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| Number | Title | Issue Date |
| 7423933 | Method for visualization of echoes received by an active sonar using a line spectrum emission The invention relates to a method for the visualisation in a single image of the useful information obtained by the operation of an active sonar with line spectrum emission. The method permits an operator to simultaneously view the echoes which may need monitoring a... | 09/09/2008 |
| 7376210 | Apparatus and method for performing adaptive channel estimation in a mobile communication system Disclosed is an adaptive channel estimator for improving a performance of a general channel estimator in a mobile communication system, and a method for controlling the same. The adaptive channel estimator further detects a noise level of a channel and a channel spe... | 05/20/2008 |
| 7303142 | Novelty waterfall operatable based upon user interaction A novelty waterfall that includes at least one water flow surface, a pump, and a sensor that detects a change of presence of an item. The novelty waterfall further includes a controller that is structured and arranged to operate the pump at least when the sensor det... | 12/04/2007 |
| 7232111 | Control arrangement for an automatic residential faucet A hands-free faucet comprises a spout, a valve, a position sensitive device, and a logical control. The position sensitive device is positioned on the user's side of the spout, and has a trigger zone and an extended zone, each defined in part by a distance range fro... | 06/19/2007 |
| 7224750 | Apparatus and method for receiving RF signal free of 1/f noise in radio communication system An apparatus and method for receiving RF signals in a RF communication system are provided. The apparatus for receiving RF signals comprises a pre-processing unit for bandpass-filtering a signal received through an external antenna with a predetermined bandwidth and... | 05/29/2007 |
| 7209529 | Doppler compensated receiver A receiver includes a controller which receives A/D sampled input signals and shifts the sampled digital signal to compensate for Doppler effect in the input signal prior to demodulation. The controller compensates for a Doppler increased frequency by shifting the s... | 04/24/2007 |
| 7180442 | Target indentification method using cepstral coefficients A method of identifying an unknown target comprising creating a density function of cepstral coefficients for a known target; receiving a signal from the unknown target; transforming the signal from a time spectrum to a frequency spectrum using a Fourier transform; ... | 02/20/2007 |
| 7176840 | Variable spacing inductance coil apparatus and method A variable inductance electrical device is an electrical conductor arranged in a flexible helical coil with a multiplicity of windings connected to a traveler plate and a fixed plate coaxially arranged a distance from the traveler plate. The conductor is arranged in... | 02/13/2007 |
| 7154434 | Anti-personnel airborne radar application An anti-personnel airborne radar application for ultra slow target tracking is provided. The anti-personnel airborne radar application includes a rotorcraft and a signal processing system. The signal processing system includes a radar antenna supported by said rotor... | 12/26/2006 |
| 7145452 | Detection of bodies Detection of the presence of an animal body, for instance a human, in a detection zone is achieved by generating a low power LF field (17) between antennae (12, 18), and by measuring the disturbance of this field by the body. An analyser (16) is... | 12/05/2006 |
| 7138938 | System and method for preemptively sensing an object and selectively operating both a collision countermeasure system and a parking assistance system aboard an automotive vehicle A system and method for preemptively sensing an object in the potential drive path of an automotive vehicle and selectively operating both a collision countermeasure system and a parking assistance system aboard the automotive vehicle are disclosed herein. The syste... | 11/21/2006 |
| 7084745 | Sensor system for determination of environment for motor vehicles The invention relates to a sensor system for sensing objects in an area of the surroundings of a motor vehicle, in which, in order for the sensor system to sense the objects, waves are emitted in a predefinable main irradiation direction, are reflected partially at ... | 08/01/2006 |
| 7069021 | Method and a system for positioning of an electronic device, and an electronic device A method is provided for determining the position of an electronic device by receiving a code modulated signal transmitted by satellites, and position information of the satellites and time data, and by generating local time data. In the method, delta range measurem... | 06/27/2006 |
| 7030806 | Time domain radio transmission system A time domain communications system wherein a broadband of time-spaced signals, essentially monocycle-like signals, are derived from applying stepped-in-amplitude signals to a broadband antenna, in this case, a reverse bicone antenna. When received, the thus transmi... | 04/18/2006 |
| 7026931 | Microwave sensor A sensor has a trigger level that is set in advance in which a distance to a detected object and a signal level of waves reflected from the object are associated. The sensor only dispatches an object detection signal indicating that the detected object is an object ... | 04/11/2006 |
| 7003272 | Radio apparatus with adjustable reception quality A radio apparatus (95), particularly for mobile radio, which makes it possible to adjust the signal reception in a predeterminably optimized way is proposed. The radio apparatus (95) includes a receiver part (1) and an evaluation unit (5)... | 02/21/2006 |
| 6998541 | Automatic surgical sponge counter and blood loss determination system A surgical sponge detection system includes a plurality of surgical sponges (2) having radio frequency identification tags (1) securely attached thereto and a non-optical hand-held reader (40) for detecting the sponges by detecting the tags (... | 02/14/2006 |
| 6992579 | Burglar alarm system having reduced wiring Normal hard-wired domestic burglar alarms have cables with six conductors extending between the alarm controller and each remote input/output device (such as an entry keypad). The present alarm system has an alarm controller, a remote input/output device, a cable ex... | 01/31/2006 |
| 6970688 | Local oscillator signal divider and low-noise converter employing the same A rat race circuit has an annular transmission line formed on a microstrip dielectric substrate. A terminal for port 1 is formed at any given position of the annular transmission line. Respective terminals for port 2 and port 3 are formed at res... | 11/29/2005 |
| 6965753 | Apparatus for performing doppler correction in a wireless communications system Apparatus for Doppler correction in a wireless communications system, including a first frequency synthesizer for generating a carrier signal oscillating at a rate responsive to a first input, a counter coupled to the first input for generating a Doppler compensatio... | 11/15/2005 |
| 6959154 | Diversity receiver for mitigating the effects of fiber dispersion by separate detection of the two transmitted sidebands Link robustness, chromatic dispersion and polarization mode dispersion (PMD) immunity can be improved in fiber optical system by using a method for receiving an optical double sideband signal over an optical fiber system, comprising the steps of splitting the receiv... | 10/25/2005 |
| 6952166 | Burglar alarm system having reduced wiring Normal hard-wired domestic burglar alarms have cables with six conductors extending between the alarm control panel and each event sensor (such as a PIR). Two of the conductors might provide current to a motion detector, two of the conductors might provide a circuit... | 10/04/2005 |
| 6909397 | Stabilizing motion in a radar detection system using ultrasonic radar range information One preferred embodiment of the present invention provides a system and method for suppressing motion artifacts introduced by movement of a radar detection system. Briefly described, in architecture, one embodiment of the system, among others, can be implemented as ... | 06/21/2005 |
| 6759954 | Multi-dimensional vector-based occupancy sensor and method of operating same A multiple dimension vector-based occupancy sensor. One or more sensors (for example, ultrasonic and/or infrared sensors) are used to produce one or more occupancy estimator vectors. The individual dimensions of the one or more occupancy estimator vectors are combin... | 07/06/2004 |
| 6703932 | Intrusion detection and warning system A warning system comprises a piezo-electric ceramic capable of resonating with an ultrasonic wave having a frequency within a predetermined frequency band and thus outputting an electric signal, a resonator capable of detecting only a signal component hav... | 03/09/2004 |
| 6198385 | Entering detecting system for vehicles In an entering detecting system for vehicles, a received ultrasonic signal is amplified by an amplifier circuit so that a Doppler signal may be generated from an amplified signal and a transmission signal for detecting an entering of unauthorized person i... | 03/06/2001 |
| 6157293 | Device for detecting the intrusion of a body in a predetermined space The device comprises a transmitter (7) transmitting ultrasound into a predetermined space (5), a sensor (8) which senses the echoes from the transmission by the transmitter into the space in order to deliver a signal representative of the echoes, and elec... | 12/05/2000 |
| 6062076 | Ultrasonic monitoring method and system for wake turbulence useful at runways Two techniques for detecting vortices and their associated circulation are disclosed. The first is termed a closed path configuration, and the second is termed the dual path configuration. These techniques are useable for the detection of wake turbulence ... | 05/16/2000 |
| 5978315 | Feed waste detector A method and a device for detecting fodder waste/loss within a fish enclosure (1), where a sound transmitter (4) and a hydrophone (6) are disposed as an upwardly directed echo sounder close to the bottom of the enclosure (1). Sound echoes from objects sit... | 11/02/1999 |
| 5959534 | Swimming pool alarm A method and apparatus for detecting unauthorized or accidental entry of an object into a body of water is disclosed, wherein the frequency or frequency range of sound waves in a body of water generated by the entry of the object into the body of water is... | 09/28/1999 |
| 5900834 | Doppler shift detector A Doppler shift detector for determining the Doppler shift between a transmit signal and a receive signal uses clocked delay lines. The clocked delay lines count the number of edges in an applied signal thereto (e.g. the receive signal) at various positio... | 05/04/1999 |
| 5856778 | Intrusion detecting apparatus for a vehicle An intrusion detecting apparatus for a vehicle comprises: a doppler shift signal outputting unit for outputting a doppler shift signal in response to a reflected and received ultrasonic signal from an ultrasonic receiver and a transmitted ultrasonic signa... | 01/05/1999 |
| 5850184 | Ultrasonic tool confirmation sensor A tool detection system combines a sensor nozzle with an ultrasonic transducer capable of propagating and detecting ultrasonic waves. A wave is propagated in a coolant fluid stream directed at a tool to be monitored. A control unit powers the ultrasonic t... | 12/15/1998 |
| 5821854 | Security system for a personal computer A security system (300) for a personal computer maintains computer terminal (302) in an active mode of operation while the user is within range of the terminal. The system includes a radio (314) worn by a user (316) which generates a low level RF signal (... | 10/13/1998 |
| 5684458 | Microwave sensor with adjustable sampling frequency based on environmental conditions An apparatus and method for varying the sampling frequency of a Doppler effect device, based on environmental conditions, is described comprising: (i) a transmitter for transmitting energy into a protected area; (ii) a receiver for receiving energy reflec... | 11/04/1997 |
| 5682134 | Method of operating a device for monitoring the interior of an automotive vehicle A method of operating a system for monitoring the interior of a motor vehicle in which a rest signal amplitude is measured for the acoustic receiver or receivers in the absence of sound and is stored in memory while an actual reading is taken of the measu... | 10/28/1997 |
| 5646907 | Method and system for detecting objects at or below the water's surface A method and system are provided for detecting objects at or below a surf of a body of water. A focused beam of amplitude varying electromagnetic radiation, e.g., a pulsed laser beam, is directed through the air towards the water's surface. Acoustic ener... | 07/08/1997 |
| 5640143 | Occupancy sensor and method of operating same An occupancy sensor that provides improved performance by the inclusion of a microprocessor that controls the sensing transducers and processes the received signal to optimize desired detection performance. The occupancy sensor includes a quadrature detec... | 06/17/1997 |
| 5638048 | Alarm system for swimming pools A sonar, lidar, or radar system generates an alarm signal if a child enters a swimming pool when the system is enabled, and includes multiple safeguards against sounding false alarms due to wind-activated waves in the pool or self interference arising fro... | 06/10/1997 |
| 5598042 | Moveable desktop load controller A device for controlling power to an electrical load. The device has two components: a portable desktop detector unit and an electrical powerstrip. The desktop detector detects the presence of a human in a room and sends signals to the powerstrip to suppl... | 01/28/1997 |
