DE2065497C3 - Input arrangement for photo typesetting machines - Google Patents

Description

45

The invention relates to an input arrangement for photo typesetting machines using a typewriter keyboard with character keys and coupled thereto Contacts which, when actuated, emit a signal to set a character, as well as accent keys and with this coupled contact for setting diacritical marks.

A limitation of the known keyboards can be seen when entering diacritical marks and symbols and special characters (e.g. dollar signs). These characters are often required in greater numbers than they are in known basic keyboards are available. - When entering diacritical marks, it is therefore also known enter a pre-command, a letter and a two-digit number. This entry is cumbersome, reduces the setting speed and is difficult to read in plain text.

When entering diacritical marks, it is also state-of-the-art, first the accent and then the 6s Key in the basic letters and, accordingly, one behind the other the two character components of the Matrix to expose the film. The diacritical mark is thus composed by the exposure In this way, however, it is not possible to expose symbols and special characters whose components are not mutually exclusive can be separated without further ado. In addition, the typographical quality is impaired even with separable characters

The present invention is based on the object of expanding the input options with a keyboard with regard to the input of diacritical marks. Such commands and If possible, allow characters to be entered without interrupting the normal typing rhythm and without additional considerations. The greatest possible font quality should be achieved.

This object is achieved for an input arrangement of the type mentioned at the outset by the invention specified in claim 1

By storing the individual code words of a diacritical mark and by putting them together These "code words to a new code word can be further processed in the same way as the normal characters. The input of an accent character is done like a typewriter with flying accents, in which the accent key and then the corresponding character key is pressed. The accent mark or diacritical mark is the same how a simple character as a whole is contained and is contained in the font matrix or on a slide negative transferred to the recording medium with a single exposure. The photographed figure can therefore meet the highest typographical requirements.

An embodiment of the input device with the specified means for setting diacriticals Character is expediently designed in such a way that the output lines of the input register and the accent mark register are connected to the matrix via a gate circuit are connected and that the gate circuit can be controlled by a further bistable multivibrator, which with the for the accented bits of the accent mark register are connected by pressing an accent key, a code word is entered in the accent mark register, whereby the associated flip-flop is set. The gate circuit is opened by the signal coming from the flip-flop, and the code word gets out the accent character register and the subsequently formed code word from the character register into the matrix, the creates the new code word

A bit of the input register, like a bit of the accent mark register, is advantageously connected to a contact coupled to a cap key. - When creating the composite code word for a diacritical mark or a special character or symbol, the content of these bits is taken into account. Overall, you can therefore choose from a number of Z characters, Z = G (1 + n) + V (1 + n), where G is the number of types with common characters, K is the number of types with capital characters and η is the number of accents on the keyboard means. For example, if n = 6 and G = K = 43, there are a total of Z = 602 different possibilities.

The connection between the accent mark register and the assigned contacts the same encoder as between the input register and the contacts of the Character keys inserted

The invention is explained below with reference to a drawing described with three figures. Show it:

F i g. 1 is a signal flow diagram of a photosetting machine with their input arrangement,

F i g. 2 the keyboard of the input order and Fig. 3 is a block diagram of the input arrangement.

As can be seen from FIG. 1, the signals output by a keyboard I are sent to a control unit 2 fed in Two-way connections are between the control unit 2 and a line memory with line registers for the thickness values 4 and between the control unit and a computer 31 The control unit also acts on the drive of the mirror carriage 6 and on the triggering of a flashlight on the Character carrier, a character drum 7, a. There is also a signal flow connection between the control unit 2 and the feed 3 of the recording medium 8 in order to transport it line by line, for example. A device for scanning the thickness values is in operative connection with the computer, which provides this information processed and to a line residual value display 9 and via the control unit to the line register forwards

The code words for the Characters and the spaces in the line memory 4. The sentence instructions are processed in the computer 31 and in the control unit for effecting the desired functions ^ stores according to the stored line length, the remaining line value display 9 is acted upon depending on the code words For the thickness values assigned to the characters, the mirror carriage 6 is transported Control device, a flashlight is triggered on the drum 7 every time the character to be set on the rotating drum 7 with respect to Position of the mirror carriage 6 assumes such a position that the characters in the desired distance is exposed to the preceding characters on the recording medium 8.

The characters and instructions keyed into the control unit with the basic keyboard are marked with a Control printer 10 advertised.

In Fig. 2 shows the keyboard 1 of the input order. The arrangement of this keyboard corresponds to a Typewriter-like keyboard Of the keyboard keys, the accented keys 16 to 18 and the capital keys are 19 specially marked - As can be seen from the labeling of the keys according to FIG. 2 can be seen without further ado, are the keys below the top row of the basic keyboard with the exception of some for special functions reserved keys for the characters. They are referred to below as character keys 24

in Fig. 3 are all the character keys 24 and the Accent keys 16 to 18 each drawn together.

Contacts, which are coupled with the keys 16 to 18 and 24, stand with an encoder 25 for a binary code with 6 bits in connection. The encoder is output to an input register 26 and to an accent mark register 27 connected. The input register accordingly has 6 bits and a 7th bit to which the with the Uppercase key coupled contact is connected. The accent mark register comprises according to the three different Accent keys three bits and a 4th bit for the uppercase key.

The part of the input array used to input diacriticals In addition to the accent mark register 27, characters include a gate circuit 37 which has a bistable Flip-flop 38 is controlled by the output of the accent mark register. The gate circuit 37 is in the The signals from the accent keys 16 to 18 are fed via the encoder 25 into the matrix 39, a diode matrix. The gate circuit between the output of the input register 26 and the matrix 39 is in the same way switched on Code words which are fed into the line memory 4 appear at the outputs of the matrix and those with the code words of a thickness memory, e.g. B. the character drum are compared.

To enter a diacritical mark, the The accent is keyed in with one of the accent keys 16 to 18 and then the basic character with one of the character keys 24. The code word for the accent formed by means of the encoder 25 runs into the accent character register 27 a, which sets the bistable multivibrator 38 in the appropriate position. As a result, the gate circuit 37 is opened The basic character, which is also encrypted as a code word, is stored with the input register 26 and transferred to the matrix 39 via the open gate circuit.

In the same way, the code word from the accent mark register 27 arrives in the matrix. In the code word From the accent mark register it is taken into account whether the uppercase key 19 is struck in connection with an accent key and thus which of the two possible accents is desired when one of the buttons 16 to 18 is pressed will. - The two code words for the accent and for the basic character are in the assigner combined into a code word which is stored in the line memory for subsequent exposure of the diacritical Character is entered.

While the code words at the output of the input register 26 manage with 7 bits, those of the Matrix 39 formed code words 8 bits.

For this purpose 3 sheets of drawings

Claims (3)

Patent claims: L Input arrangement for photo-typesetting machines using a typewriter keyboard with pointer keys and contacts coupled with them, which, when actuated, emit a signal to set a character, as well as accent keys and Contacts coupled with this for setting diacritical marks, as indicated by, that with the character keys (24) coupled contacts with an input register (26) and with the accent keys (16 to 18) coupled contacts with an accent sign register (27) are upd that a matrix (3Q) is provided for linking the code words stored in the input register (26) and in the accent register (27) to form a code word which is used for code comparison with the code of a diacritical mark and suitable for input into a line memory 2. Input arrangement according to claim 1, characterized in that the output lines of the input register (26) and the accent mark register (27) are connected via a gate circuit (37) to the matrix (39) and that the gate circuit through another bistable flip-flop (38) can be controlled, which with the bits provided for the accents of the Accent sign register (27) is connected 3. Input arrangement according to claim 1 or 2, characterized in that one bit of the input register (26) is connected to a contact coupled to a Versaltaste (19) • 4. Input arrangement according to one of the preceding claims, characterized in that in the Connection between the accent mark register (27) and the contacts of the accent key (16 to 18) the same encoder (25) as between the input register (26) and the contacts of the character keys (24) is inserted 40