EP0256434B1 - Electric clock - Google Patents
Electric clock Download PDFInfo
- Publication number
- EP0256434B1 EP0256434B1 EP87111317A EP87111317A EP0256434B1 EP 0256434 B1 EP0256434 B1 EP 0256434B1 EP 87111317 A EP87111317 A EP 87111317A EP 87111317 A EP87111317 A EP 87111317A EP 0256434 B1 EP0256434 B1 EP 0256434B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- emitting elements
- indication
- twelve
- minute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
- G04G9/04—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes
Definitions
- the invention relates to an electric watch, which consists of a display area provided with lighting elements and an electronic circuit for controlling these lighting elements, the surface serving for the display being designed as a square field and provided with lighting elements such that twelve lighting elements and on the outer part the inner part of four light elements are each arranged symmetrically, and the electronic circuit on the one hand the twelve light elements arranged on the outer part for both the hour and for the 5-minute display and on the other hand the four light elements arranged in the inner part for each controls minute displays lying on the outer part between successive 5-minute displays.
- US-A-4 106 281 discloses an electric watch which consists of a display surface provided with light elements and an electronic circuit for controlling these light elements, the surface serving for the display being designed as a square field and provided with light elements such that on the outer surface Part twelve light elements and four light elements are each arranged symmetrically on the inner part, and the electronic circuit on the one hand the twelve light elements arranged on the outer part both for the hour and for the 5-minute displays and on the other hand those arranged in the inner part controls four lighting elements for the minute displays lying on the outer part between successive 5-minute displays.
- hour and 5-minute displays turns out to be problematic, since both are displayed using the twelve lighting elements on the outer part.
- the invention has for its object to provide an electric watch of the same type in which the distinction between hour and 5-minute display is permanently possible.
- This object is achieved in a clock specified in the introduction in that the twelve lighting elements arranged on the outer part are activated both for the hour display in a first color and for the 5-minute display in a second color, that the four lighting elements located in the inner part are controlled in the second color, that with simultaneous activation of a lighting element for an hour and a 5-minute display, double activation takes place in such a way that the lighting element in question lights up in a third color, and that an additional lighting element arranged in the middle of the square field is activated continuously in the second half of the day.
- Another embodiment of the invention is that the twelve lighting elements, the four lighting elements and the additional lighting element are different in shape, color and size.
- diodes which can be controlled in multiple colors are used as lighting elements.
- the electrical control unit is expediently designed such that three consecutive counters with downstream decoders are provided as control units for the lighting elements, that the counters are connected to a quartz-stabilized oscillator via a frequency divider and that the display for morning / afternoon from the hour counter via a Flip-flop circuit is controlled.
- the time is shown in FIG. 1 by using a square field 1 on the top as a display surface and arrangement of 12 symmetrically distributed lighting elements 4 in the outer part 2 and four symmetrically distributed lighting elements 5 in the inner part 3 by lighting up one or two lighting elements 4 of the outer Part 2 and optionally from one to four light elements 5 of the inner part 3 are displayed, the light elements 4, 5 lighting up in different colors depending on the hour and minute display (for example green for the hours and red for the minutes).
- the hour is displayed by lighting up one of the lighting elements arranged in the outer part 2, which are attached like the hour numbers of conventional clocks and the upper lighting element the time 12 or 24 and the lower lighting element the time 6 or 18, and the lighting elements in between which are assigned the corresponding time.
- the minute is displayed once by lighting up one of the same twelve lighting elements 4 in a clockwise direction for all five minutes and by the four lighting elements 5 in the inner part 3 for the four subsequent minutes each, in a color different from the hour display.
- Fig. 1 four (4), 6, 6 are particularly marked (radiating), which, when they light up, indicate the time 1 pm and 11 minutes, for example the hours in green and the minutes in red, and the broad half of the day in red can be displayed.
- a quartz stabilized oscillator 7 is provided, which e.g. generates a frequency of 32 kHz.
- 8 denotes a frequency divider, by means of which the oscillator frequency is divided down to 1 Hz in order to control a first counter 9.
- This counter 9 controls the lighting elements 5 for the minute display 1 to 4 every 60 seconds via a decoder 10.
- the 4-minute counter 9 (with pulses) has run full, it gives a pulse to the counter 11 for the 5-minute intervals that are indicated by the lighting elements 4.
- the counter 11 is connected to the lighting elements 4 via the decoder 12.
- the hour counter 13 receives pulses from the counter 11 and also controls the lighting elements 4 via the decoder 14 after each hour.
- the lighting elements 4 can be designed such that they light up green when activated as a 5-minute display. If, on the other hand, the lighting elements 4 are activated as an hour display, they light up e.g. red on. If the 5-minute display and the hour display occur once per hour with the same lighting element 4, the lighting element 4 lights up in a color different from green and red.
- the hour counter 13 gives a pulse to the flip-flop circuit 15, which, depending on the time of day, causes the lighting element 6 to light up or go out. That way, on the watch read at any time whether the time for morning or afternoon is displayed.
- the electric clock according to the invention can be used for all types of clocks, for example as a standing, table, wall or arm-worn clock.
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Abstract
Description
Die Erfindung betrifft eine elektrische Uhr, die aus einer mit Leuchtelementen versehenen Anzeigefläche und einer elektronischen Schaltung zur Steuerung dieser Leuchtelemente besteht, wobei die der Anzeige dienende Fläche als quadratisches Feld ausgebildet und mit Leuchtelementen derart versehen ist, daß auf dem äußeren Teil zwölf Leuchtelemente sowie auf dem inneren Teil vier Leuchtelemente jeweils symmetrisch angeordnet sind, und wobei die elektronische Schaltung einerseits die auf dem äußeren Teil angeordneten zwölf Leuchtelemente sowohl für die Stunden- als auch für die 5-Minuten-Anzeige und andererseits die im inneren Teil angeordneten vier Leuchtelemente für die jeweils auf dem äußeren Teil zwischen aufeinanderfolgenden 5-Minuten-Anzeigen liegenden Minuten-Anzeigen steuert.The invention relates to an electric watch, which consists of a display area provided with lighting elements and an electronic circuit for controlling these lighting elements, the surface serving for the display being designed as a square field and provided with lighting elements such that twelve lighting elements and on the outer part the inner part of four light elements are each arranged symmetrically, and the electronic circuit on the one hand the twelve light elements arranged on the outer part for both the hour and for the 5-minute display and on the other hand the four light elements arranged in the inner part for each controls minute displays lying on the outer part between successive 5-minute displays.
Herkömmliche elektrische Uhren arbeiten entweder mit Zeigern oder mit Zifferblättern (Analoganzeige) oder mit Hilfe wechselnder Ziffern (Digitalanzeige).Conventional electric clocks work either with hands or with dials (analog display) or with the help of changing numbers (digital display).
Bisherige elektrische Uhren, welche mit Leuchtelementenanzeige arbeiten (DE-GM 84 34 084.3 und DE-GM 85 12 790.6), übernehmen das Grundprinzip einer Analoguhr. Sie benötigen 12 + 60 Leuchtelemente zur Anzeige von Stunden und Minuten (Anordnung in Kreisform); dabei erlauben sie keine Unterscheidung zwischen den Zeiträumen 0 - 12 und 13 - 24 Uhr.Previous electrical clocks that work with light element display (DE-GM 84 34 084.3 and DE-GM 85 12 790.6) adopt the basic principle of an analog clock. You need 12 + 60 light elements to display hours and minutes (arranged in a circle); they do not allow a distinction to be made between the periods 0:00 to 12:00 and 1:00 to 12:00 midnight.
US-A-4 106 281 offenbart eine elektrische Uhr, die aus einer mit Leuchtelementen versehenen Anzeigefläche und einer elektronischen Schaltung zur Steuerung dieser Leuchtelemente besteht, wobei die der Anzeige dienende Fläche als quadratisches Feld ausgebildet und mit Leuchtelementen derart versehen ist, daß auf dem äußeren Teil zwölf Leuchtelemente sowie auf dem inneren Teil vier Leuchtelemente jeweils symmetrisch angeordnet sind, und wobei die elektronische Schaltung einerseits die auf dem äußeren Teil angeordneten zwölf Leuchtelemente sowohl für die Stunden- als auch für die 5-Minuten-Anzeigen und andererseits die im inneren Teil angeordneten vier Leuchtelemente für die jeweils auf dem äußeren Teil zwischen aufeinanderfolgenden 5-Minuten-Anzeigen liegenden Minuten-Anzeigen steuert. Hierbei stellt sich jedoch die Unterscheidung zwischen Stunden- und 5-Minuten-Anzeige als problematisch heraus, da beide mittels der zwölf Leuchtelemente des äußeren Teils angezeigt werden.US-A-4 106 281 discloses an electric watch which consists of a display surface provided with light elements and an electronic circuit for controlling these light elements, the surface serving for the display being designed as a square field and provided with light elements such that on the outer surface Part twelve light elements and four light elements are each arranged symmetrically on the inner part, and the electronic circuit on the one hand the twelve light elements arranged on the outer part both for the hour and for the 5-minute displays and on the other hand those arranged in the inner part controls four lighting elements for the minute displays lying on the outer part between successive 5-minute displays. Here, however, the distinction between hour and 5-minute displays turns out to be problematic, since both are displayed using the twelve lighting elements on the outer part.
Der Erfindung liegt die Aufgabe zugrunde, eine elektrische Uhr der gleichen Art zu schaffen, bei der die Unterscheidung zwischen Stunden- und 5-Minuten-Anzeige permanent möglich ist.The invention has for its object to provide an electric watch of the same type in which the distinction between hour and 5-minute display is permanently possible.
Diese Aufgabe wird bei einer eingangs näher bezeichneten Uhr dadurch gelöst, daß die auf dem äußeren Teil angeordneten zwölf Leuchtelementesowohl für die Stunden-Anzeige in einer ersten Farbe als auch für die 5-Minuten-Anzeige in einer zweiten Farbe angesteuert werden,
daß die im inneren Teil liegenden vier Leuchtelemente in der zweiten Farbe angesteuert werden,
daß bei gleichzeitiger Ansteuerung eines Leuchtelementes für eine Stunden- und eine 5-Minuten-Anzeige eine Doppelansteuerung derart erfolgt, daß das betreffende Leuchtelement in einer dritten Farbe aufleuchtet, und
daß ein in der Mitte des quadratischen Feldes angeordnetes zusätzliches Leuchtelement in der zweiten Tageshälfte dauernd aufleuchtend angesteuert wird.This object is achieved in a clock specified in the introduction in that the twelve lighting elements arranged on the outer part are activated both for the hour display in a first color and for the 5-minute display in a second color,
that the four lighting elements located in the inner part are controlled in the second color,
that with simultaneous activation of a lighting element for an hour and a 5-minute display, double activation takes place in such a way that the lighting element in question lights up in a third color, and
that an additional lighting element arranged in the middle of the square field is activated continuously in the second half of the day.
Eine andere Ausbildung der Erfindung besteht darin, daß die zwölf Leuchtelemente, die vier Leuchtelemente sowie das zusätzliche Leuchtelement in Form, Farbe und Größe voneinander verschieden sind.Another embodiment of the invention is that the twelve lighting elements, the four lighting elements and the additional lighting element are different in shape, color and size.
Erfindungsgemäß ist vorgesehen, daß als Leuchtelemente mehrfarbig ansteuerbare Dioden verwendet werden.It is provided according to the invention that diodes which can be controlled in multiple colors are used as lighting elements.
Das elektrische Steuergerät ist zweckmäßigerweise so ausgebildet, daß als Steuergerät für die Leuchtelemente drei hintereinander geschaltete Zähler mit nachgeschalteten Dekodern vorgesehen sind, daß die Zähler über einen Frequenzteiler mit einem quarzstabilisierten Oszillator verbunden sind und daß die Anzeige für Vor-/Nachmittag von dem Stundenzähler über eine Flip-Flop-Schaltung gesteuert wird.The electrical control unit is expediently designed such that three consecutive counters with downstream decoders are provided as control units for the lighting elements, that the counters are connected to a quartz-stabilized oscillator via a frequency divider and that the display for morning / afternoon from the hour counter via a Flip-flop circuit is controlled.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß mit einem geringen Aufwand an Anzeigemitteln eindeutig die Zeit nach Stunden und Minuten sowie die Unterscheidung nach Vor- bzw. Nachmittag abgelesen werden kann.The advantages achieved by the invention consist in particular in that the time after hours and minutes and the distinction after morning and afternoon can be read clearly with a small expenditure of display means.
Die Erfindung wird anhand der Zeichnungen näher erläutert.The invention is explained in more detail with reference to the drawings.
Es zeigen
- Fig. 1
- das Anzeigefeld der neuen elektrischen Uhr und
- Fig. 2
- das Blockschaltbild des dazugehörigen elektrischen Steuergeräts.
- Fig. 1
- the display field of the new electric clock and
- Fig. 2
- the block diagram of the associated electrical control unit.
Die Uhrzeit wird gemäß Fig. 1 durch Verwendung eines auf der Spitze stehenden quadratischen Felds 1 als Anzeigefläche und Anordnung von 12 symmetrisch verteilten Leuchtelementen 4 im äußeren Teil 2 und vier symmetrisch verteilten Leuchtelementen 5 im inneren Teil 3 durch Aufleuchten eines oder zweier Leuchtelemente 4 des äußeren Teils 2 und gegebenenfalls von einem bis vier Leuchtelemente 5 des inneren Teils 3 angezeigt, wobei die Leuchtelemente 4, 5 je nach Stunden- und Minutenanzeige in unterschiedlicher Farbe aufleuchten (z.B. grün für die Stunden und rot für die Minuten).The time is shown in FIG. 1 by using a square field 1 on the top as a display surface and arrangement of 12 symmetrically distributed lighting elements 4 in the outer part 2 and four symmetrically
Die Stundenanzeige erfolgt durch Aufleuchten einer der im äußeren Teil 2 angeordneten Leuchtelemente, wobei diese wie die Stundenziffern herkömmlicher Uhren angebracht sind und dem oberen Leuchtelement die Uhrzeit 12 bzw. 24 und dem unteren Leuchtelement die Uhrzeit 6 bzw. 18, sowie den dazwischen liegenden Leuchtelementen die ihnen entsprechende Uhzreit zugeordnet ist.The hour is displayed by lighting up one of the lighting elements arranged in the outer part 2, which are attached like the hour numbers of conventional clocks and the upper lighting element the time 12 or 24 and the lower lighting element the
Die Minutenanzeige erfolgt einmal durch Aufleuchten eines der gleichen zwölf Leuchtelemente 4 im Uhrzeigersinn für alle Fünf-Minuten und durch die im inneren Teil 3 liegenden vier Leuchtelemente 5 für die jeweils vier folgenden Minuten, in einer von der Stundenanzeige verschiedenen Farbe.The minute is displayed once by lighting up one of the same twelve lighting elements 4 in a clockwise direction for all five minutes and by the four
Das sich stündlich einmal ergebende Problem, zur gleichen Zeit mit dem gleichen Leuchtelement sowohl eine Stunden- als auch eine (Fünf-) Minutenanzeige auszudrücken (vergleichbar der Situation des Überlagerns der Zeiger bei einer Analoguhr), ist dadurch gelöst, daß für diesen Zeitraum das betreffende Leuchtelement doppelt angesteuert wird und in einer dritten, von den beiden anderen Farben unterscheidbaren Farbe aufleuchtet.The problem that arises once an hour, to express both an hour and a (five) minute display at the same time with the same light element (comparable to the situation of overlapping the hands with an analogue clock), is solved by the fact that for this period the respective one Light element is controlled twice and lights up in a third color that can be distinguished from the other two colors.
In der Mitte des quadratischen Felds 1 ist ein zusätzliches Leuchtelement 6 angeordnet, welches beispielsweise während der zweiten Tageshälfte (13 bis 24 Uhr) ständig erleuchtet bleibt, um so auf einen Blick die beiden Tageshälften unterscheiden zu können.In the middle of the square field 1 there is an
In Fig. 1 sind besonders (strahlenförmig) gekenneichnet vier Leuchtelemente 4, 5, 6, welche durch ihr Aufleuchten die Uhrzeit 13 Uhr und 11 Minuten angeben, wobei z.B. die Stunden in grüner und die Minuten in roter, sowie die weite Tageshälfte in roter Farbe angezeigt werden können.In Fig. 1, four (4), 6, 6 are particularly marked (radiating), which, when they light up, indicate the time 1 pm and 11 minutes, for example the hours in green and the minutes in red, and the broad half of the day in red can be displayed.
Aus Fig. 2 ist das Blockschaltbild des elektrischen Steuergeräts für die Leuchtelemente 4, 5, 6 ersichtlich. Es ist ein quarstabilisierter Oszillator 7 vorgesehen, der z.B. eine Frequenz von 32 kHz erzeugt. Mit 8 ist ein Frequenzteiler bezeichnet, mit dessen Hilfe die Oszillatorfrequenz auf 1 Hz herunter geteilt wird, um damit einen ersten Zähler 9 anzusteuern. Dieser Zähler 9 steuert alle 60 Sekunden über einen Dekoder 10 die Leuchtelemente 5 für die Minutenanzeige 1 bis 4.2 shows the block diagram of the electrical control device for the
Ist der 4-Minutenzähler 9 (mit Impulsen) voll gelaufen, so gibt er einen Impuls an den Zähler 11 für die 5-Minuten-Intervalle, die mit den Leuchtelementen 4 angezeigt werden. Der Zähler 11 ist über den Dekoder 12 mit den Leuchtelementen 4 verbunden.When the 4-minute counter 9 (with pulses) has run full, it gives a pulse to the
Der Stundenzähler 13 erhält Impulse von dem Zähler 11 und steuert nach Ablauf jeder Stunde über den Dekoder 14 ebenfalls die Leuchtelemente 4 an.The hour counter 13 receives pulses from the
Die Leuchtelemente 4 können so ausgebildet sein, daß sie, als 5-Minutenanzeige angesteuert, grün aufleuchten. Werden die Leuchtelemente 4 dagegen als Stundenanzeige angesteuert, so leuchten sie z.B. rot auf. Wenn einmal pro Stunde die 5-Minutenanzeige und die Stundenanzeige mit dem gleichen Leuchtelement 4 erfolgen, so leuchtet das Leuchtelement 4 in einer von grün und rot verschiedenen Farbe.The lighting elements 4 can be designed such that they light up green when activated as a 5-minute display. If, on the other hand, the lighting elements 4 are activated as an hour display, they light up e.g. red on. If the 5-minute display and the hour display occur once per hour with the same lighting element 4, the lighting element 4 lights up in a color different from green and red.
Nach Ablauf von 12 Stunden gibt der Stundenzähler 13 einen Impuls an die Flip-Flop-Schaltung 15, die das Leuchtelement 6 je nach Tageszeit aufleuchten oder erlöschen läßt. Auf diese Weise kann auf der Uhr jederzeit abgelesen werden, ob die Zeit für Vor- oder Nachmittag angezeigt wird.After 12 hours, the hour counter 13 gives a pulse to the flip-
Mit 16 ist ein Netzteil bezeichnet, das die Stromversorgung für alle Elemente des elektrischen Steuergeräts sicherstellt.16 with a power supply is designated, which ensures the power supply for all elements of the electrical control unit.
Die elektrische Uhr nach der Erfindung kann für alle Uhren-Typen verwendet werden, so beispielsweise als Stand-, Tisch-, Wand- oder am Arm zu tragende Uhr.The electric clock according to the invention can be used for all types of clocks, for example as a standing, table, wall or arm-worn clock.
Claims (4)
- Electric clock which comprises an indicating dial provided with light-emitting elements and an electronic circuit for regulating these light-emitting elements, in which the dial serving for indication is designed as a square field (1) and is provided with light-emitting elements (4, 5) in such a manner that twelve light-emitting elements (4) are disposed on the outer part (2) and four light-emitting elements (5) are disposed in the inner part (3), in each instance symmetrically, and in which the electronic circuit regulates on the one hand the twelve light-emitting elements (4) disposed on the outer part (2) both for the hour indication and also for the 5-minute indication and on the other hand the four light-emitting elements (5) disposed in the inner part (3) for the minute indications situated between successive 5-minute indications on the outer part (2) in each instance, characterized in that. the twelve light-emitting elements (4) disposed on the outer part (2) are driven both for the hour indication in a first colour and also for the 5-minute indication in a second colour,. the four light-emitting elements (5) situated in the inner part (3) are driven in the second colour,. with simultaneous drive of a light-emitting element (4) for an hour indication and a 5-minute indication a dual drive takes place in such a manner that the pertinent light-emitting element (4) illuminates in a third colour and. an additional light-emitting element (6) disposed at the centre of the square field (1) is permanently driven to illuminate in the second half of the day.
- Electric clock according to Claim 1, characterized in that the twelve light-emitting elements (4), the four light-emitting elements (5) and the additional light-emitting element (6) are different from one another in shape, colour and size.
- Electric clock according to Claim 1 or 2, characterized in that diodes (LED) which can be multicolour-driven are provided as light-emitting elements (4, 5, 6).
- Electric clock according to one or more of the preceding claims, characterized in that three series-connected counters (9, 11, 13) with downstream decoders (10, 12, 14) are provided as a regulating device for the light-emitting elements (4, 5, 6), in that the counters (9, 11, 13) are connected via a frequency divider (8) to a quartz-stabilized oscillator (7) and in that the indication (6) for a.m./p.m. is regulated by the hour counter (13) via a flip-flop circuit (15).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8621553U | 1986-08-11 | ||
| DE8621553U DE8621553U1 (en) | 1986-08-11 | 1986-08-11 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0256434A2 EP0256434A2 (en) | 1988-02-24 |
| EP0256434A3 EP0256434A3 (en) | 1989-12-27 |
| EP0256434B1 true EP0256434B1 (en) | 1994-11-02 |
Family
ID=6797329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87111317A Expired - Lifetime EP0256434B1 (en) | 1986-08-11 | 1987-08-05 | Electric clock |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4803672A (en) |
| EP (1) | EP0256434B1 (en) |
| AT (1) | ATE113734T1 (en) |
| CA (1) | CA1288249C (en) |
| DE (2) | DE8621553U1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2204429B (en) * | 1987-04-24 | 1991-09-04 | Salim Emile Kahil | Timepiece. |
| DE4111415A1 (en) * | 1991-04-09 | 1992-10-15 | Dietrich Von Dipl Ing Haebler | Visual time display using quinary matrix presentation - has columnar construction with minimum number of modular light sources giving clear resolution to 1 minute of time |
| US5818798A (en) * | 1996-04-19 | 1998-10-06 | Howard Zaretsky | Timepiece with integral alphanumeric display |
| US5896348A (en) * | 1997-06-13 | 1999-04-20 | Lyon; Zachary W. | Method and timepiece for displaying time using grouped binary indicators |
| FR2838838B1 (en) * | 2002-04-19 | 2004-07-30 | Barth Daniel Benedict | JEWELERY WATCH, PARTICULARLY A BRACELET WATCH WITH LIGHTED DISPLAY |
| GB2391334A (en) * | 2002-07-27 | 2004-02-04 | George Ernest Dunning | Analogue display for a clock using arrays of lamps |
| DE102004058246A1 (en) * | 2004-12-02 | 2006-06-08 | Städtler, Marc-Michael, Dipl.-Ing. | Analog indicator |
| US7333398B2 (en) * | 2006-01-26 | 2008-02-19 | Cube Root, Inc. | Device for the indication of elapsed time |
| US20080175106A1 (en) * | 2007-01-22 | 2008-07-24 | Michael Vikesland | Chronometric display means |
| GB2453714B (en) * | 2007-09-06 | 2010-06-02 | Gro Group Int Ltd | Device |
| JP1526455S (en) * | 2014-09-02 | 2015-06-15 | ||
| JP1521361S (en) * | 2014-09-16 | 2015-04-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2169208A (en) * | 1937-05-26 | 1939-08-15 | Mark J Saperston | Electrically operated clock |
| US3596462A (en) * | 1969-01-31 | 1971-08-03 | Royce Hayes | Electronic clock |
| US3958409A (en) * | 1974-09-12 | 1976-05-25 | Solomon Manber | Watch display |
| US3969887A (en) * | 1973-03-08 | 1976-07-20 | Kabushiki Kaisha Suncrux Research Office | Electronically controlled timepieces using liquid crystal display elements |
| US4041692A (en) * | 1976-01-08 | 1977-08-16 | Amelect Incorporated | Electronic clock having time indicating light display |
| FR2341889A1 (en) * | 1976-02-17 | 1977-09-16 | Leybold Heraeus Gmbh & Co Kg | Chronography for scientific experiments - uses circle of LEDs to indicate fractions of second, with numeric second display at centre |
| JPS5312666A (en) * | 1976-07-21 | 1978-02-04 | Seiko Instr & Electronics Ltd | Digital display type electronic watch |
| DE2652866A1 (en) * | 1976-11-20 | 1978-05-24 | Agfa Gevaert Ag | Electronic watch with analogue display - uses radial semiconductor display elements arranged on one or more carrier discs |
| US4702615A (en) * | 1986-12-24 | 1987-10-27 | Karel Havel | Analog display timepiece |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3145526A (en) * | 1961-07-13 | 1964-08-25 | John J Kroon | Luminous electric clock |
| US4007583A (en) * | 1975-05-22 | 1977-02-15 | Rca Corporation | Electronic timepiece |
| US4068465A (en) * | 1975-07-14 | 1978-01-17 | Bernard M. Licata | Clock using alternating current cycle counting |
| FR2343276A1 (en) * | 1976-03-04 | 1977-09-30 | Eden Shoshana | Electronic clock with positional diode display - has resetting circuit employing rheostat coupled to switch |
| US4106281A (en) * | 1976-06-28 | 1978-08-15 | Freeman Alfred B | Time displays for electronic time keeping devices |
| FR2376450A1 (en) * | 1976-12-29 | 1978-07-28 | Cetehor | LED analogue time display - uses two concentric sets of radial display elements to simulate hours and minutes hands |
| DE2919563C3 (en) * | 1979-05-15 | 1982-02-04 | Antula, Jovan, Dr.-Ing., 8000 München | Method and device for quasi-analog time display |
| US4254487A (en) * | 1979-06-18 | 1981-03-03 | Lee Shu Tso | Electronic time piece |
-
1986
- 1986-08-11 DE DE8621553U patent/DE8621553U1/de not_active Expired
-
1987
- 1987-08-05 AT AT87111317T patent/ATE113734T1/en not_active IP Right Cessation
- 1987-08-05 DE DE3750713T patent/DE3750713D1/en not_active Expired - Fee Related
- 1987-08-05 EP EP87111317A patent/EP0256434B1/en not_active Expired - Lifetime
- 1987-08-06 US US07/082,787 patent/US4803672A/en not_active Expired - Lifetime
- 1987-08-10 CA CA000544072A patent/CA1288249C/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2169208A (en) * | 1937-05-26 | 1939-08-15 | Mark J Saperston | Electrically operated clock |
| US3596462A (en) * | 1969-01-31 | 1971-08-03 | Royce Hayes | Electronic clock |
| US3969887A (en) * | 1973-03-08 | 1976-07-20 | Kabushiki Kaisha Suncrux Research Office | Electronically controlled timepieces using liquid crystal display elements |
| US3958409A (en) * | 1974-09-12 | 1976-05-25 | Solomon Manber | Watch display |
| US4041692A (en) * | 1976-01-08 | 1977-08-16 | Amelect Incorporated | Electronic clock having time indicating light display |
| FR2341889A1 (en) * | 1976-02-17 | 1977-09-16 | Leybold Heraeus Gmbh & Co Kg | Chronography for scientific experiments - uses circle of LEDs to indicate fractions of second, with numeric second display at centre |
| JPS5312666A (en) * | 1976-07-21 | 1978-02-04 | Seiko Instr & Electronics Ltd | Digital display type electronic watch |
| DE2652866A1 (en) * | 1976-11-20 | 1978-05-24 | Agfa Gevaert Ag | Electronic watch with analogue display - uses radial semiconductor display elements arranged on one or more carrier discs |
| US4702615A (en) * | 1986-12-24 | 1987-10-27 | Karel Havel | Analog display timepiece |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE113734T1 (en) | 1994-11-15 |
| EP0256434A3 (en) | 1989-12-27 |
| EP0256434A2 (en) | 1988-02-24 |
| US4803672A (en) | 1989-02-07 |
| DE8621553U1 (en) | 1987-06-04 |
| DE3750713D1 (en) | 1994-12-08 |
| CA1288249C (en) | 1991-09-03 |
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