EP0161545B1 - Personensuchgerät für eine elektronische Uhr - Google Patents

Personensuchgerät für eine elektronische Uhr Download PDF

Info

Publication number
EP0161545B1
EP0161545B1 EP85104910A EP85104910A EP0161545B1 EP 0161545 B1 EP0161545 B1 EP 0161545B1 EP 85104910 A EP85104910 A EP 85104910A EP 85104910 A EP85104910 A EP 85104910A EP 0161545 B1 EP0161545 B1 EP 0161545B1
Authority
EP
European Patent Office
Prior art keywords
signal
transducer
frame
terminals
output
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
Application number
EP85104910A
Other languages
English (en)
French (fr)
Other versions
EP0161545A1 (de
Inventor
Bui Ngoc Chau
Claude-Eric Leuenberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asulab AG
Original Assignee
Asulab AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asulab AG filed Critical Asulab AG
Publication of EP0161545A1 publication Critical patent/EP0161545A1/de
Application granted granted Critical
Publication of EP0161545B1 publication Critical patent/EP0161545B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/04—Input or output devices integrated in time-pieces using radio waves
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G08B3/1008—Personal calling arrangements or devices, i.e. paging systems

Definitions

  • the present invention relates to people search devices. It relates, more particularly, to a miniaturized research apparatus capable of taking place in a watch.
  • People finders are well known. They include a frame or coil constituting an antenna capable of detecting a coded magnetic field coming from a transmitter located at a relatively short distance (a few tens of meters). If the code received corresponds to the device code, stored in a memory, a transducer produces an acoustic signal, possibly accompanied by an optical signal, warning the wearer of the device that he must, for example, dial a number phone.
  • the main object of the present invention is to avoid these drawbacks by eliminating the tuning capacity of the frame and the tuning inductor of the piezoelectric transducer without reducing the performance of the people search device.
  • a research facility includes a transmitter and a series of receiver devices carried by people.
  • the transmitter radiates a sine magnetic field or carrier wave, coded for example by an amplitude modulation, having a well-defined carrier frequency and sufficient power to reach the receivers within a given radius. All the receiving devices are tuned to the same carrier frequency, but a device responds to the transmitted wave, for example by an acoustic signal, only if the wave code corresponds to the device code, written in a memory. . Each device responds to a different code. If several groups of devices are to operate in neighboring regions, each group will be assigned a different carrier frequency.
  • the frequency f o of the carrier wave is between 28 and 55 kHz, while the frequency f 1 of the acoustic signal is between 1 and 2 kHz.
  • Figure 1 shows the block diagram of a known pager. It includes a frame or coil 1, of self induction Le, acting as an antenna to pick up the magnetic field.
  • the voltage induced in the frame by the field can be increased, in a known manner, by tuning the carrier frequency f o the self Le of the frame using a capacitor 2 of capacitance Ce connected across its terminals.
  • This voltage then multiplied by the quality facor Q c of the frame measured at the frequency f o , is applied to the input of a very selective high frequency amplifier 3, tuned to this same frequency f o using, by example, a ceramic or quartz filter.
  • the output of amplifier 3 is connected to the input of a demodulator 4 which provides on its output a signal 4S formed of a series of pulses, corresponding to the positive half-envelope of the modulated carrier wave.
  • a demodulator 4 which provides on its output a signal 4S formed of a series of pulses, corresponding to the positive half-envelope of the modulated carrier wave.
  • Each arrangement of the pulses of signal 45 corresponds to a particular code.
  • the signal 4S is applied to the input of a decoder circuit 5.
  • This includes a memory in which the code of the device is written and means making it possible to compare this code with that transmitted by the signal 4S. If the comparison shows that these two codes are identical, the signal 5S at the output of the decoder 5, normally being in the low logic state, passes for a short time to the high logic state.
  • a flip-flop 6 receives on its input S the signal 5S state, which has the effect of putting the output Q of this flip-flop in the high logic state if the output of the decoder 5 is in the same state .
  • the signal 5S is also applied to the input of a monostable flip-flop 7 the output of which is normally in the low logic state.
  • This output goes briefly to the high logic state t 21 seconds after each transition of the signal 5S from the low logic state to the high logic state.
  • the signal taken from the output of the monostable 7 is applied to the reset input R of the flip-flop 6, the output Q of which is thus brought to the low logic state after each pulse of this signal.
  • the output Q of this flip-flop, on which the signal 60 appears is connected to an input of an AND gate 9 with two inputs, the other input of this gate being connected to the output of a generator 8 providing a signal acoustic frequency f l .
  • the output of the AND gate 9 is connected to the input of a power amplifier 10, equivalent to a source of electrical energy having two output terminals S, and S z . Between these output terminals is connected a circuit formed by the series connection of an inductor 12 with inductance L o and a piezoelectric transducer 11.
  • An example of a coded magnetic field emitted by the transmitter of the paging system is represented as a function of time by the E wave in FIG. 2. It comprises a carrier wave modulated in amplitude by all or nothing, forming a series of programs of equal duration, distributed over time in accordance with a rule which defines the different codes of the coding system.
  • the magnetic field emitted by the emitter induces in frame 1 of FIG. 1 a voltage of the same shape as the E wave. If the frame 1 is tuned by the capacitor 2, the voltage obtained is of the order of a few tens of microvolts.
  • the voltage induced in frame 1 takes the form of the signal 4S shown in FIG. 2.
  • the same signal is also shown in FIG. 3 over a longer period. It consists of a series of pulse trains, each train defining the transmitted code. The first pulse train begins at an instant T 0 and ends at an instant T 1 .
  • the second train begins at an instant T 0 'and ends at an instant T 1 '
  • the third train of pulses shown begins and ends respectively at instant T 0 "and T 1 ".
  • the duration T 1 - T 0 , T 1 '- T 0 ' of each pulse train is constant, as well as the duration T 0 '- T 0 , T 0 "T 0 ' separating two consecutive trains. pulses follow one another until the person sought has replied or the broadcast stops after a predetermined time.
  • this circuit will deliver a short pulse at a time which immediately follows time T l , as indicated by the signal 5S represented in FIG. 3.
  • This pulse applied simultaneously to the inputs of flip-flops 6 and 7, will put the output Q of the first one in the state logic high, as signal 6Q shows, and the output of the second in logic low.
  • the AND gate 9, receiving on one input the signal 6Q, will pass the signal produced by the generator 8, applied to the other input, to the input of the amplifier 10.
  • This signal will last t 21 seconds, up to an instant T 2 time necessary for the output of the monostable flip-flop 7 to pass a brief instant from the low logic state to the high logic state in order to return to the low logic state.
  • An input of the AND gate 9 being from the instant T 2 in the low logic state, the signal from the acoustic generator 8 is blocked and can no longer excite the transducer 11.
  • the acoustic signal definitively ceases at time T 2 if the person called takes the necessary steps before this time, for example by dialing a telephone number, to stop the transmission. Otherwise, a second pulse train, identical to the first, is emitted from time T o ', triggering, at time T 1 ', a second acoustic call which lasts until an instant T 2 '.
  • the circuit of FIG. 4 having two terminals A and B, shows the equivalent diagram of the piezoelectric transducer 11 and the chord inductor 12 of value L o , connected in series.
  • This diagram includes a static capacitance co at the terminals of which is connected a motional branch composed of a self L 1 , of a resistance R 1 and of a capacitance C l .
  • the static capacitance C o is equal to the capacitance existing between the electrodes of the transducer, while the vibratory properties of the transducer are represented by the parameters L 1 , R 1 , C 1 of the motional branch.
  • the motional capacitance C 1 is approximately 1000 times lower than the static capacitance C o , the value of which can vary, depending on the form of metallizations, between 1 nF and 50 nF in a watch transducer.
  • the frame 1 for its part, produced in horological dimensions, can typically be circular in shape, have a diameter of the order of 25 mm and contain a thousand turns of a wire of around 50 micrometers in diameter. The self L c of such a frame is then between 10 mH and 50 mH.
  • the capacitance C 0 can therefore be very suitable for granting the self Le of the frame. Indeed, with the limit values that these two components can take, it is possible to cover a frequency range from 3 kHz to 50 kHz, containing that used in people search installations.
  • One of the aims of the present invention being to remove the tuning capacitor 2 from the frame, it can be seen that it can be achieved by using the capacitance C 0 of the transducer 11 for this function.
  • the value of Q o can vary between 3 and 10.
  • the voltage across the capacitance C o even charged by the motional branch whose impedance is high compared to that of C o , will therefore remain significantly higher to V.
  • the choke 12 can be replaced by the frame 1.
  • the efficiency of the frame at the acoustic frequency f 1 which is about twenty times lower than f 0 , cannot be good while providing some improvement compared to a direct attack on the transducer 11 by amplifier 10.
  • an additional capacitor 13 of capacitance C o ' can be connected in parallel on C o , as shown in FIG. 4.
  • the additional capacitor 13 can be a second piezoelectric transducer having a static capacity C o '. It is possible to produce the two transducers in the form of a single element having two faces and having a common electrode on one face and two electrodes on the other face, each of these latter electrodes defining one of the transducers.
  • frame 1 either as a magnetic wave sensor or as a chord inductor of the transducer 11 and the use of this transducer either as an acoustic emitter or as a chord capacitor of frame 1 is only possible if a switching circuit is used to connect the frame and the transducer adequately to fulfill these various functions.
  • FIG. 5 represents the block diagram of a watch, for example digital, provided with a people search circuit according to the invention.
  • the watch part of classic design, includes a quartz 20 serving as time base, a maintenance circuit 21, a counter 22, a driving circuit 24 and a digital display 25.
  • the quartz 20 is connected to the maintenance circuit 21, the assembly forming an oscillator.
  • the signal at the output of the maintenance circuit is applied to the input of the counter 22 which has a main output Si and two auxiliary outputs S 2 and S 3 . On these last two outputs appear respectively a high frequency signal formed by pulses and an acoustic frequency signal.
  • the output S 1 provides, for its part, a signal containing the time information. It is applied to the input of the driving circuit 24 which generates the signals necessary for indicating the time by the display 25 to which it is connected.
  • the people search part of figure 5 includes elements 1, 3, 4, 5, 6, 9 and 10, already described in connection with figure 1 and connected in the same way in the two figures.
  • the monostable lever 7 of FIG. 1 has been replaced, in FIG. 5, by a counter 23 of simpler construction.
  • This counter 23 receives, on one input, the pulses coming from the output S 2 of the counter 22 of the watch and, on another input, the signal 5S.
  • Each pulse of signal 5S resets counter 23 to zero and then starts counting.
  • the counter 23 produces a pulse on its output, which is connected to the input R of the flip-flop 6.
  • the time required to fill this counter corresponds to the time interval t 21 , previously determined by the monostable rocker 7.
  • the input of the AND gate 9 which was connected in FIG. 1 to the output of the acoustic frequency generator 8, is connected in the circuit of FIG. 5 to the output S 3 of the counter 22 which supplies a signal of the same frequency.
  • the circuit for switching the frame 1 and the transducer 11 already mentioned, is represented by block 15 in FIG. 5.
  • This circuit has three inputs E 1 , E 2 , E 3 and three outputs S 1 , S 2 , S 3 .
  • the inputs E 1 and E 2 are respectively connected to the outputs S 1 and S 2 of the amplifier 10.
  • the input E 3 receives the signal 6Q coming from the output of the flip-flop 6.
  • the output S 1 of circuit 15 is connected to a terminal of frame 1.
  • the output S 2 of this same circuit is connected to a terminal of a capacitor 14 having a capacity equal to the capacity C o 'of the capacitor 13 of FIG. 4.
  • the other terminal of this capacitor is connected to one terminal of the transducer 11 and to the other terminal of the frame 1.
  • the frame 1, the transducer 11 and the capacitor 14 thus have a common terminal.
  • the output S 3 , the input E 1 and the other terminal of the transducer are connected together.
  • the circuit 15 essentially comprises two switches A and B actuated by relays not shown.
  • the first switch is connected to the output S 1 and the second to the output S 2 .
  • Switch A can occupy two positions a, and a 2 . In position a 1 , the switch closes a contact which links the output S 1 with the input E l . In position a 2 , this output is connected to input E Z.
  • Switch B can also occupy two positions b, and b 2 . In position b 1 , the switch does not close any contact and the output S 2 remains floating, while in position b 2 , this output is connected to input E 1 .
  • the relays, not shown, actuating the switches A and B are controlled by the signal 6Q shown in FIG. 3.
  • This signal is applied to the input E 3 of the circuit 15. It will be assumed that at a low logic state of the signal 6Q correspond the positions a 1 and b 1 of switches A and B and that at a high logic state of this signal correspond the positions a 2 and b 2 of these same switches.
  • the operation of the people search part of the circuit of FIG. 5 is as follows. In the absence of any coded search signal E, the signals 4S, 5S, and 6Q of FIGS. 2 and 3 all remain in the low logic state. This has the effect of putting the switches A and B respectively in the positions a 1 and b 1 . The two terminals of the transducer 11 are then connected to the two terminals of the frame 1 and one terminal of the capacitor 14 is made floating. The frame is tuned, under these conditions, by the static capacitance of the transducer on the carrier frequency f o of the signal E, making unnecessary the tuning capacitor 2 shown in FIG. 1.
  • the circuit 15 remains in this state until a coded signal received by the frame 1 is recognized by the decoder 5.
  • the output Q of the flip-flop 6 then goes to the high logic state at the instant T 1 causing the switching of switches A and B respectively in positions a 2 and b 2 .
  • the outputs S 1 and S 2 of the amplifier 10, which acts as a source producing an acoustic frequency signal, are then connected, by the switch A, to the terminals of the transducer 11 through the frame 1, making the choke 12 unnecessary. of FIG. 1.
  • the capacitor 14 of capacity C o is connected, for its part, directly to the terminals of the transducer by the switch B.
  • the transducer being excited by the amplifier 10, it will emit an acoustic signal d call in the best performance conditions.
  • This call signal will be transmitted for t 21 seconds.
  • the output Q of the flip-flop 6 passing to the low logic state the transducer 11 will be again connected to the terminals of frame 1, as at the start of the cycle If the call signal has remained unanswered, a new cycle, identical to the previous one, will be triggered from time T 0 '.
  • the present invention is not limited to the single embodiment of a person search device which has just been described, but the scope of this patent also extends to the variants of the various circuits remaining within the framework of equivalences.
  • the operation of the circuit 15 in FIG. 5 has been described using contacts to facilitate understanding.
  • the contacts can be replaced in a known manner by electronic switching devices such as transistors and transmission gates.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Clocks (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Near-Field Transmission Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)

Claims (4)

1. Miniaturisiertes Personensuchgerät, insbesondere für Uhren, umfassend:
- eine Antenne (1), um ein variables elektromagnetisches Signal aufzufangen; - einen Wandler (11), der einen Ton erzeugen kann und zwei Anschlüsse hat;
- eine Quelle (10), die zwei Anschlüsse hat und ein elektrisches-Tonfrequenzsignal liefert;
- Mittel (5, 6, 22, 23) zum Erzeugen eines logischen Steuersignals (6Q) bei Erscheinen des genannten elektromagnetischen Signals; und
- einen Umschaltkreis (15), der auf einen ersten und einen zweiten Zustand des genannten logischen Signals anspricht, dadurch gekennzeichnet, daß:
- die genannte Antenne (1) ein eine Drossel tragender Rahmen mit zwei Anschlüssen ist;
-der genannte Wandler (11) ein piezoelektrischer Wandler mit zwei Anschlüssen ist, zwischen denen er eine statische Kapazität aufweist; und daß
- der genannte Umschaltkreis (15) so ausgelegt ist, daß er infolge des ersten Zustands des logischen Signals den Rahmen und den Wandler parallel, und infolge des genannten zweiten Zustands des logischen Signals den Rahmen und den Wandler in Serie und auf die Anschlüsse der genannten Quelle schalten kann.
2. Gerät gemäss Anspruch 1, dadurch gekennzeichnet, dass die Drossel des genannten Rahmens durch die statische Kapazität des genannten Wandlers auf die Frequenz des genannten magnetischen Signals abgestimmt wird.
3. Gerät gemäss einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß es ferner einen Zusatzkondensator (14) umfaßt, der über den genannten Umschaltkreis mit den Anschlüssen des genannten Wandlers verbunden ist, wenn sich das genannte logische Steuersignal in dem genannten zweiten Zustand befindet.
4. Gerät gemäss Anspruch 3, dadurch gekennzeichnet, daß die Drossel des genannten Rahmens durch die genannte statische Kapazität unter Hinzufügung der Kapazität des genannten Zusatzkondensators auf die genannte Tonfrequenz abgestimmt wird.
EP85104910A 1984-04-25 1985-04-23 Personensuchgerät für eine elektronische Uhr Expired EP0161545B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2030/84 1984-04-25
CH203084A CH654169GA3 (de) 1984-04-25 1984-04-25

Publications (2)

Publication Number Publication Date
EP0161545A1 EP0161545A1 (de) 1985-11-21
EP0161545B1 true EP0161545B1 (de) 1988-08-10

Family

ID=4224281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104910A Expired EP0161545B1 (de) 1984-04-25 1985-04-23 Personensuchgerät für eine elektronische Uhr

Country Status (6)

Country Link
US (1) US4663624A (de)
EP (1) EP0161545B1 (de)
JP (1) JPS60235541A (de)
CH (1) CH654169GA3 (de)
DE (1) DE3564353D1 (de)
SG (1) SG64391G (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8923414B2 (en) 2011-12-13 2014-12-30 Northrop Grumman Guidance And Electronics Company, Inc. Systems and methods for adaptive sample quantization

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159713A (en) * 1985-11-27 1992-10-27 Seiko Corp. Watch pager and wrist antenna
JPS6378090A (ja) * 1986-09-17 1988-04-08 ア−ル・アウデマルズ　ソシエテ　アノニム 電子式識別装置
GB2201266A (en) * 1986-12-23 1988-08-24 Upperpace Limited A radio paging watch
US5012235A (en) * 1987-10-20 1991-04-30 Telefind Corporation Paging receiver with continuously tunable antenna and RF amplifier
US5052049A (en) * 1987-10-20 1991-09-24 Telefind Corporation Paging receiver with continuously tunable antenna
US4845485A (en) * 1987-12-29 1989-07-04 Motorola, Inc. Combined radio pager/timepiece apparatus with receiver desensitization protection
US4998093A (en) * 1988-12-16 1991-03-05 Benoit John J Portable personal electronic perimeter alarm
JPH05122137A (ja) * 1991-10-30 1993-05-18 Aiphone Co Ltd 位置情報送出機能付移動無線システム
JPH0666962A (ja) * 1992-07-02 1994-03-11 Seiko Instr Inc ページャ付電子時計
US5572488A (en) * 1993-12-17 1996-11-05 Seiko Communications Holding N.V. Wristwatch paging receiver having analog message display
ES2242701T3 (es) * 2001-12-01 2005-11-16 Siemens Building Technologies Ag Transmisor de alarma acustico para un avisador de peligro.
US7817500B2 (en) * 2006-03-10 2010-10-19 Idt Technology Limited Shock-activated switch device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH1546470A4 (de) * 1970-10-20 1972-09-15
US3937004A (en) * 1973-05-28 1976-02-10 Citizen Watch Co., Ltd. Portable miniature type information treating device
US4170769A (en) * 1978-09-06 1979-10-09 Gte Sylvania Incorporated Audio-detector alarm
JPS55147381A (en) * 1979-05-04 1980-11-17 Seiko Instr & Electronics Ltd Detector for electronic watch
DE2918531A1 (de) * 1979-05-08 1980-11-13 Provera Gmbh Elektronische uhr, insbesondere armbanduhr, mit alarmvorrichtung
DE2941388A1 (de) * 1979-10-12 1981-04-23 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung fuer eine elektronische uhr mit weckeinrichtung
JPS58100772A (ja) * 1981-12-10 1983-06-15 Seikosha Co Ltd 時計の圧電ブザ−駆動装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8923414B2 (en) 2011-12-13 2014-12-30 Northrop Grumman Guidance And Electronics Company, Inc. Systems and methods for adaptive sample quantization

Also Published As

Publication number Publication date
EP0161545A1 (de) 1985-11-21
JPH039659B2 (de) 1991-02-08
US4663624A (en) 1987-05-05
DE3564353D1 (en) 1988-09-15
SG64391G (en) 1991-09-13
CH654169GA3 (de) 1986-02-14
JPS60235541A (ja) 1985-11-22

Similar Documents

Publication Publication Date Title
EP1075098B1 (de) Elektronischer Wandler eines akustischen Signals in ein pseudo-digitales Signal und bidirektionelles Kommunikationsverfahren durch Schallwellen
EP0161545B1 (de) Personensuchgerät für eine elektronische Uhr
EP1312032B1 (de) Hochempfindlicher leser für passive transponder
FR2694422A1 (fr) Ensemble à circuit de déclenchement de lampes et de moteurs.
FR2831305A1 (fr) Circuit integre sans contact comprenant des moyens d'identification automatique de trame
CH586560A5 (de)
FR2607264A1 (fr) Perfectionnements aux dispositifs d'identification par proximite
EP0073776B1 (de) Elektrische meldevorrichtung mit mindestens einem empfänger und einem sender
CA1237472A (fr) Convertisseur de frequence statique de puissance
EP1207439B1 (de) Elektronische Uhr mit kapazitiven Tasten auf ihrem Abdeckglas
EP0393123A1 (de) Elemente zur erregung und abtastung von am reifen befindlichen modulen in einem fahrzeugreifenüberwachungssystem.
EP0712059B1 (de) Treiberschaltung für piezoelektrischen Vibrator
EP0193453B1 (de) Anordnung zur Überwachung der Impulsperiodendauer
FR2668280A1 (fr) Dispositif emetteur de sequences de signaux.
EP0319422A1 (de) Stundenzähler für Explosionsmotoren
EP0881623B1 (de) Schaltung zur Steuerung einer vibrierenden Membran
FR2651076A1 (fr) Circuit recepteur
FR2585846A1 (fr) Dispositif de localisation et/ou d'identification au moyen d'une carte emettrice
FR2794310A1 (fr) Dispositif de verrouillage de phase a consommation electrique reduite
FR2488069A1 (fr) Installation de transmission de signaux par le reseau de distribution d'energie electrique
FR2489988A1 (fr) Dispositif repondeur a commande magnetique et systeme d'identification et de tri d'objets mettant en oeuvre ce dispositif
FR2543712A1 (fr) Emetteur-recepteur acoustique pour localisation d'objets
EP0533584A1 (de) Drahtlose Information-Sende- und Empfangseinrichtung und Datenaustauschsystem mit einer solchen Vorrichtung
WO1995007516A1 (fr) Dispositif de reception et d'emission d'informations par voie radioelectrique
FR2649266A1 (fr) Systeme emetteur-recepteur haute frequence pour telealarme

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19860301

17Q First examination report despatched

Effective date: 19870624

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REF Corresponds to:

Ref document number: 3564353

Country of ref document: DE

Date of ref document: 19880915

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910322

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910415

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910418

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920423

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19921230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930101

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST