EP1810267A1

EP1810267A1 - Display and control device therefor

Info

Publication number: EP1810267A1
Application number: EP05815183A
Authority: EP
Inventors: Brieuc Rolland Du Roscoat
Original assignee: Rolland du Roscoat Brieuc
Current assignee: Rolland du Roscoat Brieuc
Priority date: 2004-10-28
Filing date: 2005-10-28
Publication date: 2007-07-25
Also published as: US20080231549A1; FR2877479A1; FR2877479B1; WO2006045962A1

Abstract

The display (10) comprising a number of basic display elements arranged according to a plotting representing an alphanumeric character, and it is linked to transcoding circuits (2, 3) that, after receiving data representing a digit, furnish a specific set of individual commands for various basic display elements, whereby this furnished set excites a certain number of basic elements according to a pattern specific to the digit.

Description

Display and associated control device

The present invention relates to a display for displaying a number and a device for controlling such a display.

Conventionally, to display the value of a digit, there are two types of displays, namely the seven-segment displays, in the form of two overlapping squares with a common side, possibly in addition to the oblique segments, and the displays in a matrix of thirty-five points, in seven lines of five points, whose fine granularity makes it possible to define more elaborate curves and thus also to display letters.

The present invention aims to propose another type of display.

For this purpose, the invention firstly relates to a display for a value of a range of a first plurality of possible values of a digit, comprising a second plurality of mutually independent display base elements for displaying any of said command values of a said first plurality of respective positional base element groups together forming a value-specific pattern, characterized in that said respective positions of the entire second plurality are arranged in a basic shape pattern substantially representing an alphanumeric character.

Thus, the display comprises a display consisting of the various basic elements, that is to say points or blocks of points, the assembly thus having the predetermined shape of an alphanumeric character, this form being defined by the fact that the various positions, even if they are mutually disjointed, they have a certain continuity of dotted lines suggesting a curve whose plot represents the alphanumeric character considered, which is therefore immutable. This plot therefore corresponds to a certain correlation between the positions. But these positions also have other correlations relative position because they allow to display successively the various values of the figure, that is to say that in the second plurality of positions, we can define a sufficient number of different groups of basic elements, thus making it possible to display, in the form of specific patterns formed by certain basic elements controlled, the first plurality of values of the digit.

Note that, since the invention is not limited to a particular calculation base, a displayed value can correspond to a number expressed in a given base as well as to a number, that is to say to at least two digits, expressed in a lower base than the other.

One of the base element positions may be located in the base pattern at a level specific to the basic element under consideration.

The basic element considered can for example indicate the odd values, to better discern the difference between two patterns of fairly similar shapes. This basic element considered may in particular occupy an extreme or mid-level level in the basic pattern, and, moreover, it may have a different display state with respect to display states of the other elements of the base element. base, such as a specific color, intensity, blink, or blink rate. The basic pattern may in particular substantially represent a letter, for example one of the letters of the group consisting of the letters d, E, I, L, O, V.

At least one of the basic elements may, however, have an elongate shape and at least one of the basic elements may have a substantially circular shape, that is to say a length / width ratio of not more than 2.

Preferably, the basic pattern is two-dimensional, particularly preferably for numbers exceeding "2", which offers a wide variety of specific two-dimensional patterns and thus makes it possible to better differentiate them.

The basic pattern is preferably visible at rest.

The invention also relates to a set of displays comprising several displays according to the invention, for displaying a number.

The assembly can thus comprise at least two displays arranged for each displaying a value from respectively at least two values and at least eleven values.

It is thus possible to display a number of hours or minutes, possibly by time multiplexing between these two numbers, the zero digit then being indicated by default of display, otherwise the two displays are arranged for each displaying a value from respectively three values and twelve values.

The set of displays may comprise four letter displays, as indicated above, with basic patterns respectively representing the letters L, 0, V, E. In such a case, to display the time or its subdivisions, the four displays advantageously have second pluralities of respectively 2, 9, 5 and 9 basic display elements, for the hour and minutes, with possible time division multiplexing for the seconds and also for the date.

The invention also relates to a device for controlling a display device according to the invention, characterized in that it comprises transcoding means arranged to receive, after receiving data representing said figure, a corresponding specific set of individual commands. for the various basic display elements, the supplied game belonging to a set of a said first plurality of games available for respectively the first plurality of possible values of the digit.

The transcoding means may comprise a transcoding table in the read-only memory, or a binary counter comprising a third plurality of bit stages each comprising a serial input, counting, and an output connecting them in series, a first said stage being provided for receiving, by the counting series input, a continuous stream of pulses of determined period, the plurality of outputs being further connected to inputs of a transcoding combinational logic circuit having outputs for providing feedback commands arranged to control a said third plurality of priority storage control parallel inputs, respectively in the stages, of respective bits representing a transcoded number.

The counter, which progresses according to the classic sequence of increasing binary values if it were autonomous, progresses here by jumps. Indeed, being in a state corresponding to a value N directly supplying the desired commands for a current number to be displayed, generally binary, for the basic elements of display, the counter is incremented by one unit by a counting pulse. The value N + l appearing at the output then controls the combinatorial logic circuit which, in response, in parallel forces floors of comp ^'tor to do instantly switch to a predetermined state N + k which corresponds to a new set of commands , corresponding to the pattern of the next digit to be displayed. The new number stored in the counter can thus be chosen independently of the preceding one, the increment k, which does not appear directly and is only mentioned here for understanding, which can be positive or negative.

The transcoding means are advantageously arranged so that any two adjacent games, in an ordered sequence of eight first said sets of individual commands, respectively for the values 1 to 8, each have at least two different commands relative to the neighboring game.

In terms of information theory, the difference between two such sets of coded information is called Hamming distance, that is, the minimum number of bits that should change state if one wanted to pass from one specific pattern to another. The specific motives are all the more discernible between them since the distance of Hamming is high. In one embodiment, the transcoding means are arranged so that, in some of the control sets, the display commands of the respective values correspond to positions of basic elements arranged according to a said specific pattern substantially representing a conventional form. writing of the considered value. The figure, for example, and may, if the basic pattern allows, be displayed by a number of basic elements of relative position display evoking the shape of 7. In addition to or in ^'place, it can be expected that the positions considered are seven in number.

In order to display a digit in decimal base, with a display of the default value zero, the transcoding means can be arranged to provide, optionally, one of a said first plurality of nine sets of individual commands, for values respectively. in a said range from 1 to 9, each set of commands having a number of commands equal to the value to be displayed. The transcoding means are advantageously arranged to control a set of control circuits of the display arranged to invert excitation polarities of a said second plurality of dipoles constituting the basic display elements and each offering a choice of two colors possible according to the direction of the polarity, and further arranged to inhibit on command the dipoles.

The invention further relates to a set of control devices according to the invention, comprising a set of said transcoding means for respectively the displays of a set of displays according to the invention.

In order for two said figures of the same value to be represented by two substantially similar patterns of two of the displays, the transcoding means are advantageously arranged so that the two respective sets of individual commands are mutually harmonized. so that said two respective groups are formed of basic elements occupying positions defining two patterns of substantially identical shapes.

First and second transcoding means may be mutually coupled so that the first transcoding means controls an incrementation of the second transcoding means when the first transcoding means reaches a value representing a numbering base. In this case, the first transcoding means may be arranged to provide, optionally, one of a said first plurality of at least nine sets of individual commands, for values in a range from 1 to 9 respectively, each set of commands having a number of commands equal to the value to be displayed.

In the case of a mechanical display, it can be provided a stepper motor arranged for, under the control of the transcoding means, to drive a mobile display track on which are distributed said basic elements patterns of display, associated with a pattern pointer.

Finally, the invention relates to a display system comprising a display or a set of displays according to the invention, characterized in that it comprises a control room containing control management means arranged to control, on the occurrence of predetermined type events, display control means provided for controlling a said display comprising said basic display elements.

Events are for example changes, of current minute provided by a time base, or any another event detected by an appropriate sensor, for example the arrival of image data to be displayed.

Indeed, according to an interesting embodiment, each display base element consists of a block of pixels and the display control means are arranged to display an image specific to each block of pixels.

The control management means are for example arranged to select an image in a library and to address a specific block of pixels via the display control means.

The library is preferably designed to provide moving image data and the control management means are arranged to transmit to the display control means data packets containing a sequence of said images.

If the moving image data is associated, in the library, with service data specifying one of several possible image types, the control management means can be arranged to virtually split the display into several regions and, for each region , select images of a type specific to the considered region.

To animate the display, or to better show an image, the management means may be arranged to, periodically, calculate expanded image data representing an image in a format capable of being displayed on a plurality of said blocks of pixels, and for transmitting expanded image data to the blocks of pixels considered. The library is advantageously connected to a data transmission network, at the input and / or at the output, for receiving various images of terminals such as, for example, cell phones, or television channels, and to offer them for display.

The display control means and the display, and possibly the control room, can be provided integrated in a portable terminal, for example a portable telephone or a watch, in which the desired images have been stored in the library, or else are received by a radio link.

The invention will be better understood with the aid of the following description of an embodiment of a set of such control devices and associated displays according to the invention, and of a data transmission system for managing such an assembly, with reference to the accompanying drawing, in which: Figure 1, formed of Figures IA and IB, is a block diagram showing an electronic control assembly of a watch display, Figure IB showing a detail of a control circuit of the display, FIG. 2 illustrates a particular example of a set of three watch displays and a variant of the latter, making it possible to display, with an unrepresented head display, the time and the minutes on a basic pattern representing the English word LOVE, FIG. 3 represents a mechanical variant of the display according to the invention, FIG. 4, formed of FIGS. 4A, 4B and AC _1, is a functional block diagram representing a Systèm e of data transmission comprising a display management system according to the invention, comprising a mosaic of monitors, and FIGS. 5A and 5B, constituting FIG. 5, respectively represent a variant of the system of FIGS. 4B and 4C, for display in a portable telephone set. FIG. 1 represents an oscillator 1 controlling a transcoding circuit constituted by a binary counter 2 associated with a combinatorial logic circuit 3 itself controlling a display 10.

The counter 2 comprises a plurality of a series of hereby nine identical binary stages mounted in cascade, not all shown, an upstream stage being referenced 21 and a downstream stage being referenced 29. The first stage 21 comprises a serial input, or upstream, counter 2IC and a corresponding downstream output 2IS, and, in addition, a side input 2ID for receiving a binary data item to be stored under the control of a clock signal applied to an input of memory control 21M. The lateral input 2ID has priority over the counting input 2IC, that is to say that the arrival of an active edge transition on the storage control input 21M causes the storage of the bit of the side entrance 21D. The bit previously contained in the stage 21, coming from an upstream series pulse counting or from a previous lateral access memory, is thus erased if it differs from the new memorized bit.

The counting input 21C of the first stage 21 receives a continuous stream of pulses H of determined period coming from the oscillator 1 and thus changes state with each active edge of the clock signal H, that is to say say, conventionally operates as a frequency divider by two, the output 21S controlling a counting input 21C of a next stage 22. The following cascading stages perform even each a frequency division by two. The plurality of the nine corresponding outputs, like the output 21S, each control, in the display 10, a display element specific to each. The plurality of above outputs, which will be designated globally by the reference (21) of the first, in parentheses, is furthermore connected to inputs of the combinational logic circuit 3, which performs a transcoding of a binary value. represented by the respective nine bits of the outputs (21) of the counter 2, to another predetermined binary value. The combinational logic circuit 3 may consist of a circuit of the FPLA type (or similar), containing a number of AND, OR, OR exclusive gates, memories and possibly counters. These circuits can be connected through a network established in one or. several matrices of rows and columns initially mutually isolated, that is to say whose crossing points are initially open but include a read-only memory in the form of a local fuse or a micro-capacitor controlling a micro¬ switch. Storage commands addressed to the desired crossing points then make it possible to establish all the desired paths to connect as desired the various logic circuits, which can thus achieve a desired function, that is to say here a transcoding. Alternatively, there may be provided a conventional ROM transcode table containing the desired transcoding values.

The combinational logic circuit 3 has nine outputs which are connected to the storage inputs respective stages, such as the 2IM memory input. This therefore constitutes a feedback loopback which replaces, in the counter 2, the current binary value with the corresponding transcoded value. The storage of the transcoded value is controlled in parallel on the storage input 2IM and on the other eight inputs homologous by an active clock edge which is out of phase with that of the clock signal H. In practice here, the input 2IC counting is provided for rising active edges and 21M storing input for downward active edges. As a result, the clock signal H is applied to the counting input 21C of the first stage 21 as well as to the nine memory inputs 21M and counterparts. Since the display 10 is here directly controlled by the plurality of the outputs (21), the clock signal H has a relatively low form factor, such that its second active edge, going down for storage, closely follows the first active edge. , amount for counting advance, so that the display 10 does not have a visible transient state.

As explained below, and with reference to FIG. 1B, in this example each basic display element is a dipole constituted by two LED diodes D1, D2 of different colors encapsulated in common and mutually connected head to tail with possibly in common a series current limiting resistor, i.e. the direction of the excitation current determines which LED turns on. Each control link of such an LED coming, in this case, directly from the combinational logic circuit 3, therefore comprises two wires, namely a conventional binary control wire for inhibition / excitation E of the LED and a transmission wire. a K order of choice of color, serving as a switching command to invert the direction of the current at will. The excitation signal E is applied in parallel to two respective inputs of two logic gates ^' identical to two inputs, that is to say logical gates OR as shown, possibly inverting, or, alternatively, logic gates AND , possibly inverting. In the present case, an excitation signal E at 1 (alternatively 0) passes primarily at the output of the two gates 31, 32, independently of the state of the other input. The other two inputs of the two gates 31, 32 respectively receive the K color choice signal and the same signal inverted by an inverting logic gate 30. The signal E being at 0 to unlock, a signal K at 0 leads to a 0 at the output of the gate 31 and a 1 at the output of the gate 32, which thus supplies the LED diode dipole and causes, according to the drawing, the LED D2, while a state 1 of the signal K reverses the direction of the polarization of the dipole and then causes the diode Dl. The doors 30 to 32 can be integrated in the combinational logic circuit 3, which is therefore, as indicated above, provided for directly controlling the display 10, without passing through the counter 2, as a variant of FIG.

It may be provided to cascade two such first and second transcoding arrangements, mutually coupled, so that the first transcoding edit controls incrementing the second transcoding edit when the first transcoding edit reaches a value representing a dial base. In such a case, for example in a decimal display, when the counter 2 of the first assembly is in the state corresponding to the display of the unit "9", the reception of a pulse Clock H advances the counter 2 as explained above, and the new corresponding state is decoded to provide a hold signal which is equivalent to a clock pulse H for the counter 2 of the second mount, located downstream. The combinational logic circuit 3 can serve as a decoder of the value corresponding to the base minus one unit, here "9", to advance the downstream counter 2 when the upstream counter 2 leaves the state "9", thus indicating that a clock pulse H has just been received. The first transcoding assembly can thus be arranged to provide, optionally, one of a first plurality of at least nine or even ten sets of individual commands, for values in a range from 1 to 9, respectively. even from 0 to 9. Each set of commands may comprise, for example, a number of commands equal to the value to be displayed.

FIG. 2 is a table of eight superimposed horizontal blocks, each formed of five lines numbered in the margins of 1 to 5 for the first block, each block representing four such displays 100, 300, 500, 700 but each of a particular type, that is, each having a particular base pattern, respectively evoking the letters O, V, E and again E, the fourth display 700 being a variant of the third display 500. The above displays are actually represented here by the base pattern 100M, 300M, 500M, 700M they present. The four displays above respectively display digits ranging from 1 to 9, 5, 9, 9, that is to say, hour units, tens of minutes and units of minutes. The eight blocks of lines respectively illustrate representations of numbers ranging from 1 to 8. In each block, the displays 100, 300, 500 are optionally represented a second time, with the same basic pattern, under the respective references 200, 400, 600, to illustrate a variant of the LED pattern lit, specific to the number considered. . The reference 700 designates a variant of the third display 500, 600, with regard to the relative positions of the LEDs.

Stars * indicate the various positions of the basic display elements at rest, and X crosses indicate positions of display display elements excited, the set constituting the basic pattern.

In this example, these are light-emitting diodes, or LEDs, which could be replaced by LCD display areas. For the latter case, it will be recalled that the difference in appearance of the zones is obtained by a change in the optical transmission coefficient, that is to say that we can say that the zones are excited but not that they are illuminated, the necessary light source being external and arranged close to it. Note that it can also be expected that the corresponding positions of the LEDs are represented on a conventional computer screen or any other display panel, possibly also suitable for displays of a type outside the scope of the present invention.

In the following description, for the sake of convenience, the various LEDs are identified by a reference comprising a number of hundred corresponding to that of the display 100, 300 or 500 "basic" for the type considered, a figure of tens corresponding to the row row 1 to 5, starting from the top of the block as shown on the pattern 100M for the number 1, of the line on which is the LED, and a number of units, ranging from 1 to 3 or 4 or 5, indicating the position of the LED in the line from the left of the basic pattern considered, as shown. These references remain the same in the eight blocks of lines represented. Note, however, that it may be provided to increase the width and / or the height of the basic patterns by respectively inserting columns or empty lines, in which case the position references of some LEDs would then have to be incremented correspondingly, as regards respectively the unit and / or the ten.

The positions of the LEDs of the display 100, 200 comprise a central point in the overall representation of the letter O. By going down line by line, there is thus a succession of 2, 2, 1, 2, 2 LEDs of positions of reference 112, 114 (or 113 as a variant), 121, 124, 132, 141, 144, 152, 153.

The positions of the LEDs of the display 300, 400 representing globally the letter V present, going down line by line, a succession of 2, 2, 0, 1, 0 LEDs of reference positions 311, 315, 322, 324, 343 (333 alternatively). As a variant, a V of maximum size can be defined by reference positions 311, 315, 332, 334, 353. The positions of the LEDs of the display 500, 600 representing globally the letter E present, going down line by line, a succession of 3, 1, 1, 1, 3 LEDs of reference positions 511, 512, 513, 521, 532, 541, 551, 552, 553. The positions of the LEDs of the display 700 generally representing the letter E present downstream line by line, a succession of 2, 2, 1, 2, 2 LEDs of reference positions 711, 713, 721, 723, 732, 741, 743, 751, 753. The display 700 therefore differs from the display 500, 600 by the fact that LEDs 512 and 552 of the middle two horizontal bars, high and low, respectively E are replaced by ^LED 723 and 743 which constitute a crimp form closing the free ends of these horizontal bars. The display 700 thus has a superposition of two rectangles formed respectively by the LEDs of the first two and the last two lines, separated by the LED at mid-height 732 and in central column position, that is to say at This form is relatively similar to that of the display 100, 200, which has a basic pattern comprising, at the top, a rectangular trapezium, or schematic variant (113), and at the bottom, the same trapezium symmetrical but returned, separated by the mid-level LED 132 occupying a quasi-central column position.

The reference positions 132, 532, 732 are at mid-height of the respective basic patterns, while the reference position 343 is at the low end of the V forming the basic pattern, with possibility of alignment in line with the reference positions above (variant 333) or the possibility of going down to the low end position 353). Each of the above reference positions is the only one on the line considered in the basic pattern under consideration and may be indicated by a different color LED from the other of the basic pattern, for example a red LED among green LEDs. or orange, or by a LED with specific ignition control, for example to intensity more or less strong permanently or flashing at a particular frequency.

As indicated above, it is here provided that the LEDs are of two-color type, that is to say each constituted two diodes of different colors mutually assembled head to tail to light one or both colors. One can for example initially choose to use two-color LEDs from the group of red, green and orange.

In this way, one can for example choose to display the even numbers in a certain color, for example green, and the odd numbers in another color, for example red. To display the number "1" on each of the four displays, the respective LEDs 132, 343, 532, 732 are lit. Of course, each display is controlled independently of the other three and can therefore display any number compared to the figures of others. The present display of the same number on each of the four displays is only for the purpose of facilitating the presentation.

Since the number "0" can be indicated by resting all the basic elements of the display at rest, its illustration in Figure 2 is superfluous. However, the digit "0" may be displayed by a reference position located on a line distant from that displaying the number "1", or alternatively by a change of color or variation such as a flashing, while possibly maintaining the position of reference number "1" or even in the low position, in line of rank 5.

To display the number "2", two LEDs of the same line are lit, which offers four possibilities for the display 100, 200, with here for example, in line 2, the LEDs 121, 124, or else 112, 114 or still 141, 144, or alternatively (200) shown, 152 and 153. In the display 300, 400, the LEDs represented 321 and 323, or else 311 and 315 of the variant, are lit. In the display 500, 600, any two LEDs of a horizontal bar are lit, as for example here in reference position 551, 553. The display 700 offers four possibilities, for example 751, 753. To display the number "3 ", three LEDs are lit in each display to form substantially V, respectively the pair 112, 114 (or 121, 124 of the variant) with 132 (or 152 or 153), as well as the pair 311, 314 (or 322, 324 of the variant) with 343 (or 333 or 353, not shown), as well as the pair 511, 513 with 541 (or 532 of the variant or 551 or 552), as well as the pair 711, 713 (or 721). , 723) with 732. Thus, the diodes 132, 343, 541 and 732 can be lit which are each at a specific level in the basic pattern under consideration, ie each is unique on its line in its basic motive.

To display the number "4", four LEDs are lit in each display to form a symmetrical rectangle or trapezoid, respectively two of the pairs 121, 124, or 112, 114 or 141, 144 or 152, 153, as well as the pairs 311, 314 and 322, 324, as well as the pairs 511, 513 and 551, 553, as well as two of the pairs 711, 713 or 721, 723 or 741, 743 or 751, 753.

To display the number "5", five LEDs are lit in each display to form a V, respectively the pair 121, 124 (or 112, 114) with 152 (or 153 or 131), as well as the pair 322, 324 ( or 322, 324) with 343 (or 333 or 353), as well as the pair 511, 513 with 541 (or 532), as well as the pair 721, 723 (or 711 and 713) with 732. To display the number "6", six LEDs are lit in each display 100, 500, 700 in a pattern evoking the shape of the number "6", before respectively two LEDs forming a tail above four other LED trapezoidal or rectangle or similar shape, evoking a closed loop of the digit "6". For this purpose the reference positions 112 and 121 (or 124 and 132) ^' with 141, 144, 152, 153, as well as 512, 521 with 532, 541, 551, 553 and 713, 721 (or 723) are concerned. , 732) with 741, 743, 751, 753.

To display the number "7", seven LEDs are lit in each display 100, 500, 700 in a pattern somewhat reminiscent of the shape of the number "7". For this purpose, the reference positions 112, 114, 121, 124, 132, 141, 152, as well as 511, 512, 513, 521, 532, 541, 551 and 711, 713, 721, 723, are concerned. 732, 741, 751. The two drawn variants 121, 124, 132, 141 as well as 511, 513, 532, 551 illustrate a display of the same type but only four LEDs.

To display the number "8", eight LEDs are lit in the displays 100, 500, 700, that is to say all except that each time single in line 3, that is to say the reference positions 132, 532, 732, whose additional ignition allows for example to display the number "9", it was therefore deemed unnecessary to illustrate in Figure 2.

It will be appreciated that this example illustrates only particular cases with respect to the basic patterns as well as the various specific pattern choices for the respective numbers. In particular, the equality presented, in most of the above examples, between the number of reference positions and the number to be represented is based on a principle of representation coding, which is certainly interesting, since there is then correlation between the specific pattern that an observer must recognize and the number of basic elements excited, but which is not mandatory. In other words, the representation of each digit is performed here, on the one hand, in uncoded form, by excitation of a number of LEDs equal to the number considered, therefore without the need for an initiation for the user, and, on the other hand, in the form of a position encoding, each specific pattern of which facilitates a global reading, that is to say immediate, without the need to count the LEDs.

However, in other examples, the number of reference positions in each basic pattern could be smaller than the number to be represented since its representation is encoded. Indeed, in the present decimal example, four basic elements of display would be enough for coding, but the basic pattern could represent only a limited number of letters and further the various codings would be mutually undetectable, it is to say with a Hamming distance of 1.

By way of example, for a display of numbers based on "12", and no longer decimal, the display 100 makes it possible to display the number "10" (ten units) by turning on the reference position at the top right 114, and locally isolating such a state on by holding in the off state the two reference positions which are adjacent thereto 112 and below 124, the other reference positions being arbitrary. The number "11" (eleven) can likewise be displayed by turning on the reference position of the upper left corner 112, according to the same principle, the two reference positions which are close to it 114 and 121 being kept off and the other positions any reference. The reference position corners 152 and 153 could also be used for coding according to this principle. In this case, the examination of the specific patterns of the displays 100 and 700 shows that the digit codes of "1" to "4" are totally disjoint, ie no LED position lit. is common to two neighboring motifs. The codes for the number "5" and the number "6" have only 2 common positions with the respective preceding code for the number "4" or the number "5". The code for the digit "7" has 4 common positions with the code for the digit "6", and the code for the digit "8" has 6 common positions with the code for the digit "7". The first NI codes (N = 0 to 5) of the display 300 are all disjoint, except the code for the number 4, which has 2 common positions with the code for the digit "3". The various specific patterns therefore have excellent visual separation power.

In addition, the above example relates to a decimal count, which should not be a limit for the invention, since additional specific patterns can be provided. Likewise, the basic display elements may be chosen somewhat elongated to better illustrate the basic pattern and / or some of the number-specific patterns. In particular, it is possible to form a basic pattern with only two elongated basic display elements, each forming a branch of L. The horizontal branch is, for example, excited to display a digit "1", and the branch is excited to display a number "2", the horizontal branch being excited simultaneously or left at rest to, in the latter case, have a third specific pattern, of simultaneous excitation, to display a digit "3", or to display the figures from "0" to "2". We can thus, with the above, display the word LOVE and, in decimal place in this example, the tens and units of hours and minutes.

The type of embodiment discussed above, with two-dimensional basic patterns, can be reduced to linear basic patterns. For example, for each basic pattern described above, the left-most column can be taken as the leading reference of the five line segments constituting the base pattern and, having increased the interline spacing, each segment of line between the reference position of the line in question and the reference position of the line below. The reference column then carrying all the LEDs so arranged can remain a straight line, to form the letter I, or be deformed in any desired curve. It will be noted that the first column of the displays 500, 700, possibly with the second column, illustrates a possible coding for the letter I. It is thus possible, by way of example, to form the letters S, or O, which leads to shapes respectively linear and looped. At least the first NI successive displays (N = 5 or 9 in the examples) of the series of numbers displayed on the basic pattern according to the desired curve therefore do not follow a continuous ordered progression of ignition of an additional LED at each times, but they "jump" since the various patterns of specific are predetermined in a virtually mutually independent way. The various specific patterns can indeed be chosen almost randomly, since they are all different. The particular case, exposed in details, of choice of a number of lit LEDs equal to the digit to be represented, still leaves enough degrees of freedom in specific reasons for these are very distinctly disjoint, as indicated by the Hamming distances that are always at least 2, and often well above 2.

For example, to display a current instant, it is possible in particular to provide a set of displays substantially of the type described above, presenting the sequence of letters 0, d, i, 1, E. The displays for the letters "O" "and" E "have been described in detail. The display for the letter "0" is for example commanded to display the day of the week, by a digit from 0 to 6 or from 1 to 7. The display for the letter "E" can be controlled to display the seconds . As explained, the nine LEDs involved can display at least ten different values, and at most 512 different values. It is possible, for example, to provide, at the input of the display 700, a predetermined rhythm oscillating switch for connecting alternatively to the first combinational logic circuit 3 or to the second combinational logic circuit 3 for the tens of seconds, downstream of the first. The display of the tens and the units of the seconds can be alternated, with each time a specific color for each of the two displays or a specific display duration.

The reasons of the intermediate letters "d", "i", "1" make it possible to display four values, namely the tens and the units of the hours by the letter "d", and the tens and the units of the minutes by respectively the letters "i" and "1". The letter "i" substantially corresponds to the vertical bar of the E of the display 700, the intermediate level LED then being aligned in the left column. The letter "1" corresponds to an extrapolation of the "i" above up to nine or ten aligned LEDs. The letter "d" is formed by a vertical bar of display up to 9, just like the letter "1", completed on the left by two or three LEDs substantially aligned vertically to evoke the loop of the "d", allowing the display up to 2 Figure 3 schematically illustrates an alternative mechanism for an electromechanical watch. A stepper motor 981 drives, under the control of transcoding circuits 980, of the type of the circuits 2, 3, a mobile display track 982 on which are distributed said associated display base element patterns 990. to a pattern pointer 983. The display track 982 is here a disk or rotary wheel having peripherally, externally or on the edge of a main face, a circular track carrying a string of various patterns of basic elements of display 990, associated with a display window 983 in a watch case, not drawn. There are four such mechanisms, to display the hours and minutes. Alternatively, the above track is flat and carried by a movable rack reciprocating, engaged with a gear driven by the motor 981, the rack and sliding to present the desired pattern at the location associated with the pointer, c i.e., the display window 983 or an index. In a dual way, it can be the index that moves. FIG. 4, formed from FIGS. 4A, 4B and 4C, represents an example of a display management system according to the invention, a system which, being more complex than the electronic control assembly of a watch display represented on FIG. Figure IA, in particular allows dynamic management.

The system here comprises a data transmission network 760, here the Internet network, accessible as input to data transmission terminals or equipment 761 representing still or moving images, for example computer terminals, television channel transmission stations or television receivers associated with a re-transmitter device, or even mobile telephones as evokes the drawing.

A control unit 780 is connected as input to the Internet network 760 for receiving the images and distributing them to a display 810, here via a data transmission network 770, here local, and a local unit 850 locally managing the display 810, that is to say, translating, at the physical level, logical orders coming from the control room 780.

The display 810 is in fact constituted by a mosaic of television monitors, each referenced generically 801, arranged in four successive stackings of 2, 9, 5 and 9 stages, respectively to represent, by their display state, dozens of hours, units of hours, tens of minutes and units of minutes. For the convenience of this presentation, the monitors 801 can also be individually identified by the hundred "8", associated with a dozen ranging from "1" to "4" for their column, numbered in the order of announcement above of decreasing the weight of the values, and to a unit ranging from "1" to "2", "9", "5" and "9" respectively, starting from the bottom of the stack in question.

Each monitor 801 corresponds, from a management point of view of its excitation, to a pixel, or LED, of the preceding example, but the monitor 801 displays, in the "excited" state, an image and no longer a simple point or pixel as for an LED. As a result, apart from the desired binary information, visible by the fact that it is "on", the monitor 801 makes it possible to transmit additional information, like pictures, a movie or evolving text. The "off" state, opposite the "on" state, may correspond to a lack of image display or to the display of an image having a predetermined characteristic allowing the observers to classify it as representing a state "off", that is to say not to be taken into account for the counting of figures. It may for example be an image representing a predetermined object, that is to say recognizable by contours, or a predetermined color image, regardless of the object shown.

The details of the system are set out below. The control unit 780 is connected as input to the Internet network 760 through a receiver circuit 781 receiving the images transmitted and transmitting them to a library memory 782. It will be noted that the Internet network 760 input and the terminals 761 are only optional because the library 782 may be designed to be loaded from portable computer media, such as cassettes, floppy disks, CD ROMs or the like, or by wire or radio link from a terminal which may be local. The purpose of the Internet network 760 is to open the system to the 761 terminals of the public.

The control unit 780 includes a central unit 791, driven by a time base 790, managing the library 782 under the control of a program memory 792, 792P manager program. The 792P manager program provides clean image feed of each of the monitors 801, that is, selects an image in the library 782 and controls its transfer to a target target monitor 801. Updating each 801 monitor with a new image is done according to a period predetermined or variable, while its excitation / extinction is questioned every minute, by time base signals 790, constituting events "triggers". In timebase 790 or central unit 791, clock circuits according to FIG. 1A, or subroutines of the same function, provide the commands required to display the desired number of hours and minutes. that is to say, to excite the desired number of monitors 801. In the case of transmission of moving images, it is a sequencer 793, in the form of a subroutine or specific hardware sequencer, which ensures, in the background periodic real-time transmission of each new image of the sequence of images. The sequencer 793 has previously received, from the central unit 791 controlled by the manager program 792P, addresses specifying, for example by a start address and an end address, an area 783 of addresses in the library 782 in which is located the sequence of moving image data to be displayed. The sequencer 793 has likewise received a network address from that of the displays 801 which it supplies, ie a network address of the local unit 850, supplemented by a local address in the display 810, provided by a look-up table from the target position (row and column) in the display 810.

The sequencer 793 can thus, under the control of the time base 790, read cyclically, for example with a refresh rate of 50 Hertz, successive positions of the area 783 considered, each representing an image. Thus, starting from the zone start address 783, the sequencer 793 increments, at each reading, a counter serving as read pointer. If the sequence shown is larger than the available memory size in the area 783 considered, it is first written successively only the image data of a beginning section of the sequence, by means of a pointer d The handwriting pointer, which will then synchronize a reading by scrolling behind the write pointer, will thus allow the read image data to be overwritten, in a starting range (widening ) of the area 783, by new image data from the Internet network 760 and representing a next section. In other words, the area 783 is operated in the manner of one _. ring traversed by the writing pointer and the read pointer, out of phase with a certain amount behind it. The connection of the library 782 to the data transmission network 770 takes place through a readout switch circuit 784, that is to say a multiplexer, controlled by the central unit 791 or directly by the sequencer 793. , routing the read image data to an interface circuit 785 with the data transmission network 770. Each image is here transmitted in a data packet further containing the network address of the local unit 850 and an address 9vw logic specifying that of the 801 display that is recipient. The control unit 780 can thus manage several local units 850, with associated displays 801, located mutually at a distance.

The image data thus transmitted are received by a central unit 861, based on time 860, of the local unit 850, which, by means of a transcoding table 862, transforms the logical address 9vw into a physical address. 9xy of the 801 monitor referred to. In this example, the various monitors 801 are connected to the local unit 850, specifically to the network interface circuits 865 of the local unit 850, by a local network 870, here Ethernet type. The network interface circuits 865 thus transmit the image data in an Ethernet format message, in particular with the physical address 9xy of the destination monitor 801. Each monitor 801 is connected to the local network 870 through a network interface circuit 872 providing the level 1 and 2 functions in the OSI classification, that is to say offering the desired physical level of interface and able to process the format of the data.

Each monitor 801 and the associated network interface circuit 872 constitute a monitor unit 909, and the set of monitor units 909 with the home network 870 constitutes the display 810.

In comparison with the physical address of the locally stored monitor 801, the interface circuit 872, serving as a front end, determines whether the message, stored in a buffer 873, is destined for the associated monitor 801 downstream. If not, the message is erased or overwritten by a following, and if so, the image data is retrieved and transmitted to the associated monitor 801, with appropriate formatting if necessary. The monitor 801 here comprises, at the head, a buffer 802 for storing the image data, buffer 802 can then be read cyclically by a local sequencer 803 image refresh, fixed or animated, with for example a 100 Hz refresh of an 805 display of the 801 monitor. There may be some correlation between the contents of the various displayed images, i.e., since the library image data 782 will have been stored in association with service data, such as a codeword, specifying one type of image subject among several possible, the 792P manager program may be provided to group the same type of images displayed in the same region of the display 810, for example the same column, or the same floor level. In such a case, when selecting in library 782 among the images eligible for display, the manager program 792P chooses an image type specific to each column and, for each monitor 801 of the column considered, it limits its search to images of the type, represented by the code word, considered. The chosen type can then be replaced by another after a certain duration.

It may be necessary to adapt the image definition between the electronic image in the library 782 and the image format of the monitors 801. For example, a mobile phone can provide images of about 4 M pixels, while a monitor 801 has only for example 0.3 M pixels, that is to say about 16 times less. The sequencer 793 then performs a pixel value average calculation in blocks of 4 × 4, to define each time a pixel value to be transmitted to the monitor 801. However, it can simply be provided a sampling according to a value step 4, in rows and columns of pixels.

It is also planned to cyclically perform a magnifying effect, that is to say that a displayed image will expand by a factor N on the surface and come to crush the images displayed on the neighboring monitors 801. For this purpose, 792P manager program rereads the data of the image considered library 782 and fragments the image into, for example, a mosaic of 4 x 4 images, each fragment being intended to be displayed on a whole monitor 801. For this, the data elementary images, assumed to each represent a physical pixel monitor 801, are duplicated to appear in a block here having N = 16 times the area of a pixel. If necessary, if the image data is in compressed form, that is to say if, in general, the type of coding exploits a certain level of correlation between neighboring pixels, then it is necessary to decode 1 ' image to fragment and process the fragments, and then re-encode them individually.

The manager program 792P may provide smoothing processing between such blocks of pixels, to limit the quantization effect, if the viewers are likely to be too close to the monitors 801.

The N = 16 images thus created are then transmitted to the monitors 801 considered. This can be for example the monitors 801 located at the four lower floors of the four columns, with the addition of two additional monitors in the first column of monitors 811 and 812, dozens of hours, if one does not want to truncate some little dilated image. The old images displayed, "overwritten", can be retransmitted from the control room 780 after a certain delay, to return to the original state. It can also be expected that the expanded images are associated with service data indicating their nature and preventing the overwriting of the buffer 902 of the monitors 801 by the magnified image stored in the interface circuit 872. It will then be provided for the latter, another access to monitor 801, bypassing the buffer 902 and multiplexer 904 resulting in a two-lane sequencer 903. After completion of a timeout, then the sequencer 903 returns its read ^'buffer 902 by switching the multiplexer 904.

In the particular example of image definition indicated above, it is noted that, if an image dilation is carried out according to the factor N = 16, there is in fact no specific adaptation adaptation treatment. image to be made, since the image data library 782 have exactly the desired reserve of fineness of image definition. The only difference is then to omit the above operation of averaging or sampling. It should be noted that the image data transmission functions can be provided in a broader application framework than that of the display of a value, that is to say independently of any display constraint. a number of basic display elements. It will then be a system of dynamic display of images, which can excite every moment any desired number of basic elements of display, this number can be constant, that is to say represent the number basic elements ¹ display. FIGS. 5A and 5B are block diagrams of an alternative embodiment of the local unit 850 with the display 810 of FIGS. 4B and 4C, the elements functionally homologous to those of these figures bearing the same reference, except for the fact that that the hundred is "9".

The plurality of monitors 801 constituting the display 810 is here replaced by a single display 910, with a screen 905, associated with, and even here integrated in, a data processing terminal. The above terminal may for example be a laptop or equivalent, and preferably suitable for data transmission, WiFi type or other, or a telephone, wired or, as in this example, a portable telephone 900 .

The essential functions of the display 810 described above are unchanged. However, because of the now restricted size of the display 910, the local network 870 is replaced by a simple point-to-point link 970 between an interface circuit 965 and the local unit 950 and a single interface circuit 972 buffered 973, managing a set of physical pixel blocks of the screen 905 through a buffer 902 and a 903 multiplexer sequencer 904. Each block of screen pixels can thus have an image specific to it, the blocks of screen pixels for example 911, 912 corresponding to the monitors 811, 812. However, the size of the blocks of pixels being limited, the magnifying effect explained above makes it possible cyclically to better see each of the images. In particular it can be provided that the user can, by a laptop keyboard, select himself an image to expand temporarily.

Such a mobile phone 900 may, in a variant, itself constitute the system according to FIG. 4, except of course the network 770, that is to say with the control unit 780, for, in particular, receiving image data. from a transmitter equipment such as the terminal 761, that is to say, can be a mobile phone. A radiotelephone, cellular or satellite network, portable transmitting stations 761 can in particular be used in place of the Internet for the transmission of image data.

The mobile phone receiver 900 then comprises a local unit 950 comprising a 961 time-based multi-task central unit 96 and 962 transcoding table, providing both, in timeshare, conventional functions of bidirectional transmission of desired voice data , but also the exploitation of the image data, transmitted in a computer data channel, that is to say the functions of the control unit 780 and the local unit 850. In this way, in addition to the OSI levels 1 3, allowing the exchange of service messages for the establishment and the breaking of the communications, the central telephone unit 961 also ensures the higher OSI levels, and in particular the levels 6 and 7 related to the present application of presentation of the image information.

In view of the fact that the telephone function can be provided at the same time as the image display function, the latter is processed in the background by the central telephone unit 961, that is to say that the data received in a data transmission channel are temporarily stored, to be processed when the central telephone unit 961 is available. The task of processing the image data is thus associated with a priority level lower than a priority level of the processing of telephone data.

Alternatively, the indicated circuits of the above mobile phone may belong to a watch, that is to say that the voice circuits are then omitted. The watch may, however, retain wired or wireless circuits for receiving image data.

Claims

claims

A display (10) for a value of a range of a first plurality of possible one-digit values, comprising a second plurality of display basic elements (112, 114, 121, 124, 132, 141 , 144, 152, 153, 805, 905, 990) to display any one of said prerecording values of a said first plurality of respective positional base element groups together forming a pattern (100 or 300 or 500 or 700) specific to the considered value, characterized in that said respective positions of the entire second plurality are arranged in a basic pattern (100 or 300 or 500 or 700) of shape substantially representing an alphanumeric character.

A display according to claim 1, wherein one of the base element positions (132, 333, 343, 353, 532, 732) is located in the base pattern at a level specific to the element. basic consideration.

A display according to claim 2, wherein said specific level base element occupies an extreme (333, 343, 353) or mid-height (132, 532, 732) level in the base pattern (100, 500, 700).

4. Display according to one of claims 2 and 3, wherein said specific level base element

(132, 333, 343, 353, 532, 732) is arranged to present a different display state with respect to display states of the other basic elements.

5. Display according to one of claims 1 to 4, wherein the basic pattern (100 or 300 or 500 or 700) substantially represents a letter.

6. Display according to claim 5, wherein the basic pattern (100, 300, 500, 700) represents one of the letters of the group consisting of the letters d, E, I, L, O, V.

7. Display according to one of claims 1 to 6, wherein at least one of the base elements has an elongated shape and at least one of the basic elements has a substantially circular shape.

8. Display according to one of claims 1 to 7, wherein the base pattern (100, 300, 500, 700) is two-dimensional.

The display as claimed in claim 8, wherein each specific pattern is two-dimensional for digits exceeding 2.

10. Display according to one of claims 1 to 9, wherein the base pattern (100, 300, 500, 700) is visible at rest.

11. Set of displays with several displays according to one of claims 1 to 10 for displaying a number.

12. Set of displays according to claim 11, comprising at least two displays (100, 300, 500 or 700) each arranged to display a value from respectively at least two values and at least eleven values.

13. Set of displays according to claim 12, wherein the two displays (100, 300, 500 or 700) are arranged for each display a value from respectively three values and twelve values.

14. Set of displays according to one of claims 11 to 13, comprising four displays (1-00, 300, 500 or 700) according to claim 5, in basic patterns respectively representing the letters L, 0, V, E.

A display assembly according to claim 14, wherein the four displays (100, 300, 500 or 700) have second pluralities of 2, 9, 5 and 9 display basic elements, respectively.

16. Device for controlling a display (100 or 300 or 500 or 700) according to one of claims 1 to 10, characterized in that it comprises transcoding means (2, 3) arranged for, after receiving of data representing said digit, providing a corresponding specific set of individual commands for the various basic display elements, the supplied set belonging to a set of a said first plurality of games available for respectively the first plurality of possible values of the figure.

17. Device according to claim 16, wherein the transcoding means (2, 3) comprise a transcoding table in read-only memory.

The device according to claim 16, wherein the transcoding means (2, 3) comprises a bit counter (2) comprising a third plurality of bit stages each comprising a serial input (20C), counting, and an output ( 21S) connecting them in series, a first said stage (21) being arranged to receive, by the counting input (21C), a continuous stream of pulses of determined period, the plurality of outputs (21S) being furthermore connected to inputs of a transcoding combinational logic circuit (3) having outputs for providing feedback commands arranged to control a said third plurality of priority storage control (21D) parallel inputs, in the respective stages, respective bits representing a transcoded number.

19. Device according to one of claims 16 to 18, wherein the transcoding means (2, 3) are arranged so that any two adjacent games, in an ordered sequence of eight first said sets of individual commands, for the values respectively. 1 to 8, each have at least two different commands compared to the neighboring game.

20. Device according to one of claims 16 to 19, wherein the transcoding means (2, 3) are arranged so that, in some of the control sets, the display commands of the respective values correspond to positions of base elements arranged in a said specific pattern (711, 713, 721, 723, 732, 741, 751) substantially representing a conventional form of writing the considered value.

21. Device according to one of claims 16 to 20, wherein the transcoding means (2, 3) are arranged to provide, optionally, one of a said first plurality of nine sets of individual commands, respectively for values in a range from 1 to 9, each set of commands having a number of commands equal to the value to be displayed.

22. Device according to one of claims 16 to 21, wherein the transcoding means (2, 3) are arranged to control a set of circuits (30, 31, 32) for controlling the display arranged to invert polarities. excitation of a said second plurality of dipoles (D1, D2) constituting the basic display elements and each offering a choice of two possible colors according to the direction of polarity, and further arranged to inhibit on command the dipoles (D1, D2).

23. A control devices characterized according to one of claims 16 to ^'22, comprising a set of said transcoding means (2, 3) for the display of a set respectively (100, 300, 500, 700) one of claims 11 to 15.

24. A set of devices according to claim 23, wherein, so that two said numbers of the same value are represented by two substantially similar patterns of two of the displays, the transcoding means (2, 3) are arranged so that the two respective sets individual commands are mutually harmonized so that said two respective groups are formed of basic elements occupying positions defining two substantially identical pattern patterns.

25. Set of devices according to one of claims 23 and 24, wherein first and second transcoding means (2, 3) are mutually coupled so that the first transcoding means controls an incrementation of the second transcoding means when the first transcoding means reaches a value representing a numbering base.

The set of devices according to claim 25, wherein the first transcoding means is arranged to provide, optionally, one of said first plurality of at least nine sets of individual commands, for values respectively in one said range from 1 to 9, each set of commands having a number of commands equal to the value to be displayed.

27. Set of devices according to one of claims 23 to 26, comprising a stepper motor

(981) arranged to, under the control of the transcoding means (2, 3, 980), driving a movable display track (982) on which said display base element patterns (990) are distributed, associated with a pattern pointer (983).

28. Display system comprising a display or a set of displays according to claims 1 to 10, respectively 11 to 15, characterized in that it comprises a control room (780) containing control management means (791, 792, 793) arranged to control, upon the occurrence of predetermined type events, display control means (850, 872) for controlling a said display (810, 910) having said display basic elements. (805, 905).

The display system of claim 28, wherein each display base element (805, 905) is comprised of a block of pixels and the display control means (850, 872, 950, 972). are arranged to display an image specific to each block of pixels (805, 905).

The system of claim 29, wherein the control management means (791, 792, 793) is arranged to select an image in a library (782) and to address it to a block of pixels (805, 905). specific via the display control means (850, 872, 950, 972).

The system of claim 30, wherein the library (782) is provided to provide moving image data and the control management means (791, 792, 793) are arranged to transmit to the means of display control (850, 872, 950, 972), data packets containing a sequence of said images.

The system of claim 31, wherein, the moving image data being associated in library (782) with service data specifying one of several possible image types, the management means (791, 792, 793) are arranged to virtually cut the display (810, 910) into several regions and, for each region, to select images of a type specific to the region in question.

33. System according to one of claims 31 and 32, wherein the control management means (791, 792, 793) are arranged to periodically calculate expanded image data representing an image in a format suitable for a displaying on said plurality of pixel blocks (805, 905), and for transmitting the expanded image data to the pixel blocks of interest.

34. System according to one of claims 28 to 33, wherein the library (782) is connected to a data transmission network (760, 770).

35. System according to one of claims 28 to 34, wherein the display control means (850, 872, 801) and the display (810, 910) are integrated in a portable terminal (900).

36. The system of claim 35, wherein the control (780) is integrated in the portable terminal (900).