Sensotech Inc.

Other

Alliedsignal Inc.

Eli Gal

Uri Agam

Eli Ben-Bassat

Ronen Jashek

Yonatan Gerlitz

Dan Moran

Pino Marcovecchio

Roni Raviv

Yaron Baratz

A system and method for short-range ultrasonic detecting of a target is proposed herein to be used for example in a liquid-dispensing system such as those provided in home refrigerators. The system comprises a sensor assembly including a transmitter and a receiver positioned side by side so as to yield respective transmitting and receiving beams which overlap to define an asymmetrical shaped detection area, a controller coupled to both the transmitter and receiver to activate the transmitter and for receiving echoes indicative of the target from the receiver and to the dispensing system for opening a valve of the dispensing system when a target is detected. Noises and false alarm rate minimization methods are implemented, including variable relevance zones and requiring a void of signal before excitation.

Method and system for short-range ultrasonic location sensing

A presence detection system for level crossing or to detect a target at the intersection of any paths is described herein. The system comprises an ultrasound sensor array positioned at the intersection of the first and second paths for defining a detecting area thereon and for emitting a first trigger signal when the body is in the detecting area; and a controller coupled to the ultrasound sensor array for receiving the first trigger signal and for emitting an alarm signal indicative of the first trigger signal. The sensor array detects the presence of a target by creating acoustic virtual lines which form between emitter and receiver or transducer and reflectors and/or by deploying conical or parallel detecting beams and which can be used, for example to measure the distance between each sensor forming the array and the target. The sensor array can deploy beams or acoustic lines in several plans and therefore allow detecting penetration above the conventional railway crossing barriers.

Presence detection system for path crossing

The adaptive system and method for ultrasound sensing comprises re-evaluating over time the detection threshold for predetermined sensing positions along the scanning direction to cope for the static target and environment changes at the sensing positions. The method includes comparing the measured echo value at each sensing position to a reference echo value corresponding to the same sensing position, and to iteratively determine a new reference value whenever the echo value is greater than the reference echo value and that the difference between the measured echo value and the reference echo value is lower than a detection assurance factor. The use of the adaptive ultrasound sensing system and method allows locating the sensor at different location without requiring a new calibration thereof, since the sensor learns the clutter dynamically and the detection thresholds are being built accordingly without being dependent on the environment in which the sensor is located.

Device and method for adaptive ultrasound sensing

The invention provides for an ultrasonic transducer support with a reflector attached such that a stray energy shield is designed to at least partially envelop the transducer in order to limit the angular range of ultrasonic energy which impinges on the transducer.

Ultrasonic transducer

A safety system for a vehicle including at least one sensor ( ) viewing at least one region ( ) in an interior portion of a vehicle defining a protected volume at least partially in front of the vehicle airbag, and logic circuitry responsive to the at least one sensor ( ) for determining geometric data of objects ( ) in the protected volume.

Vehicle sensor apparatus

Door control apparatus for vehicles including at least one sensor viewing at least one region in the vicinity of a door, logic circuitry responsive to the sensor for providing at least one region clear output signal and automatic door opening and door closing apparatus responsive at least to the absence of a region clear signal to cause opening of the door and responsive at least to the presence of a region clear output signal to cause closing of the door.

Door control apparatus

A platform sensing and control system including a wireless sensor ( ) for sensing at least the presence of a platform ( ) opposite a door ( ) of a railcar and providing an output indication of at least a platform presence in response thereto, and a door control controller ( ) operative in response to the output indication of at least platform ( ) presence for enduring that normally a door ( ) is not opened other than when a platform ( ) is located opposite such door ( ).

Door opening control apparatus

A digital input device for entering data into a digital system, comprises at least two remote sensors and a control unit. A working area is set up in proximity to the sensors and the position of an object within the working area is detected by the input device based on data provided by each sensor and transmitted, by said control unit, to said digital system. The position of an object outside said working area, if detected by said input device, is rejected by said control unit and is not transmitted to said digital system. The sensors can be ultrasonic sensors and the object can be a part of the body of a user. Use of a third sensor allows three-dimensional detection of the object.

Computer input device

Thermal imaging apparatus including a non-linear optomechanical scanner receiving light from a scene and directing it onto an image plane, the scanner defining a non-linear scan velocity in the image plane, a SPRITE detector disposed in the image plane and including first and second spaced contacts and apparatus for applying a bias voltage across said contacts, and apparatus for varying the bias voltage across the contacts as a function of the non-linear scan velocity, thereby to compensate for the non-linearity of the optomechanical scanner.

Thermal imaging apparatus

Temperature measurement apparatus comprising an IR temperature change detector, a chopper for intermittently exposing the detector to an object whose temperature is to be measured, and means for providing an output indication representing the temperature of the object in response to the output of the detector, wherein the chopper is driven by a quartz timepiece movement.

Temperature measurement apparatus

An optical construction toy assembly including modular optical apparatus having optical power and construction apparatus for permitting selectable arrangement of the modular optical apparatus having optical power to selectably define a plurality of different optical devices.

Growing community of inventors

Ramat Gan, Israel

Eli Gal