Abstract: A self-contained electromagnetic impact sensor includes a frame, a fixed permanent magnet, a fixed coil, and a metallic body elastically mounted for movement within the frame. An impact received by the sensor imparts motion to the metallic body, thereby altering the pattern of magnetic flux extending from the permanent magnet and through the coil. An electrical signal is produced within the coil, which is processed and compared to one or more threshold levels to drive one or more corresponding output triggers.

Abstract: Any attempt to remove the first element or the second element from the protected item will cause the ends of the sensor cable second element to pull out of the channels of the third element, or if the sensor cable is cut, a general failure to communicate signals between the various sensor cables will occur and this failure to communicate can be sensed by an alarm system thus causing an alarm condition.

Abstract: An article removal alarm system includes a base unit for generating an ultrasonic signal for transmission in the vicinity of the base unit. A remote unit accompanying an associated article includes a receiver for receiving the ultrasonic signal. A threshold detector provides a threshold signal upon failure of the receiver to receive the ultrasonic signal at predetermined strength. An alarm unit then generates an alarm signal in response to the threshold signal. In a particular implementation the system enables monitoring of the proximity of a stylus or other input utensil to a responsive user interface of an electronic device.

Abstract: A patient monitoring system and method include a neuro-sensory motor stimulator which is applied to a patient. A resetting device and a stimulating device are in contact with the patient, and upon activating the resetting device, the stimulating device is turned off. If the monitored patient fails to timely activate the resetting device, an alarm sounds to alert medical personnel that the patient is in need of attention. The method provides for setting a first timer which controls stimulations and setting a second timer which controls the time period between stimulations and sounding of an alarm.

Abstract: A system to monitor the temperature of an integrated circuit and to dissipate heat generated thereby includes a heat sink to overlie the integrated circuit. A temperature sensor is located on the heat sink to detect the temperature adjacent the integrated circuit. Temperature signal conditioning circuitry is responsive to the temperature sensor and generates a temperature alarm signal when the temperature at the integrated circuit reaches a threshold level. A fan overlies the heat sink and draws air across and then away from the heat sink to cool it. A pressure transducer is mounted on the fan and detects air flow through the fan. Pressure signal conditioning circuitry is responsive to the pressure transducer and generates a pressure alarm signal when the air flow through the fan falls below a threshold level. Alarms are triggered by the temperature and pressure alarm signals to warn a user.

Abstract: A motion detection and imaging method and device 10 for carrying out the method are provided. The device 10 comprises a housing 12 containing a CCD 18 for providing digital image data, a lens 16 for focusing an image on the CCD 18 and a solid state non-volatile memory 24 for storing the digital image data. In one embodiment, the device includes a motion detector 26 for triggering the storage of the digital data.

Abstract: A window is positioned within a window casing and means are provided for rotatably connecting the window to the casing. A security apparatus includes a pair of rod holding brackets mounted on the casing on opposite sides of the window on an axis spaced from and substantially parallel to the rotational axis, each of the brackets having notch-like means for receiving and holding the end of a rod. An elongated rod is supported by the brackets and a permanent magnet is provided at one end of the rod to co-act with a magnetically operable switch attached to one of the brackets, the switch being connected to an alarm. When the window is closed the rod is positioned and held by the brackets and the permanent magnet causes the switch to have a first condition. The rod prevents the window from being moved from the closed position to the open position. If the rod is removed from the brackets, then the movement of the magnet away from the switch causes a change in condition of the switch to actuate the alarm.

Abstract: A theft preventive apparatus is attached to a commodity or the like exhibited in a shop, for outputting an alarm when detached therefrom.Conventionally, a battery is used as a power source for driving an alarm output device, and power supply is turned on and off by moving the battery. Even in a non-use state, an operation could be started inadvertently by vibration or the like.

Abstract: A portable terminal unit is connected to a network, such as a LAN, to communicate with a host apparatus. The terminal unit has a decision unit for determining whether or not the terminal unit is connected to the transmission line and/or a decision unit for determining whether or not the terminal unit is connected to the external power source. the terminal unit also has a communication controller for starting to communicate with the host apparatus when the decision units determine that the terminal unit is connected to the transmission line and/or to the external power source. The terminal unit therefor does not perform useless communication control, such as when the terminal unit is not connected to a transmission line of the LAN or to an external power source.

Abstract: A lighted switch set gauge includes Hall effect devices using a circuit activating switch attached to a lower extension of indicating and switch set pointers. The switch set pointer is externally adjustable. An overriding slip gear with automatic spring-back is incorporated in the switch set arm prevent damage to the set pointer at the extreme ends of its range of movement. The indicating pointer can be calibrated without removing a hub attached to the shaft of the gauge meter movement.

Abstract: A deactivation and coding system for a contactless antitheft or identification label, uses a pyrotechnic material to burn away a track portion, whereby an electrical connection is severed. The labels in the system according to the invention consist of tuned circuits in the form of one or more coil/capacitor combinations. Deactivation can be effected by severing the connection between a coil and the associated capacitor. Coding can be effected by severing the connection with one of several parallel-connected coils or capacitors. Coding can also be effected by removing an initial short-circuit of one of several series-connected capacitors.The pyrotechnic material may consist of one or a combination of the mixtures Pb.sub.3 O.sub.4, Si, Ti and Fe.sub.2 O.sub.3 ; PbCrO.sub.4, and Zr; Pb.sub.3 O.sub.4, Si and KNO.sub.2 ; and Pb.sub.3 O.sub.4 and Si or a mixture having comparable properties.

Abstract: An electronic pin fastener is useable in a security system for garments, merchandise and the like mounted for sale or display on a display fixture, rack or bin, whereby removal of the pin fastener will cause an alarm. The pin fastener has an enclosed housing having top and bottom walls, an aperture centrally disposed in said top wall, a hole centrally disposed in said bottom wall, a pin having a head and a stem, the stem of the pin extending through said hole in said bottom wall and bias means adapted so that the head of said pin is biased towards a circuit closed or open position to cause an alarm. The stem of the pin is adapted to be retained in a depressed position by an EAS tag or locking mechanism after the pin is inserted through a garment.

Abstract: A marker device for merchandise items has blanks of high magnetic coercivity material spaced along a strip of high magnetic permeability material. The strip and blanks are the same width, produced from three ribbons of material, one ribbon of the high coercivity material, another of the high permeability material, and a third having a pressure sensitive adhesive surface in one process embodiment, and the third being a heat activated adhesive film in another process embodiment. The strip and blanks are thereby adhesively connected. Multiple strips of the marker devices are produced simultaneously by running adhesively connected ribbons through a gang of slitter knives.

Abstract: An electrically conductive housing completely envelops an electronic component so as to screen the electronic component from electromagnetic radiation whilst permitting movement of the electronic component relative to the housing when acted upon by an external force. According to a preferred embodiment, the electronic component is a deflection sensor or taut wire sensor for use in an electrical security fence, such that the sensor is completely shielded from the atmospheric effects and stray radiation.

Abstract: An electronic article surveillance (EAS) systems includes an asynchronous noise suppression adaptive filter which removes asynchronous interference from the signal of interest with minimum distortion of the transients emitted when a sensitized tag is interrogated. The system also includes a synchronous noise suppression filter which removes interrogation synchronous noise from the signal of interest. The resulting EAS system increases the likelihood that a sensitized tag will be detected when one is present and reduces the occurrence of false alarms.

Abstract: An assembly of a dry coating (A) that has a magnetic powder with a saturation flux density of at least 100 emu/g is dispersed in a binder. A magnetostrictive metal (B), when the coating (A) is magnetized, resonates mechanically at a predetermined frequency in the range of varying frequencies. The varying frequencies are generated from an applied alternating magnetic field. Changes in flux density and permeability are experienced. When the coating (A) is not magnetized, metal (B) does not resonate at the predetermined frequency, thus experiencing no changes in flux density or permeability. The dry coating (A) and the metal (B) have a superposed relationship in such a way that the latter is capable of mechanical resonance, the marker being so adapted that when said coating (A) is magnetized, the predetermined frequency at which the flux density or permeability will change is generated as a signal in response to the applied alternating magnetic field.

Abstract: A personal electromagnetic radiation monitor includes an electromagnetic radiation sensor assembly having a surface area sensor in the form of a conductive can-shaped or boss-like element. The surface area sensor detects the radial electric field component directly from the radiating antenna or a secondary radial field component created by the displacement current induced in the wearer of the personal monitor who is illuminated by the electromagnetic radiation. The radial field component is detected by a diode detector circuit and is provided to a comparator circuit which will trigger an alarm if the induced current exceeds a predetermined level.

Abstract: An electrical receptacle unit includes at least one receptacle body (3) internally provided with a pair of slotted terminals (4) for insertion of a pair of blades (L) of a load-side electrical plug (P), a thermistor (7) encased in a protective tube (9) outwardly projectable from between the slotted terminals (4) of the receptacle body (3), a coil spring (13) for projecting the thermistor (7) out from the receptacle body (3), a relay (14) for enabling and disabling supply of electric power to the slotted terminals (4), a control circuit (19) which operates the relay (14) to cut off supply of electric power to the slotted terminals (4) when the temperature of the thermistor (7) reaches or exceeds a preset temperature, and a buzzer (23) operated by an output signal produced by the control circuit (19) when the temperature of the thermistor (7) reaches or exceeds the preset temperature.

Abstract: A method for removing a splice at a location on a tubular food casing product applies a tape to the food casing proximate the position of the splice, which tape has metallic properties. At least one of the metallic properties is detected when the tape reaches a particular location during movement of the casing. The splice is removed in response to the detection of the tape. Apparatus for removing a splice from a tubular food casing product employs a detector for detecting the tape when the tape reaches a particular location during movement of the casing; and employs a casing cutting apparatus for removing the splice which is activated in response to detection of the tape.

Abstract: An EAS central station has a number of input/output ports each for interfacing with a different personality local station. Hardware equipment and software programming of the central station have parts associated with the different personality local stations and a central processing unit selects the part of the hardware equipment and software programming associated with a local station.