GB2192665A - Control apparatus - Google Patents

Control apparatus Download PDF

Info

Publication number
GB2192665A
GB2192665A GB8717117A GB8717117A GB2192665A GB 2192665 A GB2192665 A GB 2192665A GB 8717117 A GB8717117 A GB 8717117A GB 8717117 A GB8717117 A GB 8717117A GB 2192665 A GB2192665 A GB 2192665A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
device
keying
operating
apparatus according
arranged
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
Application number
GB8717117A
Other versions
GB8717117D0 (en )
GB2192665B (en )
Inventor
Ken Sharman
Derek Griffin
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.)
* NEIMAN SECURITY PRODUCTS Ltd
NEIMAN SECURITY PRODUCTS LIMIT
Original Assignee
Neiman Security Products Limit
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

Links

Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F7/00Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/0866Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by active credit-cards adapted therefor
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C5/00Registering or indicating the working of vehicles
    • G07C5/008Registering or indicating the working of vehicles communicating information to a remotely located station
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual entry or exit registers
    • G07C9/00007Access-control involving the use of a pass
    • G07C9/00015Access-control involving the use of a pass the pass having a variable code, e.g. varied by the controlling system
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual entry or exit registers
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F7/00Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/0873Details of the card reader
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME 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
    • G07C9/00Individual entry or exit registers
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753Electronically 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
    • G07C2009/00769Electronically 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
    • G07C2009/00785Electronically 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 by light

Abstract

The control apparatus comprises a keying device 2 and an operating device 4, both devices being provided with infra-red transmitters 10, 18 and receivers 12, 20 and each device comprising an electronic system (Figs. 2, 3 respectively) with a microprocessor and memories; the keying device 2 is actuable to transmit a signal to the operating device receiver 18 and the device 4 responds to send a signal to the device 2 which transmits a signal to device 4 which responds if data match is appropriate. The device 4 may operate to open a lock e.g. by means of a solenoid and/or motor drive. The operating device could be utilised as a tachograph and apparatus for charging or payment for goods or services may also be provided with the control apparatus. Figs. 4 and 5 show flow charts of program sequence in the microprocessors. Microprocessor in device 4 may have program with constraints such as time of day or 'voice prints'. <IMAGE>

Description

SPECIFICATION Control apparatus This invention relates to control apparatus for security functions such as identification, the operation of locks, and the retrieval of secure information.

The invention is particularly, although not necessarily exclusively, concerned with control apparatus comprising a portable keying device that can actuate an operating device remotely, such as a remote control entry system, already known per se, in which an infra-red beam is emitted from a user's keying device to transmit coded data to an operating device that actuates a lock.

According to the present invention, there is provided control apparatus comprising an operating device and a keying device for cooperation with the operating device, both devices being provided with radiation transmitting and receiving means for communicating data remotely from each device to the other, each device comprising data storage means and processing means for operating on data from the storage means of that device and on data transmitted to that device by the transmitting means of the other device, the keying device being arranged to transmit data for actuating the operating device after a (predetermined) response has been received from the transmitting means of the operating device to a preceding data transmission from the keying device.

The keying and operating devices can comprise programmable microprocessors. The employment of such microprocessors facilitates the large scale manufacture of devices which are individually matched to cooperate with selected other devices, e.g. each keying device being uniquely matched to a single operating device. It also can permit the reprogramming of the devices, e.g. to allow a keying device to be used with a different operating device, and depending upon the capacity of the microprocessors can allow a variety of multiple functions to be performed.

By the use of the microprocessors, programs can be executed to generate and verify coded sequences of data passing between the keying device and the operating device. Preferably the data transmitted between the devices for actuating an operating device comprise security codes based on random number sequences and may be arranged to change each time a device is used. In conjunction with the programs stored in the devices this can provide a very secure means of communication between specific keying and operating devices.

Apparatus according to the invention can form part of a much larger information and/or control system. By linking a number of operating devices to a central computer it is possible to compile records of the use of the keying and operating devices individually or in any desired grouping, and the operating devices may be programmed so as to permit or deny access dependent upon a variety of events.

As compared with the example previously given of a known infra-red remote entry system which transmits coded information from the keying device to operating device only, it will be noted that in the present invention the information flow is bidirectional. The operating device can also send information to the keying device in addition to key system information transmitted by the keying device. This allows the use of sophisticated coding formats for the data, greatly improving the security of the system, and also-makes it possible to communicate secondary data to the keying -device, such as to indicate if the lock has been opened since that particular keying device was last used.

The invention will be described in more detail, by way of example, with reference to the accompanying drawings, in which: Fig. 1 is a schematic outline of a remote entry system according to the invention, Figs. 2 and 3 are block diagrams of the electronic systems in the keying and operating devices of Fig. 1, and Figs. 4 and 5 are flow charts of the program sequence in the microprocessors of the respective devices.

Fig. 1 iliustrates a keying device 2 and an operating device 4 of a remote entry system.

The keying device, which is of a size to be conveniently held in the hand, comprises a microprocessor 6 and associated stores 6a, powered by a battery supply 8. At one end of the device, there is an infra-red transmitter 10 and a receiver 12 both oriented in the same direction. The operating device also carries a microprocessor 14 and associated stores 14a and, as in this example the operating device is part of a fixed installation, it can be mainspowered (not shown). The operating device is similarly provided with an infra-red transmitter 18 and receiver 20 and has an operating output terminal 22 for control of a solenoid (not shown) that opens the lock of the entry system. An auxiliary port 24 is provided in the operating device, e.g. for monitoring the operation of the device or for reprogramming the microprocessor.It will be understood that a similar reprogramming port can be provided on the keying device.

Block diagrams of the electronic systems in the keying device and in the operating device are shown in Figs. 2 and 3, respectively. In the keying device, the microprocessor has access to an EPROM 32, which holds an identification number for the device in addition to an operating program, and to a RAM 34. The transmitter 10, receiver 12 and an actuating switch 28 access the microcomputer through I/O ports 36. The operating device similarly has an EPROM 42 and RAM 44 linked to the microprocessor, and I/O ports 46 include an output port to a solenoid 48 for the entry system lock 50 and an I/O port 52 to a central computer or a local area network as well as the ports to the transmitter 18 and from the receiver 20.

The flow charts of Figs. 4 and 5 illutrate program sequences for the microprocessors 6, 14 respectively. When the user wishes to open the lock he points the transmitter 10 of the keying device towards the receiver 20 of the operating device and presses actuating button 28. The infra red Units of the two devices may conveniently have an operating range of up to 10 meters. The microprocessor 6 thereupon generates a "start up" signal in the form of a specified digital pattern, which is carried on the transmitted infra-red beam by modulation of frequency and/or phase and/or amplitude. The operating device receiver 18 passes the signal to the microprocessor 14 which thereupon generates an interrogation signal, transmitted from the transmitter 18 to the receiver 12 asking the keying device for its identification number.

For this purpose the microprocessor 14 generates a random binary number of determined length and the microprocessor 6 em plbys that interrogation signal for a predetermined numerical calculation based upon the internal identification number stored in its EP ROM 32. (It will be understood that each different keying device or any number of a group of keying devices can be given a unique identification number that is held permanently, whether as software or hardwired.) The calculation results then transmitted by the infrared beam to the operating device where the microprocessor 14 attempts to verify whether the result is appropriate for a keying device having access to the lock.The microprocessor EPROM 42 can contain a single identification number or a series of numbers of the keying devices authorised to open the lock and in the latter case the microprocessor can operate on these numbers in turn using the calculation result received from the keying device as a data input. If a match is found by the operating device microprocessor, the device outputs an actuating signal to the solenoid that opens- the lock. If no such match can be made with the data input, the opening procedure will be shut down and the microprocessor 14 will be put in a state of readiness for a further start up signal.

Once a match has been found, in the simplest case the sequence is completed by the microprocessor 14 outputting in an actuator signal to the solenoid 48 to open the lock. It is possible, however, to precede this step with a further exchange of data between the two devices. This second stage exchange can begin with an acknowledgement signal from the operating device where the keying device identification number has been matched, a first part of the signal having a fixed pattern to identify its function and the remaining part containing secondary, application-dependent information, e.g. how many times the lock has been opened since last opened by that same keying device. It will be understood that the keying device may include display means for this information and/or an output port for connection to a display device.When the microprocessor 6 has performed on the operating device signal it may actuate a reply to the operating device, either simply as an acknowledgement of the signal or in order to continue the exchange of signals as may need to be done several times if a significant amount of information is to be transferred between the two devices. At the predetermined end of the sequence, the keying device transmits a fixed pattern signal to the operating device as a "close down" signal.

The "close down" signal causes the microprocessor 14 to operate on secondary information received from the keying device subsequent to its recognition of the identity of the keying device. Dependent upon the results of the computation the operating device may actuate opening of the lock, e.g. to a solenoid 48 indicated in Fig. 3 and/or a motor drive.

The microprocessor 14 may also evaluate whether the keying device is authorised to initiate some second stage function of the operating device. The "close down" signal terminating the output from the keying device may trigger other outputs from the microprocessor 14, e.g. of data concerning the transaction to a central store.

The required sequence of operations having been completed, the microprocessors in both devices go to the standby mode in a low power consumption state until a further sequence is triggered from the keying device.

The total time for the sequence of operations will be dependent upon the amount of secondary information transmitted between the devices, but may be in the order of tens of milliseconds.

During a data exchange sequence, the microprocessors also monitor the time taken and will abort the sequence if a predetermined period is exceeded. Both devices thus go back to the standby mode if there has been a failure to complete the sequence, e.g. if the keying device fails to transmit an acknowledge ment signal because the user points the device in the wrong direction or because an obstacle passes between the keying and operat ing devices.

It may be noted that the unique identification number given to the keying device is not transmitted from the device-what is transmitted is only a result of a calculation in which the identification number is one input.

The calculation can be of a kind in which a very large number of results are possible and it can use a number randomly generated in the operating device (and therefore different each time). These measures can make it virtually impossible for anyone to get unauthorised access by random attempts. For example, the devices are preferably arranged to work with long code patterns (e.g. 64 bits) so that it becomes physically impossible to try all possible code patterns.

As a further specific security measure, it can be ensured that the numerical calculation is non-invertible and that a very large number of possible key identification numbers could be associated with a given random number data and calculation result.

The calculation can be designed to obstruct any attempt to determine the identification number of the key by observing the data of the random number and the calculation result passing between the two devices. Contributing to the security of the apparatus is the fact that the information passing between the devices appears to be different to an outside observer every time a keying device is used, because the interrogation and identification sequence is based upon random numbers generated in the operating device microprocessor.

Another possible precaution would be to program the microprocessor 14 to recognize the use of unauthorised keying devices, so that it can signal a warning after a preset number of unauthorised attempts at access.

Within the program of the microprocessor 14 may be other constraints for the authorisation of a particular keying device, e.g. in dependence upon the time of day or on other sensory inputs indentiying the user, e.g. "voice prints".

The identification calculation can also be designed so that the result for a given random number input to a keying device will be unique to that particular device or a corresponding group of keying devices, but it also permits the provision of "pass keys", i.e. keying devices able to operate on a group of locks, without reducing the degree of security. In fact with multiple user operation it is possible to monitor each use of the operating device so as to provide a record of the times and identifications of those keying devices that have opened the lock or accessed the information controlled by the operating device.

While the illustrated example is of an apparatus functioning primarily as a remote-operated lock, the invention can be used simply for the remote transmission of secure information, or purely for identification purposes. As an example of the former, with an operating device of the control apparatus fitted in a road vehicle, it can be used to store and output the same information as commercial vehicle tachographs and could provide more reliable information than the mechanical systems in general use today. Such apparatus can also have details of the driver keyed in, possibly using an analogous keying device, to provide more complete information.

To summarise some of its possible applications, apparatus according to the invention can be used in the case of road transport for remote door opening, for the allocation of a group of keys to a particular car (e.g., as a family or a company vehicle), allocation of a group of cars to one or more particular keys (e.g. a master key for a car rental fleet) denial of access to the vehicle after a given event such as the expiry of time or credit on a rented vehicle, and the rapid reissue of new keys after loss if the driver can give his key device identity number. The operating device may be arranged to actuate other mechanisms than simply locking systems-for example the keying device may store information about the individual driver's desired seat and steering wheel position for these to be adjusted after the actuation of the operating device.

Readout of the running of a commercial vehicle in the manner of a tachograph is also possible, with identification of the driver if desired. Another possible use of the invention in the information mode would be to notify of previous access to the vehicle, which could be extended to include warning of detected offensive materials such as explosives in or around the vehicle by providing appropriate sensor inputs to the operating device in the vehicle.

Many of the functions referred to in connection with road transport can also be obtained by the use of the control apparatus according to the invention in domestic, commercial and industrial buildings. In this context it may be more significant for the apparatus to monitor the time each of the number of locks throughout the building is opened and by whom, and a central computer may collate the information from a number of operating device microprocessors networked together in a large building. A wide range of permutations and combinations of group and master keys can be achieved, which may be required in a large building such as a hotel where access to particular rooms will depend upon a person's function within the organisation. A further advantage particularly applicable to the use of the apparatus in a hotel is that there can be a facility for reprogramming keying devices as residents and personnel come and go.

Apparatus for charging or payment for goods and services may also be provided with control apparatus according to the invention, e.g. as a means of access to a computercontrolled payment system.

Claims (18)

1. Control apparatus comprising an operating device and a keying device, both devices being provided with radiation transmitting and receiving means for communicating data re motely from each device to the other, each device comprising data storage means and processing means for operating on data from the storage means of that device and on data transmitted through that device by the transmitting means of the other device, the keying device being arranged to transmit data for actuating the operating device after a response has been received from the transmitting means of the operating device to a preceding data transmission from the keying device.
2. Apparatus according to Claim 1 when said operating device is arranged to respond to the keying device with a security code signal to be utilised by the keying device for generating an actuating output from the keying device, said operating means being arranged to be actuated by an output signal from the keying device dependent upon the security code signal utilised in the keying device.
3. Apparatus according to Claim 2 wherein the operating device is arranged to change said security code signal in subsequent responses.
4. Apparatus according to any one of the preceding claims comprising means for terminating the exchange of data between the keying and operating devices after a predetermined period.
5. Apparatus according to any one of the preceding claims wherein the keying device comprises means for limiting its operation to specific periods and/or users.
6. Apparatus according to any one of the preceding claims wherein the operating device is arranged to transmit data to the keying device after actuation thereby.
7. Apparatus according to any one of the preceding claims wherein the operating device is arranged to transmit data to an external store upon actuation by said keying device.
8. Apparatus according to claim 6 or claim 7 when said data from the operating device is arranged to comprise information on the times of actuation and/or the identification of the keying devices co-operating with it.
9. Apparatus according to any one of claims 6 to 8 arranged to provide in said data information on previous actuation by another keying device.
10. Apparatus according to any one of claims 6 to 9 arranged to provide in said data information about previous attempts at unauthorised access to the operating device.
11. Apparatus according to claim 6 or claim 10 wherein the keying device comprises display means and/or connection means to a display for data received from the operating device.
12. Apparatus according to any one of the preceding claims wherein the operating device is connected to external sensing means for the transmission of information from said sensing means to the keying device.
13. Apparatus according to any one of the preceding claims wherein the operating device is associated with a vehicle and is arranged to transmit data to a vehicle use recording system resulting from its operation by the or each keying device.
14. Apparatus according to claim 13 wherein means are provided for the identification of the vehicle user in said data transmission.
15. Apparatus according to any one of the preceding claims wherein the operating device is installed in a vehicle and is arranged to store information about an individual driver's seat position for actuation of a seat adjustment mechanism after actuation through a keying device.
16. Apparatus according to any one of the preceding claims wherein the operating device is associated with a computer-controlled payments system.
17. Apparatus according to any one of the preceding claims comprising a plurality of operating devices and a plurality of keying devices, the individual keying devices being arranged to operate with different specific individual ones and/or groups of said operating devices.
18. Control apparatus constructed and arranged for use and operation substantially as described herein with reference to the accompanying drawings.
GB8717117A 1986-07-18 1987-07-20 Control apparatus Expired - Fee Related GB2192665B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8617662A GB8617662D0 (en) 1986-07-18 1986-07-18 Control apparatus

Publications (3)

Publication Number Publication Date
GB8717117D0 true GB8717117D0 (en) 1987-08-26
GB2192665A true true GB2192665A (en) 1988-01-20
GB2192665B GB2192665B (en) 1990-11-21

Family

ID=10601348

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8617662A Pending GB8617662D0 (en) 1986-07-18 1986-07-18 Control apparatus
GB8717117A Expired - Fee Related GB2192665B (en) 1986-07-18 1987-07-20 Control apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8617662A Pending GB8617662D0 (en) 1986-07-18 1986-07-18 Control apparatus

Country Status (1)

Country Link
GB (2) GB8617662D0 (en)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213015A (en) * 1987-11-27 1989-08-02 David Leslie Walker Disabled persons aid system
GB2219676A (en) * 1988-06-10 1989-12-13 Omni Services Limited A locking control system for preventing unauthorized entry into a secure area
FR2646033A1 (en) * 1989-04-18 1990-10-19 Labo Electronique Physique Circuit for monitoring and data transmission device provided with such a circuit
EP0395596A2 (en) * 1989-04-28 1990-10-31 Autonix S.R.L. An improved anti-theft system, particularly for motor vehicles
FR2668629A1 (en) * 1990-10-30 1992-04-30 Sagem portable payment terminals and network of such terminals.
WO1992014222A1 (en) * 1991-01-31 1992-08-20 Robert Alan Reid Tait Non-contacting transaction system
ES2038073A1 (en) * 1990-07-20 1993-07-01 Elgelec Infra-red device comprising a function "clock" of food.
EP0582081A2 (en) * 1992-06-29 1994-02-09 Honda Giken Kogyo Kabushiki Kaisha Personal data recording and reproducing device for use in vehicle
EP0592166A2 (en) * 1992-10-05 1994-04-13 Matra Marconi Space UK Limited A tachograph
EP0607494A2 (en) * 1993-01-21 1994-07-27 VDO Adolf Schindling AG Car user recording device
WO1994023164A1 (en) * 1993-03-30 1994-10-13 Lennart Eriksson A method and an arrangement for closing device control
EP0635800A1 (en) * 1993-07-23 1995-01-25 Koninklijke PTT Nederland N.V. System and device for the transfer of vehicle data
US5387784A (en) * 1990-10-30 1995-02-07 Societe D'applications Generales D'electricite Et De Mecanique Sagem Portable payment terminals and network for such terminals
GB2292413A (en) * 1994-08-16 1996-02-21 Haldo Dev Ltd Street furniture fastenings
US5550358A (en) * 1991-01-31 1996-08-27 Tait; Robert A. R. Non-contacting transaction system
WO1996032556A1 (en) * 1994-03-17 1996-10-17 Finnplastro Oy An arrangement and a method for locking arrangements
FR2733954A1 (en) * 1995-05-09 1996-11-15 Siemens Ag Method for operating an anti-theft device for motor vehicle
FR2743652A1 (en) * 1996-01-16 1997-07-18 Telecommunications Sa Infra-red key commanded lock system for secure doors
US5650868A (en) * 1995-06-07 1997-07-22 Compaq Computer Corporation Data transfer system
EP0807732A2 (en) * 1996-05-16 1997-11-19 Sony Corporation Checking of identification signals
EP0807733A2 (en) * 1996-05-16 1997-11-19 Sony Corporation Identification signal checking apparatus and methods
EP0808972A2 (en) * 1996-05-20 1997-11-26 Sony Corporation Identification signal registering method and apparatus
FR2749036A1 (en) * 1996-05-24 1997-11-28 Ma Bunn Sieng Access control device for a programmable electronic door lock
WO1998034201A1 (en) * 1997-02-04 1998-08-06 Robert Bosch Gmbh Method for operating a remote-control device and a remote-control device
WO1999061732A1 (en) * 1998-05-27 1999-12-02 Lancap Ab An electronic lock
EP0870889A3 (en) * 1997-04-07 2001-04-25 Eaton Corporation Keyless motor vehicle entry and ignition system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1556186A (en) * 1975-08-14 1979-11-21 Matsushita Electric Ind Co Ltd Automatic vending systems
GB1572845A (en) * 1976-03-18 1980-08-06 Matsushita Refrigeration Vending apparatus
GB1579399A (en) * 1976-04-29 1980-11-19 Dils M A Remote reading of meters
EP0151087A2 (en) * 1984-01-27 1985-08-07 Angewandte Digital Elektronik GmbH Device for two-way interchange of information

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1556186A (en) * 1975-08-14 1979-11-21 Matsushita Electric Ind Co Ltd Automatic vending systems
GB1572845A (en) * 1976-03-18 1980-08-06 Matsushita Refrigeration Vending apparatus
GB1579399A (en) * 1976-04-29 1980-11-19 Dils M A Remote reading of meters
EP0151087A2 (en) * 1984-01-27 1985-08-07 Angewandte Digital Elektronik GmbH Device for two-way interchange of information
US4602253A (en) * 1984-01-27 1986-07-22 Angewandte Digital Elektronik Gmbh Apparatus for mutual information transmission in a lock and key system

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2213015A (en) * 1987-11-27 1989-08-02 David Leslie Walker Disabled persons aid system
GB2219676A (en) * 1988-06-10 1989-12-13 Omni Services Limited A locking control system for preventing unauthorized entry into a secure area
FR2646033A1 (en) * 1989-04-18 1990-10-19 Labo Electronique Physique Circuit for monitoring and data transmission device provided with such a circuit
EP0393774A1 (en) * 1989-04-18 1990-10-24 Laboratoires D'electronique Philips Circuit and data transmission device containing such activation
US5262885A (en) * 1989-04-18 1993-11-16 U.S. Philips Corporation Control circuit and data transmission device provided with such a circuit
EP0395596A2 (en) * 1989-04-28 1990-10-31 Autonix S.R.L. An improved anti-theft system, particularly for motor vehicles
EP0395596A3 (en) * 1989-04-28 1991-03-20 Autonix S.R.L. An improved anti-theft system, particularly for motor vehicles
ES2038073A1 (en) * 1990-07-20 1993-07-01 Elgelec Infra-red device comprising a function "clock" of food.
FR2668629A1 (en) * 1990-10-30 1992-04-30 Sagem portable payment terminals and network of such terminals.
EP0484198A1 (en) * 1990-10-30 1992-05-06 Societe D'applications Generales D'electricite Et De Mecanique Sagem Portable payment terminals and network of such terminals
US5387784A (en) * 1990-10-30 1995-02-07 Societe D'applications Generales D'electricite Et De Mecanique Sagem Portable payment terminals and network for such terminals
WO1992014222A1 (en) * 1991-01-31 1992-08-20 Robert Alan Reid Tait Non-contacting transaction system
US5550358A (en) * 1991-01-31 1996-08-27 Tait; Robert A. R. Non-contacting transaction system
EP0582081A3 (en) * 1992-06-29 1995-09-27 Honda Motor Co Ltd Personal data recording and reproducing device for use in vehicle
EP0582081A2 (en) * 1992-06-29 1994-02-09 Honda Giken Kogyo Kabushiki Kaisha Personal data recording and reproducing device for use in vehicle
EP0592166A2 (en) * 1992-10-05 1994-04-13 Matra Marconi Space UK Limited A tachograph
EP0592166A3 (en) * 1992-10-05 1995-04-12 Matra Marconi Space Uk Ltd A tachograph.
EP0607494A2 (en) * 1993-01-21 1994-07-27 VDO Adolf Schindling AG Car user recording device
EP0607494A3 (en) * 1993-01-21 1995-10-11 Vdo Schindling Car user recording device.
WO1994023164A1 (en) * 1993-03-30 1994-10-13 Lennart Eriksson A method and an arrangement for closing device control
EP0635800A1 (en) * 1993-07-23 1995-01-25 Koninklijke PTT Nederland N.V. System and device for the transfer of vehicle data
NL9301301A (en) * 1993-07-23 1995-02-16 Nederland Ptt A system and apparatus for the transfer of vehicle data.
WO1996032556A1 (en) * 1994-03-17 1996-10-17 Finnplastro Oy An arrangement and a method for locking arrangements
GB2292413A (en) * 1994-08-16 1996-02-21 Haldo Dev Ltd Street furniture fastenings
GB2292413B (en) * 1994-08-16 1997-09-03 Haldo Dev Ltd Articles of street furniture
FR2733954A1 (en) * 1995-05-09 1996-11-15 Siemens Ag Method for operating an anti-theft device for motor vehicle
US5650868A (en) * 1995-06-07 1997-07-22 Compaq Computer Corporation Data transfer system
FR2743652A1 (en) * 1996-01-16 1997-07-18 Telecommunications Sa Infra-red key commanded lock system for secure doors
EP0807732A3 (en) * 1996-05-16 2000-10-25 Sony Corporation Checking of identification signals
EP0807732A2 (en) * 1996-05-16 1997-11-19 Sony Corporation Checking of identification signals
EP0807733A3 (en) * 1996-05-16 2000-12-06 Sony Corporation Identification signal checking apparatus and methods
EP0807733A2 (en) * 1996-05-16 1997-11-19 Sony Corporation Identification signal checking apparatus and methods
EP0808972A2 (en) * 1996-05-20 1997-11-26 Sony Corporation Identification signal registering method and apparatus
EP0808972A3 (en) * 1996-05-20 2000-12-06 Sony Corporation Identification signal registering method and apparatus
WO1997045614A1 (en) * 1996-05-24 1997-12-04 Bunn Sieng Ma Access control device for programmable electronic lock door
FR2749036A1 (en) * 1996-05-24 1997-11-28 Ma Bunn Sieng Access control device for a programmable electronic door lock
WO1998034201A1 (en) * 1997-02-04 1998-08-06 Robert Bosch Gmbh Method for operating a remote-control device and a remote-control device
US6522240B1 (en) 1997-02-04 2003-02-18 Robert Bosch Gmbh Telecontrol device and method for the operation of telecontrol device
EP0870889A3 (en) * 1997-04-07 2001-04-25 Eaton Corporation Keyless motor vehicle entry and ignition system
WO1999061732A1 (en) * 1998-05-27 1999-12-02 Lancap Ab An electronic lock

Also Published As

Publication number Publication date Type
GB8717117D0 (en) 1987-08-26 application
GB2192665B (en) 1990-11-21 grant
GB8617662D0 (en) 1986-08-28 application

Similar Documents

Publication Publication Date Title
US4988987A (en) Keysafe system with timer/calendar features
US4652860A (en) Security installation
US6243000B1 (en) Wireless rolling code security system
US4931789A (en) Apparatus and method for a universal electronic locking system
US6127922A (en) Vehicle security system with remote systems control
US5365225A (en) Transmitter-receiver system with (re-)initialization
US4634846A (en) Multimode programmable stand-alone access control system
US6154544A (en) Rolling code security system
US4929880A (en) Electronic lock system with battery conservation features
US4947163A (en) Electronic security system with configurable key
US4665397A (en) Apparatus and method for a universal electronic locking system
US4794268A (en) Automotive keyless entry system incorporating portable radio self-identifying code signal transmitter
US4896246A (en) Electronic lock with energy conservation features
US6690796B1 (en) Rolling code security system
US6081199A (en) Locking device for systems access to which is time-restricted
US5838255A (en) Enhanced remote control device
US20070252675A1 (en) Electronically enabling device remotely
US5506575A (en) Key-lock system and method using interchange of system-originated codes
US4887292A (en) Electronic lock system with improved data dissemination
US4914732A (en) Electronic key with interactive graphic user interface
US4766746A (en) Electronic real estate lockbox system
US6810123B2 (en) Rolling code security system
US5463374A (en) Method and apparatus for tire pressure monitoring and for shared keyless entry control
US6225889B1 (en) Method of producing rolling code and keyless entry apparatus using the same
US6448894B1 (en) Passive actuation of home security system

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020720