EP0553722A2 - Petite montre-radio autonome à affichage autonome, en particulier montre radio bracelet - Google Patents

Petite montre-radio autonome à affichage autonome, en particulier montre radio bracelet Download PDF

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Publication number
EP0553722A2
EP0553722A2 EP93100939A EP93100939A EP0553722A2 EP 0553722 A2 EP0553722 A2 EP 0553722A2 EP 93100939 A EP93100939 A EP 93100939A EP 93100939 A EP93100939 A EP 93100939A EP 0553722 A2 EP0553722 A2 EP 0553722A2
Authority
EP
European Patent Office
Prior art keywords
time
radio
receiver
radio clock
display
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.)
Withdrawn
Application number
EP93100939A
Other languages
German (de)
English (en)
Other versions
EP0553722A3 (en
Inventor
Wolfgang Ganter
Peter Meyer
Holger Rudolph
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.)
Junghans Uhren GmbH
Original Assignee
Junghans Uhren GmbH
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 Junghans Uhren GmbH filed Critical Junghans Uhren GmbH
Publication of EP0553722A2 publication Critical patent/EP0553722A2/fr
Publication of EP0553722A3 publication Critical patent/EP0553722A3/de
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time-pieces
    • G04C10/04—Arrangements of electric power supplies in time-pieces with means for indicating the condition of the power supply
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0076—Visual time or date indication means in which the time in another time-zone or in another city can be displayed at will

Definitions

  • a generic radio-controlled watch is known from EP 0 455 183 A2 and came onto the market as the world's first analog-displaying radio-controlled wristwatch JUNGHANS MEGA. In terms of equipment, it is a hybrid watch with an electromechanical pointer time display and an electro-optical additional display for time-derived variables and operating aid displays such as the need to change the battery.
  • the quality of the received and demodulated pulses of the time telegram to be decoded can be illustrated by a pointer movement, as described in more detail in EP-OS 0 180 155, in which the demodulated receive pulses are temporarily used to continue the movement of at least one pointer: if this pointer not progressing essentially in the regular second rhythm, but jumping irregularly, then no undisturbed telegram of the current coded absolute time information can be received due to the current radio reception conditions.
  • a light signal indicates when a synchronization process takes place, i.e. the swiveling in of the pointers from a reference position previously assumed in rapid traverse now again in rapid traverse into the angular position that corresponds to the decoded current time information, in order to then continue to be clocked internally from there. If the time telegram from the time transmitter (especially in Central Europe of the long-wave transmitter DCF 77) cannot be decoded unambiguously due to transmission interference, the pointer position control and correction is blocked and this incident is also indicated by an electro-optical light signal.
  • the invention is based on the object of creating a radio-controlled type of the type which, due to minimized display area requirements, can be designed to be very small - even as a small analogue wristwatch for women - but can still be used as diverse and easily interpreted signaling options as possible via certain regular and irregular operating states including correct switching of the pushbutton can be realized.
  • a function signaling device can be provided for the delivery of the sensually perceivable information.
  • different display elements if necessary also with different color impressions, or only a single display element that transmits serially coded information.
  • the most important functions, namely the impending end of battery life and unsuccessful manually initiated reception attempts, are expediently (if necessary additionally) expressed by modulating the pointer advance movement so as not to lose this information in that the signaling device is already there when the supply voltage drops critically is no longer operational.
  • the signaling device is activated every time the multiple switching device is actuated as an actuation acknowledgment, for example when the pointer time display is switched to another time zone, when switching directly back to the time zone of the telegram that is being demodulated by the receiver, or when the receiver or the receiver is switched on manually when querying the result of the most recent reception attempt.
  • the latter leads z. B. to an additional acknowledgment signal following the keyboard actuation at different times if the less common case has occurred that the reception attempt has been terminated unsuccessfully.
  • the internal time registers are not deleted, but are continued at the correct time in order to be able to reset the pointer display to the current point in time according to the internally updated keeping of time if an attempt to receive is terminated without result. This means that the watch will operate as a conventional watch with quartz accuracy until the next successful reception.
  • the small radio-controlled watch shown in FIG. 1 and designed as a ladies' wristwatch 11 contains in its watch case 12 an electromechanically driven analog display 13 with a self-sufficient internal time-keeping circuit 14 and an integrated radio-clock circuit 15.
  • the latter exists (see FIG. 2). essentially from a long-wave receiver 31 with a demodulator and decoder 36 for the absolute time information 37 received at certain intervals, including a control circuit for checking and, if necessary, correcting the current position of the analog display 13 in accordance with the recently received time information 37 as previously cited in the introduction Publications described in more detail.
  • the receiver 31 of the radio clock circuit 15 is fed from a magnetic long-wave antenna 16, which is enclosed in a partial bracelet 17.1 of the watch case 12, which can be brought together with a shorter partial bracelet 17.2 diametrically opposite to the housing 12 via a clasp 18 .
  • such a radio-controlled wristwatch 11 as well as a radio-controlled clock 11 designed as a table or wall clock work fully autonomously in the sense that the display 13 automatically turns on from any momentary malposition after commissioning (for example after the insertion of a battery) sets the instantaneous time transmitted by a time transmitter, including fully automatic change between summer time and winter time, as well as periodic checking and, if necessary, correction of the time display 13 in accordance with the absolute time information 37 received by radio - so that there is no need to operate the radio clock 11.
  • a small watch 11 with a small antenna 16 can, however, only achieve reduced reception powers, so that there is a need for the wearer to manually receive from time to time.
  • a small radio-controlled clock 11 such as an alarm clock or wristwatch is predestined to be taken along on trips and thus to be operated outside the geographical range for which information about the current absolute time is broadcast in a coded manner by a specific time transmitter .
  • the switch T1 is used for manual switch-on control of the receiver 31 in the radio clock circuit 15, the switch T2 for reversing the analog display 13 for time display in different time zones and the switch T3 for returning the presentation of the analog display 13 to that time zone, for which the transmitter received by the radio clock circuit 15 is operated (in Central Western Europe the time transmitter DCF 77 near Frankfurt / Main).
  • a function signaling device 20 to respond, that is to say to actuate a pushbutton switch Ti acoustically or preferably optically (for example by changing the symbol of a passive display such as an LCD segment or by briefly flashing an active one Signal such as a light-emitting semiconductor diode).
  • a pushbutton switch Ti acoustically or preferably optically
  • different display elements Ai of an optoelectronic function signaling device 20 can therefore be provided, which are individually assigned to the individual information to be specified. As shown in FIG. 1, the individual display elements Ai can be assigned specific information contents (such as specific pushbutton switches Ti) due to their mutual geometric arrangement.
  • the optical information presentation can also be broken down by different colors be, including the possibility of mixed color presentation in a spatially dense arrangement of the display elements Ai or in the case of geometrical merging of the rays of different colored light sources via optics or optical fibers onto a narrowly limited display area.
  • a serially coded information transmission is expediently carried out, which on the one hand is temporally linked to the manual actuation of the buttons Ti of the switching device 19 and on the other hand at, from The same pushbutton switch Ti triggered, different information contents this transmitted by a sequence of signals (different in number and / or pulse-pause time coding) modulated.
  • At least one of the pointers 21 of the analog display 13 can also serve as a function signaling device 20 'by switching from the normal pointer movement (in the course of a rapid traverse synchronization or the continuous time display) to a shift clock which is visually markedly different therefrom, if necessary, however, while maintaining an average time-correct pointer time display on the dial of the analog display 13 (as illustrated below using the example).
  • the battery chamber 22 accessible in its housing 12 must be equipped with a battery 23.
  • This active display element A flashes briefly when the battery 23 has a sufficient state of charge.
  • the operating voltage U of the charged battery 23 should be below a critical level are then controlled by a comparator 27, a pattern circuit 28, which is before feeding into the electromechanical converter 29 (z. B.
  • the pattern circuit 28 essentially acts as a counting and delaying circuit such that e.g. B. every second control pulse for the electromechanical transducer 29 is output only slightly delayed thereon. If, for example, during normal operation a step pulse 30 leads to further movement of the minute hand every 30 seconds, the actuation of the pattern circuit 28 typically has the effect that every second step pulse 30 does not follow the previous step after 30 seconds but only after, for example, 50 seconds; with the visually easily recordable effect that the minute hand of the analog display 13 takes the first half-minute step regularly, but then waits with the next half-minute step until shortly before the next but one half-minute step appears.
  • the non-appearance of the flashing of the display element A expected when the battery 23 is inserted and, on the other hand, the stumbling pointer movement in the analog display 13 each provides visual information that the battery 23 should be replaced soon because it does not have a sufficient operating voltage U for one proper operation of the radio clock 11 provides.
  • the comparator 27 does not constantly charge the battery 23, but is only switched on and only when the test load of the battery 23 is carried out by means of the display element A via the switch 26. Instead, it can also be provided that the comparator 27 is operated continuously from the operating voltage U in order to immediately initiate the switching of the pointer movement when the operating voltage U has dropped critically, that is, not to wait until the next test load that occurs when the OR -Condition 50 before the switch 26 is met.
  • the step-by-step control of the electromechanical converter 29 is set to an excessive pulse repetition frequency f2, which is preferably derived from the internal, quartz-stabilized, autonomous time-keeping circuit 14 via a changeover switch 32 is.
  • a pointer position decoder 33 determines that the pointers 21, 21 'have reached a predetermined reference position (preferably the pointer position for 00:00 or 12:00)
  • a reference position pulse 34 is output. This causes the receiver 31 to be switched on (I) and, via the changeover switch 32, that the pointers 21, 21 'are now advanced with the pulse train f1, which indicates in real time how long the receiver 31 has been switched on.
  • the decoder 36 of the radio-controlled clock receiver 31 delivers the sequence of the current time information 37 from the time telegrams 10 into a memory 38. If a predetermined number n of time information 37 is stored in the correct sequence, a counting register 39 resets a bistable flip-flop 40 was previously set when the long-wave receiver 31 was switched on (I) - by the detector 24 when a predetermined display was reached OR via the manually operable switching device 19 (cf. below). As a result, the radio clock circuit 15 is now switched off again to protect the battery 23 (0).
  • the analog display 13 is operated with the time-keeping pulse repetition frequency f1 as an autonomously operating quartz clock after (as explained in more detail in EP-OS 0 180 155) the current position of the pointers 21, which is updated in an angular position register 41 (which can be part of the memory 38), 21 'was corrected by means of the excessive pulse repetition frequency f2 to the angular position currently specified in the memory 38, which thus corresponds to the point in time just determined by radio (plus the time span for the pivoting in of the pointers 21, 21').
  • the receiver 31 When certain predetermined times hi have been reached - approximately every full hour or, because of the then better reception conditions, only at certain hours after midnight - which can be queried from the pointer position of the analog display 13 via the angular position register 41, the receiver 31 is switched on again, to decode current time information 37.
  • the comparator 42 again determines the presence of any deviation between the current pointer position according to the angular position register 41 and the relevant current content in the radio time memory 38 in order to correct the pointer position again in the temporary rapid traverse using the excessive pulse repetition frequency f2.
  • the battery state is always checked when the pointers 21, 21 'output a reference position pulse 34 via the pointer position decoder 33, as illustrated by the OR link 50 in front of the monostable multivibrator 25 of the test load switch 26.
  • An additional blocking circuit 43 can be provided, in order to avoid irritation of the viewer, to carry out this additional battery test, which normally leads to the flashing of the display element A, only for the reference position at 00:00 midnight.
  • a current point of time outside the time zone for which the decodable time information 37 is received is of interest, for example because a telecommunication connection is to be switched to a distant business partner or because one is traveling outside the time zone of the radio time telegrams. Then the pointer position of the analog display 13 (in any case its hour hand) must lead or lag behind the actually received and decoded time information 37 by a corresponding number of hours.
  • a corresponding display change can be made by means of the push button switch T2. If it is held down for longer than a predetermined response threshold of, for example, three seconds, an addition register 44 is advanced by one hour.
  • This zone information 45 causes the time display to be advanced by one hour via the memory 38 and the comparator 42, corresponding to a time zone change to the east. This can be realized particularly quickly if the two hands 21, 21 'are each equipped with their own electromechanical transducers 29, 29', so that only the hour hand needs to be moved forward by an angle of 30 ° for such a time zone changeover. In order to avoid the expense of a reversible converter 29, 29 'and to distinguish between forward and backward push-button switching, a time zone shift by z. B. one hour to the west with twelve-hour display of the change value + 11 (instead of - 1) in the addition register 44.
  • the original time zone for which the decodable time information 37 is received can be reached again by further appropriate time zone advancement.
  • the risk of incorrect setting is very great if no other clock (with unchanged time display) is available as a reference, because otherwise it is not readily clear from any time zone to which time zone the display 13 currently applies. Therefore, the pushbutton switch T3 is used for a simple and safe return to the initial time zone. It can be provided, by its operation (how to Start of operation via the voltage detector 24) to reset the addition register 44, so that there is no longer any time zone shift in the time information memory 38 and the analog display 13 from a somewhat different previous time zone display, controlled by the comparator 42, automatically moves quickly to the original one Time zone is continued.
  • a flip-flop 48 with a subsequent gate circuit 49 in FIG. 2 simplifies the fact that it may be expedient to make the manual or display-controlled re-activation of the receiver 31 dependent on the radio clock 11 operating in the transmitter time zone, namely is set via the key switch T3 to display the time information 37 transmitted by the transmitter. Because in geographically remote time zones a sufficiently reliable reception would no longer be possible and the battery 23 would only be unnecessarily charged due to useless receiver operation. Depending on the sensitivity design of the receiver 31 and its antenna 16 can, however, be permitted, for. B. in the time zones adjacent to both sides of the transmitter time zone (content + 1 or + 11 in register 44) this blocking function 48-49 does not yet take effect because there is still sufficient interference-free reception at night.
  • the operation of the receiver 31 can be checked and influenced by means of the non-recessed and therefore easier-to-operate push-button switch T1.
  • the receiver 31 is switched off again (and the pointers 21, 21 ′ continue to be driven autonomously after the current display correction from the quartz-stabilized circuit 14 with a time-stepping indexing frequency f1) when a sequence of plausible time information 37 could be received and decoded. If, however, this was not successfully possible over a certain period of time t, then the receiver 31 becomes hi again via a timer 51 (for example after a reception time of seven minutes) until the time of the next predetermined switch-on time has been reached switched off without a bistable flip-flop 40 set when switching on being reset.
  • a monostable delay element 52 queries the status of the bistable flip-flop 40 via its AND input and drives the display element A a second time if it has not been reset by the counter register 39 because the previous receiver activation did not result in a sufficient amount of usable time information 37. So if a brief actuation of the pushbutton switch T1 causes two flashes of light, the current time display is not secured because the recent receiver switch-on was unsuccessful; but if it was successful, the simple flash of light remains.
  • the receiver 31 can also be put into reception mode manually by means of the pushbutton switch T1 (so-called "JUNGHANS transmitter call”) by a somewhat longer actuation (until the pointers 21, 21 'are in rapid traverse, in the example shown after pressing a key for longer than three seconds but not for eight seconds) AND AND if the current pointer display according to flip-flop position 48 is based on the time zone of the time telegram 10 ( or an approved neighboring time zone) as illustrated by gate circuit 49.
  • the pushbutton switch T1 so-called "JUNGHANS transmitter call”
  • a somewhat longer actuation until the pointers 21, 21 'are in rapid traverse, in the example shown after pressing a key for longer than three seconds but not for eight seconds
  • the changeover switch 32 is now again temporarily set to the rapid movement of the pointers 21, 21 'to its reference position, from which at least one of the pointers 21, 21' is in the cycle of the demodulated time telegram 10 (cf. EP-OS 0 180 155) is moved on to recognize whether this appears regularly (evaluable) or not.
  • the switched-on receiver 31 is switched off again (0) when either an increased number n of plausible time information 37 has been obtained OR, instead, the predetermined switch-on time t has expired without success.
  • the pointers 21, 21 ' are swiveled in swiftly, controlled by the comparator 42, to the current decoded time information 37, and in the event of failure, to the time which is updated in the buffer 54 from the time-keeping circuit 14 and transferred to the register 41.
  • a flag 53 is set for activating the pattern circuit 28, in order after the unsuccessful expiration of the time period t as described, or in a different manner Sequence to cause an irregular, so to speak stumbling rapid traverse of the hands 21, 21 'in the time to be displayed again in the future, because this newly picked up time only represents the update of the old one.
  • the query of the mark 53 can also be used to transfer the time update from the memory 54. It is reset by the comparator 42 when the pointers 21, 21 'have reached their desired position, from which they are then moved on again from the time-keeping circuit 14 in a regular indexing cycle f1.
  • a so-called soft restart also leads to activation of the register reset inputs R, but without resetting the processor in the program start, in that only the pushbutton switch T1 is held for a long period of time (longer than eight seconds in the example shown) and then is only released again.
  • the reliably decoded current time display is left in order to first move the hands 21 to their reference position in rapid traverse, from which they are first moved in the correct time and are then set to the current time information 37 in rapid traverse.
  • the "transmitter call" mentioned leads to the acceptance of the internal time updated in the memory 54, if not enough usable time information 37 can be decoded within the switch-on period t. If sufficient reception is not possible, the clock 11 continues to operate after a transmitter call as if it had not been made at all, while a restart always deletes the previous time information and tries to win.
  • the processor in which the described links and controls are implemented can be switched off completely (sleep mode illustrated symbolically in the drawing by the circled point) by actuating the pushbutton switch T1 AND the pushbutton switch T2 simultaneously. Then the hands 21, 21 'remain in the currently reached position and all consumers are switched off so that the watch 11, which is no longer used, can be put away with maximum protection of the battery 23. The actuation of any of the pushbutton switches Ti then causes a hard restart, as when starting up for the first time or as the key combination T2 AND T3 (see above).
  • the effect of the sleep key combination T1 AND T2 corresponds initially to the simultaneous actuation of the key switches T1 AND T3, but then with the difference that the electromechanical transducers 29, 29 'are still moved in rapid traverse to their reference position which triggers a flash of light before the final one Shutdown occurs.
  • This has the advantage that the pointers 21, 21 'can now be adjusted, exchanged or installed for the first time in an angularly defined position, namely preferably in cover with one another in the 12:00 position.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
EP93100939A 1992-01-28 1993-01-22 Small autonomous radio timepiece with analogue display, in particular wristwatch radio Withdrawn EP0553722A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9200950U DE9200950U1 (de) 1992-01-28 1992-01-28 Kleine autonome analog anzeigende Funkuhr, insbesondere Funkarmbanduhr
DE9200950U 1992-01-28

Publications (2)

Publication Number Publication Date
EP0553722A2 true EP0553722A2 (fr) 1993-08-04
EP0553722A3 EP0553722A3 (en) 1995-12-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93100939A Withdrawn EP0553722A3 (en) 1992-01-28 1993-01-22 Small autonomous radio timepiece with analogue display, in particular wristwatch radio

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EP (1) EP0553722A3 (fr)
DE (1) DE9200950U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0809160A4 (fr) * 1995-12-06 1999-03-10 Citizen Watch Co Ltd Horloge radiocalibree
EP0909996A3 (fr) * 1997-10-17 2002-12-18 Junghans Uhren GmbH Montre radio alimentée par énergie solaire
WO2015029610A1 (fr) * 2013-08-27 2015-03-05 シャープ株式会社 Radio de type bande

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0751444A1 (fr) * 1995-06-27 1997-01-02 Isa France S.A. Instrument horaire à affichage analogique, notamment une montre, une horloge ou une pendulette, et procédé de contrÔle de la mise à l'heure automatique de cet instrument
DE19600245C2 (de) * 1996-01-05 1998-08-06 Braun Ag Funkuhr

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911665A (en) * 1974-01-14 1975-10-14 Zenith Radio Corp Electronic timepiece having complementary electro-optical and electro-mechanical displays
GB2016749B (en) * 1978-01-27 1982-08-11 Suwa Seikosha Kk Batery driven electronic analogue timpieces
US4582434A (en) * 1984-04-23 1986-04-15 Heath Company Time corrected, continuously updated clock
DE9010270U1 (de) * 1990-05-04 1991-09-05 Junghans Uhren GmbH, 7230 Schramberg Autonome Funkuhr

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0809160A4 (fr) * 1995-12-06 1999-03-10 Citizen Watch Co Ltd Horloge radiocalibree
EP0909996A3 (fr) * 1997-10-17 2002-12-18 Junghans Uhren GmbH Montre radio alimentée par énergie solaire
WO2015029610A1 (fr) * 2013-08-27 2015-03-05 シャープ株式会社 Radio de type bande

Also Published As

Publication number Publication date
EP0553722A3 (en) 1995-12-13
DE9200950U1 (de) 1993-05-27

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