JPS63224487A - Digital data recorder controller - Google Patents

Abstract

PURPOSE:To reduce the storage space and running cost of a digital data recorder controller by providing a 1st storage means which receives and passage a prescribed amount D0 of image data, a 2nd storage means which receives and passage image data more than said prescribed amount, and a control means which controls both storage means. CONSTITUTION:An input/output control part 8 when inputting a write command commands the transfer of the saturated prescribed amount D0 of image data to a buffer 6 every time a buffer 5 stored with the image data of an input/ output processing part 1 is saturated. Consequently, the buffer 6 sends out a large amount of image data which are eight times the prescribed amount D0 to a digital data recorder 3 through a data input/output part 7. Then an input/ output control part 8 outputs a read command to the data input/output part 7 and an interface 9, and then the image data which are eight times as large as the prescribed amount D0 are outputted to the buffer 6 through the data input/output part 7. The input/output control part 8 commands the successive transfer of the large amount of image data stored in the buffer 6 to the buffer 5 in units of a prescribed amount D0 of image data.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to an image processing device used in an information processing device, and in particular to a digital data recorder when a digital data recorder is used as an external storage device in the image processing device. Regarding a control device.

(Prior Art) Conventionally, magnetic disk devices, optical disk devices, magnetic tape devices, etc. have been used as external storage devices for this type of image processing apparatus.

Conventional image processing devices connected to these external storage devices use a maximum of 500 kilobytes (hereinafter abbreviated as KB) of data for one image when exchanging data with the external storage device. A small amount of data was being transferred.

(Problems to be Solved by the Invention) However, in fields where a large amount of image data is generated, such as medical image processing devices, when reading X-ray film, Xl! The amount of data per sheet of film is 4 megabytes (MB), and if 1000 X-ray films are generated per day, the amount of data in one day is 4 gigabytes (QB). Storing this amount of data for at least the legal three years requires a large number of external storage devices. Furthermore, there is a drawback that the storage space of the external storage device increases and the running cost of the entire device increases significantly.

The present invention has been made in view of the above problems, and uses a large-capacity digital data recorder as an external storage means, and controls writing and reading of data to and from the digital data recorder when the digital data recorder is used. An object of the present invention is to provide a digital data recorder control device.

(Means for Solving the Problem) Means provided by the present invention to solve the above-mentioned problems is to write the image data output from the input/output processing section to the digital data recorder, and to write the image data output from the input/output processing section to the digital data recorder. A digital data recorder control device that reads image data written in the input/output processing section and transfers the image data to the input/output processing section, the first storage means transferring a predetermined amount Do of image data to and from the input/output processing section; , the predetermined amount D between the digital data recorder and the digital data recorder.
o, and a control means for controlling both of the storage means, and the control means controls the first storage means when writing the image data. A command is given to sequentially transfer the predetermined amount Do of image data to the second storage means each time the storage capacity of the image data is saturated. The method is characterized in that it instructs that the image data be divided into two image data and transferred to the first storage means.

(Example) FIG. 1 is a block diagram showing one embodiment of the present invention.

In FIG. 1, 1 is an input/output processing section, 2 is a digital data recorder control device, and 3 is a digital data recorder. The digital data recorder control section f2 writes the image data output from the input/output processing section 1 into the digital data recorder 3, and also reads the image data written to the digital data recorder 3 and transfers it to the input/output processing section 1. The buffer 5 has a storage capacity for storing a predetermined amount of image data, for example, image data for one image, and the buffer 6 stores a larger capacity of image data than the predetermined amount DO, for example, image data 8 times the amount of Do. It has the storage capacity to The input/output control unit 8 controls the buffers 5 and 6 based on a write command or a read command from the input/output processing unit 1 input via the interface 4.
control. Specifically, when inputting a write command, the input/output control section 8 writes a predetermined amount DO of the saturated image data every time the storage capacity of the buffer 5 in which the image data of the input/output processing section 1 is stored is saturated. A command is given to sequentially transfer the data to the buffer 6. Further, when the storage capacity of the buffer 6 is saturated, the input/output control unit 8 outputs a command to the data input/output unit 7 and the interface 9 to write the stored image data. As a result, the buffer 6 sends a large capacity image data eight times the predetermined amount Do to the digital data recorder 3 via the data input/output section 7.

Next, the case of reading image data from the digital data recorder 3 will be explained. When the input/output control section 8 outputs a read command to the data input/output section 7 and the interface 9, a large amount of image data stored in the digital data recorder 3, that is, eight times the predetermined amount DO, is transferred to the data input/output section. The zero-order input/output control unit 8 outputs the zero-order image data stored in the buffer 6 to a predetermined amount DO of image data and sequentially transfers them to the buffer 5. do. Therefore, when a predetermined amount Do of image data is transferred from the buffer 6 to the buffer 5,
This predetermined amount Do of image data is sent to the input/output processing section 1 via the interface 4.

Furthermore, in the above-mentioned readout operation, the case where image data is taken out from the digital data recorder 3 has been explained, but when the target image data is stored in the buffer 6,
By reading directly from the buffer 6, the access time can be reduced.

In addition, ECC (error check) is applied to the image data to be stored.
By adding "and collection", image data can be stored reliably and safely.

(Effects of the Invention) As described above, the present invention employs a digital data recorder, which has not been used in the past, as an external storage device for an image processing apparatus, and can store a large amount of data. Furthermore, by arranging two stages of buffer memory, one with a small capacity and one with a large capacity, in order to connect the digital data recorder to the image processing apparatus, operations with different data transfer rates can be performed separately. In addition, by retaining part of the data in the digital data recorder in a large capacity buffer memory when reading data,
When data is directly read from this large capacity buffer memory, access time can be shortened and at the same time the running load on the digital data recorder can be reduced.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a digital data recorder control device of the present invention. DESCRIPTION OF SYMBOLS 1... Input/output processing unit, 2... Digital data recorder control device, 3... Digital data recorder, 4
...Interface section, 5...Buffer memory,
6... Buffer memory, 7... Data input/output section, 8
... input/output control section, 9... interface section.

Claims (1)

[Scope of Claims] A digital data recorder control device that writes image data output from an input/output processing section to a digital data recorder, and reads the image data written to the digital data recorder and transfers it to the input/output processing section. , a predetermined amount D is connected to the input/output processing section.
The predetermined amount Do is transferred between the first storage means for exchanging image data of o and the digital data recorder.
The second storage means exchanges a larger amount of image data, and the control means controls both of the storage means, and the control means controls the first storage means when writing the image data. Each time the storage capacity is saturated, the predetermined amount Do
The first storage means is instructed to sequentially transfer the image data of 1. A digital data recorder control device, characterized in that the digital data recorder control device instructs the second storage means to divide the data into two and transfer it to the first storage means.