CN101103553A - Program diversity - Google Patents
Program diversity Download PDFInfo
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- CN101103553A CN101103553A CNA2005800468241A CN200580046824A CN101103553A CN 101103553 A CN101103553 A CN 101103553A CN A2005800468241 A CNA2005800468241 A CN A2005800468241A CN 200580046824 A CN200580046824 A CN 200580046824A CN 101103553 A CN101103553 A CN 101103553A
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Abstract
A method for receiving high frequency signals, wherein several receiver antennas receive said signals and transmit the signals of one antenna to a receiver, representing a selectable program content. It is possible to select at least one other antenna which receives signals with the same program content but with better signal properties. According to the invention, the signals received by at least one antenna are examined for the data content thereof and it is possible to switch from one signal received by an antenna to another signal received by an antenna if the data content of one signal corresponds to the data content of the other signal or if, when the signals received by at least two antennas are examined for the data content thereof, it is possible to switch to another signal received by another antenna if the data content of the signal that is received by one antenna corresponds to the data content of the other signal received by another antenna.
Description
The present invention relates to the method and apparatus that is used for receiving high-frequency signal by an antenna or a plurality of antenna as feature as described in the independent claims preamble.
Be used for moving the reception high-frequency signal, the deversity scheme and the diversity apparatus that receive in particular for signal in the automobile are known.Receiving when particularly containing the high frequency analog signals of TV programme, is adopting a diversity receiver can when TV programme of reception, automatically have between the different frequency of same programme content (same transmit machine) and switch.This method of reseptance makes and can omnidistancely receive and follow the trail of a TV programme when automobile travels by different emitter regions, wherein in an emitter region, there is a transmitter, it is with certain characteristic frequency emission TV programme, and the frequency of an emitter region is different with the tranmitting frequency of one or more other emitter regions.This method, wherein receiver can receive the emission of same transmitter on a certain characteristic frequency, and can receive the emission on other frequencies of different emitter regions, is known, and is called as frequency diversity.If automobile leaves an emitter region, a certain transmitter is with certain characteristic frequency emission in this emitter region, then receptivity descends, this causes from an emitter region signal quality of another emitter region when the transition of another emitter region to improve, thereby as criterion, no longer receive the emission on the frequency of emitter region, front, make emission on the better frequency of receptivity but receive another.This means that receiving the transfer criterion with same program content from a tranmitting frequency to another tranmitting frequency from an emitter region during to the transition of another emitter region be signal quality.
Except the simulation reception of the transmission of analog television program and the program that sends, also send high-frequency digital signal especially in Europe, it is received by the receiver of respective design.The numeral high-frequency signal is equally by the transmitter emission that is positioned at an emitter region, thereby when receiving these high-frequency digital signals in the reception that also requires to keep these (having same program content) emissions from an emitter region during to the transition of another emitter region, but from receiving an emission, up to the present receiving it transmits, switch to and receive another emission, should receive this now and transmit.When switching to next digital transmission, a digital transmission also using " signal quality " standard as transfer criterion.Also available in addition other criterion is as error rate (bit error rate).
Except a launching simulation high-frequency signal wherein or only launch the emitter region of digital high-frequency signal, the emitter region switching that is caused by running car also following situation can occur: promptly switch to the emitter region of a numeral from the emitter region of a simulation, and perhaps inverted.
The object of the present invention is to provide the method and apparatus that is used for receiving high-frequency signal, wherein when switch another emitter region, keeping real-time program receiving content, and described switching rapidly and do not carried out with perceiveing from an emitter region at automobile.
Above-mentioned task is finished by the feature of independent claims.The inventive method is, checks the data content of the signal that is received by at least one antenna, and when the data content of a signal during corresponding to the data content of another signal, switches on another signal with this antenna reception from a signal that receives with antenna.The method is applied to only provide an antenna to come the situation of received signal (no diversity system).
As an alternative or supplement, inspection is by the data content of the signal of at least two antennas receptions, and when the data content of the signal that receives with antenna during corresponding to the data content of another signal that receives by another antenna, switch to another signal from the signal that receives by an antenna with another antenna reception on.The method be applied to provide more than one antenna be used for received signal situation (for example two, three, four or more than four antennas) (diversity system).
The application of the data content of received signal especially has the following advantages during received television signal in traveling automobile: represent certain data content that sends program by a static transmitter therewith by program of this static transmitter emission be simulation or numeral irrelevant.If having determined up to the present that program of receiving with first antenna is now received better by another antenna at least, especially from an emitter region during to the transition of another emitter region, then the signal that is received by another antenna is sent to receiver and is used for handling and reproducing.Here importantly, switch on such antenna, receive program with this antenna with same data content.The data content consistency of each signal that check receives with each antenna has the following advantages: can be very fast, checking that relatively it is consistent or depart from by means of rated value and actual value for example.Consistent if (when better signal performance) then switch on another antenna.If inconsistent, then can continue to receive present emission by primary antenna, and till the antenna of another same program content has better signal quality.Intactly say, " primary antenna " this notion comprises in a plurality of antennas, and automobile can have two or more antennas at least, they receive high-frequency signal constantly, and their programme content (data content) and signal quality are checked or compared to the receiver (particularly diversity processor) that connects behind these signals quilts.Signal quality is signal content or the quality determined by bit error rate.
In one embodiment of the invention, the data content of the signal that is received is determined by blanking interval (VBI, vertical blanking interval).Multiple applicable data are arranged, as videotext, data line and test line in blanking interval.
In improvement of the present invention, data content is determined by means of the title of the transmitter that sends and receive.This is effective especially under the situation of numeral transmission program especially, and this moment, high-frequency digital signal also comprised the transmitter title (for example ARD) of transmission.If such being transmitted into so far is received, and running car to an emitter region, same transmitter emission in this emitter region, then the signal of this emission is collected, and switches to better based on consistency and to receive on the antenna with same program content emission.
In improvement of the present invention, data content determines by means of EPG (electronic program guides) data or SI (business information) data or PSI (program specific information) data, thereby can determine consistent or depart from based on these data or data content.
In addition according to the present invention,, switch to the emission that another has the emitter region of same programme content from the emission of an emitter region so that can be beyond all doubtly for the specified data content also can comprise a plurality of criterions.
Apparatus of the present invention are fit to realize method of the present invention by its 26S Proteasome Structure and Function.This device for example comprises a plurality of antennas that are installed in the automobile.These antenna switches with a diversity processor, and this processor also is connected with receiver, wherein receiver is finished the processing to the high-frequency signal that is received, and with suitable method (for example optics and/or acoustics) demonstration it.Diversity processor is designed to switch on another antenna from an antenna when another receiver is received corresponding signal.According to the present invention, whole device is designed to when whether the data content of diversity processor itself or receiver or other device high-frequency signal that inspected received has same program content, and diversity processor switches to another antenna from an antenna.If a plurality of antennas are arranged, be that two antennas receive identical programme contents at least, and their signal quality is different mutually, diversity processor connects the antenna with better signal quality and is used for receiving.
Further specify the present invention by accompanying drawing below, yet the present invention is not limited to the accompanying drawing illustrated embodiment.In the accompanying drawing:
Fig. 1 is illustrated in the different transmitters in the different emitter regions;
Fig. 2 and Fig. 3 illustrate from a transmitter has the switching of the transmitter of same program content to another;
Fig. 4 illustrates a device that is used to realize the inventive method.
Fig. 1 illustrates an emission area of coverage for example, may pass a zone in running car.When for example beginning, automobile is in analog transmissions district 1.This automobile arrives at digital transmission district 2 in continuing to travel, adopt the program that this method can guarantee to receive with analog form (TV programme ZDF for example in analog transmissions district 1, hereinafter referred to as ZDF) continue to be received when moving on to digital transmission district 2 cutting, promptly keep programme content, what just receive now no longer is the reception of simulation, but the reception of numeral.Automobile enters digital transmission district 3 from digital transmission district 2 when continuing to travel, and at this moment should continue program receiving ZDF, but receives transmitting from another transmitter.The middle automobile that travels afterwards enters analog transmissions district 4, also should continue program receiving ZDF at this, yet no longer receive the emission of numeral now, but receive analog transmit signal.The program that the transmitter 5 to 8 that uses the present invention to realize receiving continuously the different location in a word sends (here for example ZDF), and with transmitter 5 to 8 be simulation send or numeral to send this program irrelevant.The invention enables at automobile and when an emitter region (analog or digital emitter region) drives to another emitter region (analog or digital emitter region), be switching to possibility.
For when next emitter region is transferred in an emitter region, continuing to receive same program or programme content, adopt described especially in the claims criterion, the i.e. data content of received signal.Except by means of transmitter title, EPG data or the SI data specified data content from data, transmission and the reception of blanking interval, also can determine by the graph-text content of transmitter according to the present invention.Fig. 2 and Fig. 3 illustrate from the transition of a digital emitter region, an analog transmissions district to.The graph-text content of transmitter ZDF is shown as an example here.Fig. 2 illustrates the graph-text content that receives with the simulation receiving mode from transmitter ZDF, wherein for the sake of clarity, adopts the mode of intercepting fragment to illustrate.Here information shown in uses the high-frequency signal by the transmitter emission to transmit, and transmits with the form of data, and these data are synthesized in the data content.According to the present invention, some specific data content shown in Figure 2 is examined, and compares with the data content that is received by another antenna shown in Figure 3.If determined that at this moment selected data content (for example character string " ZDF-text Mi 12.01.05 ") is consistent, such as shown in Figures 2 and 3, then can receive and switch to digital received from simulation.When the criterion that is identified for switching (data content just), be suitable for selecting such content: they in each emission, may switch the time be constant in interval.Fig. 2 and time showing shown in Figure 3 (14:38:44) may be not suitable for as transfer criterion, because these data contents logically are to continue to change.This means between program simulation and numeral and a plurality of digital programs between diversity, one continues identical programme content (same data content) is necessary.Have special advantage as shown in Figures 2 and 3 and in the correlation of the graph-text content of this explanation: it can be used for all types of transition as shown in Figure 1.The prerequisite of this criterion is that the program that is received sends with picture and text.If not this situation, the method that then has advantage is to judge as data content by means of foregoing other data.
According to condition of acceptance, as substituting or replenish to above-described, if not (having only) program on (reception) antenna and the situation on other the antenna of program at other, but all antennas receive current program simultaneously, then only on program relatively the antenna (path) of (in the new sending area) be used for comparison.All antennas are switched once more then.
Fig. 4 illustrates a device that is used to realize the inventive method for example.Antenna of Reference numeral 9 expression, its designs according to the frequency range that will receive, and is installed in the automobile on the relevant position.If have only common antenna 9 available, then this method according to claim 1 feature come work, do not have diversity system in the case.Can use if having more than one antenna, Fig. 4 illustrate antenna 9 to 11 (perhaps more than three slave antennas, " n " individual antenna is arranged in general, n 〉=1), then relate to a diversity system, it is according to the feature work of claim 1, perhaps as a supplement or substitute, according to the feature work of claim 2.Connect respective receiver (tuner) 12 to 14 behind each antenna 9 to 11, wherein the output signal of receiver (the not only data of tuner 12) is fed to a mpeg decoder.Its output signal is sent to assessment unit 16 by respective wire, and this unit has a logical device that is used to realize the inventive method, result memory and control and correlation unit.In this case, when having a plurality of antennas 9 to 11 and respective receiver 12 to 14, relate to a diversity system, in order to select a corresponding antenna 9 to 11, assessment unit 16 sends control signal to receiver unit by control line 17, connection corresponding signal path of 16 from the respective antenna to the assessment unit, by it provide may be best reception.
The output signal of mpeg decoder 15 also is given to AD converter in this embodiment.This is necessary with significant, because the output signal of mpeg decoder 15 is a FBAS signal (but not necessarily) in the case, thereby simulates, thereby must be digital signal from analog signal conversion.With additional, also can be as an alternative from mpeg decoder 15 direct paths to assessment unit 16.
At last, also insert analog to digital converter from receiver 12 to 14 to the signal path of assessment unit 16, the analog signal conversion that they provide receiver 12 to 14 is that digital signal continues to handle for assessment unit 16.Analog to digital converter can be arranged on separately between receiver 12 to 14 and the assessment unit 16, but also can be integrated in the receiver 12 to 14 and/or in the assessment unit 16.
Reference numerals list
1 first analog transmissions district
2 first digital transmission districts
3 another digital transmission districts
4 another analog transmissions districts
5 transmitters
6 transmitters
7 transmitters
8 transmitters
9 antennas
10 antennas
11 antennas
12 receivers (tuner)
13 receivers (tuner)
14 receivers (tuner)
15 mpeg decoders
16 assessment units
17 holding wires
18 memory cell
19 outputs
20 analog to digital converters
Claims (10)
1. be used to receive the method for high-frequency signal, an antenna or a plurality of antenna receiving signal of one of them receiver, and the corresponding signal of an antenna is further delivered to a receiver, but these signals are represented the programme content of a preliminary election, wherein also can select another antenna at least in case of necessity, it receives has same program content, but the signal that better signal quality is arranged, it is characterized in that, inspection is by the data content of the signal of at least one antenna reception, if the data content of the signal that is received by antenna then switches to described another signal from a described signal corresponding to the data content of another signal that is received by this antenna then.
2. the method for claim 1, it is characterized in that, inspection is by the data content of the signal of at least two antennas receptions, if the data content of the signal that is received by antenna is corresponding to the data content of another signal that is received by another antenna at least then, then switch to described another signal with described another antenna reception from the described signal that receives with a described antenna.
3. method as claimed in claim 1 or 2 is characterized in that, described data content is by means of especially determining from the data in vertical blanking gap (VBI, vertical blanking gap).
4. method as claimed in claim 1 or 2 is characterized in that described data content is determined by means of the graph-text content of transmitter.
5. method as claimed in claim 1 or 2 is characterized in that described data content is determined by means of the title of the transmitter that transmits and receives.
6. method as claimed in claim 1 or 2 is characterized in that, described data content is determined by means of EPG data (electronic program guide data).
7. method as claimed in claim 1 or 2 is characterized in that, described data content is determined by means of SI data (business information data).
8. method as claimed in claim 1 or 2 is characterized in that, described data content is determined by means of PSI data (program specific information).
9. a method is characterized in that making up at least two methods as each described specified data content in the claim 3 to 8.
10. device is characterized in that its structure and characteristic are suitable for realizing method according to any one of the preceding claims.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005002425.4 | 2005-01-18 | ||
| DE102005002425 | 2005-01-18 | ||
| DE102005039507.4 | 2005-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101103553A true CN101103553A (en) | 2008-01-09 |
Family
ID=39036787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800468241A Pending CN101103553A (en) | 2005-01-18 | 2005-12-09 | Program diversity |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101103553A (en) |
| UA (1) | UA97089C2 (en) |
| ZA (1) | ZA200705423B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104160696A (en) * | 2012-02-07 | 2014-11-19 | 赫希曼汽车通讯有限公司 | Transmitter tracking of various standards |
| CN105191169A (en) * | 2013-03-15 | 2015-12-23 | 舒尔获得控股公司 | Wireless audio receiver system and method |
-
2005
- 2005-09-12 UA UAA200709388A patent/UA97089C2/en unknown
- 2005-12-09 CN CNA2005800468241A patent/CN101103553A/en active Pending
-
2007
- 2007-07-03 ZA ZA200705423A patent/ZA200705423B/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104160696A (en) * | 2012-02-07 | 2014-11-19 | 赫希曼汽车通讯有限公司 | Transmitter tracking of various standards |
| CN105191169A (en) * | 2013-03-15 | 2015-12-23 | 舒尔获得控股公司 | Wireless audio receiver system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200705423B (en) | 2009-05-27 |
| UA97089C2 (en) | 2012-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HIRSCHMANN CAR COMM GMBH Free format text: FORMER OWNER: HIRSCHMANN ELECTRONICS GMBH Effective date: 20120725 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120725 Address after: German neckartenzlingen Applicant after: Hirschmann Car Communication GmbH Address before: German neckartenzlingen Applicant before: Hirschmann Electronics GmbH |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20080109 |