CN101222282A - Method and apparatus for the conversion of an arbitrary eti signal in an eti signal with dab-mode 3 - Google Patents
Method and apparatus for the conversion of an arbitrary eti signal in an eti signal with dab-mode 3 Download PDFInfo
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- CN101222282A CN101222282A CNA2007101608368A CN200710160836A CN101222282A CN 101222282 A CN101222282 A CN 101222282A CN A2007101608368 A CNA2007101608368 A CN A2007101608368A CN 200710160836 A CN200710160836 A CN 200710160836A CN 101222282 A CN101222282 A CN 101222282A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 19
- 102100029526 rRNA 2'-O-methyltransferase fibrillarin Human genes 0.000 claims description 36
- 239000000945 filler Substances 0.000 claims description 7
- 101000988229 Homo sapiens Protocadherin gamma-A12 Proteins 0.000 claims description 6
- 101000602015 Homo sapiens Protocadherin gamma-B4 Proteins 0.000 claims description 6
- 102100029264 Protocadherin gamma-A12 Human genes 0.000 claims description 6
- 102100037554 Protocadherin gamma-B4 Human genes 0.000 claims description 6
- 101001072237 Homo sapiens Protocadherin-16 Proteins 0.000 claims description 5
- 230000008520 organization Effects 0.000 claims 1
- 230000000295 complement effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 230000005236 sound signal Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 3
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- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/95—Arrangements characterised by the broadcast information itself characterised by a specific format, e.g. MP3 (MPEG-1 Audio Layer 3)
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
- H03M13/09—Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
- H04H60/07—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information characterised by processes or methods for the generation
Abstract
The present invention discloses a method and an apparatus for the conversion of an arbitrary ETI signal in an ETI signal with DAB-mode 3. In order to transmit digital radio signal, it must to build an ETI signal with correct DAB mode. At present, the ETI signal can only transfer among DAB-mode 1, 2 and 4, which have three information blocks (FIB) per time unit. But the DAB-mode 3 has four information block per time unit. In order to converse the ETI signal with DAB-mode 3, the present invention advises to complement a fourth information block (30) to the three information blocks of the ETI signal. The fourth information block is mute FIB, so as to meet the format of the DAB-mode 3. Alternatively, the fourth information block can cope or use one or more usable information groups (FIG) of some one information block.
Description
Technical field
The present invention relates to according to claim 1 and 7 to be used for any ETI signal, as the ETI conversion of signals with DAB pattern 1,2 or 4 be the method and apparatus with ETI signal of DAB mode 3.
Background technology
Known, at DAB (Digital Audio Broadcasting, digital audio broadcasting) launches digitized data flow from transmitting set in the audio wireless electric system, and decode and be converted to the signal (information) that to hear by corresponding radio receiver (broadcast receiver).Have the possibility that also transmits digitized data flow except this signal that can hear in addition in addition, the information of this data flow will output on the display of radio receiver.Corresponding service supplier produces data flow, this set of streams be combined into DAB multiplexed, be so-called ensemble (Ensemble) and at corresponding FIC channel (Fast Information Channel, fast information channel in dab receiver) and corresponding M SC channel (Main Service Channel, main service channel) upward sends dispensing device (transmitting set) to by ETI (Ensemble Transport Interface, ensemble coffret) interface.
Recipient, except voice signal, also the data, services that comprises in the ensemble (ETI data flow) is decoded and for extraneous used, but needn't change receive frequency such as auto radio.Data, services is combined into service packet and distributes to subchannel.Only need the identical information of disposable transmission thus, for example by a plurality of transmitting sets transport information that service provides as additional data.However be re-assigned in each subchannel in order to be included in the information of DAB in multiplexed, the additional information by its data that provide also is provided each service supplier.This additional information transmits by the FIC channel equally.Therefore in the FIC channel, can transmit data, services arbitrarily, especially reflector name, optional frequency, program mark, transport information etc.
For the DAB test macro, for example also store as preserving thing usually with 1,2 or 4 pairs of data codings of DAB pattern.But, therefore need be converted to the DAB mode 3 because the data of being stored should irrespectively be sent by identical dispensing device with its coding.Data transaction in DAB pattern 1,2 or 4 seldom goes wrong, because these mode configurations are similar.But problematic is these data will be converted to mode 3.The data of storing with DAB pattern 1,2 or 4 and the difference of DAB mode 3 are that each chronomere can transmit 3 block of information FlB (FastInformation Block, FIB), and wherein each block of information FIB comprises 256.For the DAB mode 3, require each chronomere to transmit 4 block of information FIB on the contrary.Because the quantity difference of block of information FIB can only be carried out conversion of signals at present, but can not be transformed into the DAB mode 3 between DAB pattern 1,2 or 4.
In addition, DE102005 023091A1 discloses the apparatus and method that are used to receive and export radio signal.It proposes a kind of device that especially can receive and export the DAB radio signal.This device has input unit, utilizes this input unit can receive digital radio signals from reception antenna.Have computing unit in addition, utilize this computing unit that the digital radio signals that receives is divided into audio signal and additional signal and conversion.Then will export by voice-grade channel as simulated audio signal through the audio signal of conversion.Additional signal through conversion is decoded by the RDS encoder, this RDS encoder output simulation additional signal.This device also has the modulator that is used to receive simulated audio signal and simulation additional signal in addition.This modulator will be simulated additional signal and will be modulated in the simulated audio signal, produce the FM signal of simulation thus.The simulation FM signal that is produced sends the analog radio receiver to.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method and a kind of device, utilizes them any ETI conversion of signals can be arrived the DAB mode 3.This technical problem is solved by the feature of claim 1 arranged side by side and 7.
Have claim 1 and 7 to be used for any ETI conversion of signals be the method and apparatus with ETI signal of DAB mode 3, produce following advantage: the ETI data that existed, the ETI data that for example have DAB pattern 1,2 or 4 can be converted to ETI data or the ETI data flow with DAB mode 3, and can unify thus to use.These data for example can be changed in dispensing device, send as ETI data flow DAB mode 3 then.In receiving equipment, can and use then, and not need to consider the data format of original ETI data this ETI data flow DAB mode 3 decoding.In each receiving equipment, need not any other reprocessing thus and just can demodulate ETI data and output arbitrarily.According to the present invention, be performed such to the conversion of DAB mode 3 signal, promptly each chronomere adds the 4th block of information to any ETI signal with 3 block of informations.The 4th block of information is embodied as mute FIB at this.
Measure by describing in the dependent claims is given in the preferred development and the improvement of the method and apparatus that provides in claim 1 arranged side by side and 7.Particularly advantageous is that described the 4th block of information has " end mark " field in its beginning.The decoding device that guarantees receiving equipment by this " end mark " field needn't be analyzed significant data in the 4th block of information.
Another aspect of the present invention is that described the 4th block of information is filled with filler, to reach desired 256 bit lengths of this block of information after " end mark " field finishes.
In another preferred implementation of the present invention, when the 4th end of block, carry out redundancy check.In this redundancy check, utilize 16 bit data word of predetermined algorithm cycle calculations about the content of the 4th block of information.
In other execution mode of the present invention, one or more useful information groups are set in the 4th block of information replace filler.This information sets can be duplicated from the out of Memory piece, distributes to the 4th block of information then.At least one useful information group is arranged on before " end mark " field of the 4th block of information.For example, can be with the subchannel tissue as in block copy to the four block of informations.The bandwidth that has produced DAB mode 3 signal thus is used to transmit the advantage of data better.
According to dependent claims 10, described being used for is connected the device that any ETI conversion of signals is a DAB signal mode 3 with dispensing device.This dispensing device is used to send the ETI data flow with DAB mode 3 coding, and sends corresponding ETI data flow, and this ETI data flow will be received the decode by the DAB radio receiver.
Description of drawings
Embodiments of the invention are shown in the drawings and obtain below describing in detail.
Fig. 1 to be illustrating the ETI signal of the disclosed DAB of the having pattern 2 of the technology of having,
Fig. 2 illustrates the configuration at ETI signal DAB mode 3 of the present invention with schematic diagram,
Fig. 3 illustrates embodiments of the invention at the 4th block of information with schematic diagram,
Fig. 4 illustrates another embodiment of the present invention at the structure of the 4th block of information with schematic diagram,
Fig. 5 illustrates the present invention's device that to be used for any ETI conversion of signals be DAB mode 3 signal with structured flowchart.
Embodiment
At first in order to understand the present invention better to illustrate out the structure of known DAB (digital audio broadcasting) the ETI signal with transmission frame 10, this defines in EUROPEANSTANDARD (telecommunications series) ETSI EN300 401 V1.4.1 (2006-01) in Fig. 1.Synchronizing channel Synchr Ch, fast information channel in dab receiver FIC and main service channel MSC are set in the transmission frame 10 of ETI signal.
Synchronizing channel Synchr Ch is used for basic demodulation, and it is synchronous to be particularly useful for transmission frame, is used for the FREQUENCY CONTROL of automation, is used for determining channel status and is used as the transmission sign.
In fast information channel in dab receiver FIC, nearly 12 FIB FIB are set according to selected transmission mode (DAB pattern).For example the transmission frame with 96ms is provided with 12 FIB pieces altogether in DAB pattern 1, transmission frame with 24ms in DAB pattern 2 is provided with 3 FIB pieces, transmission frame with 24ms in the DAB mode 3 is provided with 4 FIB pieces, and the transmission frame with 48ms in DAB pattern 4 is provided with 6 FIB pieces.
Main service channel MSC is used for multiplexed function, time function, data function and other basic function.
The present invention relates to any ETI signal, as the ETI conversion of signals with DAB pattern 1,2 or 4 is the method and apparatus with ETI signal of DAB mode 3.
It can also be seen that from Fig. 1 each block of information FIB1, FIB2, FIB3 have 256 block length.In this block length a plurality of information sets FIG can be set, wherein each information sets FIG has a title division and a data field.
On fast information channel in dab receiver FIC, transmission speed and transfer rate are lower.According to the DAB pattern each block of information FIB is distributed to the so-called general interlacing frames CIF (Common Interleaved Frame) that transmits in main service channel MSC, wherein distribute 3 block of information FIB to each CIF frame.
As mentioned above, therefore DAB pattern 1,2 or 4 can be divided into the group that each has 3 block of information FIB.These DAB patterns can be changed mutually thus.
For the DAB mode 3, need 4 block of information FIB on the contrary.In order to be transformed into the DAB mode 3, the ETI signal especially when being converted to the ETI signal with DAB mode 3, DAB pattern 1,2 or 4 is being added the 4th block of information 30 according to the present invention's suggestion.The 4th block of information 30 is called mute FIB.Describe this conversion in detail by Fig. 2 below.
ETI signal shown in Figure 1 is shown in Figure 2 to the conversion of DAB mode 3 from DAB pattern 2.As can be seen from Figure 2, the 4th block of information 30 that comprises 3 block of information FIB1, FIB2, FIB3 and be called mute FIB of the new ETI signal in the DAB mode 3 after the conversion.Produce ETI signal DAB mode 3 through conversion by this configuration thus, this signal is from any ETI signal, especially has the ETI signal of DAB pattern 1,2 or 4 and produce.Correspondingly mate the data in synchronizing channel Synchr Ch and main service channel MSC, with guarantee with DAB pattern 2 in original ETI signal accurately corresponding.Block of information 30 is mainly used in the structure that produces the standard ETI signal under the DAB mode 3 thus.Therefore utilize conversion of the present invention, can satisfy the requirement of in EUROPEAN STANDARD, determining by very simple mode to the ETI signal of DAB mode 3.
In another embodiment of the present invention, according to top ETI signal with DAB pattern 2 be the similar mode that example is described, can utilize method of the present invention with any ETI signal by dividing or adding the ETI signal that the FIB piece is converted to the DAB mode 3.
For DAB pattern 1 signal, 12 FIB pieces are assigned among 4 fast information channel in dab receiver FIC, each fast information channel in dab receiver FIC has 3 FIB pieces, and adds a mute piece respectively, makes that each information channel FIC comprises 4 FIB pieces concerning each new ETI signal of DAB mode 3.
For DAB pattern 4 signals, 6 FIB pieces are assigned among two fast information channel in dab receiver FIC, each fast information channel in dab receiver FIC has 3 FIB pieces, and adds a mute piece respectively, makes that each information channel FIC comprises 4 FIB pieces concerning each new ETI signal of DAB mode 3.
The detailed structure of the 4th block of information 30 (mute FIB) is shown with schematic diagram in Fig. 3.
For the 4th block of information 30, when these block of information 30 beginnings, give " end mark " 31 to the block end field." end mark " field 31 for example uses " 1 " to fill.Because the 4th block of information 30 and the normal the same data field that all has 256 of block of information FIB, so the remaining data field of this block of information 30 is filled by filler.Filler is interpreted as filling up data field with the data or the useful data that can not use.Use " 0 " to fill up this data field in this case.
End in the 4th block of information 30 is carried out redundancy check CRC (Cyclical Redundancy Check) according to pre-defined algorithm, has desired 256 to guarantee the 4th block of information 30.
Therefore according to forming the structure of the 4th block of information 30 with the identical outline of in related standards, stipulating at all block of information FIB.
By the method for the present invention, successfully launch ETI signal arbitrarily with identical dispensing device in an advantageous manner with any ETI conversion of signals ETI signal that is the DAB mode 3.
The replacement solution of the 4th block of information 30 shown in Figure 4.Opposite with the embodiment of the invention of Fig. 3, copy one or more information sets FIGs from block of information FIB of front such as block of information FIB1, FIB2 or FIB3 at this during in the beginning of the 4th block of information 30.As can be seen from Figure 4, two information sets FIG with flag F IG1 and FIG2 are arranged on the beginning of the 4th block of information 30.Information sets FIG1 and FIG2 comprise useful information, as about the data of the tissue of subchannel, about explanation or other any information of data type.Give " end mark " 31 when in the end an information sets FIG2 finishes, wherein give " 1 " accordingly.If the 4th block of information 30 also comprises idle field in 256 long data fields, then according to filling up this spare field by filler 32 with " 0 " with the similar mode of describing at Fig. 3.Carry out redundancy check 33 according to Fig. 3 with the CRC algorithm after this spare field, wherein crc field is included in 256 long data fields of the 4th block of information 30.
By fill the 4th block of information 30 with the useful data of information sets FIG, advantageously utilized the bandwidth of DAB transmission channel better.Can transmit the more data of multiple digitalization thus.
Showed that in practice the receptivity of DAB receiver may be subjected to the strong influence of DAB pattern.Therefore the existing sound preservation thing that is stored under other DAB pattern should be converted into the ETI data flow with DAB mode 3, covers thereby reach higher sample thus.Because only could transmit 4 block of information FIB in the chronomere at 24ms under the DAB mode 3.
With schematic diagram the present invention being shown in Fig. 5, to be used for any ETI conversion of signals be the device 40 with ETI signal of DAB mode 3.ETI data flow with DAB pattern 1,2 or 4 is provided in piece 41.Similar with the demonstration among Fig. 1, suppose and should transmit the ETI data that provide according to the DAB mode 3.These data are converted into the DAB mode 3 according to top as described in Fig. 2 to Fig. 4 in piece 42.In piece 43, produce ETI data flow then through the DAB mode 3 of conversion.Then in piece 44, this DAB mode 3 data flow is modulated.Conduct to dispensing device 45 and launch through the data flow of ovennodulation then, thereby this data flow can be received by the DAB radio receiver.
Claims (10)
- One kind to be used for any ETI signal, as the ETI conversion of signals with DAB pattern 1,2 or 4 be the method with ETI signal of DAB mode 3, ETI signal per time unit wherein to be converted has 3 block of informations (FIB) that length is respectively 256, the ETI signal per time unit of the DAB mode 3 of process conversion has 4 block of informations, it is characterized in thatIn order to form the ETI signal of DAB mode 3, described 3 block of informations (FIB1, FIB2 FIB3) add the 4th block of information (30) afterwards,The 4th block of information (30) preferably is embodied as mute FIB.
- 2. method according to claim 1 is characterized in that, described the 4th block of information (30) has " end mark " field (31) in its beginning.
- 3. method according to claim 2 is characterized in that, described the 4th block of information (30) is filled with filler after " end mark " field (31) finishes, up to reach described the 4th block of information (30) comprise 256 of crc field till.
- 4. according to one of aforesaid right requirement described method, it is characterized in that, at the terminal redundancy check (CRC) of carrying out of described the 4th block of information (30).
- 5. one of require described method according to aforesaid right, it is characterized in that, duplicate before or at least one information sets (FIG) of another block of information of typing (FIB) in " end mark " field (31) of described the 4th block of information (30).
- 6. method according to claim 5 is characterized in that, as information sets to be duplicated replicon channel organization for example.
- 7. a use is the device with ETI signal of DAB mode 3 according to one of aforesaid right requirement described method with any ETI signal, as the ETI conversion of signals with DAB pattern 1,2 or 4, it is characterized in that, described device (40) constitutes, to 3 the block of information (FIB1s of each chronomere at the ETI signal of DAB pattern to be converted 1,2 or 4, FIB2, FIB3) add the 4th block of information (30) afterwards, and the 4th block of information (30) preferably is embodied as mute FIB.
- 8. device according to claim 7 is characterized in that, described the 4th block of information (30) has " end mark " field (31), and the remainder of described the 4th block of information (30) is filled with filler.
- 9. according to claim 7 or 8 described devices, it is characterized in that add at least one information sets (FIG) before in described " end mark " field (31), wherein said at least one information sets (FIG) is duplicated from information available piece (FIB).
- 10. according to each described device in the claim 7 to 9, it is characterized in that, described device has ETI interface (40), described ETI interface (40) is connected with dispensing device (45), and described dispensing device (45) is configured to launch the ETI data flow of DAB mode 3 to be used to receive this DAB radio.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006061678.2 | 2006-12-28 | ||
| DE102006061678 | 2006-12-28 | ||
| DE102007025618.5 | 2007-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101222282A true CN101222282A (en) | 2008-07-16 |
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ID=39587429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101608368A Pending CN101222282A (en) | 2006-12-28 | 2007-12-27 | Method and apparatus for the conversion of an arbitrary eti signal in an eti signal with dab-mode 3 |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20080063185A (en) |
| CN (1) | CN101222282A (en) |
| DE (1) | DE102007025618A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11537560B2 (en) | 2019-07-11 | 2022-12-27 | Samsung Electronics Co., Ltd. | Markers for hash code calculations on occupied portions of data blocks |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005023091A1 (en) | 2005-05-13 | 2006-11-16 | Dr. Stefan Ludewig und Johannes von Weyssenhof GbR, Vertretungsberechtigter Gesellschafter Dr. Stefan Ludewig, 30169 Hannover | Device for receiving, outputting radio signals for mobile subscribers has computer for dividing/converting input signals into audio, auxiliary signals, outputting audio analog signals via audio channel, auxiliary signals to RDS decoder |
-
2007
- 2007-06-01 DE DE102007025618A patent/DE102007025618A1/en not_active Ceased
- 2007-12-27 CN CNA2007101608368A patent/CN101222282A/en active Pending
- 2007-12-28 KR KR1020070140151A patent/KR20080063185A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007025618A1 (en) | 2008-08-07 |
| KR20080063185A (en) | 2008-07-03 |
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Open date: 20080716 |