DE2059009A1 - Microfilm reading device for data processing systems - Google Patents

Description

SIicrof ilmle s e device for data processing systems Area of application: The invention relates to external reading of microfilm punch cards during the data flow (Earten punching) without interrupting work.

Criticism of the current technology: Currently it is only possible To create microfilm, to evaluate and sort the individual images by hand, to then insert them into the punch card provided for this purpose, which has already been processed is to be glued in. All of these works require a lot of time and strong work Concentration of the person doing this work.

Since all of these works are individual work processes and by all means can be performed by different people, the error rate is very high (average 4 - 6 r :). There is also a separate check of the punched data with the values of the glued to the micro image is still required, the total time required with the conventional working method, an average of 100 - 120 seconds per unit.

Task: The invention is based on the task of eliminating the multitude of To reduce the previously required work steps to one, and thus the working hours to be shortened by 50 - 60 ffi per unit. All during normal processing occurring sources of error that interrupt the normal flow of information, can lead to the undetectability of individual data are prevented.

Solution: The object is achieved according to the invention in that one Link between the processing punch card machine and an external microfilm reader creates, This consists of an image recording optics, which with a movable Fiber optic image conductor is connected. The image is thus generated by the data processing machine transferred via the image guide to the microfilm reader and there in any Enlargement made visible. The optical system also moves synchronously with the punch card to be processed in the card punch. This ensures that a constant image for reading the required data is available.

Explanation: While a punch card is being punched, it moves from S -) al-çe .u column by about 2 mm. Would the recording optics in this process if you remain rigid, the image in the reader will be enlarged, e.g. 2o migrate by approx. 40 mm. So it becomes a 7-digit drawing number from the picture punched in the card, the image moves 28o mm from the center of the screen. Since the reader only has a Din-A 4 screen, part of the Hummer Already after 3 - 4 digits cut off it is no longer legible.

However, due to the synchronous operation of the recording optics, it remains until the end of the perforation is visible in the center of the screen.

Possible uses: Can be used by all companies that have their archives on IIlcrofilm and take over all office work as well as octene and technical Drawings become matted. LJie z. B.

Construction companies, architecture, engineering, and peehole law firms, all of them Electricity works, courts of law and similar institutions with filmed files.

Claim: lfir request-1 a claim for the image transmission technology into an external microfilm reader using a fiber optic image guide. The main claim depends on the type of transmission in connection with automatic synchronous operation, which the optical system transports synchronously with the card movement in the card punch.

Functional description: In a card punch the card bed is like this milled out that a rectangular breakthrough is created, which is at least in width The format of the microfilm to be illuminated is long and worked so long in length is, as the technology of the respective make of a card punch allows.

In this breakthrough, a Freanel lens is used to ensure uniform The light distribution of the light source I * attached underneath is used. After the automatic If a card is fed from the card magazine of the cooker, it is in the basic position. That means that the card is with the first column to be punched under the Punching the hole punch. At the same time, the automatic synchronous operation IV moves on In the basic position. The electrical impulse required for this is taken from the card punch It is the same one that enables the automatic card feeder at this stage During processing, the micro-image to be sent is located between the lighting source I and Aufnalungoptik II. It is taken over by the glass fiber image guide III and exits through the playback optics IV. The playback optics project the image via a mirror VIII onto the screen IX. Against lateral daylight glare the housing X is designed in such a way that the image quality is only available in direct sunlight is reduced. After that now the picture for the holes that are contained in it If data is to be punched into the punch card is legible, it will start punching. To After the first punching process, the punch card automatically moves into column position 2. This is approximately 2 mm in diameter. At the same time, the automatic synchronous operation moves controlled by the same impulse that triggers the card movement in the punch that Recording optics by the same amount in the direction in which the card is moving Has. This means that the image on the screen of the microfilm reader has its own position keep.

Claims (1)

New patent claim Device for reading microfilms inserted in punch cards during of the hole punching process, characterized in that a recording head on a with the punch card is arranged synchronously moving carrier and that the recording head with a projection head of a reading device that is at rest in relation to the recording head is connected via a fiber optic image conductor. (see page 2, paragraph 2 of the original description) Blank page