JPH10133924A - Data processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data processor, where plural printing processors shares the data processor and the change of a processing program does not give influence to the printing processors, by utilizing the data processor on a network concerning the function of the processing program. SOLUTION: When connection is requested to the data processor 10 by a device 10, each unit is initialized and when directory information is requested by an Is command, etc., a virtual file system unit 40 displays the null virtual directory of /data-in/, /jpeg/, /xwd/, is displayed. Then, at the time of putting raster data within the directory of /data-in/ with a file name being 'image', a virtual file called 'image' is generated in data-in/by a virtual directory unit and a virtual file obtained by adding the extender of each to an original name being 'image.jpg' under /jpeg/ and 'image. xwd' under/xwd.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data processing apparatus capable of centrally managing a processing program of a printing apparatus such as a printer connected to a network, and in which a change in the processing program does not affect other network devices.

[0002]

2. Description of the Related Art Recently, OA of personal computers, facsimile machines, etc.
With the spread of devices, network printers that use a plurality of printers connected by a network have been widely used in offices, factories, and the like. By the way, such a network printer activates a processing program stored therein to process a print output request and output data, and performs those processes.

[0003]

For this reason, when it is necessary to change the processing program of each printer connected to the network, it is necessary to change the processing program individually for all the printers, which is a problem for the user. It has become a burden, and there has been a demand for a data processing device that has reduced this trouble.

Accordingly, a first object of the present invention is to provide a conventional print processing apparatus, such as a network printer, by using a data processing apparatus on a network to execute a function of a processing program so that data can be exchanged between a plurality of print processing apparatuses. An object of the present invention is to provide a data processing device that shares a processing device and prevents a change in a processing program from affecting a print processing device. Further, a second object of the present invention is to eliminate the need for providing a specific interface by using a virtual file system as in the case of input data transfer, even when parameters need to be passed to the processing program by output data. An object of the present invention is to provide a data processing device as described above.

[0005]

According to the first aspect of the present invention, a data processing apparatus includes a network input / output unit, a virtual file system unit, a data processing unit, and a plurality of processing program units. It has the function of a virtual file system having a directory to store as a virtual file and a directory to store output data according to a format as a virtual file, and stores input data sent via a connected network as a virtual file. The first object is achieved by acquiring output data by displaying the corresponding output data in the directory for each format as a virtual file in the directory and acquiring the displayed file.

According to a second aspect of the present invention, a data processing device includes a network input / output unit, a virtual file system unit, a data processing unit and a plurality of processing program units, and a directory for storing input data as a virtual file. It has the function of a virtual file system having a directory for storing output data according to a format as a virtual file, storing input data sent via a connected network as a virtual file, and converting input data. When the necessary data is stored as a virtual file, the corresponding output data is displayed as a virtual file in the directory for each format, and by obtaining the displayed file, the output data is obtained. The second purpose It is formed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the data processing apparatus according to the present invention will be described in detail with reference to FIG. FIG.
FIG. 1 is a block diagram illustrating a configuration of a data processing device 10 according to an embodiment of the present invention. This data processing device 10
Is composed of a network input / output unit 50, a virtual file system unit 40, a data processing unit 20, and a plurality of processing program units 30. The data processing device 10 is connected to the device 1 via a network.

In FIG. 1, as a specific example, a processing program unit ras for converting raster data into JPEG format image data is stored in a data processing device 10.
X-WD ter-to-jpeg and raster data
This figure shows an example in which a processing program unit raster-to-xwd for converting into image data of a format is stored.

First, when a connection request is sent from the device 1 to the data processing device 10 by FTP or the like, the connection request is accepted by the network input / output unit 50 and each unit is initialized. Next, when directory information is requested by an Is command or the like, the virtual file system unit 40 causes the / data-in /, / jpeg /, / xwd.
The empty virtual directory of /, is displayed. here,/
When the raster data is put in the directory of data-in / with the file name of image, a virtual file of image is created in data-in / by the virtual directory unit, and
jpeg / image. jpg, / xwd / image. A virtual file is created with the original name xwd and each extension.

When converting to a JPEG file, / j
peg / image. By getting jpg,
The data processing unit 20 is a raster-to-jpe
g starts the processing program unit 30 and outputs the converted data to the device 1 via the virtual file system unit 40 and the network input / output unit 50.

In the above process, if a parameter to be given to the processing program unit 30 is required, / data
By putting the parameter identifier and the parameter under an appropriate name (for example, param) under -in /, the virtual file system unit 40 identifies that the transmitted content is a parameter, and stores the content in the data processing unit 20. And is used when the processing program unit 30 is started.

[0012]

According to the first aspect of the present invention, a processing program can be centrally managed, and a change in the processing program does not affect other network devices.
Further, a processing program can be easily added, and the processing apparatus can be shared with another device connected via a network.

According to the second aspect of the present invention, in addition to the effect of the first aspect, when a parameter is required for a processing program, a virtual file system is used in the same manner as in the transfer of input data. Can be processed.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a basic configuration of a data processing device according to an embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 data processing device 20 data processing unit 30 processing program unit 40 virtual file system unit 50 network input / output unit

Claims (2)

[Claims] 1. A system comprising a network input / output unit, a virtual file system unit, a data processing unit, and a plurality of processing program units, wherein a directory for storing input data as a virtual file and output data in accordance with a format as a virtual file. It has the function of a virtual file system that has a directory to store. When input data sent via a connected network is stored as a virtual file, output data corresponding to that format is stored as a virtual file in the directory for each format. A data processing device for acquiring output data by acquiring the displayed file. 2. A system comprising a network input / output unit, a virtual file system unit, a data processing unit and a plurality of processing program units, wherein a directory for storing input data as a virtual file and output data according to a format are stored as a virtual file. Has a function of a virtual file system having a directory to store input data sent via a connected network as a virtual file, and stores data necessary for converting the input data as a virtual file. And output data corresponding to the format is displayed as a virtual file in a directory for each format, and the displayed file is obtained to obtain output data.