DE4036549A1 - Electronic remote copying method for facsimile appts. - converting original sheet format into A4 format for transmission and restoration of original size at reception end - Google Patents

Abstract

The method allows documents of a larger sheet format than A4 to be copied with a required width/height ratio, by individual imput of the width and height. The latter are initially converted into A4 format and the document information is transmitted to the receiver at which the signal sheet width and height are restored, for print out of the copy sheet. The document information is coded before transmission and decoded at the reception end. ADVANTAGE - Allows documents to be copied in original format, although large as is usual for buildings and underground construction plans.

Description

The invention relates to a method for remote copying of templates, e.g. B. of drawings larger than A4 with any aspect ratio width / height b / h.

Fax machines that allow original formats are known automatically reduce from B4 to A4 and send. Larger formats can only be processed in parts the result is in any case a A4 format. The disadvantage here is the time consumed by processing in a separate device. It is difficult to copy non-standard formats.

The invention has set itself the task of reducing the size of large originals to diminish. Basically, it should also be non-standard Formats and long strips in one operation treated and after transfer in original size be issued. Accordingly, there is the inventive Procedure in that the submission by appropriate Setting the width scale B = 210 / b and the height scale H = 297 / h in a first Level is reduced to A4 in one is transmitted to the receiver in a second stage third stage by reciprocal adjustment of the width and the height scale (1 / W or 1 / H) to the original Brought size b × h and in this one fourth stage is issued. The steps can be done directly be run through in succession. That way it is also possible to use large and non-standard formats Transfer time loss.

The device for performing the method according to the invention is identified by a transmitter with  Means to reduce the size of the original A4 and to send the reduced original as well as through a receiver with facilities for receiving the reduced Original, for re-enlargement to the original Size of the template and the output of the enlarged copy. This is especially important in the construction industry where formats larger than A0 can be used.

If templates such as the copying process are to remain secret, then the picture is encrypted before sending and after receiving deciphered again. This will be in further training of the inventive method before the device for Send an encryption device and behind the device a decryption device arranged for reception, so that even signals picked up without authorization have no inference allow the original content of the template.

Transmitter and receiver for working in both directions as well as the device for encryption and decryption are assembled in a compact housing. Thereby as by the possibility of the individual process steps (Shrink, encrypt, send, receive, decrypt, Zoom in) without pausing one after the other the loss times can be reduced to a minimum.

example

An original size w × h = 525 × 1336.5 mm should be copied. A4 = 210 × 297 mm.

Calculation of the width scale B:

Calculation of the height scale H:

reduction

Setting the width scale B to 1: 2.5 and of the height scale H to 1 / 4.5 results in a reduced Original of 210 × 297 (A4).

enlargement

Setting the reciprocal width scale 1 / B = 2.5 and the reciprocal height scale
1 / H = 4.5 after enlargement gives a copy width of

b = 210 × 2.5 = 525 mm

and after enlarging one Amount of copy of

h = 297 × 4.5 = 1336.5 mm

and thus the original size of the template from

525 x 1336.5 mm.

Claims (4)

1. Method for electronic remote copying of documents, eg. B. Drawings larger than A4 with any aspect ratio width / height b / h, characterized in that the template by adjusting the width scale B = 210 / b and the height scale H = 297 / h in a first step on the Format A4 is reduced, transmitted to the recipient in a second stage, brought to the original size b × h in a third stage by reciprocal adjustment of the width and height scale (1 / W or 1 / H) and in this is issued in a fourth stage. 2. Device for performing the method according to claim 1, characterized by a transmitter with facilities to reduce the size of the original to A4 and to Send the reduced template as well as a Receiver with facilities for receiving the scaled down Original, for re-enlargement to the original Size of the template and the output of the enlarged Copy. 3. The method according to claim 1, characterized in that the submission before sending is encrypted and then deciphered. 4. Apparatus according to claim 2, characterized in that an encryption device connected to the transmitter in front of the transmitter and behind it a decryption facility is arranged.