs it to the demultiplexer 103.

The demultiplexer 103 may divide the broadcast signal output from the complementation unit 102 into an audio stream and a video element stream, and output the divided audio signal to each decoder of the decoder 104. Here, when a plurality of programs are multiplexed on one channel, only a broadcast signal of a program selected by a user may be selected and divided into a video element stream and an audio element stream. If the demodulated broadcast signal includes a data stream or a system information stream, it is also separated from the demultiplexer 103 and delivered to the corresponding block. Since this part is not a feature of the present invention, a detailed description thereof will be omitted.

The decoder 104 includes an audio decoder and a video decoder, and decodes the broadcast signal output from the demultiplexer 103 or the broadcast signal reproduced through the storage / playback control unit 107 with each decoding algorithm. Output to display unit 105.

On the other hand, if the storage medium of the external storage unit 150 is connected through the device interface unit 108 of the broadcast receiver 100, the DVR mode is activated, and at least one of the instant recording or the time shift mode is set, the storage medium is stored. The playback controller 107 receives the demodulated signal from the demodulator 102.

The storage / playback control unit 107 may store a signal output from the demultiplexer 103 in a corresponding storage medium of the external storage unit 150 through the device interface unit 108. At this time, if the instant recording is stored in the semi-permanent storage area of the storage medium, if the time shift mode is stored in the time shift storage area of the storage medium.

In addition, the storage / playback control unit 107 may read and output the broadcast signal stored in the storage medium of the external storage unit 150 to the decoding unit 104 according to a playback request of the user. The broadcast signal stored in the storage medium is in the form of a transport stream compression-coded at the transmitting side. Therefore, the decoding unit 104 decodes the compressed and encoded transport stream by each decoding algorithm and outputs the decoded transport stream to the display unit 105.

The storage / playback control unit 107 may encrypt and output the broadcast signal output to the external storage unit 150. In this case, the storage / playback control unit 107 should be able to decrypt the broadcast signal that is encrypted and reproduced in the external storage unit 150. Here, the encryption / decryption operation may be made of any one of software, hardware, firmware, middleware, or a combination of at least two of them.

In this case, the operation of the control unit 106 and the storage / playback control unit 107 may be performed by any one of hardware, firmware, middleware, and software, or a combination of at least two of them. In addition, the control unit 106 may play a role of the storage / playback control unit 107, and in this case, the storage / playback control unit 107 may be omitted. In addition, the controller 106 and the storage / playback controller 107 may be implemented as one integrated module using hardware and firmware.

The user interface unit 109 displays information or commands and receives information or commands from the user. For example, the user interface unit 109 may display an on-screen display (OSD) under a control of the control unit 106 or the storage / playback control unit 107 for selecting whether to activate the DVR mode and a warning message for preventing copyright infringement. Processing may be displayed on the display unit 105. To this end, the user interface unit 109 may include an on screen display (OSD) processor.

The remote signal receiver 111 transmits and receives a control signal for controlling the remote controller 160 and the recording / reproducing apparatus 100. The controller 106 controls the recording / playback apparatus 100 based on the control signal received by the remote signal receiving unit 111. In addition, the control unit 106 calculates a control signal in order to request specific information or a command from the user, and outputs the calculated control signal to the remote signal receiving unit 111. Then, the remote signal receiver 111 transmits the control signal output from the controller 106 to the remote controller 160. The remote controller 160 may receive a signal transmitted from the remote signal receiver 111 and display a message regarding information or a command specific to the user based on the received control signal.

DVR mode activation

In the present invention, when the connection of the external storage medium is detected through the device interface unit 108, the DVR mode can be activated. At this time, activation of the DVR mode may be automatically executed or may be executed by a user's selection.

In one embodiment, when the USB cable connected to the storage medium is connected to the USB port of the device interface unit 108 of the broadcast receiver 100, the storage / playback control unit 107 determines that the wired USB connection and activate the DVR mode. Let's do it. That is, the storage / playback control unit 107 determines the USB port connection signal of the device interface unit 108 of the broadcast receiver 100 as the recording / playback mode activation signal and activates the DVR mode. In this case, the storage / playback control unit 107 automatically activates the DVR mode or displays a message on the screen to select whether to activate the DVR mode so that the user can select whether to activate the DVR mode.

Here, the storage / playback control unit 107 may output a message or window including a warning phrase for preventing copyright infringement before activating the DVR mode. That is, the storage / playback control unit 107 may control the user interface unit 109 to output a warning message for preventing copyright infringement when the recording / playback mode activation signal is detected. The storage / playback control unit 107 may determine whether to activate the recording / playback mode based on the user compliance information received from the user interface unit 109. If the user compliance information is compliance approval information, the storage / playback control unit 107 may determine that the recording / playback mode is activated, and activate the recording / playback mode. However, when the user compliance information is non-compliance information, the storage / playback control unit 107 may determine that the recording / playback mode is inactivated and thus deactivate the recording / playback mode.

Compliance acknowledgment information is information indicating that the user agrees to the contents of the phrase contained in the copyright warning message, and non-compliance information indicates that the user does not agree to the content of the phrase included in the copyright warning message. Information. For example, the message or window may include a button for selecting "Yes", "No", etc. to input the user compliance information together with the warning phrase. Accordingly, the broadcast receiver according to the present invention, as provided in Article 27 of the Copyright Act, 'Reproduction for Private Use', allows copying 'when used individually or within a limited range of assumptions and similar', If the user does not intend to use the recorded recording for profit, that is, the DVR function is provided so that viewers can record and use it within the range that the family, etc., can watch together. In addition, it is possible to prevent and prevent infringing copyrights on broadcast contents, such as when it is used for profit.

In another embodiment, when the USB dongle 153 paired with the storage medium 152 is connected to the USB port of the device interface unit 108 of the broadcast receiver 100, the storage / playback control unit 107 is a wireless USB. Determine the connection and activate the DVR mode. In this case, the storage / playback control unit 107 determines the USB port connection signal of the device interface unit 108 of the broadcast receiver 100 as the recording / playback mode activation signal and activates the DVR mode. Likewise, if the wireless USB connection is confirmed, the DVR mode is automatically activated or a message for selecting whether to activate the DVR mode is displayed on the screen so that the user can select whether to activate the DVR mode.

Here, the storage / playback control unit 107 may output a message or window including a warning phrase for preventing copyright infringement before activating the DVR mode. In this case, the message or window may include a button that allows the user to select “Yes” or “No” as an input of whether the user agrees to the warning text together with the warning text.

According to an embodiment of the present invention, a message for selecting whether to activate the DVR mode and a warning message for preventing copyright infringement are displayed on the display unit 105 by OSD processing in the user interface unit 109.

The activation of the DVR mode means that a function related to the DVR may be performed, for example, a time shift function. Therefore, if DVR mode is disabled, DVR related functions are not performed. For example, if the DVR mode is deactivated, the corresponding function is not performed even if the DVR related execution menu items are selected, and the corresponding function is not performed even if a DVR related command is input through an input device such as a remote controller.

2 is a flowchart illustrating an example of DVR mode operation when the broadcast receiver is powered on. That is, when the broadcast receiver is powered on and the broadcast receiver is booted (S200), the storage / playback control unit 107 parses the interface connection information (S201). If the USB connection is detected as a result of the parsing (S202), a copyright-related warning message is displayed in the OSD form so that the user can check the copyright-related notices in using the recording (S203). Then, the user compliance information input from the user is received, and it is determined whether the recording / playback mode is activated based on the received user compliance information (S204). In this case, when the user compliance information is the compliance recognition information, it may be determined that the recording / playback mode is activated, and when the user compliance information is the non-compliance information, it may be determined that the recording / playback mode is deactivated.

3 illustrates an embodiment of a copyright warning message. In other words, "Would you like to use this recording for personal use only?" And display a message 300 including the phrase 310. At this time, if the user selects "YES" 320 using the remote controller 160 or the like, it is determined that the user agrees to the phrase 310, and the flow proceeds to step S205 to activate the DVR mode. That is, when the user selects "YES" 320 using the remote controller 160 or the like, the compliance acknowledgment information is input as the user compliance information, and it is determined in step S204 that the recording / playback mode is activated.

If the user selects 'No' 330 in Fig. 3, it is determined that the user does not agree with the phrase 310, and the flow proceeds to step S207 to continue deactivating the DVR mode. If " No " 320 is selected using the "

Here, when the DVR (Digital Video Recorder) mode is activated, it means that the currently received broadcast signal can be stored in a storage medium of the external storage unit 150 and can provide functions necessary for reproducing the broadcast signal stored in the storage medium. . For example, when the DVR mode is activated, the DVR menu item on the main menu of the broadcast receiver may be made transparent or highlighted to allow the user to recognize that the DVR mode is activated. On the contrary, if the DVR mode is deactivated, the DVR menu item may be opaque or not displayed on the menu screen, thereby allowing the user to recognize that the DVR mode is deactivated.

When the DVR mode is activated in step S205, a function related to the DVR is operated (S205).

For example, when the time shift mode is set, the broadcast signal demodulated by the demodulator 102 is stored in the storage medium of the external storage unit 150 through the storage / playback control unit 107 and the device interface unit 108. . In this case, in order to prevent a broadcast signal stored in the storage medium from being illegally copied or executed in a playback device other than the broadcast receiver, in particular, a non-authentication playback device, the storage / playback control unit 107 is demodulated and input. The broadcast signal may be encrypted and output to the device interface unit 108. Here, the playback device may be any device capable of reproducing a broadcast signal stored in a storage medium without being encrypted, such as another broadcast receiver, a PC, a mobile phone, or the like.

If the encrypted broadcast signal stored in the storage medium is to be reproduced in another reproduction device, a program capable of decrypting the encrypted broadcast signal in the corresponding reproduction device may be downloaded and reproduced through an authentication process.

Here, the encryption / decryption method may use a known technique, and detailed description of the operation of the encryption / decryption will be omitted. The encryption / decryption includes the meaning of scramble / descramble.

Meanwhile, the storage / playback control unit 107 may automatically detect the disconnection of the USB connection while the DVR mode is activated to perform the DVR function (S207). If it is confirmed in step S206 that the USB connection, proceed to step S204 to continue to activate the DVR mode, if it is detected that the USB connection is blocked (S208).

For example, in the case of a wired USB connection, when the USB cable connected to the USB port of the device interface unit 108 is removed, it may be determined that the USB connection is blocked. In the case of a wireless USB connection, when the USB dongle 153 connected to the USB port of the device interface unit 108 is removed, it may be determined that the USB connection is blocked. If the DVR mode is deactivated in step S208, the DVR menu items on the main menu are also deactivated. Therefore, the sub menus related to the DVR are not displayed or the corresponding function is not executed even if they are displayed. In addition, even if the DVR-related keys included in the input device, for example, the remote control, are input, the corresponding function is not executed.

4 is a flowchart illustrating an embodiment of a DVR mode operation when a broadcast receiver receives and displays a broadcast signal. That is, when the broadcast signal of the viewing channel selected by the user is displayed on the screen without the USB connection (S400), when the USB connection is confirmed (S401), it is checked whether the DVR mode is set to on (S402). . If it is confirmed in step S403 that the DVR mode is set to on, the copyright warning message is displayed in OSD form so that the user can check the copyright precautions in using the recording (S405). In other words, as shown in Figure 3 "Would you like to use this recording only for personal use?" And display a message 300 including the phrase 310.

Then, the user compliance information input from the user is received, and it is determined whether the recording / playback mode is activated based on the received user compliance information (S406). In this case, when the user compliance information is the compliance recognition information, it may be determined that the recording / playback mode is activated, and when the user compliance information is the non-compliance information, it may be determined that the recording / playback mode is deactivated. That is, when the user selects "YES" 320 using the remote controller 160 or the like, it is determined that the user agrees to the phrase 310 (S407), activates the DVR mode, and operates a DVR related function. (S407). For example, when the DVR mode is activated, the DVR menu item on the main menu of the broadcast receiver may be made transparent or highlighted to allow the user to recognize that the DVR mode is activated. On the contrary, if the DVR mode is deactivated, the user can recognize that the DVR mode is deactivated by making the DVR menu item opaque or not visible on the menu screen.

The operation example of the DVR function may apply the example of FIG. 2 described above. For example, when the automatic time shift mode is set, the broadcast signal demodulated by the demodulator 102 is stored in the storage medium of the external storage unit 150 through the storage / playback control unit 107 and the device interface unit 108. do. In this case, in order to prevent a broadcast signal stored in the storage medium from being illegally copied or executed in a playback device other than the broadcast receiver, in particular, a non-authentication playback device, the storage / playback control unit 107 is demodulated and input. The broadcast signal may be encrypted and output to the device interface unit 108. If the encrypted broadcast signal stored in the storage medium is to be reproduced in another reproduction device, a program capable of decrypting the encrypted broadcast signal in the corresponding reproduction device may be downloaded and reproduced through an authentication process.

If the user selects 'No' 330 in FIG. 3, it is determined that the user does not agree with the phrase 310, and the flow proceeds to step S410 to continuously deactivate the DVR mode.

If it is determined in step S402 that the DVR mode is set to off, a related message is displayed in OSD form so that the user can select whether to activate the DVR mode (S403). 5 is a diagram illustrating an embodiment of a message for selecting whether to activate a DVR mode. That is, the message 500, "Do you want to activate the DVR mode" is displayed, and if the user selects 'YES' 520 by using the remote controller 160 or the like, it is determined as the DVR mode activation selection (S404), Proceeding to step S405, the copyright warning message is displayed in the OSD form (S405). If it is determined in step 5 that no (530), it is determined that the DVR mode deactivation selection, and proceeds to step S410 to continue to deactivate the DVR mode.

The DVR on / off may be set in advance or selected when the USB connection is confirmed.

On the other hand, if the DVR mode is activated in step S407 and step S408 and the blocking of the USB connection is confirmed while the DVR function is performed (S409), the process proceeds to step S410 to deactivate the DVR mode. Similarly, in the case of a wired USB connection, when the USB cable connected to the USB port of the device interface unit 108 is removed, it may be determined that the USB connection is blocked. In the case of a wireless USB connection, when the USB dongle 153 connected to the USB port of the device interface unit 108 is removed, it may be determined that the USB connection is blocked.

6 is a flowchart illustrating another embodiment of DVR mode operation when a broadcast receiver receives and displays a broadcast signal. 6 is different from FIG. 4, when a USB connection is detected while watching a broadcast, the confirmation message shown in FIG. 5 is displayed so that the user can select whether to activate the DVR mode regardless of DVR mode on / off.

That is, FIG. 4 automatically activates the DVR mode when the DVR mode is on, and displays a confirmation message as shown in FIG. 5 so that the user can select whether to activate the DVR mode only when the DVR mode is off. Since the rest of FIG. 6 may be referred to FIG. 4, the detailed description of FIG. 6 will be omitted.

7A to 7E illustrate examples of DVR-related functions of FIGS. 3, 4 and 6 that can be performed when the DVR mode is activated.

That is, FIG. 7A shows an example of the main menu screen when the DVR mode is activated. That is, when the DVR mode is activated, the DVR menu items on the main menu are also transparently processed, and sub-menus related to the DVR that can operate when the DVR mode is activated are displayed as shown in FIG. 7A.

FIG. 7A illustrates an example in which a Timeshift Mode submenu, a Recorded Quality submenu, a Recorded TV submenu, a Scheduled List submenu, a Manual Recording submenu, and an HDD Format submenu are displayed.

In this case, the user may set the automatic / manual timeshift mode as shown in FIG. 7B through the timeshift mode submenu. If On is selected in the Timeshift Mode submenu, the automatic timeshift mode is selected. If Off is selected, the manual timeshift mode is selected. Accordingly, when the DVR mode is activated and the automatic time shift mode, the broadcast signal received and demodulated in real time is automatically stored in the storage medium of the external storage unit 150 through the storage / playback control unit 107 and the device interface unit 108. It is stored in the shift storage area.

If the DVR mode is activated and the manual time shift mode is not used, the time shift function is not performed or the user can select whether to execute the time shift function. For example, a message for allowing a user to select whether to execute a time shift may be OSD-processed by the user interface 109 and displayed on the display 105. According to an embodiment of the present invention, the automatic time shift mode is set as a default. This means that when the USB connection is confirmed, the broadcast signal is automatically stored in the external storage medium.

The user may set the reserved recording quality as shown in FIG. 7C through the Recorded Quality submenu. For example, when pre-recording an analog broadcast or an external input signal to a storage medium of the external storage unit 150, a reserve recording quality may be selected.

The user may view a recording list of broadcast signals recorded on the storage medium of the external storage unit 150 through the Recorded TV submenu. The user can view the scheduled recording list through the Scheduled List submenu. The user may set details during the scheduled recording through the manual recording submenu. For example, a scheduled broadcast, channel, date, start time, end time, and the like can be set. The user may format the storage medium of the external storage unit 150, for example, the HDD, through the HDD Format submenu. For example, even if 'Yes' is selected in the HDD Format submenu as shown in FIG. 7D, the execution of the format may be checked once again through the message 700 asking whether to execute as shown in FIG. 7E. In this case, when selecting 'Yes' 720, the storage medium connected to the USB port, for example, the HDD is formatted, and when selecting 'No' 730, the HDD is not formatted.

The DVR-related functions may be executed through menu items on the screen as shown in FIGS. 7A to 7E, or may be executed through DVR-related keys provided in the input device, for example, the remote controller 160. For example, if a recording key on the remote controller 160 is input while the DVR mode is activated, the received and demodulated broadcast signal is stored in the external storage unit through the storage / playback control unit 107 and the device interface unit 108. The semi-permanent storage area in the storage medium of 150).

The number, location, order, and operations of the sub-menus displayed when the DVR mode is activated are just one embodiment, and the present invention will not be limited to the above examples because they can be easily changed by those skilled in the art.

2nd Example

Meanwhile, the present invention may employ various interfaces as well as the USB interface of the first embodiment between the broadcast receiver and the storage medium of the external storage unit. Examples of various interfaces include Ethernet modules, Bluetooth modules, short-range wireless Internet modules, portable Internet modules, home PNA modules, IEEE1394 modules, PLC modules, home RF modules, and IrDA modules. However, the present invention is not limited thereto.

In the second embodiment of the present invention, an embodiment uses an Ethernet interface as an interface between a broadcast receiver and a storage medium of an external storage unit.

In addition, it may be assumed that the storage medium of the broadcast receiver and the external storage unit form one home network, and two situations may be considered.

The first case is a broadcast receiver acting as a server of a home network. In this case, the broadcast signal received by the broadcast receiver is transmitted to other home appliances (corresponding to an external storage unit of the present specification) through the home network, and the other home appliances are stored therein, so that other home appliances receive the broadcast received by the broadcast receiver. Will be available to the user. Therefore, of course, other home appliances should be equipped with at least an audio / video decoder.

The second case is when another home appliance (which also corresponds to an external storage unit in the present specification) serves as a server of a home network. In this case, the broadcast signal transmission path to other home appliances may be applied not only to the broadcast receiver but also to a third home appliance or a third broadcast signal provider. The broadcast signal transmitted to other home appliances is transmitted to the broadcast receiver through the home network, and the broadcast receiver can provide the transmitted broadcast signal to the user. Alternatively, the broadcast signal transmitted to other home appliances is transmitted to the broadcast receiver through wired / wireless Ethernet, and the broadcast receiver can provide the transmitted broadcast signal to the user. In this case, the broadcast receiver may perform a DVR function by using the tagger as a storage medium.

FIG. 8 is a block diagram illustrating a recording / reproducing apparatus according to a second embodiment of the present invention, in which a broadcast signal is transmitted / stored by an Ethernet method to a storage medium connected to the outside of a broadcast receiver by wire / wireless, and subsequently read out. Shows an example.

According to a second embodiment of the present invention, a broadcast receiver includes at least one of a wired LAN card and a wireless LAN card, and stores and reproduces a broadcast signal in an external storage medium connected to the LAN card by wire / wireless. The present invention may include an integrated wired / wireless LAN card, which may be provided inside or outside the broadcast receiver. In this case, the transmission / reception method of a broadcast signal is an embodiment of applying a wired / wireless Ethernet protocol.

That is, according to the second embodiment of the present invention, when an external storage unit having a storage medium is connected to a LAN card of a broadcast receiver via wired / wireless connection, the DVR mode of the broadcast receiver may be activated to perform a time shift function. If the storage unit is not connected or the external storage unit is disconnected, the DVR mode is disabled so that only basic TV functions can be performed. By doing so, it is possible to perform a DVR function at a low cost in a broadcast receiver without a built-in storage medium.

In the broadcast receiver 800 of FIG. 8, the receiver 101, the demodulator 102, the demultiplexer 103, the decoder 104, the display 105, the controller 105, and the storage / playback controller 107. The operation of the user interface 109, the format converter 110, and the remote signal receiver 111 may refer to the broadcast receiver of FIG. 1, and thus detailed description thereof will be omitted.

The Ethernet interface unit 820 in the broadcast receiver 800 of FIG. 8 is described with an embodiment that a LAN card for communicating in an Ethernet manner is mounted. The LAN card is at least one of a wired LAN card and a wireless LAN card, may be a wired / wireless integrated LAN card.

That is, when an external storage medium is connected to the Ethernet interface unit 820 by one of wired and wireless, and any one of immediate recording and time shift is selected, the broadcast signal demodulated by the demodulator 102 is stored in the storage / playback control unit. It is output to the Ethernet interface unit 820 through 107. If the scheduled recording is a scheduled recording time, the corresponding broadcast signal demodulated by the demodulator 102 is output to the Ethernet interface unit 820 through the storage / playback control unit 107. In this case, it is assumed that the DVR mode is activated. The DVR mode may be automatically activated or may be activated by a user's selection.

If the external storage medium 851 is connected by wire (ie, an Ethernet cable), the Ethernet interface unit 820 transmits the broadcast signal output from the storage / playback control unit 107 to the external storage unit 850 by wired Ethernet. Output to the storage medium 851).

In addition, if the external storage medium 852 is wirelessly connected, the Ethernet interface unit 820 stores the broadcast signal output from the storage / playback control unit 107 in a wireless Ethernet manner in the storage medium 852 of the external storage unit 850. Print it out and save it. To this end, the Ethernet interface unit 820 includes a wireless transmission / reception unit.

In this case, a wireless transmitter / receiver 853 including a wireless LAN card is configured to transmit or receive a broadcast signal to the storage medium 852 of the external storage unit 850 that is paired with the wireless LAN card of the broadcast receiver 800 by an Ethernet method. do. The wireless transmission / reception unit 853 may be connected to a storage medium 852 such as an HDD and a flash memory. When the Ethernet MAC frame 853 of the external storage unit 850 is received, an Ethernet MAC frame parser (not shown) that parses only a broadcast signal in a data area and stores the broadcast signal in the storage medium 852. ) May be included.

The Ethernet interface unit 820 may include an Ethernet MAC frame generation unit (not shown) for converting a broadcast signal to be stored in a storage medium of the external storage unit 850 into an Ethernet MAC frame as shown in FIG. 9.

According to FIG. 9, the Ethernet MAC frame includes a 7/1 byte preamble / Start of Frame Byte (SFD) area, a 6 byte receiving side address area, a 6 byte sending side address area, and a 2 byte data field. And a length area of 45 bytes, a data area of 45 to 1500 bytes, and a checksum area of 4 bytes. Here, the 7-byte preamble area is used to synchronize synchronization between the transmitting side and the receiving side. In addition, a 1-byte SFD region represents the beginning of an Ethernet MAC frame. The length field of the two-byte data field indicates the length of the next data area. The 4-byte checksum area consists of 32-bit hash codes and is used for error checking of frames.

According to an embodiment of the present invention, when the demodulated unit 102 of the broadcast receiver 800 transmits the demodulated broadcast signal to the storage medium 852 of the external storage unit 850 through the Ethernet network, The address of the wireless LAN card of the broadcast receiver 800 is included in the transmitting side address area, the address of the wireless LAN card of the external storage unit 850 is included in the receiving side address area, and the broadcast signal to be transmitted is contained in the data area.

According to an embodiment of the present invention, when the Ethernet MAC frame as shown in FIG. 9 is received by the wireless transmit / receive unit 853 of the external storage unit 850, the Ethernet MAC frame parser of the wireless transmit / receive unit 853. ) Only the broadcast signal in the data area is parsed. The parsed broadcast signal is stored in the storage medium 852.

The parsed broadcast signal may assume the following two cases.

First, without performing a demultiplexing process in the broadcast receiver 800 that receives a broadcast signal from a broadcast station, the transport stream is inserted into the data area of the Ethernet MAC frame through the Ethernet MAC frame generator as it is and stored in an external storage unit 850. May be considered.

In this case, if the external storage unit 850 is a display-type storage medium such as a PMP, a demultiplexer, an audio decoder, and a video decoder in the external storage unit 850 may be used to provide audio and video to the user.

On the other hand, in the case of a simple storage medium such as a portable HDD, the broadcast signal is stored in a storage medium as it is, and connected to a device having a demultiplexing and audio / video decoder like other broadcast receivers, and uploads the broadcast signal to the user. And video.

Secondly, the broadcast receiver 800 receiving the broadcast signal from the broadcasting station performs a demultiplexing process to form audio streams among the audio packets, and the video packets form the video streams, and then each audio / video stream is an Ethernet MAC frame. Consider the case where the data is inserted into the data area and transmitted to the external storage 850.

In this case, the display-type storage medium and the simple storage medium should be divided into consideration. However, if the demultiplexing process by the demultiplexer is omitted in the above description, the description thereof will be omitted. It does not mean giving up.

In the second embodiment of the present invention, DVR-related function operations such as DVR mode activation / deactivation and time shift described in the first embodiment may be applied. For example, the storage / playback control unit 107 activates a DVR mode when the connection of the external storage unit 850 to the Ethernet interface unit 820 is activated, and the external storage unit through the Ethernet interface unit 820. The broadcast signal may be stored in the storage medium 850 in a wired / wireless manner, or the broadcast signal may be read from the storage medium of the external storage unit 850 and output to the decoding unit 104. In addition, the storage / playback control unit 107 may output a message or window including a warning phrase for preventing copyright infringement before activating the DVR mode. In addition, the message or the window may include a button and the like to allow the user to select “Yes” or “No” as an input of whether the user agrees to the warning message.

When the DVR mode is activated and the time shift mode, the storage / playback control unit 107 encrypts the broadcast signal which is demodulated and input to the time shift area in the storage medium of the external storage unit 850 through the Ethernet interface unit 820. Can be stored. The storage / playback control unit 107 deactivates the recording / playback mode in the DVR mode when the connection block of the external storage unit 850 is detected.

In addition, in the second embodiment of the present invention, the storage / storage signal is prevented from being illegally copied or executed in a reproduction device other than the broadcast receiver, in particular, a non-authenticated reproduction device. The reproduction control unit 107 may encrypt the broadcast signal to be recorded and output the same to the Ethernet interface unit 820. Here, the playback device may be any device capable of reproducing a broadcast signal stored in a storage medium without being encrypted, such as another broadcast receiver, a PC, a mobile phone, or the like. In this case, when the storage / playback control unit 107 is encrypted to play the broadcast signal stored in the storage medium of the external storage unit 850, it should be able to decrypt the broadcast signal to be played back. Here, the encryption / decryption operation may be made of any one of software, hardware, firmware, middleware, or a combination of at least two of them. If the reproduced broadcast signal stored in the storage medium is to be reproduced in another reproduction device, a program capable of decrypting the encrypted broadcast signal may be downloaded and reproduced through an authentication process in the corresponding reproduction device. Here, the encryption / decryption method may use a known technique, and detailed description of the operation of the encryption / decryption will be omitted. The encryption / decryption includes the meaning of scramble / descramble.

Record with EPG

Hereinafter, an embodiment of an EPG will be described and an embodiment of storing a broadcast signal in an internal storage medium or an external storage medium 151, 152, 851, 852 using an EPG will be described.

10 illustrates one embodiment of an output form of an EPG.

Referring to FIG. 10, an EPG includes two dimensions of a horizontal axis and a vertical axis, and channel information is included on one axis and time information is included on the other axis.

That is, a plurality of electronic program information is received, stored in a memory, and information indicating a schedule of a program over time is listed for a plurality of channels and output to the display unit.

In this case, the length of the cell in which the title of the program is located may be configured in proportion to time. That is, the start time information and the end time information of the program are collected and controlled to be displayed on the time axis in time. According to this embodiment, the length of each cell in which the program title is located varies depending on the program.

The input type display cell informs the user of various input types such as an A / V broadcast signal, an audio broadcast signal, a data broadcast signal, or a software update.

The channel list cell displays at least one of a channel name, a channel number, or a channel logo to represent information about a channel on which a program title is loaded. The channel may consist of one or more. In this case, as an example, seven channels may be simultaneously displayed on one display window through an OSD. In addition, if more than seven channels are received, scrolling may be used to show the next channel information.

The date cell represents the date when the program is received. At this time, the EPG may consist of a plurality of dates. In an embodiment, program information for 8 days may be output.

The program title cell indicates a title of a program received for a predetermined time for a predetermined channel. For example, title information of a program may be displayed.

The time list presents reference time information indicating the time at which the program is received. For example, the time list may be configured in units of seconds, minutes, and hours. In addition, the EPG displayed on one screen (on one OSD) can output program information for a predetermined time.

The current time cell is a cell indicating the current time and displays current date and time information.

The current time indicator is an indicator for displaying the current time on the time list. The program of the cell located in the time domain indicated by the current time indicator is currently outputable. The program of the cell located in the time list area after the current time indicator can be reserved viewing or reserved recording. At this time, in advance of the scheduled recording or viewing time, the user may be informed of the function setting or may be asked whether to execute the set function.

The input type selection menu may select various input types such as a TV broadcast signal, an AUDIO broadcast signal, a Data broadcast signal, or a software update. In this case, the TV broadcast signal may be displayed to distinguish satellite, cable, and terrestrial broadcast signals, respectively, or may be displayed as a TV broadcast signal regardless of the broadcast type. That is, when the user selects the TV broadcast signal as the input type, the EPG outputs program information received as the TV broadcast signal, and when the user selects the data broadcast signal as the input type, the EPG program information received as the data broadcast signal. Outputs

The mode selection menu may be selected to change the plurality of embodiment modes according to the EPG output form. That is, various exemplary modes such as a grid type, an 8-days type, a now and next type, and a single type may be converted to each other. For example, if an EPG is output in a grid type and a mode conversion to a single type EPG is selected in the mode selection menu, the EPG is output in a single type EPG format.

In addition, a visual indicator may be displayed simultaneously with the program title in the EPG output window or in a cell in which the program title is located, thereby visually indicating whether a predetermined function is set.

The visual icon representing the set function or the characteristics and characteristics of the program can be in any form, and can be distinguished from other icons to the extent that the user can recognize it. In other words, if the same form can be distinguished by color, it can be used as a different function setting icon, and can be implemented in a different form.

In this embodiment, the set function that can be displayed can be displayed by setting a function such as a reserved viewing icon (represented by a Reminder icon on the drawing), a reserved recording icon (represented by a Record icon on the drawing), and an icon during recording. There is a mark.

In addition, an input type icon that visually indicates an input type may be available, and a channel logo that visually identifies a channel may be displayed on a channel list.

11A shows a flowchart of a method for setting storage for a broadcast signal using a program guide.

A method of setting storage for a broadcast signal may include outputting a program guide for a broadcast signal, inputting a program selection signal to be recorded on the output program guide, and recording for the selected program. It includes.

When a program guide output for a broadcast signal is requested, the program guide is output on the screen.

In the step of inputting a program selection signal to be recorded on the program guide, a predetermined program title is selected by the user on the program guide. In this case, the selection signal may be input in various ways. For example, the case where the cursor is moved to the program title cell on the program guide to be highlighted may be recognized as selected, and the case where the function selection key for the predetermined program title is input may be recognized as selected. In addition, it may be recognized that the selection signal is input when the program title cell is highlighted on the touch screen.

The step of setting recording for the selected program is to set recording using information specifying the selected program. At this time, the information specifying the program is channel information and time information at which the program is received. The time information may be start time information and end time information or start time information and duration information.

Hereinafter, an embodiment of the method of setting the recording will be described with reference to FIG. 10A.

When the program guide is output (S800), the user selects a title of a program to be recorded on the program guide (S801). A recording command is input for the selected program (S802).

At this time, selecting the currently received broadcast corresponds to immediate recording, and selecting the broadcast received after the current time corresponds to reserved recording.

The input of the recording command may be implemented so that the recording command is automatically input when the program title is selected, or the recording command selection key may be output, and the recording command may be input when the recording command is selected. That is, the recording / playback mode activation signal may be a recording command input from the user.

When the recording command is input, the copyright warning message is displayed in the OSD form so that the user can check the copyright notice in using the recording (S803). For example, "Would you like to use this recording only for personal use?" And display a message 300 including the phrase 310. When the user selects "YES" 320 using the remote controller 160 or the like, it is determined that the user agrees to the phrase 310 (S804), and the operation proceeds to step S805 to determine whether recording is possible ( S805). If the user selects 'No' 330, it is determined that the user does not agree with the phrase 310, and the execution ends.

As a result of determining whether the recording is possible, if the recording is possible, the next step is performed. If the recording is not possible, a guide message is output (S806). For example, it is determined whether there is a preset recording program, that is, whether it is a duplicate recording setting, and a message indicating that recording is not possible in the case of a duplicate recording setting is output. Alternatively, the storage space of the internal storage medium or the external storage mediums 151, 152, 851, and 852 is determined, and a message indicating that recording cannot be performed when the storage space is insufficient is output. At this time, the storage space is determined in consideration of the quality and duration of the received broadcast signal. At this time, if the image quality is lowered and stored, for example, from the HD level to the SD level, when the storage is possible, a guide message indicating this is output. In this case, a signal for adjusting the image quality may be output to the user interface.

If the recording is possible, it is determined whether there is a program related to the selected program (S807).

The program associated with the selected program includes a series program of the same kind of continuous project, the same multi-program when the same program is received separately, and a recommendation program recommended to be viewed together with the selected program. In addition to these embodiments, the related program includes all programs related to the selected program.

As a result of determining whether the related program exists, if there is a related program, a related program recording option is provided (S808). That is, the related program recording option may output a user interface (UI) for selecting a recording of a program determined as the related program.

In the output user interface, a related program may be set as a recording target.

If there is no related program as a result of determining whether the related program exists, or after selecting whether to record the related program, information for specifying a program selected as a recording target is generated and stored (S809). The information specifying the program is channel information and time information at which the program is received. The time information may be start time information and end time information or start time information and duration information.

In this case, in addition to the information specifying the program, information about the program, for example, title information, genre information, rating information, plot information, and the like, may be stored together (S810).

When the recording setting is completed, it is displayed on the program guide whether recording is set (S811). In this case, whether or not to set the recording may be indicated by a visual indicator.

11B shows an example screen for setting recording on the program guide.

The broadcast signal of the program selected through the recording setting may be downloaded and stored in the external storage media 151, 152, 851, and 852, or may be stored in the internal storage media.

Storage Media Management

12 shows a diagram showing a storage capacity of a storage medium.

Referring to FIG. 12, the broadcast receiver according to the present invention may check a capacity of a space in which a broadcast signal is stored and inform the user of this. This may be assumed when the user requests the display of the storage capacity through the user interface (UI), but is not limited thereto.

According to a first embodiment of a method of displaying a storage capacity of an internal storage medium or an external storage medium 151, 152, 851, and 852, a region may be visually illustrated by dividing an area into a used space and a storage space in relation to a total storage space in a figure. . At this time, the figure may be a planar figure and a three-dimensional figure.

In a second embodiment of the method for displaying a storage capacity, the total storage space capacity, used storage space capacity, or storage capacity storage capacity may be expressed in units of capacity. In this case, the total storage space capacity, used storage space capacity or storage space capacity that can be used may be selectively indicated. That is, the storage capacity may be indicated by a combination that allows the user to know the capacity of the storage space that can be stored.

In a third embodiment of a method of displaying a storage capacity, the capacity of the entire storage space and the capacity of the storage space can be represented in units of time. In this case, the capacity of the entire storage space may be selectively indicated. Also, the recordable time may vary depending on the recording quality (quality). For example, it can be stored for 75 hours in the HD class, but can be stored for 100 hours in the SD class. By outputting each of them, the user can efficiently use the storage space by appropriately selecting the recording quality (image quality).

In a fourth embodiment of the method of displaying a storage capacity, the total storage space capacity, used storage space capacity, or storage capacity storage capacity may be expressed in percentage units. In this case, the capacity percentage list may be combined and selectively displayed to allow a user to know a storage space that can be stored.

FIG. 13 is a diagram illustrating a storage list list of recordings stored in a storage medium. FIG.

Referring to FIG. 13, a list of stored recordings may be output to one UI. This may also be assumed to be displayed at the request of the user through the user interface, but embodiments of the present invention are not limited thereto.

The storage list list may indicate a storage space where recordings are stored. For example, if there is an internal storage unit, for example, an internal HDD, and an external storage medium, for example, a portable HDD is connected through an external interface, the storage list list indicates in which storage space.

The storage list list may output the remaining storage capacity by comparing the total storage capacity of the recordings shown in the storage list list with the total storage capacity of the storage space.

The storage list list includes information on at least one recording. In this case, when the entire stored recordings cannot be output to one UI, the pages may be separated and output. In this case, page switching may be performed using a page switching key or a scroll bar.

The storage list list includes a record cell representing information about at least one recording. The information included in each recording cell will be described.

The recording cell contains information identifying the recording. The information for identifying the recording may be program title information, storage time domain information, image information, or the like. In addition, not limited to this embodiment, and includes all the information that can identify the object to be stored.

The recording cell may include an image information area. The output image information may be received information or information generated at the time of storage. The image information may be a still image, a moving image, or a slide show still image of the object to be stored. The image information may display a thumbnail image in which a specific frame of the video is smaller than the original size.

The recording cell may include recording time information. The recording time information indicates a time point for recording. The recording time may be indicated by at least one of a date or a time.

The recording cell may include recording capacity information. In this case, the recording capacity may be expressed in units of capacity, or may be expressed in recorded time.

The recording cell may include program detailed information. The program detailed information may be stored together with the received program information at the time of recording and output together in the recording cell. In this case, the program detailed information may be output to the same area as the recording cell, or may be output to another area. For example, highlighting one recording cell can cause the program details to be displayed in a pop-up window, or to turn off the display of the list of saved lists and to open the program details window in a separate area. You can also output

The recording cell may include the reproduction state information of the stored program. For example, a recording that has not been played back may be marked as 'new', a recording that has completed playback is 'complete', and a recording that has not completed playback may be marked as 'part'.

The storage list list may include a menu function key for inputting a command for playback, editing, and the like for the recording.

The menu function may include a first play function, a play function such as a previous play, a whole select function, a partial select function, an edit function such as a rename, a move, a copy, and a program detailed information output function.

14 illustrates an embodiment of a method for selecting a program to play on a storage list list.

Referring to FIG. 14, a program may be selected on a storage list list to select an option related to playback. The options related to playback can be output at the same time to the save list list and the option window or in a separate area. The output of the storage list list has been described with reference to FIG. 13.

The option window related to the playback may include information such as a title, a recording time, and the like for the program.

At least one program to be reproduced can be selected. That is, one program can be selected as a playback target, or a plurality of programs can be selected as playback targets. Depending on the number of objects to be selected, the output option window may vary.

When one program is selected as a playback target, an option function related to playback of the program can be executed. For example, options related to playback include first play, previous play, scheduled play, double play, repeat play, bookmark play, jump play, summary play, select all, move file, delete, and to external storage. Copy, edit information, etc. In this case, the option function may be located in the option window.

First playback refers to a function of playing back a recorded object for the first time, or starting from the beginning of the program when the previous playback is completed. Previous playback refers to a function of connecting and playing from the end when the playback ends in the past and the playback ends midway. The reserved play means a function of setting a time after the current time as a play time so that the stored program is automatically played when the set time arrives. Selecting all means selecting not only the selected program but also all recorded objects as targets for reproduction. Moving a file means moving a storage space when there are a plurality of storage spaces. In this case, a file may be moved from an external storage device to an internal storage device or from an internal storage device to an external storage device, and may include moving a file from the same physical storage device to another logical storage device. Deletion means deleting the selected program from the storage space. Information editing means changing the information of an object such as a title of a program and time information.

When a plurality of programs are selected for playback, an option function relating to playback between the plurality of programs can be executed. For example, optional functions related to playback between a plurality of programs include continuous playback, scheduled playback, deselection, moving a selected file, deleting a selected file, and copying to an external storage device.

Continuous playback is to play back all selected plural programs continuously. If this is selected, a plurality of programs can be played with one play command. The reserved reproduction means a function of setting a time after the current time as a reproduction time for a plurality of programs and automatically reproducing the stored program when the set time arrives. Deselection is to deselect a plurality of programs. Moving a selected file moves files of a plurality of selected programs to different locations at once. Deleting a selected file deletes a plurality of selected programs at once.

Regarding optional functions, functions that cannot be executed at present can be disabled, and functions which can be executed at present can be enabled.

Play recording

Hereinafter, a method of reproducing a broadcast signal stored in an internal storage medium or an external storage medium 151, 152, 851, 852 will be described in detail.

15 is a flowchart illustrating an embodiment of a method of reproducing a broadcast signal stored in a storage medium.

Referring to FIG. 15, the method may include storing a received program, selecting a playback of the stored program, and playing the selected program.

The description of the step of storing the program (S900) has been described above, and thus will be omitted. That is, recordings are stored in a predetermined area in the internal storage medium, the external storage medium 151, 152, 851, 852, or the external storage medium 151, 152, 851, 852.

In step S901 of setting a playback for a stored program, a program to be played is selected from at least one stored program and is set as a target of program playback. An embodiment of a method of selecting a stored program is a method of selecting on a stored list list.

As a method for setting a program to be played back, there are a scheduled playback method for playing back a program stored at a time after the current time, and an immediate playback method for playing back a program stored at the current time.

In the step S902 of reproducing the set program, the stored program is reproduced at the reserved time when the reproducing setting is set, and the stored program is immediately reproduced after the reproducing setting when the reproducing is set. An embodiment of a method of playing a stored program is a method of uploading and playing a program stored in an external mass storage device to a buffer. In this case, the corresponding recordings in the external storage media 151, 152, 851, and 852 are uploaded to the broadcast receivers 100 and 800 and reproduced.

After the program has been played back, if playback of the stored program is completed or if it is determined that an end command has been input (S904), playback ends.

16A-16C illustrate an embodiment of a method of storing a program and reproducing the stored program.

Referring to FIG. 16A, the demodulated broadcast signal is a mixture of audio packets A, video packets V, and data packets D, thereby forming one stream. Each packet has a sequence according to the order in which it is input.

Referring to FIG. 16B, a packet unnecessary for storage is removed from the stream of FIG. 16A, and the stream is downloaded from the storage unit. At this time, a time stamp according to the input order is stored together. For example, in the case of not storing the data packet in the stream of FIG. 16A, the data packet is removed, a time stamp in the input order is given to the remaining audio and video packets, and a time stamp is added together with the packet. Save it.

When recordings are stored in the internal storage media or the external storage media 151, 152, 851, and 852 as shown in FIG. 16C, when a broadcast signal is reproduced, a null (in place of a data packet which is a packet removed in FIG. null) Allocates packets to form a stream. This is because the demultiplexer recognizes packets according to the input order, and thus can recognize the stored stream (stream composed of AVVVAAV) as a stream composed of AVVVAD packets as shown in FIG. 16B. The stream configured as shown in FIG. 16C is uploaded from the external storage media 151, 152, 851, and 852 to the broadcast receivers 100 and 700 to be reproduced in the broadcast receivers 100 and 700.

17 is a block diagram of an embodiment of a system for digital copyright authentication of content received by a broadcast receiver according to the present invention.

The broadcast receiver according to the present invention may perform digital copyright authentication on the received content. As an example, the broadcast receiver according to the present disclosure may perform digital copyright authentication on content received based on the digital copyright authentication system 1700 of FIG. 17.

The digital rights authentication system 1700 includes a content provider workstation (1710), a digital rights management server (DRM: 1720), a content server (Contnet Server, 1730), and a broadcast receiver (1740). It is provided.

The broadcast receiver 1740 performs a digital copyright authentication procedure on the received broadcast content. That is, the broadcast receiver 1740 requests the digital rights management server 1720 for digital copyright authentication on the received broadcast content. The broadcast receiver 1740 may transmit authentication request information to the digital rights management server 1720 as a digital copyright authentication request.

The authentication request information includes at least one of a content identification value, a user ID, and a device identification value. The content identification value is a value for identifying the content requested by the user from other content, and is generated by the content provider workstation 1710 in the process of packaging the content. When the content provider workstation 1710 transmits content program information, the content provider workstation 1710 may transmit a content identification value, and the broadcast receiver 1740 may record or display the content using the content identification value included in the received content program information. Request digital copyright certification for broadcast content.

 The user ID may be input from the user when the broadcast receiver 1740 is initially set up, at boot time, or when the user requests content playback. The device identification value is a value for identifying the broadcast receiver 1740. The MAC address, serial number, flash memory number, etc. of the broadcast receiver 1740 may be used as the device identification value.

The broadcast receiver 1740 receives authentication confirmation information from the digital rights management server 1720. The authentication confirmation information includes at least one of a decryption key and a use right. The broadcast receiver 1740 decrypts the content downloaded from the content server 1730 with the decryption key.

The content provider workstation 1710 performs a content packaging process in order to apply a DRM to a service. The content information is registered in the digital rights management server 1720 through a content packaging process, and the content is encrypted. The content information may include a content identification value.

The content server 1720 receives the content package, which is the content packaged by the content provider workstation 1710, from the content provider workstation 1710 and publishes the content package for the broadcast receiver 1740 to download. When the broadcast receiver 1740 downloads the content through an appropriate digital copyright certification procedure, it is actually a file in the form of a content package.

The digital rights management server 1720 issues a license for the user to use the content package. When the broadcast receiver 1740 requests digital copyright authentication, the digital rights management server 1720 determines whether a license can be issued. Here, the broadcast receiver 1740 may transmit the authentication request information to the digital rights management server 1720 as a digital copyright authentication request. As described above, the authentication request information includes at least one of a content identification value, a user identification value, and a device identification value. The digital rights management server 1720 investigates whether the broadcast receiver 1740 and the user of the broadcast receiver 1740 can be issued a license for the content indicated by the content identification value based on the authentication request information.

If it is determined that the user of the broadcast receiver 1740 and the broadcast receiver 1740 can be issued a license for the content indicated by the content identification value, the digital rights management server 1720 generates authentication confirmation information to generate the broadcast receiver. (1740). As described above, the authentication confirmation information includes a decryption key and a usage right. Here, the use right is information indicating whether the right to copy, distribute, distribute, etc. the downloaded content.

Here, the broadcast receiver 1740 may selectively provide the copyright related warning message of FIG. 3 or the warning phrase included in the message based on the usage right information included in the authentication confirmation information. For example, when the copy right is not included in the use right information, the broadcast receiver 1740 sends a warning message that "the broadcast content cannot be recorded" and deactivates the DVR mode. In addition, if the usage rights information includes duplication restriction information that restricts duplication of the recording, the broadcast receiver 1740 provides a warning message containing the phrase "Do you not want to duplicate this recording again?" You can ask for your consent. In addition, when the usage right information includes free usage information meaning that it can be used freely without copyright restrictions, the broadcast receiver 1740 sends a warning message "This recording is freely available without copyright restrictions", Activate DVR mode immediately.

In another embodiment, the broadcast receiver 1740 may receive the usage right information from a broadcasting station or a headend through a Conditional Access (CA) system included in a cable card. Here too, the broadcast receiver 1740 may selectively provide the copyright related warning message of FIG. 3 or the warning phrase included in the message based on the usage right information.

Until now, in the present invention, the broadcast signal has been described as being stored and reproduced in a storage medium connected to the outside of the broadcast receiver as an embodiment, but in the present invention, not only the broadcast signal but also various video contents, various music files, and computers are generally Various video files that are commonly used can also be saved and played.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific preferred embodiments described above, and the present invention belongs to the present invention without departing from the gist of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such changes are within the scope of the claims.

1 is a block diagram of a recording / reproducing apparatus including a broadcast receiver according to a first embodiment of the present invention;

2 is a flowchart illustrating an example of DVR mode operation when the broadcast receiver is powered on.

3 is a view showing an embodiment of a warning message for preventing copyright infringement;

4 is a flowchart illustrating an embodiment of a DVR mode operation when a broadcast receiver receives and displays a broadcast signal.

5 is a diagram illustrating an embodiment of a message for selecting whether to activate a DVR mode;

6 is a flowchart illustrating another embodiment of DVR mode operation when a broadcast receiver receives and displays a broadcast signal.

7A to 7E illustrate examples of DVR functions of FIGS. 2, 4, and 6 that can be performed when the DVR mode is activated.

8 is a block diagram of a recording / playback apparatus including a broadcast receiver according to a second embodiment of the present invention;

9 illustrates one embodiment of an Ethernet MAC frame;

10 illustrates an embodiment of an output form of an EPG;

11A is a flowchart of a method for setting storage for a broadcast signal using a program guide;

 11B is an example screen for setting recording on a program guide;

12 shows a storage capacity of a storage medium;

13 is a view showing a list of storage lists of recordings stored in a storage medium;

14 illustrates an embodiment of a method of selecting a program to be played on a storage list list;

15 is a flowchart of an embodiment of a method of reproducing a broadcast signal stored in a storage medium;

16A to 16C illustrate an embodiment of a method of storing a program and reproducing the stored program.

17 is a block diagram of an embodiment of a system for digital copyright authentication of content received by a broadcast receiver according to the present invention.

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

101: receiver 102: demodulator

103: demultiplexer 104: decoding unit

105: display unit 106: control unit

107: storage / playback control unit 108: device interface unit

109: user interface unit 110: format converter

111: remote signal receiver 160: remote control

150,850: external storage unit 151,152,851,852: storage medium

153: USB dongle 820: Ethernet interface unit

853: Wireless Transceiver

Claims (12)

Detecting generation of a record / playback mode activation signal; Outputting a message for preventing copyright infringement when the recording / playback mode activation signal is detected; And And receiving user compliance information input from a user, and determining whether to activate a recording / playback mode based on the received user compliance information. The method of claim 1, And the recording / playback mode activation signal is input from a user. The method of claim 1, And the recording / playback mode activation signal is a USB connection signal of an external storage medium. The method of claim 1, In determining whether to activate the recording / playback mode, And if the user compliance information is compliance recognition information, determining that the recording / playback mode is activated. The method of claim 1, In determining whether to activate the recording / playback mode, And if the user compliance information is non-compliance information, determining that the recording / playback mode is inactivated. The method of claim 1, In the step of outputting the message, And selectively outputting the message according to usage right information indicating the user's authority to use the recording. A user interface unit displaying information or commands and receiving information or commands from a user; And Detects the recording / playback mode activation signal, and if the recording / playback mode activation signal is detected, controls the user interface to output a message for preventing copyright infringement, and user compliance information received from the user interface And a storage / playback control unit for determining whether to activate the recording / playback mode on the basis of the recording / reproducing mode. The method of claim 7, wherein And the recording / playback mode activation signal is input from a user. The method of claim 7, wherein And the recording / playback mode activation signal is a USB connection signal of an external storage medium. The method of claim 7, wherein The storage / playback control unit, And when the user compliance information is compliance recognition information, determining that the recording / playback mode is activated. The method of claim 7, wherein The storage / playback control unit, And if the user compliance information is non-compliance information, determine that the recording / playback mode is inactivated. The method of claim 7, wherein The storage / playback control unit, And a recording / playback apparatus for selectively outputting the message according to the usage right information indicating the user's right to use the recording.

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