Abstract: Transcranial Doppler (TCD) monitoring employing an adjustable strap system configured to fit to a head of an examined subject and having one or more TCD probe devices coupled thereto while allowing sliding motion thereover over the temporal and/or suboccipital acoustic windows of the head of the examined subject. A monitoring system is used to monitor angular positions of ultrasonic probe devices of the TCD probe devices and generate control signals to cause generation of TCD probe signals by the ultrasonic probe devices towards the acoustic windows and receive responsive TCD echo signals therethrough at the angular positions of their said ultrasonic probe devices.

Abstract: Vehicular traffic data is obtained using a traffic sensor having an antenna/transceiver module, a DSP and a microcomputer. This involves (a) transmitting radiation at a vehicles on a roadway; (b) receiving the radiation reflected back from the vehicles; (c) producing a stream of electrical signals based on the radiation reflected back from the vehicles; (d) processing the stream of electrical signals using the DSP to determine if a vehicle detection threshold is met, and, if the vehicle detection threshold is met, to determine an initial vehicle position; (e) when the vehicle detection threshold is met, generating a first signal representing the initial vehicle position using the DSP; (f) transmitting the first signal to the microcomputer; (g) deriving a first traffic information signal from the first signal using the microcomputer; (h) transmitting the first traffic information signal to an external traffic management system.

Abstract: A sensor for obtaining vehicular traffic data is described. The sensor includes a housing having a front surface. The sensor also includes an antenna plate having an antenna ground surface and a radiating surface. The antenna plate is disposed within the housing for transmitting radiation to a vehicle through the front surface and for receiving the radiation reflected back from the vehicle through the front surface. A transceiver circuit plate is disposed within the housing for electrically driving the antenna plate. The transceiver circuit plate has a component side for supporting circuit components and a circuit ground side for grounding the circuit components. The antenna ground surface is between the radiating surface and the transceiver circuit plate. A processor unit drives and processes electrical signals from the transceiver circuit plate to obtain vehicular traffic data.

Abstract: A traffic sensor and a method of operating the traffic sensor to collect vehicular traffic data for a road is described. The traffic sensor has (a) a radar module for generating radar-based vehicle data regarding a plurality of vehicles passing the sensor field of view based on detection and measurement of traffic; (b) an image module for generating image data representing a plurality of images of the road and the traffic; and, (c) a traffic sensor enclosure for enclosing both the radar module and the image module.

Abstract: A method and system for determining a position of a vehicle within a field of view using a traffic sensor are provided. This involves (a) mounting the traffic sensor at a fixed location relative to a road; (b) modulating a microwave signal to produce a periodic time-varying modulated signal; (c) radiating the periodic time-varying modulated microwave signal in a radiation beam at a vehicle on a road to generate a reflected modulated microwave signal, wherein the reflected periodic time-varying modulated microwave signal induces a first received signal at a first receiver antenna and a second received signal at a second receiver antenna, the second receiver being spaced from the first receiver; and, (d) determining the position of the vehicle on the road within the field of view based on the periodic time-varying modulated signal, the first received signal, and the second received signal, wherein the position of the vehicle is determinable during a single period of the periodic time-varying modulated signal.

Abstract: A traffic sensor is mounted at a fixed location to monitor multiple lanes of traffic. The traffic sensor (a) generates a programmable time-varying modulating signal; (b) generates a modulated microwave signal based on the programmable time-varying modulating signal; (c) radiates the modulated microwave signal in a radiation beam at an object; (d) provides a proportional calibration signal based on the modulated microwave signal; (e) measures parameters of the calibration signal, and (f) corrects the programmable time-varying modulating signal based on the parameters of the calibration signal.

Abstract: A method of operating a traffic sensor to define ranges of centers of traffic lanes from the traffic sensor is described. The method comprises a) providing a set of lane center variables representing the ranges of the centers of the traffic lanes from the traffic sensor; b) initializing each lane center variable in the set of lane center variables to have an associated starting range value; and then, c) updating the set of lane center variables by, for each vehicle in a plurality of vehicles, i) detecting the vehicle, ii) determining an associated lane center variable having an associated lane center range value closest to the vehicle; iii) estimating a vehicle displacement from the associated lane center range value, and iv) calculating a new lane center range value for the associated lane centre variable using the associated lane center range value and the vehicle displacement.

Abstract: A method and system for determining a position of a vehicle within a field of view using a traffic sensor are provided. This involves (a) mounting the traffic sensor at a fixed location relative to a road; (b) modulating a microwave signal to produce a periodic time-varying modulated signal; (c) radiating the periodic time-varying modulated microwave signal in a radiation beam at a vehicle on a road to generate a reflected modulated microwave signal, wherein the reflected periodic time-varying modulated microwave signal induces a first received signal at a first receiver antenna and a second received signal at a second receiver antenna, the second receiver being spaced from the first receiver; and, (d) determining the position of the vehicle on the road within the field of view based on the periodic time-varying modulated signal, the first received signal, and the second received signal, wherein the position of the vehicle is determinable during a single period of the periodic time-varying modulated signal.

Abstract: A traffic sensor and a method of operating the traffic sensor to collect vehicular traffic data for a road is described. The traffic sensor has (a) a radar module for generating radar-based vehicle data regarding a plurality of vehicles passing the sensor field of view based on detection and measurement of traffic; (b) an image module for generating image data representing a plurality of images of the road and the traffic; and, (c) a traffic sensor enclosure for enclosing both the radar module and the image module.

Abstract: A traffic sensor is mounted at a fixed location to monitor multiple lanes of traffic. The traffic sensor (a) generates a programmable time-varying modulating signal; (b) generates a modulated microwave signal based on the programmable time-varying modulating signal; (c) radiates the modulated microwave signal in a radiation beam at an object; (d) provides a proportional calibration signal based on the modulated microwave signal; (e) measures parameters of the calibration signal, and (f) corrects the programmable time-varying modulating signal based on the parameters of the calibration signal.

Abstract: Vehicular traffic data is obtained using a traffic sensor having an antenna/transceiver module, a DSP and a microcomputer. This involves (a) transmitting radiation at a vehicles on a roadway; (b) receiving the radiation reflected back from the vehicles; (c) producing a stream of electrical signals based on the radiation reflected back from the vehicles; (d) processing the stream of electrical signals using the DSP to determine if a vehicle detection threshold is met, and, if the vehicle detection threshold is met, to determine an initial vehicle position; (e) when the vehicle detection threshold is met, generating a first signal representing the initial vehicle position using the DSP; (f) transmitting the first signal to the microcomputer; (g) deriving a first traffic information signal from the first signal using the microcomputer; (h) transmitting the first traffic information signal to an external traffic management system.

Abstract: A sensor for obtaining vehicular traffic data is described. The sensor includes a housing having a front surface. The sensor also includes an antenna plate having an antenna ground surface and a radiating surface. The antenna plate is disposed within the housing for transmitting radiation to a vehicle through the front surface and for receiving the radiation reflected back from the vehicle through the front surface. A transceiver circuit plate is disposed within the housing for electrically driving the antenna plate. The transceiver circuit plate has a component side for supporting circuit components and a circuit ground side for grounding the circuit components. The antenna ground surface is between the radiating surface and the transceiver circuit plate. A processor unit drives and processes electrical signals from the transceiver circuit plate to obtain vehicular traffic data.

Abstract: A method of operating a traffic sensor to define ranges of centers of traffic lanes from the traffic sensor is described. The method comprises a) providing a set of lane center variables representing the ranges of the centers of the traffic lanes from the traffic sensor; b) initializing each lane center variable in the set of lane center variables to have an associated starting range value; and then, c) updating the set of lane center variables by, for each vehicle in a plurality of vehicles, i) detecting the vehicle, ii) determining an associated lane center variable having an associated lane center range value closest to the vehicle; iii) estimating a vehicle displacement from the associated lane center range value, and iv) calculating a new lane center range value for the associated lane centre variable using the associated lane center range value and the vehicle displacement.

Abstract: A probe device is presented for use in an ultrasound-based measurement device for blood flow measurements in a patient's body. The probe comprises a housing containing a transducer arrangement. An outer surface of the housing, by which the probe is brought to a measurement location in the patient's body, is patterned so as to have at least one projecting portion. The design of the probe enables correct orientation of the transducers with respect to a blood vessel under measurements. The probe device is associated with an operation means for operating the probe, and an indication means for generating output data indicative of measurement results, which are incorporated in a common housing of a hand-held measurement device.

Abstract: A medical device for applying a cyclic therapeutic action to a subject's foot, the device including a platform with at least three independently actuable inflatable bladders staggered therealong to solely underlie the subject's heel, his plantar arch and his foot's front portion including its metatarsals and its toes, respectively, whereby a travelling compressive wave can be cyclically applied to his foot's underside only.

Abstract: A probe device is presented for use in an ultrasound-based measurement device for blood flow measurements in a patient's body. The probe comprises a housing containing a transducer arrangement. An outer surface of the housing, by which the probe is brought to a measurement location in the patient's body, is patterned so as to have at least one projecting portion. The design of the probe enables correct orientation of the transducers with respect to a blood vessel under measurements. The probe device is associated with an operation means for operating the probe, and an indication means for generating output data indicative of measurement results, which are incorporated in a common housing of a hand-held measurement device.

Abstract: A dual ultrasonic transducer probe and a method of utilizing the probe to determine a blood vessel diameter are presented. The probe comprises first and second ultrasound transducers whose ultrasound beams intercept at an acute angle, and which can be so disposed relative to a blood vessel's longitudinal axis that both their ultrasound beam axes intercept the blood vessel's longitudinal axis. The blood vessel diameter determination method is based on the creation of a two-dimensional matrix of complex reflection amplitude values for each of the beams along an axis of its propagation.