EP0285881A1 - Elektronische Analog-Uhr mit Angabe des Tages und des Datums - Google Patents
Elektronische Analog-Uhr mit Angabe des Tages und des Datums Download PDFInfo
- Publication number
- EP0285881A1 EP0285881A1 EP88104324A EP88104324A EP0285881A1 EP 0285881 A1 EP0285881 A1 EP 0285881A1 EP 88104324 A EP88104324 A EP 88104324A EP 88104324 A EP88104324 A EP 88104324A EP 0285881 A1 EP0285881 A1 EP 0285881A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- month
- signal
- watch
- circuit
- 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.)
- Granted
Links
- 230000004044 response Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Images
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. They generally include, arranged behind the dial, a disc bearing the indications of the days of the week, and another disc on which are inscribed the numbers 1 to 31 indicating the dates. The two discs are driven by the movement of the watch and a window, made 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 electronic watch according to the invention is mainly remarkable in that it comprises: - means for displaying time analogically; - a fixed graduation in the form of a ring bearing the regularly spaced indications of the days of the week of at least 5 consecutive weeks; - a pivoting index, mechanically coupled to the means for displaying the time, traversing on the fixed scale, in 24 hours, the distance separating a day from the following day; - a mobile scale, concentric with the fixed scale, bearing the numbers 1 to 31 to indicate the date, these numbers being arranged in ascending numerical order so that two consecutive numbers are opposite two days following on the fixed scale; - control means for moving the mobile scale; - a perpetual calendar circuit providing a calendar signal; and a correction circuit supplying, in response to the calendar signal, a correction signal to the control means for moving the mobile scale and bringing the number 1 opposite the index at the time of the passage of the watch for one month the next month.
- 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 FIG. 1. It includes an analog display of the time composed of a dial 2 and the hands of hours, minutes and seconds, respectively referenced 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 a indicator hand 7 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 ⁇ , makes it possible to set the watch to the time in a conventional manner.
- 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 to the time by means of the crown 11.
- correction means not shown, for setting the watch to the time 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 position, and open when the crown is in the correction position 11 ⁇ .
- the signal Sy is at the low logic level, which has the effect of blocking the gate E22 and of resetting the frequency divider 23 which receives, under these conditions, no signal. It is the same for the motor 16, which remains at rest. The hands can then only be moved by the crown which, in this position, is linked to the gear train in order to allow the watch to be set precisely. Of course when the hands driven by the crown pass by midnight, the contact X is activated in the same way as when they are driven by the first motor 16.
- 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.
- N depends, of course on the month, but also, if the watch must remain in accordance with the indications of a calendar perpetual, of the year in a 4 year cycle.
- 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 furthermore comprises a logic circuit 34 which generates from the signals Smc and Sab a signal S34 for the counter 31 in order to set its content to 1 when passing from watch from a month of less than 31 days to the following month. In this way the content of 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 US Pat. No. 4,300,222 relating to an electronic watch provided with a perpetual analog calendar.
- the correction circuit 40 finally prepares, from the signals S32 and S33, the correction signal, referenced S40, intended to control the position of the disc carrying the mobile 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 signal monthly Sm.
- This circuit delivers at its output the correction signal S40 which is normally 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)
- Electrically Operated Instructional Devices (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
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 true EP0285881A1 (de) | 1988-10-12 |
EP0285881B1 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 (6)
Country | Link |
---|---|
US (1) | US4815051A (de) |
EP (1) | EP0285881B1 (de) |
JP (1) | JPS64489A (de) |
CH (1) | CH667965GA3 (de) |
DE (1) | DE3861693D1 (de) |
HK (1) | HK61094A (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1134629A2 (de) * | 2000-02-29 | 2001-09-19 | Fernand Moser | Zeitanzeigevorrichtung |
EP1351105A1 (de) | 2002-04-02 | 2003-10-08 | Ulysse Nardin S.A. | Uhr mit ewigem Kalender |
EP2447788A1 (de) * | 2010-11-02 | 2012-05-02 | 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. |
CH717502A1 (fr) * | 2020-06-08 | 2021-12-15 | Richemont Int Sa | Système de calendrier pour pièce d'horlogerie. |
Families Citing this family (7)
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 |
EP1174844A3 (de) * | 2000-07-07 | 2006-06-28 | Wolfgang Müller | Elektronisch gesteuerter Kalender mit Zeigeranzeige |
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 |
EP3926415A1 (de) * | 2020-06-18 | 2021-12-22 | ETA SA Manufacture Horlogère Suisse | Aktualisierungsvorrichtung und entsprechendes verfahren |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH332899A (fr) * | 1958-03-17 | 1958-09-30 | Gisiger Lusa Armin | Montre-calendrier |
US3452535A (en) * | 1966-04-13 | 1969-07-01 | Ind De Metrologie Trophy Cie | Dating mechanism |
FR2085753A1 (de) * | 1970-04-01 | 1971-12-31 | Otero Uhrenrohwerke | |
GB1590467A (en) * | 1976-12-03 | 1981-06-03 | Citizen Watch Co Ltd | Electronic timepiece |
GB1602034A (en) * | 1977-06-03 | 1981-11-04 | Citizen Watch Co Ltd | Calendar timepiece |
Family Cites Families (3)
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 |
-
1987
- 1987-03-23 CH CH109887A patent/CH667965GA3/fr not_active IP Right Cessation
-
1988
- 1988-03-16 US US07/168,779 patent/US4815051A/en not_active Expired - Lifetime
- 1988-03-18 EP EP88104324A patent/EP0285881B1/de not_active Expired - Lifetime
- 1988-03-18 DE DE8888104324T patent/DE3861693D1/de not_active Expired - Lifetime
- 1988-03-23 JP JP63067467A patent/JPS64489A/ja active Granted
-
1994
- 1994-06-30 HK HK61094A patent/HK61094A/xx not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH332899A (fr) * | 1958-03-17 | 1958-09-30 | Gisiger Lusa Armin | Montre-calendrier |
US3452535A (en) * | 1966-04-13 | 1969-07-01 | Ind De Metrologie Trophy Cie | Dating mechanism |
FR2085753A1 (de) * | 1970-04-01 | 1971-12-31 | Otero Uhrenrohwerke | |
GB1590467A (en) * | 1976-12-03 | 1981-06-03 | Citizen Watch Co Ltd | Electronic timepiece |
GB1602034A (en) * | 1977-06-03 | 1981-11-04 | Citizen Watch Co Ltd | Calendar timepiece |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1134629A2 (de) * | 2000-02-29 | 2001-09-19 | Fernand Moser | Zeitanzeigevorrichtung |
EP1134629A3 (de) * | 2000-02-29 | 2005-02-09 | Fernand Moser | Zeitanzeigevorrichtung |
EP1351105A1 (de) | 2002-04-02 | 2003-10-08 | Ulysse Nardin S.A. | Uhr mit ewigem Kalender |
EP2447788A1 (de) * | 2010-11-02 | 2012-05-02 | 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. |
US8503267B2 (en) | 2010-11-02 | 2013-08-06 | Societe Anonyme De La Manufacture D'horlogerie Audemars Piguet & Cie | Calendar display device and calendar watch |
US8509035B2 (en) | 2010-11-02 | 2013-08-13 | Societe Anonyme De La Manufacture D'horlogerie Audemars Piguet & Cie | Calendar display device and calendar watch |
CH717502A1 (fr) * | 2020-06-08 | 2021-12-15 | Richemont Int Sa | Système de calendrier pour pièce d'horlogerie. |
Also Published As
Publication number | Publication date |
---|---|
US4815051A (en) | 1989-03-21 |
CH667965GA3 (de) | 1988-11-30 |
DE3861693D1 (de) | 1991-03-07 |
HK61094A (en) | 1994-07-01 |
JPH0514238B2 (de) | 1993-02-24 |
EP0285881B1 (de) | 1991-01-30 |
JPS64489A (en) | 1989-01-05 |
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