Patents by Inventor Daniel Draper
Daniel Draper 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: 11933476Abstract: Optical lenses and associated luminaire are described herein. In one aspect, a lens comprises a light receiving side comprising grooves for receiving light emitting diodes, the grooves defined by a central refractive region and walls comprising total internal reflection faces; and a light extraction side opposite the light receiving side, the light extraction side comprising refractive extraction surfaces, total internal reflection extraction surfaces, or combinations thereof. In some embodiments, luminaire comprises an array of light emitting diodes; and the lens positioned over the array of light emitting diodes.Type: GrantFiled: September 2, 2020Date of Patent: March 19, 2024Assignee: CREE LIGHTING USA LLCInventors: Jin Hong Lim, Mark Lackey, Rob Sanchez, Charles Draper, Daniel Van Epps, Brad Thomas
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Patent number: 11838058Abstract: A multi-level optical signal is sampled to generate an eye diagram. The signal can be adjusted when eyes in the eye diagram have different heights. More specifically, a first value is determined, and the height of a first eye is adjusted using the first value. The first value is multiplied by a stored factor to produce a second value, and the height of a second eye is adjusted using the second value, and so on for other eyes. As a result, eye heights are the same. Similarly, optical power levels of the signal can be adjusted when the levels are not equally spaced. As a result, the optical power levels are equally spaced.Type: GrantFiled: March 28, 2023Date of Patent: December 5, 2023Assignee: MACOM Technology Solutions Holdings, Inc.Inventors: Daniel Draper, Merrick Brownlee
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Publication number: 20230239055Abstract: A multi-level optical signal is sampled to generate an eye diagram. The signal can be adjusted when eyes in the eye diagram have different heights. More specifically, a first value is determined, and the height of a first eye is adjusted using the first value. The first value is multiplied by a stored factor to produce a second value, and the height of a second eye is adjusted using the second value, and so on for other eyes. As a result, eye heights are the same. Similarly, optical power levels of the signal can be adjusted when the levels are not equally spaced. As a result, the optical power levels are equally spaced.Type: ApplicationFiled: March 28, 2023Publication date: July 27, 2023Inventors: Daniel DRAPER, Merrick BROWNLEE
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Patent number: 11616578Abstract: A multi-level optical signal is sampled to generate an eye diagram. The signal can be adjusted when eyes in the eye diagram have different heights. More specifically, a first value is determined, and the height of a first eye is adjusted using the first value. The first value is multiplied by a stored factor to produce a second value, and the height of a second eye is adjusted using the second value, and so on for other eyes. As a result, eye heights are the same. Similarly, optical power levels of the signal can be adjusted when the levels are not equally spaced. As a result, the optical power levels are equally spaced.Type: GrantFiled: August 13, 2021Date of Patent: March 28, 2023Assignee: MACOM Technology Solutions Holdings, Inc.Inventors: Daniel Draper, Merrick Brownlee
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Publication number: 20230045986Abstract: A multi-level optical signal is sampled to generate an eye diagram. The signal can be adjusted when eyes in the eye diagram have different heights. More specifically, a first value is determined, and the height of a first eye is adjusted using the first value. The first value is multiplied by a stored factor to produce a second value, and the height of a second eye is adjusted using the second value, and so on for other eyes. As a result, eye heights are the same. Similarly, optical power levels of the signal can be adjusted when the levels are not equally spaced. As a result, the optical power levels are equally spaced.Type: ApplicationFiled: August 13, 2021Publication date: February 16, 2023Inventors: Daniel DRAPER, Merrick BROWNLEE
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Patent number: 11153220Abstract: The techniques disclosed herein determine a location independent network delay via a network monitoring device. Such techniques particularly include determining various delays such as a zero window delay, an advertised window delay, and a congestion window delay (including slow start delays).Type: GrantFiled: March 6, 2018Date of Patent: October 19, 2021Assignee: AirMagnet, Inc.Inventors: Craig Odell, Daniel Prescott, Douglas M. Roberts, Daniel Draper, Jason Liptak
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Publication number: 20180280646Abstract: Ventilation therapy systems and methods are disclosed. The system comprises a computing device, and a plurality of sensors for acquiring a physiological bioelectrical impedance signal from a patient, wherein the sensors are functionally connected to the computing device. The computing device receives the physiological bioelectrical impedance signal from the sensors, analyzes the physiological bioelectrical impedance signal, based on the analyzed physiological bioelectrical impedance signal, monitors the patient's respiratory status before and/or after extubation, and provides audible or visual recommendations for additional respiratory treatment or medications based on the patient's respiratory status.Type: ApplicationFiled: June 7, 2018Publication date: October 4, 2018Inventors: Jenny Freeman, Jordan Brayanov, Mark H. Strong, Daniel Draper, Chunyuan Qiu
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Publication number: 20180198721Abstract: The techniques disclosed herein determine a location independent network delay via a network monitoring device. Such techniques particularly include determining various delays such as a zero window delay, an advertised window delay, and a congestion window delay (including slow start delays).Type: ApplicationFiled: March 6, 2018Publication date: July 12, 2018Applicant: AirMagnet, Inc.Inventors: Craig Odell, Daniel Prescott, Douglas M. Roberts, Daniel Draper, Jason Liptak
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Publication number: 20150271071Abstract: The techniques disclosed herein determine a location independent network delay via a network monitoring device. Such techniques particularly include determining various delays such as a zero window delay, an advertised window delay, and a congestion window delay (including slow start delays).Type: ApplicationFiled: March 18, 2014Publication date: September 24, 2015Applicant: Fluke CorporationInventors: Craig Odell, Daniel Prescott, Douglas M. Roberts, Daniel Draper, Jason Liptak
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Patent number: 8750341Abstract: An optical signal generator is configured with an associated control system and driver configured to reduce speckle. Speckle reduction occurs by pulsing the drive signal between a first current level and a second current level. These pulses force the optical signal generator to introduce oscillations into the optical signal. The coherence of the emitted light is reduced during the period of oscillations in the optical signal, which reduces speckle. In one embodiment, the pulsing of the drive signal brings the drive signal down to a level near or below threshold, which in turn intermittently turns off the optical signal output. Returning the optical signal to a desired optical output intensity introduces the speckle reducing oscillation. The pulse frequency, and duty cycle is controlled by a duty cycle control signal to modulate overall optical power and adjust amount of despeckle.Type: GrantFiled: July 15, 2008Date of Patent: June 10, 2014Assignee: Mindspeed Technologies, Inc.Inventors: Cristiano Bazzani, Daniel Draper, Kevin B. McDonald
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Patent number: 8509629Abstract: The invention relates to amplifiers and in particular, to a transimpedance amplifier for high rate applications. Disclosed is a two stage transimpedance amplifier having a first stage comprising an amplifier and a load and a second stage comprising an amplifier and a resistor. Negative feedback is provided through a feedback resistor. Only two voltage conversions occur which reduces phase distortion, as compared to three stage transimpedance amplifiers which perform 3 voltage conversions.Type: GrantFiled: October 24, 2008Date of Patent: August 13, 2013Assignee: Mindspeed Technologies, Inc.Inventors: Hehong Zou, Krishna Shivaram, Daniel Draper
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Patent number: 8243211Abstract: A projection system with one or more light sources reduced power consumption and optional scanning capability is disclosed. A controller processes image data to generate light source control signals and pixel screen control signals which are coordinated to generate an image. Reductions in power consumption occur by matching the light output from the light source to the brightest pixel(s) in the pixel screen for a particular frame. By setting the light output level to an intensity or duration matched to only the maximum level corresponding to a image frame, power consumption is reduced as compared to an embodiment which sets the light source output to its maximum level or maximum duration. The pixel screen, which may be an LCD screen, sets pixel areas corresponding to the brightest pixels as transparent and other, less bring pixels on the pixel screen are set to appropriate levels of reduced transparency.Type: GrantFiled: March 30, 2009Date of Patent: August 14, 2012Assignee: Mindspeed Technologies, Inc.Inventors: Cristiano Bazzani, Daniel Draper
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Patent number: 7853154Abstract: An optic signal transmit system and biasing method and apparatus and system is disclosed to reduce power consumption during non-transmit periods. An optic signal generator receives a bias signal and an outgoing signal. A burst/transmit enable signal enables the transmit system into transmit mode, such as during a transmit window in a time multiplexed environment such as PON networks. A bias circuit biases the driver and/or optic signal generator. To realize power savings, the bias circuit includes one or more stages which are selectively enabled to adequately bias the driver and optic signal generator during transmit windows but disabled during periods when the system is not transmitting. The bias circuit may comprise a current mirror with a reference device, a fixed device, and switched device, which is selectively included in the circuit by a bias switch. The bias switch is responsive to a burst/transmit enable signal or a signal related thereto.Type: GrantFiled: January 12, 2007Date of Patent: December 14, 2010Assignee: Mindspeed Technologies, Inc.Inventors: Quazi Ikram, Cristiano Bazzani, Daniel Draper, Maurice M. Reintjes
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Patent number: 7684452Abstract: Various circuits and methods are provided for driving a laser. A laser driver circuit is configured to generate a modulated current through a laser. Also, a peak current source is employed to generate a peak current that is differentially applied to the laser to enhance a transition rate of the laser.Type: GrantFiled: November 1, 2005Date of Patent: March 23, 2010Assignee: Mindspeed Technologies, Inc.Inventors: Daniel Draper, Jerome Garez
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Patent number: 7680164Abstract: Various laser drivers and methods are provided. In one embodiment, a laser driver is provided that comprises a laser driver circuit having a common anode portion and a common cathode portion. The common anode portion and the common cathode portion are each configured to drive a laser. Also, the laser driver includes a control input to alternatively enable one of the common anode portion and the common cathode portion to drive the laser.Type: GrantFiled: May 31, 2005Date of Patent: March 16, 2010Assignee: Mindspeed Technologies, Inc.Inventors: Daniel Draper, Anping Liu, Maurice M. Reintjes, Jerome Garez, Kenneth Tsui
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Patent number: 7620329Abstract: A method and apparatus is disclosed for optic signal power control to maintain a desired or optimum optic signal power level. During start-up, a default or target value from memory may be utilized to bias or otherwise control operation of an optic signal generator or driver. During operation, pre-stored values may continue to be utilized or an open loop or closed loop control system may be utilized. An open loop control system may incorporate a temperature module or a timer module to account for changes in environment or changes due to aging that may undesirably affect system operation. A closed loop control system may incorporate one or more feedback loops that generate a compensation value to account for detected changes. In one configuration one or more peak values of the actual optic signal, or a portion thereof, are detected and processed to generate the compensation signal.Type: GrantFiled: November 19, 2004Date of Patent: November 17, 2009Assignee: Mindspeed Technologies, Inc.Inventors: Maurice M. Reintjes, Daniel Draper, Gilberto I. Sada, Keith R Jones
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Patent number: 7608806Abstract: A method and apparatus is disclosed for optic signal power control to maintain a desired or optimum optic signal power level. During start-up, a default or target value from memory may be utilized to bias or otherwise control operation of an optic signal generator or driver. During operation, one or more parameters or aspects of the optic module or the environment may be monitored. In response to the monitoring one or more control signal may be generated to created to modify bias level, modulation level, or both. The monitoring may monitor the optic signal itself. The bias level and modulation level may be changed simultaneously.Type: GrantFiled: May 20, 2005Date of Patent: October 27, 2009Assignee: Mindspeed Technologies, Inc.Inventors: Daniel Draper, Maurice M. Reintjes, Gilberto I. Sada, Keith R. Jones
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Publication number: 20090256973Abstract: A projection system with one or more light sources reduced power consumption and optional scanning capability is disclosed. A controller processes image data to generate light source control signals and pixel screen control signals which are coordinated to generate an image. Reductions in power consumption occur by matching the light output from the light source to the brightest pixel(s) in the pixel screen for a particular frame. By setting the light output level to an intensity or duration matched to only the maximum level corresponding to a image frame, power consumption is reduced as compared to an embodiment which sets the light source output to its maximum level or maximum duration. The pixel screen, which may be an LCD screen, sets pixel areas corresponding to the brightest pixels as transparent and other, less bring pixels on the pixel screen are set to appropriate levels of reduced transparency.Type: ApplicationFiled: March 30, 2009Publication date: October 15, 2009Inventors: Cristiano Bazzani, Daniel Draper
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Patent number: 7583902Abstract: A method and apparatus configured to incorporate system data for transmission as part of or concurrently with network data. The system data may comprise communication system data for use in controlling or monitoring a communication system. The system data may be is utilized to control or adjust the amplitude or intensity of the network data to thereby amplitude modulate the system data into or with the transmission of the network data. By monitoring the amplitude or intensity of the received network data signal, the system data may be recovered. An automatic gain control or bias loop may be monitored to detect the amplitude modulation of the network data. The system data may be encoded.Type: GrantFiled: August 10, 2004Date of Patent: September 1, 2009Assignee: Mindspeed Technologies, Inc.Inventors: Daniel Draper, Maurice M. Reintjes, Gilberto I. Sada, Keith R. Jones
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Publication number: 20090175302Abstract: An optical signal generator is configured with an associated control system and driver configured to reduce speckle. Speckle reduction occurs by pulsing the drive signal between a first current level and a second current level. These pulses force the optical signal generator to introduce oscillations into the optical signal. The coherence of the emitted light is reduced during the period of oscillations in the optical signal, which reduces speckle. In one embodiment, the pulsing of the drive signal brings the drive signal down to a level near or below threshold, which in turn intermittently turns off the optical signal output. Returning the optical signal to a desired optical output intensity introduces the speckle reducing oscillation. The pulse frequency, and duty cycle is controlled by a duty cycle control signal to modulate overall optical power and adjust amount of despeckle.Type: ApplicationFiled: July 15, 2008Publication date: July 9, 2009Inventors: Cristiano Bazzani, Daniel Draper, Kevin B. McDonald