CN1270531C - Digital broadcast signal sending device - Google Patents
Digital broadcast signal sending device Download PDFInfo
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- CN1270531C CN1270531C CNB02142294XA CN02142294A CN1270531C CN 1270531 C CN1270531 C CN 1270531C CN B02142294X A CNB02142294X A CN B02142294XA CN 02142294 A CN02142294 A CN 02142294A CN 1270531 C CN1270531 C CN 1270531C
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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23614—Multiplexing of additional data and video streams
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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2365—Multiplexing of several video streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
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- Engineering & Computer Science (AREA)
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- Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to a digital broadcast signal sending device. A packet differentiating section separates received data broadcast data into a first data broadcast packet where real time performance is a requirement, a DII section packet, an event message section packet, and a second data broadcast packet where the real time performance is not severely required more compared with that of the first data broadcast packet, and stores the packets of the types to output buffers. When a band occupancy rate for television broadcast exceeds a prescribed threshold, a multiplex processing section reads only the data broadcast packet, the DII section packet, and the event message section packet denoting the highest priority from the output buffers at a fixed rate and gives them to a multiplexer section, and multiplexes the packets with an output of a TS multiplex processing section.
Description
Technical field
The present invention relates to be applicable to the broadcast singal dispensing device of the digital television broadcasting system of satellite broadcasting, terrestrial broadcasting etc., relate in particular to the sort of broadcast band influence of change that is not subjected to, can transmit the digital broadcast signal multichannel dispensing device of the high data broadcasting of priority expeditiously with data.
Background technology
Begun to utilize the digital broadcasting of the broadcasting-satellite system of communication satellite and broadcasting satellite in recent years.The ground roll broadcast system is also being planned to shift to digital broadcasting further.
This digital broadcasting, usually by the digital broadcasting radio station except that carrying out television broadcasting, also carry out data broadcastings such as text broadcast.That is to say, with television program mutually interlock information and do not provide by data broadcasting with the various information programs such as independent information of television program phase interlock.
Generally, the multichannel in digital broadcasting radio station output ratio, promptly the bandwidth of broadcasting wave is fixed in advance.Therefore, digital broadcasting radio station (transmitting station) should export the data that should be transmitted by data broadcasting according to deduct ratio after the picture-and-sound transmission ratio that television program uses from fixing multichannel output ratio.
But the picture-and-sound transmission ratio changes with TV programme and image scene, so the frequency band that can be used for data broadcasting sometimes narrows down, transfer of data needs for a long time, and the high data broadcasting of order of priority can not real-time Transmission with data, forms fault.On the contrary, also can occur sometimes, the occupied bandwidth of television broadcasting reduces, and produces the frequency band of a plurality of untapped wastes.
Summary of the invention
The object of the invention provides a kind of energy and eliminates above-mentioned shortcoming, be not subjected to the influence of broadcast band change, transmitting data broadcasting sends processing unit with the broadcast singal of data expeditiously, especially provides a kind of can being placed on the high data broadcasting of order of priority with data at least to carry out multiplex digital broadcast signal multichannel dispensing device on the television broadcasting signal expeditiously.
According to one aspect of the invention, a kind of program sends processing unit, be used for digit broadcasting system, this digit broadcasting system sends following 2 kinds of signals according to the control of external control device: television broadcasting signal, be assigned with at least a portion frequency band in the regulation broadcast band, and comprised the television broadcasting material information of expression television program material; And data broadcasting signal, its be assigned with above-mentioned broadcast band in the different frequency band of above-mentioned television broadcasting signal frequency band, and comprise following information: a plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively; And cycle information, wherein comprise the control information relevant with data broadcast program, above-mentioned program sends processing unit and has the multiplex machine that carries out above-mentioned data broadcasting signal transmission processing according to the frequency band occupation rate of television broadcasting signal, it is characterized in that above-mentioned multiplex machine; The part of the frequency band of above-mentioned data broadcasting signal is set at fixed frequency band, be remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate, at least a part of data broadcasting material information and the above-mentioned cycle information that are set to high-precedence are assigned on the said fixing frequency band, send as above-mentioned data broadcasting signal, frequency band occupation rate according to above-mentioned television broadcasting signal, a plurality of data broadcasting material information and above-mentioned cycle information are in a preferential order distributed to above-mentioned variable frequency range selectively, send as above-mentioned data broadcasting signal.
According to a further aspect of the present invention, a kind of program sends processing unit, be used for digit broadcasting system, this digit broadcasting system sends following signal according to the control of external control device: television broadcasting signal, be assigned with at least a portion frequency band in the regulation broadcast band, and comprised the television broadcasting material information of expression television program material; And data broadcasting signal, be assigned with above-mentioned broadcast band in the different frequency band of television broadcasting signal frequency band, and comprise following information: a plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively; Cycle information, wherein comprise the control information relevant with data broadcast program, and event message information, comprising other additional informations, above-mentioned program sends processing unit and has the multiplex machine that carries out above-mentioned data broadcasting signal transmission processing according to the frequency band occupation rate of television broadcasting signal, it is characterized in that above-mentioned multiplex machine is set at fixed frequency band to the part of the frequency band of above-mentioned data broadcasting signal, be remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate, at least a part of data broadcasting material information that is set to high-precedence, above-mentioned cycle information and above-mentioned event message information distribution are to the said fixing frequency band, send as above-mentioned data broadcasting signal, frequency band occupation rate according to above-mentioned television broadcasting signal, a plurality of data broadcasting material information, above-mentioned cycle information and above-mentioned event message information are in a preferential order distributed to above-mentioned variable frequency range selectively, send as above-mentioned data broadcasting signal.
Another aspect according to the present invention, a kind of digital broadcast signal multichannel dispensing device, be used for digit broadcasting system, this digit broadcasting system sends following signal according to the control of external control device: television broadcasting signal, be assigned with at least a portion frequency band in the regulation broadcast band, and comprised the television broadcasting material information of expression television program material; And the data broadcasting signal of pack arrangement, be assigned with above-mentioned broadcast band in the different frequency band of television broadcasting signal frequency band, and comprise following information: a plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively; And cycle information, wherein comprise the control information relevant with above-mentioned data broadcast program, this digital broadcast signal multichannel dispensing device, frequency band occupation rate according to above-mentioned television broadcasting signal, above-mentioned data broadcasting signal is modulated on the above-mentioned television broadcasting signal selectively sends, it is characterized in that comprising: separator is separated into a plurality of data broadcasting material information and cycle information to the above-mentioned data broadcasting signal that is transfused to; A plurality of buffers are stored a plurality of data broadcasting material information, cycle information after being separated by this separator respectively by the bag of information category and regulation; Multiplexing judging part, multiplexing requirement during according to above-mentioned television broadcasting signal and the reception of above-mentioned data broadcasting signal, judge the frequency band occupation rate of above-mentioned television broadcasting signal, and multiplex processor, the output of above-mentioned a plurality of buffers is multiplexed on the above-mentioned television broadcasting signal selectively, above-mentioned multiplex processor, the part of the frequency band of above-mentioned data broadcasting signal is set at fixed frequency band, be remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate, be higher than under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, according to from above-mentioned a plurality of buffers, reading a part of data broadcasting material information and the above-mentioned cycle information that is set to high-precedence with the corresponding ratio of said fixing frequency band, be multiplexed on the above-mentioned television broadcasting signal, be lower than under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, from above-mentioned a plurality of buffers, in a preferential order read above-mentioned a plurality of data broadcasting material information and above-mentioned cycle information selectively, be multiplexed on the above-mentioned television broadcasting signal.
Another aspect according to the present invention, a kind of digital broadcast signal multichannel dispensing device, be used for digit broadcasting system, this digit broadcasting system sends following signal according to the control of external control device: television broadcasting signal, be assigned with at least a portion frequency band in the regulation broadcast band, and comprised the television broadcasting material information of expression television program material; And the data broadcasting signal of pack arrangement, be assigned with broadcast band in the different frequency band of television broadcasting signal frequency band, and comprise following information: a plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively; And cycle information, wherein comprise the control information relevant with above-mentioned data broadcast program, this digital broadcast signal multichannel dispensing device, frequency band occupation rate according to television broadcasting signal, above-mentioned data broadcasting signal is multiplexed on the above-mentioned television broadcasting signal selectively, send, it is characterized in that comprising: separator is separated into a plurality of data broadcasting material information and cycle information to the data broadcasting signal that is transfused to; A plurality of buffers are stored a plurality of data broadcasting material information, cycle information after being separated by this separator respectively by the bag of information category and regulation; Multiplexing judging part, multiplexing requirement during according to above-mentioned television broadcasting signal and the reception of above-mentioned data broadcasting signal, judge the frequency band occupation rate of above-mentioned television broadcasting signal, the multichannel processor is multiplexed into the output of above-mentioned a plurality of buffers on the television broadcasting signal selectively; And the buffer monitoring arrangement, monitor a plurality of data broadcasting material information that are stored in above-mentioned a plurality of buffer, each storage capacity of wrapping of cycle information; Above-mentioned multiplex processor, the part of the frequency band of above-mentioned data broadcasting signal is set at fixed frequency band, be remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate, surpass under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, according to from above-mentioned a plurality of buffers, reading a part of data broadcasting material information and the above-mentioned cycle information that is set to high-precedence with the corresponding ratio of said fixing frequency band, be multiplexed on the above-mentioned television broadcasting signal, surpass under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, and the storage capacity at above-mentioned a plurality of buffers that above-mentioned buffer monitoring arrangement monitors surpasses under the situation of setting, stops the input of above-mentioned a plurality of data broadcasting material information and above-mentioned cycle information.
Another aspect according to the present invention, a kind of digital broadcast signal multichannel dispensing device, be used for digit broadcasting system, this digit broadcasting system sends following signal according to the control of external control device: television broadcasting signal, be assigned with at least a portion frequency band in the regulation broadcast band, and comprised the television broadcasting material information of expression television program material; And the data broadcasting signal of pack arrangement, be assigned with broadcast band in the different frequency band of television broadcasting signal frequency band, and comprise following information: a plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively; Cycle information wherein comprises the control information relevant with above-mentioned data broadcast program; And event message information, comprising other additional informations, this digital broadcast signal multichannel dispensing device is according to the frequency band occupation rate of television broadcasting signal, above-mentioned data broadcasting signal is modulated on the above-mentioned television broadcasting signal selectively sends, it is characterized in that comprising: separator is separated into a plurality of data broadcasting material information, cycle information and event message information to the data broadcasting signal that is transfused to; A plurality of buffers are stored a plurality of data broadcasting material information, cycle information and event message information after being separated by this separator respectively by the bag of information category and regulation; Multiplexing judging part, the frequency band occupation rate of above-mentioned television broadcasting signal is judged in the multiplexing requirement when receiving according to above-mentioned television broadcasting signal and above-mentioned data broadcasting signal; And multiplexer, the output of above-mentioned a plurality of buffers is modulated on the above-mentioned television broadcasting signal selectively, above-mentioned multiplexer is set at fixed frequency band to the part of the frequency band of above-mentioned data broadcasting signal, be remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate, surpass under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, according to from above-mentioned a plurality of buffers, reading the data broadcasting material information that is set to above-mentioned high-precedence with the corresponding ratio of said fixing frequency band, above-mentioned cycle information and above-mentioned event message information, be multiplexed on the above-mentioned television broadcasting signal, be lower than under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, from above-mentioned a plurality of input buffers, in a preferential order read above-mentioned a plurality of data broadcasting material information selectively, above-mentioned cycle information and above-mentioned event message information are multiplexed on the above-mentioned television broadcasting signal.
Another aspect according to the present invention, a kind of digital broadcast signal multichannel dispensing device, be used for digit broadcasting system, this digit broadcasting system sends following signal according to the control of external control device: television broadcasting signal, be assigned with at least a portion frequency band in the regulation broadcast band, and comprised the television broadcasting material information of expression television program material; And the data broadcasting signal of pack arrangement, be assigned with broadcast band in the different frequency band of television broadcasting signal frequency band, and comprise following information: a plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively; Cycle information wherein comprises the control information relevant with above-mentioned data broadcast program; And event message information, comprising other additional informations, this digital broadcast signal multichannel dispensing device, frequency band occupation rate according to television broadcasting signal, above-mentioned data broadcasting signal is modulated on the above-mentioned television broadcasting signal selectively sends, it is characterized in that comprising: separator is separated into a plurality of data broadcasting material information and cycle information and event message information to the data broadcasting signal that is transfused to; A plurality of buffers are stored a plurality of data broadcasting material information, cycle information and event message information after being separated by this separator respectively by the bag of information category and regulation; Multiplexing judging part, the frequency band occupation rate of above-mentioned television broadcasting signal is judged in the multiplexing requirement when receiving according to above-mentioned television broadcasting signal and above-mentioned data broadcasting signal; Multiplexer is modulated to the output of these a plurality of buffers on the television broadcasting signal selectively; And the buffer monitoring arrangement, monitor each storage capacity of wrapping that is stored in a plurality of buffers interior above-mentioned a plurality of data broadcasting material information, cycle information and event message information; Above-mentioned multiplex processor, the part of the frequency band of above-mentioned data broadcasting signal is set at fixed frequency band, be remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate, surpass under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, according to from above-mentioned a plurality of buffers, reading a part of data broadcasting material information that is set to high-precedence with the corresponding ratio of said fixing frequency band, above-mentioned cycle information and above-mentioned event message information, be multiplexed on the above-mentioned television broadcasting signal, surpass under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, and the storage capacity at above-mentioned a plurality of buffers that above-mentioned buffer monitoring arrangement monitors surpasses under the situation of setting, stops above-mentioned a plurality of data broadcasting material information, the input of above-mentioned cycle information and above-mentioned event message information.
Description of drawings
Fig. 1 is the expression intra-office system that uses digital broadcast signal multichannel dispensing device of the present invention
The block diagram of the 1st embodiment.
Fig. 2 is the block diagram of concrete formation of the multiplexer 13 of expression intra-office system shown in Figure 1.
Fig. 3 is the block diagram of the 2nd embodiment of the expression intra-office system that uses digital broadcast signal multichannel dispensing device of the present invention.
Fig. 4 is the block diagram of concrete formation of the data broadcasting sending part 15 of expression intra-office system shown in Figure 3.
Fig. 5 is the time diagram of the frequency band relation of television broadcasting signal in the foregoing description of expression intra-office system and data broadcasting signal.Fig. 6 is the time diagram of the processing action among this embodiment of explanation.
Embodiment
Inventive embodiment
As shown in Figure 1, use the intra-office system of digital broadcast signal multichannel dispensing device of the present invention to have: external control device 10, image encoder (MPEG-ENC) 11, sound accompaniment encoder (AAC-ENC) 12, multiplexer (MUX) 13, data broadcasting sending part 15, intra-office clock (internal clocking) 17.External control device 10 sends control part (APC) 16 by coding multichannel control part (EMC) 14, automatic program (broadcast singal) and data server (DS) 18 constitutes.
Image encoder (mpeg encoder) 11 utilizes to come the viewdata signal of television program is carried out compressed encoding according to the image compression encoding mode of MPEG2 (Moving PictureExperts Group phase 2) and MPEG4, generate bit stream 110, output in the multiplexer (MUX) 13.It is that the coded system of standard comes the sound accompaniment data-signal of television program is carried out compressed encoding that sound accompaniment encoder (AAC encoder) 12 utilizes with Advanced AudioCoding (AAC) audio, generates bit stream 120, outputs in the multiplexer 13.
Data broadcasting sending part 15 is a kind of broadcast data servers, it sends the indication information 160 that control part (APC) 16 provides according to automatic program, according to data carousel formula tape (carousel) (ISO/IEC13818-6), data broadcasting to pack arrangement is encoded with module data, the data broadcasting service that is independent of television program is encoded according to PMT (ISO/IEC13818-1), send in the multiplexer (MUX) 13.
Come the encoder control signal 142 of own coding multichannel control part (EMC) 14, according to send indication information that control part (APC) 16 provides by automatic program, send data dispatching and the establishment of measuring by intra-office clock 17 constantly, be sent as respectively to image encoder 11 and sound accompaniment encoder 12 and carry out by the coding of MPEG with by the necessary information of the coding of ACC sound accompaniment.And, to the required information of broadcast system of image encoder 11 and sound accompaniment encoder 12 transmission coding ratios and coding beginning or end.
Send following 2 kinds of information from the multiplexer control signal 140 of coding multichannel control part (EMC) 14 to multiplexer (MUX) 13; A kind of information is used for the transmission stream according to a plurality of MPEG modes is carried out multipath conversion, makes it become one and transmits stream; Another kind of information is used for generator specification information (PS1) and carries out multipath conversion.And, in the PSI that multiplexer 13 generates, comprise following 2 kinds of information among PMT, the PAT: a kind ofly be and program-associated information; Another kind is to be illustrated in to transmit among stream (TS) 130 whether comprise the data broadcasting data.
The programming moment that control part (APC) 16 measures according to broadcast scheduling data that provided by data server (DS) 18 (establishment information) and intra-office clock 17 is provided automatic program, sends indication control signals 160 to coding multichannel control part (EMC) 14 and data broadcasting sending part (server) 15.This indication control signal 160 send the sort of data broadcasting service of encoding, be independent of TV programme according to data carousel formula tape according to PMT (1S/IEC13818-1) encode that necessary information and coding ratio and coding begin or broadcast system such as end in the information that needs.
Multiplexer (MUX) 13 have formation as shown in Figure 2, have: TS multichannel handling part 131, multichannel judging part 132, bag difference portion 133, a plurality of output buffer 1341～1344, multichannel portion 135, buffer monitoring unit 136 and the 1st multichannel handling part 137.
TS multichannel handling part 131 sends the data that comprise from coding multichannel control part 14 in interior multichannel solicited message to multichannel judging part 132, according to judged result to this request, each bit stream 110,120, send in the multichannel portion 135 as bag multichannel output 1310 from image encoder 11 and sound accompaniment encoder 12.
Multichannel judging part 132 sends in TS multichannel handling part 131 judged result from the multichannel request of TS multichannel handling part 131.The transmission ratio that in this judged result, comprises television program.
133 inputs of bag difference portion are distinguished following various bag from the data broadcasting data 150 of data broadcasting sending part 15 outputs according to the control information of being supplied with by data server 18 180:
Data send bag, and its order of priority is set.
Download message indication (DII) section bag, it is as cycle information, comprising the control signal relevant with data broadcast program; And
Event message section bag is comprising other additional informations.
In the bag of being distinguished by this bag difference portion 133, the 1st data broadcast packets that requires real-time quantity in accordance with regulations is kept in the 1st output buffer 1341 successively, and the DII section wraps in accordance with regulations that quantity is kept in the 2nd output buffer 1342 successively.The event message section wraps in accordance with regulations that quantity is kept in the 3rd output buffer 1343 successively, compares with the 1st data broadcast packets, and the 2nd data broadcast packets that does not require real-time quantity in accordance with regulations is kept in the 4th output buffer 1344 successively.
Multichannel portion 135 multichannel selectively exports the output 1310 of TS multichannel efferent 131, the output of each output buffer 1341～1344.The interior bag number of each output buffer that 136 pairs of buffer monitoring units are kept at the 1st output buffer 1341～the 4th output buffer 1344 monitors.
Multichannel handling part 137 sends multichannel solicited message 1370 according to the supervision result of buffer monitoring unit 136 to multichannel judging part 132, according to the judged result of 13 pairs of these multichannel requests 1370 of multichannel judging part, the bag in each output buffer that is kept at the 1st output buffer 1341～the 4th output buffer 1344 is read control.
Fig. 3 represents to adopt the 2nd embodiment of the intra-office system of digital broadcast signal multichannel dispensing device of the present invention.The same with the 1st embodiment of Fig. 1, have: image encoder (V-ENC) 11, vocoder (A-ENC) 12, multiplexer (MUX) 13, coding multichannel control part (EMC) 14, data broadcasting sending part 15, automatic program send control part (APC) 16, intra-office clock 17 and data server (DS) 18.
In the present embodiment, the broadcast scheduling data (establishment information) that provided by data server (DS) 18 on constituting are sent in the data broadcasting sending part 15.Other constitute with Fig. 1's
Embodiment is identical.
The concrete formation of the data broadcasting sending part 15 shown in Fig. 4 presentation graphs 2 embodiment, wherein have: D11 segment buffer 151, event message segment buffer 152, a plurality of data broadcasting service bag buffer 1531～153n, the 2nd multichannel handling part 154, output buffer 155 and MUX send signal detecting part 156.
A plurality of data broadcasting service bag buffer 1531～153n are quantity storage data broadcasting service bag formation in accordance with regulations respectively, comprising the material information of the 1st data broadcast program of importing and require real-time from the outside and the material information of comparing the 2nd data broadcast program that does not require real-time with the 1st data broadcast program.
Sending under the situation of the notice that surpasses threshold value from MUX transmission signal detecting part 156, the 2nd multichannel handling part 154 takes out bag respectively according to predefined fixed ratio from DII segment buffer 151 and event message segment buffer 152, be written in the output buffer 155.Simultaneously, order of priority according to the data broadcast program of notifying by data server 18 (Fig. 3), from a plurality of data broadcasting service bag buffer 1531～153n, only take out the bag that comprises data broadcast program material information be set to high-precedence, and be written in the output buffer 155.
Processing action in the foregoing description formation now is described.
At first, as the basic conception that transmits, the transmission band of data broadcasting uses the residue frequency band of the employed frequency band of image/sound accompaniment of television program.The compression coding technology of pressing the MPEG2 regulation is adopted in image in the digital broadcasting/sound accompaniment, so the frequency band of the usefulness of televising changes with image scene.Past, data broadcasting with data in advance frequency band unnecessary in the maximum code amount of image/sound accompaniment as target, transmit by constant bitrate, so, still without any multiplexing frequency band, cause waste when the size of code that can appear at image/sound accompaniment reduces.
Therefore, the present invention the 1st embodiment remains untouched the data broadcasting from data broadcasting sending part 15 output and is input in the multiplexer (MUX) 13 with data, utilize multiplexer (MUX) 13 to change that broadcasting sends control with data to data according to frequency band.Transmission control situation in the case describes referring now to Fig. 6 A, 6B.
Multiplexer (MUX) 13 is input to the data broadcasting from data broadcasting sending part 15 in the bag difference portion 133 with data, be separated into the 1st data broadcast packets, the 2nd data broadcast packets, DII section bag, event message section bag, then the bag of regulation number stored into respectively in each output buffer 1341～1344 successively.The bag that is stored in each output buffer 1341～1344 is monitored by buffer monitoring unit 136 that respectively it monitors that the result is informed in the multichannel handling part 137.
In the 1st multichannel handling part 137, if receive supervision result from buffer monitoring unit 136, then send the multichannel solicited message to multichannel judging part 132, according to judged result to this multichannel solicited message, judge the frequency band occupation rate of television broadcasting signal, it is the transmission ratio of television broadcasting signal, from each output buffer 1341～1344, read the 1st data broadcast packets, the 2nd data broadcast packets selectively according to this judged result, read DII section bag, event message section bag according to the order of priority that data server 18 is notified.
At this, under the frequency band occupation rate of television broadcasting signal was situation below the defined threshold, the 1st multichannel handling part 137 was read DII section bag, event message section bag by predefined fixed ratio from output buffer 1341～1344.In the 1st data broadcast packets and the 2nd data broadcast packets, the high bag of order of priority is read by fixed ratio, simultaneously according to reading secondly the 1st data broadcast packets and the 2nd data broadcast packets of order with the corresponding ratio of above-mentioned frequency band occupation rate, give multichannel portion 135, so, from the bag formation shown in the 135 output map 6A of multichannel portion.
On the other hand, surpass under the situation of defined threshold in the frequency band occupation rate of television broadcasting signal, multichannel handling part 137 is only read expression data broadcast packets, DII section bag, the event message section bag of high order by fixed ratio from a plurality of output buffers 1341～1344.So bag formation from multichannel portion 135 shown in the output map 6B.
Like this, for example can transmit the data of the data broadcast program that incidental order of priority is high on the image scene such as scene of information please or drama, also not influence transmission even the image of television broadcasting signal/sound accompaniment size of code reaches maximum.
Surpass under the situation of defined threshold in above-mentioned frequency band occupation rate, for example deposit the 2nd low data broadcast packets of order of priority in the continuation of insurance of output buffer 1344 relayings.The memory space of this output buffer 1344 is often announced to buffer monitoring unit 136.Buffer monitoring unit 136 monitors the memory space of output buffers 1344, is surpassing under the situation of ormal weight, sends the notice of buffer information to data broadcasting sending part 15, makes it stop to send the 2nd data broadcast packets.
As mentioned above, in above-mentioned the 1st embodiment, utilize the data broadcasting of 133 inputs of bag difference portion to become the 1st data broadcast packets, DII section bag, event message section bag, the 2nd data broadcast packets with data separating, every kind of bag is stored in respectively in the output buffer 1341～1343, utilize buffer monitoring unit 136 to monitor the cumulant of output buffer 1341～1344, and notify multichannel handling part 137.And, when the frequency band occupation rate of the usefulness of televising surpasses defined threshold, from output buffer 1341～1343, read data broadcast packets, DII section bag, the event message section bag of representing high-precedence with multichannel handling part 137 by fixed ratio, give multichannel portion 135, carry out multiplexed with the output of TS multichannel handling part 131, generate and transmit stream (TS), send.
So, when the frequency band change takes place whenever, in data playback, represent the material data of data broadcast program of high-precedence and expression secondly the fault that changes without exception of the material data of the data broadcast program of order can not produce, expression data broadcast packets, DII section bag, the event message section bag of high priority can be carried out multichannel by fixed ratio and television broadcasting signal and modulates, the data broadcast packets of the order of priority of next can change according to the variation of the material size of code of television program, carries out the multichannel modulation with television broadcasting signal.And, surpass under the situation of defined threshold in the frequency band occupation rate of the usefulness of televising, can effectively utilize the limited frequency band in the broadcast band that data broadcasting uses, transmit the data broadcasting data of high-precedence expeditiously.Can guarantee the frequency band of the high data broadcast packets of order of priority, DII section bag and event message section bag all the time, not be subjected to the influence of frequency band change.
Moreover, under the frequency band occupation rate of the usefulness of televising is minimum situation, can in the frequency band that can transmit, send all programs, make the user no matter begin when reception rapidly rating arrive data broadcast program.So can be not as before, the broadcast band of using owing to data broadcasting is that the frequency band of fixing that causes is wasted.Therefore, can carry out changing the optimum data that adapts with frequency band transmits.That is to say, can improve the effective rate of utilization of broadcast band integral body.
Have again, utilize buffer monitoring unit 136 to monitor the cumulant of output buffer 1341～1344 in the frequency band occupation rate that television broadcasting is used above under the state of defined threshold, surpass most under the situation of ormal weight in this accumulation, data broadcast transmission portion 15 is controlled, make it stop to send data broadcast packets.So, needn't be replaced with big capacity buffer to a plurality of output buffers 1341～1344, can correspondingly force down the processing load of multiplexer 13, can use cheap apparatus simultaneously.
In the 2nd embodiment of the present invention, utilize the 2nd multichannel handling part 154 of data broadcasting sending part 15, frequency band occupation rate according to the television broadcasting signal of notifying by multiplexer (MUX) 13, from DII segment buffer 151, event message segment buffer 152, a plurality of data broadcasting service bag buffer 1531～153n, take out bag selectively according to order of priority, be written into laggard line output in the output buffer 155.Therefore, send the data broadcasting service bag on the idle frequency band that can produce in the past, can eliminate the stand-by period at receiver side.
At this, in data broadcasting sending part 15, according to the indication that sends control part (APC) 16 from automatic program with from the establishment information 180 of data server (DS) 18, from DII segment buffer 151, event message segment buffer 152, a plurality of data broadcasting service bag buffer 1531～153n, take out bag selectively by multichannel handling part 154.Simultaneously, come data broadcasting service bag, D11 section bag and the event message section bag of having set high-precedence are written in the output buffer 155 according to predefined fixed ratio by multichannel handling part 154.According to the corresponding variable ratio of frequency band occupation rate the prioritized data broadcast services of next is written in the output buffer 155 simultaneously with television broadcasting signal.
So output buffer 155 sends to the data broadcasting signal of the bag formation shown in Fig. 6 A in the multiplexer (MUX) 13.And, in data broadcasting, according to the regular hour every sending all programs repeatedly, no matter the user is received from when beginning, all can watch rapidly.
On the other hand, the frequency band occupation rate that the 2nd multichannel handling part 154 utilizes MUX transmission signal detecting part 156 to judge television broadcasting signal has surpassed under the situation of defined threshold, from D11 segment buffer 151 and event message section bag 152, take out DII section bag and event message section bag, be written in the output buffer 155, simultaneously, from a plurality of data broadcasting service bag buffer 1531～153n, only take out the data broadcasting service bag set high-precedence, be written in the output buffer 155.
So output buffer 155 sends the data broadcasting signal of the bag formation shown in Fig. 6 B to multiplexer (MUX) 13.Therefore, for example can be transmitted in the data of the high data broadcast program of the order of priority that attached on the image scene of a scene of answer a question program and drama, even the size of code maximum of the image/sound accompaniment of television program does not influence transmission yet.
Then, the 2nd multichannel handling part 154 monitors the announcement information from multiplexer (MUX) 13, is that defined threshold begins to read the data broadcasting service bag beyond the highest preferential position when following once more from a plurality of data broadcasting service bag buffer 1531～153n in the frequency band occupation rate of television broadcasting signal.
As mentioned above, in the 2nd embodiment, when the frequency band occupation rate of the television broadcasting signal of being notified by multiplexer (MUX) 13 surpasses defined threshold, from D11 segment buffer 151 and event message segment buffer 152, take out D11 section bag and event message section bag by multiplexer 154, be written in the output buffer 155, from data broadcasting service bag buffer 1531～153n, only take out the data broadcasting service bag set high-precedence simultaneously, be written in the output buffer 155.
So, can effectively utilize the limited frequency band in the broadcast band that data broadcasting uses, transmit the high data broadcasting data of order of priority expeditiously.And, can guarantee the frequency band of the high data broadcasting service bag of order of priority, D11 section bag and event message section bag all the time, be not subjected to the influence of frequency band change.
Moreover, under the frequency band occupation rate of the usefulness of televising is minimum situation, also can in the frequency band that can transmit, send all programs, make the user no matter begin when reception rapidly rating arrive data broadcast program.So can be not as before, the broadcast band of using owing to data broadcasting is that the frequency band of fixing that causes is wasted.Therefore, can carry out changing the optimum data that adapts with frequency band transmits.
In the above-described embodiments, surpass in the frequency band occupation rate of television broadcasting signal and will send data broadcasting service bag, D11 section bag and the event message section bag of having set high-precedence under the situation of defined threshold.But broadcast singal dispensing device of the present invention for example also can only send data broadcasting service bag and the D11 section bag of having set high-precedence.Have, the use of event message is not to exist with ... content again.And fixed frequency band can be set arbitrarily, also can be often to send order of priority be the 1st, the 2nd, the 3rd data broadcast packets according to setting.
Moreover, in above-mentioned the 1st embodiment, the example that uses 4 output buffers is illustrated, but according to handled data broadcasting data difference, the number of output buffer can be an arbitrary value.Have, in above-mentioned the 1st embodiment, the control signal of own coding multichannel control part 14 be basic since the bag difference portion 133 again, from data broadcasting with isolating the 1st data broadcast packets, the 2nd data broadcast packets, D11 section bag, event message section bag the data.But be not limited only to this, also can be according to the control information bag of data broadcasting with the regulation that is comprised in the data, from data broadcasting with isolating the 1st data broadcast packets, the 2nd data broadcast packets, D11 section bag and event message section bag the data.
In the above-described embodiments, be that object is illustrated with the fixing television broadcasting system that receives service, but also can be applicable to for example use portable receiving terminal towards the broadcast system of moving body or towards the broadcast system of portable receiving terminal.And, also can be applicable to special-purpose gauze and the computer system of utilizing the Internet.
In addition, the control procedure and the content thereof of the kind of the formation of intra-office system, data broadcasting sending part and formation thereof, the data broadcasting sending part when carrying out data broadcasting, the content of data broadcast packets etc. also can be done all changes and implement in the scope that does not break away from main idea of the present invention.
As mentioned above,, then can provide the sort of influence that is not subjected to the broadcast band change, can transmit the program transmission processing unit of the high data broadcasting of order of priority at least expeditiously with data if adopt the present invention.
Claims (18)
1. a program sends processing unit, is used for digit broadcasting system, and this digit broadcasting system sends following 2 kinds of signals according to the control of external control device:
Television broadcasting signal has been assigned with at least a portion frequency band in the regulation broadcast band, and comprises the television broadcasting material information of expression television program material; And
Data broadcasting signal, its be assigned with above-mentioned broadcast band in the different frequency band of above-mentioned television broadcasting signal frequency band, and comprise following information:
A plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively; And
Cycle information wherein comprises the control information relevant with data broadcast program,
Above-mentioned program sends processing unit and has the multiplex machine that carries out above-mentioned data broadcasting signal transmission processing according to the frequency band occupation rate of television broadcasting signal,
It is characterized in that above-mentioned multiplex machine;
The part of the frequency band of above-mentioned data broadcasting signal is set at fixed frequency band, is remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate,
At least a part of data broadcasting material information and the above-mentioned cycle information that are set to high-precedence are assigned on the said fixing frequency band, send as above-mentioned data broadcasting signal,
According to the frequency band occupation rate of above-mentioned television broadcasting signal, a plurality of data broadcasting material information and above-mentioned cycle information are in a preferential order distributed to above-mentioned variable frequency range selectively, send as above-mentioned data broadcasting signal.
2. program as claimed in claim 1 sends processing unit, it is characterized in that above-mentioned multiplex machine,
Judge the frequency band occupation rate of above-mentioned television broadcasting signal,
Frequency band occupation rate at above-mentioned television broadcasting signal surpasses under the situation of defined threshold, above-mentioned a part of data broadcasting material information and the above-mentioned cycle information that is set at high-precedence is assigned on the said fixing frequency band, send as above-mentioned data broadcasting signal
Frequency band occupation rate at above-mentioned television broadcasting signal is lower than under the situation of defined threshold, and above-mentioned a plurality of data broadcasting material information and above-mentioned cycle information in a preferential order selectively are assigned on the above-mentioned variable frequency range, sends as above-mentioned data broadcasting signal.
3. program as claimed in claim 1 or 2 sends processing unit, and it is characterized in that: above-mentioned multiplex machine comprises:
A plurality of input buffers according to the control information of said external control device, are stored above-mentioned a plurality of data broadcasting material information, above-mentioned cycle information;
Output buffer is stored input information, and this input information is exported as above-mentioned data broadcasting signal;
Multiplexing judging part, the frequency band occupation rate of above-mentioned television broadcasting signal is judged in the multiplexing requirement when receiving according to above-mentioned television broadcasting signal and above-mentioned data broadcasting signal, and
Multiplexing processing section, be higher than under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, according to from above-mentioned a plurality of input buffers, reading a part of data broadcasting material information and the above-mentioned cycle information that is set to high-precedence with the corresponding ratio of said fixing frequency band, and store in the above-mentioned output buffer, be lower than under the situation of defined threshold in above-mentioned frequency band occupation rate, from above-mentioned a plurality of input buffers, in a preferential order read above-mentioned a plurality of data broadcasting material information and above-mentioned cycle information selectively, store in the above-mentioned output buffer.
4. a program sends processing unit, is used for digit broadcasting system, and this digit broadcasting system sends following signal according to the control of external control device:
Television broadcasting signal has been assigned with at least a portion frequency band in the regulation broadcast band, and comprises the television broadcasting material information of expression television program material; And
Data broadcasting signal, be assigned with above-mentioned broadcast band in the different frequency band of television broadcasting signal frequency band, and comprise following information:
A plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively;
Cycle information wherein comprises the control information relevant with data broadcast program, and
Event message information, comprising other additional informations,
Above-mentioned program sends processing unit and has the multiplex machine that carries out above-mentioned data broadcasting signal transmission processing according to the frequency band occupation rate of television broadcasting signal,
It is characterized in that above-mentioned multiplex machine
The part of the frequency band of above-mentioned data broadcasting signal is set at fixed frequency band, is remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate,
At least a part of data broadcasting material information, above-mentioned cycle information and the above-mentioned event message information distribution that are set to high-precedence to the said fixing frequency band, send as above-mentioned data broadcasting signal,
According to the frequency band occupation rate of above-mentioned television broadcasting signal, a plurality of data broadcasting material information, above-mentioned cycle information and above-mentioned event message information are in a preferential order distributed to above-mentioned variable frequency range selectively, send as above-mentioned data broadcasting signal.
5. program as claimed in claim 4 sends processing unit, it is characterized in that above-mentioned multiplex machine
Judge the frequency band occupation rate of above-mentioned television broadcasting signal,
Frequency band occupation rate at above-mentioned television broadcasting signal surpasses under the situation of defined threshold, above-mentioned a part of data broadcasting material information, above-mentioned cycle information and the above-mentioned event message information distribution of high-precedence of being set to the said fixing frequency band, send as above-mentioned data broadcasting signal
Frequency band occupation rate at above-mentioned television broadcasting signal is lower than under the situation of defined threshold, above-mentioned a plurality of data broadcasting material information, above-mentioned cycle information and above-mentioned event message information in a preferential order selectively are assigned on the above-mentioned variable frequency range, send as above-mentioned data broadcasting signal.
6. program as claimed in claim 4 sends processing unit, and it is characterized in that: above-mentioned multiplex machine comprises:
A plurality of input buffers according to the control information of said external control device, are stored above-mentioned a plurality of data broadcasting material information, above-mentioned cycle information and above-mentioned event message information;
Output buffer is stored input information, and this input information is exported as above-mentioned data broadcasting signal;
Multiplexing judging part, the frequency band occupation rate of above-mentioned television broadcasting signal is judged in the multiplexing requirement when receiving according to above-mentioned television broadcasting signal and above-mentioned data broadcasting signal, and
Multiplexing processing section, be higher than under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, according to from above-mentioned a plurality of input buffers, reading a part of data broadcasting material information that is set to high-precedence with the corresponding ratio of said fixing frequency band, above-mentioned cycle information and above-mentioned event message information, and store in the above-mentioned output buffer, be lower than under the situation of defined threshold in above-mentioned frequency band occupation rate, from above-mentioned a plurality of input buffers, in a preferential order read above-mentioned a plurality of data broadcasting material information selectively, above-mentioned cycle information and above-mentioned event message information store in the above-mentioned output buffer.
7. a digital broadcast signal multichannel dispensing device is used for digit broadcasting system, and this digit broadcasting system sends following signal according to the control of external control device:
Television broadcasting signal has been assigned with at least a portion frequency band in the regulation broadcast band, and comprises the television broadcasting material information of expression television program material; And
The data broadcasting signal of pack arrangement, be assigned with above-mentioned broadcast band in the different frequency band of television broadcasting signal frequency band, and comprise following information:
A plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively; And
Cycle information wherein comprises the control information relevant with above-mentioned data broadcast program,
This digital broadcast signal multichannel dispensing device according to the frequency band occupation rate of above-mentioned television broadcasting signal, is modulated to above-mentioned data broadcasting signal selectively on the above-mentioned television broadcasting signal and sends, and it is characterized in that comprising:
Separator is separated into a plurality of data broadcasting material information and cycle information to the above-mentioned data broadcasting signal that is transfused to;
A plurality of buffers are stored a plurality of data broadcasting material information, cycle information after being separated by this separator respectively by the bag of information category and regulation;
Multiplexing judging part, the frequency band occupation rate of above-mentioned television broadcasting signal is judged in the multiplexing requirement when receiving according to above-mentioned television broadcasting signal and above-mentioned data broadcasting signal, and
Multiplex processor is multiplexed into the output of above-mentioned a plurality of buffers on the above-mentioned television broadcasting signal selectively,
Above-mentioned multiplex processor,
The part of the frequency band of above-mentioned data broadcasting signal is set at fixed frequency band, is remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate,
Be higher than under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, according to from above-mentioned a plurality of buffers, reading a part of data broadcasting material information and the above-mentioned cycle information that is set to high-precedence with the corresponding ratio of said fixing frequency band, be multiplexed on the above-mentioned television broadcasting signal
Be lower than under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, from above-mentioned a plurality of buffers, in a preferential order read above-mentioned a plurality of data broadcasting material information and above-mentioned cycle information selectively, be multiplexed on the above-mentioned television broadcasting signal.
8. digital broadcast signal multichannel dispensing device as claimed in claim 7 is characterized in that: above-mentioned separator has the function of carrying out above-mentioned data broadcasting signal separation under the control of said external control device.
9. digital broadcast signal multichannel dispensing device as claimed in claim 7 is characterized in that: above-mentioned separator has the function of carrying out above-mentioned data broadcasting signal separation according to the provisioning information bag that is comprised in the above-mentioned data broadcasting signal.
10. a digital broadcast signal multichannel dispensing device is used for digit broadcasting system, and this digit broadcasting system sends following signal according to the control of external control device:
Television broadcasting signal has been assigned with at least a portion frequency band in the regulation broadcast band, and comprises the television broadcasting material information of expression television program material; And
The data broadcasting signal of pack arrangement, be assigned with broadcast band in the different frequency band of television broadcasting signal frequency band, and comprise following information:
A plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively; And
Cycle information wherein comprises the control information relevant with above-mentioned data broadcast program,
This digital broadcast signal multichannel dispensing device, the frequency band occupation rate according to television broadcasting signal is multiplexed into above-mentioned data broadcasting signal on the above-mentioned television broadcasting signal selectively, sends, and it is characterized in that comprising:
Separator is separated into a plurality of data broadcasting material information and cycle information to the data broadcasting signal that is transfused to;
A plurality of buffers are stored a plurality of data broadcasting material information, cycle information after being separated by this separator respectively by the bag of information category and regulation;
Multiplexing judging part, the frequency band occupation rate of above-mentioned television broadcasting signal is judged in the multiplexing requirement when receiving according to above-mentioned television broadcasting signal and above-mentioned data broadcasting signal,
The multichannel processor is multiplexed into the output of above-mentioned a plurality of buffers on the television broadcasting signal selectively; And
The buffer monitoring arrangement monitors a plurality of data broadcasting material information that are stored in above-mentioned a plurality of buffer, each storage capacity of wrapping of cycle information;
Above-mentioned multiplex processor,
The part of the frequency band of above-mentioned data broadcasting signal is set at fixed frequency band, is remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate,
Surpass under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, according to from above-mentioned a plurality of buffers, reading a part of data broadcasting material information and the above-mentioned cycle information that is set to high-precedence with the corresponding ratio of said fixing frequency band, be multiplexed on the above-mentioned television broadcasting signal
Surpass under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, and the storage capacity at above-mentioned a plurality of buffers that above-mentioned buffer monitoring arrangement monitors surpasses under the situation of setting, stops the input of above-mentioned a plurality of data broadcasting material information and above-mentioned cycle information.
11. digital broadcast signal multichannel dispensing device as claimed in claim 10 is characterized in that: above-mentioned separator has the function of carrying out above-mentioned data broadcasting signal separation under the control of said external control device.
12. digital broadcast signal multichannel dispensing device as claimed in claim 10 is characterized in that: above-mentioned separator has the function of carrying out above-mentioned data broadcasting signal separation according to the provisioning information bag that is comprised in the above-mentioned data broadcasting signal.
13. a digital broadcast signal multichannel dispensing device is used for digit broadcasting system,
This digit broadcasting system sends following signal according to the control of external control device:
Television broadcasting signal has been assigned with at least a portion frequency band in the regulation broadcast band, and comprises the television broadcasting material information of expression television program material; And
The data broadcasting signal of pack arrangement, be assigned with broadcast band in the different frequency band of television broadcasting signal frequency band, and comprise following information:
A plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively;
Cycle information wherein comprises the control information relevant with above-mentioned data broadcast program;
And
Event message information, comprising other additional informations,
This digital broadcast signal multichannel dispensing device is according to the frequency band occupation rate of television broadcasting signal, above-mentioned data broadcasting signal is modulated on the above-mentioned television broadcasting signal selectively send, and it is characterized in that comprising:
Separator is separated into a plurality of data broadcasting material information, cycle information and event message information to the data broadcasting signal that is transfused to;
A plurality of buffers are stored a plurality of data broadcasting material information, cycle information and event message information after being separated by this separator respectively by the bag of information category and regulation;
Multiplexing judging part, the frequency band occupation rate of above-mentioned television broadcasting signal is judged in the multiplexing requirement when receiving according to above-mentioned television broadcasting signal and above-mentioned data broadcasting signal; And
Multiplexer is modulated to the output of above-mentioned a plurality of buffers on the above-mentioned television broadcasting signal selectively,
Above-mentioned multiplexer
The part of the frequency band of above-mentioned data broadcasting signal is set at fixed frequency band, is remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate,
Surpass under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, according to from above-mentioned a plurality of buffers, reading data broadcasting material information, above-mentioned cycle information and the above-mentioned event message information that is set to above-mentioned high-precedence with the corresponding ratio of said fixing frequency band, be multiplexed on the above-mentioned television broadcasting signal
Be lower than under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, from above-mentioned a plurality of input buffers, in a preferential order read above-mentioned a plurality of data broadcasting material information, above-mentioned cycle information and above-mentioned event message information selectively, be multiplexed on the above-mentioned television broadcasting signal.
14. digital broadcast signal multichannel dispensing device as claimed in claim 13 is characterized in that: above-mentioned separator has the function of carrying out above-mentioned data broadcasting signal separation under the control of said external control device.
15. digital broadcast signal multichannel dispensing device as claimed in claim 13 is characterized in that: above-mentioned separator has the function of carrying out above-mentioned data broadcasting signal separation according to the provisioning information bag that is comprised in the above-mentioned data broadcasting signal.
16. a digital broadcast signal multichannel dispensing device is used for digit broadcasting system, this digit broadcasting system sends following signal according to the control of external control device:
Television broadcasting signal has been assigned with at least a portion frequency band in the regulation broadcast band, and comprises the television broadcasting material information of expression television program material; And
The data broadcasting signal of pack arrangement, be assigned with broadcast band in the different frequency band of television broadcasting signal frequency band, and comprise following information:
A plurality of data broadcasting material information, the material of expression data broadcast program, and set order of priority respectively;
Cycle information wherein comprises the control information relevant with above-mentioned data broadcast program; And
Event message information, comprising other additional informations,
This digital broadcast signal multichannel dispensing device according to the frequency band occupation rate of television broadcasting signal, is modulated to above-mentioned data broadcasting signal selectively on the above-mentioned television broadcasting signal and sends, and it is characterized in that comprising:
Separator is separated into a plurality of data broadcasting material information and cycle information and event message information to the data broadcasting signal that is transfused to;
A plurality of buffers are stored a plurality of data broadcasting material information, cycle information and event message information after being separated by this separator respectively by the bag of information category and regulation;
Multiplexing judging part, the frequency band occupation rate of above-mentioned television broadcasting signal is judged in the multiplexing requirement when receiving according to above-mentioned television broadcasting signal and above-mentioned data broadcasting signal;
Multiplexer is modulated to the output of these a plurality of buffers on the television broadcasting signal selectively; And
The buffer monitoring arrangement monitors each storage capacity of wrapping that is stored in a plurality of buffers interior above-mentioned a plurality of data broadcasting material information, cycle information and event message information;
Above-mentioned multiplex processor,
The part of the frequency band of above-mentioned data broadcasting signal is set at fixed frequency band, is remaining band setting and the corresponding variable frequency range of above-mentioned television broadcasting signal frequency band occupation rate,
Surpass under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, according to from above-mentioned a plurality of buffers, reading a part of data broadcasting material information, above-mentioned cycle information and the above-mentioned event message information that is set to high-precedence with the corresponding ratio of said fixing frequency band, be multiplexed on the above-mentioned television broadcasting signal
Surpass under the situation of defined threshold in the above-mentioned frequency band occupation rate of above-mentioned multiplexing judgement section judges, and the storage capacity at above-mentioned a plurality of buffers that above-mentioned buffer monitoring arrangement monitors surpasses under the situation of setting, stops the input of above-mentioned a plurality of data broadcasting material information, above-mentioned cycle information and above-mentioned event message information.
17. digital broadcast signal multichannel dispensing device as claimed in claim 16 is characterized in that: above-mentioned separator has the function of carrying out above-mentioned data broadcasting signal separation under the control of said external control device.
18. digital broadcast signal multichannel dispensing device as claimed in claim 16 is characterized in that: above-mentioned separator has the function of carrying out above-mentioned data broadcasting signal separation according to the provisioning information bag that is comprised in the above-mentioned data broadcasting signal.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001258396A JP4282256B2 (en) | 2001-08-28 | 2001-08-28 | Digital broadcast signal multiplex transmission device |
| JP258396/2001 | 2001-08-28 | ||
| JP2001270574A JP4246935B2 (en) | 2001-09-06 | 2001-09-06 | Program transmission processing device |
| JP270574/2001 | 2001-09-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1402548A CN1402548A (en) | 2003-03-12 |
| CN1270531C true CN1270531C (en) | 2006-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02142294XA Expired - Fee Related CN1270531C (en) | 2001-08-28 | 2002-08-28 | Digital broadcast signal sending device |
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| Country | Link |
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| KR (1) | KR100454782B1 (en) |
| CN (1) | CN1270531C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100539886B1 (en) * | 2004-09-10 | 2005-12-28 | 삼성전자주식회사 | Digital broadcasting reception apparatus and method therefor |
| KR100735312B1 (en) * | 2006-02-14 | 2007-07-04 | 삼성전자주식회사 | Method for processing data in a terminal with digital broadcasting receiver |
-
2002
- 2002-08-23 KR KR10-2002-0050001A patent/KR100454782B1/en not_active IP Right Cessation
- 2002-08-28 CN CNB02142294XA patent/CN1270531C/en not_active Expired - Fee Related
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| KR20030019893A (en) | 2003-03-07 |
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| CN1402548A (en) | 2003-03-12 |
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