Hazelden
Robert C. Hazelden, Temecula, CA US
Patent application number | Description | Published |
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20100152769 | LOCKING COMPONENT FOR AN EMBOLIC FILTER ASSEMBLY - A locking component for locking a medical device onto a guide wire. Such medical devices include, for example, an embolic filter assembly used to capture embolic material that may be created and released into a patient's vasculature during a stenting or angioplasty procedure. The embolic filter assembly tracks along the guide wire, and is delivered to a treatment site where it is locked in place and deployed. The locking component enables the filter assembly to lock onto any standard guide wire, and does not require a modified guide wire that has a specially-designed fitting or stop to accomplish the locking function. | 06-17-2010 |
Roger John Hazelden, Tamworth GB
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20100182018 | Capacitance Sensing Apparatus - A capacitance sensing apparatus for use in a position sensing apparatus, comprising a first set of electrodes and a second set of electrodes and a capacitance sensing circuit arranged to determine, in use in a normal operating mode, the capacitance between each pairing of electrodes comprising one from the first set and one from the second set, in which the apparatus is further provided with at least one group switch arranged to selectively electrically connect together groups of the electrodes within the sets of electrodes, in which, in use in a low resolution mode of the apparatus the or each group switch connects together the groups of electrodes and the capacitance sensing circuit is arranged to determine the capacitance between the each pairing of groups of electrodes in one set and the electrodes or groups of electrodes of the other set. Typically, the apparatus is used in conjunction with a display to form a touch-sensitive display. It may be used in a position sensing apparatus for determining the proximity and position of an object to the apparatus, and is particularly applicable to use in a console of a motor vehicle of the type having the console centrally between two passenger seats. | 07-22-2010 |
Roger John Hazelden, Staffordshire GB
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20100121504 | AIRCRAFT LANDING GEAR MONITORING APPARATUS - An apparatus is disclosed for monitoring the load on at least one part of an aircraft landing gear during landing of the aircraft. The apparatus comprises a housing containing a sensor which senses a parameter indicative of the load in the part of the landing gear, a processor which receives signals from the sensor and processes the signals to produce data representative of the parameter measured by the sensor, a battery which provides electrical power to the processor, a memory for storing measurement data from the processor, and a wireless transmitter which is controlled by the processor. The wireless transmitter is arranged to transmit at least some of the measurement data from the processor to a remote device located outside of the housing. | 05-13-2010 |
Roger John Hazelden, Wilnecote GB
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20120169877 | RAIN DETECTION APPARATUS AND METHOD - A rain detection apparatus includes a camera that views a surface and a processor that captures an image from the camera. The processor generates a signal indicative of rain on the surface from information contained in the captured image and optionally drives a surface cleaning apparatus in response thereto. The apparatus captures images focused at a plurality of distances. The processor includes an edge detector that detects edges visible in the captured image and a difference structure that calculates the difference between the number of edges visible between differing images. The edge detector disregards edges close to areas of light larger than the largest raindrop that is desired or expected to be detected. The apparatus optionally includes a backlight, and the difference in numbers of edges between frames with and without the backlight illuminated are used to distinguish between background features and rain on the surface. | 07-05-2012 |
20120169878 | RAIN DETECTION APPARATUS AND METHOD - A rain detection apparatus includes a camera that views a surface and a processor that captures an image from the camera. The processor generates a signal indicative of rain on the surface from information contained in the captured image and optionally drives a surface cleaning apparatus in response thereto. The apparatus captures images focused at a plurality of distances. The processor includes an edge detector that detects edges visible in the captured image and a difference structure that calculates the difference between the number of edges visible between differing images. The edge detector disregards edges close to areas of light larger than the largest raindrop that is desired or expected to be detected. The apparatus optionally includes a backlight, and the difference in numbers of edges between frames with and without the backlight illuminated are used to distinguish between background features and rain on the surface. | 07-05-2012 |
20120182424 | RAIN DETECTION APPARATUS AND METHOD - A rain detection apparatus includes a camera that views a surface and a processor that captures an image from the camera. The processor generates a signal indicative of rain on the surface from information contained in the captured image and optionally drives a surface cleaning apparatus in response thereto. The apparatus captures images focused at a plurality of distances. The processor includes an edge detector that detects edges visible in the captured image and a difference structure that calculates the difference between the number of edges visible between differing images. The edge detector disregards edges close to areas of light larger than the largest raindrop that is desired or expected to be detected. The apparatus optionally includes a backlight, and the difference in numbers of edges between frames with and without the backlight illuminated are used to distinguish between background features and rain on the surface. | 07-19-2012 |
Roger John Hazelden, Tamworth West Midlands GB
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20150162981 | Remote Sensing Device and Monitoring Apparatus - A remote sensor device comprises at least one sensor that produces an output signal indicative of the value of a measure, and a reflective display that is positioned such that it is visible along a line of sight from a remote location, the reflective display comprising at least two retro-reflective assemblies, each of which is arranged to reflect a variable fraction of radiation incident upon the reflective assembly back towards a source in response to respective control signals applied to the reflector assemblies. Each of the reflector assemblies preferentially reflects one wavelength of the incident radiation or preferentially removes at least one wavelength of the incident radiation that is not preferentially reflected or removed by the other reflector assembly. The device further comprises modulating means for modulating the control signals applied to the reflector assemblies as a function of the value of the output signal from the sensor so as to modulate the fractions of incident light reflected by the display. | 06-11-2015 |