公开(公告)号：WO2020123183A1

公开(公告)日：2020-06-18

申请号：PCT/US2019/064090

申请日：2019-12-03

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： LIU, Wenfeng ,  ROPO, Kari Jussi

IPC: G06F3/14 ,  G09G5/12 ,  H04N5/06

Abstract: Systems, apparatuses, and methods are described herein for phase locked multi-display synchronization. In a slave display device, a first tearing effect signal is received that indicates rendering of a first image frame portion of a first image frame by a master display device has at least been initiated. In response to receiving the first tearing effect signal, a second image frame portion of a first image frame is retrieved from a frame buffer and is rendered to a display screen of a slave display device. In response to rendering the retrieved second image frame portion, a second tearing effect signal is generated for receipt by a host device to trigger the host device to transmit a second image frame portion of a second image frame to the slave display device.

公开(公告)号：WO2022250850A1

公开(公告)日：2022-12-01

申请号：PCT/US2022/026869

申请日：2022-04-29

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： SUZUKI, Nobuyuki ,  CHHEN, Mony Rith ,  LIU, Wenfeng ,  KALLIO, Samu Matias ,  ROPO, Kari Jussi ,  YLITALO, Mika

IPC: G09G3/00 ,  G09G5/10

Abstract: The ambient illuminance and light geometry detection system includes a computing process including receiving a hinge angle between two displays of a foldable computing device, illuminance values from illuminance sensors of the displays, and screen activity of each of the displays of the foldable computing device, determining foldable computing device posture information based at least in part on the hinge angle and the screen activity of each of the displays, determining a user facing display of the foldable computing device based at least in part on the device posture information and the screen activity of the displays, assigning differential weights to an illuminance value received from an illuminance sensor of the user facing display compared to an illuminance value received from an illuminance sensor of the non-user facing display and generating an aggregate weighted average illuminance by applying the differential weights to the illuminance values of each of the displays.

公开(公告)号：WO2023278056A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/030160

申请日：2022-05-20

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： SUZUKI, Nobuyuki ,  KALLIO, Samu Matias ,  ROPO, Kari Jussi ,  TAO, Simon

IPC: G06F3/14 ,  G09G3/20 ,  G09G2320/0626 ,  G09G2360/144 ,  G09G3/2092 ,  G09G5/10 ,  H04N21/42202 ,  H04N21/4854 ,  H04N5/58 ,  H05B47/11

Abstract: The virtual ambient illuminance sensor system disclosed herein provides a method including detecting presence of an external device in vicinity of the device, wherein the external device is communicatively connected to the device, communicating with the external device to determine that the external device has an illuminance sensor, based at least in part on determining that the external device has an illuminance sensor; receiving an ambient illuminance snapshot from the external device, storing the ambient illuminance snapshot from the external device in the memory, and generating an ambient illuminance report for an operating system of the device.

公开(公告)号：WO2022231799A1

公开(公告)日：2022-11-03

申请号：PCT/US2022/023571

申请日：2022-04-06

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： KALLIO, Samu Matias ,  ROPO, Kari Jussi ,  LEE, Baek-Woon

IPC: G06F3/14 ,  G09G5/02

Abstract: A method for calibrating the color space on multiple displays in a computing system Includes determining a native color space (116, 118) for each of multiple displays (102, 104); dynamically selecting a target color space (122) to implement on each of the multiple displays based at least on part on the determined native color space of each one of the multiple displays; and instructing one of the multiple displays to map the associated native color space to the target color space.

公开(公告)号：WO2020068225A1

公开(公告)日：2020-04-02

申请号：PCT/US2019/039128

申请日：2019-06-26

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： SUZUKI, Nobuyuki ,  FOGARTY, John Patrick ,  MOO, Aaron Gilbert ,  ROPO, Kari Jussi

IPC: G09G3/34 ,  G09G3/20

Abstract: A backlight control system is provided. A modulation value register is included in memory of the system. A display backlight is included in the system, the display backlight including a light emitting diode (LED) light source configured to illuminate a liquid crystal display (LCD). Processing circuitry included in the system is configured to execute a clock timer and a temporal dither pattern generator. The temporal dither pattern generator is configured to receive a modulation value from the modulation value register, and apply a temporal dither according to a signal from the clock timer to the modulation value to generate a dithered modulation value. A modulator executed by the processing circuitry is configured to receive the dithered modulation value and modulate a power signal according to the dithered modulation value to drive the display backlight.

公开(公告)号：WO2019195004A1

公开(公告)日：2019-10-10

申请号：PCT/US2019/023796

申请日：2019-03-25

Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

Inventor： SARKAR, Abhijit ,  KALLIO, Samu Matias ,  ROPO, Kari Jussi

IPC: G01J3/51 ,  G01J1/04 ,  G01J3/46 ,  G01J3/50 ,  G01J3/52 ,  G01J1/42 ,  G01J1/44

Abstract: Sensor calibration methods and systems can for providing accurate color values are disclosed. In one example, a method includes obtaining color measurements that indicate an amount of ambient light, as well as clustering the color measurements, and storing cluster parameters for the clustered color measurements. The method can further include automatic calculation of, for each cluster, generic transformation parameters for conversion of a color measurement to a calibrated color value. In another example, a method can include exposing a light sensor to a calibration ambient lighting, calculating sensor correction parameters for the light sensor, and storing the calculated parameters. As an additional example, an electronic device is adapted to determine calibrated color values with machine readable media storing cluster parameters, sensor correction parameters, and generic transform parameters used by the electronic device to calculate calibrated color values for ambient light sensor measurements.