Class / Patent application number | Description | Number of patent applications / Date published |
340551000 | Disturbance of magnetic field | 16 |
20080231443 | METHODS, SYSTEMS AND DEVICES FOR DETECTING THREATENING OBJECTS AND FOR CLASSIFYING MAGNETIC DATA - A method for detecting threatening objects in a security screening system. The method includes a step of classifying unique features of magnetic data as representing a threatening object. Another step includes acquiring magnetic data. Another step includes determining if the acquired magnetic data comprises a unique feature. | 09-25-2008 |
20090102653 | Method for Maintaining a Shipping Container Manifest - A system, method, and apparatus for monitoring and detecting movement of components of a shipping container latch. A latch monitor may embody an electromagnetic sensing unit and a nearby magnet or light emitter for measuring and characterizing the profile of a nearby electromagnetic field. The field profile is monitored to detect a change in the profile, log the change, and report any abnormal disturbance to the electromagnetic field, indicating a breach of the integrity of a latching mechanism on a shipping container. An alert of a breach event may be sent via a communication network to an authority for response. The invention can distinguish authorized, incidental, and tampering events, and also store and upload an electronic manifest for a shipping container. | 04-23-2009 |
20090201153 | Fiber optic security system for sensing the intrusion of secured locations - A sensor for a security system is disclosed to detect intrusions at one or more predetermined locations wherein each location includes a moveable member which must be moved in order to intrude the location. The system includes a fiber network routed in close proximity to one or more locations. The sensor comprises a sensor housing for being disposed at a location to detect a predetermined movement of the moveable member from a secure position to an unsecured position, and means for mounting the sensor housing in a stationary position at the location without a physical connection to the moveable member. The sensor housing includes a fiber inlet and a fiber outlet, and a fiber chamber for receiving a predetermined sensor fiber of the fiber network being routed through the sensor housing. The sensor has a sensor actuator for engaging the sensor fiber to generate an intrusion signal upon detecting predetermined movement of the moveable member, and causing the intrusion signal to be transmitted along the sensor fiber to a processor whereby the intrusion and location of the intrusion may be determined by the processor. Preferably, the sensor includes a magnetic actuator having a magnetic attraction to the moveable members whose interruption causes activation of the sensor and generation of the intrusion signal. | 08-13-2009 |
20090315713 | MESSAGE LEAVING SYSTEM AND METHOD FOR DIGITAL PHOTO FRAME - A message leaving system for digital photo frame (DPF) is provided. The message leaving system includes a message recording unit configured to record a message in the DPF, a detecting sensor initiated by information sent from the message recording unit to detect human presence after a predetermined detecting time period from the message being stopped recording, a message reminding unit generating a notification signal to inform users to play the message when the detecting sensor detects human presence, and a message handling unit configured to store or delete the message after the message being played. | 12-24-2009 |
20100026489 | SECURITY DEVICE AND SECURITY SYSTEM USING THE SAME - The present invention relates to a security device used in connection with an access barrier of a protected area. The access barrier is movable between an open position and a closed position for selectively permitting ingress and egress to the protected area. The device has an access barrier position detector to detect the position of the access barrier and generate a status signal indicative of the access barrier being open or closed. The device also has a lock position detector to detect the position of a lock for selectively locking and unlocking the access barrier and generate a status signal indicative of the access barrier being locked or unlocked. A signal transmitter is provided to transmit the status signals. | 02-04-2010 |
20100052906 | Anti-Theft Security Marker with Soft Magnetic Bias Component - An acoustic-magneto (AM) anti-theft marker is formed with the bias piece made from a soft magnetic material, instead of a “semi-hard” magnetic material that has been used in conventional anti-theft AM security markers. The method of manufacturing such soft magnetic bias pieces includes cold deforming a soft magnetic material with at least an eighty percent reduction rate, while keeping its DC coercivity below 12.5 Oe. The strip or wire of soft magnetic material is then cut to size as required for the bias piece. The anti-theft AM security marker has the soft magnetic bias piece placed inside or outside of the resonating cavity of the housing for the security tag with the resonator pieces inside the resonating cavity with a cover film placed over the housing. The soft magnetic bias piece or pieces effectively operate close to resonator piece or pieces with or without a non-magnetic separating film. | 03-04-2010 |
20100141443 | SMART CONTAINER UWB SENSOR SYSTEM FOR SITUATIONAL AWARENESS OF INTRUSION ALARMS - An in-container monitoring sensor system is based on an UWB radar intrusion detector positioned in a container and having a range gate set to the farthest wall of the container from the detector. Multipath reflections within the container make every point on or in the container appear to be at the range gate, allowing intrusion detection anywhere in the container. The system also includes other sensors to provide false alarm discrimination, and may include other sensors to monitor other parameters, e.g. radiation. The sensor system also includes a control subsystem for controlling system operation. Communications and information extraction capability may also be included. A method of detecting intrusion into a container uses UWB radar, and may also include false alarm discrimination. A secure container has an UWB based monitoring system. | 06-10-2010 |
20100171615 | System for Detection of Underwater Objects - An underwater detection system comprising: at least one transmitter ( | 07-08-2010 |
20100219951 | MAGNETIC FIELD BASED ALARM SYSTEM - An embodiment of the present technology provides an apparatus, comprising at least one compass sensor and at least one main electronic board capable of determining a mismatch from said compass sensor and further sending a signal to a at least one vehicle control board to activate at least one security action. The present technology also provides for a security method, comprising determining at least one variation in a magnetic field with at least one magnetic sensor, amplifying said variation by at least one electronic amplifier, processing said variation by a least one electronic board and receiving said processed variation by a vehicle control board to trigger at least one security action in an alarm system. The technology also comprises an alarm circuit, further comprising an electronic compass sensor to sample an incoming magnetic field and output a signal an electronic board to receive said signal and comprise a plurality of NOR gates, transistors, resistors, capacitors, operational amplifiers, wherein said electronic board is capable of processing said signal and a vehicle control board to receive said processed signal to trigger at least one security action in an alarm system. | 09-02-2010 |
20100321185 | DEVICE, METHOD, COMPUTER PROGRAMME AND SYSTEM FOR DETECTING IF AN OBJECT OR A PERSON CROSSES A LIMIT MARKED BY A MAGNETIC FIELD - A device for recognizing when an object or a person crosses a threshold that is marked by a magnetic field comprises a first magnetic field sensor that is designed to detect a first magnetic field component of the magnetic alternating field and to deliver an associated magnetic field sensor signal. The device comprises a second magnetic field sensor that is designed to detect a second magnetic field component of the alternating magnetic field. The device also comprises an evaluator that is designed to deliver information in response to a change in a phase relationship between the magnetic field sensor signal delivered by the first magnetic field sensor and a reference signal based on the detection of the second magnetic field component by the second magnetic field sensor, said information indicating that the object or person has crossed the marked threshold. | 12-23-2010 |
20130088353 | Systems and Methods for Detecting Tampering Associated with a Utility Meter - Systems and methods for detecting tampering associated with a utility meter. According to one embodiment of the invention, there is disclosed a method. The method can include detecting either a rate of change or change in magnitude of a magnetic field associated with a utility meter; based at least in part on the rate of change or the magnitude of the magnetic field, determining that a magnetic event has occurred; upon or after occurrence of the magnetic event, receiving additional utility meter information; based at least in part on the magnetic event and additional utility meter information, determining that meter tampering has occurred; and generating an event indication for transmission to a utility service or for subsequent review by the utility service. | 04-11-2013 |
20130265163 | Magnetic Field Activated Intrusion Detection - In certain embodiments, an intrusion detection device includes a magnetic field activated sensor and a cascading circuit. The magnetic field activated sensor is operable to detect movement of a corresponding component by sensing a magnetic flux variation of a magnetic device coupled to the component and generate a signal indicating that the corresponding component has moved. The cascading circuit is coupled to the magnetic field activated sensor and is operable to receive the signal generated by the magnetic field activated sensor and to generate a tamper detection signal if the signal indicating that the corresponding component has moved is received or if another tamper detection signal generated by another intrusion detection device is received. | 10-10-2013 |
20140191869 | MECHANIZED AREA CONTROLLER - Mechanized area controller systems and methods for coordinating the movement of workers and vehicles to improve safety are disclosed. Some embodiments of the methods include generating a magnetic field defining a first zone and detecting a response signal from a first device. Other method embodiments also include detecting a response signal from a second device and generating a danger signal when the first and second devices are both within the first zone. Some system embodiments include a magnetic field generator for defining a first zone and a first device configured to detect the first zone magnetic field and generate a first device response signal. Other system embodiments also include a second device configured to detect the first zone magnetic field and generate a second device response signal and a first controller configured to generate a danger signal when the first and second devices are both within the first zone. | 07-10-2014 |
20160027272 | MAGNETIC FIELD SENSOR - A magnetic field sensor comprises a power source, an indicator and a microprocessor. The power source supplies current to the indicator. The indicator turns on when a magnetic field is sensed and the indicator turns off when a magnetic field is not sensed. The microprocessor renders the indicator inoperable a predetermined period of time after the magnetic field sensor is powered up. | 01-28-2016 |
20160098907 | SYSTEMS AND METHODS FOR INTRA-ZONE DETECTION | 04-07-2016 |
20160189506 | Alarm Arming With Open Entry Point - A magnet and magnetometer may be integrated into a smart home environment and allow it to be placed into an away mode of operation despite an entry point being semi-open. The disclosed implementations can detect a magnetic field strength and determine, based on the detected field strength, an approximate distance that a moveable partition is open. In some configurations, the presence of a second magnetic source can be detected. A notice may be generated based on one or more signals received from the magnetometer. The notice may be sent to a controller, a remote system, a remote device, and/or a client device as disclosed herein. | 06-30-2016 |