CN1251700A - Multiplex broadcast receiving method and receiver - Google Patents
Multiplex broadcast receiving method and receiver Download PDFInfo
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- CN1251700A CN1251700A CN98803712A CN98803712A CN1251700A CN 1251700 A CN1251700 A CN 1251700A CN 98803712 A CN98803712 A CN 98803712A CN 98803712 A CN98803712 A CN 98803712A CN 1251700 A CN1251700 A CN 1251700A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
- H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
- H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
- H04H20/33—Arrangements for simultaneous broadcast of plural pieces of information by plural channels
- H04H20/34—Arrangements for simultaneous broadcast of plural pieces of information by plural channels using an out-of-band subcarrier signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
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- 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
- H04H60/35—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users
- H04H60/38—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space
- H04H60/41—Arrangements for identifying or recognising characteristics with a direct linkage to broadcast information or to broadcast space-time, e.g. for identifying broadcast stations or for identifying users for identifying broadcast time or space for identifying broadcast space, i.e. broadcast channels, broadcast stations or broadcast areas
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- 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
- H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
- H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
- H04H60/90—Wireless transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/30—Aspects of broadcast communication characterised by the use of a return channel, e.g. for collecting users' opinions, for returning broadcast space/time information or for requesting data
- H04H2201/37—Aspects of broadcast communication characterised by the use of a return channel, e.g. for collecting users' opinions, for returning broadcast space/time information or for requesting data via a different channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
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Abstract
A multiplex broadcast receiving method can simultaneously receive a general radio broadcast and an additional information broadcast. In the method, one among a general radio mode, an additional broadcast mode, and a multiplex broadcast mode is selected. Broadcasting station according to the selected mode is selected and a wave of the selected broadcasting station is outputted. At least one among the audio signal, the additional information signal, and the multiplex broadcast signal is detected and processed from the outputted broadcasting station wave according to the selected mode. It is discriminated whether a different mode is selected among the modes. Execution of the different mode is controlled according to a discrimination result. According to the method, the method can display additional information in a form of a character, a graphic, or an image on a display device tuned by one tuner while listening to a general radio program tuned by the other tuner.
Description
Technical field
The present invention relates to multiplex broadcasting, relate in particular to the multiplex broadcast receiving method and the receiver that can receive wireless universal broadcasting and additional information broadcasting simultaneously.
Technical background
Usually, frequency modulation(FM) (FM) multiplex broadcasting is the broadcasting of broadcasting data-signal with the form of character, figure or image, and these characters, figure or image overlay in the FM broadcast wave as additional broadcast information.This additional broadcast information comprises traffic, music and weather.Subcarrier resides in outside the frequency band that the FM modulation signal occupies, and is the third harmonic of 19kHz stereo pilot signal, the data signal amplitude modulation behind the filtered and coded biphase of this subcarrier, and indicate to provide the programme content of wireless data signal.
Fig. 1 represents traditional FM multiplex broadcasting receiver.Traditional FM multiplex broadcasting receiver 10 comprises key input part 102, tuner 104, demodulator 106, stereophonic signal output 108, band pass filter 110, decoder 112, controller 114 and memory portion 116 and LCD (LCD) 118.Key input part 102 produces a kind of in wireless universal mode select signals and the additional broadcast mode select signal, so that select wireless universal pattern or additional broadcast pattern.Mode select signal is applied to controller 114.
The broadcasting station that the model selection that tuner 104 is selected according to key input part 102 is wanted, and convert the broadcast wave in selected broadcasting station to intermediate-freuqncy signal.
This intermediate-freuqncy signal is imported into demodulator 106 and decoder 112.106 pairs of demodulators come the intermediate-freuqncy signal of self-tuner 104 to carry out the FM demodulation, to export a subcarrier signal and a baseband signal.
Stereophonic signal output 108 outputs one FM stereophonic signal, this FM stereophonic signal is divided into a right-side signal and a left-side signal based on subcarrier from base band.
110 pairs of band pass filters come the intermediate-freuqncy signal of self-tuner 104 to carry out bandpass filtering, so that obtain the additional broadcast signal.This additional broadcast signal is fed to decoder 112.Decoder 112 will become the readable data of regulation from the additional broadcast signal decoding of band pass filter 110.The additional broadcast signal that is decoded into the readable data of regulation offers controller 114.
The additional broadcast signal that controller 114 will be decoded into the regulation readable data is fed to memory 116 from decoder 112, and produces the operating control signal of tuner 104 and decoder 112.Memory 116 is stored the additional broadcast signal that comes self-controller 114 therein.
LCD118 shows additional broadcast information based on the additional broadcast signal with the character code form.
Fig. 2 has described the multiplex broadcast receiving method according to multiplex broadcasting receiver shown in Figure 1.
At step S201, controller 114 judges whether to have selected the wireless universal pattern.
According to the judged result of step S201, when having selected common-mode, controller 114 control tuners 104 and demodulator 106 are so that carry out wireless universal pattern (step S202), EP (end of program).On the other hand, when judging when not selecting the wireless universal pattern, controller 114 determines whether to have selected multiplex broadcasting pattern (step S203).
According to definite result of step 203, when not selecting the multiplex broadcasting pattern, EP (end of program).On the other hand, when determining to have selected the multiplex broadcasting pattern, controller 114 checks in the wireless signal of receiving whether comprise character data signal (step S204) in tuner 104.According to the check result of step S204, when not comprising character data signal in the wireless signal, EP (end of program).On the other hand, when comprising character data signal in being checked through wireless signal, controller 114 control tuner 104 and decoders 112 are to carry out multiplex broadcasting pattern (step S205).
Because traditional multiplex broadcast receiving method and receiver have a tuner, the user receives wireless universal broadcasting or multiplex broadcasting by a tuner.Yet, when the user broadcasts by the wireless universal that uses tuner reception a such as music broadcast, can not receive additional broadcast such as character broadcast.
U.S. Patent No. 5,428,825 (being published in the Ryou Tomohiro in June 27 nineteen ninety-five) disclose and have been the method for RDS receiver selective reception frequency.Traditional be in the method for RDS receiver selective reception frequency, (alternative) frequency inventory of selecting that the broadcasting station of front sends is stored in the memory.No matter when motor vehicles get back to the identical broadcasts service area of the network of the frequency the selected inventory that wherein can effectively use storage, and described RDS receiver all can select the frequency inventory to catch (chase) identical broadband program (broad program) according to this.And, in the operating process of catching identical radio program, storage also can be about the frequency data the selected inventory of the broadcasting wave frequency that receives with the passing through the frequency the selected inventory that the broadcasting station sends and use of storage, to catch identical broadcast program.
Of the present invention open
Therefore, an object of the present invention is, a kind of multiplex broadcast receiving method and receiver that can receive wireless universal broadcasting and character broadcast simultaneously is provided in order to solve above mentioned problem.
In order to achieve this end, according to the present invention, provide a kind of multiplex broadcast receiving method, this method may further comprise the steps:
A) select a kind of in the multiplex broadcasting pattern of the wireless universal pattern of output first audio signal, the additional broadcast pattern that shows first additional information signal and the multiplex broadcasting signal that output contains second audio frequency and additional information signal;
B), select a broadcasting station and export the ripple in selecteed broadcasting station according to the pattern of selecting in the step a); With
C) pattern of selecting according to step a) detects and handles at least a from first audio signal, first additional information signal and the multiplex broadcasting signal of the broadcasting station ripple of step b) output.
D) judged whether to select a kind of pattern different with these patterns; And
E) according to the judged result of step d), control the execution of different mode.
In addition, also provide a kind of multiplex broadcasting receiver, having comprised:
One model selection part is selected at least a in the multiplex broadcasting pattern of the wireless universal pattern of output first audio signal, the additional broadcast pattern that shows first additional information signal and the multiplex broadcasting signal that output contains second audio frequency and information signal;
At least one tuner according at least a pattern by the mode selection part component selections, is selected at least one broadcasting station, and exports one or more kind ripples in selected at least one broadcasting station;
One pattern operating part, according to divide selected at least a pattern by mode selection part, detect and at least a signal of processing from first audio signal, first additional information signal and the multiplex broadcasting signal of one or more kind ripples at least one broadcasting station of described at least one tuner output; With
One controller judges successively whether described pattern is selected, and controls the operation of described at least one tuner and described pattern operating part according to judged result.
According to the present invention, the present invention can be when listening to the wireless universal program tuning by other tuners, will by a tuner tuning additional information be presented on the display with the form of character, figure or image.
Read following detailed description in conjunction with the drawings, other purposes of the present invention and further feature will become more obvious.
Brief description of the drawings
From following description taken together with the accompanying drawings, it is more obvious that other features and advantages of the present invention will become.
Fig. 1 is the block diagram of explanation traditional F M multiplex broadcasting receiver;
Fig. 2 is a flow chart of describing the operation of traditional F M multiplex broadcasting method;
Fig. 3 is the view that the FM multiplex broadcasting spectrum structure that uses in the present invention is described;
Fig. 4 is the block diagram of explanation according to the FM multiplex broadcasting receiver of one embodiment of the invention; With
Fig. 5 is the flow chart of describing according to the FM multiplex broadcast receiving method of one embodiment of the invention.
Realize best mode of the present invention
Describe the preferred embodiments of the present invention below with reference to accompanying drawings in detail.
Fig. 3 shows the block diagram of FM signal spectrum.
Use in the FM radio station stereo multiplexed be the example of pilot-tone system.The FM radio station is allowed to use 75kHz to send mixed signal before the frequency of utilization modulation.When receiving, serial connection is used two demodulators, and one is used for FM, and another is used for separating audio signals.In stereophonic broadcasting, be necessary to send and receive a left side (L) sound channel and the right side (R) voice-grade channel, simultaneously with its with (L+R) offer the monophony receiver.In order to serve two types receiver, (L+R) signal occupies common audible spectrum to 15kHz, and (L-R) signal that is in the same frequency spectrum scope is displaced in the frequency of using the DSB-SC modulating system.Figure 3 illustrates the carrier frequency of use 38kHz and the schematic diagram of gained mixing frequency spectrum.This just makes the unoccupied and pilot frequency carrier wave of frequency band 15-23kHz be positioned at the 19kHz place.In receiver, the narrow-band pass filter that is centered close to 19kHz takes out this pilot frequency carrier wave.This frequency by frequency multiplication to 38kHz and be used for synchronous demodulator.At last, the addition of two signals and subtract each other and produced required L and R audio signal.
At (the Europe Broadcasting Union of European Broadcasting Union, EBU) standardized radio data system (radio data system, RDS) in, be carried in such as the data-signal that is used for character data signal of the present invention and be added to the 57kHz subcarrier, this subcarrier is additional to stereo multiple signals (or suitable single-tone road signal) at the input of VHF/FM transmitter.In stereophonic broadcasting, subcarrier frequency will be locked into the third harmonic of 19kHz pilot tone.The data signal amplitude modulation of this subcarrier after by shaping and coded biphase.This subcarrier obtains compression.Perhaps, this modulator approach also can think to have biphase phase shift keying method (two-phase phase-shift-keying, form PSK) of 90 degree phase deviations.As shown in Figure 3, data wireless channel system (data radio channel system in Japan, DARC), the RBW Radio Broadcast Data System of the U.S. (radio broadcast data system, RBDS), reach attached communication (the subsidiary communication authorization of mechanism of the U.S., SCA) in, data-signal such as character data signal is carried in respectively on 76kHz, 57kHz and 67kHz and the 92kHz subcarrier, and these subcarriers are added in the stereo multiple signals.
According to by model selection part 402 selected at least a patterns, at least one tuner is selected at least a broadcasting station, and export selected at least a broadcasting station one or more plant ripples., two tuners are arranged here, that is, and shown first and second tuners 404 and 406.First tuner 404 is according to the wireless universal mode select signal GR of the wireless universal mode selecting key 402a generation of model selection part 402, select first required broadcasting station, and convert the ripple in this first broadcasting station of selecting to have first predetermined intermediate frequency the first intermediate-freuqncy signal IF1.Additional broadcast mode select signal CB or multiplex broadcasting mode select signal MB that second tuner 406 is produced according to additional broadcast mode selecting key 402b or multiplex broadcasting mode selecting key 402c by model selection part 402, select second or the 3rd required broadcasting station, and convert the ripple in this second or the 3rd broadcasting station to have the second or the 3rd predetermined intermediate frequency the second or the 3rd intermediate-freuqncy signal IF2 or IF3.
According to model selection part 402 selected at least a patterns, pattern operating part 407 detects and handles audio signal, additional information signal and the multiplex broadcasting signal from least a broadcasting station ripple of first or second tuner 404 or 406 outputs.
410 pairs of additional information processors are decoded and are shown from first additional information signal of the first broadcasting station ripple of first tuner 404 with from second additional information signal of the second broadcasting station ripple of second tuner 406.Additional information processor 410 comprises band pass filter 410a, decoder 410b and LCD (LCD) 410c.
Decoder 410b is connected to the output of band pass filter 410a, and will be decoded into first or second readable data DCD1 or the DCD2 that stipulates by the first or second additional information signal CD1 or the CD2 that band pass filter 412 obtains.The first or second additional information signal DCD1 or DCD2 by decoder 410b decoding are applied to controller 412.LCD410c in response to the operating control signal LC of the LCD410c that is produced by controller 412, shows first or second additional information based on first or second additional information signal DCD1 or the DCD2 by decoder 414 decodings.This additional information processor 410 also comprises a memory 410d, is used for the operating control signal MC in response to the memory 410d that is produced by controller 412, and storage is by first or second additional information signal DCD1 or the DCD2 of decoder 414 decodings.
Next, with reference to Fig. 4,5A and 5B multiplex broadcast receiving method according to one embodiment of the invention is described.Fig. 5 A and 5B have described the multiplex broadcast receiving method according to one embodiment of the invention.
In step S501, when power knob 400 was depressed again, multiplex broadcasting receiver 40 was by first making, so that make first and second tuners 404 or 406 receive the wireless signals in original broadcast radio station by the antenna (not shown).At step S502, controller 416 judges whether to have selected the wireless universal pattern, that is, whether the wireless universal mode key 402a of model selection part 402 is depressed again.
As the judged result of step S502, when not selecting the wireless universal pattern, at step S503, controller 412 judges whether to have selected the multiplex broadcasting pattern, that is, whether the multiplex broadcasting mode key 402b of model selection part 402 is depressed again.As the judged result of step S503, when the multiplex broadcasting pattern was not selected in judgement, at step S504, controller 416 judged whether to have selected model tape, that is, whether the model tape key 402c of model selection part 402 is depressed again.As the judged result of step S504, when not selecting model tape, at step S505, controller 412 control CD Player 416 are carried out the CD pattern.On the other hand, when model tape had been selected in judgement, at step S506, tape transport 414 was carried out model tape under the control of controller 412.
On the other hand, judged result as step S502, when having selected the wireless universal pattern, at step S507, controller 412 control first tuner 404 is selected first broadcasting stations of wanting, and converts the ripple in the broadcasting station of first selection to comprise first predetermined intermediate frequency the first intermediate-freuqncy signal IF1.Be fed to the demultiplexer 408a of the audio signal processor 408 of pattern operating part 407 from an IF signal IF1 of first tuner 404.Therefore, at step S508,408 couples of IF signal IF1 from first tuner 404 of demultiplexer carry out the FM demodulation, so that output subcarrier sc and baseband signal BB.Subcarrier sc and baseband signal BB from demultiplexer 408 are fed to stereophonic signal output 408b.Therefore, stereophonic signal output 408b is divided into the FM stereophonic signal of right-side signal R and left-side signal L from demultiplexer 408 output, this stereophonic signal based on the baseband signal BB (step S509) of subcarrier sc.
At step S510, controller 412 judges when carrying out the wireless universal pattern whether selected the additional broadcast pattern, that is, whether the additional broadcast mode selecting key 402b of model selection part 402 is depressed.As the judged result of step S510, when not selecting the additional broadcast pattern, EP (end of program).On the other hand, when judging when having selected the additional broadcast pattern, controller 412 controls second tuner 406 is selected the broadcasting station of second needs, and converts the ripple in the broadcasting station of this second selection to second intermediate-freuqncy signal IF2 (step 511).Be sent to the band pass filter 410a of additional information processor 410 from the second intermediate-freuqncy signal IF2 of second tuner 406.Correspondingly, band pass filter 410a carries out bandpass filtering to the second intermediate-freuqncy signal IF2 from second band pass filter 406, so that obtain the first additional information signal CD1 (step S512).The additional information data signal CD1 that is obtained by band pass filter 410a offers decoder 410b.
Therefore, decoder 410b will be decoded into the readable data DCD1 (step S513) of first regulation from the first additional information signal CD1 of band pass filter 410a.The first additional information signal DCD1 by decoder 410b decoding is applied to controller 412.Controller 412 receives the first decoding additional information signal DCD1 from decoder 410b.And controller 412 offers memory 410d by the operating control signal MC of generation memory 410d and with this signal, controls the additional information signal DCD1 (step S514) of this memory 410d storage first decoding.Then, controller 412 offers this LCD410c according to the first additional information signal DCD1 that is stored among the memory 410d by operating control signal LC and this signal that produces LCD410c, controls this LCD410c and shows first additional information (step 515).
On the other hand, judged result as step S503, when having selected the multiplex broadcasting pattern, controller 412 control second tuner 406 is selected the 3rd broadcasting station of wanting, and converts the ripple in the broadcasting station of the 3rd selection to the 3rd intermediate-freuqncy signal IF3 (step S516).The 3rd intermediate-freuqncy signal IF3 is fed to the demultiplexer 408a of audio signal processor 408 and the band pass filter 410b of additional information processor 410.Therefore, 408 couples of the 3rd IF signal IF3 from second tuner 406 of demultiplexer carry out the FM demodulation so that output subcarrier sc and baseband signal BB.Subcarrier sc and baseband signal BB from demultiplexer 408 are fed to stereophonic signal output 408b.Therefore, stereophonic signal output 408b exports the FM stereophonic signal that is divided into right-side signal R and left-side signal L from demultiplexer 408, and this stereophonic signal is from the baseband signal BB based on subcarrier sc.
Meanwhile, band pass filter 410a carries out bandpass filtering to the 3rd intermediate-freuqncy signal IF3 from second tuner 406, so that obtain the second additional information signal CD2.The second additional information signal CD2 that is obtained by band pass filter 410a is provided for decoder 410b.Therefore, decoder 410b will be decoded into the readable data DCD2 of second regulation from the second additional information signal CD2 of band pass filter 410a.The second additional information signal DCD2 by decoder 410b decoding is applied to controller 412.Controller 412 receives the second decoding additional information signal DCD2 from decoder 410b.And controller 412 also offers this memory 410d with this signal by the operating control signal MC that produces memory 410d, controls this memory 410d storage second decoding additional information signal DCD2.Then, controller 412 is according to the second additional information signal DCD2 that is stored among the memory 410d, also this signal is offered this LCD410c by the operating control signal LC that produces LCD410c, control this LCD410c and show second additional information, so that finish multiplex broadcasting pattern (step S517).
As mentioned above, the present invention includes first tuner and second tuner that is used to receive such as the additional FM broadcasting of character broadcast that are used to receive wireless universal broadcasting, and, the present invention can be when listening to the wireless universal program tuning by other tuner, shows on display by an additional information that tuner is tuning with the form of character, figure or image.
Although described the present invention with reference to specific embodiment, this description is exemplary, is not to be used for limiting the scope of the invention.Under the situation that does not break away from the spirit and scope of the present invention that define by claims, can carry out various modifications and variations to it by those skilled in the art.
Claims (20)
1. multiplex broadcast receiving method said method comprising the steps of:
A) select a kind of in the multiplex broadcasting pattern of the wireless universal pattern of output first audio signal, the additional broadcast pattern that shows first additional information signal and the multiplex broadcasting signal that output contains second audio frequency and additional information signal;
B), select a broadcasting station and export the ripple in selecteed broadcasting station according to the pattern of selecting in the step a);
C), detect and handle at least a from first audio signal, first additional information signal and the multiplex broadcasting signal of the broadcasting station ripple of step b) output according to the pattern of selecting in the step a);
D) judged whether to select a kind of pattern different with these patterns; And
E) according to the judged result of step d), control the execution of different mode.
2. multiplex broadcast receiving method as claimed in claim 1 comprises traffic, music and weather with described additional information signal content corresponding.
3. multiplex broadcast receiving method as claimed in claim 1, wherein, when having selected different mode in step d), the while execution in step is selected pattern and this different mode a).
4. multiplex broadcast receiving method as claimed in claim 1, wherein, when in step a), having selected wireless universal pattern, additional broadcast pattern and multiplex broadcasting pattern, step c) comprise detect respectively and handle first audio signal of coming the broadcasting station ripple exported in the comfortable step b), first additional information signal and the multiplex broadcasting signal.
5. multiplex broadcast receiving method as claimed in claim 4, wherein said detection and the step of handling first audio signal comprise: the ripple in the described broadcasting station of demodulation; With, detect first audio signal from the broadcast wave of demodulation.
6. multiplex broadcast receiving method as claimed in claim 4, wherein said detection and the step of handling first additional information signal comprise:
Described broadcasting station ripple is carried out filtering, to obtain first additional information signal;
First additional information signal that obtains is decoded; And
The additional information signal that shows first decoding.
7. multiplex broadcast receiving method as claimed in claim 4, the step of wherein said detection and processing multiplex broadcasting signal comprises: detect second audio frequency and additional information signal from described broadcast program ripple.
8. multiplex broadcast receiving method as claimed in claim 7, wherein said detection and the step of handling second audio signal comprise: the described broadcasting station of demodulation ripple; With, detect second audio signal from the broadcasting station ripple of demodulation.
9. multiplex broadcast receiving method as claimed in claim 7, wherein said detection and the step of handling second additional information signal comprise: described broadcasting station ripple is carried out filtering, to obtain second additional information signal; The additional information signal that obtains is decoded; And the additional information signal of demonstration second decoding.
10. multiplex broadcast receiving method said method comprising the steps of:
I) select a kind of in the multiplex broadcasting pattern of the wireless universal pattern of output first audio signal, the additional broadcast pattern that shows first additional information signal and the multiplex broadcasting signal that output contains second audio frequency and additional information signal;
Ii) according to step I) the middle pattern of selecting, select a broadcasting station and export the ripple in selecteed broadcasting station;
Iii) according to coming comfortable step I i) the middle broadcasting station ripple of exporting, when selecting the wireless universal pattern, detect and handle first audio signal, when selecting the additional broadcast pattern, detect and handle first additional information signal, and, during the broadcast mode of elected majority road, detect and handle the multiplex broadcasting signal;
Iv) judge whether to have selected a kind of pattern different with these patterns; And
V) when having selected different patterns, repeating step ii), iii) and iv).
11. multiplex broadcast receiving method as claimed in claim 10, the wherein said step that detects and handle first additional information signal in ii) in step I comprises:
Described broadcasting station ripple is carried out filtering, to obtain first additional information signal;
First additional information signal that obtains is decoded; And
The additional information signal that shows first decoding.
12. multiplex broadcast receiving method as claimed in claim 10, the wherein said step that detects and handle the multiplex broadcasting signal in ii) in step I comprises: detect second audio frequency and additional information signal from described broadcasting station ripple.
13. a multiplex broadcasting receiver comprises:
One model selection part is selected at least a in the multiplex broadcasting pattern of the wireless universal pattern of output first audio signal, the additional broadcast pattern that shows first additional information signal and the multiplex broadcasting signal that output contains second audio frequency and information signal;
At least one tuner according at least a pattern by the mode selection part component selections, is selected at least one broadcasting station, and exports one or more kind ripples in selected at least one broadcasting station;
One pattern operating part, according to divided selected at least a pattern by mode selection part, detection and processing are by a kind of signal in first audio signal, first additional information signal and the multiplex broadcasting signal in one or more kind ripples in described at least one broadcasting station of described at least one tuner output;
One controller, whether judgment model is selected successively, and controls the operation of described at least one tuner and described pattern operating part according to judged result.
14. comprising being respectively applied for, multiplex broadcasting receiver as claimed in claim 13, wherein said mode selection part branch produce common-mode options button, additional broadcast mode key and the multiplex broadcasting mode selecting key that the common-mode of selecting the wireless universal pattern is selected signal, is used to produce the additional broadcast mode select signal of selecting the additional broadcast pattern and is used to produce the multiplex broadcasting mode select signal of selecting the multiplex broadcasting pattern.
15. multiplex broadcasting receiver as claimed in claim 13, wherein said pattern operating part comprises:
One audio signal processor is used for detecting and handle one or more that be included in from described at least one tuner output and plants first audio signal and second audio signal of the multiplex broadcasting signal of broadcasting station ripples; And
One additional information processor is used for decoding and shows that one or more that be included in from described at least one tuner output plant first additional information signal and second additional information signal of the multiplex broadcasting signal of broadcasting station ripples.
16. multiplex broadcasting receiver as claimed in claim 15, wherein said audio signal processor comprises: a demultiplexer, be used for demodulation one or more kind broadcasting station ripples, to export a subcarrier signal and a baseband signal from described at least one tuner output; One stereophonic signal output is used for from described demultiplexer output first or second audio signal, and each first or second audio signal all is divided into the right side and left channel signals, and these signals are from the baseband signal based on subcarrier signal.
17. multiplex broadcasting receiver as claimed in claim 15, wherein said additional information processor comprises:
One filter is used for one or more the kind broadcasting station ripples from described at least one tuner output are carried out filtering, to obtain first or second additional information signal;
One decoder is used for and will be decoded into the readable data of regulation from first or second additional information signal of described filter; And
One display is used to show first or second additional information signal by described decoder decode.
18. multiplex broadcasting receiver as claimed in claim 17, wherein said additional information processor also comprises a memory, is used to store first or second additional information signal by described decoder decode.
19. a multiplex broadcasting receiver comprises:
One model selection part is used for selecting to export multiplex broadcasting pattern at least a of the wireless universal pattern of first audio signal, the additional broadcast pattern that shows first additional information signal and the multiplex broadcasting signal that output contains second audio frequency and additional information signal;
First and second tuners are used for selecting first and second broadcasting stations, and exporting the ripple in selected first and second broadcasting stations respectively according at least a pattern by described mode selection part component selections;
One audio signal processor is used for detecting respectively and handle first audio signal and second audio signal that are included in from the multiplex broadcasting signal of the first and second broadcasting station ripples of described first and second tuners output;
One additional information processor is used for decoding respectively and shows first additional information signal and second additional information signal that is included in from the multiplex broadcasting signal of the first and second broadcasting station ripples of described first and second tuners output; And
One controller is used for order and judges whether to have selected each pattern, and controls described first and second tuners, described audio signal processor and described additional information processor according to judged result.
20. multiplex broadcasting receiver as claimed in claim 19, wherein said additional information processor comprises:
One filter is used for one or more broadcasting station ripples from described first and second tuners output are carried out filtering, to obtain first or second additional information signal;
One decoder is used for and will be decoded into the readable data of regulation from first or second additional information signal of described filter; And
One display is used to show first or second additional information signal by described decoder decode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970011027A KR19980074982A (en) | 1997-03-28 | 1997-03-28 | Receive method of FM additional broadcasting |
| KR1997/11027 | 1997-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1251700A true CN1251700A (en) | 2000-04-26 |
Family
ID=19501121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98803712A Pending CN1251700A (en) | 1997-03-28 | 1998-03-25 | Multiplex broadcast receiving method and receiver |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0972350A1 (en) |
| KR (1) | KR19980074982A (en) |
| CN (1) | CN1251700A (en) |
| WO (1) | WO1998044645A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7447488B2 (en) | 2005-07-07 | 2008-11-04 | Bose Corporation | Broadcast signal reception enhancing |
| US7502589B2 (en) | 2002-12-06 | 2009-03-10 | Bose Corporation | Supplemental broadcast data processing |
| CN109088688A (en) * | 2018-09-29 | 2018-12-25 | 四川省广播电视科研所 | The same broadcasting method that RDS and SCA is combined |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100709562B1 (en) * | 2005-09-14 | 2007-04-20 | 삼성전자주식회사 | Signal receiving apparatus and control method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03293823A (en) * | 1990-04-12 | 1991-12-25 | Pioneer Electron Corp | Radio receiver |
| DE4017756A1 (en) * | 1990-06-01 | 1991-12-05 | Grundig Emv | RDS BROADCAST RECEIVER WITH A DEVICE FOR SEARCHING CURRENTLY RECEIVABLE ALTERNATIVE FREQUENCIES |
| JP3452368B2 (en) * | 1991-07-11 | 2003-09-29 | パイオニア株式会社 | Audio device with FM broadcast receiver |
-
1997
- 1997-03-28 KR KR1019970011027A patent/KR19980074982A/en not_active Application Discontinuation
-
1998
- 1998-03-25 CN CN98803712A patent/CN1251700A/en active Pending
- 1998-03-25 WO PCT/KR1998/000060 patent/WO1998044645A1/en not_active Application Discontinuation
- 1998-03-25 EP EP98911244A patent/EP0972350A1/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7502589B2 (en) | 2002-12-06 | 2009-03-10 | Bose Corporation | Supplemental broadcast data processing |
| US7447488B2 (en) | 2005-07-07 | 2008-11-04 | Bose Corporation | Broadcast signal reception enhancing |
| CN109088688A (en) * | 2018-09-29 | 2018-12-25 | 四川省广播电视科研所 | The same broadcasting method that RDS and SCA is combined |
Also Published As
| Publication number | Publication date |
|---|---|
| KR19980074982A (en) | 1998-11-05 |
| WO1998044645A1 (en) | 1998-10-08 |
| EP0972350A1 (en) | 2000-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |