Abstract: An electronically-operated gun safe or other lockable container is communicatively connected to an alarm system or one or more alarm system elements. When the alarm or the alarm system elements is/are triggered, a signal is received by the gun safe, which then unlocks the door to the gun safe to allow access to the contents of the gun safe, or takes other action to facilitate easier access to the contents of the gun safe.

Abstract: An application for a safe or strong box attaches to a larger, heavy object and provides improved security to its contents from unwanted removal. The safe or strong box has a revolving door that, when a proper code/combination/biometric is provided, rotatably opens to expose the contents. In one embodiment, the safe/strong box interfaces to, for example, a bedding system using a barbed plate that readily inserts between a box spring and a mattress, but due to the barbs, is difficult to remove without lifting the mattress from the box spring making it at least difficult to remove by, for example, children in the home. In some embodiments, sound dampening devices are provided to provide a quiet retraction of the revolving door, so as to not alert an intruder when the occupant is retrieving a weapon such as a pistol.

Abstract: A wireless enabled data transferring system for transferring data from a storage device to a slave receiving system. The wireless enabled data transferring system includes a master wireless USB element connectable to a USB port of a storage device. A slave wireless USB element is connectable to a USB port of a slave receiving system. The master wireless USB element and the slave wireless USB element are operably connected to provide data transfer when i) power is applied, ii) the master wireless USB element and the slave wireless USB element are within a predetermined range, and iii) security authentication is established. The slave wireless USB element emulates the data in the storage device as local to the slave wireless USB element.

Abstract: A tumbler-type lock apparatus for use with a tumbler-type card key having a code pattern region including an array of holes and non-hole portions that expresses a key code of the tumbler-type card key. The tumbler-type lock apparatus includes a slider case and a slider movable relative to the slider case when the tumbler-type card key is inserted into the tumbler-type lock apparatus. Tumblers extending in the slider case and slider each correspond to one of the holes or non-hole portions. Springs bias the tumblers towards the slider. The tumbler-type lock apparatus verifies the tumbler-type card key when the tumblers are engaged with the slider case and slider during insertion of the tumbler-type card key. The slider includes accommodation portions. A distal end of the tumbler that has passed through the corresponding hole of the tumbler-type card key is accommodated in the corresponding accommodation portion.

Abstract: A lock is provided with a housing, a shackle movably coupled to the housing, and a locking arrangement movable between a locked state and an unlocked state. The lock includes a receiver arranged to receive a remote input signal including at least one authorization code. The lock includes a logic applying arrangement programmed to selectively store at least one access code responsive to a corresponding authorization code received by the receiver and to energize the locking arrangement to move from the locked state to the unlocked state when an authorization code received by the receiver corresponds with one of a set of stored access codes. The locking arrangement is configured to secure the shackle within the housing when the locking arrangement is in the locked state, and the locking arrangement is configured to allow the shackle to move relative to the housing when the locking arrangement is in the unlocked state.

Abstract: A method for accessing a locked object. A first SMS message addressed to a short code and requesting access to the locked object is received by an Approval Authority computer and/or short code from one of a locked object and a requestor's wireless communication device. The Approval Authority computer determines whether to grant the requested access, and sends, back to one of the locked object and the requestor's wireless communication device, one of an access code for the locked object and a SMS reply containing the access code. If the requested access is granted, the Approval Authority also initiates billing the requestor a predetermined fee for the access.

Abstract: Methods and devices provide for lock interaction with software in order to facilitate access to a vault in a cash handling device and display of a transportation utility interface. A user may access an electromechanical lock on a cash handling device. The lock may determine whether the user is authorized. If unlocked, access may be provided to a transportation utility interface and to a vault that may contain currency in order to facilitate removal and transportation of the currency. If desired, stackers in the cash handling device may automatically transfer the currency to a container in the vault after the lock is unlocked. The vault may be subsequently closed, access to the transportation utility interface may be disabled, and the lock may be re-locked.

Abstract: A wireless outdoor mailbox actuating system preferable includes a lockable outdoor mailbox having a housing, a plurality of operating components dynamically attached to the housing and a mechanism for synchronously toggling the operating components between first and second associated positions respectively. The front door of the mailbox has an elongated slot that is large enough to receive for example, a DVD and a collection of mail. A remote controller is communicatively linked to a receiver and to a main controller to remotely activate the front door actuating mechanism, tray displacing mechanism and flag raising mechanism, respectively. Selected ones of such mechanisms may be synchronously linked together to allow a user to retrieve mailbox contents without the need to reach into the mailbox. The system additionally provides an effective and secure means of preventing unauthorized access to private mail inside the mailbox.

Abstract: A method of inputting a user input access combination in order to gain authorized entry into a secure location comprises providing an input device having first and second input keys as well as a display, randomly generating a first character and a second character on the display, inputting the user input access combination into the input device, and comparing the user input access combination with an authorized access combination. The user input access combination includes a first user input character and a second user input character. The step of inputting the user input access combination comprises pressing the first input key to change the first randomly generated character to the first user input character, and pressing the second input key to change the second randomly generated character to the second user input character.

Abstract: A container has a lid and a locking mechanism. The locking mechanism includes a male wall with a switch. A female wall mounts to the inside wall of the container and, when closed, encompasses the male wall. The female wall has a magnet that activates the switch. A lever contained inside the male wall moves into and out of a slot formed in the female wall. The switch completes a circuit that generates a close signal to the lever when the lid is closed. A button extends through a hole in the lid such that the button can be depressed to indicate locking and cannot be depressed when unlocked. When unlocked, the button cannot be depressed because the lever blocks the button. To open the container when closed, the actuation mechanism moves the lever in response to an entered code that must match a stored code or calculated content-specific code.

Abstract: Apparatus and methodology for providing electronic access control are disclosed. In an exemplary configuration, a retrofittable electronic lock can be used to provide secure storage to an enclosure. A user interface and LCD visual display can be provided to permit convenient adjustment of system operational parameters. In certain embodiments, the electronic access control system includes master-slave control capabilities. In other embodiments, the electronic access control system includes inventory management capability. In still other embodiments, apparatus and methodologies provide the secure storage of the enclosure when the enclosure is being moved or otherwise transported from one location to another location. Various alternative arrangements may provide various alert features, as well as battery features which facilitate rapid replacement and/or reconfiguration.

Abstract: Systems and methods for delivering goods and services involving use of locks that are programmed to permit limited entry under specified circumstances. A lock may be electronically programmed from a remote location in connection with an e-commerce transaction.

Abstract: A method for controlling access to a storage unit owned by an owner, wherein a renter can obtain and maintain rights to said storage unit by paying a first rental fee and subsequent periodic rental fee payments according to a schedule. In this method, the storage unit is secured by a lock that is, at least in part, controlled by the renter. A remotely controllable lockout assembly, however, is capable of over locking the storage unit so that the renter can no longer gain entry when the lockout assembly is activated. The method includes remotely controlling the lockout assembly to deny the renter access to the unit when the when said renter has failed to pay said periodic rental fee on schedule and a grace period has passed since said renter's rights to said storage unit have elapsed.

Abstract: An access device is provided for a system that has a plurality of locks that are each configured to receive instructions and to energize a lock mechanism to unlock the lock and a computer that is disposed at a remote location from the locks and that is connected to a primary wireless communication path. The access device includes at least one key configured for communicating with the computer via the primary wireless communication path and to communicate with the locks over a secondary wireless path. The at least one key is also configured to send a predefined text message for receipt by the computer and wherein the predefined text message provides an indication to the computer as to at least one other key whereto the predefined text message is to be sent.

Abstract: What is disclosed is a secure mailbox having at least an upper compartment with a plurality of sides, a front mailbox door hinge-ably coupled to a front edge of a side of the upper compartment, a locking and unlocking mechanism being adapted to lock the front mailbox door to the upper compartment and an unlocking activation mechanism coupled to the locking and unlocking mechanism; an upper rear mailbox door hinge-ably coupled to a rear edge of a side of the upper compartment, a locking and unlocking mechanism being adapted to lock the rear mailbox door to the upper compartment and an unlocking activation mechanism coupled to the locking and unlocking mechanism and a lower compartment having a lower, rear mailbox door hinge-ably coupled to a rear edge of a side of the lower compartment, at least one trap door being located between the upper compartment and lower compartment.

Abstract: A security system for monitoring, controlling, and automating one or more work areas and office furniture components, or monitoring, controlling, and automating utility components in other environments such as retail, restaurant, and home applications. The system includes passive and active access authentication devices and active or passive unlocking and lockdown devices for utility components, such as storage components, office furniture components, offices, and work sites. The system may include, for example, a processor, an access authentication device, sensors for monitoring work areas, actuators for controlling and automating work areas, and status and alarm notifiers.

Abstract: Systems and methods are disclosed for securely delivering a parcel when the intended recipient is not present to take physical possession of the parcel. Parcel delivery companies assign a unique tracking number to each parcel. The tracking number is enabled as an access code which, when input by a delivery person, unlocks a secured area such that the parcel can be placed inside.

Abstract: An improved electronic lock box system is provided for more secure control over the accessibility of a secure compartment in the electronic lock box, which is typically used to store a dwelling key. The new system uses biometric identification sensors to determine if the correct, authorized user is attempting to access the secure compartment of the electronic lock box. In one embodiment, the biometric identification sensor uses thermal scanning to detect a person's fingerprint pattern. This is compared to previously stored (enrollment) biometric identification information/data, and if the “live” (observed) biometric identification information/data sufficiently correlates to the stored enrollment biometric identification information/data, access will be granted.

Abstract: One embodiment provides a wireless communications device comprising a processing unit; a location-determining subsystem communicatively coupled to the processing unit, the location-determining subsystem to determine a current location of the wireless communications device using a global positioning system (GPS); a first wireless communications subsystem coupled to the processing unit, the first wireless communications subsystem to communicate location information using a cellular communications system; and a second wireless communications subsystem coupled to the processing unit, the second wireless communications subsystem to modulate a radio frequency (RE) field provided by a remote interrogator to wirelessly provide a random number generated on the wireless communications device as an identifier of the wireless communications device; wherein the second wireless communications subsystem is switchable between transmitting in a passive mode and transmitting in an active mode.

Abstract: Disclosed is apparatus and methodology for providing a retrofittable lock assembly for an enclosure. A manually or electronically accessible lock assembly has been provided that may be attached to an enclosure to control access to items stored in the enclosure. In a particular form, the retrofittable lock may be applied to a refrigerator used to store controlled medications. The retrofittable lock contains electronic circuitry that maintains a record of user identification, date, and time of access of users seeking access to items stored in the enclosure.

Abstract: A method of using an electronic locking system to access one of a plurality of lockers includes programming the electronic locking system by recording at least one biometric characteristic of a user when the user is located at the plurality of lockers, and associating the recorded at least one biometric characteristic of the user with the one of a plurality of lockers so that the user is authorized to access the one of a plurality of lockers. The method includes re-recording the at least one biometric characteristic of the user and comparing the re-recorded at least one biometric characteristic of the user with the recorded at least one biometric characteristic of the user, and unlocking the one of a plurality of lockers if the re-recorded at least one biometric characteristic of the user matches the recorded at least one biometric characteristic of the user.

Abstract: Systems and methods for providing one-time access to electronic locking devices for non-keyholders. The one-time access rights are delivered from a server to the electronic locking device in real-time, or in near-real time, over short and long-range wireless communication links in a manner that is secure and traceable. A handheld device is coupled with the electronic locking device via the short-range communication link, and is coupled with the server via a long-range wireless communication link.

Abstract: An electronic lock utilizes two microprocessors remote from each other for enhanced security. The first microprocessor is disposed close to an input device such as a keypad, and the second microprocessor is disposed close to the lock mechanism and well protected from external access. The first microprocessor transmits a communication code to the second microprocessor when it receives via the input device an access code that matches a preset access code. The second microprocessor opens the lock if the transmitted communication code matches a preset communication code. The dual-microprocessor arrangement is advantageously used in a voice controlled access control system and in a motorcycle ignition control system. The present invention further provides an electronic access control system which has a master electronic key having a preset number of access, and an electronic alarm system for a bicycle that has a remote control mounted in the helmet of the rider.

Abstract: A remotely or locally actuable refrigerator door lock has a body portion that is attached to the cabinet and a door portion that is attached to an edge of the door. A latch in the body portion engages a strike plate in the door portion and can be lifted out of engagement to open the refrigerator. The door lock assembly may be connected to a touch-screen device or via a USB or ethernet connection to a remote host computer. The host computer keeps an audit trail of the times and personnel accessing each refrigerator, and a temperature audit trail. The system may be used in hospital for controlling access to pharmaceuticals or may be used in a weight loss program. Temperature and humidity sensors are positioned within the refrigerator cabinet. The door lock may have battery power for portable or mobile applications.

Abstract: In a key management box (30) for centrally managing keys used to unlock the locks of a plurality of storage cabinets and comprising a key lock means (41) for making impossible to take out the key, and electronic ID storage section (47) performing personal authentication, and a controller (44) for unlocking the key lock means (41) for a key permitted for a personally authenticated user, the key is an electronic key (1) with an IC tag, the IC tag stores the ID data of a user and data for specifying a storage cabinet permitted for the user to unlock out of a plurality of storage cabinets, and the key management box (30) has a means (42) for reading out the ID data of the IC tag (S13: Yes), and a means (S14) for unlocking a lock means (41) for a key having the ID data of the user when the electronic key ID storage section (47) identifies a specific user. Consequently, the storage cabinets of the plurality of storage cabinets can be opened/close using one same key.

Abstract: Security system having a container, which encloses a strongbox area for receiving valuables. A device for carrying the container, a protection system for protecting the valuables located in the strongbox area, and an access opening are provided. At least one protection module is provided in the strongbox area, the protection module being designed for the purpose of neutralizing the valuables located in the strongbox area. The device for carrying is implemented as a separate module, which comprises a handle area, a mechanical interface for the mechanical connection to the container, a security circuit for securing the security system, and a security interface for establishing a communication link between the security circuit and the protection module.

Abstract: Disclosed is a method, system and apparatus for use in remotely and internally tapping a conduit. The method is performed, at least partially, by an automatic mechanism or robot configured to effectively perform the tasks and various steps of the method. The method includes the steps of: (a) lining a conduit with a liner; and (b) inserting an automatic mechanism into an internal portion of the liner, wherein the automatic mechanism (i) locates a service tap connection point; and (ii) at least partially engages a fitting device within an internal surface of the service tap entry portion, thereby providing fluid communication between a service tap internal passageway and an internal portion of the liner. An automatic mechanism, a fitting device and an insert element are also disclosed.

Abstract: A lockable container (1) for receiving items includes elements for generating a random code when the container is locked, elements for transferring the code to a person locking the container, and a memory for storing the code. The container further includes elements (2) for unlocking the container to a first stage, in which the contents of the container can be viewed by a user but not removed from the container, and elements for transferring the code to the user when the container is unlocked at the first stage. The container can then be unlocked to a second stage (3), in which the user can remove the contents of the container and the code is removed from the memory.

Abstract: An electronic lock utilizes two microprocessors remote from each other for enhanced security. The first microprocessor is disposed close to an input device such as a keypad, and the second microprocessor is disposed close to the lock mechanism and well protected from external access. The first microprocessor transmits a communication code to the second microprocessor when it receives via the input device an access code that matches a preset access code. The second microprocessor opens the lock if the transmitted communication code matches a preset communication code. The dual-microprocessor arrangement is advantageously used in a voice controlled access control system and in a motorcycle ignition control system. The present invention further provides an electronic access control system which has a master electronic key having a preset number of access, and an electronic alarm system for a bicycle that has a remote control mounted in the helmet of the rider.

Abstract: An RFID cabinet for monitoring items having an RFID tag includes, a cabinet having at least one locking front door. An RFID detector is used for monitoring each item placed within the cabinet and is located within the interior of the cabinet. A computer is coupled to the RFID cabinet and controls opening and closing of the front door and is configured to receive an input that identifies the user. In this way, the computer is configured to periodically record data read from the RFID tags by the RFID detector.

Abstract: An electronic storage box, an electronic storage box opening and closing method, and computer program product, comprising: safety, portability, convenience, economical efficiency and presentation effects are provided. In case a cryptograph setting request signal is received from a PC 21, the electronic storage box 1 stores cryptograph information included in the cryptograph setting request signal. In case an opening and closing request signal is received from a PC 21, the electronic storage box 1 determines whether or not the cryptograph information included in the opening and closing request signal and the cryptograph information stored in a key storage portion 103 match with each other. In case it is determined that these pieces of the cryptograph information match with each other, the electronic storage box 1 allows a lid 12 to shift either to an opened state or a closed state according to the opening and closing state of the lid 12.

Abstract: A system and apparatus to provide remote interactive access to multiple databases and, specifically, related to a system and apparatus to provide remote interactive access to real estate information related databases using a portable, voice interactive computing device with GPS capabilities and “smart” computer features. The system combines access to search engines configured to retrieve real estate listings, publicly available statistics about a specific geographic area, and retrieval of stored forms specific to completing an offer for real estate. The device can have several components in various combinations including a touch sensitive screen, a keyboard, a processor, GPS circuitry, a microphone, an audio device, wireless circuitry, cellular circuitry, a data jack, a wireless remote, and a camera. Software utilizing those components maximizes efficiency for a real estate agent in the field.

Abstract: There is provided a deposit box facility for depositing objects into and/or picking up objects from the deposit box facility. An exemplary deposit box facility comprises an audio playback device and a processor that is adapted to process audio data played back by the audio playback device. The processor may also be adapted to identify an object present in the deposit box facility on the basis of the information acquired from the audio data. The exemplary deposit box facility also comprises a device that is adapted to ascertain compartments of the deposit box facility in which there are no objects and to make a comparison of dimensions of the ascertained free compartments of the deposit box facility with object dimensions that have been received as part of the information acquired from the audio data.

Abstract: In various embodiments, the present invention provides a keyless management system for automating selective access to a lockable device and a method for selectively granting access.

Abstract: A container that is capable of outputting information related to objects stored in the container. The container is able to output information for objects that are stored by the container and that have identification tags physically associated with them.

Abstract: An IC tag for monitoring opening/closing operation 86 is attached on the backside of the glass frame 111 at its upper right portion, and on a main body frame 110 opposing to the glass frame 111, an antenna for monitoring 68 is attached. An IC tag for monitoring opening/closing operation 186 is attached on the inside of the right frame of the wooden frame 112, and on the main body frame 111 opposing to the wooden frame 112, an antenna for monitoring 168 is attached. The distance between these antenna and IC tags is respectively set to about 3 mm in a state where the frames on which they are provided are closed. A R/W unit always polls the IC tags via the antennas. When the glass frame 111 or the main body frame 110 is opened and the distance between the antenna and the IC tag exceeds about 5 mm, the communication becomes unavailable and this state is immediately detected. An antenna for key 128 is buried above a keyhole 120.

Abstract: A key control system includes at least one premise, a lockbox capable of securing a key to the premise and at least one mobile telephone associated with a user and having a stored access device program capable of communicating an access request to the lockbox. The premise is subject to authorized access by others, such as the user, based on preferences of an approval party established with the system. If specified by these preferences, the mobile telephone automatically initiates a communication to a selected destination to request approval of the access request.

Abstract: A system and method of securely allocating mobile devices is disclosed. A plurality of mobile devices are stored in an inoperative state under the control of a host computer. A user enters an identification code, which is received by the host computer, and the host computer selectively places a mobile device in an operative state based on the identification code. If the selected mobile device is not returned within a first predetermined interval, then the selected mobile device is placed back in the inoperative state. If the selected mobile device is not returned within a second predetermined interval, then all data within the selected mobile device's memory is purged. Additionally, the plurality of mobile devices can be stored in a secure area. Access to the secure area is granted based on the identification code.

Abstract: The present invention relates to a system for product storage and methods of categorizing, storing, and delivering products to end users via the system, the system's components including a processor, a “smart shelving” device, boxes for insertion into and utilization by the “smart shelving” device, and ID readers. Through the present invention, products are able to be securely and more certainly delivered to the proper recipient of the products.

Abstract: A web accessed security box includes a web server that can communicate with a web browser to control access and account for asset events that occur when the box is used. A personal identifier must be satisfied to open a drawer of the box. A latching system uses both an access solenoid for normal opening and closing in response to the personal identifier, and an emergency release solenoid having a separate power supply to open the box when the access solenoid is disabled. Several features make the box secure against weather and tampering.

Abstract: A showing management system for automatically controlling access to an electronic lockbox utilizing showing appointment data maintained by the showing management system, whereby the showing appointment data is transmitted to the electronic lockbox and/or electronic key device. The electronic lockbox will open only when the actual access time is within the scheduled showing appointment time. The showing management system further programmatically matching a specific electronic lockbox with a specific Listing ID, whereby lockbox access data from an electronic lockbox are matched with showing appointment records maintained in the showing management system to complete the lockbox access records when the Listing ID for a particular showing appointment is missing from the lockbox access record.

Abstract: A device for selectively controlling access to a plurality of secure areas includes a driver circuit including a plurality of drivers, and a plurality of access modules each assigned to a corresponding secure area of the plurality of secure areas. Each access module is operatively coupled to at least one actuator operative to grant or deny access to the corresponding secure area. Unused drivers provided to a first access module of the plurality of access modules are cascaded to a second access module of the plurality of access modules.

Abstract: A method of managing electronic safes implemented by a server on behalf of at least one user possessing at least a first electronic safe, said method comprising a step of implementing access means designed to provide said user with access, via a second safe belonging to said user, to a set of data forming part of a content accessible via the first electronic safe, said implementation step being intended to be carried out in the event of authentication of said user as the user owning the first electronic safe.

Abstract: A control unit to control an electronic lock on a safe includes an electronic lock for the safe. The electronic lock receives signals from an external computer, and controls the safe in response to the signals.

Abstract: Systems and methods for delivering goods and services involving use of locks that are programmed to permit limited entry under specified circumstances. A lock may be electronically programmed from a remote location in connection with an e-commerce transaction.

Abstract: Ternary data as corresponds to a movable barrier operator is provided (21) and converted (22) into corresponding binary information. In a preferred approach this comprises converting each ternary trit into a corresponding binary pair. Pursuant to a preferred approach binary bits as correspond to, for example, fixed and/or non-fixed information (32 and 33) are provided (31) and then converted (34) into the aforementioned ternary data.

Abstract: Methods, systems, apparatuses, and computer-readable media are provided for acquisition of a lockbox position. For example, in one embodiment a method is provided which receives positional data for a lockbox. After receiving the lockbox, when the lockbox is associated with one listing, the method determines proximity of the positional data to that one listing. If however, there is more than one listing within a predetermined distance of the positional data, the method compares the positional data with each listing in the plurality of listings. Thereafter, the method transmits a query, which includes at least, a result of the comparison. Embodiments of the invention also include other methods, computer-readable media, apparatuses, and systems that contain features similar to the features in the above described method.

Abstract: A method of granting a service provider access to a vehicle of a customer to facilitate provision of services therefor is disclosed. The method includes the acts of scheduling a service appointment with the service provider for servicing at least one of the vehicle and articles placed within the interior or trunk of the vehicle, and, if the service appointment is scheduled for the articles, then locking the interior or trunk of the vehicle with the articles placed therein. The method further includes the acts of attaching a security storage box to the vehicle or in proximity to the vehicle, and locking a means for accessing the interior or trunk of the vehicle in the security storage box, granting access to the service provider to the means for accessing locked in the security storage box, and permitting access to the interior or trunk of the vehicle using the means for accessing to afford service to the vehicle or the articles.

Abstract: A method for tracking a plurality of containers each joined to an electronic tracking device having routing capabilities and a WPAN-enabled radio receiver/transmitter configured to attempt to connect to a pre-configured WPAN upon being activated comprises activating the radio receiver/transmitter of each tracking device joined to a container being loaded onto a cargo vessel; receiving an indication from each tracking device that fails to connect to the WPAN; intermittently performing a network scan to locate each WPAN-connected tracking device; intermittently configuring the WPAN to include each WPAN-connected tracking device in a hybrid tree-mesh network topology; intermittently configuring routing information stored on each WPAN-connected tracking device to maintain mutual communication with each WPAN-connected tracking device and enable mutual communication between each WPAN-connected tracking device; receiving transport-related data from each WPAN-connected tracking device; transmitting the transport-rela

Abstract: The present invention provides a battery-free electronic key used in motorcycles and improves security. A communication circuit (44) is actuated when an electronic key is inserted into a keyhole. An electromotive force generated in a coil L2 is rectified by a power circuit (74) and supplied to the components of an electronic key-side circuit (40) as a source of power, in accordance with the variations of an electromagnetic field having a frequency of f0 generated by the communication circuit (44). The electronic key-side circuit (40) reads identification information from a storage unit (72), and the information is converted to ternary value data in a binary value/ternary value conversion circuit (70). Transistors Tr1 and Tr2 are switched on and off in accordance with the bit values of 2-bit data that expresses ternary value data, which generates three-stage variations in the electromagnetic field between coils L1 and L2.