DE8425953U1 - Device for displaying, in particular, alphanumeric or foreign characters - Google Patents

Description

§ ~ WRITING AID

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'■' Learning and practicing e.g. alphanumeric or foreign language

; Character is particularly difficult in self-study because in the

\ Textbooks the scriptural elements in their completed form

tjr are shown. Useful and helpful for the beginner and the

f it is for the practitioner to understand the origin of each scriptural element

to be able to follow; this is especially true for the complicated foreign ones Characters too.

. '■ ·' Solution:

t, The object is achieved according to the invention by a device which the

entire creation of a (e.g. selectable via a keyboard) ; Reproduces characters on a screen, for example. Preferably

this representation happens in a sequence of arbitrarily small steps, possibly adjustable speed so that it can be adapted to the learning progress.

Fig. 1 shows the principle in a preferred embodiment: In a preferably flat table or desk housing (1), a screen (2), for example in the form of a display made of liquid crystal (LCD) or light emitting diode (LED) elements, is preferably arranged as a dot matrix and a keyboard (3). Their individual keys (4) are expediently marked with the written elements (5) to be displayed. After pressing a key (4) with the text element (5) to be displayed, a starting point (11) appears on the screen (2), as shown in more detail in FIG to a line or curve (12) until the selected character (5) or a coherent part (13, 14) thereof is shown.

For characters that are not usually written in one go become the individual connected parts of the characters (13, 14) are shown in the appropriate order - as in handwriting. It can be for the learner or the practitioner It is advisable to pay attention to Jas "dropping" at the interruption points close; either optically (e.g. by flashing the last

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resulting image point (15) and / or the first new image point (16) after placement) and / or acoustically (e.g. short Beep). Likewise, the end of the display can preferably be indicated acoustically (acknowledgment). Through a suitable Circuit design (additional memory) can of course also be represented by sequences of letters, i.e. words.

The learner or practitioner now has both the possibility of creating of the writing element (5) on the screen (2) to be observed, or on a transparent one placed over the screen (2) Paper to trace the resulting curve with a writing instrument.

In an advantageous embodiment ( Fig. 3) of the device there is a paper supply (21) on one side of the housing (inside or outside) (e.g. as a roll as is common in printing calculators) and on the opposite side of the housing there is a toothed guide groove (22 ), so that a paper strip (23) is guided over the surface of the screen (2) without it slipping appreciably, can be transported further as required and finally easily separated.

Fig. 4 shows a basic block diagram of the simplest possible embodiment of the learning-to-write aid:

In the example chosen, the screen (3o) consists of a suitable one Number of light-emitting diodes (31) which are connected to the outputs (33) of a semiconductor memory (3A) via driver stages (32). Whose Address inputs (35) are partly via a keyboard encoder (37) with the input keyboard (38), the other part of the address inputs (36) connected to the outputs of a counter (39). The counter (39) counts

(K)

the impulses coming from a clock generator. Not shown in detail: the voltage supply of the circuit, the frequency adjustment of the clock generator (4o), the start, stop and reset devices.

Function: By pressing a key on the keyboard (38), the Keyboard encoder (37) an address range, determined by the logical states at the address inputs (35), the memory (34) selected. The first reset (to zero) by pressing a key Counter (39) is now released and increases its counter reading

every clock pulse (e.g. with 2 Hz) of the clock generator (4o). The exits of the counter (39) now give via the address inputs (36) the address of the one in the memory (34) to be read out - i.e. on the "Screen" (3o) to be displayed - bits (= pixels). Under the first Address of an address range is expediently not yet any information. Starting with the second address can then point for Point the writing element can be represented up to its completeness. The above-mentioned blinking can be done by alternately omitting of the relevant bit can be reached in successive addresses.

With the described device - depending on the programming, Memory depth and screen resolution - not just letters, numbers or characters, of course, but also contours, figures, graphics, etc. represent.

Claims (6)

• ■ · Claims e l / device (1) for displaying won in particular alphanumeric or foreign characters ^ characterized by that the device (1) has a screen (2), preferably consisting of a large number connected as a dot matrix of liquid crystal or light emitting diode elements, which allows the creation of a preferably via a keyboard (3) represents predeterminable writing element (5). 2. Apparatus according to claim 1, characterized in that the device (1) is preferably designed as a flat table or desk housing. 3. Apparatus according to claim 1 or 2, characterized in that the screen (2) is flush with one side of the housing. 4. Device according to one) dr-r preceding claims, characterized in that that in or on the device (1) a paper (foil) supply (21), preferably with a guide and separating device (22) is provided. 5. Device according to one of the preceding claims, characterized in that Memory (34), preferably semiconductor indicates that the ^^^^^ ,, ^
Memory that is pluggable. 6. Device according to one of the preceding claims, characterized in that that the keyboard (3) has a display window for holding symbol carriers.