EP0285881B1 - Elektronische Analog-Uhr mit Angabe des Tages und des Datums - Google Patents

Elektronische Analog-Uhr mit Angabe des Tages und des Datums Download PDF

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Publication number
EP0285881B1
EP0285881B1 EP88104324A EP88104324A EP0285881B1 EP 0285881 B1 EP0285881 B1 EP 0285881B1 EP 88104324 A EP88104324 A EP 88104324A EP 88104324 A EP88104324 A EP 88104324A EP 0285881 B1 EP0285881 B1 EP 0285881B1
Authority
EP
European Patent Office
Prior art keywords
month
signal
circuit
watch
calendar
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
Application number
EP88104324A
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English (en)
French (fr)
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EP0285881A1 (de
Inventor
Pierre Schmidli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
Eta SA Fabriques dEbauches
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Application filed by Eta SA Fabriques dEbauches filed Critical Eta SA Fabriques dEbauches
Publication of EP0285881A1 publication Critical patent/EP0285881A1/de
Application granted granted Critical
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/005—Indicating the time optically by electric means by discs
    • G04C17/0058—Indicating the time optically by electric means by discs with date indication
    • G04C17/0066—Indicating the time optically by electric means by discs with date indication electromagnetically driven, e.g. intermittently
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means

Definitions

  • the present invention relates to an analog electronic watch which comprises a perpetual calendar indicating the day of the week and the day of the month, or calendar.
  • Such watches are well known (GB-A-1 590 467 & US-A-4 300 222), They generally include, arranged behind the dial, a disc bearing the indications of the days of the week, and another disc on which are entered the numbers 1 to 31 indicating the dates. The two discs are driven by the movement of the watch and a window in the dial reveals the indications designating the date of the current month and the corresponding day of the week.
  • These mechanical watches which have been known for a long time, have a fixed graduation, in the form of a ring, which is arranged on the dial and centered on the axis of the hands indicating the time.
  • This graduation is divided into 35 equal parts, each part bearing the indication of a day of the week for 5 consecutive weeks.
  • Another graduation also divided into 35 parts, concentric with the previous graduation but able to pivot around its center in response to a manual action, carries the inscriptions of the numbers going from 1 to 31. Each number corresponds to a calendar and it is written , opposite a day of the week, in one of the 31 consecutive parts of the graduation which thus presents a free space extending over 4 days.
  • These watches finally include an indicator hand, or index, which is driven by the movement so as to travel 1 / 35th of a turn in 24 hours around the axis of rotation of the other hands.
  • the present invention aims to provide an electronic analog watch having the combined advantages of the two types of watches which have just been mentioned, without having the disadvantages.
  • the analog electronic watch according to the invention has the advantage of simultaneously indicating the date, the day of the month, and the correspondence between the dates and the days for the current month, without requiring manual correction of the calendar at the start of each month. .
  • a watch according to the invention is shown in Figure 1. It includes a display analog of the hour composed of a dial 2 and the hour, minute and second hands, referenced respectively 3, 4 and 5.
  • the watch also has an index 6, or hand indicating the dates and days.
  • the index 6 is kinematically coupled to the hour hand 3 so as to traverse in 24 hours, continuously or by jumps, an angle corresponding to the 35th part of a revolution of the dial. All these needles are driven by a motor around the same axis of rotation.
  • the watch can advantageously also have an indicator hand 7 of the months, driven around its own axis of rotation by a motor provided for this purpose.
  • a fixed graduation 8 divided into 35 equal parts, each part bearing the indication of a day, Monday, Tuesday, etc., of 5 consecutive weeks, i.e. a total of 35 days, and a movable scale 9, carried by a disc pivoting around the same axis as hands 3, 4, 5 and 6.
  • the scale 9 is also divided into 35 equal parts, of which 31 consecutive parts bear the numbers of 1 to 31, inscribed in ascending order opposite and in the same direction as the rest of the days of the week on the graduation 8. In this arrangement, 4 consecutive parts of the graduation 9 therefore bear no indication.
  • a graduation 10 bearing the indications of the 12 months of the year, is arranged around the center of rotation of the needle 7.
  • the graduations 9 and 8 make it possible to read, moreover, the correspondence between the calendar and the day of the week for each day of the current month.
  • the disc with the graduation 9 must be moved with the help of a motor so that the number 1 comes next to the index 6, so that the watch continues to give the correct date.
  • a crown 11 which can occupy a neutral position 11 ′ and a pulled or correction position 11 ′′, enables the watch to be set in the conventional time.
  • the electronic movement of the watch shown in Figure 1 thus includes 3 motors, an electronic circuit to activate the motors, and a battery to power the circuit.
  • FIG. 2 An embodiment of this circuit is shown in Figure 2 where the battery is not shown.
  • a timepiece circuit 15 which supplies a time base signal S15 to a first motor 16 which, by means of a control mechanism 17, drives the hands 3, 4 and 5 displaying the time , as well as index 6.
  • the timepiece circuit 15 includes an oscillator 20 stabilized in frequency by a quartz resonator 21, providing a signal of 32,768 Hz for example, an ET22 gate with two inputs, one of these inputs being connected to the output of the oscillator, a frequency divider 23 whose input is connected to the output of the gate ET22, and a drive circuit 24 receiving from the frequency divider a signal of 1 Hz and supplying at its output the signal S15.
  • the frequency divider 23 also has an output which delivers a catch-up signal S23, formed of short pulses, having a frequency of the order of 10 Hz, and a reset input R which is connected to the output of a inverter 25, the input of this inverter being connected to the second input of the gate ET22.
  • the first motor 16 is, for example, of the stepping type with a single direction of rotation, or unidirectional. It drives, in the control mechanism 17, a first gear train, not shown, which advances the needles already described 3, 4, 5 and 6. This gear train also actuates a daily contact X, or first contact , closing it when the watch goes from one day to the next, that is to say at midnight, to produce a daily logic signal Sx. It will be assumed that the signal Sx is at the low logic level when the contact X is open, and at the high logic level when this contact is closed. The same rule will be applied to all signals produced by contacts.
  • the control mechanism 17 also includes correction means, not shown, for setting the watch by means of the crown 11.
  • correction means not shown, for setting the watch by means of the crown 11.
  • the crown 11 also acts, whatever its angular position, on a position contact Y, or second contact, which produces a logic signal Sy which is applied to the second input of the gate ET22. This contact is closed when the crown 11 is in the neutral position 11 ', and open when the crown is in the correction position 11 ".
  • the watch also includes a second drive circuit 26, similar to circuit 24, a second unidirectional motor 27, similar to motor 16 and connected to circuit 26, and a second gear train 28 connected to motor 27.
  • This second train gears drives, in the opposite direction to the index 6, the disc carrying the movable graduation 9 with a pitch of 1 / 35th of a turn, that is to say by the angle corresponding to the distance separating a date next, in response to an impulse applied to the input of circuit 26.
  • circuit 26 must have at the end of the previous month received N correction pulses on its input.
  • the N pulses are contained in a correction signal produced by a circuit essentially comprising a perpetual calendar circuit 30 and a correction circuit 40 which will now be described.
  • the perpetual calendar circuit 30 includes a 5-bit day counter counting by 31, referenced 31, a 4-bit month counter counting as 12, referenced 32, finally a 2-bit year counter counting by 4, referenced 33. These counters are connected in series.
  • the counter 31 receives on its input the daily signal Sx, produced by the contact X, and provides on an output, when the watch goes from one month to the next month, a monthly signal Sm.
  • the signal Sm is applied to the input of the counter 32 which provides, at the time of the passage of the watch from one year to the following year, an annual signal Sa which is applied to the input of the counter 33.
  • a signal representative of its content appears, referenced S32 for the counter 32 and S33 for the counter 33.
  • the counter 32 also provides a signal Smc indicating the short months, that is to say say those with less than 31 days, and the counter 33 a Sab signal indicating the leap year in a 4-year cycle.
  • the calendar circuit 30 also includes a logic circuit 34 which uses the signals Smc and Sab to generate a signal S34 for the counter 31 so as to set its content to 1 at the time of the passage of the watch for a month of less than 31 days. the next month. In this way the content of the counter 31 always remains in accordance with a perpetual calendar.
  • the signal Sm is produced by the passage to 1 of the content of the counter 31. It will be assumed that this signal is normally at the low logic level and that it goes to the high logic level at midnight at the end of a short month, to return to the logic level low no later than the next day.
  • circuit 30 will not be described in more detail because such circuits are well known.
  • An embodiment is, for example described with all the necessary precision in patent US-A-4,300,222 & GB-A-1,590,467 relating to an electronic watch provided with a perpetual analog calendar.
  • the correction circuit 40 finally develops, from the signals S32 and S33, the correction signal, referenced S40, intended to control the position of the disc carrying the movable graduation 9.
  • This circuit includes a read-only memory 41 and a conversion circuit 42 , also known as the well known Binary Rate Multiplier (BRM).
  • BRM Binary Rate Multiplier
  • the memory 41 receives the signals S32 and S33.
  • the signal S32 is a multiple 4-bit logic signal which can take 12 different states, each state corresponding to one month.
  • the signal S33 is, for its part, a 2-bit logic signal which can take 4 states, each state corresponding to a year of a 4-year cycle including a leap year.
  • the memory 41 also receives the monthly signal Sm to read the value of N when the calendar changes from one month to the following month. This value of N appears at the output of the memory in the form of a multiple logic signal S41 of 3 bits which can take 4 different states corresponding to the numbers 4, 5, 6 and 7.
  • the signal S41 is applied to the input of the circuit 42 which also receives the catch-up signal S23 of about 10 Hz, and the monthly signal Sm.
  • This circuit delivers at its output the correction signal S40 which is normally found at the low logic level, except at the beginning of each month.
  • the signal Sm it comprises a train of N pulses, the value of N being determined by the logic state of the signal S41.
  • the watch finally includes a third drive circuit 45, a third motor 46, connected to circuit 45, and a third gear train 47, controlled by motor 46 and moving the indicator hand for months 7 at each change of months in response to the monthly signal Sm applied to the input of circuit 45.
  • the watch may also advantageously include means, not shown, making it possible to select any month, past or future, and to move the graduation 9 to the position corresponding to this month in order to read the correspondence between the dates and the days, and ways to automatically return to the current month.
  • the calendar circuit 30 could include only the counters 31 and 32.
  • the calendar of the watch would then be of the semi-perpetual type.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Calculators And Similar Devices (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Electrically Operated Instructional Devices (AREA)

Claims (5)

1. Elektronische Analoguhr, die einen Dauerkalender zur Anzeige des Wochentages und des Monatstages aufweist, umfassend:
Mittel (3, 4, 5) zum analogen Anzeigen der Zeit,
eine feststehende ringförmige Skala (8), die in regelmäßigen Abständen die Indikationen der Wochentage von mindestens 5 aufeinanderfolgenden Wochen trägt,
einen mechanisch mit den Zeitanzeigemitteln gekuppelten drehbaren Zeiger (6), der auf der feststehenden Skala in 24 Stunden den Abstand durchläuft, der einen Tag vom nächstfolgenden trennt,
eine zu der feststehenden Skala konzentrische, bewegliche, die Zahlen 1 bis 31 zur Datumsanzeige tragende Skala (9), welche Zahlen in numerisch ansteigender Reihenfolge derart angeordnet sind, daß zwei aufeinanderfolgende Zahlen zwei auf der festehenden Skala aufeinanderfolgenden Tagen gegenüberstehen,
Steuermittel (26, 27, 28) zum Verlagern der beweglichen Skala,
eine Dauerkalenderschaltung (30), die ein die Monatszahl und die Jahreszahl in einem Vierjahreszyklus repräsentierendes Kalendersignal (S32, S33) liefert, und
eine Korrekturschaltung (40), die in Abhängigkeit von dem Kalendersignal den Steuermitteln ein Korrektursignal (S40) liefert zum Verlagern der beweglichen Skala um N Tage, um die Zahl 1 zum Zeitpunkt des Übergangs der Uhr von einem Monat zum folgenden Monat mit dem Zeiger zur Deckung zu bringen.
2. Uhr nach Anspruch 1, dadurch gekennzeichnet, daß die Korrekturschaltung umfaßt:
einen Festwertspeicher (41), der in Abhängigkeit von dem Kalendersignal ein die Zahl N repräsentierendes Signal (S41) liefert, und
eine Umsetzschaltung (42), die das von dem Festwertspeicher gelieferte Signal zu dem Korrektursignal verarbeitet.
3. Uhr nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Korrektursignal von einer Folge von Impulszügen gebildet wird, wobei jeder Impulszug zum Zeitpunkt des Übergangs der Uhr von einem Monat zum folgenden Monat auftritt und eine die Zahl N repräsentierende Impulsanzahl umfaßt.
4. Uhr nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß N den Wert hat:
4 am Ende der Monate Januar, März, Mai, Juli, August, Oktober, Dezember
5 am Ende der Monate April, Juni, September, November
6 am Ende des Monats Februar eines Schaltjahres,
7 am Ende des Monats Februar eines normalen Jahres.
5. Uhr nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß sie ferner mit der Kalenderschaltung verbundene Mittel (7, 10, 45, 46, 47) zur analogen Anzeige des Monats umfaßt.
EP88104324A 1987-03-23 1988-03-18 Elektronische Analog-Uhr mit Angabe des Tages und des Datums Expired - Lifetime EP0285881B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1098/87 1987-03-23
CH109887A CH667965GA3 (de) 1987-03-23 1987-03-23

Publications (2)

Publication Number Publication Date
EP0285881A1 EP0285881A1 (de) 1988-10-12
EP0285881B1 true EP0285881B1 (de) 1991-01-30

Family

ID=4202432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88104324A Expired - Lifetime EP0285881B1 (de) 1987-03-23 1988-03-18 Elektronische Analog-Uhr mit Angabe des Tages und des Datums

Country Status (5)

Country Link
US (1) US4815051A (de)
EP (1) EP0285881B1 (de)
CH (1) CH667965GA3 (de)
DE (1) DE3861693D1 (de)
HK (1) HK61094A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH688362B5 (fr) * 1995-03-28 1998-02-27 Ebauchesfabrik Eta Ag Pièce d'horlogerie électronique analogique à disque de quantième multifonctionnel.
US5893044A (en) * 1997-01-21 1999-04-06 Motorola Inc. Real time clock apparatus for fast acquisition or GPS signals
EP1134629A3 (de) * 2000-02-29 2005-02-09 Fernand Moser Zeitanzeigevorrichtung
DE10134772B4 (de) * 2000-07-07 2010-11-04 Müller, Wolfgang Vorrichtung zur Wochentag- und Monatstaganzeige
EP1351105B1 (de) 2002-04-02 2008-12-03 Manufacture et fabrique de montres et chronomètres Ulysse Nardin Le Locle SA Uhr mit ewigem Kalender
EP2447789B1 (de) * 2010-11-02 2013-08-07 Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Kalenderanzeigevorrichtung und Kalenderuhr
CH704043A1 (fr) * 2010-11-02 2012-05-15 Piguet & Co Horlogerie Dispositif d'affichage de calendrier et montre calendrier.
EP2469357B2 (de) * 2010-12-21 2016-06-29 The Swatch Group Research and Development Ltd. Stoßdämpfer-Gleitlager für eine sich drehende Triebfeder einer Uhr
USD762490S1 (en) * 2015-03-17 2016-08-02 Citizen Holdings Co., Ltd. Wrist watch
USD762491S1 (en) * 2015-03-17 2016-08-02 Citizen Holdings Co., Ltd. Wrist watch
CH717502B1 (fr) * 2020-06-08 2023-05-15 Richemont Int Sa Système de calendrier pour pièce d'horlogerie.
EP3926415A1 (de) * 2020-06-18 2021-12-22 ETA SA Manufacture Horlogère Suisse Aktualisierungsvorrichtung und entsprechendes verfahren

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US249536A (en) * 1881-04-15 1881-11-15 Calendar-clock
US422090A (en) * 1889-02-19 1890-02-25 miller
CH322899A (fr) * 1955-05-12 1957-07-15 Correvon Alfred Dispositif destiné à la production de fumées lourdes et leur introduction dans une ruche d'abeilles
CH332899A (fr) * 1958-03-17 1958-09-30 Gisiger Lusa Armin Montre-calendrier
FR92059E (fr) * 1966-04-13 1968-09-20 Cie Ind De Metrologie Trophy Mécanisme dateur perfectionné
DE7011783U (de) * 1970-04-01 1970-07-16 Epple Kg Otero Uhren Kalenderuhr.
JPS6013153B2 (ja) * 1976-12-03 1985-04-05 シチズン時計株式会社 カレンダ−付電子時計
GB1602034A (en) * 1977-06-03 1981-11-04 Citizen Watch Co Ltd Calendar timepiece

Also Published As

Publication number Publication date
CH667965GA3 (de) 1988-11-30
JPS64489A (en) 1989-01-05
US4815051A (en) 1989-03-21
EP0285881A1 (de) 1988-10-12
JPH0514238B2 (de) 1993-02-24
HK61094A (en) 1994-07-01
DE3861693D1 (de) 1991-03-07

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