JPH08191252A - Receiver for multiplex broadcasting - Google Patents

Abstract

PURPOSE: To accurately and quickly inform a user of TMC data by updating the stored contents of a memory at the time of receiving TMC data included in multiplex broadcasting, and when a microcomputer judges the updating, turning on a TMC indicator to display it. CONSTITUTION: An RDS decoder extract TMC data to be traffic information from a broadcast signal received from an FM tuner 12 and TMC system microcomputers, 24, 25 store the TMC data in a memory 20. The access/setting of TMC data in a required area is inputted by the operation of an operation part 21, the microcomputer 25 judges whether the memory 20 stores the TMC data in the required area or not. When the judgement is YES and the microcomputer 25 judges the storage updating of the TMC data, the TMC indicator 30 is turned on through the microcomputer 24. Consequently a user quickly and accurately recognize that the data stored in the memory 20 have been updated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multiplex broadcast receiver for receiving data multiplexed on broadcast waves, such as traffic information.

[0002]

2. Description of the Related Art In recent years, traffic accidents, road works, etc. have frequently occurred along with an increase in traffic volume, which causes traffic congestion. Traffic information for notifying such traffic congestion occurrence, etc. There has been a trend to alleviate the traffic congestion and the like by notifying the driving driver via radio waves such as radio broadcasting.

In view of such a trend, for example, as a radio broadcast, an entertainment program band or a news program band such as a normal broadcast program is used, and the traffic information is announced in the program band so that the traffic information concerned is announced. There is a service that provides to radio listeners.

[0004] However, according to such a service, a radio listener who is not interested in the traffic information hears the traffic information that he / she does not want to hear, and the broadcast program is interrupted, which causes a great deal of damage to the radio listener. A situation that caused discomfort occurred.

In order to overcome these problems, there is a traffic information broadcasting station which mainly broadcasts traffic information programs which provide traffic information to radio listeners. It should be noted that the traffic information broadcasting station also broadcasts not only traffic information programs but also ordinary broadcast programs.

As such traffic information broadcasting, ARI (Autofahrer Rundfunkt Information) broadcasting is widely known, mainly in Europe.

The ARI broadcast is a multiplex broadcast in which data of a program related to traffic information is multiplexed with an FM broadcast radio wave which is a normal broadcast radio wave.

Now, the ARI broadcast will be described.

The data multiplexed in the ARI broadcast includes an SK (Sender Kennung) signal which is an identification signal indicating that the receiving broadcast station is a traffic information broadcast station, and a broadcast program related to the traffic information. There is a DK (Durchsage kennung) signal which is an identification signal indicating that the start of the.

According to the ARI-broadcast-compatible receiver that receives the ARI broadcast, the traffic information broadcast station is identified according to the SK signal, and the traffic information broadcast program is identified according to the DK signal. Since these identification notifications are displayed and output on the display unit of the receiving apparatus, it is very convenient for the driving driver who wants the traffic information because the traffic information broadcasting station and the start of the broadcasting can be recognized.

In addition to the ARI broadcast, there is RDS broadcast. The RDS broadcast is a multiplex broadcast widely known mainly in Europe as in the ARI broadcast.
In addition to the program-related data related to traffic information compared to I-broadcasting, data such as program-related information related to a normal broadcast program is multiplexed on a normal FM broadcast wave, and the multiplexed data is decoded by the receiving side. By doing so, various services are provided to listeners of the radio broadcast.

The RDS broadcasting is effective mainly in an area where many broadcasting stations form a network to broadcast the same program, and it is effective outside the frequency band of the FM modulated wave.
The third harmonic of the stereo pilot signal of kHz is 5
A radio data signal (hereinafter, simply referred to as RDS data) is obtained by amplitude-modulating the subcarrier with a data signal indicating data related to program information, traffic information, etc., which is filtered and bi-phase coded with 7 kHz as a subcarrier. Then, the amplitude-modulated subcarrier is frequency-modulated as a main carrier to be broadcast.

FIG. 3 is an explanatory diagram showing the basic baseband coding structure of the RDS data.

The RDS data is 1 as shown in FIG.
Each group is composed of 4 blocks of 26 bits, each group consisting of 04 bits as one group, and each block is composed of a 16-bit information word (m0
˜m15) and a 10-bit check word and offset word (c′0 to c′9). The R
The transmission rate of DS data is 1187.5 bit / sec
Is.

In block A, program identification data (hereinafter simply referred to as PI code) indicating a network composed of country name data and program data is shown, and in block B, it is a traffic information broadcasting station that broadcasts traffic information programs. The traffic information broadcasting station identification data (hereinafter, simply referred to as TP code) and the traffic announcement identification data (hereinafter, simply referred to as TA code) indicating that the broadcast program related to the traffic information starts are the same program in the C block. Data relating to the frequency of each station of the network station group that is broadcasting, that is, alternative station frequency data (hereinafter simply referred to as AF data)
However, in the block D, broadcasting station name data such as a broadcasting station name and a network name (hereinafter, simply referred to as PS data) are arranged. The PI code is composed of three elements, that is, 4-bit country name data, 4-bit area data, and 8-bit program data.

Further, each group has four groups depending on the contents.
The bits are classified into 16 types of types 0 to 15 and two versions A and B are defined for each type (0 to 15). These identification codes are arranged in block B. There is.

Normally, as the type defined in the version A, the block A always includes the PI code, but as the type defined in the version B, the block is added in addition to the block A. The C code also includes the PI code. However, the version B concerned
Very few types are sent.

RDS for receiving such RDS data
According to the receiving device, the AF data obtained by demodulating at the time of receiving the RDS data is captured and stored, and when the reception level at the currently receiving broadcasting station is lowered due to disturbance such as multipath interference, first. There is an automatic tracking system that selects an alternative station that is another network station having a good reception level based on the stored AF data, and by the automatic tracking system, without being affected by disturbance,
It is possible to provide the user with a broadcast of the same program that is always in a good reception state.

Further, according to the RDS broadcasting-compatible receiving device for receiving the RDS broadcasting, the traffic information broadcasting station is identified according to the TP code, and the traffic information broadcasting program is performed according to the TA code. Since the identification is performed and these identification notifications are displayed and output on the display unit of the receiving device, it is very convenient for the driving driver who wants the traffic information because it can recognize the traffic information broadcasting station and the start of the program broadcasting. Is.

However, the ARI broadcast and the RD
According to the S broadcasting, there is a first problem that a broadcasting frame of a traffic information broadcasting program is enlarged in order to provide a large amount of traffic information to a user due to traffic congestion during commuting or vacation.

Further, even a traffic information broadcasting station which generally broadcasts traffic information programs does not sequentially broadcast the traffic information to users, but the traffic information is broadcast every hour or every 30 minutes. It is broadcast as a program. Therefore, there is a second problem that the user is involved in the traffic jam, for example, when he / she hits a point where the traffic jam occurs during the time when the traffic information program is not broadcast.

Further, in this traffic information program, even if only the traffic information desired by the user, for example, the traffic information in the area A, is desired to be heard, the traffic information in other areas must be listened to. There was a third problem that it was not easy to use.

In addition, in the traffic information program, when the driving driver moves across multiple countries in a region such as Europe where the language is different, the language being listened to cannot be understood by the driving driver. In the case of a national language, there is a fourth problem that the traffic information cannot be understood in the language even if the user listens to the traffic information program.

Therefore, in order to overcome these first to fourth problems, the TMC (Traffi) using the RDS broadcasting is used.
c Message Channel) is being considered.

The TMC is used for broadcasting using, for example, the 8A group in the RDS data, that is, the group 8 defined in version A. FIG.
[Fig. 3] is an explanatory diagram showing a baseband coding structure of an 8A group for transmitting the TMC.

In FIG. 4, block A contains a PI code. The block B includes a 4-bit group type identification code for identifying the 8A group type and various codes related to a message management and extension system. For example, a 1-bit short indicating that the message is a short message. Message code (Sh
ort Message; S) and a single group message (Si
1-bit group message identification code (G) indicating whether a single message is transmitted over a plurality of group data (Multi Group Message), and an approximate congestion time. 3-bit congestion time code (Duration and Persistence of
the diturbance (DP) etc. The traffic jam time code (DP) is used to indicate the traffic jam time in eight stages (0 to 4 hours).

In the block C, for example, a detour identification code (Diversion bit; D) indicating the presence or absence of a detour and a 3-bit EXT including a location offset address are included.
ENT code and 11-bit EVEN indicating information such as weather conditions, construction, traffic congestion, public transport, etc.
And a T code.

Further, in block D, 1 indicating position information is shown.
It contains a 6-bit LOCATION code.

In the LOCATION code, for example, in Germany, for example, addresses 1 to 16 are assigned to each state, followed by counties, administrative divisions and local autonomous regions, and then main roads such as autobahns and national highways. It is assigned and subsequently subdivided into specific areas such as each area and road entrances and exits in a hierarchical order such as an autobahn exit, a grade separation and a service area, and then a road from the main road.

Further, if the extension system using these codes is used, various kinds of information and the like which appropriately instruct a detour for traffic congestion are transmitted.

Next, a general TMC-compatible receiving apparatus for receiving and decoding the TMC data will be described. Figure 5
FIG. 3 is a block diagram showing an outline of a general TMC-compatible receiver.

In FIG. 5, the TMC-compatible receiver is provided with not only a radio tuner function but also a CD autochanger function and a tape deck function, which are not shown,
The radio tuner function includes a receiving antenna 11 that receives a broadcast wave including a program broadcast and TMC data such as RDS data that is multiplexed in the program broadcast, and a desired reception antenna 11 that receives the broadcast wave. FM tuner 12 for receiving FM broadcast waves, and the receiving antenna 1
AM tuner 1 for receiving desired AM broadcast radio wave at 1
3, a system tuning unit 14 for switching the tuning system of the FM tuner 12 and the AM tuner 13,
A source switching unit 16 for switching and selecting a broadcast signal received by the M tuner 12 or the AM tuner 13 and an audio signal generated via a card interface 15 described later.
An audio amplifier 17 for amplifying the switching-selected audio signal or broadcast signal, a speaker 18 for audio output of the amplified audio signal or broadcast signal, and an RDS from the broadcast signal received by the FM tuner 12. An RDS decoder 19 for extracting data, a memory 20 for storing various data such as RDS data extracted by the RDS decoder 19, an operation unit 21 for inputting various commands, and various information for display output. A display unit 22, a card interface 15 that connects the receiving device to a TMC card 23 described later, and a TMC that extracts and controls TMC data in RDS data received based on the data recorded in the TMC card 23. A data microcomputer 24,
It has a system microcomputer 25 for controlling the entire receiving device.

The operation section 21 has a TMC key 21a for calling TMC data and a preset key group 21b for calling a preset desired broadcasting station by one-touch operation.

Further, although the memory 20 has a plurality of memory areas for storing various data, among them, a preset key memory area corresponding to each preset key group 21b (hereinafter, simply referred to as a preset area). There is).

The TMC card 23 has data contents corresponding to each code in the TMC data included in the transmitted RDS data and language data for converting the data contents into the user's native language. Etc. are stored.

Further, the TMC data microcomputer 24
Extracts only the TMC data from the RDS data extracted by the RDS decoder 19, and extracts the extracted TM.
The data content of the TMC data is decoded based on the C data and the data obtained from the TMC card 23, the decoded TMC data is stored in the memory 20, and the TMC data stored in the memory 20 is stored. The voice signal and the display signal are generated based on the language data of the TMC card 23.

The operation of the TMC-compatible receiver will be described below.

The RDS decoder 19 of the TMC-compatible receiving apparatus has the receiving antenna 11 and the FM tuner 12.
RDS data is extracted from the FM broadcast signal obtained via the, and only TMC data is supplied from the extracted RDS data to the TMC microcomputer 24.

The TMC microcomputer 24 decodes the TMC data obtained from the RDS decoder 19 based on the data obtained from the TMC card 23 via the card interface 15, and the decrypted TMC data is used for the system. The memory 2 via the microcomputer 25
Store at 0.

Next, when the user of the TMC-compatible receiving device reads the TMC data stored and held in the memory 20, the system microcomputer 25 is operated in response to a predetermined operation from the operation unit 21. The TMC data is read from the memory 20 via the
The MC data is supplied to the TMC microcomputer 24.

The TMC microcomputer 24 generates display data and voice data from the supplied TMC data based on the language data from the TMC card 23, and outputs voice data related to the generated TMC data to the card interface. The data is supplied to the source switching unit 16 via 15 and the display data relating to the generated TMC data is displayed and output to the display unit 22 via the system microcomputer 25. The system microcomputer 25 is
When voice output related to the TMC data is requested in response to a predetermined operation from the operation unit 21, a source switching control signal for voice-outputting the voice data via the card interface 15 is supplied to the source switching unit 16. I shall.

Therefore, according to the TMC of the RDS broadcast, the TMC transmitted without the broadcast program for traffic information.
Since the data itself is traffic information and the TMC-compatible receiving apparatus receives the TMC data to be transmitted and sequentially stores the TMC data in the memory 20, the broadcast program being listened to may be interrupted during the program. It is possible to overcome the situation that causes interruption.

Further, according to the TMC, the number of groups transmitted per second is 11.5, and when TMC data of 8A group is transmitted, it often occurs during commuting or vacation. Since even 100 consecutive messages that require a large amount of traffic information related to traffic congestion are transmitted in about one and a half minutes, detailed traffic information can be provided to the user in real time.

Further, according to the TMC, since the traffic information of each region such as each state or each highway is subdivided, detailed information is obtained not only at each region but also at a point such as a branch point of the highway. Traffic information can be provided to the user.

Further, according to the TMC-compatible receiving apparatus for receiving the TMC, the transmitted TMC data is sequentially stored in the memory 20, so that the traffic information of each desired point is desired by the user. A user who can obtain the traffic information of the desired area while listening to the traffic information in the area other than the desired area by listening to the traffic information broadcast program as in the conventional case. The usability on the side can be greatly overcome.

Further, according to the TMC data, even if the driving driver moves across multiple countries of different languages, if the language data by the TMC card 23 is used, the TMC data is broadcast in his / her native language. Even in areas where there is no
It is possible to recognize TMC data such as traffic information in a desired area in a native language.

Further, the TMC which receives the TMC data concerned
According to the corresponding receiving device, the new TMC data received is related to the same area in which the memory 20 is stored and held in the memory 20.
If it is MC data, new TMC data is stored and updated in the memory 20.
Even if it is C data, it is always stored and updated with new TMC data, and the driving driver who is the user can always obtain new TMC data.

[0048]

However, the R
According to the TMC-compatible receiving apparatus that receives TMC data in DS broadcasting, the received new TMC data is sequentially stored and updated in the memory 20.
For example, when calling the TMC data of the desired area according to a predetermined operation from the operation unit 21, whether the called TMC data of the desired area is new TMC data stored and updated in the memory 20, or There is a problem that it is difficult for the user to determine whether or not it is the new TMC data stored in the memory for the first time.

The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to accurately and promptly notify the user of the determination as to whether or not the memory update of TMC data has been performed. It is to provide a receiving device for broadcasting.

[0050]

In order to achieve the above object, a multiplex broadcasting receiver of the present invention comprises a receiving means for receiving a broadcast wave in which multiplex data is multiplexed, and a storage update of the received multiplex data. Storage means for notifying the storage update, notification means for notifying the storage update, and control means for determining whether or not multiple data has been stored and updated in the storage means, and for driving the notification means when the storage update is made. It is characterized by having.

[0051]

With this configuration, according to the multiplex broadcasting receiver of the present invention, it is determined whether or not the multiplex data is stored and updated in the storage means, and the notification means is driven when the storage and update is performed. Therefore, the user can promptly and accurately recognize that the new multiplex data has been stored and updated in the storage means in response to the driving of the notification means.

[0052]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A TMC-compatible receiving apparatus to which the multiplex broadcasting receiving apparatus of the present invention is applied will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a main part of a TMC-compatible receiving apparatus to which the present invention is applied. Incidentally, FIG.
The same components as those of the general TMC-compatible receiving device shown in are given the same reference numerals, and the description of the configuration and operation thereof will be omitted.

The TMC-compatible receiver shown in FIG. 1 has the configuration of the general TMC-compatible receiver shown in FIG.
A TMC indicator 30 which is lit and displayed in response to a notification from the TMC microcomputer 24 in the main part 27 is provided.

The operation of the TMC-compatible receiver will be described below. FIG. 2 is a flowchart showing the processing operation of the system microcomputer 25 in the new data notification processing of the TMC-compatible receiving apparatus.

The new data notification processing is the T of the desired area when the TMC data of the desired area is called from the memory 20 in response to a predetermined operation from the operation unit 21.
When the MC data is new TMC data, the T
The MC indicator 30 is lit and displayed.

The new TMC data is the TMC data when it is stored and updated as new data of the same area in the TMC data stored and held in the memory 20, and is stored in the memory 20 for the first time. For example, it is TMC data stored as data of another area which is not stored in the memory 20.

In FIG. 2, the system microcomputer 25 is
It is determined whether or not the call setting for calling the TMC data in the desired area is input according to a predetermined operation from the operation unit 21 (step S11). If the call setting has been input, it is determined whether the TMC data in the desired area for which the call setting has been input is stored and held in the memory 20 (step S12).

If the TMC data of the desired area is stored in the memory 20, the T of the desired area is stored.
It is determined whether or not the MC data is the TMC data stored in the memory 20 for the first time, for example, in another area (step S13). In the determination process of whether or not the TMC data is first stored in the memory 20 in step S13, for example, an identification flag is set when the received TMC data is stored in the memory 20, and the setting is performed. The determination process may be performed based on the identified identification flag.

In step S13, TMC of the desired area
If the data is not the TMC data stored in the memory 20 for the first time, it is determined whether the TMC data of the desired area has the same data content as the TMC data immediately before being stored and updated (step S14). Incidentally, step S1
In the determination processing of the data content in 4, the identification flag is set when the TMC data related to the same area of the new data content is received and the received TMC data of the same area is stored and updated. The determination process may be performed based on the identified identification flag.

In step S14, T immediately before the TMC data in the desired area that has been set and input is stored and updated.
If it is not the same as the data content of the MC data, the TMC
The TMC indicator 30 is lit and displayed via the microcomputer 24 for display (step S15), and the T
The MC data is read from the memory 20, and the read TMC data is output, that is, the TMC data is read.
The data is displayed and output from the display unit 22, or the T
TM for outputting MC data as audio from the speaker 18
The C data output process is executed (step S16), and the T
It is determined whether or not the MC data output process is completed (step S17).

If the TMC data output process is completed, the TMC indicator 30 that is lit and displayed is turned off (step S18), and the new data notification process is completed.

In step S11, the TM of the desired area is
If there is no input for calling and setting the C data, or if there is no TMC data of the desired area in the memory 20 in step S12, the new data notification process ends.

In step S13, the TMC data of the desired area is stored in the memory 20 for the first time.
If it is C data, the process proceeds to step S15.

If the TMC data in the desired area that has been set and input in step S14 is the same as the data content of the TMC data immediately before being stored and updated, the process proceeds to step S16.

If the TMC data output process is not completed in step S17, the step S1 is executed again.
Move to 7.

Therefore, according to the above embodiment, when the TMC data in the desired area set by the operation unit 21 is called, if the called TMC data is new TMC data, new TMC data is used. Since the TMC indicator 30 is lit and displayed in order to notify the user of the existence, the user may recognize that the TMC data in the desired area selected by the operation unit 21 is new data. it can.

Further, in the above embodiment, when the TMC data in the desired area is called by the operating unit 21, the called TMC data is a new T
If it is MC data, the TMC indicator 30 is lit and displayed. However, the TMC-compatible receiver receives new TMC data, and the received TMC is received.
The TMC indicator 30 may be lit and displayed each time data is stored in the memory 20.

Further, in the above-mentioned embodiment, a new T is indicated by the lighting display of the TMC indicator 30 as the notification means.
Although the user is notified of the MC data, the display output from the display unit 22 and the speaker 19
It goes without saying that the user may be notified by a voice output from.

[0069]

According to the multiplex broadcast receiving apparatus of the present invention configured as described above, it is judged whether or not the multiplex data is stored and updated in the storage means, and when the storage and update is made, the notification means is provided. Since it is driven, the user can quickly and accurately recognize that new multiplex data has been stored and updated in the storage means in response to the driving of the notification means.

[Brief description of drawings]

FIG. 1 is a TMC to which a multiplex broadcasting receiver of the present invention is applied.
It is a block diagram which shows the schematic structure in the principal part of a compatible receiver.

FIG. 2 is a TMC to which the multiplex broadcasting receiver of the invention is applied.
It is a flowchart which shows the process operation of the system microcomputer in the new data alerting | reporting process of a corresponding | compatible type receiver.

FIG. 3 is an explanatory diagram showing a basic baseband coding structure of RDS data.

FIG. 4 is an explanatory diagram showing a baseband coding structure of an 8A group that transmits TMC.

FIG. 5 is a block diagram showing a schematic configuration of a general TMC-compatible receiver.

[Explanation of Codes] 12 FM Tuner (Reception Means) 20 Memory (Storage Means) 24 TMC Microcomputer (Control Means) 25 System Microcomputer (Control Means) 30 TMC Indicator (Notification Means)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuo Koyama 5-35-2 Shirayama, Bunkyo-ku, Tokyo Clarion Co., Ltd. (72) Masaki Sunaga 5-35-2, Shirayama, Bunkyo-ku, Tokyo Clarion Co., Ltd. (72) Inventor Tsutomu Yoshioka 5-35-2 Hakusan, Bunkyo-ku, Tokyo Clarion Co., Ltd. (72) Inventor Yuji Minegishi 5-35-2, Shirayama, Bunkyo-ku, Tokyo Clarion Co., Ltd.

Claims (5)

[Claims] 1. A receiving means for receiving a broadcast wave in which multiplexed data is multiplexed, a storage means for storing and updating the received multiplexed data, an informing means for informing of the storage update, and the multiplexed data in the storing means. And a control unit that drives the notification unit when the memory update is performed, and a receiver for multiplex broadcasting. 2. The multiplex broadcast receiving apparatus according to claim 1, wherein the notification unit is a sound output unit that outputs sound. 3. The control means, when the memory update is performed, generates an acoustic signal based on the multiplex data stored and updated in the storage means, and outputs the generated acoustic signal from the acoustic output means. The multi-broadcast receiving device according to claim 2, which outputs the signal. 4. The multiplex broadcast receiving apparatus according to claim 1, wherein the notification unit is a display output unit that outputs a display. 5. The control means generates a display signal based on the multiplexed data stored and updated in the storage means when the storage is updated, and displays the generated display signal from the display output means. 5. The multiplex broadcast receiving apparatus according to claim 4, wherein the receiving apparatus outputs the multiplexed broadcast.