EP0563335A1 - Schliesssystem, z.b. zentralverriegelungssystem eines kfz. - Google Patents
Schliesssystem, z.b. zentralverriegelungssystem eines kfz.Info
- Publication number
- EP0563335A1 EP0563335A1 EP92912398A EP92912398A EP0563335A1 EP 0563335 A1 EP0563335 A1 EP 0563335A1 EP 92912398 A EP92912398 A EP 92912398A EP 92912398 A EP92912398 A EP 92912398A EP 0563335 A1 EP0563335 A1 EP 0563335A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transmitter
- receiver
- signals
- lock
- range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
- G07C2009/0019—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks the keyless data carrier having only one limited data transmission rangs
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
- G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
Definitions
- Locking system e.g. Central locking system of a motor vehicle
- a main problem of such methods is the avoidance of overreaches of the transmitter, which facilitate thefts - occasionally also the avoidance of underreaches, which make remote control more difficult or impossible.
- the invention relates to this main problem, namely the reliable automatic adaptive adjustment of such a range, which complicates thefts or burglaries and / or ensures the convenient remote control of lockable locks.
- the invention was initially developed for the special unidirectional motor vehicle locking system described in WO 90/14484 when it uses transmitter signals transmitted by radio.
- the invention is also particularly suitable for this.
- the invention can in principle also be used in many other locking systems:
- the transmitter signals can not only be transmitted by radio, e.g. in the kHz to GHz range, but also optically, e.g. in the infrared range.
- a preferred example, in which the invention can be used, is a motor vehicle locking system, namely a remote-controlled motor vehicle central locking system. Then the emitted transmitter signals are received by the receiver, which is, for example, hidden in the passenger compartment of the motor vehicle.
- That invented 1 locking system according to the invention can, however, also be used for other objects, also for different types of vehicles and for example also for buildings and garage doors.
- the transmitter can also - but does not have to - transmit digitally coded transmitter signals, instead of analog-coded transmitter signals, as soon as the user transmits the transmitter, e.g. an actuation button of the same, to open - possibly also to close - the cover (door, trunk °, etc.) of the opening.
- the receiver compares the received code with digits previously saved in the receiver, e.g. with bits previously stored in a binary memory of the receiver before it operates the locks of the locks concerned.
- any code can be used for the transmitter signals. So it can e.g. is a fixed code, which remains unchanged from operation to operation. However, it can also be an interchangeable code, which makes theft or burglary particularly difficult by changing the code from actuation to actuation according to certain rules or algorithms individually assigned to the relevant locking system. - In the invention, however, the transmitter signals do not need to represent any code at all; you can e.g. also represent a single, more or less long-lasting pulse.
- the receiver can either unlock and lock the lock in question - or together the locks in question - or only unlock or only lock. Perhaps the receiver can not only control the locking remotely, but can also open and / or close the covers (doors, lids, etc.) of the openings concerned by the receiver in a corresponding, staggered manner in time controls both the locking elements and an auxiliary motor which moves the relevant covers.
- the invention can also be a so-called bidirectional locking system, in which a dialogue takes place between the transmitter and the receiver as soon as a user operates the transmitter.
- it can also be a more or less strictly unidirectional locking system, in which there is no dialogue between the transmitter and the receiver and the reliable automatic adaptive adjustment of the range seems particularly difficult, e.g. for that in the
- WO 90/14 484 described unidirectional motor vehicle locking system.
- the task of preventing an inadvertent remote-controlled unlocking of the locks in question leads to constant maintenance of the UNLOCKED state of the locks in question - for example by an accidental pressing of an actuation button on the transmitter, which in turn happens to still happen is within easy reach of the receiver - which would mean that anyone could enter the vehicle afterwards - and to prevent the lock or locks from being unlocked and / or locked comfortably and reliably from the usual distance due to the range being too small can, namely to be able to automatically and adaptively avoid the ranges between the transmitter and the receiver that are too large and too small, which may even change greatly over time, and as far as possible independently of the tolerances, temperatures and aging of the components of the locking system, and • as independent of the state of charge as possible he possibly in
- FIG. 1 shows an example of the spatial distribution of components of this motor vehicle locking system without the need to enter the various lines between these components
- FIG. 2 shows a block diagram of these components.
- Both figures thus show a motor vehicle locking system according to the invention, which can be remotely controlled by transmitter signals I, in which, for example, is a central locking system for several locks L of several covers T of the openings.
- the user operates a portable transmitter S, shown in both figures, which serves as a key S.
- the transmitter S sends its transmitter signals I to the receiver E installed in the motor vehicle, for example triggered by actuation of a corresponding pushbutton of the transmitter S.
- the transmitter signals I can be, for example, UNLOCK transmitter signals I which use the control signal Z to unlock the relevant one or them Initiate locks L, and / or by LOCK transmitter signals I, which initiate the locking of these locks L by means of the control signal Z, but only in each case if the receiver E is within range W of the transmitter S.
- the transmitter signals I solve via the input stage A of the receiver E and via the output stage R of this receiver E a control signal Z only shown in FIG.
- This output stage R can be, for example, a relay R, or another type of control circuit R which supplies sufficient current strengths and which controls the locking element B by means of the control signal Z, this locking element B being, for example, a lock which locks the lock L and can be moved by magnetic coils Bolt B can be.
- the receiver E thus controls, caused by the transmitter signals I, the locking element B of at least one lock L of at least one cover T, e.g. the locking element B of the lock L of the driver's door T of the motor vehicle, - preferably only after checking the access authorization of the user of the transmitter S, namely e.g. after a comparison of the code received by the receiver E with corresponding digits previously stored in the receiver memory M.
- both figures show only a single lock L, the locking element B of which is actuated by means of the transmitter signals I.
- the user can control the interlocks B remotely by means of a transmitter signal I, or by means of a more or less precisely specified series of transmitter signals I, - for simplicity, however, only "transmitter signals I" are used here.
- this receiver E can have at least two states, namely ⁇ a first state in which it leaves the lock L in question in the locked state and in which it may also lock the previously unlocked lock L, and
- the lock L can inadvertently unlocked again - especially when it comes to radio transmitter signals I, because radio waves, due to their propagation characteristics - in contrast to infrared signals - can easily penetrate walls and also a pocket of the user and therefore an accidental triggering of the transmitter signals I also with the transmitter S already plugged in, also from a house and around corners.
- the range W of the transmitter S can, however, in itself also be subject to temporary fluctuations which occur during the operation of the transmitter S. These fluctuations in the range W are based e.g. on different external conditions such as temperature, or on the decrease in the battery voltage in the transmitter S.
- a maximum range W - or a corresponding maximum transmitter power or a corresponding maximum reception sensitivity - should be set as reliably as possible between the transmitter S and the receiver E, which only opens and locks the motor vehicle safely within one narrowly definable distance W to the vehicle from e.g. 10 m +/- 2 m allowed.
- the transmitter power S is adjusted correspondingly higher during its manufacture, then this transmitter S has too great a range W for a new battery, which entails the risk that the user inadvertently repeats the transmitter S within this large range W. can operate.
- the invention therefore relates to the problem with little effort for the transmitter S and for the receiver E.
- the receiver E constructed according to the invention namely automatically and adaptively adjusts the sensitivity of the receiver E and / or the transmitter power accordingly.
- the invention adopts the knowledge that the range W of the transmitter S can always be adjusted to its optimal setpoint value if the transmitter power and / or the sensitivity of the receiver are repeated at more or less regular intervals E is automatically and adaptively adjusted according to more or less regular, direct or indirect measurements of the respective maximum range W.
- the receiver E constructed according to the invention monitors - at least from time to time, e.g. immediately as part of each actuation of the lock of the lock L in question - a physical quantity of the received transmitter signals I, e.g. their performance or their field strength.
- the receiver E cf. the figure 2, e.g. in addition to its input stage A, or e.g. within this input stage A _ the unit V, which can also be used as a device V for monitoring that variable - e.g. for monitoring the received field strength of the transmitter signals I - and as a device V for adjusting the maximum range W, ie for adjusting the sensitivity of the receiver E.
- a physical variable, directly or indirectly, which is dependent on the range W, for example the transmitter power, of the transmitter S is measured more or less regularly and the sensitivity of the receiver E and / or the transmitter power is adjusted as a function thereof, that there is a well-defined reception area as the maximum range W.
- That unit V of the receiver E therefore measures that size at least indirectly and regulates, for example, the sensitivity of the input stage A by means of a corresponding feedback indicated in FIG. 2 - perhaps even without additionally the transmitter power - for example in the manner described below - to influence.
- the range W is optimally adapted - also to the respective state of charge the battery of the transmitter S and even any tolerances and aging of all components of the transmitter S and the receiver E.
- the adaptive adjustment according to the invention thus - at least from time to time, if not continuously with each actuation of the transmitter S - readjust the range W for the next actuations of the transmitter.
- the range W is therefore sufficiently large to allow a user of the locking system to enter his motor vehicle as soon as he approaches it
- the reception area is limited enough to ensure that the user no longer unintentionally actuates the locking of his motor vehicle by accidentally actuating the transmitter S away from the motor vehicle.
- a fairly precise, automatic and adaptive optimization of the range W is possible, for example, in that the receiver E — for example by means of intermediate storage of several values of the size determined by its unit V in its receiver memory M — has an average of several values that are monitored ⁇ speaking values determined and the range W adjusted according to the mean. Then the receiver E can, for example, adjust the sensitivity of its input stage A according to the average found. Further measures for adjusting the sensitivity of the receiver E and / or the transmission power of the transmitter S will be explained later.
- transmitter signals I which not only allow the locking itself to be controlled with a direct line of sight between the transmitter S and the receiver E, but above all also without a direct line of sight and even through Walls through and around obstacles, if the transmitter signals I are transmitted by radio, that is to say they have radio frequencies.
- the range W can be optimized even more automatically and adaptively by the transmitter S not - or not alone - monitoring the relevant size of the ENTRIEGEL and / or LOCK transmitter signals I itself.
- the transmitter S can namely - for example after the transmission of the ENTRIEGEL transmitter signal _ additionally send one or more further MESS transmitter signals I or measuring pulses I - for example several short measuring pulses I of a few msec in succession at intervals of 500 msec, namely for a total of 15 seconds,
- the receiver E alone or additionally - monitors the relevant variable - or the time profile of the relevant variable - of the received MESS transmitter signals I and
- the transmitter S can even send the MESS transmitter signal I or the MESS transmitter signals I every time after a transmitter signal serving for opening has been sent out I send out, in which case the unit V can optimize the setting of the maximum range W each time.
- the MEASUREMENT transmitter signals I can form a plurality of measurement pulses I which the transmitter S emits in succession at certain intervals, the size which the unit V monitors, e.g. represents the power curve or field strength curve immediately before, during and / or immediately after opening the cover T, and this unit V subsequently adjusts the sensitivity of the receiver E accordingly.
- the MESS transmitter signals I can also represent simple impulses, e.g. be sent at constant intervals. However, security against unauthorized unlocking can be increased by making it even more difficult for strangers to unlock the lock by recording the transmitter signals emitted by the transmitter and by later unauthorized transmission of these recorded transmitter signals:
- a locking system is particularly suitable for this purpose, the ENTRIE ⁇ GEL transmitter signals I in coded form - preferably according to one Alternating code - are broadcast, but then the MESS transmitter signals I are then transmitted in coded form.
- the time intervals of the MESS transmitter signals I and / or the pulse shape of the MESS transmitter signals I should preferably correspond to a fixed — or also alternating — code assigned to the transmitter S in question.
- the receiver E only unlocks the relevant lock L as long as not only the received UNLOCK transmitter signal I corresponds to the code assigned to it, but also the received MEASURING transmitter signals I correspond to the code assigned to them.
- This variant of the invention allows additional conditions to be set for unlocking, for example the condition described in more detail below that at least one pulse of the received MESS transmitter signal I must have a minimum field strength - otherwise Then the receiver E does not unlock the lock L.
- the transmitter S can also contain a transmitter memory N.
- This transmitter memory N causes the transmitter S: .n seconds after the transmission of a transmitter signal I serving for opening, that it sends out one or, at intervals, several, MESS transmitter signals I outside.
- the transmitter memory N can e.g. can be formed by a counter or timer or clock, in which case this transmitter memory N can then cause the transmitter S to transmit within the seconds after the ENTRIEGEL transmitter signal I - e.g. to send out a series of short MESS transmitter signals I within 20 seconds.
- the receiver does not even need to evaluate all of the MESS transmitter signals I sent:
- the receiver E is connected to a sensor K, which is fitted, for example, in the door handle G and which responds to contact by the user and which thereby opens the cover T or actuates the door handle G Cover T recognizes.
- a sensor K which is fitted, for example, in the door handle G and which responds to contact by the user and which thereby opens the cover T or actuates the door handle G Cover T recognizes.
- the range W can be optimized automatically and adaptively with particular precision if the distance between the transmitter S and the receiver E is defined fairly precisely by means of the sensor K during the MESS transmitter signals I, and in particular if the MESS transmitter signals I additionally have a total represent a series of short measuring impulses I lasting several seconds - whereby, because of the then particularly short distance of the transmitter S from the door handle G or from the receiver E, the transmitter powers during this monitoring can even be particularly low:
- the receiver E If the receiver E then additionally has the sensor K, which detects the opening of the cover T, or the touching or actuation of a corresponding handle G of the cover T, and then emits a sensor signal C, then the receiver E evaluate that variable alone with that relevant - or with those few relevant - MESS transmitter signals I which the receiver E receives immediately before, during and / or immediately after the sensor signal C occurs; - The receiver E can accordingly not only adjust a "second" range W (2) which corresponds to the maximum - e.g. 1 m - distance of the transmitter S from the receiver E during the occurrence of the sensor signal C corresponds, but also that first, comparatively much larger - e.g. 10 amount - range W from which the receiver is ready to provisionally recognize an ENTRY GEL transmitter signal I as such.
- sensors K can be, for example, a sensor K * which represents a touch sensor K fitted in the door handle G and touched by the user when it is opened, or
- the receiver memory M then does not need to evaluate the size of all received MESS transmitter signals I, but only the size of at most those few relevant MESS transmitter signals I which it receives approximately during the occurrence of the sensor signal C.
- the receiver E can even be constructed in this way, cf. the AND gate & in the output stage R of the receiver E in FIG. 2, that the control signal Z for unlocking the lock L is only given when both the sensor signal C and - more or less - the MEASUREMENT- Transmitter signal I acts on the output stage R via the input stage A.
- the relevant size of the MESS transmitter signal I occurring during the sensor signal C then causes the unit V to adjust the range W in advance for the next remote control of the locking system.
- the receiver E does not unlock the lock L immediately after receipt of the UNLOCK transmitter signal I, but the lock L only unlocks after ENTRIEGEL transmitter signals I have been received if the measurements of the relevant size (eg field strength) of the additionally transmitted MESS transmitter signals I showed that the currently received ENTRIEGEL transmitter signal I, based on the currently correct SET value of the adjustment the maximum range W, obviously must have been transmitted within this correct maximum range W; - Otherwise, the lock L in question remains locked.
- the relevant size eg field strength
- the receiver E can also be constructed or dimensioned in such a way that it only unlocks the lock L after receipt of an ENTRIEGEL transmitter signal I if at least at least one of the currently additionally received measurement pulses I has a greater field strength than the value for the maximum range W stored earlier, perhaps days or months ago.
- the receiver E can also be constructed or dimensioned differently: For this purpose, after receiving an ENTRIEGELsender signal I - even if this ENTRIEGELsender signal I is too small in itself - it can unlock the lock L in question. Then the receiver E immediately locks the lock L in question, e.g. after a waiting period of a few seconds has elapsed, unless by then the size of at least one of the MESS transmitter signals I measured by him is above that limit value which corresponds to a target range W which was previously valid therefor.
- the receiver E can then also contain the sensor K and only lock the lock L in question again after the waiting period has expired, if not in the receiver E by then the sensor signal C occurs and, if not until then, the size of at least one of the currently received, relevant MESS transmitter signals I measured by him is also above the limit value, which of the valid first or second ones - TARGET range corresponds to W. If the measured quantity is above the limit value, ie if the receiver E does not lock the lock L in question again, but leaves it unlocked beyond the waiting period, then the receiver E can also adjust the range W again.
- the invention allows a further route for a particularly precise automatic and adaptive — and then a particularly precise — optimization of the — then again “second” - range W by means of a precise definition of the distance from the transmitter S to the receiver E during the transmission of MEASURING transmitter signals I, in which case the transmitter powers can even be particularly low during monitoring:
- the transmitter S together with the ignition key can form a structural unit S, the transmitter S transmitting one or more MEAS transmitter signals I precisely while the ignition key S is in the ignition lock.
- the receiver E monitors the relevant variable, or the time profile of the relevant variable, of the MESS transmitter signals I received from the inserted ignition key and readjusts accordingly the ones assigned to the UNLOCK transmitter signals I - and / or LOCK transmitter signals I
- the transmitter power of the transmitter S in question can also be set automatically and adaptively, exclusively or additionally, in that the transmitter S has its own additional receiver (not shown in the figures for reasons of clarity) and an additional receiver Adjustment unit for adjusting its own which contains power, the receiver E also containing its own additional transmitter which, in order to adjust the transmitter power, sends an adjustment signal to the additional receiver of the transmitter S in question.
- the unit can therefore, above all to avoid undesired overreaches W of the transmitter S - which make it easier for strangers to receive and store the transmitted code or the transmitted transmitter signal in order to later use such stored data forbidden for burglary purposes V after monitoring the size, deliver a setting signal to the transmitter S which adjusts the transmitter power to determine the maximum range W.
- the transmitter S can adjust its own transmitter power to the minimum transmitter power required by the receiver E by means of its adjustment unit and by means of the adjustment signal.
- a particularly precise automatic and adaptive optimization of the range W can also be achieved without great effort for the receiver E in that the receiver E adjusts its own sensitivity to ENTRIEGEL transmitter signals so that when the transmitter S is outside the range adjusted for the ENTRIEGEL transmitter signals I W is, although the UNLOCK transmitter signal I can clearly receive, but then still does not initiate the unlocking by means of the signals Z, and
- the receiver E - for example in its receiver memory M - can then even record that it did receive transmitter signals I, but which were classified as too weak for it to actuate the locking element B.
- the security against unintentional unlocking can be further increased by means of two different sensitivities of the receiver E.
- the receiver E can be designed in such a way that it additionally adjusts its own sensitivity to LOCK transmitter signals I so that
- the transmitter S emits its UNLOCK transmitter signals I with significantly less power than its LOCK transmitter signals I.
- the security against unintentional unlocking - especially against unintentional maintenance of the UNLOCKED state of the vehicle is further increased by using two different transmitter powers it is achieved that the maximum (first) range W for LOCK transmitter signals is greater than the maximum (first) range W for ENTRIE ⁇ GEL transmitter signals.
- the user can also lock the lock in question from a distance from which he could no longer unlock this lock.
- the single individual transmitters S initially have different transmitter powers and thus different ranges W.
- the same range W for each of the individual transmitters S and thereby to ensure safe operation within the prescribed range of, for example, 10 m +/- 2 distance from the motor vehicle, one for each transmitter S can correspond to the different transmitter output other sensitivity of the receiver E can be set, for example by storing different TARGET sensitivities in the receiver memory M for the various transmitters S.
- the range values W of several different transmitters S can thus also be optimized automatically and adaptively by using a receiver E in a motor vehicle locking system with several transmitters S with differently coded transmitter signals I and with different transmitter power from one another , which has a receiver memory M and which adjusts its own sensitivity when or after receiving a coded transmitter signal I, which contains a key code identifying the respective transmitter S, from transmitter S to transmitter S differently.
- the receiver E can store in the receiver memory M those various optimal setpoint values of the sensitivities which are assigned to the individual transmitters S in each case.
- the receiver E can adjust its own sensitivity differently from transmitter S to transmitter S: for example, receiver E - when or after receiving a coded transmitter signal I emitted by one of the various transmitters S, which transmits one transmitter S identifying key code contains - in each case corresponding to that TARGET value assigned to the transmitter S in question and stored in the receiver memory M.
- FIG. 2 shows a number of individual structural units within the receiver E, cf. A, M, V and R.
- the receiver E can also be a suitably constructed computer with a suitably programmed microprocessor, which carries out the relevant functions of at least some of these components of the receiver E.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92912398A EP0563335B1 (de) | 1990-12-21 | 1991-05-14 | Schliesssystem, z.b. zentralverriegelungssystem eines kfz |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP90125290 | 1990-12-21 | ||
EP90125290 | 1990-12-21 | ||
DE9102747U | 1991-03-07 | ||
DE9102747U DE9102747U1 (de) | 1990-12-21 | 1991-03-07 | |
EP92912398A EP0563335B1 (de) | 1990-12-21 | 1991-05-14 | Schliesssystem, z.b. zentralverriegelungssystem eines kfz |
PCT/DE1991/000395 WO1992011431A1 (de) | 1990-12-21 | 1991-05-14 | Schliesssystem, z.b. zentralverriegelungssystem eines kfz |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0563335A1 true EP0563335A1 (de) | 1993-10-06 |
EP0563335B1 EP0563335B1 (de) | 1996-08-28 |
Family
ID=25957936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92912398A Expired - Lifetime EP0563335B1 (de) | 1990-12-21 | 1991-05-14 | Schliesssystem, z.b. zentralverriegelungssystem eines kfz |
Country Status (5)
Country | Link |
---|---|
US (1) | US5517189A (de) |
EP (1) | EP0563335B1 (de) |
JP (1) | JP3480497B2 (de) |
DE (2) | DE9102747U1 (de) |
WO (1) | WO1992011431A1 (de) |
Cited By (1)
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FR2783956A1 (fr) | 1998-09-28 | 2000-03-31 | Siemens Automotive Sa | Procede de localisation d'un vehicule automobile |
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FR2700625B1 (fr) * | 1993-01-19 | 1995-02-17 | Renault | Procédé de verrouillage d'un véhicule commandé par un signal radio et dispositif de mise en Óoeuvre. |
US5377270A (en) * | 1993-06-30 | 1994-12-27 | United Technologies Automotive, Inc. | Cryptographic authentication of transmitted messages using pseudorandom numbers |
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DE4430360C1 (de) * | 1994-08-26 | 1995-10-05 | Siemens Ag | Diebstahlschutzsystem für ein Kraftfahrzeug |
FR2726846B1 (fr) * | 1994-11-14 | 1996-12-13 | Valeo Securite Habitacle | Systeme de fermeture et d'ouverture des ouvrants d'un vehicule dotes de serrures electriques |
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DE19645808B4 (de) * | 1996-11-07 | 2005-12-15 | Kiekert Ag | Kraftfahrzeug mit einer Zentralverriegelungsanlage sowie mit einer Fernbetätigungsinstallation |
US5850188A (en) * | 1996-12-10 | 1998-12-15 | United Technologies Automotive, Inc. | Self-diagnosing remote entry apparatus |
JPH1159331A (ja) * | 1997-08-27 | 1999-03-02 | Denso Corp | キーレスエントリシステム用の送信機及びキーレスエントリシステム |
DE19801885A1 (de) * | 1998-01-20 | 1999-07-22 | Mannesmann Vdo Ag | Empfangseinrichtung eines Fernbedienungssystems und Verfahren zum Betreiben eines Fernbedienungssystems |
DE19809433C1 (de) * | 1998-03-05 | 1999-06-24 | Siemens Ag | Verfahren zum Initialisieren eines Diebstahlschutzsystems für ein Kraftfahrzeug |
US5933074A (en) * | 1998-06-23 | 1999-08-03 | Ut Automotive Dearborn, Inc. | Remote control transmitter broadcasting RF signals conveying plural information components |
DE19861116C2 (de) * | 1998-07-17 | 2002-05-02 | Siemens Ag | Zugangskontrolleinrichtung für ein Kraftfahrzeug und Verfahren zum Einstellen der Empfindlichkeit der Zugangskontrolleinrichtung |
DE19836957C1 (de) * | 1998-08-14 | 1999-09-30 | Siemens Ag | Diebstahlschutzeinrichtung für ein Kraftfahrzeug und Verfahren zum Betreiben der Diebstahlschutzeinrichtung |
US6628956B2 (en) * | 1999-03-15 | 2003-09-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Adaptive power control in a radio communications systems |
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- 1991-05-14 JP JP50844491A patent/JP3480497B2/ja not_active Expired - Fee Related
- 1991-05-14 DE DE59108126T patent/DE59108126D1/de not_active Expired - Fee Related
- 1991-05-14 EP EP92912398A patent/EP0563335B1/de not_active Expired - Lifetime
- 1991-05-14 WO PCT/DE1991/000395 patent/WO1992011431A1/de active IP Right Grant
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FR2783956A1 (fr) | 1998-09-28 | 2000-03-31 | Siemens Automotive Sa | Procede de localisation d'un vehicule automobile |
WO2000019047A1 (fr) | 1998-09-28 | 2000-04-06 | Siemens Automotive S.A. | Procede de localisation d'un vehicule automobile |
Also Published As
Publication number | Publication date |
---|---|
JP3480497B2 (ja) | 2003-12-22 |
DE9102747U1 (de) | 1991-05-23 |
US5517189A (en) | 1996-05-14 |
JPH06503613A (ja) | 1994-04-21 |
EP0563335B1 (de) | 1996-08-28 |
WO1992011431A1 (de) | 1992-07-09 |
DE59108126D1 (de) | 1996-10-02 |
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