JP2001251168A - Multiple broadcat receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that the operation load of update confirmation and storage update is large. SOLUTION: A DAB receiver 1 receives DAB broadcast obtained by multiplexing data service broadcast and has a preset memory 28 for storing the data service broadcast and a CPU 27 displaying the data service broadcast on a display 22 in accordance with the operation of a preset key 26 corresponding to the memory 28. When the CPU 27 detects the operation of the preset key 24, the CPU 27 starts receiving operation of the data service broadcast stored in the memory 28 corresponding to the key 24, decides the existence/ absence of update of the data service broadcast when the CPU 27 decides that the data service broadcast has been received, and stores and updates the data service broadcast that is currently received into the memory 28 when the CPU 27 decides that the data service broadcast is updated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data service broadcast multiplexed in a digital audio broadcasting (hereinafter, simply referred to as DAB) broadcast, stored in a preset memory, and the broadcast stored in the preset memory. The present invention relates to a multiplex broadcast receiving apparatus such as a DAB receiver that displays contents by a one-touch operation on a display.

[0002]

2. Description of the Related Art Conventionally, as a service broadcast multiplexed with such a DAB broadcast, there are an audio service broadcast and a data service broadcast including characters and images.

[0003] A conventional DAB receiver for receiving such a DAB broadcast will be described. FIG. 4 shows a conventional DA
It is a block diagram which shows schematic structure inside a B receiver.

[0004] A DAB receiver 50 shown in FIG. 4 includes a receiving antenna 51 for receiving an incoming DAB signal, a high-frequency amplifier 52 for amplifying the DAB signal received by the receiving antenna 51 to a predetermined level, and a high-frequency amplifier 52. A mixing circuit 54 that generates a desired DAB intermediate frequency signal by mixing the local oscillation frequency from the local oscillator 53 with the DAB signal amplified by the above, and removes unnecessary signal components of the DAB intermediate frequency signal. An intermediate frequency amplifier 55 for amplifying the DAB intermediate frequency signal from which the unnecessary signal component has been removed to a predetermined level, and a DAB decoder unit for extracting the audio service broadcast and the data service broadcast by decoding the DAB intermediate frequency signal 56
And an MPEG audio decoder unit 57 for converting a desired audio service broadcast from the plurality of audio service broadcasts extracted by the DAB decoder unit 56 into an audio signal, and an MPEG audio decoder unit 5
An amplifier section 5 for amplifying the audio signal converted in 7
8 and a speaker 59 for outputting the audio signal amplified by the amplifier section 58 as sound.

[0005] Further, the DAB receiver 50 includes a PLL circuit 60 for causing the local oscillator 53 to generate a desired local oscillation frequency by setting a frequency division ratio, and a plurality of data service broadcasts extracted by the DAB decoder unit 56. Among them, a data decoder unit 61 that decodes a desired data service broadcast and temporarily stores all received data as broadcast contents of the data service broadcast, and displays all received data temporarily stored in the data decoder unit 61 A display unit 62,
An operation unit 65 including a preset key 64 for storing all received data by one-touch operation and displaying all received data stored by one-touch operation on the display unit 62
And a memory 66 for storing various data,
And a CPU 67 for controlling the entire receiver 50.

The CPU 67 can receive a desired DAB broadcast by setting the frequency division ratio of the PLL circuit 60 and causing the local oscillator 53 to generate a desired local oscillation frequency.

The CPU 67 selects a desired audio service broadcast from a plurality of audio service broadcasts in the DAB decoder unit 56 in response to an audio selection command from the operation unit 65, and converts the selected audio service broadcast to MPEG. This is supplied to the decoder unit 57.

The CPU 67 selects a desired data service broadcast from a plurality of data service broadcasts in the DAB decoder unit 56 in response to a data selection command from the operation unit 65, and selects the selected data service broadcast. Is temporarily stored in the data decoding unit 61.

The CPU 67 is provided with a DAB decoder 5
6 to obtain program control information necessary for selecting a data service broadcast, and stores the program control information in a memory 66.
Is to be stored.

[0010] The memory 66 is provided with a preset memory 68 which is assigned to each preset key 64 and stores all received data which is the broadcast contents of the data service broadcast.

Next, the operation of the DAB receiver 50 will be described. FIG. 5 is a flowchart showing the processing operation of the CPU 67 related to the preset storage / display processing of the conventional DAB receiver 50.

In FIG. 5, the CPU 67 determines whether or not the data service broadcast has been selected (step S4).
1). If the data service broadcast is selected, a desired data service broadcast is selected from a plurality of data service broadcasts based on the program control information stored in the memory 66, and the desired data service broadcast is transmitted through the data decoding unit 61. By decoding the service broadcast, received data as broadcast contents is obtained (step S42). It is determined whether all the received data related to the desired data service broadcast has been acquired (step S43).

If all the received data related to the desired data service broadcast can be obtained, the received data is temporarily stored in the data decoding unit 61 (step S44), and the temporarily stored all data is stored. The received data is displayed on the display unit 62 (step S45), and it is determined whether the preset key 64 has been pressed (step S46).

If the preset key 64 has been pressed, it is determined whether or not the pressing time of the preset key 64 has elapsed for t seconds or more (step S47). If the pressing time of the preset key 64 has elapsed for t seconds or more, all the received data currently being displayed are stored in the preset memory 68 corresponding to the pressed preset key 64 (step S48), and this processing operation is performed. finish.

In step S47, if the pressing time of the preset key 64 has not elapsed for t seconds or more, but is shorter than t seconds, all the received data stored in the preset memory 68 corresponding to the preset key 64 is read out. All the received data is displayed on the display unit 62 (step S49), and the processing operation is terminated.

As described above, according to the conventional DAB receiver,
All received data of the desired data service broadcast is stored in the preset memory 68 by one touch operation of the preset key 64, and all received data stored in the preset memory 68 by one touch operation of the preset key 64 corresponding to the preset memory 68, that is, Since the broadcast content is displayed on the display unit 62, the user can store and display a desired data service broadcast with a simple operation.

[0017]

Generally, DAB broadcast data service broadcasts often have their broadcast contents updated (updated).

However, the conventional DAB receiver 5
According to 0, the broadcast content of the data service broadcast currently stored in the preset memory 68 is compared with the broadcast content of the currently broadcast data service broadcast by the user himself. It is necessary to check whether or not the update has been performed, and there has been a first problem in that the check operation imposes a heavy burden on the user.

Further, according to the conventional DAB receiver 50, if the broadcast content of the data service broadcast has been updated, it is necessary to perform a new reception operation of all the received data which is the broadcast content of the data service broadcast. Therefore, the second problem that all the received data, which is the broadcast content of the updated data service broadcast, must be stored and updated in the stored preset memory 68, and the storage update operation imposes a heavy burden on the user. There was a point.

The present invention has been made in view of the above-mentioned first problem, and a first object of the present invention is to update the broadcast contents of a data service broadcast without requiring a user to perform a confirmation operation. It is an object of the present invention to provide a multiplex broadcast receiving apparatus capable of confirming that the operation has been performed.

The present invention has been made in view of the second problem, and a second object of the present invention is to provide a method for updating an updated data service broadcast without performing a storage update operation by the user himself. It is an object of the present invention to provide a multiplex broadcast receiving apparatus capable of storing and updating broadcast contents in a preset memory.

[0022]

In order to achieve the above object, a multiplex broadcast receiving apparatus according to the present invention comprises: a receiving means for receiving a multiplex broadcast obtained by multiplexing a data service broadcast; and a data receiving means for receiving the multiplex broadcast. A multiplex broadcast receiving device comprising: a preset memory for storing a service broadcast; and control means for outputting a data service broadcast stored in the preset memory in accordance with a key operation of a preset key corresponding to the preset memory, When the key operation of the preset key is detected, the data service broadcast stored in the preset memory corresponding to the preset key is received by the receiving means, and whether or not the data service broadcast could be received by the receiving means is determined. Receiving determination means for determining whether a data service broadcast can be received by the reception determining means. If it has been determined that was to have an update detecting means for detecting the update indicator of the data service broadcasting.

Therefore, according to the multiplex broadcast receiving apparatus of the present invention, when the key operation of the preset key is detected, the data service broadcast stored in the preset memory corresponding to the preset key is received, and the data service broadcast is received. If it is determined that the content of the data service broadcast has been updated, it is possible to detect whether or not the content of the data service broadcast has been updated without detecting the update by detecting whether or not the data service broadcast has been updated. Can be.

The multiplex broadcast receiving apparatus according to the present invention has a notifying means for notifying that the data service broadcast has been updated when the update detecting means detects the update of the data service broadcast.

Therefore, according to the multiplex broadcast receiving apparatus of the present invention, the user can recognize that the data service broadcast has been updated in accordance with the notification content of the notification means.

In order to achieve the second object,
The multiplex broadcast receiving apparatus according to the present invention has a storage update unit for storing and updating the currently received data service broadcast in the preset memory when the update detection unit detects the update of the data service broadcast.

Therefore, according to the multiplex broadcast receiving apparatus of the present invention, when the data service broadcast is detected to be updated, the currently received data service broadcast is stored and updated in the preset memory. The broadcast contents of the updated data service broadcast can be stored and updated in the preset memory without performing any operation.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A DAB receiver showing an embodiment in a multiplex broadcast receiving apparatus of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration inside the DAB receiver shown in the present embodiment.

A DAB receiver 1 shown in FIG. 1 is a receiving antenna 1 for receiving a DAB signal which is an incoming multiplex broadcast signal.
1, a high-frequency amplifier 12 for amplifying the DAB signal received by the receiving antenna 11 to a predetermined level, and a local oscillator 1 for the DAB signal amplified by the high-frequency amplifier 12.
3 by mixing the local oscillation frequency from
A mixing circuit 14 for generating an intermediate frequency signal;
An intermediate frequency amplifier 15 that removes unnecessary signal components of the intermediate frequency signal and amplifies the DAB intermediate frequency signal from which the unnecessary signal components have been removed to a predetermined level, and decodes the DAB intermediate frequency signal to obtain an audio signal. DAB for extracting service broadcast and data service broadcast
A decoder section 16 and an MPE for converting a desired audio service broadcast among a plurality of audio service broadcasts extracted by the DAB decoder section 16 into an audio signal.
It has a G audio decoder section 17, an amplifier section 18 for amplifying the audio signal converted by the MPEG audio decoder section 17, and a speaker 19 for outputting the audio signal amplified by the amplifier section 18 as audio. I have.

The DAB receiver 1 further includes a PLL circuit 20 for setting the frequency division ratio to generate a desired local oscillation frequency in the local oscillator 13 and a plurality of data service broadcasts extracted by the DAB decoder 16. Among them, a data decoder unit 21 that decodes a desired data service broadcast and temporarily stores all received data and reception control information as broadcast contents of the data service broadcast, and all data temporarily stored in the data decoder unit 21 A display unit 22 for displaying received data, and a preset key for storing all received data of a desired data service broadcast by one-touch operation and displaying all received data of the desired data service broadcast on the display unit 22 by one-touch operation An operation unit 25 having a memory 24 and a memory 26 for storing various data
And a CPU 27 that controls the DAB receiver 1 as a whole.

The reception control information is information obtained from a DAB broadcast, including a reception frequency and a program genre of the data service broadcast, update information indicating whether or not the data service broadcast has been updated, and the like.

The CPU 27 can receive a desired DAB broadcast by causing the local oscillator 13 to generate a desired local oscillation frequency by setting the frequency division ratio of the PLL circuit 20.

The CPU 27 selects a desired audio service broadcast from a plurality of audio service broadcasts in the DAB decoder section 16 in response to an audio selection command from the operation section 25, and converts the selected audio service broadcast to an MPEG. This is supplied to the decoder unit 17.

The CPU 27 selects a desired data service broadcast from a plurality of data service broadcasts in the DAB decoder section 16 in response to a data selection command from the operation section 25, and selects the selected data service broadcast. Is temporarily stored in the data decoding unit 21.

The CPU 27 also includes a DAB decoder 1
6 to obtain program control information necessary for selecting a data service broadcast, and stores the program control information in the memory 26.
Is to be stored.

The memory 26 is provided with a preset memory 28 which is assigned to each of the preset keys 24 and stores all received data and reception control information which are broadcast contents of the data service broadcast.

In the DAB receiver 1, a data service broadcast can be viewed while listening to an audio service broadcast.

Next, the operation of the DAB receiver 1 according to the present embodiment will be described. FIG.
4 is a flowchart illustrating a processing operation of a CPU 27 related to a preset storage process of the B receiver 1.

In FIG. 2, CPU 27 determines whether or not a data service broadcast is selected (step S1).
1). If the data service broadcast is selected, a desired data service broadcast is selected from a plurality of data service broadcasts based on the program control information stored in the memory 26, and the desired data service broadcast is selected through the data decoding unit 21. By decoding the service broadcast, reception data and reception control information as broadcast contents are obtained (step S12).

It is determined whether all the received data related to the desired data service broadcast has been obtained (step S13).

If all the received data relating to the desired data service broadcast can be obtained, the received data and the reception control information are temporarily stored in the data decoding unit 21 (step S14). All the stored received data are displayed on the display unit 22 (step S15), and it is determined whether or not the preset key 24 has been pressed (step S16).

If the preset key 24 has been pressed, it is determined whether or not the pressing time of the preset key 24 has elapsed for t seconds or more (step S17). If the pressing time of the preset key 24 has elapsed for t seconds or more, all the reception data and the reception control information temporarily stored in the data decoder unit 21 corresponding to all the reception data currently displayed are pressed. The data is stored in the preset memory 28 corresponding to the preset key 24 (step S18), and this processing operation ends.

That is, a desired data service broadcast can be stored in the preset memory 28 by pressing the preset key 24 for t seconds or longer.

In step S17, if the pressing time of the preset key 24 has not elapsed for t seconds or more, that is, t
If the time is less than seconds, the process proceeds to the preset display process shown in FIG.

FIG. 3 is a flowchart showing the processing operation of the CPU 27 relating to the preset display processing shown in this embodiment.

In FIG. 3, the CPU 27 reads out all the received data relating to the data service broadcast stored in the preset memory 28 corresponding to the preset key 24 depressed in step S16 shown in FIG. Is displayed on the section 22 (step S2
1).

Further, based on the reception control information stored together with all the currently displayed reception data, a reception operation for the currently displayed data service broadcast is executed (step S22), and the data service broadcast is received. It is determined whether or not the operation has been successfully performed (step S23).

If the data service broadcast can be received, all the received data and the reception control information related to the data service broadcast are obtained, and the received data and the reception control information are stored in the data decoding unit 21. It is temporarily stored (step S24).

Based on the update information included in the temporarily stored reception control information, it is determined whether or not the broadcast content of the currently received data service broadcast has been updated (step S25).

If the broadcast content of the currently received data service broadcast has been updated, the update is displayed on the display unit 22 (step S26), and the update temporarily stored in the data decode unit 21 is performed. While displaying all the relevant received data on the display unit 22 (step S27), all the received data and reception control information temporarily stored in the data decoding unit 21 are updated and stored in the corresponding preset memory 28 (step S28). , This processing operation ends.

If the data service broadcast cannot be received in step S23, or if the data service broadcast has not been updated in step S25, the processing operation ends without performing update storage.

The receiving means described in the claims corresponds to step S2.
2. The reception determining means corresponds to step S23, the update detecting means corresponds to step S25, and the storage updating means corresponds to step S28.

According to the present embodiment, the preset key 2
In response to the display operation of No. 4 (press operation for less than t seconds), reception of the data service broadcast is started while displaying the data service broadcast corresponding to the preset memory 28,
It is determined whether or not the broadcast content of the currently received data service broadcast has been updated. If the broadcast content has been updated, the memory content of the preset memory 28 corresponding to the preset key 24 is updated. Even without performing the confirmation operation and the update storage operation,
All the received data contents of the data service broadcast stored in the preset memory 28 can be updated and stored, so that the user can view the latest data service broadcast.

Moreover, when such a DAB receiver 1 is used in a vehicle-mounted device, it is possible to engage in safe driving by eliminating the burden on the driver due to the confirmation operation and the memory update operation.

In the above embodiment, as shown in step S26 in FIG. 4, the fact that the broadcast contents of the data service broadcast have been updated is notified on the display output of the display unit 22. Speaker 1
9 may be notified.

[0056]

According to the multiplex broadcast receiving apparatus of the present invention configured as described above, when a key operation of the preset key is detected, the data service broadcast stored in the preset memory corresponding to the preset key is received. If it is determined that the data service broadcast has been successfully received, the broadcast content of the data service broadcast is updated without detecting the update operation of the data service broadcast by the user himself / herself. Can be confirmed.

According to the multiplex broadcast receiving apparatus of the present invention, when it is detected that the data service broadcast has been updated, the currently received data service broadcast is stored and updated in the preset memory. Even without performing, the broadcast contents of the updated data service broadcast can be stored and updated in the preset memory.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration inside a DAB receiver showing an embodiment in a multiplex broadcast receiving apparatus of the present invention.

FIG. 2 is a flowchart showing a processing operation relating to preset storage / display processing in a DAB receiver shown in the present embodiment, which is performed by a CPU.

FIG. 3 is a flowchart showing a processing operation of a CPU relating to preset display processing in the DAB receiver shown in the present embodiment.

FIG. 4 is a block diagram showing a schematic configuration inside a conventional DAB receiver.

FIG. 5 is a diagram illustrating preset storage and storage in a conventional DAB receiver.
5 is a flowchart illustrating a processing operation of a CPU related to a display process.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 DAB receiver (multiplex broadcast receiver) 24 preset key 22 display part (notification means) 27 CPU (control means, reception determination means, update detection means, storage update means) 28 preset memory

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5J103 AA13 BA04 CB00 CB04 DA01 DA03 DA05 DA06 DA07 DA38 DA44 FA03 JA04 JA11 JA19 LA01 LA26 MA01 MA09 5K061 AA03 AA09 BB00 BB01 CC08 CC11 CC16 CC23 CC31 DD00 DD12 DD14 FF00 FF07

Claims (3)

[Claims] 1. A receiving means for receiving a multiplex broadcast obtained by multiplexing a data service broadcast, a preset memory for storing the data service broadcast received by the receiving means, and a key operation of a preset key corresponding to the preset memory And a control means for outputting a data service broadcast stored in the preset memory in accordance with the following. When a key operation of the preset key is detected, the multiplex broadcast receiving apparatus stores the data service broadcast in the preset memory corresponding to the preset key. Receiving means for receiving the data service broadcast being received by the receiving means, and determining whether or not the data service broadcast could be received by the receiving means; and receiving the data service broadcast by the reception determining means If it is determined that the data service broadcast has been updated, it is detected whether or not the data service broadcast has been updated. Multiplex broadcast receiving apparatus characterized by having an update detecting unit. 2. The multiplex broadcast receiving apparatus according to claim 1, further comprising a notifying means for notifying the presence of the update of the data service broadcast when the update detection means detects the update of the data service broadcast. 3. A storage updating means for storing and updating a currently received data service broadcast in a preset memory when said update detecting means detects that a data service broadcast has been updated. 3. The multiplex broadcast receiving apparatus according to 2.