JPH09306099A - Data system and data processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress enlargement of a circuit scale by providing a format converting means for converting an input data into a different format form based on format information obtained by a format information extracting means. SOLUTION: Recorded data and information about its format conversion are processed by a 1st recording/reproducing circuit 105, and the processed data is transferred via a bus interface 102 to an objective device. When a data formatted in a 1st form by a recording device 1 is an image, a sound and a character, etc., the data is sent to a data processing device 100. The sent data is inputted to the processing device 100, and the information about the 1st format conversion by the recording device 1 is extracted by a format converting information extractor 202 from the input data. The formatted data is converted into its original data by a format converter 201. The converted original data is outputted to a data processing circuit 101 to be processed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data system and a data processing device for inputting and outputting digital data to perform arithmetic processing and the like.

[0002]

2. Description of the Related Art Recently, as the performance of computer equipment has improved, the amount of data to be handled has increased, and accordingly, the capacity of recording media has been required to be increased. Therefore, various recording devices have been commercialized or developed. Examples of products currently used as products include hard disk devices and C
8 using a disk medium such as a D-ROM device,
There are some which use a tape medium such as a mm tape or DAT (Digital Audio Tape). Due to technological development, these data recording devices are being made larger in capacity and higher in transfer year after year.

When data is recorded in these recording devices, it is recorded in a unique format suitable for each recording medium. Therefore, a circuit for converting the format of data is prepared for each recording device. If the data recorded in the recording device is video, audio, characters, etc., it is restored to the original state before being formatted by the format conversion circuit and sent to the data processing circuit for outputting them. Will be output from there.

Further, in the conventional data processing apparatus as shown in FIG. 4, for example, when the data formatted in the first format in the recording apparatus 1 is formatted in the second format and recorded in the recording apparatus 2. First, the first format converter 103 in the recording device 1 restores the format data of the first format to the original state and sends it to the recording device 2. On the other hand, in the recording device 2, the transmitted data is converted by the second format converter 104 inside the recording device 2 in the format of the second format and recorded on the recording medium.

[0005]

The problems to be solved by the present invention will be described.

The data formatted in the first format is restored from the recording device 1 to the original data before being formatted and sent to the data processing device or the like. Next, the recording device 2
If the data newly formatted in the second format is restored to the original data before being formatted and is to be sent to the data processing device or the like, the corresponding format conversion is performed before that. There is a need. In this case, as shown in FIG. 4, it is necessary to add the second format converter 104 inside the recording device 2. That is, if a format conversion circuit is prepared for each format of each recording device, the circuit scale becomes large and the cost of each recording device increases accordingly.

Also, when the data formatted in the first format in the recording apparatus 1 is formatted in the second format and recorded in the recording apparatus 2, the data is first converted by the format conversion circuit in the recording apparatus 1. The format data of the format 1 is restored to the original state and sent to the recording device 2. Then, in the recording device 2, the format conversion circuit in the recording device 2 converts the transmitted data into the format of the second format and records it in the recording medium, and the circuit scale becomes large as described above. Further, the cost of each recording device increases accordingly.

The present invention has been made in consideration of the problems of the conventional data processing apparatus, and an object thereof is to provide a data system and a data processing apparatus capable of suppressing an increase in circuit scale and an increase in cost of a recording apparatus. Is.

[0009]

According to a first aspect of the present invention, there is provided data input means for inputting data and format information converted in a predetermined format, and format information among the input data and format information. A data processing device comprising: a format information extraction unit to be obtained; and a format conversion unit to convert input data into data in another format based on the format information obtained by the format information extraction unit.

According to a third aspect of the present invention, a recording device for recording data and format information recorded in a predetermined format, and the format information among the data and format information read and input from the recording device are recorded. A plurality of recording devices; and a data processing device having format conversion means for converting the input data into data of another format based on the format information extraction means to be obtained and the format information obtained by the format information extraction means. The data processing device is a data system connected to the individual bus and the data processing device is connected to the bus.

According to a fifth aspect of the present invention, a new format conversion information input means for inputting information of a predetermined format of data, and a predetermined data format based on the format information input by the new format conversion information input means. The data processing device is provided with a format conversion means for converting in the above format and a format conversion information adding means for adding format information to the data format-converted by the format conversion means.

According to a sixth aspect of the present invention, there is provided a data processing device according to the fifth aspect, a plurality of recording devices having different formats connected to the data processing device via a bus, and the plurality of recording devices. The new format conversion information inputting means is a data system for inputting the information of the format corresponding to the recording device selected by the recording device selecting means.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing an embodiment.

The first embodiment of the present invention inputs digital data formatted in a predetermined format, performs a conversion process for restoring it to the original format, and then converts the data into the following format. Data processing circuit, here video, audio,
A data processing device for sending to a circuit for outputting data such as characters will be described as an example.

FIG. 1 is a block diagram of a data system according to the first embodiment of the present invention. The data system of the present embodiment includes a data processing circuit 101 that performs data calculation and output, a bus interface 102 that inputs and outputs data, a format conversion information extractor 202 that extracts format conversion information from the input data, A data processing device 100 including a format converter 201 for converting the format of data based on the format conversion information, a recording device 1 connected to the data processing device 100 via a bus, and a recording device 2, and recording The device 1 includes a bus interface 102 and a first
The recording / reproducing circuit 105 is configured, and the recording device 2 is configured by the interface 102 and the second recording / reproducing circuit 106.

Here, the data formatted in the first format is recorded in the recording device 1. At that time, information necessary for restoring the data formatted in the first format to the data before being formatted is also recorded together with the data. The recorded data and the information regarding the format conversion thereof are subjected to reproduction signal processing by the first recording / reproducing circuit 105. The data output from the first recording / reproducing circuit 105 and the information regarding the format conversion thereof are stored in the bus interface 1
It is input to 02. The bus interface 102 performs processing for transferring data to another device via the bus. Then, the data is transferred to the target device through the bus.

If the data formatted in the first format in the recording device 1 is video, audio, characters, etc., it is sent to the data processing device 100 for outputting it. In the data processing device 100, the data transmitted through the bus is input by the bus interface 102, and the data converted into the first format is restored to the original data in order to be transferred to another device. That is, the format conversion information extractor 202 extracts, from the data input through the bus interface 102, the information regarding the first format conversion in the recording device 1 that is sent together with the data. The extracted information and data are sent to the format converter 201, and the information regarding the first format conversion is stored therein.

In the format converter 201, the data formatted in the first format from the recording device 1
Based on the information about the format, the original data before the format is converted. At this time, if there is copyright information as the format information, if it prohibits the format conversion and output, it is possible to prevent the conversion. The data converted into the original data is output to the next data processing circuit 101. In the data processing circuit 101, when the data is video, audio, characters, etc., processing for outputting the data is performed and output.

Next, it is assumed that the recording device 2 which records data formatted in a format different from that of the recording device 1 is connected to the bus. In that case, the data is formatted in the second format. The procedure for transferring data to the data processing device 100 is the same as that of the recording device 1 described above, and information regarding format conversion is also sent to the data processing device 100 together with the data. Then, in the data processing device 100, the format converter 201 enables the format conversion based on the information regarding the format conversion.

With the above configuration, even if the data is reproduced from the recording device in which the data is formatted and recorded in a new format and the data is input to the data processing device, the information regarding the format is added and transmitted. By doing so, it becomes possible to convert the format of the data without providing a separate format conversion circuit on the recording device side and without adding a new circuit on the data processing device side.

Although the data transfer between the recording device and the data processing device is performed via the bus, the above-mentioned effects can be obtained by using any transfer method.

Further, although the description has been given assuming that the data is input from the recording device, the present invention is not limited to this, and the data may be transferred between other arbitrary types of devices.

Although the method of adding the information about the format conversion to the data is used as an example, the information about the format conversion is not limited to this if it can be reproduced at the same time even if it is recorded separately from the data. is not.

Although an example in which two recording devices are connected to a bus has been described, the number of devices can be increased as much as possible to the capacity of the bus.

FIG. 2 is a block diagram showing a data system according to the second embodiment of the present invention. In the second embodiment, the digital data formatted in the first format of the recording device 1 is input, and it is converted into a new format format, here, data converted into the second format format. A data processing device for outputting to the recording device 2 will be described as an example.

In FIG. 2, the data system of the present embodiment has a bus interface 1 for inputting / outputting data.
02 and the first recording / reproducing circuit 105.
A recording device 2 including a bus interface 102 and a second recording / reproducing circuit 106, a bus interface 102, a format converter 201 for converting data based on input format conversion information, and a format conversion information input A data processing device 20 comprising a new format conversion information input device 301 and a format conversion information adding / extracting device 302 for adding format conversion information when the data is converted to the converted data.
It is composed of 0.

Here, in the recording device 1, data formatted in the first format is recorded. At that time, information necessary for restoring the data formatted in the first format to the data before being formatted is also recorded together with the data. The recorded data and the information regarding the format conversion thereof are subjected to reproduction signal processing by the first recording / reproducing circuit 105. Information regarding the data output from the first recording / reproducing circuit 105 and its format is stored in the bus interface 102.
Is input to The bus interface 102 performs processing for transferring data to another device via the bus. Then, the target data processing device 20 through the bus
Data is transferred to 0.

In the data processing device 200, the data transmitted through the bus is input by the bus interface 102, and the data converted into the first format is restored to the original data in order to be transferred to another device. . That is, the format conversion information adder / extractor 302 extracts the information about the first format in the recording device 1 sent from the data input through the bus interface 102 together with the data. The extracted information and data are sent to the format converter 201, and the information regarding the first format conversion is stored therein.

In the format converter 201, the data formatted in the first format from the recording device 1
Based on the information regarding the format conversion, the original data before the format is converted. At this time, if there is copyright information as the format information, if it prohibits the format conversion and output, it is possible to prevent the conversion. Alternatively, the information is sent to another recording device.

Here, it is assumed that a recording device 2 for converting data into a second format, which is a new format, and recording data is connected to the bus. Here, as means for obtaining information for converting to the format of the second format, a new format conversion information input device 301 is provided to obtain the information from the outside. For example, the information is obtained from a removable auxiliary storage device or via a communication network. The information for converting to the format of the second format thus obtained is stored in the format converter 201. In the format converter 201, based on the information for converting into the format of the second format, the data inputted from the recording device 1 and converted into the original data is further recorded in the recording device 2. Convert to the second format. Then, the converted data is sent to the format conversion information adder / extractor 302, where information about the format is added to the data and output to the bus interface 102. This time,
When the information about the copyright is obtained from the recording apparatus 1 as described above, it is also added and transmitted at the same time. Then, the data is sent to the recording device 2 through the bus. In the recording device 2, the input data is sent to the second recording / reproducing circuit 106 through the bus interface 102 and recorded on the recording medium.

With the above configuration, a new format conversion circuit is added to the recording apparatus side by obtaining information regarding the format conversion from the outside even for a recording apparatus that needs to format and record in a new format. It is possible to deal with this by simply providing one minimum circuit addition on the data processing device side. As a result, no matter how new recording formats are added, the circuit load on the recording device side can be suppressed.
Further, it becomes possible to easily increase the number of devices that can be connected to the bus.

FIG. 3 is a block diagram showing a data system according to the third embodiment of the present invention. The present embodiment has a configuration in which a recording device selection unit 303 is added to the configuration of the second embodiment, and the other configurations are the same as those of the second embodiment. In FIG. 3, the recording device selection means 303 has format information corresponding to each recording device in advance. For example, the format information is input to the new format conversion information input device 301 only by the user selecting the recording device. To be done. This allows easy input of format information.

As the means for obtaining the information regarding the new format conversion, the information is obtained from the removable auxiliary storage device or via the communication network, but the present invention is not limited to this. Not a thing.

As described above, even if the data is reproduced from the recording device in which the data is formatted and recorded in the new format and the data is input to the data processing device, the information regarding the format conversion is added. By being transmitted, it becomes possible to convert the format of the data without providing a separate format conversion circuit on the recording device side and without adding a new circuit on the data processing device side, thereby increasing the circuit scale. Therefore, the cost of the recording apparatus can be suppressed.

Further, even for a recording device that needs to be formatted and recorded in a new format, information about the format conversion is obtained from the outside, so that a new format conversion circuit is not added to the recording device side. This can be dealt with by providing only one minimum circuit addition on the data processing device side. As a result, no matter how new recording formats are added, the circuit load on the recording device side can be suppressed. It is also possible to easily increase the number of devices that can be connected to the bus. Then, it becomes possible to build a system with high expandability at low cost.

[0036]

As is apparent from the above description, the present invention is based on the format information extracting means for obtaining the format information from the input data and the format information and the format information obtained by the format information extracting means. Since it has the format conversion means for converting the input data into the data of another format format, it has an advantage that the increase of the circuit scale and the cost of the recording apparatus can be suppressed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a data system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a data system according to a second embodiment of the present invention.

FIG. 3 is a block diagram showing a data system according to a third embodiment of the present invention.

FIG. 4 is a block diagram showing a conventional data processing device.

[Explanation of symbols]

 101 data processing circuit 102 bus interface 103 first format converter 104 second format converter 105 first recording / reproducing circuit 106 second recording / reproducing circuit 201 format converter 202 format conversion information extractor 301 new format conversion information input device 302 format conversion information adding / extracting device 303 recording device selecting means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Chiyoko Matsumi 1006 Ojidoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (9)

[Claims] 1. A data input means for inputting data and format information converted in a predetermined format, and among the input data and format information,
A format information extracting unit for obtaining the format information, and a format converting unit for converting the input data into data of another format based on the format information obtained by the format information extracting unit. And data processing device. 2. The format information further includes copyright information relating to the copyright of the data, and the format information extracting means extracts the copyright information from the input data to obtain the format. The conversion means, based on the extracted copyright information,
The data processing apparatus according to claim 1, wherein the input data is not converted into data in another format when the conversion or output of the input data is prohibited. 3. A recording device for recording data and format information recorded in a predetermined format, and format information extraction for obtaining the format information from the data and format information read and input from the recording device. Means and a data processing device having a format conversion means for converting the input data into data of another format based on the format information obtained by the format information extraction means,
A data system, wherein a plurality of the recording devices are connected to a bus, and the data processing device is connected to the bus. 4. The format information further includes copyright information relating to the copyright of the data, and the format information extracting means extracts the copyright information from the input data to obtain the format. The conversion means, based on the extracted copyright information,
4. The data system according to claim 3, wherein when the conversion or the output of the input data is prohibited, the input data is not converted into the data of another format. 5. New format conversion information input means for inputting information of a predetermined format of data, and conversion of the data in the predetermined format based on the format information input by the new format conversion information input means. And a format conversion information adding means for adding the information of the format to the data format-converted by the format conversion means. 6. The data processing device according to claim 5, a plurality of recording devices of different formats connected to the data processing device via a bus, and a recording device selection for selecting the plurality of recording devices. Means for inputting information of a format corresponding to the recording device selected by the recording device selecting means, the new format conversion information inputting means. 7. The new format conversion information input means comprises:
7. The data system according to claim 6, wherein the information in the predetermined format is input from an external auxiliary storage device or an external communication network. 8. The new format conversion information input means comprises:
Further, the copyright information regarding the copyright to the data is input, and the format conversion means includes:
8. The data system according to claim 6, wherein the data is not converted into the predetermined format when the conversion or output of the data is prohibited based on the input copyright information. . 9. The data system according to claim 8, wherein the format conversion information adding means adds the copyright information to the data.