Patents by Inventor Siddharth S. Hazra
Siddharth S. Hazra 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: 11308685Abstract: Various implementations disclosed herein include devices, systems, and methods that dynamically-size zones used in foveated rendering of content that includes text. In some implementations, this involves adjusting the size of a first zone, e.g., a foveated gaze zone (FGZ), based on the apparent size of text from a viewpoint. For example, a FGZ may be increased or decreased in width, height, diameter, or other size attribute based on determining an angle subtended by one or more individual glyphs of the text from the viewpoint. Various implementations disclosed herein include devices, systems, and methods that select a text-rendering algorithm based on a relationship between (a) the rendering resolution of a portion of an image corresponding to a part of a glyph and (b) the size that the part of the glyph will occupy in the image.Type: GrantFiled: September 22, 2020Date of Patent: April 19, 2022Assignee: Apple Inc.Inventors: Siddharth S. Hazra, William J. Dobbie, Moinul H. Khan, Yanli Zhang, Yohan Rajan, Arthur Y. Zhang
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Patent number: 11106273Abstract: A wearable system with a gestural interface for wearing on, for instance, the wrist of a user. The system comprises an ultrasonic transceiver array structure and may comprise a pico projector display element for displaying an image on a surface. User anatomical feature inputs are received in the form of ultrasound signals representative of a spatio-temporal cross-section of the wrist of the user by articulating wrist, finger and hand postures, which articulations are translated into gestures. Inputs from inertial and other sensors are used by the system as part of the anatomical feature posture identification method and device. Gestures are recognized using a mathematically-modeled, simulation-based set of biological metrics of tissue objects, which gestures are converted to executable computer instructions. Embodiments of the system disclosed herein may also be used to monitor biometric and health data over computer networks or using onboard systems.Type: GrantFiled: October 28, 2016Date of Patent: August 31, 2021Assignee: Ostendo Technologies, Inc.Inventors: Siddharth S. Hazra, Hussein S. El-Ghoroury
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Publication number: 20210090323Abstract: Various implementations disclosed herein include devices, systems, and methods that dynamically-size zones used in foveated rendering of content that includes text. In some implementations, this involves adjusting the size of a first zone, e.g., a foveated gaze zone (FGZ), based on the apparent size of text from a viewpoint. For example, a FGZ may be increased or decreased in width, height, diameter, or other size attribute based on determining an angle subtended by one or more individual glyphs of the text from the viewpoint. Various implementations disclosed herein include devices, systems, and methods that select a text-rendering algorithm based on a relationship between (a) the rendering resolution of a portion of an image corresponding to a part of a glyph and (b) the size that the part of the glyph will occupy in the image.Type: ApplicationFiled: September 22, 2020Publication date: March 25, 2021Inventors: Siddharth S. Hazra, William J. Dobbie, Moinul H. Khan, Yanli Zhang, Yohan Rajan, Arthur Y. Zhang
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Publication number: 20210041705Abstract: A lens module in a head-mounted device may include a fluid-filled chamber, a semi-rigid lens element that at least partially defines the fluid-filled chamber, and at least one actuator configured to selectively bend the semi-rigid lens element. The semi-rigid lens element may become rigid along a first axis when the lens element is curved along a second axis perpendicular to the first axis. Six actuators that are evenly distributed around the periphery of the semi-rigid lens element may be used to control the curvature of the semi-rigid lens element. The semi-rigid lens element may initially be planar or non-planar. For example, the semi-rigid lens element may initially have a spherically convex surface and a spherically concave surface. A tunable spherical lens may be incorporated into the lens module to offset a parasitic spherical lens power from the semi-rigid lens element.Type: ApplicationFiled: October 28, 2020Publication date: February 11, 2021Inventors: James E. Pedder, Igor Stamenov, Cheng Chen, Enkhamgalan Dorjgotov, Graham B. Myhre, Victoria C. Chan, Xiaonan Wen, Peng Lv, Yuan Li, Yu Horie, Siddharth S. Hazra
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Patent number: 10852553Abstract: A lens module in a head-mounted device may include a fluid-filled chamber, a semi-rigid lens element that at least partially defines the fluid-filled chamber, and at least one actuator configured to selectively bend the semi-rigid lens element. The semi-rigid lens element may become rigid along a first axis when the lens element is curved along a second axis perpendicular to the first axis. Six actuators that are evenly distributed around the periphery of the semi-rigid lens element may be used to control the curvature of the semi-rigid lens element. The semi-rigid lens element may initially be planar or non-planar. For example, the semi-rigid lens element may initially have a spherically convex surface and a spherically concave surface. A tunable spherical lens may be incorporated into the lens module to offset a parasitic spherical lens power from the semi-rigid lens element.Type: GrantFiled: July 23, 2019Date of Patent: December 1, 2020Assignee: Apple Inc.Inventors: James E. Pedder, Igor Stamenov, Cheng Chen, Enkhamgalan Dorjgotov, Graham B. Myhre, Victoria C. Chan, Xiaonan Wen, Peng Lv, Yuan Li, Yu Horie, Siddharth S. Hazra
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Publication number: 20200096770Abstract: A lens module in a head-mounted device may include a fluid-filled chamber, a semi-rigid lens element that at least partially defines the fluid-filled chamber, and at least one actuator configured to selectively bend the semi-rigid lens element. The semi-rigid lens element may become rigid along a first axis when the lens element is curved along a second axis perpendicular to the first axis. Six actuators that are evenly distributed around the periphery of the semi-rigid lens element may be used to control the curvature of the semi-rigid lens element. The semi-rigid lens element may initially be planar or non-planar. For example, the semi-rigid lens element may initially have a spherically convex surface and a spherically concave surface. A tunable spherical lens may be incorporated into the lens module to offset a parasitic spherical lens power from the semi-rigid lens element.Type: ApplicationFiled: July 23, 2019Publication date: March 26, 2020Inventors: James E. Pedder, Igor Stamenov, Cheng Chen, Enkhamgalan Dorjgotov, Graham B. Myhre, Victoria C. Chan, Xiaonan Wen, Peng Lv, Yuan Li, Yu Horie, Siddharth S. Hazra
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Patent number: 10522106Abstract: A viewing system is provided including an active transparency modulation film in the form of addressable arrays of electrochromic pixel structures. The viewing system may be used in, for instance, a head-mounted display (HMD) or head-up display (HUD). The film is located on one side of a viewing lens of the system and is selectively variable from opaque to transparent at certain regions on the lens to provide an opaque silhouetted image upon which a virtual image is projected. The viewing system including the film and pixel structure therefore provide improved viewing by minimizing the undesirable effects of image ghosting in a viewed scene.Type: GrantFiled: May 4, 2017Date of Patent: December 31, 2019Assignee: Ostendo Technologies, Inc.Inventors: Siddharth S. Hazra, Hussein S. El-Ghoroury
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Publication number: 20170323615Abstract: A viewing system is provided including an active transparency modulation film in the form of addressable arrays of electrochromic pixel structures. The viewing system may be used in, for instance, a head-mounted display (HMD) or head-up display (HUD). The film is located on one side of a viewing lens of the system and is selectively variable from opaque to transparent at certain regions on the lens to provide an opaque silhouetted image upon which a virtual image is projected. The viewing system including the film and pixel structure therefore provide improved viewing by minimizing the undesirable effects of image ghosting in a viewed scene.Type: ApplicationFiled: May 4, 2017Publication date: November 9, 2017Inventors: Siddharth S. Hazra, Hussein S. El-Ghoroury
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Publication number: 20170123487Abstract: A wearable system with a gestural interface for wearing on, for instance, the wrist of a user. The system comprises an ultrasonic transceiver array structure and may comprise a pico projector display element for displaying an image on a surface. User anatomical feature inputs are received in the form of ultrasound signals representative of a spatio-temporal cross-section of the wrist of the user by articulating wrist, finger and hand postures, which articulations are translated into gestures. Inputs from inertial and other sensors are used by the system as part of the anatomical feature posture identification method and device. Gestures are recognized using a mathematically-modeled, simulation-based set of biological metrics of tissue objects, which gestures are converted to executable computer instructions. Embodiments of the system disclosed herein may also be used to monitor biometric and health data over computer networks or using onboard systems.Type: ApplicationFiled: October 28, 2016Publication date: May 4, 2017Inventors: Siddharth S. Hazra, Hussein S. El-Ghoroury