EP0455183B1 - Horloge radio-commandée autonome - Google Patents

Horloge radio-commandée autonome Download PDF

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Publication number
EP0455183B1
EP0455183B1 EP91106884A EP91106884A EP0455183B1 EP 0455183 B1 EP0455183 B1 EP 0455183B1 EP 91106884 A EP91106884 A EP 91106884A EP 91106884 A EP91106884 A EP 91106884A EP 0455183 B1 EP0455183 B1 EP 0455183B1
Authority
EP
European Patent Office
Prior art keywords
display
time
radio
hour
receiver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91106884A
Other languages
German (de)
English (en)
Other versions
EP0455183B2 (fr
EP0455183A2 (fr
EP0455183A3 (en
Inventor
Wolfgang Ganter
Wolfram Hodapp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6853493&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0455183(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Junghans Uhren GmbH filed Critical Junghans Uhren GmbH
Publication of EP0455183A2 publication Critical patent/EP0455183A2/fr
Publication of EP0455183A3 publication Critical patent/EP0455183A3/de
Application granted granted Critical
Publication of EP0455183B1 publication Critical patent/EP0455183B1/fr
Publication of EP0455183B2 publication Critical patent/EP0455183B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0064—Visual time or date indication means in which functions not related to time can be displayed
    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R20/00—Setting the time according to the time information carried or implied by the radio signal
    • G04R20/08—Setting the time according to the time information carried or implied by the radio signal the radio signal being broadcast from a long-wave call sign, e.g. DCF77, JJY40, JJY60, MSF60 or WWVB
    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R60/00—Constructional details
    • G04R60/04—Antennas attached to or integrated in watch bracelets

Definitions

  • the invention relates to an autonomous radio clock according to the preamble of claim 1.
  • Such a radio clock is known from EP-A-0 372 432. It is equipped with a manually operated zone switch for entering hours into a memory, the content of which, for the time display, is added to or subtracted from the current hourly information, which is decoded from the radio telegram received from time to time and then continued until the next radio reception.
  • the hour of the time shown on the digital display deviates by the manually specified number of time zones from that which can be decoded for the sender time zone from the received time telegram, which corresponds to a time display in a certain other selectable geographic time zone.
  • the radio clock which is also known from EP-A-0 308 881 and also has a digital display, has the special feature of specifying in a display area reserved for this purpose how often the receiver has been switched on in vain since the most recent reception of a usable time telegram. If reception conditions are very unfavorable (because they are heavily shielded or severely disturbed), several automatically or manually initiated reception attempts may have been unsuccessful, so that the current time display has been based on internal time keeping for some time (without checking and, if necessary, correcting it based on a currently received time telegram). Under normal conditions of use of the radio clock, each receiver activation leads to the receipt of a usable time telegram, so that the control display shows the value zero because the most recent receiver activation was not in vain.
  • the current reception quality is determined from the comparison of an ideal rectangular pulse with the coding pulses and the time telegram just received and is displayed as a quality number.
  • the decodability of the received time telegram does not only depend on the reception field strength currently encountered, but also on other disturbances during the reception time phase. However, if only the field strength is of interest, it can be displayed according to DE-A-2 802 040 by means of a row of light-emitting diodes next to the digitai display for the information decoded from the time telegram.
  • a pointer can be provided for switching on at the rate of the received coding frequency of the time telegram when the clock is started up until absolute time information could be decoded from the received time telegram as a reference for checking and correcting the time display pointer setting.
  • An unsteady run of such an indicator pointer is an unmistakable indication that no undisturbed reception of the time information encoded in the second grid is possible, and that an automatic correction of the current time display is therefore not to be expected given the current reception conditions.
  • the present invention is based on the object of designing a radio-controlled clock, known as such, with an electromechanical instead of a digital time display in such a way that it can also be used to switch easily to other time zones for the user.
  • the circuit clock and sketched radio clock 11 is equipped with a miniaturized antenna 12 which feeds a receiver 14 via an antenna line 13. This is tuned to at least one transmitter, which is usually operated in the long-wave frequency band and which quasi-continuously emits coded absolute time information. This is demodulated in the receiver 14 and into a decoder 15 digitized time information implemented, which is transferred to a display control circuit 16 for a multi-digit digital display 17. If an analog display 18 is additionally provided for the display of the current hour and minute, this information need not additionally be presented in the digital display 17; this can then be limited to a two-digit day, month and second display D, M, S, of which the first two groups of digits are followed by an ordinal point 19 to simplify the interpretation (FIG. 2).
  • an electromechanical display 18 is equipped with a coding or incremental detector 20 in order to display the current mechanical display position (i.e. the current time display) in a comparator 21 with the (absolute ) Compare time information.
  • a changeover switch 22 in order to control the electromechanical converter 23 (for example a clock stepper motor) with an increased frequency f2 from an autonomous internal time-keeping circuit 24 until the mechanical display 18 again matches the specified time information.
  • the comparator 21 switches the changeover switch 22 back, and from then on the converter 23 is clocked further at the time-keeping frequency f1.
  • a reception indicator 25 is provided, which is preferably implemented as a flashing representation between or next to the digits of the optronic display 17 . If, according to the preferred implementation example shown, a weekday display 26 with jump labels 27 is provided, the weekday abbreviations (in FIG. 2 the English-language abbreviations M, T, T, W, F, S, S for the weekdays Monday ...
  • a level measuring device 30 is connected downstream of the antenna 12 upstream or downstream of the amplifying receiver 14, which can control the sequence of all day marks 27 via an intensity control circuit 31 in the manner of a bar graph display.
  • a part of the optronic display 17 can be used to signal, if necessary, that the operating voltage of the power source 36 has dropped critically, for example, a buffered solar cell should be exposed to the radiation or a battery change should be carried out immediately in order to prevent the clock 11 from coming to a standstill .
  • a detector 37 is provided, which works, for example, as a voltmeter. If the display position detector 20 works with light-emitting diodes in light barriers, as described in more detail in US Pat. No.
  • the receiver 14 is switched on whenever the clock 11 is put into operation, for example by equipping it with a (fresh) power source 36 Inquiry circuit 40, which is preset to certain times, such as reaching every full hour of the current time. However, if it is a configuration as a wristwatch radio watch 11, it is more expedient to specify only a few points in the night in the query circuit 40 as switch-on times for the receiver 14.
  • the receiver 14 can also be switched on manually via a so-called “transmitter call button” 41, which is arranged in a recessed manner in the housing 60 of the clock 11 in order to avoid erroneous actuation (as can be seen in FIG. 2).
  • an isolating switch 42 between the decoder 15 and a register 43 is opened, which is placed on this when a plausible current time information is decoded and is then clocked out of the time-keeping circuit 24 for the continuous time determination.
  • the switching on of the receiver 14 is interrupted again by a switching stage 45 when the decoder 15 was able to decode current correct time information and therefore also resets the switches 42, 44 to the normal display function; or if such a plausible current time information could not be obtained from the decoder 15 over a certain receive operating period of time (specified in the switching stage 45).
  • the plausibility criterion is a defined time difference between currently decoded received time information and past time information or reference time information obtained from the advanced time register 43.
  • the constellations of a receiver switching on and switching off again without decoding a valid time information are recorded in an inhibit link gate 46 and summed up by a counter 47, the current counter reading of which is shown numerically on the display 17 switched over to transmitter display by correspondingly loading the display control circuit 16 '; for example as a number of attempts to receive 48 with at least one of the digits which, in the normal display 17, serve as day display D (as taken into account at the top left in FIG. 2).
  • the display of the number of attempts to receive 48 thus always remains "zero" if (in the reception area of the time information transmitter) each activation of the receiver 14 - be it manually or automatically - leads to the decoding of current time information.
  • the receiver 14 Every time the receiver 14 switches off, without it being possible to obtain confirmed, i.e. currently absolute, time information in the decoder connected downstream, the old time information, which is kept internally in register 43, is returned to the display 17 via the display control circuit 16. This ensures that a correct (even if not confirmed by radio) time display also occurs if, for example, reception and decoding of radio time information is currently not possible due to interference or a switched-off transmitter.
  • a transmitter for transmitting coded absolute time information relates this to a specific geographical time zone, regularly to the time zone in which it is operated. It can be assumed that in the mutually adjacent edges of the adjacent time zones, those transmitters can also be recorded with sufficient field strength for the operation of the receiver 14 via the antenna 12. However, this is certainly no longer the case if the radio clock 11 is operated beyond the time zones adjacent to the transmitter to which the receiver 14 is tuned on both sides.
  • the continuous time display 18, including the additional displays on the display 17, therefore only works from the register 43, which is internally timed.
  • a manually operated zone switch 51 is provided, with which the register 43 operating the display control circuit 16 by full hours (without influencing the current minute and second performances; but taking into account any calendar changes of the day) can be probed forward and backward, for example by actuating pushbutton switches 52+, 52- arranged recessed in the watch case 60.
  • this addition or subtraction of complete hours in the block diagram of FIG. 1 has been moved to an adaptation register 53 connected downstream of the time register 43.
  • one hour is deducted or added to the hourly information received for display.
  • this manual time zone adjustment is more than one time zone, that is to say relates to regions in which reliable reception of the transmitter can no longer be expected
  • the activation of the receiver 14 to relieve the power source 36 is blocked via a gate circuit 54.
  • Their control takes place from a comparator 55, which switches through the gate circuit 54 again when the manually effected hour change returns below plus or minus two. This results, for example, from a comparison of the hourly information in front of and behind the adaptation register 53.
  • the display control circuit 16'visueii can now be used to show how many enumerating or counting operations of the key switch 52 have been carried out, i.e. by how many time zones to the east or west, the time display has changed compared to the transmitter time zone shall be.
  • the traversing of the electromechanical flaps or pointer display 18 via the increased setting frequency f2 cannot, however, take place at any desired speed for reasons relating to transmission technology; and if a mechanical rapid traverse is only possible in one direction, for a 12-hour display 18, e.g. the changes by minus two time zones ten complete revolutions of a minute hand coupled with the hour hand. So while the time zone change can be made quickly via the pushbutton switches 52, it can be irritating that the wake of the electromechanically advanced hands or digits does not follow this in any way.
  • the antenna 12 of the radio clock 11 is expediently designed as a magnetic antenna, consisting of a flat coil 56 connected to the antenna line 13 on a flexible core 57, as described in more detail for example in DE-GM 88 15 967.
  • This antenna 12 can be drawn into a bracelet 58 and connected electrically and mechanically to the housing 60 of the radio-controlled wristwatch 11 by means of a combined plug-in and fastening device 59.
  • a hybrid watch i.e. with a combination of electromechanical display 18 and electro-optical display 17, the latter is preferably - contrary to the usual design of such hybrid watches - not below but above the electromechanical pointer display 18 arranged.
  • the partial bracelet which is not equipped with an antenna, is articulated to the edge of the watch case 60 via a conventional hinge 62.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Claims (4)

1. Horloge radio (11) autonome comportant un récepteur (14) à enclencher de manière sporadique pour des informations de temps absolues, codées, comportant un écran numérique (17) à plusieurs chiffres ainsi qu'un commutateur de zone (51) pour la sélection manuelle d'heures représentant un changement de zone horaire, caractérisée en ce que l'horloge radio (11) est équipée d'un affichage de temps mécanique (18), qui après actionnement du commutateur de zone (51) passe à l'heure de consigne, qui, suivant l'actionnement du commutateur de zone (51), est précisément affichée sur l'écran 17 en tant qu'affichage d'heure H en vigueur.
2. Horloge radio selon la revendication 1, caractérisée en ce que pour la représentation de l'heure de consigne une partie de l'écran (17) peut passer provisoirement de son affichage normal à un affichage auxiliaire.
3. Horloge radio selon la revendication 2, caractérisée en ce que sur une partie de l'écran (17) pendant l'affichage maintenant le temps, sont affichées les secondes reçues et décodées du temps actuel, tandis qu'après actionnement du commutateur de zone (51), est affichée provisoirement dans cette zone l'heure de consigne à laquelle l'affichage de temps mécanique (18) passe précisément.
4. Horloge radio selon l'une des revendications précédentes, caractérisée en ce que dans le cas où l'heure de consigne donnée par le commutateur de zone (51) s'écarte de plus d'une zone horaire de l'heure de l'information de temps reçue dans l'instant, le récepteur (14) reste hors fonction pour la réception des informations de temps.
EP91106884A 1990-05-04 1991-04-27 Horloge radio-commandée autonome Expired - Lifetime EP0455183B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9005073U 1990-05-04
DE9005073 1990-05-04

Publications (4)

Publication Number Publication Date
EP0455183A2 EP0455183A2 (fr) 1991-11-06
EP0455183A3 EP0455183A3 (en) 1992-01-15
EP0455183B1 true EP0455183B1 (fr) 1995-06-28
EP0455183B2 EP0455183B2 (fr) 2001-04-25

Family

ID=6853493

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106884A Expired - Lifetime EP0455183B2 (fr) 1990-05-04 1991-04-27 Horloge radio-commandée autonome

Country Status (5)

Country Link
US (1) US5105396B1 (fr)
EP (1) EP0455183B2 (fr)
DE (2) DE9010270U1 (fr)
ES (1) ES2075257T3 (fr)
HK (1) HK73296A (fr)

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Also Published As

Publication number Publication date
DE9010270U1 (de) 1991-09-05
US5105396B1 (en) 1993-11-30
ES2075257T3 (es) 1995-10-01
EP0455183B2 (fr) 2001-04-25
US5105396A (en) 1992-04-14
EP0455183A2 (fr) 1991-11-06
EP0455183A3 (en) 1992-01-15
HK73296A (en) 1996-05-03
DE59105829D1 (de) 1995-08-03

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