EP0694822A1 - Uhr mit einer den magnetischen Norden anzeigenden Vorrichtung - Google Patents

Uhr mit einer den magnetischen Norden anzeigenden Vorrichtung Download PDF

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Publication number
EP0694822A1
EP0694822A1 EP95111303A EP95111303A EP0694822A1 EP 0694822 A1 EP0694822 A1 EP 0694822A1 EP 95111303 A EP95111303 A EP 95111303A EP 95111303 A EP95111303 A EP 95111303A EP 0694822 A1 EP0694822 A1 EP 0694822A1
Authority
EP
European Patent Office
Prior art keywords
watch
magnetic
permanent magnet
axis
direction indicator
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
Application number
EP95111303A
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English (en)
French (fr)
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EP0694822B1 (de
Inventor
Jean-Jacques Born
Etienne Bornand
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.)
Asulab AG
Original Assignee
Asulab AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asulab AG filed Critical Asulab AG
Publication of EP0694822A1 publication Critical patent/EP0694822A1/de
Application granted granted Critical
Publication of EP0694822B1 publication Critical patent/EP0694822B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/06—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass
    • G04B47/065—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass with a compass

Definitions

  • the present invention relates to a watch comprising a device for indicating the earth's magnetic north.
  • the invention relates to such a device for indicating terrestrial magnetic north, the active element of which is formed by a permanent bipolar magnet.
  • the magnetic north indication device also comprises a direction indicator fixed, at a first end, to the annular permanent magnet and arranged so that its second end appears in a circular slot provided in the dial of the watch to allow a user of this watch will identify the direction of the magnetic axis of the annular permanent magnet which is supposed to align with the direction of the earth's magnetic flux.
  • the watch comprising the magnetic north indication device described above has certain major drawbacks.
  • the arrangement of the permanent magnet between the watch movement and the watch face increases the thickness of this watch, which goes against the constant concern of watchmakers. provide watches with a reduced thickness for reasons of comfort when the watch is worn on the wrist and for aesthetic reasons.
  • the arrangement of the annular permanent magnet coaxial with the central axis of the movement of the watch is disadvantageous for the operation of the device for indicating the magnetic north when the watch movement comprises magnetic masses, that is to say masses having a low magnetic reluctance. These magnetic masses disturb the terrestrial magnetic field and orient the permanent magnet independently of this terrestrial magnetic field if this permanent magnet is not sufficiently far from these magnetic masses, in particular from the battery of an electronic movement.
  • the magnetic north indication device does not work properly. If, on the other hand, the permanent magnet is moved away from the movement to reduce the attraction of the magnetic masses on this permanent magnet, the thickness of the watch is considerably increased, which deprives such a watch of any commercial future.
  • the arrangement of the permanent magnet above a movement comprising magnetic masses has the consequence that the earth's magnetic flux is concentrated in the region defined by these magnetic masses. As a result, the density of the earth's magnetic flux passing through the permanent magnet of the magnetic north device is lower. Thus, the effectiveness of this device is reduced.
  • the object of the present invention is to overcome the drawbacks mentioned above by providing a watch comprising a device for indicating magnetic north, the arrangement of which does not affect the thickness of the watch or only affects it in a least measure and, together, whose magnetic functioning allows obtain a correct indication of the Earth's magnetic north.
  • the invention relates firstly to a watch comprising a timepiece movement, a case inside which this timepiece movement is arranged and means for indicating magnetic north also arranged inside said case, these means of indication of magnetic north comprising a bipolar permanent magnet capable of rotating around a first axis of rotation and a direction indicator secured to the permanent magnet.
  • the permanent magnet has a radial magnetization defining a magnetic axis substantially perpendicular to said first axis of rotation.
  • This watch is characterized in that the permanent magnet is located inside a lateral peripheral region of the watch movement.
  • the permanent magnet forming the active element of the device for indicating magnetic north does not necessarily increase the thickness of the watch since this permanent magnet is arranged laterally to the watch movement of the watch.
  • the permanent magnet is mounted on a shaft to which the direction indicator is fixed, the latter being located between the dial and the watch crystal while the permanent magnet is located between the background and dial of this watch.
  • the permanent magnet is located in a lateral peripheral region external to the watch movement contained in the watch.
  • the permanent magnet is located in an inner peripheral region of the watch movement, the shaft carrying the permanent magnet having two pivots mounted respectively in two bearings arranged in the frame of this watch movement.
  • the invention relates secondly to a watch whose watch movement includes magnetic masses, in particular an electronic watch movement, the permanent magnet of the magnetic north indication device being arranged in the case of this watch as described above and at a sufficient distance from said magnetic masses so that its minimum energy position is essentially determined by the Earth's magnetic flux passing through the watch.
  • the permanent magnet is formed by a ring mounted directly on a shaft of a relatively small diameter so that the permanent magnet is included in a small volume of the watch case, l 'direction indicator having a longitudinal dimension much greater than the radial dimension of the annular permanent magnet and being formed of a non-magnetic material.
  • the active element of the magnetic north indication device formed by the permanent magnet can be moved away from the magnetic masses of the watch movement included in the watch by being arranged at the edge of the watch case without harming good reading of the magnetic north direction indicated by the direction indicator.
  • This direction indicator being non-magnetic, it can without other approach the magnetic masses of the watch movement without affecting the precision and the sensitivity of the magnetic north indication device according to the invention.
  • the active element of the device for indicating the terrestrial magnetic north and the direction indicator are physically separated from each other, it is provided, according to the invention, to orient the direction indicator relative to the magnetic axis of the permanent magnet in such a way that this direction indicator is oriented precisely in the direction of terrestrial magnetic north when it is aligned with a positioning mark.
  • the angular offset between the longitudinal axis of the direction indicator and the magnetic axis of the permanent magnet depends on the disturbance of the earth's magnetic field generated by the magnetic masses present in the watch movement and on the position of the positioning marker mentioned above.
  • Another object of the invention is to provide a watch comprising a magnetic north indication device as described above allowing a user having this watch on his wrist to easily follow a course, that is to say to follow a determined direction relative to the terrestrial magnetic north.
  • Another object of the invention is to provide a watch comprising a magnetic north indication device as described above used to indicate the direction of a given place from at least one other place.
  • the place whose direction is given is Mecca.
  • the watch 1 comprises a watch movement 2 associated with two hands 4 and 6 serving for the analog display of the time.
  • Watch 1 further comprises a crystal 8, fixed in a bezel 10, and a middle part 12 also forming the bottom of the watch case.
  • Watch 1 also includes a device 14 for indicating the direction of terrestrial magnetic north.
  • This device 14 comprises a bipolar permanent magnet 16 mounted on a shaft 18 defining an axis of rotation 20.
  • the bipolar permanent magnet 16 defines a magnetic axis (not shown) perpendicular to the axis of rotation 20.
  • the shaft 18 provided with the magnet 16 is housed inside a cage 22.
  • This cage 22 is arranged in the middle part 12 in the outer lateral peripheral region of the watch movement 2.
  • a direction indicator 24 is fixedly connected to the shaft 18. This direction indicator 24 serves to indicate the direction of magnetic north as will be described more precisely below.
  • the permanent magnet 16 is arranged in the lateral peripheral region of the watch movement 2 and is located between the dial 26 of watch 1 and the back of this watch.
  • the arrangement of the device 14 generates, in the present embodiment, strictly no increase in the thickness of the watch 1.
  • the direction indicator 24 is arranged between the dial 26 and the crystal 8 of watch 1 at the same level as the hour hand 6, the minute hand 4 being arranged so as to pass over the direction indicator 24. Therefore, the direction indicator 24 n '' does not increase the thickness of watch 1.
  • FIG. 2 is shown a variant of the first embodiment of Figure 1.
  • the watch 31 includes a middle part 32 on which is fixed a crystal 8 and a separable base 34.
  • the watch movement 2 is mounted in a casing circle 36 on the surface of which is provided the dial 26 of the watch 31.
  • This watch 31 also includes a device 14 for indicating the magnetic north identical to that described in FIG. 1, but arranged in the casing circle 36. It will be noted here that the magnetic axis 38 of the permanent magnet 16 has been shown in this figure 2.
  • the other references already described in Figure 1 will not be described here again in detail.
  • the permanent magnet 16 is located in the outer peripheral region of the watch movement 2.
  • the watch movement 2 is located off-center relative to the middle part 32.
  • the arrangement of the device 14 d the indication of the magnetic north direction does not again generate any excess thickness of the watch 31.
  • the cage 22 arranged in the casing circle 36 comprises two bearings 40 and 42 in which are respectively guided two pivots 44 and 46 of the shaft 18.
  • the first pivot 46 forming a first end of the shaft 18 rests on a counter-pivot 48 arranged in the cage 22.
  • the pivot 44 forming a second end of the shaft 18 passes through the bearing 40 and extends beyond this bearing 40 so as to allow the barrel to the needle 24 forming the direction indicator to be rigidly fixed to the pivot 44.
  • FIG. 3 a second variant of the first embodiment, equivalent to the first variant described using Figure 2.
  • a watch 51 seen from below in the absence of its background.
  • This watch 51 includes a clockwork movement 52 mounted in a casing circle 54.
  • the watch movement 52 is an electronic movement comprising in particular a motor 56 and a battery flap 58.
  • the stator 60 of the motor 56 and the battery (not shown) arranged in the flap 58 form magnetic masses, that is to say masses of low magnetic reluctance easily conducting a magnetic flux.
  • the cage 22 of the device 14 for indicating the direction of magnetic north, containing the permanent magnet (not visible in FIG. 3) of this device 14, is located in a relatively restricted region 62 of the lateral peripheral region 64 of the movement watchmaker 52.
  • the cage 22 is moved away from the magnetic masses of the watchmaking movement 52 and is located opposite the battery flap 58, intended to receive the battery necessary to power the watchmaking movement 52, relative to the central axis of the watch movement 52.
  • the permanent magnet of the device 14 for indicating the direction of magnetic north is distant from the power supply battery of the movement 52, this battery being one of the main magnetic elements disrupting the terrestrial magnetic flux passing through the watch 51.
  • the permanent magnet of the device 14 is located near magnetic masses of the watch movement 52, these magnetic masses and in particular their configuration then determine the orientation of the permanent magnet of the device 14. In the latter In this case, this device 14 would become totally ineffective in indicating the direction of magnetic north since the minimum energy position of the permanent magnet would be determined by the magnetic masses themselves.
  • the present invention solves this problem thanks to the arrangement of the device 14 for indicating magnetic north and its positioning in the watch 51 relative to the watch movement 52. In addition, the invention solves the problem of efficiency and sensitivity of the device 14 for indicating magnetic north without however increasing the thickness of the watch 51.
  • Figure 4 is partially shown a second embodiment of a watch according to the invention.
  • the magnetic north indication device 14 is arranged in the watch movement 72.
  • the shaft 18 of the device 14 on which the permanent magnet 16 is mounted is arranged between a first part 74 and a second part 76 of the watch movement frame 72.
  • the bearings 40 and 42 are arranged in two openings provided respectively for this purpose in the parts 74 and 76 of the watch movement 72.
  • the pivot 46 of the shaft 18 is supported on the counter-pivot 48 while the pivot 44 passes through the bearing 40 in the direction of the dial 26.
  • the axis 78 of the needle 24 forming the direction indicator of the device 14 is firmly fixed to the pivot 44.
  • the shaft 18 and the magnet 16 are therefore entirely included in the thickness of the timepiece movement 72.
  • the hand 24 is again arranged above the dial 26.
  • the direction of flow of the earth's magnetic flux in a region surrounding these magnetic masses is modified by the presence of these magnetic masses.
  • the disturbance in the direction of the magnetic axis of the permanent magnet caused by the presence of the magnetic masses varies depending on the relative position of the permanent magnet and these magnetic masses. Therefore, the direction defined by the magnetic axis of the permanent magnet of the magnetic north indication device has a variable deflection angle relative to the direction of magnetic north when the positioning of the permanent magnet relative to the magnetic masses varies in a frame of reference defined by the direction of terrestrial magnetic north.
  • FIGS. 5 and 6 the solution provided by the present invention to the above-mentioned problems will be described below.
  • Figure 5 is shown in top view the bipolar permanent magnet 16 and its magnetic axis 38, the shaft 18 on which the magnet 16 is mounted and the direction indicator 24 of the device for indicating the magnetic north of the earth according to the invention.
  • Figure 6 is shown schematically a top view of a watch according to the invention and in particular the arrangement of the dial 82 of this watch.
  • the axis of rotation 20 of the direction indicator 24 is located at the edge of the dial 82 and is aligned with the twelve o'clock position.
  • a positioning marker 84 formed by an arrow 86.
  • the longitudinal axis 86 of the direction indicator 24 is angularly offset by an angle ⁇ .
  • This angle ⁇ is determined precisely so that the direction indicator 24 has its longitudinal axis 86 aligned with the north-south direction of the undisturbed terrestrial magnetic field when this longitudinal axis 86 is aligned with the reference 84.
  • the value of the angle ⁇ need not be calculated theoretically.
  • the arrow 85 of the positioning mark 84 in the direction can be simply placed during the mounting of the direction indicator 24 north-south of the undisturbed Earth's magnetic field.
  • the needle 24 constituting the aforementioned direction indicator is mounted on the shaft 18 of the device 14 so that the longitudinal axis 86 of this needle 24 is aligned with the reference 84, that is to say so that this longitudinal axis 86 is oriented in the direction given by the arrow 85 of the positioning reference 84.
  • the positioning marker 84 can be formed by any means defining at least one point on which the direction indicator is likely to align. Since the direction indicator 24 rotates about its axis of rotation 20, a single positioning point makes it possible to define a given direction for the longitudinal axis 86 of the direction indicator 24. Thus, when the positioning mark defines a geometrical figure other than a point, it is expected that this geometrical figure has a general direction intercepting the axis of rotation 20.
  • the disturbance generated by the magnetic masses of the watch movement on the terrestrial magnetic flux, crossing the region in which the permanent magnet 16 of the device 14 is located, is corrected when the direction indicator 24 of device 14 is aligned with the positioning mark 84 provided in the watch according to the invention.
  • the direction indicator 24 when the direction indicator 24 does not have its longitudinal axis 86 aligned with the positioning mark 84, the direction indicator 24 no longer accurately indicates the direction of terrestrial magnetic north, all the more that the angular offset between the longitudinal axis 86 of the direction indicator 24 and the direction defined by the positioning mark 84 is large.
  • a graduation 88 has been provided on the dial 82 defining a magnetic declination scale.
  • the declination in a given place of the surface of the terrestrial globe corresponds to the geographical azimuth of magnetic north, that is to say is equal to the angle formed between the direction of geographic north and the direction of magnetic north.
  • the part of the graduation 88 situated to the right of the direction indicator 24 corresponds to negative magnetic variations, that is to say magnetic variations west W, while the part of the graduation 88 located to the left of this direction indicator 24 corresponds to positive magnetic variations, that is to say magnetic variations is E.
  • the graduation 88 is linear. However, there is provided in a preferred embodiment a graduation 88 arranged in such a way that the angle formed between the division corresponding to a zero magnetic declination and another division corresponding to a non-zero magnetic declination, relative to the axis of rotation 20 of the direction indicator 24, integrates the perturbation on the terrestrial magnetic flux flowing in the region of the permanent magnet when the watch movement comprises magnetic masses 60.
  • the angle ⁇ between the magnetic axis 38 of the permanent magnet 16 and the longitudinal axis 86 of the direction indicator has a zero value, and the graduation 88 allowing the magnetic declination to be taken into account is then linear.
  • two stops 90 and 91 are provided which serve to limit the travel of the direction indicator 24.
  • the axis of rotation 20 of the direction indicator 24 is located at the edge of the dial 82 of the watch and that the hand, constituting the direction indicator 24, is oriented in the direction of the center of the dial 82 when this hand is aligned with the arrow 85 of the positioning marker 84.
  • the arrangement of the device according to the invention allows a good reading of the direction of magnetic north using the direction indicator 24 while having the permanent magnet of the device 14 for indicating the terrestrial magnetic north situated on the edge of the watch according to the invention, that is to say in the lateral peripheral region of the watch movement included in this watch.
  • the direction indicator 24 is formed by a non-magnetic material. Therefore, the presence of this direction indicator 24 near magnetic masses of the watch movement does not disturb the accuracy and the sensitivity of the magnetic north indication device according to the invention.
  • FIGS. 7 to 9 a third embodiment of a watch according to the invention will be described below, used to follow a given direction.
  • Watch 94 includes a device 14 for indicating the magnetic earth north according to the invention.
  • Watch 94 is a wristwatch intended to be worn on the wrist of a user.
  • This watch 94 includes a dial 96 located inside a case 98.
  • the device 14 comprises a direction indicator 24 associated with a positioning mark 100 formed by an interval defined using two annular sectors.
  • a graduation 102 On the dial 96 is provided a graduation 102 forming at least partially a compass rose.
  • the axis 20 of the device 14 is positioned on the division corresponding to the indication of the direction of north.
  • the projection of the axis of rotation 20 on the dial 96 and the interval defining the positioning reference 100 are aligned on the north-south direction of the graduation 102.
  • the case 98 in which the dial 96 and the watch movement (not shown) of the watch 94 are arranged, is liable to undergo rotation around the central axis 104 relative to the strap 106 of the watch 94
  • the housing 98 is rotatably mounted on the support 110 fixedly connected to the strap 106.
  • the device allowing the rotation of the housing 98 relative to the support 110 comprises a toothed wheel integral with the housing 98 and at least a pawl for angular positioning of this wheel secured to the support 110.
  • Any other device known to those skilled in the art, in particular devices equivalent to the devices used for watches comprising a rotating bezel, can be used in the arrangement of watch 94 .
  • the graduation 102 comprises at least four divisions corresponding to the four cardinal points of the terrestrial globe.
  • the division indicating the direction of north being given by the positioning reference 100 and by the axis of rotation 20.
  • the watch 94 described in FIGS. 7 to 9 makes it possible to easily follow a course, that is to say a determined direction , when the watch is worn by a user.
  • the watch 94 can be used to follow a course.
  • the axis of rotation 20 of the device 14 is positioned angularly relative to the axis of rotation 104 of the housing 98 in a determined position.
  • this determined position corresponds to the twelve o'clock position of watch 94 relative to support 110.
  • a user wishes, on the other hand, to use watch 94 to follow a determined direction, for example the southwest direction, he will cause in rotation the case 98 of the watch 94 until the division 112 of the graduation 102 corresponding to the southwest direction is positioned angularly in the twelve o'clock position of the support 110 of the watch 94.
  • the user places his forearm 114 in front of the trunk of his body so that this forearm is substantially horizontal and the watch is located opposite of his head. Then, as shown in Figure 9, the user will rotate on itself until the direction indicator 24 is aligned with the positioning mark 100.
  • the direction determined that the user has chosen to follow corresponds to the direction given by the division 112 of the graduation 102 relatively to the center of this circular graduation which coincides with the axis of rotation 104 of the housing 98. This direction then corresponds to the natural running direction of the watch user 94.
  • the user will take care that the direction indicator 24 remains aligned with the positioning mark 100.
  • the user will take care that the direction indicator 24 is aligned with the division of this graduation corresponding to the magnetic variation of the place in which is the user of watch 94.
  • a third embodiment of a watch according to the invention intended to indicate the direction of a given place relative to at least one other given place.
  • Watch 120 according to this third embodiment comprises a housing 122 comprising a rotating bezel 124.
  • the two hands 126 and 127 allow an analog display of the time.
  • the watch 120 includes a device 14 for indicating the direction of the terrestrial magnetic north equivalent to those described above and the dial 128 again includes a reference position 125 associated with the direction indicator 24.
  • the watch 120 is arranged so as to allow a user to determine the direction of Mecca from a set of cities inscribed on the dial 128 and with which are associated angular references 130 defining a position angular in the plane of the dial 128 relative to the axis of rotation 132 of the rotating bezel 124.
  • the angle formed in the plane of the dial 128 between a given index 130, the axis of rotation 132 of the rotating bezel and the axis of rotation 20 of the direction indicator 24 corresponds to the magnetic azimuth between the direction of Mecca and the direction of magnetic north at the location defined by the city corresponding to the given angular reference 130.
  • the telescope 124 In order to correctly determine the direction of Mecca from a city inscribed on the dial 128, it is planned to rotate the telescope 124 until the reference 134 and the angular reference 130 of the city where the user is aligned with the projection on the dial 128 of the axis of rotation 132. Then, the watch 120 is rotated by the user until the direction indicator 24 is aligned with the reference 125 as was previously described. Once the direction indicator 24 aligned with the reference 125, the direction of Mecca corresponds to the direction defined by the reference 134 provided on the rotating bezel 124 and the axis of rotation 132 of this rotating bezel.
  • the housing 122 comprising the dial 128, the device 14 for indicating the terrestrial magnetic north (shown partially) and the watch movement (not shown) provided inside the case 122 are liable to be rotated relative to the strap (not shown) of watch 120.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
EP95111303A 1994-07-26 1995-07-19 Uhr mit einer den magnetischen Norden anzeigenden Vorrichtung Expired - Lifetime EP0694822B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2353/94 1994-07-26
CH02353/94A CH687496B5 (fr) 1994-07-26 1994-07-26 Montre comportant un dispositif d'indication du nord magnétique.

Publications (2)

Publication Number Publication Date
EP0694822A1 true EP0694822A1 (de) 1996-01-31
EP0694822B1 EP0694822B1 (de) 1998-10-07

Family

ID=4231807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111303A Expired - Lifetime EP0694822B1 (de) 1994-07-26 1995-07-19 Uhr mit einer den magnetischen Norden anzeigenden Vorrichtung

Country Status (9)

Country Link
US (1) US5550794A (de)
EP (1) EP0694822B1 (de)
JP (1) JP3604786B2 (de)
CN (1) CN1053749C (de)
CH (1) CH687496B5 (de)
DE (1) DE69505205T2 (de)
HK (1) HK1012728A1 (de)
SG (1) SG115318A1 (de)
TW (1) TW268109B (de)

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CH688460B5 (fr) * 1995-05-17 1998-04-15 Asulab Sa Dispositif servant à indiquer la direction d'un lieu géographique déterminé.
WO1997048025A1 (de) * 1996-06-10 1997-12-18 Asulab S.A. Tragbare präzisionsuhr mit zusatzfunktionen
CH691084A5 (fr) * 1997-04-04 2001-04-12 Asulab Sa Pièce d'horlogerie comprenant un récepteur GPS, destinée à indiquer la direction d'un endroit "but".
US6003714A (en) * 1998-08-11 1999-12-21 Buermann; Henry Compressed gas cylinder safety cap and valve seal retainer
US6754137B1 (en) * 1998-12-23 2004-06-22 Asulab S.A. Watch providing barometer or altimeter reading, and method for making same
ITPI990022A1 (it) * 1999-04-13 2000-10-13 Roberto Robba Sistema per individuare la posizione della citta' di la meccaattraverso l'utilizzo del sistema di posizione satellitare gps e
JP3872262B2 (ja) * 2000-01-25 2007-01-24 セイコーインスツル株式会社 電子方位計及び電子方位計付電子時計
JP2001281013A (ja) * 2000-03-30 2001-10-10 Denso Corp 指示計器
US7487043B2 (en) 2004-08-30 2009-02-03 Adams Phillip M Relative positioning system
DE602005022402D1 (de) * 2005-03-09 2010-09-02 Eta Sa Mft Horlogere Suisse Elektronische Uhr mit Kompassfunktion
DE602005008563D1 (de) * 2005-05-18 2008-09-11 Asulab Sa Vorrichtung und Verfahren um die Position mit einem GPS-Empfänger und einem Kompass zu bestimmen
EP2207011B1 (de) * 2009-01-12 2011-11-09 Samsung Electronics Co., Ltd. Verfahren zur Bereitstellung einer digitalen Kompassfunktion und darauf eingerichtetes tragbares Endgerät
CN104949671A (zh) * 2014-03-28 2015-09-30 联想(北京)有限公司 电子设备以及信息处理方法
CN103869685A (zh) * 2014-03-29 2014-06-18 福州小神龙表业技术研发有限公司 一种带有自由转动装饰件的钟表
USD756245S1 (en) * 2014-09-02 2016-05-17 Turlen Holding Sa Wristwatch without bracelet
JP6759631B2 (ja) * 2016-03-07 2020-09-23 セイコーエプソン株式会社 電子時計
JP6686601B2 (ja) * 2016-03-24 2020-04-22 カシオ計算機株式会社 方位表示装置、方位表示方法及びプログラム
JP6763216B2 (ja) * 2016-06-30 2020-09-30 カシオ計算機株式会社 情報表示装置、情報表示方法及びプログラム
JP7003732B2 (ja) * 2018-02-28 2022-01-21 セイコーエプソン株式会社 時計、および指針制御方法
CN111061991B (zh) * 2019-11-18 2023-08-25 飞亚达（集团）股份有限公司 一种快速确定城市的朝拜方向的方法和装置
CH717832A2 (fr) * 2020-09-09 2022-03-15 Swatch Group Res & Dev Ltd Dispositif fluidique annulaire avec fonction boussole magnétique.

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DE8306716U1 (de) 1983-03-09 1984-08-23 Diehl GmbH & Co, 8500 Nürnberg Uhr mit Kompaß

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BE469489A (de) *
CH17742A (fr) * 1898-10-20 1899-08-15 Pecaut Dubois Albert Mouvement de montre
CH274909A (fr) * 1948-09-13 1951-04-30 Schild Sa A Montre à boussole.
CH328782A (fr) * 1954-09-07 1958-03-31 Dumoulin Maurice Instrument d'orientation
CH324565A (fr) * 1956-01-19 1957-09-30 Uebelhardt Roger Montre-bracelet
FR2438861A1 (fr) * 1978-10-11 1980-05-09 Lavet Marius Perfectionnements apportes aux montres-bracelets electroniques
EP0048296A1 (de) * 1980-09-22 1982-03-31 Novistar S.A. Vorrichtung, die an einem bestimmten Ort die Richtung eines durch Mekka gehenden Grosskreises angibt
DE8306716U1 (de) 1983-03-09 1984-08-23 Diehl GmbH & Co, 8500 Nürnberg Uhr mit Kompaß

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Publication number Publication date
JPH0862352A (ja) 1996-03-08
CN1053749C (zh) 2000-06-21
EP0694822B1 (de) 1998-10-07
CH687496B5 (fr) 1997-06-30
CH687496GA3 (fr) 1996-12-31
DE69505205D1 (de) 1998-11-12
SG115318A1 (en) 2005-10-28
JP3604786B2 (ja) 2004-12-22
US5550794A (en) 1996-08-27
TW268109B (en) 1996-01-11
HK1012728A1 (en) 1999-08-06
DE69505205T2 (de) 1999-05-20
CN1127371A (zh) 1996-07-24

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