Burglar, theft, or intruder alarms

GPHYSICS G08Signaling G08BSIGNALLING OR CALLING SYSTEMS ORDER TELEGRAPHS ALARM SYSTEMS

G08B13/00Burglar, theft, or intruder alarms

G08B13/02Mechanical actuation G08B13/04by breaking of glass G08B13/06by tampering with fastening G08B13/08by opening G08B13/10by pressure on floors, floor coverings, stair treads, counters, or tills G08B13/12by the breaking or disturbance of stretched cords or wires G08B13/122for a perimeter fence G08B13/124with the breaking or disturbance being optically detected G08B13/126for a housing G08B13/128the housing being an electronic circuit unit G08B13/14by lifting or attempted removal of hand-portable articles G08B13/1409for removal detection of electrical appliances by detecting their physical disconnection from an electrical system G08B13/1418Removal detected by failure in electrical connection between the appliance and a control centre, home control panel or a power supply G08B13/1427with transmitter-receiver for distance detection G08B13/1436with motion detection G08B13/1445with detection of interference with a cable tethering an article G08B13/1454Circuit arrangements thereof G08B13/1463Physical arrangements G08B13/1472with force or weight detection G08B13/1481with optical detection G08B13/149with electric, magnetic, capacitive switch actuation G08B13/16Actuation by interference with mechanical vibrations in air or other fluid G08B13/1609using active vibration detection systems G08B13/1618using ultrasonic detection means G08B13/1627using Doppler shift detection circuits G08B13/1636using pulse-type detection circuits G08B13/1645using ultrasonic detection means and other detection means G08B13/1654using passive vibration detection systems G08B13/1663using seismic sensing means G08B13/1672using sonic detecting means G08B13/1681using infrasonic detecting means G08B13/169using cable transducer means G08B13/18Actuation by interference with heat, light or radiation of shorter wavelength Actuation by intruding sources of heat, light or radiation of shorter wavelength G08B13/181using active radiation detection systems G08B13/183by interruption of a radiation beam or barrier G08B13/184using radiation reflectors G08B13/186using light guides G08B13/187by interference of a radiation field G08B13/189using passive radiation detection systems G08B13/1895using light change detection systems G08B13/19using infra-red radiation detection systems G08B13/191using pyroelectric sensor means G08B13/193using focusing means G08B13/194using image scanning and comparing systems G08B13/196using television cameras G08B13/19602Image analysis to detect motion of the intruder G08B13/19604involving reference image or background adaptation with time to compensate for changing conditions G08B13/19606Discriminating between target movement or movement in an area of interest and other non-signicative movements G08B13/19608Tracking movement of a target G08B13/1961Movement detection not involving frame subtraction G08B13/19613Recognition of a predetermined image pattern or behaviour pattern indicating theft or intrusion G08B13/19615wherein said pattern is defined by the user G08B13/19617Surveillance camera constructional details G08B13/19619Details of casing G08B13/19621Portable camera G08B13/19623Arrangements allowing camera linear motion G08B13/19626optical details G08B13/19628of wide angled cameras and camera groups G08B13/1963Arrangements allowing camera rotation to change view G08B13/19632Camera support structures G08B13/19634Electrical details of the system G08B13/19636pertaining to the camera G08B13/19639Details of the system layout G08B13/19641Multiple cameras having overlapping views on a single scene G08B13/19643wherein the cameras play different roles G08B13/19645Multiple cameras, each having view on one of a plurality of scenes G08B13/19647Systems specially adapted for intrusion detection in or around a vehicle G08B13/1965the vehicle being an aircraft G08B13/19652Systems using zones in a single scene defined for different treatment G08B13/19654Details concerning communication with a camera G08B13/19656Network used to communicate with a camera G08B13/19658Telephone systems used to communicate with a camera G08B13/1966Wireless systems, other than telephone systems, used to communicate with a camera G08B13/19663Surveillance related processing done local to the camera G08B13/19665Details related to the storage of video surveillance data G08B13/19667Details realated to data compression, encryption or encoding G08B13/19669Event triggers storage or change of storage policy G08B13/19671Addition of non-video data G08B13/19673Addition of time stamp G08B13/19676Temporary storage G08B13/19678User interface G08B13/1968Interfaces for setting up or customising the system G08B13/19682Graphic User Interface [GUI] presenting system data to the user G08B13/19684Portable terminal G08B13/19686Interfaces masking personal details for privacy G08B13/19689Remote control of cameras G08B13/19691Signalling events for better perception by user G08B13/19693using multiple video sources viewed on a single or compound screen G08B13/19695Arrangements wherein non-video detectors start video recording or forwarding but do not generate an alarm themselves G08B13/19697Arrangements wherein non-video detectors generate an alarm themselves G08B13/20Actuation by change of fluid pressure G08B13/22Electrical actuation G08B13/24by interference with electromagnetic field distribution G08B13/2402Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area G08B13/2405characterised by the tag technology used G08B13/2408using ferromagnetic tags G08B13/2411Tag deactivation G08B13/2414using inductive tags G08B13/2417having a radio frequency identification chip G08B13/242Tag deactivation G08B13/2422using acoustic or microwave tags G08B13/2425Tag deactivation G08B13/2428Tag details G08B13/2431Tag circuit details G08B13/2434Tag housing and attachment details G08B13/2437Tag layered structure, processes for making layered tags G08B13/244Tag manufacturing G08B13/2442Tag materials and material properties thereof G08B13/2445Tag integrated into item to be protected G08B13/2448Tag with at least dual detection means G08B13/2451Specific applications combined with EAS G08B13/2454Checking of authorisation of a person accessing tagged items in an EAS system G08B13/2457Lending systems using EAS tags wherein the tags are reusable G08B13/246Check out systems combined with EAS G08B13/2462Asset location systems combined with EAS G08B13/2465Aspects related to the EAS system G08B13/2468Antenna in system and the related signal processing G08B13/2471Antenna signal processing by receiver or emitter G08B13/2474Antenna or antenna activator geometry, arrangement or layout G08B13/2477Antenna or antenna activator circuit G08B13/248EAS system combined with another detection technology G08B13/2482EAS methods G08B13/2485Simultaneous detection of multiple EAS tags G08B13/2488Timing issues G08B13/2491Intrusion detection systems G08B13/2494by interference with electro-magnetic field distribution combined with other electrical sensor means G08B13/2497using transmission lines G08B13/26by proximity of an intruder causing variation in capacitance or inductance of a circuit