Patents by Inventor Bergen Albert Fletcher
Bergen Albert Fletcher 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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Publication number: 20240079851Abstract: A laser display may include a light engine, which includes a laser diode and a temperature sensor configured to measure a temperature of the laser diode. The light engine may be coupled to a controller configured to determine a drive current for the laser diode to generate an optical power based on a threshold of the laser diode and an efficiency of the laser diode. The controller is configured to calculate the threshold and the efficiency of the laser diode at the measured temperature using a threshold model and an efficiency model of the laser diode, which are generated using a calibration process.Type: ApplicationFiled: September 6, 2022Publication date: March 7, 2024Inventors: Daniel Malea, Bergen Albert Fletcher, Matthew Broga, Nathniel Ayalew
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Publication number: 20230113160Abstract: A laser display system 100 is configured to increase the dynamic range of a laser diode by modulating an operating current applied to the laser diode based on a desired sequence of brightness levels and a temperature of the laser diode. In some embodiments, a measuring circuit measures a voltage of the laser diode at a given current, which indirectly indicates the temperature of the laser diode, thus obviating the need for a direct measurement of temperature. In addition, in some embodiments, the measuring circuit identifies a threshold current of the laser diode based on a range of current values at which values of the current multiplied by the derivative of the voltage against the current vary relatively rapidly. By compensating for temperature effects and identifying the threshold current, a driver of the laser diode more precisely controls light output of the laser diode across an increased dynamic range.Type: ApplicationFiled: December 28, 2021Publication date: April 13, 2023Inventors: Aurelien Jean Francois David, Bergen Albert Fletcher, Stuart James Myron Nicholson, Patrick F. Brinkley
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Patent number: 9280184Abstract: A method of adjusting electromagnetic radiation transmitted by an optical element is described. The method includes sensing the electromagnetic radiation transmitted by the optical element to produce sensed electromagnetic radiation information, and adjusting the sensed electromagnetic radiation information to produce adjusted electromagnetic radiation information based on the a spectral transmission of the optical element.Type: GrantFiled: June 10, 2011Date of Patent: March 8, 2016Assignee: BLACKBERRY LIMITEDInventors: Antanas Matthew Broga, Bergen Albert Fletcher
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Patent number: 9275571Abstract: Various embodiments include devices, methods, circuits, data structures, and software that allow for rapid variation in the luminance of an OLED display panel. An OLED display driver circuit can include a first input, a second input, and a scaling circuit. The first input is to receive a scaling factor. The second input is to receive an image input signal including a digital representation of a desired output for a pixel. The scaling circuit is to multiply a pixel-level output voltage associated with the desired output for the pixel by the scaling factor.Type: GrantFiled: February 25, 2011Date of Patent: March 1, 2016Assignee: BlackBerry LimitedInventors: Michael Lorne Purdy, Bergen Albert Fletcher, James Alexander Robinson
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Patent number: 9141243Abstract: An electronic device includes a display controller, first drive electrodes operably coupled to the display controller to drive the first drive electrodes to detect touches on a display while the electronic device is operating in a normal power condition, a touch controller operably coupled to the display controller, second drive electrodes operably coupled to the touch controller to drive the second drive electrodes to detect touches on the display while the electronic device is operating in a reduced power condition, and sense electrodes operably coupled to the touch controller.Type: GrantFiled: September 3, 2013Date of Patent: September 22, 2015Assignee: BlackBerry LimitedInventors: Christopher Ying Wai Ho, Amit Pal Singh, Bergen Albert Fletcher
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Patent number: 9114982Abstract: Applying quantum dots to surface features of an electronic device to augment or replace reflective and transmissive features. Applying quantum dots can yield more efficient illumination of those features and can permit use of diverse internal light sources to cause those features to emit any color of visible light. An electronic device, keyboard for same and method of applying features to areas of the exterior surface of an electronic device are provided. Quantum dots are applied to an area of the exterior surface that is illuminated by the device's internal light source. The quantum dots absorb incident light then emit predetermined longer wavelength light. The interior light may be a UV light, high energy light emitting diode, or back light. The quantum dots can be applied to exterior surfaces, buttons or key on electronic devices, mobile devices, and keyboards for mobile devices.Type: GrantFiled: May 18, 2011Date of Patent: August 25, 2015Assignee: BlackBerry LimitedInventors: Michael Lorne Purdy, Bergen Albert Fletcher, James Alexander Robinson
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Publication number: 20150062059Abstract: An electronic device includes a display controller, first drive electrodes operably coupled to the display controller to drive the first drive electrodes to detect touches on a display while the electronic device is operating in a normal power condition, a touch controller operably coupled to the display controller, second drive electrodes operably coupled to the touch controller to drive the second drive electrodes to detect touches on the display while the electronic device is operating in a reduced power condition, and sense electrodes operably coupled to the touch controller.Type: ApplicationFiled: September 3, 2013Publication date: March 5, 2015Applicant: Blackberry LimitedInventors: Christopher Ying Wai HO, Amit Pal SINGH, Bergen Albert FLETCHER
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Patent number: 8872431Abstract: A portable electronic device capable of assuming an open configuration and a closed configuration comprises a primary light sensor and a secondary light sensor. When the portable electronic device is in the open configuration, a light sensor signal is selected from the primary light sensor, and when the portable electronic device is in the closed configuration, a light sensor signal is selected from the secondary light sensor.Type: GrantFiled: February 14, 2013Date of Patent: October 28, 2014Assignee: BlackBerry LimitedInventors: Eric Gary Malo, Bergen Albert Fletcher, Ken Wu
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Patent number: 8746944Abstract: A light guide apparatus for an electronic device is described. The light guide apparatus includes a light guide having a first surface and an second surface; a light source, the light guide and the light source being arranged to couple light from the source into the light guide through the second surface of the light guide, the second surface and the light source defining a gap therebetween; and a reflector positioned above the light source and the light guide, and extending over at least a portion of the gap and at least a portion of the front surface of the light guide.Type: GrantFiled: November 28, 2011Date of Patent: June 10, 2014Assignee: BlackBerry LimitedInventors: Hsin Chin Lee, Bergen Albert Fletcher, Antanas Matthew Broga
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Patent number: 8537311Abstract: Various embodiments include devices and methods that allow a display device to, among other things, substantially match reflected color or luminance, or both, between a lens border and an active area of the display device. In one embodiment, a circular polarizer located external to a display area of the device is used. In one embodiment an additional quarter wave retarder located external to the display area is used.Type: GrantFiled: November 3, 2010Date of Patent: September 17, 2013Assignee: BlackBerry LimitedInventors: Bergen Albert Fletcher, Michael Lorne Purdy, Glover Ruiz Prieto, James Alexander Robinson
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Patent number: 8508465Abstract: A method is set forth for automatically adjusting display brightness on a mobile electronic device having a light sensor, display screen and orientation sensor, for legibility under varying lighting conditions and orientations of the device. The method includes obtaining light level samples from the light sensor, and orientation from the orientation sensor, and adjusting backlight intensity of the display responsive to the light level samples and orientation of the device. Preferably, backlight adjustments are made from dim to bright notwithstanding orientation of the device whereas adjustments from bright to dim are made only for orientations of the device where the light sensor is unlikely to be covered.Type: GrantFiled: November 5, 2009Date of Patent: August 13, 2013Assignee: Research In Motion LimitedInventors: Antanas Matthew Broga, Bergen Albert Fletcher, James Alexander Robinson, Thomas James Crugnale
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Patent number: 8471500Abstract: A method and system are set forth for automatically adjusting keypad luminance based on display content. In one embodiment, the method comprises calculating a lighting level based on ambient light; calculating a luminance level of an image on the display; setting a maximum lighting level to the luminance level of the image on the display; and in the event the calculated lighting level exceeds the maximum lighting level then selecting the maximum lighting level, and in the event the calculated lighting level does not exceed the maximum lighting level then selecting the calculated lighting level.Type: GrantFiled: June 30, 2010Date of Patent: June 25, 2013Assignee: Research In Motion LimitedInventors: Bergen Albert Fletcher, Antanas Matthew Broga, William Donald Santo
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Publication number: 20130135892Abstract: A light guide apparatus for an electronic device is described. The light guide apparatus includes a light guide having a first surface and an second surface; a light source, the light guide and the light source being arranged to couple light from the source into the light guide through the second surface of the light guide, the second surface and the light source defining a gap therebetween; and a reflector positioned above the light source and the light guide, and extending over at least a portion of the gap and at least a portion of the front surface of the light guide.Type: ApplicationFiled: November 28, 2011Publication date: May 30, 2013Applicant: RESEARCH IN MOTION LIMITEDInventors: Hsin Chin LEE, Bergen Albert Fletcher, Antanas Matthew BROGA
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Patent number: 8400065Abstract: A portable electronic device capable of assuming an open configuration and a closed configuration comprises a primary light sensor and a secondary light sensor. When the portable electronic device is in the open configuration, a light sensor signal is selected from the primary light sensor, and when the portable electronic device is in the closed configuration, a light sensor signal is selected from the secondary light sensor.Type: GrantFiled: February 25, 2009Date of Patent: March 19, 2013Assignee: Research In Motion LimitedInventors: Eric Gary Malo, Bergen Albert Fletcher, Ken Wu
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Publication number: 20120313908Abstract: A method of adjusting electromagnetic radiation transmitted by an optical element is described. The method includes sensing the electromagnetic radiation transmitted by the optical element to produce sensed electromagnetic radiation information, and adjusting the sensed electromagnetic radiation information to produce adjusted electromagnetic radiation information based on the a spectral transmission of the optical element.Type: ApplicationFiled: June 10, 2011Publication date: December 13, 2012Applicant: RESEARCH IN MOTION LIMITEDInventors: Antanas Matthew BROGA, Bergen Albert Fletcher
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Publication number: 20120292169Abstract: Applying quantum dots to surface features of an electronic device to augment or replace reflective and transmissive features. Applying quantum dots can yield more efficient illumination of those features and can permit use of diverse internal light sources to cause those features to emit any color of visible light. An electronic device, keyboard for same and method of applying features to areas of the exterior surface of an electronic device are provided. Quantum dots are applied to an area of the exterior surface that is illuminated by the device's internal light source. The quantum dots absorb incident light then emit predetermined longer wavelength light. The interior light may be a UV light, high energy light emitting diode, or back light. The quantum dots can be applied to exterior surfaces, buttons or key on electronic devices, mobile devices, and keyboards for mobile devices.Type: ApplicationFiled: May 18, 2011Publication date: November 22, 2012Applicant: Research In Motion LimitedInventors: Michael Lorne PURDY, Bergen Albert Fletcher, James Alexander Robinson
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Publication number: 20120218312Abstract: The disclosure describes a system and method for adjusting a display area for a display for an electronic device. The display system comprises: a display having a first region and a second region; a backlight for the display; and a display adjustment module located adjacent to the first region of the display, the display adjustment module having a first transmissivity mode where light from the backlight passes through the module to the first region and a second transmissivity mode where the light from the backlight is at least partially blocked from passing through the display adjustment module.Type: ApplicationFiled: February 24, 2011Publication date: August 30, 2012Inventors: Michael Andrew GOLDSMITH, Kate Meredith DUDEK, Bergen Albert FLETCHER
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Publication number: 20120218314Abstract: Various embodiments include devices, methods, circuits, data structures, and software that allow for rapid variation in the luminance of an OLED display panel. An OLED display driver circuit can include a first input, a second input, and a scaling circuit. The first input is to receive a scaling factor. The second input is to receive an image input signal including a digital representation of a desired output for a pixel. The scaling circuit is to multiply a pixel-level output voltage associated with the desired output for the pixel by the scaling factor.Type: ApplicationFiled: February 25, 2011Publication date: August 30, 2012Applicant: Research In Motion LimitedInventors: Michael Lorne Purdy, Bergen Albert Fletcher, James Alexander Robinson
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Patent number: 8194028Abstract: The disclosure relates to a system and method for determining pixel intensity values (luma values) for an image being displayed on a display of an electronic device, then adjusting the pixel intensity and the backlight level for the image that is output to a liquid crystal display (LCD). The system comprises: a display for displaying an image to be displayed on the device; an image adjustment module to identify the pixel intensity values of the image, to determine new pixel intensity values for the image based in part on the original pixel intensity values, to provide the (adjusted) image at the new pixel intensity values to the display and to determine a backlight level for the image at the new pixel intensity values. The system further comprises a backlight system to provide a backlight for the adjusted image at the adjusted backlight level.Type: GrantFiled: February 29, 2008Date of Patent: June 5, 2012Assignee: Research In Motion LimitedInventors: Bergen Albert Fletcher, James Robinson, Conrad Aleksander Kreek, David Mak-Fan, Andrew Dewi Williams, Michael Purdy
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Publication number: 20120105774Abstract: Various embodiments include devices and methods that allow a display device to, among other things, substantially match reflected color or luminance, or both, between a lens border and an active area of the display device. In one embodiment, a circular polarizer located external to a display area of the device is used. In one embodiment an additional quarter wave retarder located external to the display area is used.Type: ApplicationFiled: November 3, 2010Publication date: May 3, 2012Applicant: Research In Motion LimitedInventors: Bergen Albert Fletcher, Michael Lorne Purdy, Glover Ruiz Prieto, James Alexander Robinson