KR20130025178A - Transmitting device and receiving device and mosaic channel system thereof - Google Patents

Transmitting device and receiving device and mosaic channel system thereof Download PDF

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Publication number
KR20130025178A
KR20130025178A KR1020110088544A KR20110088544A KR20130025178A KR 20130025178 A KR20130025178 A KR 20130025178A KR 1020110088544 A KR1020110088544 A KR 1020110088544A KR 20110088544 A KR20110088544 A KR 20110088544A KR 20130025178 A KR20130025178 A KR 20130025178A
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South Korea
Prior art keywords
broadcast signal
channel
broadcast
signal
unit
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KR1020110088544A
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Korean (ko)
Inventor
김남
이형수
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엘지이노텍 주식회사
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Priority to KR1020110088544A priority Critical patent/KR20130025178A/en
Publication of KR20130025178A publication Critical patent/KR20130025178A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding
    • H04N19/23—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding with coding of regions that are present throughout a whole video segment, e.g. sprites, background or mosaic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • H04N21/4351—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream involving reassembling additional data, e.g. rebuilding an executable program from recovered modules
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

According to an exemplary embodiment of the present invention, a mosaic channel system using a transmitting device and a receiving device includes a processor for receiving and processing a broadcast signal provided by a program provider for each channel, and a plurality of first encoding units for encoding and outputting the broadcast signal. A plurality of second encoding units for reducing and encoding a broadcast signal into a signal having a predetermined size and then outputting the encoded signal; an mixer for mixing and processing the broadcast signals output by the first and second encoders; and an uplinker for transmitting the processed signals. And a first control unit for controlling the operation of each functional unit of the transmitting device. And a demux for demultiplexing the broadcast signal received from the transmitting apparatus, a first decoding unit for decoding and outputting the demultiplexed broadcast signal, and reducing and decoding the demultiplexed broadcast signal into the predetermined size signal. A second decoding unit and a second control unit for controlling the operation of each functional unit of the receiving device.

Figure P1020110088544

Description

Transmitter, receiver and mosaic channel system using the same {TRANSMITTING DEVICE AND RECEIVING DEVICE AND MOSAIC CHANNEL SYSTEM THEREOF}

The present invention relates to a transmitter, a receiver and a mosaic channel system using the same.

In analog broadcasting, only one channel can be allocated to one frequency band, but in digital broadcasting, a plurality of channels can be allocated to one frequency band, so that multi-channelization is very easy in digital broadcasting.

As the digital broadcasting starts as described above, a large number of channels are possible as compared with the conventional analog broadcasting by transmitting a plurality of broadcasting channels to one physical channel.

As such, as digital broadcasting is multi-channeled, the user's demand for easy checking of programs provided through each channel has increased, and this demand will increase as the number of channels increases.

As such, since it is difficult for a user to search channels one by one, currently commercially available digital broadcasting receivers provide a program for each channel to the user and help the user easily select a broadcasting channel. Guide: EPG) service. The EPG service is serviced by various broadcast receivers such as digital satellite broadcasting, digital terrestrial broadcasting, digital audio broadcasting, and mobile multimedia broadcasting receiver. For example, the digital broadcasting receiver such as a set top box (STB) provides the EPG information. After receiving, the output is displayed on a screen of an external connection device such as a television so that a user can easily search for desired program information.

Among these EPGs, mosaic EPG is one of the spotlight methods by allowing users to directly check and select broadcast screens of various channels, and is recognized as an EPG service that must be supported in digital broadcasting.

1 is a block diagram of a broadcast transmitting apparatus for generating a conventional mosaic EPG.

Referring to FIG. 1, an audio / broadcast (A / V) processor 11 receives digital broadcast signals, that is, audio / broadcast (A / V) signals, provided from a plurality of program providers for each channel, When combining a channel to form a mosaic screen, A / V signals are processed by filtering out channels to be excluded and channels to select. The mosaic EPG generator 12 performs scaling and positioning on a plurality of broadcast signals, synthesizes these broadcast signals, reconstructs them into a mosaic EPG image to be displayed on one screen, and uses the mosaic screen 13 as a mux ( 14).

The mosaic EPG editor 15 edits a mosaic EPG image and additional information of one screen created by the mosaic EPG generator 12 and provides it to the mux 14. The additional information includes information necessary for screen switching, such as mosaic EPG organization information, cell location information, and additional information.

The mux 14 includes a mosaic EPG image of one screen, multiplexed audio information,

The additional information edited can be combined and transmitted.

However, in the case of the conventional mosaic EPG, the broadcast receiver has no choice but to select a channel through the mosaic EPG image already determined by the broadcasting station by transmitting the mosaic screen composed of the channels determined at the time of the broadcasting station.

That is, there is a problem in that the length that the user can set to arbitrary channels according to the preference is blocked.

The present invention has been proposed to solve the above-described problems, and can set the channel to suit the user's preference regardless of the mosaic channel display made and transmitted by the broadcasting station in the multi-channel digital broadcasting system. It is an object of the present invention to provide a transmitting apparatus, a receiving apparatus, and a mosaic channel system capable of providing a mosaic channel display.

In accordance with another aspect of the present invention, a transmission apparatus includes a processor configured to receive and process a broadcast signal provided from a program provider on a channel-by-channel basis; A first encoding unit encoding and outputting the broadcast signal; A second encoder which reduces the broadcast signal to a predetermined size and then encodes and outputs the encoded signal; A mixer for mixing and processing the broadcast signals output by the first and second encoding units; An up linker for transmitting the processed broadcast signal; And

It includes a first control unit for controlling the operation of each functional unit.

A receiving apparatus according to an embodiment of the present invention includes a demux for demultiplexing a broadcast signal received from a transmitting apparatus; A first decoding unit decoding and outputting the demultiplexed broadcast signal; A second decoding unit which reduces, decodes and outputs the demultiplexed broadcast signal into a signal having a predetermined size; And a second controller for controlling the operation of each functional unit.

According to an exemplary embodiment of the present invention, a mosaic channel system using a transmitting device and a receiving device includes a processor for receiving and processing a broadcast signal provided by a program provider for each channel, and a plurality of first encoding units for encoding and outputting the broadcast signal. Transmitting the processed signal to a broadcast satellite and a mixer for mixing and processing a plurality of second encoding units that reduce and encode a broadcast signal to a signal having a predetermined size and then output the encoded signal and the broadcast signals output by the first and second encoders. A transmitting device including an up linker and a first control unit controlling an operation of each functional unit of the transmitting device; And a demux for demultiplexing the broadcast signal received from the transmitting apparatus, a first decoding unit for decoding and outputting the demultiplexed broadcast signal, and reducing and decoding the demultiplexed broadcast signal into the predetermined size signal. A second decoding unit and a second control unit for controlling the operation of each functional unit of the receiving device.

Mosaic channel display method according to an embodiment of the present invention comprises the steps of receiving and processing a broadcast signal provided by a program provider for each channel; Encoding and outputting the broadcast signal, reducing the broadcast signal into a signal having a predetermined size, and then encoding and outputting the broadcast signal; Mixing and processing the output broadcast signal; Transmitting the processed broadcast signal; Demultiplexing the received broadcast signal; And decoding and outputting the demultiplexed broadcast signal, and decoding and outputting the broadcast signal reduced to the predetermined size.

The mosaic channel display method may be implemented as a computer-readable recording medium that records a program to be executed in a computer.

According to the embodiment of the present invention, the following effects can be obtained.

First, user convenience is increased by configuring a channel desired by a user among a plurality of channels as a mosaic channel.

Second, the receiving device can watch the broadcast channel without any additional screen number adjustment.

Third, the desired mosaic channel can be viewed by requesting a desired channel from the receiver side to the transmitter side.

1 is a block diagram of a broadcast transmitting device for generating a mosaic EPG according to the prior art.
2 is a schematic diagram showing a mosaic channel system according to an embodiment of the present invention.
3 is a block diagram illustrating a configuration of a transmitter according to an embodiment of the present invention.
4 is a block diagram illustrating a configuration of a receiver according to an embodiment of the present invention.
5 is a flowchart illustrating a mosaic channel display method according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

2 is a schematic diagram showing a mosaic channel system according to an embodiment of the present invention.

Referring to FIG. 2, the mosaic channel system includes a transmitter 100, a receiver 200, and an image display device 300.

The transmitting device 100 may include a processor 110, an encoding unit 120, a mixer 130, and a first control unit 140.

The processor 100 receives and processes digital broadcast signals provided by a plurality of program providers for each channel.

The processed signal is subjected to the encoding process through the encoding unit 120.

The encoder 120 includes first encoders 121, 122, and 123 for encoding and outputting the digital broadcast signal, and second encoders 124, 125, and 126 for reducing the digital broadcast signal to a predetermined size and then encoding and outputting the digital broadcast signal.

The predetermined size may be a size set by a user input through the receiving device 200. That is, the user may set a plurality of broadcast channels to be displayed on the display unit of the video display device 300, and configure the plurality of broadcast channels by transmitting information of a channel desired to be displayed to the transmitting device 100. .

The broadcast signal output from the encoding 120 is mixed and processed through the mixer 130, and the up linker (not shown) transmits the broadcast signal to the receiving device 200 through the broadcast satellite.

The first control unit 140 controls the overall operation of each functional unit of the transmitter 100.

The demux 210 of the receiver 200 may demultiplex the broadcast signal received from the transmitter 100.

The demultiplexed broadcast signal is decoded by the first decoder 220 and output, and at the same time, the second decoder 230 may be reduced to a signal having a predetermined size and then decoded and output. The predetermined size may be a size set by a user input through the receiving device 200. The user may set a plurality of broadcast channels to be displayed on the display unit of the video display device 300, and configure a plurality of channels by transmitting information of a desired channel to the transmitter 100.

The plurality of broadcast channel displays may mean a mosaic channel display.

The second control unit 240 may control the overall operation of each functional unit of the reception device 200.

The broadcast signal output from the receiving device 200 is transmitted to the video display device 300, and the user can check the mosaic channel display screen through the display unit of the video display device 300, and display the mosaic channel display screen in the user setting. Can be used according to.

3 is a block diagram illustrating a configuration of a transmitter according to an embodiment of the present invention.

The transmitter 100 may include a processor 110, an encoder 120, a mixer 130, and a first controller 140. The transmitter 100 may mux (not shown) multiplexing a broadcast signal and may transmit a broadcast signal. It may further include a modulator (not shown) that can be converted into a signal.

When the processor 110 receives digital broadcasting signals, that is, audio / video (A / V) signals braked from a plurality of program providers for each channel, and combines the plurality of channels to form one mosaic channel display screen, The A / V signals are processed by filtering the channel to be excluded and the channel to be selected.

The processed signal is subjected to the encoding process through the encoding unit 120.

The encoder 120 includes first encoders 121, 122, and 123 for encoding and outputting the digital broadcast signal, and second encoders 124, 125, and 126 for reducing the digital broadcast signal to a predetermined size and then encoding and outputting the digital broadcast signal.

Although the number of the first and second encoding units is shown as three in the figure, in another embodiment of the present invention, there may be a plurality of the first and second encoding units having such a function.

The predetermined size may be a size set by a user input through the receiving device 200. That is, the user may set a plurality of broadcast channels to be displayed on the display unit of the image display device 300, and transmit the same to the transmitting device 100.

The broadcast signal output from the encoding 120 is mixed and processed through the mixer 130, and the up linker (not shown) transmits the broadcast signal to the receiving device 200 through the broadcast satellite.

The first control unit 140 controls the overall operation of each functional unit of the transmitter 100. The first controller 140 may be implemented as a micom, a central processing unit (CPU), or a microprocessor.

4 is a block diagram illustrating a configuration of a receiver according to an embodiment of the present invention.

The receiving device 200 may include a demux 210, a first decoding unit 220, a second decoding unit 230, a second control unit 240, and a storage unit 250.

The receiver 200 of the present invention may be implemented as a digital broadcast receiver such as, for example, a digital television (D-TV) or a set top box (STB), and furthermore, a broadcast satellite, a terrestrial broadcasting station, a cable, and the like. It may include all devices that receive and process a multi-channel digital broadcast signal input from a broadcasting station and output the same to the video display device 300. Accordingly, although not shown in the drawing, the receiver 200 according to the present invention receives other components necessary for receiving and processing digital broadcast signals and output them to the video display device 300, for example, satellite signals, cable signals, and the like. Other components such as a descrambling unit for descrambling the scrambled signal, a CAS (Conditional Access System) for charge reception of digital satellite broadcasting, and a D / A converter for converting a digital signal into an analog signal It may include.

The demux 210 may demultiplex the broadcast signal received from the transmitter 100.

The demultiplexed broadcast signal is decoded by the first decoder 220 and output, and at the same time, the second decoder 230 may be reduced to a signal having a predetermined size and then decoded and output. The predetermined size may be a size set by a user input through the receiving device 200. The user may set a plurality of broadcast channels to be displayed on the display unit of the video display device 300, and configure a plurality of channels by transmitting information of a desired channel to the transmitter 100.

The plurality of broadcast channel displays may mean a mosaic channel display.

The first decoding unit 220 outputs the A / V signal according to the broadcast channel selected by the user to the video display device 300, and the second decoding unit 230 is set by the user according to the control signal of the controller 240 Each broadcast channel display screen configured by the caller, that is, the mosaic channel display screen is called out and output to the video display device 300, so that the user can view the mosaic channel display screen.

The second control unit 240 may control the overall operation of each functional unit of the reception device 200.

The second control unit 240 controls the operation of the receiving apparatus 200 when the user selects an arbitrary broadcast channel through a user interface unit (not shown), and selects the corresponding broadcast channel, and corresponds to the broadcast channel. The broadcast signal is output to the video display device 300. In another embodiment of the present invention, the second control unit 240 may be implemented as a micom, a central processing unit (CPU), or a microprocessor.

The receiver 200 may further include a tuner (not shown) and a demodulator (not shown).

The tuner may select and receive a multi-channel digital broadcast signal transmitted from a plurality of program providers for each physical frequency.

The demodulator receives and demodulates a broadcast signal output from the tuner. Preferably, the demodulator receives satellite signals, terrestrial signals, cable signals, etc., transmitted from broadcast satellites, terrestrial broadcasters, cable broadcasters, and the like, and processes them into baseband signals.

The storage unit 250 may store the mosaic channel display screen according to the user's setting.

The storage unit 250 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (eg, SD or XD memory), It may include at least one type of storage medium such as RAM, ROM (EEPROM, etc.).

5 is a flowchart illustrating a mosaic channel display method according to an embodiment of the present invention.

The receiving device 200 may receive the type and size of a channel desired by the user and transmit the received type to the transmitting device 100 (S11).

The processor 110 of the transmitter 100 receives and processes broadcast signals provided from a plurality of program providers for each channel (S11). More specifically, when receiving digital broadcasting signals, i.e., audio / video (A / V) signals, braked from a plurality of program providers for each channel, and combining the plurality of channels to form a mosaic channel display screen. A / V signals are processed by filtering out channels to be excluded and channels to be selected (user-set channels).

The encoding unit of the transmitter 100 encodes and outputs the processed broadcast signal, and reduces and encodes the broadcast signal into a signal having a predetermined size (S12).

The predetermined size may be a size set by a user input through the receiving device 200. That is, the user may set a plurality of broadcast channels to be displayed on the display unit of the video display device 300, and configure the plurality of channels by transmitting information of a desired channel to the transmitting device 100.

The mixer 130 of the transmitter 100 may mix and process the output broadcast signal (S13).

An up linker (not shown) of the transmitter 100 transmits the processed broadcast signal to the receiver 200 (S14).

The demux 210 of the receiver 200 demultiplexes the received broadcast signal (S15).

The demultiplexed broadcast signal is decoded by the first decoder 220 and output, and at the same time, the second decoder 230 may be reduced to a signal having a predetermined size and then decoded and output (S16). The predetermined size may be a size set by a user input through the receiving device 200. The user may set a plurality of broadcast channels to be displayed on the display unit of the image display device 300, and may transmit the same to the transmitter 100.

The plurality of broadcast channel displays may mean a mosaic channel display.

The first decoding unit 220 outputs the A / V signal according to the broadcast channel selected by the user to the video display device 300, and the second decoding unit 230 is set by the user according to the control signal of the controller 240 Each broadcast channel display screen configured to be called, that is, a mosaic channel display screen is called up and output to the video display device 300 (S17), so that the user can view the mosaic channel display screen (S18).

Through the above process, the user's convenience is increased by configuring the channel desired by the user among the plurality of channels as the mosaic channel.

In addition, the receiving apparatus 200 may watch a broadcast channel without additional screen number adjustment.

The above-described mosaic channel display method according to the present invention can be stored in a computer-readable recording medium that is produced as a program for execution on a computer. Examples of the computer-readable recording medium include ROM, RAM, CD-ROM. Magnetic tapes, floppy disks, optical data storage devices, and the like, and also include those implemented in the form of carrier waves (eg, transmission over the Internet).

The computer readable recording medium may be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. And, functional programs, codes and code segments for implementing the above method can be easily inferred by programmers of the technical field to which the present invention belongs.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

100: transmitter 110: processor
120: encoding unit 121,122,123: first encoding unit
124,125,126: second encoding unit 130: mixer
140: first control unit
200: receiver 210: demux
220: first decoding unit 230: second decoding unit
240: second control unit 250: storage unit
300: video display device

Claims (12)

A processor for receiving and processing a broadcast signal provided by a program provider for each channel;
A first encoding unit encoding and outputting the broadcast signal;
A second encoder which reduces the broadcast signal to a predetermined size and then encodes and outputs the encoded signal;
A mixer for mixing and processing the broadcast signals output by the first and second encoding units;
An up linker for transmitting the processed broadcast signal; And
And a first control unit for controlling the operation of each functional unit. The method of claim 1, wherein the predetermined size
And a size set by a user input through the receiving device. Demux for demultiplexing the broadcast signal received from the transmitting device;
A first decoding unit decoding and outputting the demultiplexed broadcast signal;
A second decoding unit which reduces, decodes and outputs the demultiplexed broadcast signal into a signal having a predetermined size; And
And a second control unit for controlling the operation of each functional unit. The method of claim 3,
A user interface unit for receiving an input from a user;
A channel selector for changing a broadcast channel according to a channel selection command of the user;
A tuner tuned to a broadcast frequency selected by the channel selector to receive a broadcast signal;
Receiving device further comprising. The method of claim 3,
And a memory unit which stores a mosaic channel display screen according to a user's setting. In the mosaic channel system using a transmitter and a receiver,
A processor for receiving and processing a broadcast signal provided by a program provider for each channel;
A plurality of first encoding units encoding and outputting the broadcast signal;
A plurality of second encoding units configured to reduce the broadcast signal to a signal having a predetermined size, and then encode and output the broadcast signal;
A mixer for mixing and processing the broadcast signals output by the first and second encoding units;
An up linker for transmitting the processed signal;
A transmission device including a first control unit for controlling an operation of each functional unit of the transmission device; And
Demux for demultiplexing the broadcast signal received from the transmitting device
A first decoder which decodes and outputs the demultiplexed broadcast signal;
A second decoding unit which reduces and decodes the demultiplexed broadcast signal into a signal having a predetermined size and outputs the decoded signal;
Mosaic channel system comprising a receiving device including a second control unit for controlling the operation of each functional unit of the receiving device. The method of claim 6, wherein the predetermined size is
Mosaic channel system, characterized in that the size is set by the user input via the receiving device. 7. The apparatus of claim 6, wherein the receiving device
A user interface unit for receiving an input from a user;
A channel selector for changing a broadcast channel according to a channel selection command of the user;
A tuner tuned to a broadcast frequency selected by the channel selector to receive a broadcast signal;
Mosaic channel system, characterized in that it further comprises. The method according to claim 6,
And a memory unit for storing a mosaic channel display screen according to a user's setting. Receiving and processing a broadcast signal provided from a program provider for each channel;
Encoding and outputting the broadcast signal, reducing the broadcast signal into a signal having a predetermined size, and then encoding and outputting the broadcast signal;
Mixing and processing the output broadcast signal;
Transmitting the processed broadcast signal;
Demultiplexing the received broadcast signal; And
Decoding and outputting the demultiplexed broadcast signal, and decoding and outputting the broadcast signal reduced to the predetermined size. The method of claim 10, wherein the predetermined size is
The mosaic channel display method, characterized in that the size is set by the user input via the receiving device. A computer-readable recording medium having recorded thereon a program for executing the method according to any one of claims 10 to 11.
KR1020110088544A 2011-09-01 2011-09-01 Transmitting device and receiving device and mosaic channel system thereof KR20130025178A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022065662A1 (en) * 2020-09-23 2022-03-31 삼성전자(주) Electronic device and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022065662A1 (en) * 2020-09-23 2022-03-31 삼성전자(주) Electronic device and control method thereof

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