KR100970634B1 - Digital satellite broadcasting receiver and Method for reservation seeing and hearing and recording of digital satellite broadcasting receiver - Google Patents

Abstract

The present invention relates to a reservation viewing / recording method in a digital satellite broadcasting receiver composed of a plurality of sub-units installed in a plurality of spaces independent of one main unit, and in particular, to tune multiple channels simultaneously through one main unit, Each sub unit in a plurality of independent spaces receives a program of a specific channel tuned from the main unit to perform decoding and display, wherein one sub unit can set reservation viewing / recording of sub units including itself. The sub unit or the main unit can control reservation viewing / recording of each subunit according to the reservation viewing / recording setting value of each subunit. In particular, by setting reservation viewing / recording of all subunits including itself in one subunit and transmitting it to the corresponding subunit through the main unit, reservation viewing / recording setting of each subunit is easy.

Multi, main, subunit, reservation watching, reservation recording

Description

{Digital satellite broadcasting receiver and method for reservation seeing and hearing and recording of digital satellite broadcasting receiver}

1 is a conceptual block diagram of a digital satellite broadcast receiver according to the present invention;

Figure 2 is a detailed block diagram of the main unit of Figure 1

3A and 3B illustrate an example of a reservation viewing / recording setting menu screen according to the present invention.

4 is a flowchart illustrating a reservation viewing / recording setting process according to the present invention.

5 is a flowchart illustrating an example of communication with a main unit, a sub unit B, and a user in the reservation viewing / recording control method according to the present invention.

6 is an operation flowchart of each sub unit in the reservation viewing / recording control method according to the present invention;

Explanation of symbols for main parts of the drawings

101: satellite antenna 102: LNB

103: multi-switching unit 110: main unit

111: multi-tuner section 112: multi-channel TP distribution section

113: CPU 114: modem                 

115: EPG DB 116: main transceiver

120: subunit

The present invention relates to a digital satellite broadcasting receiver for simultaneously tuning a multi-channel through one main unit and to simultaneously view different channels tuned in the main unit in each subunit installed in a plurality of independent spaces. In particular, the present invention relates to a reserved viewing / recording method for pre-scheduling watching or recording of a specific channel or program in such a digital satellite broadcasting receiver.

In general, digital satellite broadcasting has spread rapidly to Europe, Japan, Asia, and Africa since the world's first DirecTV in 1994, and can be viewed anywhere in the world. Digital satellite broadcasting is a method of compressing video / audio / additional data and transmitting digitally through satellites in MPEG 2 standard, and is related to a wide coverage area and region which are inherent to satellites compared to other transmission media. Due to the lack of equal broadcasting quality, economics of establishing a satellite broadcasting network, and simplicity of satellite channels, it is mainly led by pay broadcasting companies.

In addition, the receiver capable of receiving the digital satellite broadcast employs a CAS (Conditional Access System) that restricts the reception so that only subscribers can receive the pay broadcast.                         

The CAS receives a TV program and a data service signal scrambled by a transmitting station in a receiver for pay per channel (PPC) or pay per view (PPV) other than the free and basic channel of satellite broadcasting. It is a system for managing authorized subscribers to receive service by descrambling using a smart card. Here, the PPC is a service that collects a predetermined fee for receiving a channel and is able to receive a broadcast, and the PPV is a service that calculates and charges a fee per program as a reception time. To this end, the CAS operator issues a smart card to the subscriber. The smart card is also referred to as a CAM (Conditional Access Module).

The smart card stores, for example, channel information that a user can view in the memory portion in the case of a pay channel, and usage information in the case of a PPV.

The PPV service allows a user to purchase a movie or sporting event in advance, for example. That is, the user may purchase a paid viewing program through the smart card.

Therefore, it is possible to extract the information stored in the smart card at the request of the limited reception system operator or the receiver. Also, the smart card has a decryption function that can descramble the scrambled signal. Provide the required key.

The digital satellite broadcast includes not only a program but also program guide information. The program guide information is called APG (Advanced Program Guide) in digital satellite broadcasting such as DirecTV, and EPG (Electronic Program Guide) in digital terrestrial broadcasting. The program guide information is additional data information that allows the viewer to more conveniently use the TV to watch TV, and the viewer can obtain information about the current broadcast program and the future broadcast program directly on the screen without a newspaper or other guide medium. .

On the other hand, as people's income levels rise and their lives get better, nowadays, it is common to have more than one television in a household. In other words, televisions are provided in living rooms, parents' rooms, and children's rooms.

However, in the related art, in order to receive a digital satellite broadcast from a plurality of televisions in a home, a satellite broadcast receiver must be installed for each TV and a smart card is issued, thereby increasing the user burden including a subscription fee. That is, one smart card is issued to one satellite broadcast receiver to limit illegal viewing of non-subscribers.

In addition, when a user purchases a pay-per-view program, for example, a movie or a sporting event using two-way communication, a modem is required. In the conventional case, since a modem must be installed in each receiver, there is a problem of increasing a user's cost burden.

Therefore, in order to solve this problem, the present applicant does not have a display device but is equipped with a modem, and installs a main unit capable of simultaneously tuning multi-channels at a specific location in a home, and each installed display device in a plurality of independent spaces. A sub-unit having a digital satellite broadcasting receiver (application number: 2003-38808, application date: 2003.06.16; hereinafter referred to as '38808') for receiving a specific channel tuned from the main unit and performing decoding and display. ) Has been filed.

An object of the present invention is to reserve and watch a digital satellite broadcast receiver such that one sub unit can set and control reserved viewing or reserved recording of sub units including itself in a digital satellite broadcasting receiver such as '38808'. In providing a recording method.

Another object of the present invention is to set up reserved viewing or reserved recording of sub-units including one subunit in a digital satellite broadcasting receiver such as '38808' described above, and reserved viewing or reserved recording of each sub-unit in the main unit. To provide a reservation viewing / recording method of the digital satellite broadcasting receiver to control the.

The reservation viewing / recording method of the digital satellite broadcasting receiver according to the present invention for achieving the above object does not include a display device and a CAS unit but includes a modem and simultaneously tunes a plurality of received channels and It is equipped with a main unit for demodulating and outputting the programs, respectively, and a CAS unit installed in a separate space together with a display device and authenticating a user through a smart card. The program of a specific channel is received from the main unit, decoded, and displayed. In the digital satellite broadcasting receiver comprising a plurality of sub-units for transmitting the channel selection or purchase information input by the to the main unit,

(a) in one subunit, a user setting reservation viewing or reservation recording of each subunit including the subunit through a menu screen;

(b) transmitting reservation viewing / recording setting information of each sub-unit set in step (a) to the main unit;

(c) when the reservation viewing / recording setting information of each subunit is transmitted in step (b), the main unit transmitting the reservation viewing / recording setting information to the corresponding subunit;

(d) periodically transmitting current time information to each sub unit in the main unit;

(e) comparing, at each sub unit, current time information transmitted through the main unit with its reserved viewing / recording setting information to determine whether a preset reserved viewing / recording time has been reached;

(f) If it is determined as the reserved viewing / recording start time preset in step (e) and the currently displayed channel is not the reserved channel, the corresponding subunit requests the reserved channel from the main unit, and then tuning and demodulating from the main unit. Receiving a reserved channel for transmission; And

and (g) decoding the program of the channel received from the main unit and displaying it on the display device if the sub-unit is set to reserved viewing, and recording to the storage device if it is set to reserved recording. .

In the step (a), when the user selects the reserved viewing / recording menu item for setting the reserved viewing / recording of each sub-unit of the menu screen, only the user who has received the password from the user and inputs the correct password is viewing the reserved / Allowing access to the recording menu item.

In step (a), if a reserved viewing / recording menu item for setting reserved viewing / recording of each subunit is accessed by the user, the identifier of each subunit and the selected subunit are displayed on the reserved viewing / recording setting screen. Displaying items for setting values required for reservation viewing / recording of the user; selecting a subunit identifier for reservation viewing / recording on the reservation viewing / recording setting screen; The step of setting the values required for reserved viewing or recording on the reserved viewing / recording setting screen is repeatedly performed for each subunit, thereby setting reserved viewing / recording for each subunit.

In step (a), if a reserved viewing / recording menu item for setting reserved viewing / recording of each subunit is accessed by the user, the identifier of each subunit and the selected subunit are displayed on the reserved viewing / recording setting screen. Displaying items capable of setting values required for reservation viewing / recording at the same time; selecting at least a plurality of subunit identifiers for which the same reservation viewing / recording is desired on the reservation viewing / recording setting screen at once; And setting values for reservation viewing or recording of the selected plurality of sub unit identifiers on the reservation viewing / recording screen.

In the step (a), if the reserved viewing / recording menu item for setting the reserved viewing / recording of each sub-unit of the menu screen is accessed by the user, each step including the 'all sub-units' item is displayed on the reserved viewing / recording setting screen. Displaying the items for setting the identifier of the sub unit and the values necessary for the reserved viewing / recording of the selected subunit, selecting the 'all sub units' item in the reserved viewing / recording setting screen, and then performing the reservation viewing or recording. And setting the necessary values to set the same reserved viewing / recording information in all sub-units connected to the main unit.

In the step (a), if the reserved viewing / recording menu item for setting the reserved viewing / recording of each sub-unit of the menu screen is accessed by the user, each of the items including the 'current subunit' item in the reserved viewing / recording setting screen is displayed. Displaying an item for setting an identifier of a sub unit and values for reservation viewing / recording of the selected subunit, selecting the 'current subunit' item on the reservation viewing / recording setting screen, and then selecting the current subunit And setting values necessary for reserved viewing or recording.

In the reserved viewing / recording method of the digital satellite broadcasting receiver according to the present invention, a display device and a CAS unit are not provided, but include a modem, and a main system for simultaneously tuning a plurality of received channels and demodulating and outputting programs of the tuned channels, respectively. The unit is provided with a display device in a separate space, and has a CAS unit for authenticating a user through a smart card. The program of a specific channel is received from the main unit, decoded for display, and the user inputs a channel selection or purchase. In the digital satellite broadcast receiver comprising a plurality of sub-units for transmitting information to the main unit,

(a) in one sub unit, a user setting reservation viewing or reservation recording of each sub unit including the sub unit through a menu screen;

(b) transmitting reservation viewing / recording setting information of each sub-unit set in step (a) to the main unit;

(c) if the reservation viewing / recording setting information of each subunit is transmitted in step (b), the main unit stores the information and transmits the reservation viewing / recording setting information to the corresponding subunit;

(d) in the main unit, comparing current time information with reserved viewing / recording setting information of each subunit to determine whether there is a subunit in which the current time matches a preset reserved viewing / recording start time;

(e) tuning and demodulating a reserved channel set in the subunit, if it is determined that there is a matching subunit in the step, and transmitting the same to the subunit; And

and (f) decoding the program of the channel received from the main unit and displaying it on the display device if the sub-unit is set to reserved viewing, and recording to the storage device if it is set to reserved recording. .

Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

Hereinafter, with reference to the accompanying drawings illustrating the configuration and operation of the embodiment of the present invention, 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 the technical spirit of the present invention described above and its core configuration and operation is not limited.

1 is a conceptual block diagram of a digital satellite broadcasting receiver disclosed in No. 38808, in which an antenna 101 capable of receiving a digital satellite broadcast in a high frequency band and a satellite in a high frequency band received through the antenna 101 are shown in FIG. Low noise amplifier (LNB) 102 for low noise amplifying a signal, a multi-switching unit 103 for dividing and outputting a plurality of satellite signals output from the LNB 102 and the multi-switching unit 103 A main unit 110 which receives a plurality of satellite signals outputted from the multi-tuner and tunes to a channel requested by each sub-unit through a multi tuner, converts them into a transport stream (TP), and outputs them to each sub-unit, and Received from the main unit 110 and descrambled and decoded by the stream of the channel requested by the one of the channels tuned in the main unit 110, respectively installed in an independent space It consists of a plurality of sub-units 120 to play.

2 is a detailed block diagram of the main unit 110, and is not provided with a display device (for example, a TV). That is, the main unit of FIG. 2 is composed of a plurality of tuners and demodulators 111a to 111d, receives the satellite RF signals output from the multi-switching unit 103, simultaneously tunes to the channels required by each sub-unit, and demodulates them. Multi-tuner unit 111 for outputting in TP form, multi-channel TP distribution unit 112, main unit for distributing TP signal output from each tuner and demodulator of the multi-tuner unit 111 to each sub-unit The central processing unit (CPU) 113, which controls the overall operation of the main unit and data communication between the main unit and each sub unit, and the TP signal of the main unit distributed by the distribution unit 112, the CPU 113 The main transceiver unit 116 receives the signal outputted through the sub-unit or outputs the signal from the sub-unit, and outputs the signal to the CPU 113 to both sides of the satellite broadcasting transmitter according to the request of the sub-unit. And a modem 114 for performing the directional communication.

Here, each tuner and demodulator of the multi-tuner unit 111 demodulates the satellite signal of the tuned channel by a quadrature phase shift keying (QPSK) method and converts the demodulated signal into a TP form.

Each sub unit is a sub-integrated receiver and decoder (IRD) for receiving a TP signal transmitted from the main unit 110 and restoring an original digital video and audio signal, and for displaying a decoded video signal. For example, a TV is connected and does not have a built-in satellite tuner.

The modem 114 is not installed in each subunit, but only in the main unit 110, and is transmitted through the modem 114 of the main unit in order to transmit or receive the satellite broadcast service provider from each subunit. That is, the main unit 110 independently transmits purchase information of each subunit to the satellite broadcasting service provider, and transmits the result back to the corresponding subunit. Therefore, it is not necessary to install a modem for each subunit, so that the burden on the user can be reduced.

In addition, if a block capable of performing demultiplexing is added to the main unit 110, the main unit 110 parses additional data information such as program guide information through demultiplexing and stores the memory of the main unit 110 ( 115) can be a database (DB). At this time, in each sub unit, the additional data information does not have to be separately DBized. That is, when additional data information is requested from a specific sub unit, the main unit reads out only necessary information from the additional data information in the memory 115 and transmits it to the corresponding sub unit. Hereinafter, for convenience of description, the program guide information stored in the DB in the memory 115 is referred to as an EPG DB. In this case, since the additional data information does not need to be separately databased in each subunit, the memory usage efficiency can be increased. As a result, the memory capacity of each subunit can be reduced, thereby reducing the user's cost burden.

Here, the main unit 110 and each sub unit 120 may be connected by wire or wirelessly. When the main unit and each sub unit are wirelessly connected, there is no need for a cable between the main unit and each sub unit, which makes it easy to install and move each sub unit. According to the present invention, the main unit and each sub unit communicate wirelessly.

The CAS unit is provided in each sub unit, and manages information related to user registration, authentication, and billing by using a smart card inserted into the CAS unit, and simultaneously descrambles scrambled data. Here, the smart card inserted into the CAS is a family smart card that can be equally applied to each sub unit, and may be issued as many as the number of sub units registered with the satellite broadcasting service provider. That is, only one ID and password may be registered in the smart card or ID and password may be registered for each subunit.

For example, if only one ID and password are registered, user ID can be authenticated by inputting the ID and password in any subunit.

If an ID and password are registered for each subunit in one smart card, the corresponding subunit must register its ID and password to receive this user authentication. In this case, security can be kept secure for each subunit.

In addition, when a sub ID and a password are registered for each sub unit in one smart card, a main ID and a password that can receive user authentication in any sub unit may also be registered. For example, the main ID and password are IDs and passwords that can be used by a parent such as a parent (hereinafter, referred to as a main user for convenience of explanation). The ID and password of the main unit may be set as the main ID and password. That is, the sub ID and password can receive user authentication only in the corresponding sub unit, but the main ID and password can receive user authentication in all sub units. The unit can set reserved viewing or reserved recording of other subunits including itself.

The reserved viewing is performed by a user presetting a viewing time of a specific channel with respect to at least one or more of the plurality of subunits, and when the time is reached, a program broadcasted to the channel automatically by the corresponding subunit. To receive and display through.

In the scheduled recording, a user presets a recording time of a specific channel with respect to at least one or more of the plurality of subunits, and when the time is reached, a program broadcasted to the channel is automatically transmitted from the corresponding subunit to the main unit. Is received through and stored on the storage device.

As described above, the reservation process or the reservation recording is similar, and when the set time is reached, the program of the corresponding channel is displayed on the display device or stored in the storage device. / Use with recording.

At this time, if a user sets reserved viewing or reserved recording for another subunit in one subunit, the subunit transmits the reserved viewing or reserved recording setting value of the subunit to the main unit. The main unit transmits the set value back to the corresponding sub unit so that the sub unit can know the reserved watching or reserved recording setting value of the sub unit.

In addition, the main unit may control the reservation viewing / recording of the corresponding subunit according to the reservation viewing / recording setting value of each subunit, or the own reservation according to its reservation viewing / recording setting value in each subunit. You can also control viewing / recording.

In the former case, when the reserved viewing / recording time set for each subunit is reached, the main unit automatically tunes and demodulates the channel at the reserved viewing / recording setting, and transmits the demodulation to the corresponding subunit. In the case of viewing, the program of the channel transmitted from the main unit is displayed on the display device through decoding, and in the case of reserved recording, the program is stored in the storage device. In this case, when the power of the sub unit is turned off, the main unit may turn on the power of the sub unit, or the sub unit may turn on its own power.

In the latter case, the main unit transmits the current time information to each subunit, and each subunit compares the current time with its own reserved viewing / recording settings and returns to the main unit when the time set for its reserved viewing / recording is reached. Request the channel. In the main unit, the requested channel is tuned and demodulated and transmitted to the corresponding sub unit. In the sub unit, the program of the channel transmitted from the main unit is displayed on the display device through decoding in case of reserved viewing, and in case of reserved recording. Save to storage. In this case, similarly, when the power of the sub unit is turned off, the main unit may turn on the power of the sub unit, or the sub unit may turn on its own power.

3 is a diagram illustrating an example of a menu for setting reservation viewing / recording in one sub-unit according to the present invention. That is, when a user displays a menu screen as shown in FIG. 3A by using an input device such as a remote controller in one of the plurality of subunits, and selects a reserved viewing / recording item among menu items of the menu screen. The reservation viewing / recording setting screen shown in FIG. 3B is displayed on the display device. Here, the reserved viewing and reserved recording menu items of the menu screen may be grouped together so as to be selected at one time as shown in FIG. 3A, or the reserved viewing and reserved recording menu items may be separately displayed and selected and set.

FIG. 3B is an example of a reserved viewing setting screen in which a user sets values required for reserved viewing on the reserved viewing / recording setting screen after selecting a reserved viewing / recording menu item of FIG. 3A.

That is, the sub-unit selection item on the reservation viewing / recording setting screen of FIG. 3B is an item for selecting a sub unit for setting reservation viewing or reservation recording, and a sub unit identifier for identifying each sub unit is displayed. Here, each of the sub unit identifiers may be set by the user or may be automatically set by the system. For example, the user may set the sub unit in the child room as the child name or the room name.

In addition, the Type item is an item for selecting a reserved view (Timer) or a reservation record (record). In the case of FIG. 3B, the type is reserved viewing, the channel is 201 channel, the date is June 12, the time is 5 pm, the viewing time is 10 minutes, and the repetition is set to one example.

In this case, the user may set different reservation viewing / recording for each subunit, may also set reservation viewing / recording only in any one of the plurality of subunits, and all sub-wires connected to the main unit by wire / wireless. The same reserved viewing / recording may be set for the unit.

In addition, the user may set the reserved viewing / recording only to the sub-unit currently performing the reserved viewing / recording setting, or may set the same reserved viewing / recording to at least a plurality of subunits but not all subunits.

If different scheduled viewing / recording is set for each subunit, the process of selecting a subunit to set reservation watching / recording and setting desired reservation viewing / recording to the selected subunit is sequentially performed for each subunit. Just select 'OK'. At this time, if you do not want to set the reservation viewing / recording, you can select 'Cancel'.

If the same reservation viewing / recording is to be set for all subunits connected to the main unit, the above-described process may be set, or a menu item indicating 'all subunits' may be set as the subunit selection item of FIG. 3B. You can also add them to one at a time. In other words, if you select 'All sub units' in the sub unit selection item, and then set the Type, Channel, Date, Time, Duration, and Repeat values, do.

In addition, when the reserved viewing / recording is to be set only for the sub-unit currently performing the reserved viewing / recording setting, the value necessary for the reserved viewing / recording may be set after selecting the current subunit as described above. If a menu item indicating 'current sub unit' is added to the sub unit selection item of FIG. 3B described above, then 'current sub unit' is selected and other values required for reserved viewing / recording of the current sub unit are reserved. You can set the viewing / recording. This case makes it easier and easier for the user to make reservation viewing / recording settings.

On the other hand, if not all subunits but want to set the same reservation viewing / recording to a plurality of subunits may be set sequentially for each subunit as described above, or all the subunit identifiers connected to the main unit pull-down method 3B, when the plurality of subunits are selected at a time by using a remote controller, other values necessary for reservation viewing / recording of the selected subunits are set, and then 'OK' is inputted. You can set up a scheduled viewing / recording at once. Here, the process of selecting a plurality of subunits is known to those skilled in the art, such as a process of selecting a plurality of files at one time for copying or deleting in a computer, and will not be discussed in detail in the present invention.

In this case, when the user accesses the reserved viewing / recording menu item on the menu screen of FIG. 3A, a password may be input. Thus, the menu screen as shown in FIG. 3B is displayed only when the user inputs the correct password. This is to prevent the main user, i.e., other than the parent, for example, children from watching or storing a program that the parent does not want. For example, if a main ID and password are registered in the smart card, only a user who correctly inputs the main ID and password may access the reserved viewing / recording menu item. The main ID and password may be an ID and a password of the main unit.

In this embodiment, only a password is input to access the reserved viewing / recording menu item, but both an ID and a password may be input, or only an ID may be input, which may be changed by a designer.                     

3A and 3B, the menu screen and the reservation viewing / recording setting screen are one embodiment, and modifications may be made by those skilled in the art, and thus the present invention is not limited to the examples.

In addition, the above-described reservation viewing / recording setting may be performed in one subunit among a plurality of subunits, and FIG. 4 illustrates an example of such a reservation viewing / recording setting process.

4 illustrates an example of communication between units in a process of setting reservation viewing / recording for subunit B in subunit A. Referring to FIG.

For example, if the main user inserts a smart card in the sub unit A, enters the main ID and password, goes through the user authentication process, and sets the reserved viewing / recording for the sub unit B through the above-described process of FIG. The sub unit A transmits the reserved viewing / recording setting information of the set sub unit B to the main unit. The main unit stores the received reservation viewing / recording setting information of the received subunit B and transmits the same to the subunit B so that the subunit B knows the reservation viewing / recording setting information for itself. In this case, the reserved viewing / recording setting information of each set subunit may be stored in a smart card. For example, the smart card may store ID and password, grade information, reservation viewing / recording setting information, etc. for each sub unit in a table. Then, when a specific sub unit undergoes user authentication through a smart card, it can automatically know its reserved viewing / recording setting information.

5 illustrates an example of a method for controlling reservation viewing / recording in a subunit in which reservation viewing / recording of the present invention is set, and shows an example of communication with a main unit, subunit B, and a user.

That is, the main unit periodically transmits current time information to each sub unit, and each sub unit compares the current time with time information among its reserved viewing / recording setting values. If a reservation time that matches the current time is set, the corresponding subunit (for example, subunit B) requests the reserved channel as the main unit, and the main unit tunes and demodulates the channel requested by the subunit B. Then transmit to subunit B. Then, the sub unit B displays the program of the channel transmitted from the main unit in the case of reserved viewing for the period reserved in the display device through descramble and decoding, and records in the storage device in the case of the reservation recording. That is, in the case of reserved recording, the sub unit B outputs a recording start command to a storage device and simultaneously stores a program of a reserved channel in the storage device, and outputs a recording end command to the storage device again when the reserved period is reached. To end the recording. Here, the storage device is a storage device provided in each sub unit, and may be an external memory such as a RAM, a VCR, a DVD, an HDD, or the like.

For example, assuming that reservation viewing is set in sub unit B as shown in FIG. 3B, if the time information of 5 pm on June 12 is received from the main unit and the currently displayed channel is not 201, the sub unit B requests channel 201 to the main unit, and the main unit tunes and demodulates channel 201 and transmits the demodulated signal to subunit B. The sub unit B displays the program of the channel 201 on the display device for 10 minutes. At this time, if there is no user key input to the sub unit B for a predetermined time, the power is turned off.

FIG. 6 is a flowchart illustrating the reservation viewing / recording control method in more detail, and illustrates a reservation viewing / recording control process in the sub-unit B. Referring to FIG.

That is, when the current time information is received from the main unit (step 601), the sub unit B compares the received current time with its preset reservation viewing / recording start time (step 602). If the current time is the scheduled viewing / recording start time through the comparison of step 602, the sub-unit B determines whether the power is off, that is, in a standby state (step 603).

If the power is turned off, the power of the sub unit B is turned on (step 606). If the power is turned on, it is compared whether the channel displayed on the display device connected to the sub unit B is a reserved channel (step 604).

If it is determined in step 604 that the channel displayed is not the reserved channel, the sub unit B requests the main unit to switch to the reserved channel (step 605), and the main unit tunes and demodulates the channel requested by the sub unit B. After that, it transmits to the sub unit B. Then, the sub unit B receives the program of the requested channel from the main unit, descrambles and decodes (step 607), and then outputs the decoded video / audio data to the display device in the case of reserved viewing, and reserves. In the case of recording, the data is output to the storage device (step 608). At this time, if a period is set in the reserved viewing / recording setting value of the sub unit B, the sub unit B performs the display or recording only for that period, and then turns off the power if there is no user's key input for a predetermined time.

6 described above takes sub unit B as an example, but this applies equally to all sub units.

As described above, according to the reservation viewing / recording method of the digital satellite broadcasting receiver according to the present invention, a multi-channel is simultaneously tuned through one main unit, and each sub-unit in a plurality of independent spaces is tuned in the main unit. Receives decoding and display by receiving a program of a specific channel, wherein one subunit can set reservation viewing / recording of subunits including itself, and reserve reservation of each subunit in the corresponding subunit or the main unit. / Record can be controlled according to the reserved viewing / recording setting value of each sub-unit. In particular, by setting reservation viewing / recording of all subunits including itself in one subunit and transmitting it to the corresponding subunit through the main unit, reservation viewing / recording setting of each subunit is easy.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

Claims (10)

A digital satellite broadcast receiver comprising a main unit and a plurality of sub units, A first sub unit configured to receive and output reservation information of a specific broadcast signal of a second sub unit among the sub units from a user; A main unit receiving a plurality of broadcast signals, transmitting a broadcast signal requested from a specific one of the sub units to the specific sub unit, and outputting the reservation information received from the first sub unit; and If the reservation information received from the main unit and the time information associated with the broadcast signal received from the main unit match, the received broadcast signal is output. If the reservation information does not match, the received reservation information is matched with the received reservation information to the main unit. And a second sub unit for requesting a broadcast signal including time information. The method of claim 1, And a first one of the subunits receives a password for allowing input of reservation information of the specific broadcast signal from a user and displays the reservation information. The method of claim 1, And the second sub unit cuts off power of the second sub unit when the output period elapses when the received reservation information includes the output period of the broadcast signal. A method of setting reservation information of a digital satellite broadcasting receiver including a main unit and a plurality of sub units, Receiving reservation information of a specific broadcast signal of a second sub unit from a user in a first sub unit of the sub units; Receiving a plurality of broadcast signals from the main unit, transmitting a broadcast signal requested from a specific one of the sub units to the specific sub unit, and outputting the reservation information received from the first sub unit; and The second sub unit outputs the received broadcast signal when the reservation information received from the main unit and the time information associated with the broadcast signal received from the main unit match, and if not, the second sub unit outputs the received broadcast signal to the main unit. And requesting a broadcast signal including time information corresponding to one reservation information. The method of claim 4, wherein In the first subunit of the subunits, receiving the reservation information of the specific broadcast signal of the second subunit of the subunits from the user, And receiving a password for allowing input of reservation information of the specific broadcast signal and displaying the reservation information. The method of claim 4, wherein In the second sub unit, if the received reservation information includes an output period of the broadcast signal, shutting off power of the second sub unit when the output period has elapsed; How to set up information. A digital satellite broadcast receiver comprising a main unit and a plurality of sub units, A first sub unit configured to receive reservation information of a specific broadcast signal of a second sub unit among the sub units from a user; Receives a plurality of broadcast signals, transmits a broadcast signal requested from a specific one of the sub units to the specific sub unit, outputs reservation information of the specific broadcast signal received from the first sub unit, and outputs the specific broadcast. A main unit for outputting the received broadcast signal when the reservation information of the signal and the time information associated with the received broadcast signal match; And And a second sub unit configured to receive and output reservation information and a specific broadcast signal of the specific broadcast signal from the main unit. The digital satellite broadcasting receiver of claim 7, wherein the first sub-unit receives a password for allowing input of reservation information of the specific broadcast signal from a user and displays the reservation information. A method of setting reservation information of a digital satellite broadcasting receiver including a main unit and a plurality of sub units, Receiving reservation information of a specific broadcast signal of a second sub unit from a user in a first sub unit of the sub units; The main unit receives a plurality of broadcast signals, transmits a broadcast signal requested from a specific subunit of the subunits to the specific subunit, outputs reservation information of the specific broadcast signal received from the first subunit, Outputting the received broadcast signal when reservation information of the specific broadcast signal and time information associated with the received broadcast signal match; And And receiving and outputting reservation information and a specific broadcast signal of the specific broadcast signal from the main unit in the second sub unit. The method of claim 9, wherein in the first sub unit, receiving the reservation information of the specific broadcast signal of the second sub unit among the sub units from the user, And receiving a password for allowing input of reservation information of the specific broadcast signal and displaying the reservation information.

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