US3733810A - Timepiece with electronically designed digital read-out - Google Patents

Timepiece with electronically designed digital read-out Download PDF

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Publication number
US3733810A
US3733810A US00121251A US3733810DA US3733810A US 3733810 A US3733810 A US 3733810A US 00121251 A US00121251 A US 00121251A US 3733810D A US3733810D A US 3733810DA US 3733810 A US3733810 A US 3733810A
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United States
Prior art keywords
preselector
driving mechanism
advance
digital read
manipulation
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US00121251A
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English (en)
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P Girard
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Rolex SA
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Montres Rolex SA
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G5/00—Setting, i.e. correcting or changing, the time-indication
    • G04G5/04—Setting, i.e. correcting or changing, the time-indication by setting each of the displayed values, e.g. date, hour, independently
    • G04G5/043—Setting, i.e. correcting or changing, the time-indication by setting each of the displayed values, e.g. date, hour, independently using commutating devices for selecting the value, e.g. hours, minutes, seconds, to be corrected
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/001—Electromechanical switches for setting or display
    • G04C3/005—Multiple switches
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/10—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes
    • G04G9/105—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes provided with date indication

Definitions

  • ABSTRACT In a timepiece having an electronically designed read out, an improved means which makes it possible to manually operate and set at least part of the digital readout elements.
  • the setting means comprise a preselector capable of being set in different positions and a driving mechanism. Both the preselector and driving mechanism are arranged in such a manner that the position occupied by the preselector at the time that the driving mechanism is manipulated determines the element or elements of the digital read-out to be affected by the manipulation as well as the function accorded by the manipulation.
  • the present invention has to do with a timepiece with electronically designed digital read-out, equipped with means making it possible to manually operate at least part of the digital read-out elements.
  • the manual operation of the elements of digital readout in such a timepiece can be brought about in several ways.
  • timepieces with digital read-out for each element of digital read-out or for each group of readout elements, or possibly only for each one of some of these groups there is an individual means of manual control which, when set into operation, affects the corresponding read-out element or group of read-out elements.
  • This form of manual control or operation presents several disadvantages.
  • One of these disadvantages consists in that it requires as many external control elements as there are elements of digital read-out or groups of elements of digital read-out to be operated manually.
  • Another one of these disadvantages lies in the fact that the timepiece may accidentally get out of order as a result of an involuntary action on one of these control means.
  • the purpose of the present invention is to provide a timepiece with digital read-out of the type previously mentioned but not having the disadvantages stated.
  • the timepiece with electronically designed digital read-out equipped with means making it possible to manually operate at least part of the digital read-out elements
  • said means comprise a preselector which is capable of being placed in different positions and adriving mechanism both of which are arranged in such a manner that the position occupied by the preselector at the time when the driving mechanism is manipulated determines the element or elements of digital read-out affected by the manipulation of the driving mechanism, as well as the function according to which this element or these elements of digital read-out are affected by this manipulation.
  • FIG. 1 represents, in top plan view, a wrist watch with a rectangular shaped digital read-out
  • FIG. 2 shows the watch of FIG. 1 in bottom plan view
  • FIG. 3 schematically shows an annular preselector piece included in this watch
  • FIG. 4 shows, schematically and in partial section, the driving mechanism having the form of a winding rod working together with the preselector piece shown in FIG. 3;
  • FIG. 5 is a section taken along line V-V of FIG. 2 through the back of the watch carrying electric contact switching elements;
  • FIG. 6 is a partial plan view schematically showing the electric contact switching elements which are visible in section in FIG. 5;
  • FIG. 7 is an electrical block level schematic showing certain electronic circuits of the watch and illustrating the working together of the driving mechanism, preselector and electronic elements;
  • FIG. 8 is an electrical schematic similar to FIG. 7 and illustrates a particular operating case
  • FIG. 9. is a block diagram representing the essentials of the group of electronic circuits in the watch.
  • FIG. I which represents the wrist watch in top plan view
  • the watch case 1 has two rectangular windows in which there appear, respectively, a group of digits 2 having the information necessary to give the time (for example 12 hours 26 minutes and 48 seconds) and a group of digits 3 having the information which is necessary to give the day and the date (for example Monday 17 July).
  • FIG. 1 also shows a driving mechanism 4 which has an external shape and a side positioning similar to those of a winding crown mounted on a winding rod of an ordinary mechanical timepiece.
  • the watch could also be of an angular shape, or a round shape, and a design of identical type could also have to do with a watch in the form of a small clock, for example of the kind whose front area does not exceed approximately 25 square centimeters.
  • FIG. 2 shows the watch of FIG. 1 as seen from beneath.
  • a crown 5 carrying indications A, B, C etc., the center of this crown being occupied by a cap 6 which, at the same time it serves to hold the crown 5, constitutes the unscrewable cover of a housing for a miniature electric battery which provides the electric power for the operation of the watch.
  • the bottom of this watch also carries a marking or index 7 which constitutes the indicator opposite which the various indication A, B, C etc. carried by the crown 5 are placed according to the angular position imparted to the crown 5.
  • the crown 5 can be manipulated in the manner of a rotating button.
  • FIGS. 3 and 4 illustrate the mechanical operation of the crown 5, which constitutes a preselector 8, and of the driving mechanism 4.
  • FIG. 5 shows a preselector annular element 8 which is mounted underneath the crown 5 so that it can move solidly in rotation therewith.
  • This preselector element 8 has a number of notches equal to the number of indications (A, B, C etc.) carried by the crown 5.
  • One of the twelve notches shown in element 8 is deeper than the other notches.
  • FIG. 3 also shows that a flexible spring blade 17 causes the preselector element 8 to stop in well determined positions.
  • FIG. 4 shows the driving mechanism 4 which has an outer end in the form of a winding crown and a rod composed of various elements intended for establishing an electrical switching contact which operates when the driving mechanism 4 is pulled and pushed. These various elements of the driving mechanism which are intended for an electrical function will be examined later.
  • the rod of the driving mechanism has, at its extremity, a support element which works together with a lever 13, pivoted at 14, and which acts resiliently so as to tend to bias the driving mechanism 4 towards the exterior.
  • the rod of the driving mechanism also has a gouge by means of which the longitudinal movements of the driving mechanism are imparted to a square element 16 one of the wings of which (visible in FIG.
  • the driving mechanism can make its maximum entry inside of the watch and the screw thread channel 15 can be screwed into a corresponding screw thread channel presented by the watch case (not shown). In this position it will naturally be impossible to rotate the preselector element 8 and the crown 5 to which it is connected. If the crown is unscrewed from the driving mechanism, then the driving mechanism returns towards the exterior under the action of the resilient lever 13. It will then be possible to turn the crown 5 and the preselector element 8 which is connected to it in such a way as to bring opposite the square piece 16 one of the eleven other notches of the preselector element 8.
  • FIG. 5 represents a sectional view through the bottom of the watch taken along the line VV of FIG. 2.
  • the watch case 1 includes a primary bottom plate It: below which are found various elements which make up the watch, and in particular the electronic read-out elements which are not shown in FIG. 5.
  • the watch case 1 passes beyond the bottom plate la towards the rear and the preselector crown 5 is mounted in such a way as to make up the visible bottom of the watch.
  • At the center of the element, attached to the bottom plate 1a there is a cylindrical element 6a forming the case for the battery already mentioned in connection with FIG. 1.
  • the cover 6 is screwed onto the cylindrical element 6a and has an annular flange holding the preselector crown 5 in place.
  • the preselector crown 5 engages at its periphery into an annular groove in the watch case 1. Even though the watch is rectangular, it must be understood that the space represented in FIG. 5 above the bottom plate la is round.
  • FIG. 5 shows that the preselector crown 5 includes an inside bearing surface 5a around which various elements are arranged. These elements are first of all the preselector element 8, which can also be seen in FIG. 5 and which is forced around the bearing element 5a. Since the section of FIG. 5 is in the vertical direction with respect to FIG. 2, the entire group of the driving mechanism 4 with its various additional elements, and in particular the square element 16, is not shown in FIG. 5.
  • the bearing surface 5a carries an assembly 22 comprising first and second annular elements 22a and 22b of insulating material which are forced onto the preselector crown 5.
  • a resilient element 220 separates the two annular elements of insulating material so that the crown assembly 22 can move very slightly in the axial direction but is connected to the preselector crown 5 in rotation.
  • This crown assembly 22 carries, at only one place on its surface, a rubbing contact element 21 which establishes an electric contact between a contact ring 23 and one of a group of contact studs 18.
  • the contact ring 23 and the group of contact studs 18 are supported by a crown of insulating material 19 which is attached to the battery case 6a.
  • FIG. 6 presents a schematic plan view of this crown 19 together with the contact ring 23 and the group of studs 18.
  • the contact ring 23 is contacting one of the studs 18. This contact is intended for facilitating the electrical connection which is supposed to assure a connection with the contact ring 23.
  • a rotation of the crown assembly 22 causes the contact element 21 to subsequently establish an electrical contact between the contact ring 23 and each one of the studs 18. In the position where this contact element 21 is above the stud 18a already connected to the ring 23 no individual contact is established thus forming a zero position of the switch.
  • the respective angular position of the large notch of the preselector element 8, of the contact element 21, and of the stud 18a will be such that the contact element 21 ends up on the stud 18 which is connected to the ring 23 when the large notch of the preselector element 8 is opposite the square piece 16 (FIG. 4).
  • FIG. 4 shows that the rod of the driving mechanism is composed of a central rod 9 around which there are threaded two sockets 11 and 11a made of insulating material.
  • the socket 11 at its extremity which is close to the socket 11a, has a bearing surface of small diameter around which a socket 12 made of conducting material slides.
  • Three contact elements 15a, b, c are shown schematically and are actually formed of elastic conducting laminas which rest against the external diameter of the rod. In the position shown in FIG. 4, the square element 16 penetrates into the large notch of the preselector element 8 and the rod is driven to the maximum towards the inside of the watch.
  • the driving mechanism When the driving mechanism is released by unscrewing the crown from it, the rod returns completely towards the outside of the watch (that is to say towards the left in FIG. 4) and the conducting socket 12 opens an electrical contact between the contact elements 15a and 15b. At this time, with the driving mechanism towards the exterior, it is possible, if so desired,'to turn the preselector crown 5 in order to bring opposite the square element 16 another one of the notches of this preselector element. When the latter has assumed the desired position, the driving mechanism is depressed to a partial extent which is determined by the smallest depth of the notch into which the square'element 16 will penetrate.
  • This depth is such that at the time when the driving mechanism is pressed so as to make the square piece 16 penetrate into the bottom of the notch the conducting socket l2 ceases to establish an electrical contact between the contact elements 15a and 15b and then establishes an electrical contact between the contact elements 15b and 150.
  • the function which is then performed a function which is determined by the position of the preselector crown, a matter which will be examined further on
  • the elements of read-out are formed preferably of luminous numbers which themselves are formed of elements of composition of a minimum number of seven, but preferably of a greater number. It is evident that the read-out elements could also be formed in a different way, for example by means of elements operating on the basis ofa principle similar to that ofNixie tubes but under a voltage and with a power compatible with the low source of energy available. If a timepiece which is similar to the watch described but of a larger size were used, for example a small-sized clock or even a large-sized clock, the read-out could naturally be done through the intermediary of conventional optical electronic means or at least means which are known.
  • the watch which is shown in FIG. 1 is a watch which supplies the time broken down into 24 hours, that is to say that this watch in the middle of the afternoon, for example, shows 15:30 and not 3:30.
  • this watch it would also be possible to design this watch in a way that it would indicate the hours of the morning and the hours of the afternoon by never going past the indication of 12 hours 59 minutes and 59 seconds (as happens in the telling of time in the United States) or also by never going beyond 11 hours 59 minutes and 59 seconds (as is current practice in time telling in certain European countries).
  • the indication of the date is given by a first indication concerning the days of the week, a second indication concerning the day of the month, and a third indication concerning the particular month. In some cases it would be appropriate to reverse the order of indication of the month and of the day of the month, as is current practice in the Anglo-Saxon countries.
  • the digital indication of the day of the week and of the month can be done for the day of the week by indicating a maximum of two letters and for the months by indicating up to four letters, even though an indication of two letters adequately coded could also be sufficient if necessary.
  • the letters necessary to form the names of the days of the week and the names of the months would theoretically require a number of elements of composition much greater than the numbers, but this number is reduced by the fact that at a given place there is no need to be able to indicate all of the letters of the alphabet but only a certain number of them.
  • the composing of numbers or letters with the aid of elements of composition is a relatively well known technique into which it is not necessary to delve at this time.
  • the watch with digital electronic read-out in question is driven by a quartz oscillator and the variation in its daily operation is therefore extremely small.
  • the watch running behind or ahead it would be advantageous to have the possibility of gaining or losing just a few seconds. It is this possibility which will probably be used the most often. in certain cases it might also be necessary to make a correction of more than one minute and it would then naturally be advantageous to be able to act in effect on the minute indicator and not to have to make a correction which is 60 times longer than a correction involving the second indicator.
  • the watch being described here is an electronic watch and since it therefore has the possibility, which is lacking in mechanical watches, of advancing at a speed which is 100 times, 1,000 times or even 10,000 times greater than its normal speed of advance, it has been provided to bring about the advance which is sup posed to involve only the hours by sending to the input of the electronic divider forming the time information a signal having a frequency of approximately one thousand Hz, that is to say that approximately 3.6 seconds are necessary to make the digital information advance by 1 hour.
  • a signal having a frequency of approximately one thousand Hz that is to say that approximately 3.6 seconds are necessary to make the digital information advance by 1 hour.
  • Position E deals with normal operation, that is to say that the large notch of the preselector element 8 will be opposite the square piece 16 and that the crown of the driving mechanism can be screwed into the case. If the driving mechanism is released in this position, it will be possible to activate it any number of times without anything happening.
  • the crown of the driving mechanism is unscrewed and allowed to return as far as possible towards the exterior so as to release the rotating movement of the preselector crown 5; then the indicator 7 is brought to the desired marked position of the preselector crown S, that is to say, according to the particular case, the position D (stop), the position C (advance, second), the position B (advance minute), or the position A (advance, hour).
  • the driving mechanism 4 is depressed and from that instant on and right up to the time that the driving mechanism is allowed to return towards the outside'the advance of the digital information takes place at the speed which is selected by the preselector (or does not take place at all if the stop position has been selected).
  • the positions of the preselector situated on the other side of the position of normal operation (E) are reserved for various operations which are different from the time setting operations mentioned previously. They differ by the fact that there no longer is, as previously, an operation which lasts as long as the driving mechanism is pressed and which ceases immediately after the driving mechanism has been released, but now there is a unique operation which takes place each time that the driving mechanism is pressed, an identical unique second operation not being able to take place except as the result of a prior releasing of the driving mechanism followed by another pressing on it.
  • This necessity of assuring oneself first of all that the driving mechanism has actually been released prior to executing a second operation identical to a first operation already executed explains the necessity to arrange the contact 15a, b, c
  • the preselector When, after having been freed by unscrewing and releasing of the driving mechanism, the preselector has been placed in the F position a manipulation of the driving mechanism will cause a return to a fixed hour.
  • the procedure for this operation is the following: right from the time that the driving mechanism has been pressed (the preselector being in the F position) the digital read-out is brought to the indication hours 0 minutes 0 seconds (or possibly 12 hours 0 minutes 0 seconds in the case of US. type watches).
  • this method of setting the time can be repeated as often as desired, but it does not make any sense except when the releasing of the driving mechanism takes place at the exact moment when, for example, by means of the radio, a time signal is heard which corresponds to the preselected indication.
  • the decoding of this preselected time can be adjusted for example by means of a screw which is placed at one or another place so as to establish different possible connections inside of the watch.
  • the watch dealer who sells the watch can then, according to the customers wishes, select the read-out of fixed-time setting which is appropriate.
  • a manipulation of the driving mechanism will cause, respectively, an advance or a delay of one day in the indication of the day of the month.
  • a direct action is established on the electronic elements providing the read-out of the day of the month.
  • the first one of these operations in the J position of the preselector which makes it possible to advance the day of the month will be used in particular at the end of each month comprising less than 31 days.
  • the other operation (position K) is intended for rectifying possible errors such as the error which could be committed by thinking for example that the month of October only has 30 days and by causing the indicator of the day of the month to jump from October 30 to November 1 although the next day is actually the 31st of October.
  • each manipulation of the driving mechanism causes a one step advance in the indication of the day of the week. This possibility would not need to be used in practice except as the result of an interruption in operation of more than a day in the watch and this is one of the reasons why the corresponding position is one of the last positions of the preselector. No position for bringing back by one day of the week has been provided for since a bringing back of one day can always be done by advancing by six days (six successive manipulations of the driving mechanism while the preselector is situated in the L position).
  • a manipulation of the driving mechanism causes an advance of one step in the month indication. Normally this operation is not performed except in the case when the watch has not been working for a long period of time, that is to say that this would in all probability be the operation which is used the least often. This is the reason why it has the last position of the preselector. Similarly to what has been said for the days of the week, no possibility for a backing up of a month has been provided for, since a backing up of 1 month can always be done by advancing 11 months.
  • the preselector composed of the crown 5 and of the elements which it supports can carry out a complete turn so that starting from the M position it would also be possible to return to the position of normal operation (E) by passing through the positions A, B, C, D instead of bypassing through the positions L, K, J, H, G, F.
  • a watch could also be equipped with either positions of the type A, B, C, D, or positions of the type F, G, L, M, in an independent manner. It could also provide only part of the positions described for each one of these two types.
  • timepieces described above within the framework of a wristwatch could also be suitable for other types of watches, as well as for small clocks, even for large clocks (in this last case the preselector would be located preferably, however, somewhere else than the back of the clock).
  • FIGS. 7, 8 and 9 illustrate the way in which these electronic circuits could be made up.
  • FIG. 7 shows a schematic working together with the switch composed of the contacts 15a, 15b, and 150 and the socket 12. It can be seen that this scale is composed of two inverted OR gates connected so as to form a scale.
  • the driving mechanism 4 is released towards the outside and it can be seen that, by means of the contact 15a 15b a positive voltage is imparted onto the input of a gate.
  • This gate is also connected by a resistance to the source so that it is negative when the contact 15 does not send a positive voltage there.
  • a second input of each gate is connected to the output of each gate.
  • the gate which receives a positive voltage will have a negative output (since it is an inverted OR gate) so that the input of the other gate connected to its output will receive a negative voltage. Since the other input of the other gate also receives a negative voltage the output of the other gate will be positive, the potential of this positive output being fed to the input of the first gate which would thus be maintained in the state where its output is negative even if the contact 15b, 15a is broken. Thus, the point which is marked by a W in FIG. 7 receives a negative voltage in that position. At the moment that one presses on the driving mechanism 4 and the socket 12 breaks the contact 15a, 15b the point W retains its negative voltage.
  • FIG. 7 there is a group of three AND gates each one of which has an input connected to the output W of the first inverted OR gate and each one of which has another input connected to one of the studs 18 mentioned in conjunction with FIGS. 5 and 6.
  • R, S, T the three AND gates R, S, T, but eleven similar gates.
  • FIG. 7 Owing to the fact that a positive tension is fed to the ring contact 23 (FIGS.
  • the FIG. 8 shows, by way of example, how the frequency of approximately 1,000 Hz is fed to the input of the divider to achieve the rapid advance serving to bring the read-out of the time at the desired position.
  • the frequency which is used here is a frequency of 1,024 I-Iz.
  • the frequency of 1 Hz which is necessary to normally control the watch is obtained by successive binary divisions so that 10 binary stages above the output 1 Hz have a frequency of 1,024 Hz which is very easy to use.
  • gate U is connected in a manner which is similar to the gates R, S, T, but which, instead of being a simple AND gate, is an inverted OR gate. This means that the output of the gate U will always be positive ex cept when the conditions are present which would make its output positive if it is a question of a noninverted AND gate.
  • the output of this inverted AND gate U is connected to an input of an inverted OR gate the other input of which is connected to the frequency source of 1,024 Hz.
  • the output of this inverted OR gate will always have a negative voltage when the potential is positive at the output of the gate U, that is to say in all of the cases when the conditions are not present which are needed to throw this gate U into gear, whereas, when these conditions have been fulfilled and the output of the gate U is negative, the output of the inverted OR gate will become alternately positive and negative at the pace of the 1,024 Hz frequency which is connected to its other input.
  • a frequency of 1,024 Hz will therefore not be fed to the input of the divider (which will be examined further on) unless the stud 18 corresponding to the gate U has received a positive voltage from the ring 23, that is to say when the preselection crown (or the preselector) is in the A position and that simultaneously the driving mechanism 4 has been pressed so as to enable a positive voltage to pass through the point W.
  • the frequency of 1,024 Hz will not reach the input of the divider, but, according to the case, it will be another frequency, for example 64 Hz or 2 Hz which will reach the input of the divider.
  • the frequency which reaches the input of the divider under normal operation that is to say the frequency of 1 Hz exactly will be connected permanently to the input of this divider except in the case where the driving mechanism is pressed into the stop position (B) of the preselector.
  • an electronic device is used which is similar to the one shown in FIG. 8, but which has, instead of and in the place of the inverted AND gate U, a simple, therefore non-inverted, AND gate.
  • FIG. 9 shows, in the form of a block diagram, all of the circuits controlling the digital read-out of the watch.
  • the driving mechanism 4 with its contacts a, b, c and its scale with two inverted OR gates previously mentioned.
  • the selector with its 12 studs 18 one of which is connected to the ring 23.
  • the main electronic logic, onto which there jointly act the preselector and the driving mechanism, is represented by an LP block which, in addition to the order which it receives from the driving mechanism and from the preselector, receives from a frequency divider four signals having a frequency of 1 Hz, 2 Hz, 64 Hz and 1,024 Hz, respectively.
  • This logic block LP feeds the input of a divider and also feeds five connections h, m, p, q, and r which connect the logic to certain particular places of the counting and dividing circuits which establish the digital read-out of the watch.
  • the four frequencies of 1 Hz, 2 Hz, 64 Hz and 1.024 Hz are obtained from a quartz oscillator through a divider (Div) comprising a series of binary stages.
  • the frequency of the quartz oscillator will be 1,024 Hz or a multiple on the order 2' of 1,024 Hz.
  • One connection feeds a frequency of 4,096 Hz from the divider.
  • These connections shown by dotted lines are optional and the need for them will depend, as will be seen, on the way in which the setting of fixed time is done.
  • the ordinary output of the LP logic supplies, under normal operation, a frequency of 1 Hz which is applied to the input of a counter-divider-decoder stage 51 operating with a cycle of 10'and which is arranged first of all to count module 10, the pulses which it re ceives at the input, secondly to supply at its output a pulse each time that it receives 10 input pulses, that is to say to perform a division by ten, and thirdly to decode the states of the internal counters in such a way as to supply for each one of the 10 combined states possible the potentials which are desired to cause to appear the read-out of the corresponding Arabic numeral in accordance with the principle of composed read-out previously mentioned.
  • the output of the counter-divider-decoder 57 supplying the readout of the tens of minutes provides a pulse every 60 minutes, that is to say every hour, to a group of counters-dividers-decoders 59, 61 arranged to establish a cycle having 12 or 24 positions, according to whether the watch is supposed to indicate 12 hours or 24 hours. It would be possible to achieve the stage of the hours by means of a single counter with 12 or with 24 positions.
  • the six counter-divider-decoder stages 51, 53, 55, 57, 59 and 61 shown in the form of blocks in the top part of FIG. 9 permit the digital read-out to advance so that each second the read-out of the units of seconds advances by one step.
  • the bottom part of FIG. 9 shows the sequence of the electronic group supplying the read-out of the information on the day of the month, the days of the week and the months.
  • Each cycle of 24 hours of the indication of the hours supplies a pulse to a connection n and it reaches, on the one hand, a counter-divider-decoder module 7 stage 63 which controls the posting of the days of the week and, on the other hand, a counter-divider-decoder stage 65 module 10 equipped to supply the posting of the units of the day of the month.
  • This latter counter-dividerdecoder module 10 stage 65 is connected to another counter-divider-decoder module 4 stage 67 equipped so as to supply the indication of the tens of the days of the month, it being understood that means (looping), not shown, provides the reduction of the theoretical cycle of 40 to an actual cycle of 31 corresponding to the 31 days of the month.
  • a logic circuit 69 Connected to the two counter-divider-decoders 65, 67 of the units and of the tens of the month there is a logic circuit 69. Its role is to detect the passage of the day of the month from 31 (or from 30 or from 29 or from 28) to 01 in order to then cause the indication of the months to advance by one step. Each time that this is necessary this logic supplies a pulse to a counterdivider-decoder module 12 stage 71 arranged to supply the digital read-out of the twelve months of the year.
  • the first one is the most perfect variant mentioned above in which all of the counters, except for the counters of the minutes and of the seconds, are reversible (can move backwards) and in which the carrying forward of the hours onto the days of the month and onto the days of the week and of the days of the month onto the months is also done in a reversible manner.
  • the principal logic circuit which conditions the manual control operations is arranged in such a way that at the time of a manual command all of the carrying forward operations are cut off so that, for example, if, by means of the advance of one hour for a time zone, one has made the indication pass from 2300 hours to 1 hour (1 oclock) the day of the week and the day of the month are not automatically affected and can be placed manually into the desired position.
  • the user knows that after each manual correction the subsequent indications do not follow, so that he will know that it is necessary to also correct them manually both when the deadline of midnight has been exceeded in the forward direction and when the deadline of midnight has been exceeded in the backward direction.
  • This logic will be arranged, for example, in such a way that it transmits a pulse at the time of the passing of the days of the month (the date of the month) to the position 01, on the condition, however, that since the last pulse transmitted for the advance of the months the counter of the days of the month has passed, for example, by the position 20, which could have not have occurred at the time of the correction of an error or during the passing of a time zone making the day of the month go back from 1 to 31, in which cases there is the risk of encountering disturbances owing to the fact that two successive pulses would be sent to the counter of the months.
  • the first one which corresponds to what has been said at the time of the functional explanation of the operation of resetting to a fixed time, consists in transmitting to the input of the counter-decoder of the minutes a frequency of 4,096 Hz and to decode the passage of the indication by the preselected position.
  • This case would correspond in the figure to the connections drawn in by dashes, in assuming that the connection r which connects the principal logic LP to the countersdividers-decoders of the minutes, of the tens of minutes, of the hours and of the tens of hours constitutes the connection of decoding, the decoder itself being assumed as surrounded by the LP logic.
  • a counter-divider-decoder generally has an additional input for putting back to O. The putting back to in question, therefore, if necessary, is done by the logic by using this particular input of setting back to O. The particular connection necessary for this putting back to 0 is not shown in the figure.
  • Another possibility which does not necessitate the utilization of a frequency of 4,096 Hz consists in sending a potential from the principal logic LP through the intermediary of the connection r. This potential forces each one of the four counters of the minutes, of the tens of minutes, of the hours and of the tens of hours to get into a well determined position which could also be selected by switching of wiring inside of the watch which could be done, for example, with the aid of detachable screws.
  • the LP logic Upon the command from the driving mechanism or from the preselector the LP logic carries out the advance or the bringing back ofa complete hour (the passage of time zones) by sending a pulse for advancing or bringing back, through the intermediary of the connection h, to the counter-divider-decoder of the units of hours which, as we have seen, should to all advantages be of the reversible-operation type. If this counterdivider-decoder were not of the reversible-operation type then the principal logic could act by sending it a series of 23 (or, if necessary,! 1) pulses, which would result in making the hours advance by 23 (or by l l) successive steps.
  • the operation of going ahead by one day or going behind by one day is done in a manner which is similar to the operation of going ahead or going behind by 1 hour by sending an appropriate pulse from the LP logic, through the intermediary of the connection m, to the counter-divider-decoder of the units of the days of the month.
  • An electronically operated timepiece having a plurality of digital read-out elements, and comprising means to selectively manually operate at least some of the digital read-out elements, said means comprising a preselector capable of being placed in different rotational positions and a driving mechanism, said preselector comprising a rotatable element mounted on the side of the timepiece opposite the face and accessible externally to be rotated to different angular positions corresponding to various settings of the preselector, and said driving mechanism comprising a rod which penetrates into the time piece, said rod being arranged to be manipulated to change its depth of penetration into the timepiece, both said preselector and driving mechanism being arranged in such a manner that the position occupied by the preselector at the time that the driving mechanism is manipulated determines which digital read-out element is to be affected by the manipulation of the driving mechanism, as well as the function actuation imparted to this element, said timepiece further comprising an arrangement of said preselector such that said rotatable element works together'with said driving mechanism in such a way that in the
  • a timepiece accordingto claim 3 wherein the periphery of said crown shaped rotatable element is proportioned and mounted on the housing of the timepiece in such a way as to overlap at least one of the sides of the housing so as to be able to be turned even when said timepiece is placed on the wrist of its wearer.
  • An electronically operated timepiece having a plurality of digital read-out elements, and comprising means to selectively manually operate at least some of the digital read-out elements, said means comprising a preselector capable of being placed in different rotational positions and a driving mechanism, both said preselector and driving mechanism being arranged in such a manner that the position occupied by the preselector at the time that the driving mechanism is manipulated determines which digital read-out element is to be affected by the manipulation of the driving mechanism, as well as the function actuation imparted to this element, said preselector further having a position of normal operation wherein the manipulation of the driving mechanism has no effect on the positioning of said digital read-out elements.
  • said preselector has a position of accelerated advance in which the manipulation of said driving mechanism makes the digital read-out elements advance at a speed such that the hour indicated advances by one hour in less than five seconds.
  • a timepiece according to claim 7, wherein said 7 preselector has sequentially following the normal position at least four adjacent operating positions which are a position in which the manipulation of said driving mechanism stops the advance of the digital read-out elements; a position in which the manipulation of the driving mechanism makes the digital read-out elements advance at a speed which is twice that of normal operation; a position in which the manipulation of the driving mechanism makes the digital read-out elements advance at a speed such that an advance of one minute is brought about during a period of between ahalf a second and 5 seconds; and aposition in which the manipulation of the driving mechanism makes the digital read-out elements advance at a speed such that an advance of 1 hour is brought about in less than 5 seconds.
  • said preselector further includes a position in which the manipulation of the driving mechanism causes an advance of the digital read-out elements which is exactly equal to 1 hour.
  • said digital read-out elements indicating the calendar date comprise digital read-out elements for the days of the week, said preselector including a further position in which the manipulation of said driving mechanism causes said digital read-out elements to advance by one day of the week.
  • a timepiece according to claim 19, wherein said positions of the preselector are broken down, starting with the position of normal operation according to an order such that there are successively presented: the positionof normal operation; a position of resetting to a predetermined fixed time; a position of advance by 1 hour; a position of setting back by 1 hour; a position of advance by one day of the month; a position of setting back by one day of the month; a position of advance by one month; and a position of advance by one day of the week.
  • An electronically operated timepiece having a plurality of digital read-out elements, and comprising means to selectively manually operate at least some of the digital read-out elements, said means comprising a preselector capable of being placed in different rotational positions and a driving mechanism, both said preselector and driving mechanism being arranged in such a manner that the position occupied by the preselector at the time that the driving mechanism is manipulated determines which digital read-out element is to be affected by the manipulation of the driving mechanism, as well as the function actuation imparted to this element, further comprising electronic circuits operatively connected to control said digital read-out elements, said circuits comprising successive countersdividers-decoders stages having an input, means feeding a l Hz signal to said input at least in the absence of a manipulation ordering an accelerated advance or a stopping of the digital read-out'elements, the countersdividers-decoders stages being arranged to actuate successively during the course of their operation: first digital read-out elements numbered from 0 to 9 for
  • a timepiece according to claim 22, further comprising logic circuits arranged to carry out accelerated advance of said digital read-out elements by introducing into the first counter-divider-decoder a frequency which is higher than 1 Hz, this higher frequency being 2 Hz for double-speed operation, 64 Hz for the advance of 1 minute during a period between a half a second and 5 seconds, and 1,024 Hz for the advance of 1 hour in less than 5 seconds.
  • a timepiece further comprising a frequency generating source of n-1,024 Hz, where n is an integer, said frequency generating source being connected to feed to the input of the first counter-divider-decoder, a divider with successive binary stages provided to reduce this frequency to the value of 1 Hz fed to said input duringnormal operation, and to supply frequencies of 2 Hz, 64 Hz, and 1,024 Hz, respectively, fed to the input for the various positions of accelerated advance.
  • a timepiece wherein the counters-dividers-decoders stages supplying the digital read-out elements for the hours, the days of the month, the days of the week and the months, are all of reversible operation, further comprising electrical connection means between the reversible counters-dividersdecoders stages of the hours and those of the days of the month, between the reversible counters-dividersdecoders stages of the hours and those of the days of the week, and between the reversible countersdividers-decoders stages of the days of the month and those of the months, said electrical connection means being established in such a way that a setting back manipulation of the driving mechanism and preselector which drives back a counters-dividers-decoders stage from the first position of a cycle to the last position of the preceding cycle causes the next counters-dividersdecoders stage to execute a backwards operation.
  • a timepiece according to claim 23, further comprising logic circuits arranged to supply, at the time of a manipulation of the driving mechanism when the preselector is in a predetermined position, at least one pulse to the input of a counters-dividers-decoders stage selected as a function of the position of the preselector, said logic circuits being further arranged to cut off the carry pulse from one counters-dividers-decoders stage to the next one.

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  • General Physics & Mathematics (AREA)
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US00121251A 1970-03-06 1971-03-05 Timepiece with electronically designed digital read-out Expired - Lifetime US3733810A (en)

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Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810356A (en) * 1972-04-17 1974-05-14 Suwa Seikosha Kk Time correcting apparatus for an electronic timepiece
US3841081A (en) * 1972-07-10 1974-10-15 Seiko Instr & Electronics Electronic watch with a time display correcting device
US3855780A (en) * 1972-03-15 1974-12-24 Casio Computer Co Ltd Electronic clock device
US3866406A (en) * 1973-02-01 1975-02-18 Time Computer Solid state electronic wristwatch
US3871168A (en) * 1971-08-27 1975-03-18 Longines Montres Comp D Electronic circuit for correction of the time display on an electronic timepiece
US3884033A (en) * 1973-10-17 1975-05-20 American Micro Syst Switch for electronic watch
US3886726A (en) * 1972-06-19 1975-06-03 Texas Instruments Inc Electronic time keeping system
US3889460A (en) * 1972-06-19 1975-06-17 Suwa Seikosha Kk Method and apparatus for correcting time in an electronic wristwatch
US3889458A (en) * 1972-03-15 1975-06-17 Casio Computer Co Ltd Electronic clock devices
US3925978A (en) * 1972-07-31 1975-12-16 Suwa Seikosha Kk Time correcting arrangement for electronic wrist watches
US3925977A (en) * 1972-05-02 1975-12-16 Suwa Seikosha Kk Display system for showing the days of the week in an electrical timepiece
US3934401A (en) * 1973-10-17 1976-01-27 American Microsystems, Inc. Switch for electronic watch
US3935700A (en) * 1973-11-06 1976-02-03 Bulova Watch Company, Inc. Switching mechanism for electronic watch electro-optic display
US3939641A (en) * 1973-07-31 1976-02-24 Kabushiki Kaisha Suwa Seikosha Electronic circuit for individually correcting each digit of time displayed
US3945190A (en) * 1973-06-28 1976-03-23 Citizen Watch Co., Ltd. Switch mechanism for electronic timepiece
US3962861A (en) * 1973-01-02 1976-06-15 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Apparatus for determining and lastingly showing the time at which an event occurs
US3994124A (en) * 1974-05-01 1976-11-30 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US3998046A (en) * 1972-06-12 1976-12-21 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US4001553A (en) * 1975-09-17 1977-01-04 Rockwell International Corporation Counter arrangement and associated test circuit for an electronic timing device
US4028879A (en) * 1974-07-26 1977-06-14 Eurosil G.M.B.H. Switching arrangement for setting time-measuring apparatus
US4030283A (en) * 1974-03-25 1977-06-21 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Electrically driven time piece with means for effecting a precise setting of time
USRE29327E (en) * 1972-06-19 1977-08-02 Kabushiki Kaisha Suwa Seikosha Method and apparatus for correcting time in an electronic wristwatch
US4040248A (en) * 1974-10-11 1977-08-09 Ebauches S.A. Alarm electric watch
US4094136A (en) * 1975-12-24 1978-06-13 Kabushiki Kaisha Suwa Seikosha Electronic timepiece inspection circuit
USRE29720E (en) * 1972-04-17 1978-08-08 Kabushiki Kaisha Suwa Seikosha Time correcting apparatus for an electronic timepiece
US4133170A (en) * 1975-04-30 1979-01-09 Casio Computer Co., Ltd. Global timepiece
US4145617A (en) * 1977-07-25 1979-03-20 Minnesota Mining And Manufacturing Company Control circuit for providing time selected application of A.C. power
US4182113A (en) * 1972-04-21 1980-01-08 Casio Computer Co., Ltd. Electronic time keeping device with time-shared timing indicator
US4211067A (en) * 1977-04-22 1980-07-08 Kabushiki Kaisha Seikosha Time adjusting device for electronic timepiece
US4232510A (en) * 1974-09-25 1980-11-11 Citizen Watch Co., Ltd. Timepiece
FR2495349A1 (fr) * 1980-12-02 1982-06-04 Dodane Precia Gete Montres Systeme de commande d'une montre multi-fonctions, telle qu'une montre de bord d'un vehicule notamment d'un avion, et procede de maniement d'un tel systeme
US4348753A (en) * 1976-12-22 1982-09-07 Firma D I E H L Electro-mechanical pulse generator
US4444511A (en) * 1980-08-07 1984-04-24 Seiko Koki Kabushiki Kaisha Mode switching device in an electronic timepiece
US4651147A (en) * 1982-11-30 1987-03-17 Ab Electrolux Device for setting a numeric display
EP0427566A2 (en) * 1989-11-10 1991-05-15 Seiko Instruments Inc. Multifunctional electronic timepiece

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Publication number Priority date Publication date Assignee Title
JPS5223590B2 (sv) * 1971-09-27 1977-06-25
GB1391637A (en) * 1971-12-27 1975-04-23 Suwa Seikosha Kk Electronic timepieces and electronic calculators
JPS5219789B2 (sv) * 1971-12-29 1977-05-30
GB1391235A (en) * 1972-01-22 1975-04-16 Suwa Seikosha Kk Digital wrist watch
FR2324040A1 (fr) * 1975-03-19 1977-04-08 Cetehor Montre a affichage numerique
DE2628794C3 (de) * 1976-06-26 1985-07-18 Diehl GmbH & Co, 8500 Nürnberg Stelleinrichtung für eine elektronische Digitalanzeige
DE2628899C2 (de) * 1976-06-26 1986-02-20 Diehl GmbH & Co, 8500 Nürnberg Elektronische Uhr
JPS6030914B2 (ja) * 1975-11-04 1985-07-19 セイコーインスツルメンツ株式会社 電子時計
DE2726383C2 (de) * 1977-06-10 1985-07-18 Diehl GmbH & Co, 8500 Nürnberg Elektromechanische Stelleinrichtung für eine elektronische Digitalanzeige
DE2731970C3 (de) * 1977-07-15 1987-04-16 Diehl GmbH & Co, 8500 Nürnberg Ansteueranordnung für das Anzeigefeld einer elektronischen Herdschaltuhr
JPS54127359A (en) * 1978-03-25 1979-10-03 Sharp Corp Voice watch
DE2828285C3 (de) * 1978-06-28 1982-06-09 Diehl GmbH & Co, 8500 Nürnberg Verfahren und Vorrichtung zur Erzeugung und Verarbeitung elektrischer Impulse
US4344161A (en) * 1979-02-09 1982-08-10 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
DE2922621C2 (de) * 1979-06-02 1985-10-31 Braun Ag, 6000 Frankfurt Elektronische Uhr mit Weckeinrichtung
CH631318B (fr) * 1980-02-18 Ebauches Electroniques Sa Dispositif de commande des corrections d'un affichage de temps.

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871168A (en) * 1971-08-27 1975-03-18 Longines Montres Comp D Electronic circuit for correction of the time display on an electronic timepiece
US3855780A (en) * 1972-03-15 1974-12-24 Casio Computer Co Ltd Electronic clock device
US3889458A (en) * 1972-03-15 1975-06-17 Casio Computer Co Ltd Electronic clock devices
USRE29720E (en) * 1972-04-17 1978-08-08 Kabushiki Kaisha Suwa Seikosha Time correcting apparatus for an electronic timepiece
US3810356A (en) * 1972-04-17 1974-05-14 Suwa Seikosha Kk Time correcting apparatus for an electronic timepiece
US4182113A (en) * 1972-04-21 1980-01-08 Casio Computer Co., Ltd. Electronic time keeping device with time-shared timing indicator
US3925977A (en) * 1972-05-02 1975-12-16 Suwa Seikosha Kk Display system for showing the days of the week in an electrical timepiece
US3998046A (en) * 1972-06-12 1976-12-21 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US3886726A (en) * 1972-06-19 1975-06-03 Texas Instruments Inc Electronic time keeping system
US3889460A (en) * 1972-06-19 1975-06-17 Suwa Seikosha Kk Method and apparatus for correcting time in an electronic wristwatch
USRE29327E (en) * 1972-06-19 1977-08-02 Kabushiki Kaisha Suwa Seikosha Method and apparatus for correcting time in an electronic wristwatch
US3841081A (en) * 1972-07-10 1974-10-15 Seiko Instr & Electronics Electronic watch with a time display correcting device
US3925978A (en) * 1972-07-31 1975-12-16 Suwa Seikosha Kk Time correcting arrangement for electronic wrist watches
US3962861A (en) * 1973-01-02 1976-06-15 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Apparatus for determining and lastingly showing the time at which an event occurs
US3866406A (en) * 1973-02-01 1975-02-18 Time Computer Solid state electronic wristwatch
US3945190A (en) * 1973-06-28 1976-03-23 Citizen Watch Co., Ltd. Switch mechanism for electronic timepiece
US3939641A (en) * 1973-07-31 1976-02-24 Kabushiki Kaisha Suwa Seikosha Electronic circuit for individually correcting each digit of time displayed
US3934401A (en) * 1973-10-17 1976-01-27 American Microsystems, Inc. Switch for electronic watch
US3884033A (en) * 1973-10-17 1975-05-20 American Micro Syst Switch for electronic watch
US3935700A (en) * 1973-11-06 1976-02-03 Bulova Watch Company, Inc. Switching mechanism for electronic watch electro-optic display
US4030283A (en) * 1974-03-25 1977-06-21 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Electrically driven time piece with means for effecting a precise setting of time
US3994124A (en) * 1974-05-01 1976-11-30 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US4028879A (en) * 1974-07-26 1977-06-14 Eurosil G.M.B.H. Switching arrangement for setting time-measuring apparatus
US4232510A (en) * 1974-09-25 1980-11-11 Citizen Watch Co., Ltd. Timepiece
US4040248A (en) * 1974-10-11 1977-08-09 Ebauches S.A. Alarm electric watch
US4133170A (en) * 1975-04-30 1979-01-09 Casio Computer Co., Ltd. Global timepiece
US4001553A (en) * 1975-09-17 1977-01-04 Rockwell International Corporation Counter arrangement and associated test circuit for an electronic timing device
US4094136A (en) * 1975-12-24 1978-06-13 Kabushiki Kaisha Suwa Seikosha Electronic timepiece inspection circuit
US4348753A (en) * 1976-12-22 1982-09-07 Firma D I E H L Electro-mechanical pulse generator
US4211067A (en) * 1977-04-22 1980-07-08 Kabushiki Kaisha Seikosha Time adjusting device for electronic timepiece
US4145617A (en) * 1977-07-25 1979-03-20 Minnesota Mining And Manufacturing Company Control circuit for providing time selected application of A.C. power
US4444511A (en) * 1980-08-07 1984-04-24 Seiko Koki Kabushiki Kaisha Mode switching device in an electronic timepiece
FR2495349A1 (fr) * 1980-12-02 1982-06-04 Dodane Precia Gete Montres Systeme de commande d'une montre multi-fonctions, telle qu'une montre de bord d'un vehicule notamment d'un avion, et procede de maniement d'un tel systeme
US4651147A (en) * 1982-11-30 1987-03-17 Ab Electrolux Device for setting a numeric display
EP0427566A2 (en) * 1989-11-10 1991-05-15 Seiko Instruments Inc. Multifunctional electronic timepiece
EP0427566A3 (en) * 1989-11-10 1991-12-18 Seiko Instruments Inc. Multifunctional electronic timepiece
US5377168A (en) * 1989-11-10 1994-12-27 Seiko Instruments Inc. Multifunctional electronic timepiece

Also Published As

Publication number Publication date
DE2107433A1 (de) 1971-09-16
FR2081742A7 (sv) 1971-12-10
FR2081742B3 (sv) 1973-05-11
DE2107433C3 (de) 1980-04-10
CH333770A4 (sv) 1973-01-31
DE2107433B2 (de) 1977-09-08
JPS4930474B1 (sv) 1974-08-13
CH569320B5 (sv) 1975-11-14

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