Patents by Inventor Arjuna Karunaratne
Arjuna Karunaratne has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9952136Abstract: A cytometry system having a computing system. The system includes a plurality of lasers controlled by the computing system to emit laser light. Each laser is spatially separated along a flow stream path. A detector system configured to receive light pulses from the plurality of lasers. The detector system being coupled to sampling circuitry. The computing system is configured to operate each of the plurality of lasers to independently emit laser light with respect to one another according to time of flight intervals along the flow stream path.Type: GrantFiled: January 7, 2016Date of Patent: April 24, 2018Assignee: STRATEDIGM, INC.Inventors: Shervin Javadi, Arjuna Karunaratne
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Publication number: 20160209318Abstract: A cytometry system having a computing system. The system includes a plurality of lasers controlled by the computing system to emit laser light. Each laser is spatially separated along a flow stream path. A detector system configured to receive light pulses from the plurality of lasers. The detector system being coupled to sampling circuitry. The computing system is configured to operate each of the plurality of lasers to independently emit laser light with respect to one another according to time of flight intervals along the flow stream path.Type: ApplicationFiled: January 7, 2016Publication date: July 21, 2016Inventors: Shervin Javadi, Arjuna Karunaratne
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Patent number: 8570500Abstract: Systems and methods for regarding a cytometry system are disclosed. The system can include a plurality lasers which are spatially separated from each other. Each laser can be assigned to a single detector. The single detector can process multiple events from each laser by digital switching of signal processing circuitry. Additional detectors can be assigned to receive light in a similar manner.Type: GrantFiled: August 20, 2010Date of Patent: October 29, 2013Assignee: Stratedigm, Inc.Inventors: Shervin Javadi, Arjuna Karunaratne
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Publication number: 20120044480Abstract: Systems and methods for regarding a cytometry system are disclosed. The system can include a plurality lasers which are spatially separated from each other. Each laser can be assigned to a single detector. The single detector can process multiple events from each laser by digital switching of signal processing circuitry. Additional detectors can be assigned to receive light in a similar manner.Type: ApplicationFiled: August 20, 2010Publication date: February 23, 2012Inventors: Shervin Javadi, Arjuna Karunaratne
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Patent number: 8001825Abstract: Methods of auto-calibrating a meter are disclosed. In one aspect, the method can include determining a set of calibration information applicable to a sensor and storing the calibration information onto a tag element associated with a sensor dispenser. The tag element can be placed into communication with a reader element that is associated with a meter and which is configured to receive the calibration information so as to allow the meter to use the calibration information in a calibration procedure. Various aspects of a system for auto-calibrating a meter are also disclosed.Type: GrantFiled: November 30, 2007Date of Patent: August 23, 2011Assignee: LifeScan, Inc.Inventors: Jerry T. Pugh, Koon-wah Leong, Arjuna Karunaratne
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Publication number: 20090139300Abstract: A method of auto-calibrating a meter is provided herein. The method can include disposing a sensor within a sensor dispenser associated with a tag element wherein the tag element is configured to store a plurality of sensor-specific information as well as communicate the information to a meter. Next, the method can include placing the sensor dispenser into communication with a meter which is configured to receive and retain a sensor from the sensor dispenser, and also configured to receive the sensor-specific information from the tag element thereby allowing the meter to perform an auto-calibration procedure which is at least partially dependent upon the sensor-specific information. Similarly, a system for auto-calibrating a meter is also provided herein. Additionally, various embodiments of a meter and various embodiments a sensor dispenser are also provided herein.Type: ApplicationFiled: November 30, 2007Publication date: June 4, 2009Applicant: LIFESCAN, INC.Inventors: Jerry T. Pugh, Koon-wah Leong, Arjuna Karunaratne
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Publication number: 20070066940Abstract: An infusion pump (e.g., an electrokinetic infusion pump) includes an infusion pump module and an engine that can drive a moveable piston non-mechanically. In addition, the infusion pump module includes a position detector configured for sensing a dispensing state of the infusion pump module. Such information can be utilized in a control scheme to control fluid displacement within and out of the pump. Descriptions of different types of position detectors, such as magnetic sensors (e.g., an anisotropic magnetic resistive sensor), and their implementation in detecting infusion pump fluid displacement are described.Type: ApplicationFiled: September 18, 2006Publication date: March 22, 2007Applicant: LifeScan, Inc.Inventors: Arjuna Karunaratne, Anthony Lam, Mingqi Zhao, Braddon Van Slyke
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Publication number: 20060247795Abstract: Improved methods to detect when a human body contacts a predetermined portion of a machine are disclosed. The methods distinguish contact with a person from contact with other materials. The methods are particularly applicable in woodworking equipment such as table saws to distinguish contact between a person and the blade of the saw from contact between the blade and wet or green wood.Type: ApplicationFiled: April 15, 2005Publication date: November 2, 2006Inventors: Stephen Gass, Paul Lingane, Arjuna Karunaratne
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Patent number: 5237264Abstract: A remotely controllable power control system wherein the power supplied to a load may be varied locally via an actuator, positionable through a continuous range, on a wall control or from a remote location using a remote control device not electrically wired to the wall control. The load control system includes a transmitter and a wall control/receiver, each having a control actuator for adjusting the power supplied to the load. Control can be obtained by either the transmitter or the wall control/receiver immediately upon manipulation of either control actuator, with the adjustment in power level occurring substantially instantaneously. Communication between the transmitter and the wall control/receiver is by digitally encoded infrared signal.Type: GrantFiled: July 26, 1991Date of Patent: August 17, 1993Assignee: Lutron Electronics Co., Inc.Inventors: Robin Moseley, Joel S. Spira, Arjuna Karunaratne, John Wylie, Jonathan A. Barney
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Patent number: 5144278Abstract: A circuit and apparatus for sensing the adjustment of a variable impedance device includes an elongated switching element having an alternating series of conductive and non-conductive areas. The conductive areas are electrically connected. As the device is adjusted, a wiper alternately operates the switch between open and closed states. A circuit detects the switch-state change and provides a signal which indicates that the device is being adjusted. The signal can, in turn, determine the output of a dimming circuit, a wireless transmitter, etc., or can determine whether power is provided to a microprocessor or the like. In another embodiment of the invention, a variable impedance device includes an end-of-travel return mechanism.Type: GrantFiled: August 1, 1989Date of Patent: September 1, 1992Assignee: Lutron Electronics Co., Inc.Inventors: Robin C. Moseley, Jonathan A. Barney, Arjuna Karunaratne
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Patent number: 5099193Abstract: A remotely controllable power control system wherein the power supplied to a load may be varied locally via an actuator, positionable through a continuous range, on a wall control or from a remote location using a remote control device not electrically wired to the wall control. The load control system includes a transmitter and a wall control/receiver, each having a control actuator for adjusting the power supplied to the load. Control can be obtained by either the transmitter or the wall control/receiver immediately upon manipulation of either control actuator, with the adjustment in power level occurring substantially instantaneously. Communication between the transmitter and the wall control/receiver is by digitally encoded infrared signal.Type: GrantFiled: March 31, 1989Date of Patent: March 24, 1992Assignee: Lutron Electronics Co., Inc.Inventors: Robin Moseley, Joel S. Spira, Arjuna Karunaratne, John Wylie, Jonathan A. Barney