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Barrie
Barrie Clark, Dundee GB
| Patent application number | Description | Published |
|---|---|---|
| 20090159687 | Card reader device - A card reader device has a card entrance for receiving a card and a card enclosure in registration with the card entrance. The card enclosure defines an area in which the card is read. The card reader also has a card transport mechanism for drawing a card into the card enclosure and for ejecting the card from the card enclosure. A sensor is provided for sensing displacement of part of the card transport mechanism in a direction transverse to the plane of transport of the card, and a control circuit ascertains if the displacement of the card transport mechanism fulfils an alarm criterion. | 06-25-2009 |
| 20090321623 | Security markers for identifying a source of a substance - A method of identifying a source of a substance incorporating one or more luminescent markers comprises illuminating the substance to stimulate emission from at least one of the luminescent markers. A luminescent signature is generated from the detected luminescent emission. The source of the substance is identified based on a match between the generated luminescent signature and a pre-defined luminescent signature. | 12-31-2009 |
| 20110157292 | PRINTER AND METHOD OF PRINTING - A printer comprises a moveable print head such that print elements of the print head are able to print to two streams of media having different physical locations. | 06-30-2011 |
Barrie Hayes-Gill, Nottingham GB
| Patent application number | Description | Published |
|---|---|---|
| 20090192396 | Apparatus and method for detecting a fetal heart rate - An apparatus and method for detecting the heart rate of a fetus. The apparatus includes three detectors detecting heart beats of the fetus, each detector including at least two electrodes detecting ECG signals, the detectors being positioned on an abdomen of a mother in use. The apparatus also includes a processor coupled to the detectors, the processor being adapted to process the ECG signals received from the detectors and determine a heart rate of the fetus. The method of determining the heart rate of the fetus includes determining a position of the fetus within a womb, placing the detectors on an abdomen of the mother, monitoring the ECG signals obtained from the detectors for a predetermined length of time, and processing the ECG signals obtained from the detectors positioned on the abdomen of the mother to determine heart beats of the mother. | 07-30-2009 |
| 20090306487 | PHOTOPLETHYSMOGRAPHY - A photoplethysmograph device includes a light source for illuminating a target object. A modulator drives the light source such that the output intensity varies as a function of a modulation signal at a modulation frequency. A detector receives light from the target object and generates an electrical output as a function of the intensity of received light. A demodulator with a local oscillator receives the detector output and produces a demodulated output,insensitive to any phase difference between the modulation signal and the oscillator, indicative of blood volume as a function of time and/or blood composition. A number of demodulators may be provided to derive signals from multiple light sources of different wavelengths, or from an array of detectors. The plethysmograph may operate in a transmission mode or a reflectance mode. When in a reflectance mode, the device may use the green part of the optical spectrum and may use polarising filters. | 12-10-2009 |
| 20100294917 | Apparatus and Methods for Imaging - For imaging, an electromagnetic radiation sensor is used to produce an output when illuminated by a modulated laser light. In use, the output is determined by a laser Doppler signal illuminating the sensor. Various examples are described for achieving integration of on-chip processing onto the substrate providing the sensor. In one example, the output of the sensor is a logarithmic function of the illuminating laser Doppler signal. In another example, the output of the sensor is normalized. In another example, an amplifier arrangement is provided to amplify the output of the sensor, the amplifier gain being lower at DC than at the frequency range of the laser Doppler signal. In another example, a filter is integrated into the semiconductor device. In another example, a bandpass filter and frequency weighted filter are provided, and their outputs are processed to average values over time. | 11-25-2010 |
Barrie Keyworth, Ottawa CA
| Patent application number | Description | Published |
|---|---|---|
| 20090268270 | MEMS DEVICE WITH INDEPENDENT ROTATION IN TWO AXES OF ROTATION - A MEMS arrangement is provided that has a top plane containing a rotatable element such as a mirror. There is a middle support frame plane, and a lower electrical substrate plane. The rotatable element is supported by a support frame formed in the middle support frame plane so as to be rotatable with respect to the frame in a first axis of rotation. The frame is mounted so as to be rotatable with respect to a second axis of rotation. Rotation in the first axis of rotation is substantially independent of rotation in the second axis of rotation. | 10-29-2009 |
| 20100265555 | MEMS DEVICE WITH INDEPENDENT ROTATION IN TWO AXES OF ROTATION - A MEMS arrangement is provided that has a top plane containing a rotatable element such as a mirror. There is a middle support frame plane, and a lower electrical substrate plane. The rotatable element is supported by a support frame formed in the middle support frame plane so as to be rotatable with respect to the frame in a first axis of rotation. The frame is mounted so as to be rotatable with respect to a second axis of rotation. Rotation in the first axis of rotation is substantially independent of rotation in the second axis of rotation. | 10-21-2010 |
Barrie Keyworth, Stittsville CA
| Patent application number | Description | Published |
|---|---|---|
| 20090201576 | OPTICAL FIBER AMPLIFIER AND A CONTROL METHOD THEREFOR - A fiber amplifier having two erbium doped fiber coils and a pump laser diode optically coupled, through a fiber array, to a planar lightwave circuit, is described. A photodetector array, a multiport free-space optical isolator, and a strip of thin-film gain flattening filter are attached to a side surface of the planar lightwave circuit, which has a tunable optical power splitter for variably splitting the optical pump power for the laser diode between the two erbium doped fiber coils, and variable tilters for correcting the gain tilt of the amplifier. The variable splitter and the tilters are thermally tunable Mach-Zehnder interferometers. | 08-13-2009 |