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Greendale
Martin Greendale, St. Jean-Sur-Richelieu CA
| Patent application number | Description | Published |
|---|---|---|
| 20090245947 | UNIVERSAL ROTARY CUTTER HEAD WITH BACK CLAMPING SYSTEM AND CONSTANT CUTTING DIMENSIONS AND CONSTANT WEIGHT REGRIDABLE INSERTS - A rotary cutting tool has a cutting insert clamped from behind by a backing clamp against a frontal abutment defined in the body of the rotary cutter head. The clamp backs the cutting insert against the cutting pressure during operation and provides for the use of a same rotary cutter with different profiles of cutting inserts. Plugs of predetermined weight can be inserted in pre-formed holes in the cutting insert to permit recalibration of the insert after a sharpening operation. | 10-01-2009 |
Steve Greendale, Essex GB
| Patent application number | Description | Published |
|---|---|---|
| 20090295620 | RADAR SYSTEM - Electronically steered radar systems such as frequency scanning radars are particularly suitable for detecting and monitoring slow moving, ground-based targets. So-called crawler radar systems are intended for detection of targets that deliberately attempt to avoid detection by keeping low and by moving slowly. Disclosed is a radar system which includes an electronically steered antenna and a receiver arranged to process signals received from a target located at a distance from the radar system so as to identify a Doppler frequency associated with the target. The antenna stares at, rather than glides past, the target surrounding clutter. This means that the spectral spreading of static ground clutter associated with mechanical radar systems can be eliminated, overcoming one of the shortcomings of mechanical radar systems that would otherwise render a crawler radar system unsuitable for Doppler processing. | 12-03-2009 |
Steve Greendale, Cambridge GB
| Patent application number | Description | Published |
|---|---|---|
| 20080284651 | RADAR SYSTEM - Embodiments of the invention are concerned with a radar system, and relates specifically to scanning radar systems that are suitable for detecting and monitoring ground-based targets. | 11-20-2008 |
| 20090273505 | RADAR SYSTEM - A scanning radar system suitable for detecting and monitoring ground-based targets includes a frequency generator, a frequency scanning antenna, and a receiver arranged to process signals received from a target so as to identify a Doppler frequency associated with the target. The frequency generator generates sets of signals, each set having a different characteristic frequency, and includes a digital synthesiser arranged to modulate a continuous wave signal of a given characteristic frequency by a sequence of modulation patterns to generate one set of signals. The frequency scanning antenna cooperates with the frequency generator to transceive radiation over a region having an angular extent dependent on the generated frequencies. Digital synthesiser techniques capable of precise frequency generation and control are combined with passive frequency scanning and Doppler processing techniques, enabling accurate control of range and scan rates, and optimisation of range cell size for factors such as slow and fast target detection and Signal to Noise ratio, so that targets can be detected at distances considerably farther away than is possible with known systems having similar power requirements. | 11-05-2009 |
Steven Walter Greendale, Cambridge GB
| Patent application number | Description | Published |
|---|---|---|
| 20090305640 | Vehicle locating unit with improved power management method - A method of checking messages from a network of communication sources includes initially testing the signal strength of a plurality of communication sources, storing the identity of the communication sources with the two strongest signals, and alternatively entering a sleep mode and a wake-up mode, the wake-up mode synchronized to the communication source with the strongest signal. The method further includes testing the signal strength of one additional communication source, switching synchronization to the additional communication source if said source presents a signal stronger than the signal of a stored communication source with the strongest signal, and replacing the identity of any stored communication source if an additional communication sources tested in sequence presents a signal stronger than the signal of said stored communication source. | 12-10-2009 |