JPS60195280A - Electronic lock controller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Background of the invention]

The advantages of electronic locking devices over corresponding mechanical arrangements are evident in the greater protection that electronic locking devices provide against unauthorized entry, lock duplication, and lock breaking. Conventional electronic lock systems typically include an electronic lock control circuit that operates an electromechanical latch in response to an encoded card or other encoded key. Cards in conventional devices are typically encoded optically, magnetically, electrostatically, or capacitively. U.S. Pat. No. 3,821,704 describes an electronic lock system that allows the electronic control circuitry on each door to be easily changed to correspond to a new code. This is done by issuing a card with a new code to each new guest, which is valid for opening a particular door, such that the card issued to the previous guest is no longer effective in activating the door. This is an important condition for hotels. The feature of the t-co device described in this U.S. patent is that when a new guest inserts his or her card into the slot in the door of the room assigned to him or her, the device in the door reads the new guest's card upon insertion. It is changed to correspond to the new code encoded and no longer responds to the code encoded on the card issued to the previous customer. As described in US Pat. No. 3,821,704, a requirement for the use of electronic locking devices in hotels is that the lock must be responsive to various coded cards. For example, have your mate hold your mate's card. However, for security reasons, it is generally desirable for mates to have cards that allow them to open only the room assigned to that particular mate and not other rooms. Directors can be issued a higher level Master Card. This card allows the director to open a much larger number of rooms than the mate card, corresponding to the number of rooms assigned to all mates. A higher level MasterCard may be issued to a member of the hotel for management purposes or to open all doors in any part of the hotel in case of fire or other emergency. Therefore, the need for a large number of levels on the card, as well as the need to repeatedly change the locks on individual doors or groups of doors to prevent theft, makes it difficult for hotels to use electronic locking systems. It turns out that this is a big problem when using it. In the electronic lock system described in the above-cited US patent, each lock is controlled by a decoding device that includes a resettable recording device. In the simplest form, the recording device is preloaded with multiple bit combinations. Each time a card is used with the device described in this patent, at least two numbers are sent to the device: a key number and an authorization number. If the key number is found to match a combination pre-stored in a particular decoding device, the corresponding door lock is activated. If there is no such match, the card's authorization number is compared with the authorization number entered by the previous user. If it matches, the decoder can be reset to the new key number and the lock can then be opened with the new card. Therefore, with the device described in this U.S. patent, all that is required to change the lock combination of any particular decoder on any particular door is to add the new card number to the newly issued card as well as the last It is to encode the authorization number of the card. At this time, when a new card is inserted into a particular door, the circuit responds by changing the stored code to a new code,
Activates an electromechanical latching device to open the door. In the device described in this US patent, when a guest registers for a room, he is given a card carrying encoded information in at least two areas. One field contains the new key number and the second field contains the permit number assigned to the last guest to use the room. When a new customer inserts this card for the first time, the lock is automatically rekeyed to the new combination encoded on the new card. Thereafter, until the lock combination is changed again, the only card number that will open this particular door is the power number assigned to the current customer. The previous customer's card cannot open the lock. This is because the decoding circuit now has a new load number. Electronic door locks of the type described in this patent are unchallenged because the lock combinations are stored in a storage device that can only be recalled by specific logic circuits. Furthermore, it is possible to change the key of each lock without any help from anyone other than the user. Finally, there is no connection between the individual electronics at each door and a central control unit, which saves considerable equipment costs. The electronic locking device of this invention is generally described in U.S. Pat.
This is the same format as described in No. 1.704. However, the electronic locking device of this invention has additional features. These include providing each door with a battery-powered, microcomputer-controlled electronic circuit. The device of the present invention can be easily and conveniently installed on existing hotel doors of the mortise or knob lock type. Each device of the present invention attached to a separate door is responsive to a programmable magnetically encoded key card. This card acts to activate the electronic lock circuit if the code is correct, and to update the code stored in the device if the card is issued to a new customer. do. In this invention, each device confirms the entry of all and records the entry, and
It is also possible to limit the number of days that a card issued to any particular customer is valid. The key card used in the electronic lock device of the present invention is magnetically encoded and is reprogrammable and can be used multiple times. The data on each card is proximity-sensed by a contactless electromagnetic read head when the key card is inserted into the slot of any one electronic lock door device, thus making contact with the magnetic material of the card to the reader. This eliminates the problem of ambiguous data transfer due to dust, dirt, grease, etc. These problems are common in conventional key card reading devices, whether using magnetic strips or optical or capacitive encoding of individual cards; The individual bits are loosely packed such that information can be written to or read from the card by moving the card by hand without the need for any drive motors or the like. For convenience, each device can be configured so that the key card may be inserted into the slot with either side facing up. The card can also be programmed with the customer's identity and sent to the customer when they make a reservation. At this time, when guests enter the hotel, they only need to insert their card into the card reader to complete check-in and receive a room assignment. At checkout, customers simply insert their card into the reader and their bill is automatically recorded and they receive a printout. A hand-held device is used to read the identification code and time data stored in the door's electronic control system, and to reprogram the door system if necessary, as well as to program the door system during first use. carry it to any door,
A portable computer is provided that can be plugged into the door's electronic control system. More specifically, the present invention provides an electronic lock control device mounted on a door that includes first binary counting means for storing binary data representing a first predetermined multi-bit binary number and said first predetermined multiplex. bit binary number microcomputer means having second binary counter means for storing binary data representing a second predetermined multi-bit binary number having a predetermined numerical relationship to the multi-bit binary number; A key part in which multi-bit binary data corresponding to the code is stored is connected to the microcomputer means, which reads the binary data stored in the key part and inputs data corresponding to the data of B. A key reading means is introduced into the microcomputer, and the entry code of the key member and the binary data stored in the first counter means are used to generate input/output. generates the input/output in response to a sign between the entry code of the second binary counter means and the binary data stored in the second binary counter means, and is further connected to the microcomputer and is responsive to the input/output. means for unlocking the door by means of a first and second binary counter in response to a sign between an entry code stored in the member and binary data stored in a second binary counter; To provide an electronic lock control device in which the count of a second binary counter is changed by a predetermined amount. The present invention also includes a key component used in electronic locks, etc., which is made of a magnetic card made of a selected magnetizable material and magnetized to represent a plurality of binary bits. provide.

[Detailed explanation of examples]

The door device 10 of FIG. 1 has a slot 12 into which a magnetically encoded card 16 is inserted. When the card has the appropriate code, the door is unlocked and can be opened by turning the handle 14. The card is made of magnetizable material, for example. The card is in the first series of slots A1
It has a second series of slots B and a third series of slots C. The portions of the card between the individual slots are suitably magnetized according to the binary code. Series A and B represent data bits, while series C represents clock bits. Clock bit slot C can also be used in an optical reader for clocking when desired. For example, when a card is inserted into slot 102 in FIG. 5, the center row of slots can be optically read for clock operation, and when the card is removed, the clock bits can be read magnetically. I can do it. The card can be encoded by calculator 100 (FIG. 5) by inserting the card into slot 102 and activating the computer's keyboard. Computer 100 may be a small, low-mounted portable computer such as an Epson HX-20. This computer is typically configured to encode cassette magnetic tape. With the simple modification of replacing the cassette with a card-receiving slot 102, the card can be encoded by the computer. Programmable cards 16 are advantageous over optically encoded cards in that they can be easily encoded without the need for a punch machine, are reusable, and cannot be counterfeited. As shown in FIG. 3, the door system 10 of FIG. and a privacy switch 30. Card reader 22 has three magnetic reading heads 22A, 22B, 22C. The card 16 is inserted into the slot 1z and the card passes under the three read heads and moves inward until the switch 24 is actuated. Switches 2 and 4 activate the circuit so that the card is read upon removal from the slot. Card reader 2
2, three heads 22A, 122B, 22G are card 16
to sense the encoding between the various series of slots A, B, and C provided in the. The magnetic sensing by card reader 22 is proximity-based in that the read heads 22A, 22B, 22C do not actually contact the magnetic card;
There is no problem of data transfer ambiguity due to dust, dirt, grease, etc. A battery 26 energizes circuit board 200 circuitry to
If 6 has the correct sign, the solenoid 28 will be energized when the card is removed from the slot, thus allowing the door to open. When there is someone in the room, the privacy switch 30 is activated, so the circuit 20 will not respond to any card inserted into the slot except for the emergency card, and the battery 26 will not respond. 2 with an expected lifespan of 20 years
It may be a 9 volt or 34 volt lithium battery. A circuit diagram of the door arrangement is shown in FIG. As shown in the figure, three reading heads 22A constitute the card reader 22.
, 22B, and 22C are comparators AI. A2. They are respectively connected to A3. These comparators are LM3
It may be included in a 39-inch integrated circuit. Comparator AI, A2. A3 is the pins PBO and PBI of a microcomputer MC10 such as MC146805G 2 type.
, Pct. Comparison @Al. A3 provides data bits to microcomputer MC10 and comparator A2 provides a clock bit. The negative terminal of the battery 26 is connected to the negative conductor B-, and the positive terminal is connected to the other conductor B+. Conductor B+ is connected to the emitter of transistor Q1, and its collector is connected to conductor B+
It is connected to the. A pair of resistors R1, R2, both 51 kilohms, are connected in series between conductors B+ and B-. These resistors are shunted by a 0.1 mic four Farad capacitor C1. The connection point of resistors R1, R2 is connected to readout pads 22A, 22B, 22G and a group of 57 kilohm resistors R3, R4, R5. The read heads are respectively connected to comparators AI, A2 . It is connected to the inverting input of A3, and resistors R3, R4, R5 are connected to the non-inverting input of the comparator. one group of resistors R6, R7, of 1 megohm;
R8 connects each output terminal of the comparator to a corresponding non-inverting input terminal. A conductor B''l- is connected to the comparator to drive it, and is also connected to pins PBO, FBI, PCI of the microcomputer MC10 through respective resistors R9, RIQ.all of 100 kilochems. Microcomputer pin PB2.PB3.PB4゜PB5.PB
6. PB7 is grounded. A privacy switch 30 is connected to ground on the lock case and pin PA of the microcomputer MC10.
Connected to 6. On the other hand, a conductive wire B- is connected to the ground of the magnetic head. The armature of the card switch 24 is connected to pin PB3 of the microcomputer, the normally open terminal is connected to conductor B-, the normally closed terminal is connected to a 5 microfarad capacitor C2, and a 51 kilohm resistor R14. It is connected to the conductor B1 through the conductor B1. Resistor R14 is also connected to pin Vcc of the microcomputer, and capacitor C2 is connected to conductor iB-. Card 24 is actuated into one position when the card is fully inserted into slot 12 and into a second position when the card is removed from the slot. At a predetermined time after the switch 24 is actuated to the first position by fully inserting the card into the slot and then returned to the second position by removing the card, the microcomputer MCl0 switches to the PA2. Generates input/output. When the card is fully inserted, the circuit is energized and
The card is read when it is removed. Microcomputer pin PCO is grounded capacitor C
3 and resistor R15, and the resistor is connected to the voltage source 26
connected to the positive terminal of Pin PA5 is connected to the clock terminal via a 100 kilohm resistor R16. Pin PA4 is connected to the data terminal via a 100 kilohm resistor R17. As shown, conductor B- is connected to a common ground terminal. On the other hand, conductor 1itB+ is lN400
It is connected to the power terminal via a type 7 diode CRI and fuse f1. A computer 100 is shown in FIG. 5 and can typically be kept at a hotel or other establishment's desk.
It is used to encode the guest card when each guest checks into the hotel. This is done by inserting a blank card into slot 102 and then generating the appropriate code on the card by actuating a computer key. The computer 100 can be carried to a separate door and then connected to the above-mentioned terminals to read the identification code and time data stored in the device, as well as for the first programming of the microcomputer MCl0, or Provide power, clock signals, and data to the circuit in Figure 4, and provide a ground connection to reprogram the microcomputer in the event of a synchronization failure, or to open the door if the battery dies. You can. The pin labeled ``O20OUT'' is connected to a 470 kilohm resistor R20 and a 22 megohm resistor R22. A resistor R20 is connected to a grounded capacitor C6 of 22 picofarads, and a resistor R22 is connected to a pin marked 08CIN'' of the microcomputer MCl0 and a grounded capacitor C7 of 70 picofarads. is connected between the common connection point of resistor R22, capacitor C7 and resistor R20, capacitor C6. Pin FAI of microcomputer MC10 is 10,
Pino PA2 is connected to a 1 kilohm resistor R26. These resistors are connected to conductor B0 through resistors R28 and R30 of 5.1 kilohms, respectively. The common connection point of the resistors R24 and R28 is connected to the pace of the PNP transistor Q2, and the common connection point of the i resistance R30° R26 is connected to the base of the PNP drive transistor Q3. Transistor Q2. The emitter of Q3 is connected to conductor B0. The collector of transistor Q2 is connected to LED CR3 via a 100 ohm resistor R36, which is also connected to conductor B-. In contrast, the collector of transistor Q3 is connected to lock solenoid 310 and to diode CR8. This solenoid can be configured with 300 turns of wire No. 39, for example. This diode CR8 is connected to conductor B-. The opposite side of the lock solenoid SiO is connected to the lock casing. The connection point of fuse f1 and diode CRI is connected to a resistor R50 of 10 kilohms, and this resistor is connected to diode CI (6). The diode B is connected to conductor B-. is connected to pin PA4 of the microcomputer and to conductor B- through diode CR8. Conductor B1 is also connected to conductor B- through diode CR9 and another diode CRIO, and these diodes The connection point of is connected to the pin PA5 of the microcomputer.The diodes CR7, CR8, CR9, CR10 are connected to the pin PA5 of the microcomputer.
A diode CR9, which may be of type 48, is shunted by a 4.7 megohm resistor R60. The connection point of resistors R1 and R2 is connected to the non-inverting input of comparator A4 via a 1 megohm resistor R62. These comparators are also comparators AI, A2. It may be included in an integrated circuit with A3. The input/output terminal of comparator A4 is connected to PA7 of microcomputer MC10, and
It is connected to the connection point of resistor R14 and capacitor C2 via a 0 kilohm resistor R64. Resistance R64 is 4.7
A megohm resistor 1 (66) is connected to the inverting input of comparator A4, as well as a 2.2 megohm resistor 68 connected to conductor B-.
It is also connected to the connection point of resistor R50 and diode CR6 via a 0 kilohm resistor R80. Pin PAO of the microcomputer is connected to the base of transistor Q1 through a 10 kilohm resistor R82 and to conductor B0 through a 5.1 kilohm resistor R84. Transistor Q1 is normally nonconductive, so there is no appreciable current consumption of battery 26 when the circuit of FIG. 4 is not in use. When the card 16 of FIG. 2 is inserted into the slot 12 of FIG. 1, the card switch 24 closes, which causes the microcomputer MCl0 to conduct the transistor Q1, thus energizing the device. During removal of the card from the slot and until all bits of the card have been read, transistor Q1 remains conductive, after which transistor Q1 becomes non-conductive again. As long as the circuit is energized, transistor Q2 is energized intermittently, causing LED CR3 to blink. This blinking continues for 5 seconds. If the card has the correct code, pin PA2 of the microcomputer conducts drive transistor Q3, thus energizing solenoid 810 and unlocking the door. At this time, the door must be opened within the 5 seconds that LED CR3 is flashing. At the end of the 5 seconds, transistor Q3 becomes non-conductive again, deenergizing the solenoid. When privacy switch 30 is closed, conductor B+ is grounded, and even if a card with the correct code is inserted into slot 12 of FIG. 1, the circuit will have no effect on unlocking the door. As explained with reference to FIG. 2, rows A and B of magnetic cards
represent the data bits and the middle column C represents the clock bits. Therefore, of all the bits representing the data code, the number that constitutes the entry code is used, and the remaining bits are used for the confirmation code. Microcomputer MC10 responds to the card's entry code and compares it with the code stored in its recording device. If the comparison is successful, transistor Q3 conducts and energizes solenoid 310 which unlocks the door. The microcomputer also responds to the confirmation code bit to determine the time of each entry, whether the key used was a service key, and
Confirmation data including information regarding whether the key is a mate's key or a guest's key is stored in the recording device. Specifically, in the practical example of the invention, the microcomputer 10 stores five levels of key codes. 1st
level is responsive to the insertion of the customer's card into slot 12 of FIG. The second level responds to the insertion of the mate's card into the slot. The third level is responsive to insertion of a mask card into the slot of FIG. The fourth level is responsive to inserting the ground mask card into the slot. The fifth level is responsive to the insertion of an emergency card into the slot. microcomputer MC
10 also stores a sixth level key code for the ingress/egress code for the computer 100 of FIG. 5 when the computer is brought to the door and plugged into the circuit of FIG. As for the customer level, each new customer is issued a card, and that card only operates on one door. Regarding mate levels, each mate is issued a card that activates a predetermined number of doors when the privacy switch is not activated. A master level card will activate all doors, for example, to allow service if the privacy switch is not activated. On the other hand, emergency level cards are
Activate the door to allow access to the room in any situation, even if the privacy switch is activated. Using a magnetic armature card means that the card can be reprogrammed and used many times, which makes the card cheaper than a one-time card. As mentioned earlier, the data on the card is proximity-sensed, eliminating the need for the read head to touch the card, which, as mentioned earlier, can obscure data transfer due to dirt, grime, grease, etc. This problem is eliminated, as well as other environmentally related problems common to electronic readers, whether magnetic strip, optical, or capacitive. When a card for a particular room is issued, the code of this card [compared to the previous card]
Steps by 1 or 2 in binary. After this, when a new customer inserts his or her card into the slot, the door device responds to this card and unlocks the door.At the same time, the register of the microcomputer 10 is set and the device is opened. In an example of this device, the card ζ changes the sign of the first card and the next card 3, which is 1'' or ``2'' in binary, but the most significant bit or for the position of other lower bits,
The absence of any indication on the card still prevents unauthorized empty rooms. As previously mentioned, the microcomputer 10 reads the card and records the time and identity of each person who entered the room, for example for the last 14 entries. Specifically, the microcomputer C informs whether the person entering the room is a customer, a mate, a service worker, or an emergency employee. In the case of hotel staff, their identities will be verified. This is because the a-certification data is recorded on that card. Read the card and read the last one
Being able to record four entries narrows the list of possible thefts, which acts as a significant deterrent to preventing theft by hotel staff. As previously mentioned, verification data and time data are read from each device by the computer of FIG. Because the sign changes of successive cards follow a predetermined binary count, there is no need for communication between the card encoding mechanism at the hotel counter and the various door devices. For example, when issuing a new card to a customer, at the same time a blank card is inserted into the slot 102 of the computer 100 (FIG. 5) at the counter, and the current binary code corresponding to a particular room is changed to 1 in binary. or the value incremented by 2 only needs to be encoded on the card, e.g. in the device described in U.S. Pat. There is no need to synchronize the order. When a new card is inserted into the slot 12 of FIG. 1, the door device reads the new code of this card and converts the current code to 1 or 2t' in binary! The old card will no longer be accepted. Provision can also be made for the case where a card is issued for a particular room which is not in use and therefore the door device does not currently have an opportunity to update its code. This can be done by having the door device accept the current code plus 1 in binary units and the current code plus 2 in binary units. Therefore, a new card will still be accepted even if the code is not currently updated by a previously issued card. As previously mentioned, the computer 100 of FIG. 5 is preferably small and portable so that it can be carried to a separate door and plugged into a separate door system when the situation arises. A microcomputer device fMc1° in each door device has a small recording device which stores data regarding the identity and time of the last 14 entries. This information can be read out by inserting a computer into the door device. As previously mentioned, the combivoter can be used to program or reprogram the door system. When a lithium battery is about to run out, the voltage does not gradually drop. Instead, the voltage suddenly drops to zero. For that reason, the device of FIG. 3 is provided with a battery indicator circuit. This circuit has a capacitor C2 charged from a battery 26 via a resistor R14. As a result, the voltage appearing across the capacitor supplies power to the microcomputer MCl0. The internal resistance of the battery 27 increases when it is about to die. Therefore, during the time when solenoid 310 is loaded, its voltage drops during the time it is turned off. Using comparison @A4, look at the voltage of the battery 26 when the solenoid 310 becomes a load. If this voltage falls below a threshold value, the code register in the recording device of the microcomputer Me10 is set to 0, and the door device does not accept any code. At this time, when the computer 100 is inserted into the device, the door can be opened. The microcomputer MCl0 has an internal register,
Whenever a card is inserted into the slot 12 of FIG. 1, the card's entry code is inserted into the register. The microcomputer also includes a first internal counter set to the correct entry code for the door. When a customer inserts his or her card into slot 12 of FIG. 1 and the entry code on the card matches the code on the counter, pin PA2 goes low and solenoid S
10 is energized and the door can be opened. To conserve power, the solenoid is first energized with a 5 millisecond DC pulse and locked. Then IKHz with 50% duty cycle
A square wave appears on pin PA2 for 5 seconds to keep the solenoid locked. Of course, compared to the duration of the initial DC pulse, the solenoid draws less current from battery 26 during the square wave. The microcomputer MCl0 also includes a second internal counter, which is set, for example, to a binary count greater or less than the first period counter, or to a predetermined number of counts greater or less than the first counter. be done. When the next customer inserts a count into slot 12 and the entry code on the card matches the count remaining between the first and second counters, solenoid S10 is energized and the door can be opened. After this, the two counters are incremented so that the count on the first counter matches the entry code of the new customer's card, and the count on the second counter matches the new entry code on the first counter. Make the count of the planned number larger or smaller than the count. When the solenoid 310 is energized when the count of the expected number between the two counters is greater than 1 and the entry code of the new card matches the count remaining between the first and second counters. For some reason, even if the previous guest did not use the room, the new guest can still enter and exit the room. Each guest's card is encoded with a second code representing the allowed room occupancy time. When the customer inserts the card into slot 12, another counter is set according to this period code. The computer's internal clock then causes the counter just described to count down to zero. When the counter reaches zero, the previously mentioned counter is incremented or decremented by a predetermined amount and the current card is no longer valid. Computer MCl0 also contains an internal entry register for mates, which is set to a particular code. Slot 1 whose mate's card has a sign that matches this particular sign
2, solenoid S10 is energized and the door can be opened. Each Mate's card also has an A-authorization code to identify its owner. This code is stored in the computer's recording device along with the entry and exit times. However, the microcomputer MCl0 has a privacy switch 30.
If it is closed, it will not respond to your mate's card. There is a similar internal register and verification storage within the computer for the Master Card as well as the Emergency Card. I]iJ, the emergency card activates the solenoid 310 even when the privacy switch 30 is closed. The identity and entry/exit times stored in the recording device of the computer MCl0 can be read by inserting the computer 100 of FIG. 5 into the circuit of FIG. 4. The microcomputer MCl0 includes a clock generator controlled by a crystal x1 and a counting circuit indicating real time, so that various entry times can be stored in a recording device. The door device records frequent entries based on elapsed time. computer 100
When plugged into the circuit shown, the computer responds by reading the door device's progress device and reads out the actual time of each entry. Accordingly, the present invention provides an electronic lock system in which each door contains its own microcomputer control, which is not wired to a central computer and is operated by its own battery. This device is small and lightweight, so if you need it,
As a whole, it can be easily removed from the door and replaced. The device of the invention is designed so that an individual customer's card can be programmed to expire after a selected period of time. Furthermore, the operation of the device is not affected even if the issued customer card is not used. In addition, each door device records the identity of all hotel personnel who enter the corresponding room as well as the time of each entry and exit. A computer at the counter electronically encodes each customer's card as it is issued, eliminating the need for mechanical card punches. The card itself is a simple four-grammable metal card that is magnetically encoded and read in close proximity without requiring any moving parts in the reader. This card can be reprogrammed and reused any number of times. Desk computers are small, lightweight, and easy to carry. It can be carried to any particular door, inserted into a door device as described above, read the information stored in the door device, and start the operation of the door device. Therefore, while particular embodiments of the invention have been illustrated and described, it will be understood that modifications may be practiced. It is to be understood that the claims are intended to cover all possible modifications within the scope of the invention.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the door locking device of the present invention, and FIG.
The figure shows a metal card which, when inserted into the slot of the door device, acts to unlock the door, and which card can be selected at any time by means of a suitable coder located, for example, at a hotel counter. Magnetically encoded with a code. 3 is a schematic diagram showing various parts including the circuit board provided in the door device of FIG. 1, FIG. 4 is a circuit diagram of the circuit board of FIG. 3, and FIG. Illustration of a portable computer used to encode cards, which can be used to read data stored in individual door devices as well as to program door devices when used for the first time.

[Explanation of main symbols]

16...Card MOIO...Microphone computer 22...Card reader 28...Engraving of solenoid drawing (no change in content) FIG, 2 FIG, 5 Procedural amendment (I4 April 1985//) Manabu Shiga, Commissioner of the Patent Office 1, Display of the case Electronic lock control device 3, Person making the amendment Relationship with the case Patent applicant Name: James Goubreux, Raymond 4, Agent Address: 107 Aka @ 2-2, Minato-ku, Tokyo No. 21 No. 5, Date of amendment order Showa date (voluntary) 6, Subject of amendment (1) Engraving of the entire specification (however, there is no change in the content) (2) Engraving of the entire drawing (however, the content remains unchanged) (3) Power of attorney and translation 7, as per the amendment white reference sheet 8, attached documents

Claims (1)

[Claims] 1) In an electronic lock control device attached to a door, a first binary number storing binary data representing a first multi-bit binary number;
and second binary counter means for storing binary data representing a second predetermined multi-bit binary number having a predetermined numerical relationship to said first predetermined multi-bit number. a key member storing multi-bit binary data corresponding to the entry code;
key reading means connected to the microcomputer means for reading binary data stored in the key member and introducing input corresponding to the data into the microcomputer means; The entry code of the key member and the binary data stored in the first counting type means generate an input/output, and the microcomputer inputs the entry code of the key member and the binary data stored in the second binary counter means. generating the input/output in response to a sign between the stored binary data; further comprising means connected to the microcomputer for unlocking the door in response to the input/output;
The microcomputer controls the counts of the first and second binary counters in response to the sign between the entry code stored in the key member and the binary data stored in the second binary counter. Electronic lock control device that changes only the scheduled amount. 2. In the electronic lock control device according to claim 1), the microcomputer means is configured to store binary data stored in the key member and 20) binary data stored in the binary counting means. An electronic lock control device that changes the counts of said first and second binary counter means by one count in response to a sign between the binary data. 3) In the electronic lock control device according to claim 1), the key member is magnetized, and the key reading means reads an electric signal corresponding to binary data stored in the key member. and also generates a corresponding clock signal when said key member is read by a key reading means. 4) As stated in claim 1), 1. =In an electronic lock control device, a privacy switch is connected to said microcomputer means, such that when said privacy switch is set to a particular position, said microcomputer means is prevented from generating said entry/exit signal. An electronic lock control device that can be operated from the inside of the door. 5) In the t-komi lock control device described in claim 1), there is a receiving means corresponding to the key member, and the key member is attached to the key receiving means and the key member is inserted into the key receiving means. a switch which is actuated into a first position when the key is removed from the key receiving means and which is actuated into a second position when the key is removed from the key receiving means, the switch being connected to the switch and the microcomputer; after a predetermined period of time after the switch is actuated to the first position and returned to the second position by insertion into and removal from the switch.
An electronic lock control device comprising a circuit for generating input/output by the microcomputer. 6) The electronic lock control device according to claim 1) includes a battery for energizing the microcomputer, a receiving means for the key member, and a key member attached to the key receiving means. an electronic lock control having a switch activated when the key member is inserted into the key receiving means; and a circuit connected to the switch and the battery to test the condition of the battery each time a key member is inserted into the key receiving means. Device. 7) In the electronic lock control device according to claim 1), the data pin 1- constitutes a confirmation bit, and the microcomputer means stores information regarding the identity of the person using the card. Electronic lock control device with memory device. 8) In the electronic lock control device according to claim 1), the data bits constitute a duration code, and the microcomputer means responds to the duration code to determine whether the duration code is An electronic lock control device that changes the counts of said first and second binary counters by said predetermined amount after a predetermined amount of time has expired. 9) In the electronic lock control device according to claim 1), the difference between the first and second multi-bit binary numbers is 1.
and a microcomputer generates the input/output in response to a code between an entry code stored in a key member and a multi-bit binary number between the first and second multi-bit binary numbers. and changing the counts of the first and second counters by a predetermined amount. 10) In the electronic lock control device set forth in claim 9), 1, the data bits are arranged symmetrically on both sides of the clock bit, and the key member has a groove with either side facing upward. An electronic lock control device that remains effective even when inserted into a hole.