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| Number | Title | Issue Date |
| 7388487 | Method of eliminating impact/shock related false alarms in an acoustical glassbreak detector Apparatus for detecting the breaking of a contact-sensitive surface includes an acoustic, shock, and vibration transducer, a detector circuit responsive to the transducer for detecting an acoustic wave resulting from a contact force applied to the surface and genera... | 06/17/2008 |
| 7365277 | Buffer assembly for a pressure sensitive switch A buffer assembly includes a housing adapted to sealingly connected to the pressure switch and defining therein a chamber and an airway defined in a bottom face of the housing to communicate with an interior of the housing so as to communicate with an inlet of the p... | 04/29/2008 |
| 7271721 | Protected distribution system An information transmission system comprising a conductor operable to carry a desired information signal. A first tube substantially surrounds the conductor and a second tube substantially surrounds the first tube to define a substantially fluid-tight chamber thereb... | 09/18/2007 |
| 7242162 | Apparatus and method for retracting awning An apparatus and method for retracting an awning. A sensor detects an awning acceleration caused by wind impacting the awning, and generates a signal having an amplitude corresponding thereto. When the signal exceeds a certain threshold, the awning is retracted. The... | 07/10/2007 |
| 7225976 | Aircraft anti-theft and safety system A fixed program processor having a timer relay and a comparator relay interprets, stores and compares inputted biometric data with pre-loaded biometric data and responds including activation of a vehicle's electronic systems. An electronic system interrupter allows ... | 06/05/2007 |
| 7176812 | Wireless blade monitoring system and process The present invention can be generally described as a blade monitoring and wireless communications system. This monitoring and communications system is formed by the integration of commonly available or easily developed hardware and/or software components, which may... | 02/13/2007 |
| 7170416 | Device for detecting a body falling into a swimming pool Device to deliver an alarm signal upon detection of a gravitational wave generated by a body falling into a swimming pool, using a differential detector that includes a comparison device for comparing a sensitivity threshold value to the value of the electrical sign... | 01/30/2007 |
| 7161476 | Electronic tire management system An electronic tire maintenance system is provided for measuring a parameter of a device at a first location. The system includes a sensor for measuring the device parameter and generating a data signal representing the measured parameter. The system also includes a ... | 01/09/2007 |
| 7130383 | Lifestyle multimedia security system A method is disclosed for remote monitoring of a premises, comprising the steps of operatively coupling a geographically remote client to a security system server which is capable of authenticating a user of the remote client, operatively coupling the remote client ... | 10/31/2006 |
| 7123725 | High intensity infrasonic tunable resonant acoustic test cell An apparatus and method are provided for high intensity acoustic test cells that employ the Helmholtz resonator principle, incorporating at least one moderately-sized volume or test cell that is tunable to a given infrasonic to low-sonic frequency and generates soun... | 10/17/2006 |
| 7119609 | Lifestyle multimedia security system A method for remote monitoring of a premises. A geographically remote client is operatively coupled to a security system server capable of authenticating a user of the remote client. The remote client is then operably coupled to a security gateway capable of managin... | 10/10/2006 |
| 7120233 | Lifestyle multimedia security system A method for remote monitoring of a premises. A geographically remote client is operatively coupled to a security system server capable of authenticating a user of the remote client. The remote client is then operably coupled to a security gateway capable of managin... | 10/10/2006 |
| 7120232 | Lifestyle multimedia security system A method for remote monitoring of a premises. A geographically remote client is operatively coupled to a security system server capable of authenticating a user of the remote client. The remote client is then operably coupled to a security gateway capable of managin... | 10/10/2006 |
| 7103152 | Lifestyle multimedia security system A method for remote monitoring of a premises. A geographically remote client is operatively coupled to a security system server capable of authenticating a user of the remote client. The remote client is then operably coupled to a security gateway capable of managin... | 09/05/2006 |
| 7057974 | Device for sensing seismic and acoustic vibrations A device for sensing seismic and/or acoustic vibrations, has a body of a particulate material composed of a plurality of individual particles, and a system for determining changes in electrical conductivity of the particulate material caused by seismic and acoustic ... | 06/06/2006 |
| 7057497 | Security device A security device includes an impact sensing unit for sensing an impact, a sound pressure sensing unit for sensing a sound pressure, an abnormal degree determination unit for determining an abnormal degree based on a level of an impact sensing signal sensed by the i... | 06/06/2006 |
| 7015806 | Distributed monitoring for a video security system A system and method for distributed monitoring and remote verification of conditions surrounding an alarm condition in a security system. A security gateway detects alarm conditions at a premises and records video relating to the alarm condition. The security gatewa... | 03/21/2006 |
| 7012540 | Mobile working machine provided with stability monitoring The invention relates to a mobile working machine, particularly a mobile concrete pump, comprising a device for monitoring the stability thereof when in operation. The working machine comprises a chassis (10), which contains a supporting structure with two fr... | 03/14/2006 |
| 6930599 | Security system A system and method for enabling a central station to accurately verify in real-time whether an alarm signal generated by a security base station is a false alarm, and for enabling remote users to securely access features of the security base station such as remote ... | 08/16/2005 |
| 6720875 | Self-adjusting alarm device with low energy consumption An alarm device including an acoustic pressure sensor (10) delivering an analog signal to first amplifying means (12) and to second amplifying means (14), a first comparator (34) where the positive input is connected to the output of the ... | 04/13/2004 |
| 6703928 | Closed space monitor system A closed space monitor system monitors the closed space by detecting a change in the air flow and the volume change of the closed space. The closed space monitor system includes a transmitter for generating and transmitting a compression wave of gas, a re... | 03/09/2004 |
| 6608558 | Damper device for building, and monitor and control system for damper device An oil pressure damper device for an architectural structure and a monitor and control system of the damper device without requiring an exclusive network for connecting between the damper devices and the monitor and control system, and is able to monitor ... | 08/19/2003 |
| 6570500 | Infra-sound surveillance system The invention is a method for monitoring an environment by evaluating an infrasonic signal obtained from said environment. The method includes averaging said infrasonic signal (Vinfra) to provide an averaged infrasonic signal (Vav), ... | 05/27/2003 |
| 6522252 | Pressure sensor and door opening/closing monitoring system A pressure sensor 10 has a sensor chip 14 attached in a package 13 formed with a stem 11 and a cap 12 bonded at open surface sides thereof. On both sides of a diaphragm 14a of the sensor chip, pressures are applied via a measurement pressure introducing t... | 02/18/2003 |
| 6493687 | Apparatus and method for detecting glass break A glass break detector is disclosed that uses a neural network to determine if an audio signal is breaking glass. A characteristic extraction unit is used to extract a set of signal characteristics from a time domain signal based on the audio signal. The ... | 12/10/2002 |
| 6437694 | Air controlled sensor The invention is directed to a system for detecting the presence or absence of a blocker to an air code flow. The system comprises an active air code generator, a sensor element through which an air code generated by the active air code generator travels,... | 08/20/2002 |
| 6433678 | Vehicle burglar alarm lock A vehicle burglar alarm lock has a body capable of being locked to an annular handle of a steering wheel. An alarming circuit in the body is capable of being actuated for operation. The alarming circuit has an independent battery set not being connected t... | 08/13/2002 |
| 6335683 | Signal discriminating method and device for detecting intrusion into premises The invention concerns a method for discriminating between signals generated by means sensitive to variations in the pressure of a gaseous fluid. This method is characterized in that, in order to discriminate between electrical signals, it operates as fol... | 01/01/2002 |
| 5999096 | Metering apparatus with tamper detector Apparatus, for example postage metering apparatus is described as being provided with tamper detection means. The tamper detection means may comprise an electrically conductive or resistive first layer extending between a wall of a secure housing and comp... | 12/07/1999 |
| 5831528 | Detection of glass breakage A glass shattering detector and method for detecting breaking glass take advantage of the characteristics of high frequency components of a glass shattering signal which can be statistically recognized. In contrast to most non-glass breaking transient eve... | 11/03/1998 |
| 5796336 | Glass breakage detecting device To improve accuracy in detection of glass breakage, a microphone converts a glass breaking sound into an electrical signal, and high-pass filters and extract high frequency components of 2 kHz or higher and 150 Hz or higher, respectively, from the signal.... | 08/18/1998 |
| 5754106 | Method for detecting and reporting failures in EPL systems A method for handling failures in an electronic price label (EPL) system which automatically diagnoses failures, and which may additionally automatically contact a support organization. The method includes the steps of transmitting a status request to a c... | 05/19/1998 |
| 5691697 | Security system A security system includes a pressure sensing circuit for generating an electrical signal in response to changes in pressure and a signal processing circuit, connected to receive the electrical signal, for determining whether the electrical signal represe... | 11/25/1997 |
| 5677666 | Method of monitoring a vehicle interior The interior of an automotive vehicle is monitored for incursion by launching primary sound wave pulses into the interior of the vehicle and picking up the primary sound wave pulse together with superimposed reflection and sound signals generated by incur... | 10/14/1997 |
| 5621386 | Elevated floor alarm system An alarm system as a support of an elevated floor, whose plurality of pressure sensing devices are installed as a support outside the floor of the protection area, wherein a pressure sensing device comprises: a cover in direct contact with the lower side ... | 04/15/1997 |
| 5548275 | Alarm system for enclosing and protecting an area A protective alarm system for encompassing an area to be protected, such as a swimming pool, includes an enclosure arrangement having at least one and preferably a plurality of flexible hoses that are filled with fluid and substantially enclose or surroun... | 08/20/1996 |
| 5515029 | Glass breakage detector A method of detecting glass breakage utilizing the sound produced by an event comprising the steps of sensing the sound and producing an electrical signal characteristic of the sound, producing a plurality of frequency band-limited signals from the sound ... | 05/07/1996 |
| 5406258 | Pressurized security barrier and alarm system A security barrier for placement across a passageway is made up of interconnected pressurized tubing made up in a grid pattern with openings too small to allow passage. The tubing is connected to a pressure switch, located away from the barrier site, whic... | 04/11/1995 |
| 5376919 | Vehicle intrusion detector A vehicle detector is disclosed wherein either a glass breakage signal or a door opening signal causes an alarm. The glass breakage signal is caused by the detection of high audio frequency simultaneously accompanied by the detection of a positive pressur... | 12/27/1994 |
| 5323141 | Glass break sensor having reduced false alarm probability for use with intrusion alarms A sensor has a reduced probability of generating a false alarm in the presence of a strong high frequency acoustic wave, such a false alarm being caused by the saturation of the microphone which is part of a single microphone glass break sensor. The senso... | 06/21/1994 |
