JP2002300063A - Digital radio broadcast receiver and data transmission method in digital radio broadcast - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a digital radio broadcast receiver that can easily and surely download data desired by a listener and to provide a data transmission method in a digital radio broadcasting by which the listener can surely download the data. SOLUTION: The digital radio broadcast receiver is provided with a single or a plurality of tuners 51 to receive a digital radio broadcast program broadcasting audio and contents data. The receiver can set conditions including channel information at downloading of broadcast data, and when a user operates a quick download button, the receiver downloads data received by the tuner 51 under a preset condition. The downloading is carried out by using a decoder 52 to demodulate the data and storing the demodulated data into an image storage memory 37 without converting the digital information data. Furthermore, in the data transmission method, data distribution relating information (data distribution start timing and a channel to distribute data or the like) is superimposed on a digital radio broadcast program before transmission of the data and the resulting program is broadcast.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital radio broadcast receiving apparatus and a data transmitting method in digital radio broadcasting, and more particularly to a digital radio broadcasting receiving apparatus and data transmitting method for transmitting voice and content data on multiple channels.

[0002]

BACKGROUND OF THE INVENTION In recent years, teletext broadcasting has been put to practical use in television broadcasting, and in the field of radio broadcasting, digital radio broadcasting has been developed for full-scale realization.
Digital radio broadcasting is not yet in full operation, but it is possible to listen to radio programs (receive audio) and download content data (photos, illustrations, text, etc.). As a channel, a channel for transmitting voice and data superimposed and a channel for transmitting only data are prepared.

[0003] In this type of digital radio broadcasting, there is a demand for a receiving device having a function of reliably acquiring data desired by a listener. Also, on the broadcast provider side, it is necessary to establish a transmission method that enables the listener to download the data without fail in order to encourage the storage of the data.

An object of the present invention is to provide a digital radio broadcast receiving apparatus capable of easily and reliably obtaining data desired by a listener.

Another object of the present invention is to provide a data transmission method in digital radio broadcasting in which a listener can reliably download data.

[0006]

In order to achieve the above objects, a digital radio broadcast receiving apparatus according to the present invention comprises a tuner for receiving digital radio broadcasts and a channel information for downloading broadcast data. Setting means for setting conditions including, an operating member operated by a user, and a downloading means for downloading data received by the tuner under conditions preset by the setting means in accordance with the operation of the operating member. It has.

In the digital radio broadcast receiving apparatus according to the present invention, a user sets conditions including channel information at the time of downloading data to be broadcast. For example, setting it to a subchannel of the radio program you ’re listening to,
A setting is made so that a channel specified in a program is automatically selected, or a user sets an arbitrary channel. Then, when the user operates the operation member when the user wants the data, the data is downloaded according to the setting condition.

Therefore, according to the digital radio broadcast receiving apparatus of the present invention, the listener can easily and reliably acquire desired data by setting download conditions and operating the operation members.

[0009] The digital radio broadcast receiving apparatus according to the present invention may be provided with a notifying means for judging the data distribution timing from the additional information obtained from the receiving channel and notifying the data distribution. Further, a control unit may be provided which determines a data channel specified by a radio program being listened to from additional information obtained from a reception channel, and sets a channel for downloading data to the specified channel. Further, a designating means for always designating a predetermined data channel may be provided. Providing these notice means, control means or designation means makes it possible to download distributed data more reliably.

On the other hand, a data transmission method in digital radio broadcasting according to the present invention includes a step of superimposing data distribution-related information on a digital radio broadcast program before transmitting data, and a step of superimposing the data on which the data distribution-related information is superimposed. Transmitting. The data distribution-related information is, for example, information on data distribution start timing or information on a channel on which data is distributed.

[0011] According to the data transmission method of the present invention, since the data distribution-related information is superimposed on the digital radio broadcast program and transmitted prior to the data transmission, the listener can distribute the data prior to the data transmission. And that the data can be downloaded reliably.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a digital radio broadcast receiving apparatus according to the present invention will be described with reference to the accompanying drawings.

(Overall Configuration of Digital Radio Broadcasting System, See FIGS. 1 and 2) FIG. 1 shows a configuration example 1 of a digital radio broadcasting system. This configuration example 1 is a system mainly having a function of receiving a radio broadcast, and a receiving device 10 receives voice and data transmitted from a broadcasting station. The broadcast program will be provided by the content producing company.

FIG. 2 shows a configuration example 2 of the digital radio broadcasting system. This configuration example 2 is a system in which the receiving device has a mobile phone function. The user of the receiving device 10 ′ can receive voice and data from a broadcasting station, and based on the received data via a telephone line. You can access the content producing company. Further, the user can connect to the Internet by the receiving device 10 '.

In the configuration example 1, the data distribution is one-way, but there is an advantage that the data distribution is simultaneous to an unspecified number of recipients and the data distribution cost is low. In the configuration example 2, in addition to the advantages of the configuration example 1, an interactive network using a telephone line is constructed to compensate for a one-way defect.

The data distribution mechanism by digital radio broadcasting is such that content data composed of pictures, illustrations, texts, and the like is embedded in gaps between radio audio data from a broadcasting station and transmitted, and voice and content are separated. The received voice is reproduced through a speaker, and the content is downloaded to a memory and then displayed on a display means such as a liquid crystal display.

FIG. 3 shows an external configuration of the receiving apparatus 10 used in the configuration example 1, and includes a display unit 11 and a built-in radio antenna 15.
, A display image pointer 16, a tuning key 17, a quick download button 18, a speaker 19, and a radio listening start button 26 (which may also serve as a power switch). Furthermore, a built-in antenna 2 for Bluetooth
5 is provided. FIG. 4 shows the external configuration of the receiving apparatus 10 'used in the configuration example 2, and further, a telephone antenna 20 is added.

In each of the receivers 10 and 10 ', the display unit 11 is composed of a display panel including a liquid crystal and a drive circuit thereof, and a touch panel is provided on the surface of the display panel. When the content to be displayed has a hierarchical structure and the hierarchy is linked to a symbol or the like on the display screen, the touch panel is an effective input unit. A cursor may be displayed on the screen and operated with the pointer 16.

The tuning key 17 is for selecting a receiving channel, and is provided with a key for increasing the number of channels and a key for decreasing the number of channels. The quick download button 18 is operated by the user to start the download at an arbitrary timing.

The display panel constituting the display unit 11 is preferably a display panel having a memory function such as a cholesteric liquid crystal, a chiral nematic liquid crystal, or a ferroelectric liquid crystal. If the display element has a memory property, the display is maintained even if the supply of power is stopped, so that energization is performed only when the screen needs to be updated, and in other cases, energization may be turned off. Power saving can be achieved. In particular, when a cholesteric liquid crystal or a chiral nematic liquid crystal is used, a high-definition full-color display can be realized by stacking three liquid crystal layers that selectively reflect three colors of RGB. The display unit 11 can display not only a still image but also a moving image.

(Circuit Configuration of Receiver, see FIGS. 5 and 6) FIG. 5 shows a circuit configuration of the receiver 10 '. This circuit is composed mainly of a CPU 31 and has a ROM 32, an R
AM 33, screen buffer memory 34, image storage memory 37, mobile phone / PHS communication unit 38, Blue
tooth communication unit 39, digital radio receiving unit 40, image processing unit 41, clock / timer 42,
A power supply 43 is provided. Further, the display unit 11 (display panel 12 and its driving circuit 13), touch panel 14, display screen pointer 16, channel selection key 17, and quick download button 18 are connected.

FIG. 6 shows a detailed configuration of the receiving unit 40 configured as a multi-tuner system. Communication unit 4
0 comprises a plurality of tuners 51a, 51b, 51c,
Each has a decoder 52a, 52b, 52c. Each tuner is connected to the antenna 1 via the RF unit 53.
5 is connected. Since the received wave of the digital radio broadcast has been subjected to some digital modulation, the decoder 52
The signals are demodulated at a, 52b, and 52c. Also, these decoders have a function of separating audio and content data.

The tuner 51a is provided exclusively for receiving a radio program.
Speaker 19 via A converter 54 and amplifier 55
Will be played back. The content data is stored in each decoder 52a,
The digital information is stored in the image storage memory 37 as it is from 52b and 52c. The memory 37 is provided for each decoder 52.
Data transferred from a, 52b, and 52c can be stored in parallel.

The power switch group 44 is controlled by the CPU 31 so that each tuner 51a,
51b and 51c can be turned on and off independently,
Tuners not used for broadcast reception are turned off.

Although the receiving unit 40 shown in FIG. 6 is configured to reproduce sound only from one tuner 51a, the D / A is set so that all tuners can reproduce sound.
A changeover switch for the converter 54 may be provided.

(Example of Configuration of Broadcast Data, See FIGS. 7 and 8) Here, an example of the configuration of broadcast data transmitted by digital radio broadcasting will be described. FIG. 7 shows a first configuration example, in which channel Ch
In 1, the program band 31 and the data band 32 are superimposed. In the data band 32, a start signal is included as one of the data distribution related information prior to the transmission of the data 1. The data band 32 including the start signal is transmitted as the channel Ch1 together with the program band 31. The start signal is information on data distribution start timing, and indicates how many minutes or how many seconds later data is distributed in the data band 32 of the channel Ch1.

FIG. 8 shows a second configuration example, in which channel Ch is used.
1 is the same as the first configuration example in that the program band 31 and the data band 32 are superimposed. Channel C
h2 is composed of only the data band 32, and data A, B,.
It is included. In the channel Ch1, the data band 32 includes data for specifying the channel Ch2.
2 is received and data is downloaded from the channel Ch2.

(Setting of quick download, see FIG. 9) The quick download is a mode in which the listener downloads data at a required timing, and the download start timing is triggered by operating the quick download button 18. You.

When setting the quick download, the user inputs while the display panel 12 is switched to the screen shown in FIG. Mode 1 is a mode in which data is downloaded from a sub-channel of the radio program being listened to (data band 32 shown in FIG. 7). Mode 2 is a mode in which data is downloaded from a channel specified by the radio program being listened to (for example, channel Ch2 in FIG. 8). Mode 3 is a user-specified channel, in which a specific channel is specified to acquire data regardless of the program being listened to,
In this mode, desired data is downloaded by operating the quick download button 18 at an arbitrary timing. When this mode 3 is set and a channel is specified (a screen for specifying is not shown), the specified channel is displayed on the display panel 12 as shown in FIG.

Further, on the screen shown in FIG. 9, as the priority mode, either the regular download priority or the quick download priority can be selected. The regular download means a download other than the quick download, which is arbitrarily or reserved and executed by the user irrespective of the listening program. If quick download is prioritized, even if regular download is being executed, execution is switched to execution of quick download or download is executed in parallel.

(Other screens, see FIGS. 11 and 12) When data download is started, a screen shown in FIG. 11 is displayed. When the audio channel is switched at the start of the download, the screen shown in FIG. 12 is displayed. These displays may be performed by voice. Various display screens other than the screens shown in FIGS. 9 to 12, for example, a screen for inputting a data download reservation are also displayed.

(Control procedure by multi-tuner, FIG. 13)
Next, a control procedure of data download by the CPU 31 using the receiving unit 40 (with a built-in multi-tuner) will be described. Here, a plurality of tuners are efficiently operated to execute the download.

FIG. 13 shows a main sequence. In step S1, the quick download mode is set using the screen shown in FIG. Next, when the user inputs to change the reservation setting for download, step S
In step S3, the determination is YES, and the reservation setting is changed based on the user's input in step S3.

Next, in step S4, it is determined whether or not the start of regular download has been instructed. In step S5, it is determined whether or not the current time is the reserved time for download. In step S6, the quick download button 18 is operated. Then, it is determined whether or not the start of the quick download has been instructed. If YES in any of steps S4 and S5, a sub-sequence of tuner setting 1 (described below) is executed in step S7, and download is executed in step S9. If “YES” in the step S6, a quick download sub-sequence (described below) is executed in a step S8, and download is executed in a step SS9.

NO in steps S4, S5 and S6
If so, it is determined in step S10 whether or not the radio tuning key 17 has been operated. If not, the process returns to step S1, and
If operated, the tuner 51a is switched to the selected channel in step S11, and the process returns to step S1.

FIG. 14 shows a tuner setting sub-sequence executed in step S7. First, step S
At 21, an empty tuner is detected. Here, the empty tuner means a tuner that has not received any sound or downloaded any data at the present time. If the detection of an empty tuner is confirmed in step S22, the tuner is set for download in step S28, and the channel to be downloaded is set in step S30.

If no empty tuner is detected (NO in step S22), it is determined in step S23 whether or not radio sound is being received. If not, that is, if all tuners are executing download, , Step S3
1 to notify that download is impossible, and step S1 in FIG.
Return to 0. The notification that the download is not possible is made by voice from the speaker 19 or by displaying characters on the display panel 12.

If it is determined in step S23 that the voice is being received, it is determined in step S24 whether the channel receiving the voice is the same as the channel to be downloaded. Step S29
To set the tuner that is receiving audio to download and
In step S30, a channel to be downloaded is set. The channel set here is the same as the channel currently being received.

If the channel on which the voice is being received is not the same as the channel on which downloading is to be performed (NO in step S24), it is determined in step S25 whether or not download priority has been input. If not, as described above, a notification that download is impossible is given in step S31, and the process returns to step S10 in FIG.

If download priority has been input (YES in step S25), a warning is given in step S26 to switch the radio channel. This warning is given by voice from the speaker 19 or by displaying characters on the display panel 12 (see FIG. 11). Next, in step S27, the tuner during voice reception is set for downloading, and in step S30, the channel to be downloaded is set.

FIGS. 15 to 17 show a sub-sequence of the quick download process executed in step S8. First, in step S51, it is determined whether or not quick download priority is set. If YES, the channel mode (see FIG. 9) is confirmed in step S52,
The following sequence is executed based on the set modes 1, 2, and 3.

That is, in the case of mode 1 (sub-channel of a radio program), the download channel is set to the program channel in step S57. Thus, data is downloaded from the channel Ch1 of the configuration example 1 shown in FIG.

If the mode is mode 2 (the channel specified in the program), data is read from the data broadcast of the channel of the radio program in step S53, and the data is read in step S54.
Specifies the data channel specified by the program. Next, in step S55, it is determined whether or not the designated channel and the program channel currently being listened to are the same. If they are the same, the download channel is set as the program channel in step S57.

If the designated channel is not the same as the program channel currently being listened to, for example, as shown in the configuration example 2 of FIG. 8, when the data channel Ch2 is designated from the data broadcast of the radio channel Ch1, Then, the tuner setting 2 (described below) is executed in step S58. Thereafter, it is determined in step S59 whether or not the tuner setting is not possible. If the tuner setting is not possible (there is no empty tuner), it is notified in step S60 that the download being executed by the predetermined tuner is interrupted. This notification is made by voice from the speaker 19 or the display panel 12.
This is done by displaying characters on the top. Next, in step S61, the download of the predetermined tuner is interrupted, and in step S62
To set the suspended tuner for downloading, and in step S63, set the channel of the set tuner to the designated channel.

On the other hand, if the tuner cannot be set (NO in step S59), it is set (empty) in step S63.
Set the tuner channel to the specified channel.

If the mode is mode 3 (user-specified channel), it is determined in step S56 whether the user-specified channel and the program channel currently being listened to are the same. Set. If they are not the same, steps S58 to S63 are executed.

On the other hand, if quick download is not prioritized (NO in step S51), the channel mode is checked in step S64, and the set mode 1,
The following sequence is executed based on 2 and 3.

That is, if the mode is mode 1 (sub-channel of a radio program), the download channel is set to the program channel in step S69. Thus, data is downloaded from the channel Ch1 of the configuration example 1 shown in FIG.

If the mode is mode 2 (the channel specified in the program), data is read from the data broadcast of the channel of the radio program in step S65, and the data is read in step S66.
Specifies the data channel specified by the program. Next, in step S67, it is determined whether or not the designated channel and the program channel currently being listened to are the same. If they are the same, the download channel is set as the program channel in step S69.

If the designated channel is not the same as the program channel currently being listened to, for example, as shown in the configuration example 2 of FIG. 8, when the data channel Ch2 is designated from the data broadcast of the radio channel Ch1, , The tuner setting 2 (described below) is executed in step S70. Thereafter, it is determined in step S71 whether or not the tuner setting is not possible. If the tuner setting is not possible (there is no empty tuner), a notification is made in step S72 that quick download is impossible. This notification is made by voice from the speaker 19 or by displaying characters on the display panel 12.

On the other hand, if the tuner cannot be set (NO in step S71), it is set (empty) in step S73.
Set the tuner channel to the specified channel.

If the mode is 3 (user-specified channel), it is determined in step S68 whether the user-specified channel and the program channel currently being listened to are the same, and if so, the download channel is set to the program channel in step S69. Set. If they are not the same, steps S70 to S73 are executed.

FIG. 18 shows a sub-sequence of the tuner setting 2 executed in steps S58 and S70. First, an empty tuner is detected in step S81. When the detection of an empty tuner is confirmed in step S82, the presence or absence of a reservation in the empty tuner is detected in step S83.

Next, at step S84, it is determined whether or not all the tuners have reservations. If there are tuners without reservations, tuners without reservations are set for download at step S88 and downloaded at step S90. Set to the desired channel.

On the other hand, if all the vacant tuners have reservations (YES in step S84), the reservation conditions are confirmed in step S85, and candidate tuners to be downloaded are extracted in step S86. In the candidate extraction, for example, the reservation of the tuner 51b is set to 12:00 to 13:00, and the reservation of the tuner 51c is set to 22:00 to 12:00.
If it is set to 23:00 and the download instruction time is 11:00, the tuner 51c that is the latest in the reservation time and is not used even when the download is started, is extracted as the first candidate. . Then, in step S87, the first tuner is set for downloading, and in step S90, the channel to be downloaded is set.

If no empty tuner is detected (NO in step S82), that is, if all the tuners are executing the download, it is set in step S89 that the tuner cannot be set. This disabling setting is a target of determination in steps S59 and S71.

(Another Configuration Example of the Receiving Unit, See FIG. 19) FIG. 19 shows a detailed configuration of the receiving unit 40 'configured as a single tuner system. Receiving unit 4
0 ′ includes one tuner 51 and a decoder 52, and the tuner 51 is connected to the antenna 15 via the RF unit 53. The functions of the decoder 52 and other components are as described for the receiving unit 40 (see FIG. 6).

In this receiving unit 40 ', the decoder 5
A switch 56 is provided between the converter 2 and the converter 54. The switch 56 turns off the audio when the audio is switched with the change of the channel when downloading the data as described below. Used when the user desires.

(Control procedure by single tuner, FIG. 2
Here, a control procedure of data download by the CPU 31 using the receiving device 40 (with a built-in single tuner) will be described. Here, one tuner is efficiently operated to execute the download.

FIG. 20 shows a main sequence. In step S101, the quick download mode is set using the screen shown in FIG. Next, when the user inputs to change the reservation setting for download, YES is determined in step S102, and the reservation setting is changed based on the user's input in step S103.

Next, in step S104, it is determined whether or not a steady download operation has been performed.
In step S106, it is determined whether or not the current time is the reservation time for downloading.
8 is operated to determine whether or not the start of quick download has been instructed. If “YES” in the step S104, a sub sequence (described below) of the download operation check is executed in a step S107, and the step S107 is performed.
At 110, download is executed. If “YES” in the step S105, a sub sequence of download reservation check (described below) is executed in a step S108, and download is executed in a step S110. If “YES” in the step S106, a quick download subsequence (described below) is executed in a step S109, and the download is executed in a step S110.

If NO in steps S104, S105 and S106, it is determined in step S111 whether or not the radio tuning key 17 has been operated. If no operation has been performed, the process returns to step S101. After switching the channel to the selected channel, the process returns to step S101.

FIG. 21 shows a sub-sequence of the download operation check executed in step S107.
Here, first, it is determined in step S121 whether or not the radio sound is being received.
Then, it is determined whether or not the channel for receiving the audio is the same as the channel to be downloaded. If the channels are different, a warning to switch the radio channel is displayed in step S123 (see FIG. 12).

Next, after confirming that the download is not stopped in step S124, an operation of setting a data channel to be received is performed in step S125. further,
In step S126, it is determined whether or not a download start operation has been performed, and if the operation has been performed, the tuner is set as a download target channel in step S127.

In addition, if a stop of the download is input (YES in step S124) or the download start operation is not performed within a predetermined time (N in step S126)
O), and return to step S111 shown in FIG.

On the other hand, if the radio sound is not being received (NO in step S121), the tuner 51 is not operating, and the radio channel and the channel to be downloaded are the same even during the reception. If (YES in step S122), step S125
Then, the data channel to be received is set, and steps S126 and S127 are executed.

FIG. 22 shows a subsequence of the download reservation check executed in step S108.
Here, it is first determined in step S131 whether or not the radio sound is being received.
Then, it is determined whether or not the channel for receiving the audio is the same as the channel to be downloaded. If the channels are the same, after confirming that the download priority is set in step S133, a warning to switch the radio channel is displayed in step S136 (see FIG. 12). Thereafter, in step S137, the tuner 51 is set as a download target channel.

If download priority is not given (step S
133 is NO), the start of download is notified in step S134 (see FIG. 11), and after confirming that download execution has been instructed in step S135, the tuner 51 is set as a download target channel in step S137. If the execution of the download is not instructed within the predetermined time (NO in step S135), FIG.
The process returns to step S111 shown in FIG.

On the other hand, if the radio sound is not being received (NO in step S131), the tuner 51 is not operating, and the radio channel and the channel to be downloaded are the same even during the reception. If (YES in step S132), step S137
To set the tuner 51 as a download target channel.

FIGS. 23 and 24 show a sub-sequence of the quick download process executed in step S109. First, it is determined in step S141 whether quick download priority is set. If YES, the channel mode (see FIG. 9) is checked in step S142, and based on the set modes 1, 2, and 3. Execute the following sequence.

That is, if the mode is mode 1 (sub-channel of a radio program), the download channel is set to the program channel in step S147. Thus, data is downloaded from the channel Ch1 of the configuration example 1 shown in FIG.

If the mode is mode 2 (the channel specified in the program), data is read from the data broadcast of the channel of the radio program in step S143, and
At 44, the data channel specified by the program is specified.
Next, in step S145, it is determined whether or not the designated channel and the program channel currently being listened to are the same. If they are the same, the download channel is set as the program channel in step S147.

If the designated channel is not the same as the program channel currently being listened to, for example, as shown in the configuration example 2 of FIG. 8, when the data channel Ch2 is designated from the data broadcast of the radio channel Ch1, In step S148, it is notified that the radio program currently being listened to is interrupted. This notification is a sound from the speaker 19,
Alternatively, it is performed by displaying characters on the display panel 12.
Next, the radio sound is turned off in step S149, and the channel of the tuner 51 is set to the designated channel in step S150.

If mode 3 (user-specified channel), it is determined in step S146 whether the user-specified channel and the program channel currently being listened to are the same, and if so, the download channel is set to the program channel in step S147. Set. If they are not the same, steps S148 to S150 are executed.

On the other hand, if the priority is not quick download (NO in step S141), the channel mode is confirmed in step S151, and the following sequence is executed based on the set modes 1, 2, and 3.

That is, if the mode is mode 1 (sub-channel of a radio program), the download channel is set to the program channel in step S156. Thus, data is downloaded from the channel Ch1 of the configuration example 1 shown in FIG.

If the mode is mode 2 (the channel specified in the program), data is read from the data broadcast of the channel of the radio program in step S152, and
At 53, the data channel specified by the program is specified.
Next, in step S154, it is determined whether or not the designated channel and the program channel currently being listened to are the same. If they are the same, the download channel is set as the program channel in step S156.

If the designated channel is not the same as the program channel currently being listened to, for example, as shown in the configuration example 2 of FIG. 8, when the data channel Ch2 is designated from the data broadcast of the radio channel Ch1, Then, in step S157, it is notified that quick download is impossible. This notification is made by voice from the speaker 19 or by displaying characters on the display panel 12.

If the mode is mode 3 (user-specified channel), it is determined in step S155 whether the user-specified channel and the program channel currently being listened to are the same, and if so, the download channel is set to the program channel in step S156. Set. If not the same, the step S157 is executed.

(Other Embodiments) The digital radio broadcast receiving apparatus and the data transmission method according to the present invention are not limited to the above embodiments, but can be variously modified within the scope of the invention.

In particular, the external configuration of the receiving device, the configuration of the display unit, and the circuit configuration are arbitrary.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration example 1 of a digital radio broadcasting system.

FIG. 2 is an explanatory diagram showing a configuration example 2 of the digital radio broadcasting system.

FIG. 3 is a perspective view showing a receiving device used in the configuration example 1;

FIG. 4 is a perspective view showing a receiving device used in the configuration example 2;

FIG. 5 is a block diagram showing a control circuit of the receiving apparatus shown in FIG. 4;

FIG. 6 is a block diagram showing a receiving unit (multi-tuner system) constituting the control circuit.

FIG. 7 is an explanatory diagram showing a configuration example 1 of broadcast data transmitted by the data transmission method according to the present invention.

FIG. 8 is an explanatory diagram showing a configuration example 2 of broadcast data transmitted by the data broadcasting method according to the present invention.

FIG. 9 is an explanatory diagram showing an example of a display screen of the receiving device.

FIG. 10 is an explanatory diagram showing another example of the display screen of the receiving device.

FIG. 11 is an explanatory view showing still another example of the display screen of the receiving device.

FIG. 12 is an explanatory view showing still another example of the display screen of the receiving device.

FIG. 13 is a flowchart showing a main sequence of a control procedure according to the multi-tuner method.

FIG. 14 is a flowchart showing a sub-sequence for executing tuner setting 1;

FIG. 15 is a flowchart showing a sub-sequence of a quick download process.

FIG. 16 is a flowchart showing a sub-sequence of quick download processing, and is a continuation of FIG. 15;

FIG. 17 is a flowchart showing the sub-sequence of the quick download process, and is a continuation of FIG. 16;

FIG. 18 is a flowchart showing a sub-sequence for executing tuner setting 2;

FIG. 19 is a block diagram showing another example (single tuner system) of the receiving unit.

FIG. 20 is a flowchart showing a main sequence of a control procedure using a single tuner method.

FIG. 21 is a flowchart showing a sub-sequence of a download operation check.

FIG. 22 is a flowchart showing a sub-sequence of download reservation check.

FIG. 23 is a flowchart showing a sub-sequence of a quick download process.

24 is a flowchart showing a sub-sequence of the quick download process, and is a continuation of FIG. 23.

[Explanation of symbols]

 10, 10 '... Digital radio broadcast receiving device 11 ... Display unit 18 ... Quick download button 31 ... CPU 37 ... Image storing memory 40, 40' ... Receiving unit 51, 51a, 51b, 51c ... Tuner 52, 52a, 52b, 52c ... decoder

 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Katsuhiko Asai 2-3-1, Azuchi-cho, Chuo-ku, Osaka-shi, Osaka F-term in Osaka International Building Minolta Co., Ltd. 5K061 AA09 BB01 BB06 DD12 DD14 EF06 FF01 GG10 JJ06 JJ07 JJ18

Claims (7)

[Claims] A tuner for receiving a digital radio broadcast; setting means for setting conditions including channel information at the time of downloading of broadcast data; an operation member operated by a user; A digital radio broadcast receiving apparatus, comprising: download means for downloading data received by the tuner under conditions preset by the setting means in response to an operation. 2. The digital radio broadcast receiving apparatus according to claim 1, further comprising a notice unit for judging a data distribution timing from the additional information obtained from the receiving channel and for giving a notice of the data distribution. 3. A control means for judging a data channel designated by a radio program being listened to from additional information obtained from a reception channel and setting a channel for downloading data to the designated channel. Item 2. The digital radio broadcast receiving device according to item 1. 4. The apparatus according to claim 1, further comprising a designating means for always designating a predetermined data channel.
Or the digital radio broadcast receiving apparatus according to claim 3. 5. A method comprising: superimposing data distribution-related information on a digital radio broadcast program before transmitting data; and transmitting data on which the data distribution-related information is superimposed. Data transmission method in digital radio broadcasting. 6. The data transmission method according to claim 5, wherein the data distribution related information is information on data distribution start timing. 7. The data transmission method according to claim 5, wherein the data distribution-related information is information on a channel on which data is distributed.