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Lowery
Arthur Lowery, Victoria AU
| Patent application number | Description | Published |
|---|---|---|
| 20100247099 | NON-LINEARITY COMPENSATION IN AN OPTICAL TRANSMISSION - A method of transmitting information over a non-linear optical channel includes the step ( | 09-30-2010 |
Arthur Lowery, Kew AU
| Patent application number | Description | Published |
|---|---|---|
| 20100142951 | RECEPTION OF SIGNALS TRANSMITTED OVER A DISPERSIVE OPTICAL CHANNEL - A receiver for recovering transmitted information carried by a received optical signal that has been affected by dispersion includes an optical splitter having an input port arranged to receive the received optical signal, and a plurality of output ports. A proportion of optical power at the input port is transmitted to each of the output ports. A plurality of optical detectors is operably connected to respective output ports of the optical splitter, for generating a corresponding plurality of electrical signals. Optical phase shifters are disposed between the output ports of the optical splitter and respective optical detectors. As a result, each optical phase shifter applies a frequency dependent phase shift to an optical signal passing therethrough. An electronic processor includes analog and/or digital electronic components configured to combine two or more of the plurality of electrical signals, or information recovered separately therefrom, in order to provide improved accuracy or reliability of information recovery as compared with detecting and processing only the received optical signal. The receiver is advantageously able to mitigate the effects of frequency-dependent fading which may occur in intensity modulation/direct detection optical transmission systems due to dispersion in optical transmission paths. | 06-10-2010 |
Arthur Jame Lowery, Victoria AU
| Patent application number | Description | Published |
|---|---|---|
| 20100316393 | METHOD AND APPARATUS FOR RECEPTION OF OPTICAL SIGNALS - An apparatus and method are provided for receiving an optical signal having an optical carrier component and at least one information-bearing optical sideband. In general, an optical filter arrangement ( | 12-16-2010 |
Arthur James Lowery, Kew AU
| Patent application number | Description | Published |
|---|---|---|
| 20090220239 | METHODS AND APPARATUS FOR OPTICAL TRANSMISSION OF DIGITAL SIGNALS - A method of communicating digital information over a dispersive optical channel includes encoding the digital information into a plurality of data blocks, each of which includes a number of bits of the information. A time-varying electrical signal is generated which corresponds with each of said data blocks. The time-varying electrical signal is applied to an optical transmitter ( | 09-03-2009 |
| 20110013914 | METHOD AND APPARATUS FOR IMPROVING RECEPTION OF OPTICAL SIGNALS - A method and apparatus for receiving digital information transmitted via an optical signal over an optical channel wherein the optical signal includes an optical carrier ( | 01-20-2011 |
Arthur James Lowery, Victoria AU
| Patent application number | Description | Published |
|---|---|---|
| 20090169213 | METHODS AND APPARATUS FOR OPTICAL TRANSMISSION OF DIGITAL SIGNALS | 07-02-2009 |
Brett Robert Lowery, Farnborough GB
| Patent application number | Description | Published |
|---|---|---|
| 20090317185 | VEHICLE ARRESTING DEVICE - A vehicle arresting device comprises a net intended to be laid flat on the ground in the path of a target vehicle with an array of upwardly-directed spikes attached to the net along a leading portion, so that when a vehicle runs over the device some of the spikes engage in its front tires and the net is caused to wrap around the front wheels, being pulled tight under the vehicle to prevent further rotation of those wheels. There are two rows of spikes, with the spikes in the second row being substantially longer than the spikes in the leading row. The gauge of the netting also varies, with the leading strip which includes the shorter spikes and back towards the longer spikes being of a thinner gauge, the portion from the longer spikes back to approximately the mid length of the net being of a thicker gauge, and the trailing portion reverting to the thinner gauge. These measures help to ensure that the net is capable of arresting a wide range of vehicles, from passenger cars to trucks. | 12-24-2009 |