JP2001339679A - Digital audio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a digital audio equipment to display an image in synchronism with an audio output even if image data do not exist in input audio data and then to enable the digital audio equipment to display the image in synchronism with the audio signal outputted without decreasing the amount of the audio data recorded in a recording medium. SOLUTION: For example in a digital audio broadcasting, an address and an image file name of the record place of the image data displayed in synchronism with the audio data are recorded in the transmit data. In a receiving section 10, the audio data 15 and the information channel data 17, etc., that the address is recorded, are separated from the receive data. A home page 28 which offers the image is accessed when the address recorded in information channel data 17 is an address of a home page of internet, etc. The CD-ROM, etc., then are accessed and the fixed image data are taken in and displayed on an image display section 23 in synchronism with the audio data when the address is an address of the image data recording equipment such as CD-ROM.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital audio broadcast receiver for receiving digital audio broadcasts and a digital audio device such as a device for reproducing a recording medium such as a disk on which digital audio is recorded. By capturing and displaying image data from the Internet or other files in synchronization with data or audio data reproduced from a disc, etc., there is no need to transmit image data during audio broadcast data, and it is also possible to store audio data on an audio recording medium. The present invention relates to a digital audio device that does not need to record image data.

[0002]

2. Description of the Related Art Digital audio is now widely accepted for its excellent characteristics and ease of use. In addition, with the spread of CS broadcasting, digital audio broadcasting [DAB (Digital Audio Broadcasting)]
Is becoming widely used. Digital audio broadcasting includes a plurality of data fields in which audio signal data of a predetermined program is inserted by frequency multiplexing, and an information field in which program arrangement data indicating the correspondence between programs and data fields is inserted. This device receives the frequency multiplexed broadcast signal, demodulates the frequency multiplexed signal inserted into the data field according to the program specified by the user separately, converts the signal into an audio signal, and outputs it.

On the other hand, data transmitted by digital audio broadcasting is mainly audio data, and for example, still image data and moving image image data can be included in the data, and a function of reproducing the image data is provided on the receiver side. In some cases, the video can be output to a display device connected to the receiver in synchronization with the output of the audio.

[0004] For example, CD, MD, DVD and the like exist as recording media to be reproduced by digital audio equipment, and the data recording format to be recorded on the recording media is an MPEG format in addition to a general CD recording format. Compressed data, even in its MPEG format, eg MPE
Recording media recorded in various data formats, such as those employing the G3 format, are used. In these recording media as well, in addition to audio, video data is also recorded, and if the player has a function of reproducing the video data, the video is recorded on a display device connected to the player. The output can be synchronized with the output.

[0005]

For example, in digital audio broadcasting as described above, video data can be transmitted as described above. However, since video data requires a large data capacity, If a large amount of such video data is included in digital audio broadcast transmission data, the transmission amount of audio data decreases accordingly, which is not preferable. For this reason, at present, simple character information relating to the description of the audio broadcast being broadcast is merely transmitted.

[0006] However, it is natural for a user receiving an audio broadcast to enjoy displaying an image related to audio rather than simply listening to music. In audio broadcasting, there are also service broadcasting such as traffic-related broadcasting and weather forecast broadcasting.For example, in traffic-related broadcasting, it is easy to understand if a map related to the traffic information is displayed. It is easy to understand if a weather satellite image that captures the actual state of the clouds is displayed.

[0007] In addition, when it is desired to display a video together with audio, it is naturally possible by a conventional digital TV broadcast. However, the digital TV broadcast is mainly composed of a video, and the data amount is overwhelmingly large. For example, in a car audio device or the like, it is difficult for a receiver mainly composed of audio to receive a digital TV broadcast in which a large amount of data not desired by a user is transmitted and use a part of the data. It cannot be said that it is a receiving form that follows.

On the other hand, the digital audio player as described above can record video data as described above. However, similar to the above, since the video data requires a large data capacity, It is not preferable to record a large amount of such video data on a recording medium because a recording amount of audio data to be a main component is reduced. However, for those who use such a digital audio player, it is more enjoyable to display images related to audio than to simply listening to music, as in the case of the above-mentioned broadcast, and as much as possible Of course.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to enable an image to be displayed in synchronization with an audio output even when image data does not exist in input audio data. Images can be displayed in sync with the audio without reducing the amount of data,
It is an object of the present invention to provide a digital audio device capable of displaying a video synchronized with output audio without reducing the amount of audio data to be recorded on a recording medium.

[0010]

In order to solve the above-mentioned problems, the present invention provides a digital audio data input section for inputting digitized audio data, a location where audio synchronized image data exists from the digital audio data, and A data separation unit that separates information management data that records an image file name, an image file access unit that accesses a location where the image data exists, and captures image data of the image file name, and the captured image data. A digital audio device including a control unit for outputting the image data to the image display unit in synchronization with the output of the audio data.

In another aspect, the digital audio data is digital audio broadcast data.

In another aspect, the digital audio data is data on a data recording medium.

In another aspect, the means for accessing the image data is the Internet.

In another aspect, the image data is stored in an information center.

In another aspect, the recording position where the image data synchronized with the audio data exists is the recording position of the audio data to be output before the synchronized audio data.

According to another aspect, the image data is data of an image data recording device connected to the digital audio device.

According to another aspect of the present invention, there is provided an image memory for storing the fetched image data at least until a time synchronized with the audio data.

[0018]

Embodiments of the present invention will be described with reference to the drawings. First, a digital broadcast receiver for receiving a digital broadcast will be described as a digital audio device to which the present invention is applied. Other digital audio devices can be implemented by substantially the same configuration as this digital broadcast receiver and by operating similarly, as described later.

The outline of the frame structure of data handled in digital audio broadcasting will be described with reference to FIG. FIG. 2 shows a frame structure of mode II in digital audio broadcasting. The length of one frame, which is a basic frame structure, is 24 ms, and a synchronization unit (SYNC) of two symbols is provided first, and the synchronization unit is provided first. Has a null symbol used to recognize the start of the frame, followed by a synchronization symbol. After that, an information channel of three symbols (FIC: Fa)
st Information Channel) and a data field (DFL) of 72 symbols.

The data field (DFL) is divided into 72 data fields, and in each data field, audio data including audio such as a predetermined announcement, and sometimes a broadcast signal of image data such as a still image is transmitted. It is inserted so that a plurality of services can be received simultaneously from one broadcast wave. Which service corresponds to which data field is determined by three fast information blocks (FIs) in the fast information channel unit (FIC).
B) It is recorded in the data fields of 1-3.

Each of the high-speed information blocks (FIB) is configured as shown in the expanded configuration diagram, and a high-speed information data group (FIG) that is divided and recorded in a large number includes:
Various items as shown in the development configuration diagram are recorded. A data field is provided at the end of each item, in which various data can be recorded. The present invention particularly records synchronous image file address data as described later in this last data field portion. Although FIG. 2 shows the frame structure of mode II for satellite broadcasting using the 1.5 GHz band, the mode structure using the frequency band of 50 MHz to 250 MHz is shown.
The frame structure of I has almost the same configuration, and one frame length is 96 ms.

The creation of such data can be performed by a digital audio transmitter as shown in FIG. That is, as in the prior art, when image data such as an audio signal and a still image is present, the image data is input, and further information management data is input. In the present invention, in particular, a synchronous image file address signal described later is transmitted. An appropriate part of the information management data is input. These signals are converted to a data compression section 41 which encodes the MPEG signals with high efficiency.
a to 41m, and after performing the respective processes, sends the data to the transmission path coding units 42a to 42m to perform a process of adding an error detection and correction code.

These signals are sent to a time-division multiplexing unit 43, and each transmission path encoding unit 42
The output data of a to 42m is mapped to the predetermined data field shown in FIG. 2 to perform time division multiplexing. This signal is interleaved / OFDM (Orthoqonal Fre
The frequency division multiplexing (OFDM) modulation section 44 performs OFDM modulation, and interleaves by rearranging the order of multiplexed signals in a symbol according to a predetermined format. That is, the OFDM modulator divides each symbol of the transport reference symbol and the data symbol into N sets of 2 bits, differentially encodes the first data of each set as a real part and the second data as an imaginary part, and performs differential coding. The real part and the imaginary part are sequentially input to the inverse Fourier transform unit and subjected to IDFT processing to output a baseband modulated wave.

The modulated wave is converted in a quadrature modulator 45 into a real part and an imaginary part output from the interleave / OFDM modulator 24 into analog signals, which are multiplied by a cos wave and a sin wave having a transmission local frequency fc. , The multiplication results are combined and orthogonally transformed, and the transmission carrier obtained here is converted to RF
The signal is converted into an RF signal by a frequency converter 46, amplified by a transmission power amplifier 47, and transmitted from an antenna 48.

The signal having the data structure shown in FIG. 2 to which the synchronous image file address signal is input as described above is received by the digital audio receiver. FIG. 1 shows an example of the receiver. In the digital audio broadcast receiver 10, a signal transmitted from the above-described transmitter is received by an antenna 11, demodulated by an RF signal demodulator 12, and further demodulated by a baseband signal demodulator 13. The demodulation is performed by a control signal of the control unit 20.
Each of the above functional units corresponds to a digital audio data input unit in the present invention.

This data is sent to the data separation unit 14
Similarly to the data input by the transmitter shown in FIG. 3, the audio data 15 and the image display data 16 such as character information or a still image to be inserted as necessary are separated as in the related art, and further described later. The information channel data 17 in which the address where the image data file exists is also separated.

Of these data, audio data 1
5 is decoded by the audio signal decoding unit 18 and output from the speaker 22 via the amplifier 21. Also,
The image data 16 is output to the control unit 20, subjected to image data processing, and displayed on the image display unit 23. Further, data such as the address of the image data file recorded in the information channel data 17 and the image file name are as follows:
The image is read by the image file access unit 24 via the control unit 20. An image memory 19 is connected to the control unit 20, and since it is difficult to synchronize the image memory 19 with an audio output when an image is taken from the Internet, which will be described later, the image memory 19 is used in advance. This is used for displaying images while synchronizing with audio output. The designation of these image data can be performed by image file names such as JPEG and GIF.

The information channel data 17 includes an address signal of an image file to be displayed in synchronization with the currently output audio, and includes, for example, an address of a homepage on the Internet and a specific image of a specific frame of the homepage. The file name is recorded. As described above, a detailed address symbol including up to the file name of the image is finally used as the synchronous image file address signal, and when such an Internet address is recorded in the information channel data,
The signal is output from the image file access unit 24 to the Internet access unit 25 and connected to the telephone line 27 via the modem 25.
To access the image, and the image data is input from the image file access unit 24 to the control unit 20 via the reverse path. This image data is subjected to image data processing in the same manner as the image data 16 separated by the data separation unit 14, and is displayed on the image display unit 23.

The image data captured in this manner is set in advance by the broadcasting station in accordance with the audio to be broadcast. For example, when transmitting the music of "Ripple of the Danube", the image of the scene of the Danube is transmitted. , And the scenery of the area is displayed when the music of the "Grand Canyon" is displayed. In addition, "The Story of the Vienna Woods" displays a number of photos of Vienna in order, and "Waltz of the Puppy" displays the photos of the puppy. The video can be displayed in synchronization with the audio in various modes, such as displaying the images in sequence, and in the "four seasons" of Vivaldi, displaying the scenery of the domestic and overseas seasons in order according to the movement of the song. These photos are posted on various free image collections on the Internet, and there are many photos of countries and regions around the world in the form of travel reports, so you can specify them as addresses. .

As described above, images taken from the Internet do not need to correspond directly to audio music being broadcast. For example, pictures of various flowers are sequentially displayed in accordance with classical music, and underwater photographs are taken. It can also be set so that pictures of small animals such as birds and fish or pictures of landscapes are displayed in order.

In the case of traffic information provided in digital audio broadcasting, a road screen of a broadcasting area can be downloaded by accessing a home page of map data, and this can be displayed in accordance with the description of the traffic information. . In the case of the audio broadcast of the weather forecast provided in the digital audio broadcast, a satellite image of the area where the weather forecast is described may be acquired to display the state of clouds and the like. Furthermore, when broadcasting a tourist guide, it is possible to select the necessary image data from the CD-ROM or DVD-ROM of the navigation device and display the image data of the region.

The Internet accessed by the Internet access unit 25 shown in FIG. 1 includes, in addition to the various homepages described above, information that can provide various information using, for example, an Internet-compatible function of a vehicle navigation device. You may connect to the center,
For example, the address may be set so as to access the “inter-navi system” 29 and take in an image provided from the “inter-navi system” 29.

When an information providing system using such an information center is used, a large number of image providing files systematically arranged in the information center in accordance with the spread of the digital audio broadcast receiver of the present invention. Is stored, and the broadcast station can easily specify an image suitable for audio to be broadcast by specifying a specific image of the image providing file. In this case, a map image and a satellite image for the traffic information and the weather forecast may be prepared in the information center so as to cope with the audio broadcast of the above-mentioned traffic information and weather forecast. As described above, the cooperation between the broadcasting station and the information center makes it possible to easily provide an image suitable for the audio to be broadcast.

On the other hand, the image file access unit 24 shown in FIG.
Is connected to an image data recording device access unit 30. For example, C
D player is connected, and a specific CD recording a predetermined image file in the CD player.
-Load the ROM 31. By transmitting the image data file name corresponding to the image data in the specific CD-ROM as an image address in advance by the broadcasting station,
Image data recording device access unit 3 in synchronization with audio
0 can access the CD-ROM 31 to capture an image and display the image on the image display unit 23. This CD
-ROMs are sold on the market, users can purchase and use them. In addition, they can access the homepages of broadcasting stations and download images to be used in advance,
A CD may be produced individually using R or the like and used.

A DVD player is connected to the digital audio broadcast receiver.
As in the case of the CD-ROM, a specific DVD-RO recording a predetermined image file is stored in the player.
M32 may be loaded. Also at this time, the broadcast station side transmits the data of the image file name in advance as the address of the image, so that the image data recording device access unit 30
, An image can be captured and displayed on the image display unit 23. As the DVD-ROM 32 at this time, similarly to the case of the CD-ROM, a commercially available DVD-ROM can be used, and a DVD-ROM created by oneself can also be used.

Such a CD-ROM 31 or DVD-R
When the digital audio broadcast receiver is mounted on a vehicle and a navigation device is mounted on the vehicle, the OM 32 uses a CD-ROM or a DVD-ROM in which map data and facility information data are recorded by the navigation device. By specifying a specific CD-ROM or the like on the broadcast station side and specifying an image file name therein, the image can be used.
Further, when the image display method of the present invention has become widespread, a large number of predetermined images can be recorded on a DVD-ROM for a navigation device, and the broadcast station can specify these images. Can effectively use the free space of the current DVD-ROM for a navigation device.

In the present invention, an appropriate image can be displayed on an image display device in response to an audio broadcast by accessing an image data recording device such as the Internet or a CD-ROM as described above. But,
Looking at the frame configuration transmitted from the broadcasting station, this is normally set as shown in FIG. That is, when data consisting of a group of basic frames having the data structure shown in FIG. 2 is transmitted, the data is displayed in synchronization with the audio in the n-th frame at which the n-th music starts, as described above. The address signal of the file of the image to be recorded is recorded and transmitted.

In such a recording method, for example, C
When reading image data from a D-ROM, a DVD-ROM, or the like, when n frames are started, the CD-ROM is read at the same time.
Even if an image is fetched by accessing a ROM or the like, it is possible to make it in time so as not to give a sense of strangeness. However,
When accessing image data on the Internet, it takes a lot of time to access a homepage by telephone, confirm a password, transmit data, and so on. For example, in order to synchronize image data with audio data of the nth frame, In addition, if the image file address is recorded in the same n frames, the image cannot be displayed in synchronization with the immediately output sound, and after a while, the image is displayed suddenly, causing the user to feel uncomfortable. Becomes

As a countermeasure, as shown in FIG. 4B, for example, when an image is to be displayed simultaneously with the start of the m-th song, predetermined image data is displayed in synchronization with the m-th frame at which the m-th song starts. For example, an Internet address for displaying an image of the m-th song and a file name of the image are recorded in an information channel of an n-th frame where the n-th song 3 to 4 minutes before is started, and the audio output of the n-th song is started. At this time, an operation of connecting to the Internet from the image file access unit 24 of FIG. 1 via the Internet access unit 25 is performed. After the connection is completed, the image data for the m-th song is fetched, and the fetched image data is stored in the image memory 19 together with the address of the homepage and the image file number of the fetched image.

When the above operation is performed,
At the n-th frame in the broadcast data, it is recorded that the data to be taken in on the Internet from now on is synchronized with the m-th frame of the m-th music, and the control unit 20 receives the image from the Internet as described above. In this case, control is performed to compare with the frame of the audio data that is currently being output, and if it is determined that the frame is not the m-th frame yet, to store this in the image memory 19. At the time of audio output of the m-th frame,
The control unit 20 can automatically read the image data corresponding to the m-th frame recorded in the image memory 19 and display it. At this time, the homepage address and the file name of the image of the image to be displayed in synchronization with the information channel of the m-th frame are recorded in advance, so that the control unit 20 identifies this and the image memory 19 When it is determined that the data is recorded in the image memory 19, the image memory 19 can be accessed to read the data and display the image.

When accessing the Internet for capturing the image of the m-th frame in the n-th frame, when the Internet is already connected, a predetermined homepage is immediately accessed, the image data is captured, and the image memory is stored. The data is recorded in 19.

As described above, the means for prefetching image data into the image memory 19 is not limited to the case of connecting to the Internet as described above. It is recorded in a frame slightly before the frame of the audio data to be synchronized, and the image data is fetched simultaneously with the output of the audio data of the previous frame. This is stored in the image memory 19, and the image is synchronized with the audio data. This data can be read and used for display.

The image data thus prefetched into the image memory 19 is automatically read by the control unit when the audio output of the m-th frame is started.
Alternatively, the image data is read from the information image memory 19 and displayed on the image display unit 23 by specifying an image address recorded in the information channel of m frames.

As described above, the digital audio apparatus according to the present invention has been described with respect to a digital audio broadcast receiver which is one embodiment of the present invention. In addition, the present invention can be applied to a digital audio player 40 as shown in FIG. In the figure, parts having the same functions as those in FIG. 1 are denoted by the same reference numerals.

FIG. 5 shows an example in which an audio disk 41 such as a CD, MD, or DVD is used. This audio disk 41 is rotated by a motor 42 in the same manner as a conventional one, and the focal position of an optical pickup 43 is set. Part of the data is being read. The data is stored in the RF unit 4
4 to the system decoder 45 via the control unit 2
Under the control of 0, system decoding, such as restoring compressed data, is performed in accordance with the data format of the audio data recording medium. Each of the above functional units corresponds to a digital audio data input unit in the present invention. The data is output to the data separation unit 14, and thereafter, it operates using the same functional blocks as those of the digital broadcast receiver. Therefore, description of this functional block diagram is omitted.

As is well known, all of the above digital recording media have an information management area in which various programs can be recorded and various data can be recorded. The format of the data management area is as follows. Although different depending on the disc, the information management data can be recorded in synchronization with predetermined audio data, so that various data can be recorded here as needed. Therefore, the address where the image data exists and the image data file name can be recorded in this information management area in correspondence with the audio data, and the information management data separation unit 17 of the data separation unit 14 in FIG. Then, the address of each image data can be accessed from the image file access unit 24 via the control unit 20, and the image can be fetched as described above.

By using such a digital audio device, for example, an image data address is recorded in advance on a general CD, or a CD-R or CD-RW
By recording the address of the image data when producing the original CD, the MD and DV
Similarly, when recording audio data in D, the address of image data is also recorded in various recording formats such as recording in MPEG3 format on these recording media, so that the digital broadcast can be recorded. Like receiving,
Image data can be captured and displayed in synchronization with the output of the audio data.

Therefore, a large amount of image data which could not be displayed conventionally can be displayed on the image display unit. In addition, as a recording medium for audio data, not only the above-mentioned disk type but also a recording medium such as a memory card has recently been supplied at a low cost of about 64 MB. By recording audio data in such a memory card in the MPEG3 format and recording the address of the image data as described above, a large amount of images can be displayed even on a digital audio device using the memory card. Will be able to As the image data recording device, in addition to the devices described above, a built-in hard disk used in a personal computer, an external hard disk, and a hard disk such as a card-type hard disk can also be used. Downloaded image data can also be used.

It is to be noted that such a hard disk can be used as the image memory 19 for performing the above-described functions, so that after fetching image data from the Internet or the like and synchronizing it with audio data and outputting the same, the hard disk can be erased. It is also possible to make settings so that they can be used again next time. Particularly, in recent years, a hard disk of about 10 GB is supplied at a low cost, so that it is possible to easily cope with a hard disk having a smaller capacity and a lower cost.

As a result of performing the above-described functions in a digital audio device, for example, in a system in which various information is provided from an information center to a navigation device or the like via the Internet, such as the above-mentioned internavi, By preparing a large amount of image data at the center and recording the image file name on the audio CD, it is not necessary to access many homepages. Further, for example, by producing and distributing or selling the CD by the information center, the activity range of the information center can be further expanded. At this time, the information center or the like can provide the image data for a fee.

As described above, when capturing image data by connecting to the Internet, as in the case of the digital audio broadcast, the image data is connected to the Internet in advance prior to displaying the image in synchronization with the audio.
It is preferable to capture image data. At this time, on the premise that the data recorded on the recording medium is reproduced in order, it is possible to set to access the Internet about three minutes before the image display. However, considering that the user arbitrarily designates the order of the reproduced music pieces, the data related to the image information is read in advance and recorded in the memory at the time of reproducing the recording medium, and the next time the audio data is reproduced. It is preferable that synchronization can be achieved by reading the management data of the song.

[0052]

The present invention is configured as described above.
Even when there is no image data in the input audio data, the image can be displayed in synchronization with the audio output, and the user can see the video related to the output audio. Therefore, for example, it is possible to see scenes of a region related to the song, flowers, landscapes, fish and wild birds, and images of pets such as cats and dogs according to the mood of the song.

In the digital audio data used as digital audio broadcast data,
When set to transmit a large amount of image data, even in digital audio broadcasting where transmitted audio data is reduced, images related to audio can be displayed, and in addition to the various images as described above, For example, when broadcasting a weather forecast, an image of a meteorological satellite in the area is accessed, when a road traffic information is broadcast, a map image of a related area is accessed, and when a tourist guide is broadcast, an information recording medium connected to a navigation device is accessed. An appropriate video can be displayed in synchronization with the audio in accordance with the form of the broadcast, such as by taking in information on the area.

In the case where the digital audio data is data of a data recording medium, when recording as much audio data as possible in a limited memory capacity such as a CD, the recording amount of the audio data is reduced. Without this, an image can be displayed in synchronization with the reproduction of the audio data. Therefore, even small-capacity data recording media such as memory cards
When a large amount of audio data is recorded by using a high data compression technique such as EG3, a video can be further displayed at the time of reproducing the audio data, so that a highly usable audio data recording medium can be provided.

In the case where the means for accessing the image data is the Internet, a very large number of image data existing in the WWW can be accessed and used, so that more types of image data can be used. An appropriate video can be displayed in synchronization with the audio output.

When the image data stored in the information center is used, the image data concentrated and stored in a specific location can be used, and the addressing of the data can be easily performed. When accessing data, it is not necessary to access various homepages, so that access is simplified and image data can be taken in at high speed. In addition, the existence of such digital audio equipment allows an information center to distribute, sell, and operate a data recording medium using its own image data, and to charge for accessing image data. Various advantageous business activities, such as collection, can be performed.

Further, in the case where the recording position of the location where the image data synchronized with the audio data is present is set as the recording position of the audio data to be output before the synchronized audio data, for example, the image data is acquired via the Internet. When it is necessary to take into account the connection time to the Internet and the startup time of the image memory device, the image data can be taken in, and the image data can be reliably synchronized with the audio data. it can.

Further, when the image data is data of an image data recording device connected to the digital audio device, the image data recorded on a CD-ROM, DVD-ROM, or hard disk connected to the digital audio device may be used. Can be used.

In the case of an apparatus having an image memory for storing the fetched image data at least until the time synchronized with the audio data, the image data is fetched earlier and stored in the image memory, and the audio data and As it can be output at the time of synchronization, it is possible to capture image data early in advance considering the instability of Internet connection time,
In addition, it is possible to take in the image data early in advance in consideration of the difference in the activation time of the image data recording device, so that the audio data and the image data can be reliably synchronized.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of an embodiment in which the present invention is applied to a digital audio broadcast receiver.

FIG. 2 is a data configuration diagram showing a format of digital audio broadcast data used in the embodiment.

FIG. 3 is a block diagram of a digital audio broadcast transmitter that forms and outputs digital audio broadcast data.

4A and 4B are diagrams illustrating a frame of digital audio broadcasting data and an image reading time, in which FIG. 4A illustrates an example in which the output of audio data matches the reading and displaying of an image, and FIG. FIG. 9 is an explanatory diagram showing an example in which a connection instruction to the Internet and an image capture instruction when capturing image data via the Internet and an audio data output timing are different.

FIG. 5 is a functional block diagram of an embodiment in which the present invention is applied to an audio disc.

[Explanation of symbols]

 Reference Signs List 10 Digital audio broadcast receiving unit 14 Data separating unit 17 Information channel data separating unit 19 Image memory 20 Control unit 24 Image file access unit 25 Internet access unit 28 Internavi system 29 Image providing homepage 30 Image memory device access unit 31 CD-ROM 32 DVD-ROM 40 digital audio player

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5C052 AA01 DD04 DD10 5C053 FA20 FA24 GB36 JA01 JA24 LA07 LA14 5C064 BA07 BC10 BC20 BC25 BD08 BD09 5D077 AA28 AA38 BA18 CA02 DC20 DC22 EA34 GA03 HC27 5D110 AA15 AA17 DC11 DE11

Claims (8)

[Claims] A digital audio data input unit for inputting digitized audio data; and a data separation unit for separating information management data in which a location where audio synchronized image data exists and an image file name are recorded from the digital audio data. An image file access unit that accesses a location where the image data exists and captures image data of the image file name; and a control that outputs the captured image data to an image display unit in synchronization with output of audio data. Digital audio equipment, comprising: 2. The digital audio device according to claim 1, wherein the digital audio data is digital audio broadcast data. 3. The digital audio device according to claim 1, wherein the digital audio data is data on a data recording medium. 4. A means for accessing the image data,
2. The digital audio device according to claim 1, wherein the digital audio device is the Internet. 5. The digital audio device according to claim 4, wherein said image data is stored in an information center. 6. The digital recording apparatus according to claim 1, wherein the recording position of the location where the image data synchronized with the audio data exists is the recording position of the audio data output before the synchronized audio data. Audio equipment. 7. The digital audio device according to claim 1, wherein the image data is data of an image data recording device connected to the digital audio device. 8. The digital audio device according to claim 1, further comprising an image memory for storing the acquired image data at least until a time synchronized with the audio data.