JPS61117778A - Method of optional access of continuous memory medium - Google Patents

Abstract

PURPOSE:To read out necessary one easily from pictures recorded continuously by recording on a tape while including specific information when recording pictures, and checking up the information at the time of reading. CONSTITUTION:After mounting a tape, and an instruction of for instance, picture writing is inputted from a keyboard, and a picture displayed on a display unit 3 is written. Then, the number of inputted picture is written on the tape, and then the picture is transferred from a memory 5 to the tape and recorded. On the other hand, when an instruction to read out the picture is inputted, the number of picture recorded on the tape is taken in a controlling device 6, and compared with the number of picture to be read out inputted from the keyboard 4. When they coincide, the picture is displayed on the display unit 3, and transferred to the picture memory 5. On the other hand, inputted number does not conform with the number of the picture, the tape is advanced to a position where the next number of the picture can be read.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a method of accessing a medium that continuously stores information, and particularly to an image processing device that can read any image from a magnetic tape during playback. This invention relates to a method for arbitrarily accessing a suitable continuous storage medium.

[Background of the invention]

In image processing devices, magnetic tape is often used to record images, but since magnetic tape stores images continuously, any image on the tape can be read out easily and quickly. There is a problem in this respect.

[Purpose of the invention]

An object of the present invention is to provide an arbitrary access method for a continuous storage medium that satisfies the convenience of easily reading out only necessary images from continuously recorded images.

[Summary of the invention]

The present invention aims to achieve the object by recording specific information along with the data when recording data on a medium that continuously stores information such as a magnetic tape, and collating the information when reading out the data. So, there it is.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention applied to an image processing apparatus, and FIG. 2 is a flowchart for explaining its operation.

In FIG. 1, reference numeral 1 indicates a tape reader having a playback head to read out images recorded on the tape. 2 is a tape writer having a recording head, which records an image on the tape. 3 is a display device that displays images, image numbers, and the like. Reference numeral 4 denotes a keyboard through which reading and writing commands and image numbers are input. Reference numeral 5 denotes an image memory for storing images in order to perform processing on the images. Reference numeral 6 denotes a control device for taking out images and data from these devices, storing them, inspecting them, and controlling the operations of these devices, and controls the operations of each of the above-mentioned devices according to a program stored inside.

Next, the operation of each part shown in FIG. 1 will be explained based on the flowchart shown in FIG.

First, the operator attaches the tape to a predetermined location (Step 100 and subsequent steps are omitted). Next, when the operator inputs an image reading or writing command from the keyboard 4, this command is taken into the control device 6 and judged (101).

When a command to write an image was input, the image displayed on the display 3 was to be written, and the image number input by the operator was written on the tape (1
02), then transfer the image from the image memory 5 to the tape (
103) Record L.

On the other hand, when a command to read an image is input,
The number of the image recorded on the tape is taken into the control device (104), and compared with the number of the image to be read that is input by the operator from the keyboard 4 (105). If the input number and the image number match, the image is displayed on the display 3 (106) and further transferred to the image memory (107). On the other hand, if the input number and the image number do not match, the tape is advanced to a position where the next image number can be read (tOS).

At this point, it is determined whether the tape has progressed to the end (10
9), if it is not the end, return to 104.

If the tape has progressed to the end, it is determined whether this end is detected for the second time (110).

If it is the second time, the entire tape has been searched, so a message indicating that the tape has ended is displayed on the display 3. On the other hand, if it is the first time you have reached the end of the tape, rewind the tape to the beginning.
2), return to 104.

Through the above operations, any image can be easily written or read by a single operation by the operator. Furthermore, according to this embodiment, it is possible to avoid storing unnecessary information on the tape, so there is an effect that the tape can be saved.

〔Effect of the invention〕

According to the present invention, arbitrary information can be easily read out, which is effective in improving operability.

[Brief explanation of drawings]

Claims (1)

[Claims] 1. An image processing device comprising a tape for storing images, a device for recording images on the tape and reading images from the tape, and a computing unit for controlling the device,
1. An arbitrary access method for a continuous storage medium, characterized in that when recording an image, information for a specific purpose is recorded on the tape, and when reading an image, it has an electrical control process for verifying with the information.