CN1251709A - Method of storing AF data for RDS receiver and apparatus thereof - Google Patents
Method of storing AF data for RDS receiver and apparatus thereof Download PDFInfo
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- CN1251709A CN1251709A CN98803785A CN98803785A CN1251709A CN 1251709 A CN1251709 A CN 1251709A CN 98803785 A CN98803785 A CN 98803785A CN 98803785 A CN98803785 A CN 98803785A CN 1251709 A CN1251709 A CN 1251709A
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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
- H04H60/27—Arrangements for recording or accumulating broadcast information or broadcast-related information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/20—Arrangements for broadcast or distribution of identical information via plural systems
- H04H20/22—Arrangements for broadcast of identical information via plural broadcast systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H2201/00—Aspects of broadcast communication
- H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
- H04H2201/13—Aspects of broadcast communication characterised by the type of broadcast system radio data system/radio broadcast data system [RDS/RBDS]
Abstract
Disclosed are a method of storing at a preset memory AF data which are included in RDS data and an RDS receiver for performing the method. The method includes the steps of: a) detecting a type and version code from a group received by the RDS receiver; b) storing one alternative frequency or two included in the group in the preset memory according to a program identification code of the group when the group is of 0A type and version; c) detecting a usage code of the group when the group is of 14A type and version; and d) storing one alternative frequency or two included in the group in the preset memory according to a program identification code in block 4 of the group when a code value of the usage code in one among 4 through 9. Therefore, through the RDS receiver travels from one broadcasting area to any other broadcasting area, a user can pick up a broadcasting program which he wants to hear by only pressing preset memory buttons without re-setting the preset memory.
Description
Technical field
The present invention relates to a kind of radio data system (hereinafter referred to as RDS), relate in particular to a kind of method and equipment thereof of replacement frequency (hereinafter referred to as AF) data of the RDS of storage receiver.
Background technology
Developed radio data system under presiding in European Broadcasting Union, this alliance has announced its technical specification, and by the RDS technical specification of CENELEC in approval on April 24th, 1992, i.e. European standard EN50067 is for the audience provides Additional Services.
According to the RDS technical specification, data are with group's form broadcasting.A group is one 104 a message, and it comprises and is called piece 1 four 26 piece to piece 4.16 are carried information in a piece, and 10 are used to prevent mistake.
First of each group always comprises a program identification (hereinafter referred to as PI) sign indicating number.First four of second of each group are assigned with four codes, this code regulation group's application.
According to the binary weighting of four codes, the group is called as type 0 to Class1 5.For two " version " of every type of definition." version " is by the 2nd the 5th (B
0) regulation as follows:
A) B
0=0:PI code only is inserted in the piece 1.This is called as version A, for example 0A, 1A or the like.
B) B
0=1:PI code is inserted on the piece 1 and piece 3 of all realm types.This is called as version B, for example 0B, 1B or the like.
First that has described second of each group above is assigned with 5 codes, this code regulation group's application and its version.
In 15 population types, can allow the information of the replacement frequency of RDS receiver realization automatic tuning process only to penetrate by type 0A and Class1 4A mass-sending.
Fig. 1 illustrates type 0A group's form.As shown in Figure 1, two AF code emissions in the piece 3 of group 0A usually.8 general expressions of code are with 100KHz VHF channel at interval.Type 0A group is given in the information on the different transmitters of identical or adjacent reception areas broadcasting same program, and makes receiver reduce the time that is transformed into another transmitter.
Fig. 2 illustrates Class1 4A group's form.As shown in Figure 2, exist two kinds of methods to be used for other networks (enhanced other network is hereinafter referred to as EON) characteristic transmission AF that is strengthening.They are method A (modification 4 of realm type 14A) and conversion frequency method (modification 5 to 9 of realm type 14A).To use 0A group's the identical mode coding method of method A A.The conversion frequency method provides a kind of device, and the VHF frequency of utilizing this device to have mutual contrast service can be relevant to the tuning service frequency of (as having among the 0A group).
Therefore, when from broadcasting station emission AF, the RDS receiver can utilize from the AF of broadcasting station emission and finish its automatic tuning process.
An example that is installed in the method for the RDS receiver selective reception frequency on the vehicle is published in U.S. Patent No. 5,428, in 825.According in U.S. Patent No. 5,428, the method of suggestion in 825, in a memory, and identical broadcast program is followed the trail of in the tabulation that receiver is replaced frequency according to storage when this vehicle turns back to the identical broadcasts coverage of network by the list storage of the replacement frequency of previous broadcasting station emission.In addition, the storage that is relevant to the broadcast wave frequency of reception in the operating period of the following the trail of identical radio programming tabulation of replacing frequency also with in order to follow the trail of the tabulation that identical broadcast program replaces frequency by the storage of broadcasting station emission is used together.Therefore, the RDS receiver when the RDS receiver turns back to radio network in radio network has received identical broadcast program, and this method can allow the RDS receiver to receive identical broadcast program and can not fail in following the trail of identical broadcast program.
Yet, in U.S. Patent No. 5,428, in 825 not suggestion be the RDS data of 14A type for other networks (hereinafter referred to as EON) that strengthen, how to handle the replacement frequency data.
Therefore, need a kind of method storage to be used for the replacement frequency of EON, this method can be used in and allows the RDS receiver to receive the broadcast program of being selected by the audience effectively when the receiving area of RDS receiver changes, and needs a kind of equipment that can realize this method.
Of the present invention open
The purpose of this invention is to provide a kind of method, this method can be stored effectively in the preset memory of RDS receiver and be replaced frequency to improve the performance of RDS receiver.
Another object of the present invention provides a kind of method, replaces frequency according to each realm type storage of RDS data.
Other purpose of the present invention provides a kind of equipment, this equipment can in preset memory, store replace frequency as tuned frequency automatically to be updated in the tuned frequency in the preset memory.
In order to reach these purposes, provide a kind of method of replacing frequency according to an aspect of the present invention in the preset memory storage for the RDS receiver.The RDS receiver comprises the preset memory that is divided into a plurality of memory spaces, distributes a program identification code for each of these spaces and comes so that a plurality of memory spaces are distinguished mutually.Each of a plurality of memory spaces is stored a plurality of tuned frequencies, and each of tuned frequency is used for the automatic tuning operation of RDS receiver.The method comprising the steps of: the type and the version that a) detect a group RDS data that received by the RDS receiver; B) replace frequencies for two that storage is included in a plurality of memory spaces among one the group according to the program identification code of this group when the group is 0A type and version; C) detection group's use code when the group is 14A type and version; And d) when the code value that uses code be that storage is included in a plurality of memory spaces among one the group one or two and replaces frequency according to the program identification code in group's the piece 4 during 4 between 9 one.
According to another aspect of the present invention, a kind of equipment that is used to store RDS receiver replacement frequency, this RDS receiver can receive by the RDS broadcast singal of broadcasting frequency emission and decoding RDS signal, this equipment comprises: a) preset memory that is used for the memory tuning frequency, each is used for the automatic tuning operation of RDS receiver in these frequencies, wherein preset memory is defined as a plurality of memory spaces, each memory tuning frequency of memory space and corresponding to the program identification in a broadcasting station; B) a plurality of preset button are used among at the preset memory memory space one of when pressing of a plurality of preset button one or more tuned frequencies of manual storage and are used for selecting of memory space; C) an AF memory is used for according to replacing frequency so that follow the trail of broadcast program by changing based on the receive frequency of the RDS receiver of replacing frequency corresponding to the program identification code storage of replacing frequency; And d) control device be used for the broadcast program that receives by the RDS receiver according to the storage of program identification sign indicating number the replacement frequency at the AF memory, and when the RDS signal comprises tuned frequency, be used for selecting of a plurality of memory spaces of preset memory so that storage replacement frequency is as tuned frequency in the memory space of selecting according to program identification code.
According to the present invention, though the RDS receiver moves to any other network from a network, RDS receiver of the present invention can only need not be reset preset memory and just receive the audience and want constantly to be upgraded the broadcast program listened because be stored in the tuned frequency of preset memory by pressing preset button.
With reference to accompanying drawing, can understand the front better from the detailed description of the following preferred embodiment of the present invention with other purpose, aspect and advantage, wherein:
Fig. 1 illustrates type 0A group's form;
Fig. 2 illustrates Class1 4A group's form;
Fig. 3 is the calcspar that embodiments of the invention illustrate the RDS receiver;
Fig. 4 has illustrated the preset memory of describing among Fig. 3;
Fig. 5 A and 5B are flow charts that the RDS operation of receiver of describing among Fig. 3 is shown.
The preferred embodiments of the present invention are described below with reference to accompanying drawings.
Fig. 3 is the calcspar that embodiments of the invention illustrate the RDS receiver.
In Fig. 3, the RDS receiver comprises tuner 102, FM demodulator 103, stereo decoder 104,57KHz band pass filter 105, RDS decoder 106, AF memory 107, preset memory 108, importation 109, level detector 110, A/D converter 111 and controller 112.
In the broadcast singal that the control signal that tuner 102 produces according to slave controller 112 is selected to import through antenna 101 any one.The centre frequency of the broadcast singal of being selected by tuner 102 is converted to intermediate frequency (hereinafter referred to as IF), and intermediate-freuqncy signal was amplified by IF amplifying stage (not shown among Fig. 3) before outputing to FM demodulator 103.Therefore FM demodulator 103 demodulation IF signals draw a multiplex signal that comprises the RDS signal, and export this multiplex signal respectively to stereo decoder 104 and 57KHz band pass filter 105.
On the other hand, 105 filtering of 57KHz band pass filter are from the multiplex signal of FM demodulator 103 inputs, and output RDS signal is to RDS decoder 106.
Therefore RDS decoder 106 decoding RDS signals are drawn the RDS data and are exported these RDS data to controller 112.
The a plurality of replacement frequencies of AF memory 108 storages.A plurality of replacement frequencies are stored in the AF memory 108 that is relevant to the PI code.
The preset memory of describing in Fig. 4 key diagram 3;
As shown in Figure 4, preset memory 108 storage be used for be tuned to a plurality of tuned frequencies in each broadcasting station.Preset memory 108 is defined as a plurality of memory spaces, and the PI assignment of code arrives each of a plurality of memory spaces.Each of a plurality of memory spaces is divided into two storage areas, and each can store 12 tuned frequencies at most in them.One in two storage areas will be called the TN storage area, and storage is used for the tuned frequency (hereinafter referred to as the TN tuned frequency) of this network, and each in them makes and may allow the RDS receiver to receive identical broadcast program at identical radio network.In two storage areas another will be called the ON storage area, be used to store the tuned frequency (hereinafter referred to as the ON tuned frequency) of other radio networks.Each ON frequency allows the RDS receiver to receive identical broadcast program at any other radio network.
Field detection signal of level detector 110 output, basis is based on the DC level from the incoming level conversion of the broadcast singal of the IF signal of tuner 102 outputs.
The DC level of A/D converter 111 switching field detection signals is a digital signal, and exports this digital signal to controller 112.
When preset button M1 in M6 is pressed after frequency band selector button 109 has been selected FM1 in the FM3, selected memory space of preset memory 108.Controller 112 is read tuned frequency from the memory space of the selection of preset memory 108, and therefore makes tuner 102 each receiving broadcast signal successively according to tuned frequency according to each control tuner 102 in the tuned frequency.
At this moment, the received signal that received by tuner 102 according to the tuned frequency comparison of controller 112 is so that rather than any other tuned frequency in the tuned frequency of selecting to allow tuner 102 to receive the selection broadcast program with maximum incoming level.
In addition, as mentioned above, when the broadcast singal that receives comprised the RDS signal, the RDS signal was detected by 57KHz band pass filter 105.RDS signal by 57KHz band pass filter 105 is deciphered by RDS decoder 106, and is provided to controller 112.When the RDS data were input to controller 112, controller was at first according to being included in every group of type code and edition code application of determining the RDS data in the RDS data, and used processing RDS data according to it.
When the RDS data comprised the replacement frequency, controller 112 was replaced frequencies according to PI code thus at AF memory 107 and preset memory 108 storages.
When the RDS data comprised the 0A genre cluster, controller 112 was made replacing list of frequency and will replacing list of frequency according to the PI code and is stored in AF memory 107 and PI code together.Then, whether controller 112 identification PI codes are equal to any PI code of each memory space that is stored in preset memory 108.
When PI code storage during in preset memory 108, the TN storage area of frequencies below PI replaced in controller 112 storages.On the contrary, when the PI code was not stored in preset memory 108, controller 112 distributed the PI code to any one of preset memory 108 memory spaces and the TN storage area in the memory allocated space of storage replacement frequency below the PI code.
In addition, when the RDS data comprised a 14A genre cluster, whether controller 112 identification 14A genre cluster comprised one or two replacement frequency of the use code with it.When the 14A genre cluster comprises that one or two replaces frequency, controller 112 storages be included in the 14A genre cluster one or two replace frequency in AF memory 107 with the piece 4 of 14A genre cluster in the PI code together.
Then, whether controller 112 identification PI codes are equal to any PI code that is stored in preset memory 108.When PI code storage during in preset memory 108, one or two replaces the ON storage area of frequency at the memory space of storage PI code controller 112 storages.On the contrary, when without any the memory space of the preset memory 108 of storage PI code, controller 108 is updated in the PI code in the preset memory 108 and stores one or two and replace the ON storage area of frequency below the PI code.
With reference to accompanying drawing, explain the operation of RDS receiver of the present invention below.
When the user selects FM1 in the FM3 and by pressing when six M1 of first preset button to the to M6 opens with frequency band selector button 1091, controller 112 is from reading tuned frequency corresponding to the memory space of selecting frequency band and preset button, and according to tuned frequency control tuner 102 receiving broadcast signals.Each the broadcast singal level that receives by tuned frequency is detected by level detector 110, and outputs to controller 112 after converting digital signal to by A/D converter 111.Then, controller 112 control tuners 102 receive broadcast singal rather than any other signal based on each broadcast singal level of maximum level.
Broadcast singal is input to FM demodulator 103.Therefore FM demodulator 103 demodulation broadcast singals produce a multiplex signal, and export multiplex signal respectively to stereo decoder 104 and 57KHz band pass filter 105.
Stereo decoder decoding multiplex signal, produce a left side and right audio signal, and provide a left side and right audio signal to low frequency amplifier (not shown) at Fig. 3, this amplifier loud speaker left and right audio signal driving RDS receiver, so output is left and right audio signal arrives the outside.
Simultaneously, as mentioned above, when broadcast singal comprised the RDS signal, the RDS signal that is included in the multiplex signal was detected and is input to RDS decoder 106 by 57KHz band pass filter 105.RDS decoder 106 decoding RDS signals therefore produce the RDS data, and output RDS data are to controller 112.The application of controller 112 identification RDS data, and according to the application processing RDS data of RDS data.
In AF memory 107 and preset memory 108, store the operation of replacing frequency below with reference to Fig. 5 A and 5B explanation the present invention.
Fig. 5 A and 5B are flow charts that is illustrated in RDS receiver operation illustrated in fig. 3.
When the RDS data when RDS decoder 106 outputs to controller 112, controller 112 at first detects type and the edition code that is included in the RDS data every group, therefore determines every kind of application (ST1) of these groups.
After step 1 detected every type of these groups and edition code, whether every type of controller 112 these groups of identification and version were 0A (ST2).
When all types of these groups and version were 0A, controller 112 was made the tabulation of replacing frequency, and the tabulation of storage group's replacement frequency and PI code in AF memory 107 (ST3, ST4).
Whether controller 112 identification PI codes are stored in (ST5) in the preset memory 108.
When PI code storage during in preset memory 108, controller 112 storages are replaced the tabulation of frequencies at the TN of the memory space of PI code storage storage area (ST6).
On the contrary, when the PI code was not stored in preset memory, whether controller 112 identification preset memory 108 had the memory space (ST7) without any the sky of PI code storage.
When preset memory 108 had empty memory space, controller 112 distributed the memory space of PI code to the sky of preset memory 108, and storage is replaced list of frequency as tuned frequency (ST8) below the PI code.
When preset memory 108 was filled up the PI code, controller 112 detected a PI code that does not have renewal recently from preset memory 108.And after the PI code that replaces with new PI code not have to use, storage replacement list of frequency is as tuned frequency (ST9) below the PI code of controller 112 in the memory space of storage PI code.
In step 2, when the RDS data comprise that one is not the group time of 0A type, controller 112 determines whether these groups are 14A type (ST10).
When group's type and version were 14A, controller 112 was read the use code from the group, and the code value of determining group's use code whether be in 4 to 9 one (ST11, ST12).
When code value is 4 in 9 one, one of controller 112 storage replace frequencies (ON) or two in AF memory 107 with the PI code (ON) of the piece 4 that is assigned to the group (ST13) together.
By step 14, whether controller 112 identification PI codes (ON) are stored in (ST14) in the preset memory 108.
When PI code (ON) was stored in the preset memory 108, one or two replaced the ON storage area (ST15) of frequency at the memory space of storage PI code controller 112 storages.
On the contrary, when PI code (ON) when not being stored in preset memory 108, whether controller 112 identification preset memory 108 have a memory space (ST16) of not storing the sky of PI code.
When preset memory 108 has the memory space of any sky, controller 112 distributes the memory space of PI code (ON) to the sky of preset memory 108, and stores one or two and replace frequency as a tuned frequency or two (ST17) below the PI code.
When preset memory 108 was filled up the PI code, controller 112 detected a PI code that does not have renewal recently from preset memory 108.And after the PI code that replaces with new PI code (ON) not having to use, controller 112 is stored one or two and is replaced a tuned frequency or two (ST18) of frequency as storage PI code memory space below PI code (ON).
The RDS receiver can be stored in preset memory according to the PI code of replacing frequency and replace frequency as tuned frequency.
Therefore, though the RDS receiver moves to any other network from a network, RDS receiver of the present invention can only need not be reset preset memory and just receive him and want constantly to be upgraded the broadcast program listened because be stored in the tuned frequency of preset memory by pressing preset button.
Although described the present invention, person of skill in the art will appreciate that the present invention who realizes by modification is in the spirit and scope of the appended claims according to preferred two embodiment.
Claims (16)
1. the preset memory at the RDS receiver is stored the method for replacing frequency, preset memory is divided into a plurality of memory spaces, distributing a program identification code for each of these spaces comes so that a plurality of memory spaces are distinguished mutually, each of a plurality of memory spaces is stored a plurality of tuned frequencies, each of tuned frequency is used for the automatic tuning operation of RDS receiver, and the method comprising the steps of:
A) detection is by the type and the version of a group RDS data of RDS receiver reception;
B) replace frequencies for two that storage is included in a plurality of memory spaces among one the group according to the program identification code of this group when the group is 0A type and version;
C) detection group's use code when the group is 14A type and version; And
D) when the code value that uses code be that storage is included in a plurality of memory spaces among one the group one or two and replaces frequency according to the program identification code in group's the piece 4 during 4 between 9 one.
2. the method for claim 1, wherein said step b) comprises step:
B-1) when the group be the 0A type with version the time search preset memory program identification code identical with the program identification code of this group; And
B-2) two of storages are replaced frequency in of a plurality of memory spaces, and the program identification code identical with this group program identification code is stored in this memory space, thereby upgrade a plurality of tuned frequencies of preset memory.
3. the method for claim 1, wherein said step d) comprises step:
D-1) determine with group piece 4 in the identical program identification code of program identification code whether be stored in the preset memory;
D-2) store one or two replacement frequency of this group in of a plurality of memory spaces, when the program identification code identical with the program identification code of program identification in the piece 4 of this group was stored in the preset memory, the program identification code identical with program identification code in the piece 4 of this group was assigned to this memory space;
D-3) will be assigned in a plurality of memory spaces one in the program identification code in group's the piece 4, when preset memory lacks program identification code, lack program identification code from this memory space; And
D-4) store one or two and replace frequency in a plurality of memory spaces, by steps d-3) distribute program identification code in the piece 4 of this group to this memory space.
4. method of storing the replacement frequency of RDS receiver, the RDS receiver comprises that a preset memory that is used for the memory tuning frequency and one are used to store one and replace frequency or a plurality of AF memories so that follow the trail of broadcast program by changing based on a receive frequency of replacing frequency or a plurality of RDS receiver, wherein each in the tuned frequency is used for the automatic tuning operation of RDS receiver, and the method comprising the steps of:
A) detection is by the type and the version of a group RDS data of RDS receiver reception;
B) replace frequencies in the AF memory for two that when group's type and version are 0A, are included among the group according to the program identification code storage of this group;
C) whether the program identification code of identification 0A genre cluster is equal to any program identification code that is stored in the preset memory;
D) when the program identification code identical with the program identification code of 0A genre cluster is stored in the preset memory, store two replacement frequencies of 0A genre cluster in preset memory according to the program identification code of 0A genre cluster;
E) when preset memory lacks the program identification code identical with 0A genre cluster program identification code, distribute program identification code to preset memory, and store two replacement frequencies of 0A genre cluster in preset memory according to the program identification code of 0A genre cluster;
F) when being 14A, group's type and version detect the use code of this group;
G) whether to use the code value of code be in 4 to 9 one in identification;
H) when the code value that uses code is 4 in 9 one, storage is included among the 14A group one or two and replaces frequency in the AF memory according to the program identification code in 14A group's the piece 4;
I) whether the program identification code in identification 14A group's the piece 4 is equal to any program identification code that is stored in the preset memory;
J) when the program identification code identical with the program identification code of 14A genre cluster is stored in the preset memory, store one or two replacement frequency of 14A genre cluster in preset memory according to the program identification code in 14A group's piece 4; And
K) when preset memory lacks the identical program identification code of program identification code with the piece 4 of 14A genre cluster, program identification code in the piece 4 of 14A genre cluster is assigned to preset memory, and stores one or two replacement frequency of 14A genre cluster in preset memory according to the program identification code in the piece 4 of 14A genre cluster.
5. method as claimed in claim 4, wherein said preset memory is divided into a plurality of memory spaces, distribute each program identification code to each memory space so that distinguish a plurality of memory spaces mutually, wherein each of a plurality of memory spaces is stored a plurality of tuned frequencies, each of tuned frequency is used for the automatic tuning operation of RDS receiver
Wherein said step d) comprises step:
D-1) when the group be the 0A type with version the time search preset memory program identification code identical with the program identification code of 0A genre cluster; And
D-2) two of storages are replaced frequency in of a plurality of memory spaces, and the program identification code identical with 0A genre cluster program identification code is stored in this memory space, thereby upgrade the tuned frequency of preset memory.
6. method as claimed in claim 5, wherein said step j) comprise step:
J-1) the identical program identification code of program identification code of when in preset memory, distributing the identical program identification code of program identification code with the piece 4 of 14A genre cluster, searching for the piece 4 of preset memory and 14A genre cluster; And
J-2) store one or two and replace frequency in of a plurality of memory spaces, the program identification code identical with the program identification code of the piece 4 of 14A genre cluster is stored in this memory space, thereby upgrades the tuned frequency of preset memory.
7. method as claimed in claim 6, wherein each of a plurality of memory spaces is divided into first storage area of the replacement frequency that is used to store the 0A genre cluster and is used to store second storage area of the replacement frequency of 14A genre cluster.
8. equipment that is used to store the replacement frequency of RDS receiver, this RDS receiver can receive by the RDS broadcast singal of broadcasting frequency emission and decoding RDS signal, and this equipment comprises:
A) preset memory that is used for the memory tuning frequency, each is used for the automatic tuning operation of RDS receiver in these frequencies, wherein preset memory is divided into a plurality of memory spaces, and each of memory space is stored at least one tuned frequency and is assigned with each program identification code corresponding to each broadcasting station;
B) a plurality of preset button are used for when pressing of a plurality of preset button one or more tuned frequencies of manual storage in of a plurality of memory spaces of preset memory and be used for selecting of memory space;
C) AF memory is used for replacing frequency so that by changing the receiver frequency tracking broadcast program based on the RDS receiver of replacing frequency according to the program identification code storage of replacing frequency; And
D) control device, the replacement frequency that is used for being received by the RDS receiver according to the program identification sign indicating number storage of replacing frequency is at the AF memory, and is used for when replacing frequency selecting of a plurality of memory spaces of preset memory according to the program identification sign indicating number so that selecting in the memory space storage replacement frequency as tuned frequency when the RDS signal comprises.
9. equipment as claimed in claim 8, wherein said control device detect the type that is included in the RDS signal every group and version so that whether identification RDS signal comprises the replacement frequency.
10. equipment as claimed in claim 9, wherein described control device is stored in preset memory according to the program identification code of piece 4 in the group and is replaced frequency as tuned frequency when the group is the 14A type.
11. equipment as claimed in claim 9, wherein when group's type and edition code when being 14A described control device detect one and use code so that whether identification RDS signal comprises the replacement frequency.
12. equipment as claimed in claim 11, wherein each of a plurality of memory spaces of preset memory is divided into first storage area and second storage area, wherein frequency is replaced in the storage of first storage area when the group is the 0A type, and frequency is replaced in the storage of second storage area when the group is 14A.
13. equipment that is used to store the replacement frequency of RDS receiver, the RDS receiver comprises that preset memory is used for the memory tuning frequency one by one, in the tuned frequency each is used for the automatic tuning operation according to program identification code RDS receiver, comprise that also an AF memory is used to store the replacement frequency so that follow the trail of a broadcast program by changing based on the receive frequency of the RDS receiver of replacing frequency, this equipment comprises:
First device is used to detect type and version by the RDS data group of RDS receiver reception;
Second device, be used for when group's type and version when being 0A the program identification code storage according to this group be included in two replacement frequencies of group in the AF memory;
The 3rd device, whether the program identification code that is used for discerning the 0A genre cluster is equal to any program identification code that is stored in preset memory;
The 4th device is used for storing two replacement frequencies of 0A genre cluster in preset memory according to the program identification code of 0A genre cluster when the program identification code identical with 0A genre cluster program identification code is stored in preset memory;
The 5th device, be used for when preset memory lacks the identical program identification code of program identification code with the 0A genre cluster, distributing program identification code to preset memory, and according to two replacement frequencies of the program identification code storage 0A genre cluster of 0A genre cluster in preset memory.
The 6th device is used for the use code that detects when being 14A group when group's type and version;
The 7th device is used for discerning the code value that uses code and whether is 4 to 9 one.
The 8th device is used for when the code value that uses code is 4 to 9 one, and storage is included in one or two replacement frequency among the 14A group in the AF memory according to the program identification code in 14A group's piece 4;
The 9th device, whether the program identification code that is used for being identified in 14A group's piece 4 is equal to any program identification code that is stored in the preset memory;
The tenth device is used for when the program identification code identical with the program identification code of 14A genre cluster is stored in preset memory, stores one or two replacement frequency of 14A genre cluster in preset memory according to the program identification code in 14A group's the piece 4; And
The 11 device, the program identification code of piece 4 that is used for distributing the 14A genre cluster when preset memory lacks the identical program identification code of program identification code with the piece 4 of 14A genre cluster is to preset memory, and according to one or two replacement frequency of the storage of the program identification code in the piece 4 of 14A genre cluster 14A genre cluster in preset memory.
14. equipment as claimed in claim 13, wherein said preset memory is divided into a plurality of memory spaces, each program identification code is assigned to each memory space so that distinguish a plurality of memory spaces mutually, wherein each of a plurality of memory spaces is stored a plurality of tuned frequencies, each tuned frequency is used for the automatic tuning operation of RDS receiver
Wherein said the 4th device comprises searcher, be used for when the group be the 0A type with version the time search preset memory program identification code identical with the program identification code of 0A genre cluster; And
Storage device is used to store two of replacing frequency at a plurality of memory spaces, stores the program identification code identical with the program identification code of 0A genre cluster at this memory space, thereby upgrades the tuned frequency of preset memory.
15. method as claimed in claim 14, wherein said the tenth device comprises searcher, is used for the identical program identification code of program identification code of the piece 4 of search preset memory and 14A genre cluster when the program identification code identical with the program identification code of the piece 4 of 14A genre cluster is distributed in preset memory; And
Storage device is used to store one or two and replaces frequency at a plurality of memory spaces, and the storage program identification code identical with the program identification code of the piece 4 of 14A genre cluster be at this memory space, makes the tuned frequency of renewal preset memory.
16. equipment as claimed in claim 15, wherein each memory space of preset memory is divided into first storage area and second storage area, wherein frequency is replaced in the storage of first storage area when the group is the 0A type, and frequency is replaced in the storage of second storage area when the group is 14A.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1997/11034 | 1997-03-28 | ||
| KR1019970011034A KR19980074989A (en) | 1997-03-28 | 1997-03-28 | Ioen information storage processing method of car audio for RDS broadcasting reception |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1251709A true CN1251709A (en) | 2000-04-26 |
Family
ID=19501127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98803785A Pending CN1251709A (en) | 1997-03-28 | 1998-03-27 | Method of storing AF data for RDS receiver and apparatus thereof |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1013016A1 (en) |
| KR (1) | KR19980074989A (en) |
| CN (1) | CN1251709A (en) |
| WO (1) | WO1998044663A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101129003B (en) * | 2004-12-23 | 2012-11-14 | 索尼爱立信移动通讯股份有限公司 | Selecting/acquiring desired multimedia content |
| CN101841378B (en) * | 2009-03-19 | 2014-11-05 | 阿尔派株式会社 | Broadcasting receiver and method for presetting broadcasting frequency thereof |
| CN105915260A (en) * | 2016-05-31 | 2016-08-31 | 李向国 | Frequency conversion method of radio frequency with RDS signal |
| CN101142772B (en) * | 2005-04-05 | 2016-10-26 | 诺基亚技术有限公司 | To the FM radio receiver method and apparatus with low-power FM transmission voice data with RDS ability |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2406754A (en) | 2003-10-03 | 2005-04-06 | Nokia Corp | Same or similar service handover |
| US8503937B2 (en) | 2007-07-10 | 2013-08-06 | Belkin International, Inc. | Method and system for selecting, transmitting, and receiving an unused carrier frequency and transmitting over the unused carrier frequency |
| US8509695B2 (en) | 2007-07-10 | 2013-08-13 | Belkin International, Inc. | Method of selecting and broadcasting over a transmission frequency and device for the same |
| US7979027B2 (en) | 2008-02-28 | 2011-07-12 | Belkin International, Inc. | Method and system for selecting, transmitting, and receiving an unused carrier frequency and transmitting over the unused carrier frequency |
| KR101046618B1 (en) * | 2008-07-30 | 2011-07-05 | 삼성전자주식회사 | Alternative Frequency Searching Method of Radio Data System and Portable Terminal for the Same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2658538B2 (en) * | 1990-09-14 | 1997-09-30 | 三菱電機株式会社 | RDS receiver |
| EP0507530B1 (en) * | 1991-04-01 | 1998-06-24 | Sony Corporation | Radio data system receiver |
| DE4125433C1 (en) * | 1991-08-01 | 1993-01-07 | Blaupunkt-Werke Gmbh, 3200 Hildesheim, De | VHF car radio with RDS and traffic news decoders - has memories for diversity reception with automatic switch=over to other transmitting station chain when leaving geographical region |
| JP3258171B2 (en) * | 1994-06-08 | 2002-02-18 | パイオニア株式会社 | PTY burst signal detection method |
-
1997
- 1997-03-28 KR KR1019970011034A patent/KR19980074989A/en not_active Application Discontinuation
-
1998
- 1998-03-27 EP EP98911250A patent/EP1013016A1/en not_active Withdrawn
- 1998-03-27 WO PCT/KR1998/000066 patent/WO1998044663A1/en not_active Application Discontinuation
- 1998-03-27 CN CN98803785A patent/CN1251709A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101129003B (en) * | 2004-12-23 | 2012-11-14 | 索尼爱立信移动通讯股份有限公司 | Selecting/acquiring desired multimedia content |
| CN101142772B (en) * | 2005-04-05 | 2016-10-26 | 诺基亚技术有限公司 | To the FM radio receiver method and apparatus with low-power FM transmission voice data with RDS ability |
| CN101841378B (en) * | 2009-03-19 | 2014-11-05 | 阿尔派株式会社 | Broadcasting receiver and method for presetting broadcasting frequency thereof |
| CN105915260A (en) * | 2016-05-31 | 2016-08-31 | 李向国 | Frequency conversion method of radio frequency with RDS signal |
| CN105915260B (en) * | 2016-05-31 | 2019-02-15 | 李向国 | A kind of rf frequency transform method carrying RDS signal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1998044663A1 (en) | 1998-10-08 |
| KR19980074989A (en) | 1998-11-05 |
| EP1013016A1 (en) | 2000-06-28 |
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