US 10852846

An analysis of U.S. Patent 10,852,846 reveals the following details:

Title: Electronic device for use in motion detection and method for obtaining resultant deviation thereof

Assignee: CM HK Ltd.

Inventors: Shun-Nan Liou, Zhou Ye, Chin-Lung Li

Filing Date: June 2, 2017

Issue Date: December 1, 2020

Abstract:
An electronic device utilizing a nine-axis motion sensor module, capable of accurately outputting a resultant deviation including deviation angles in a 3D reference frame is provided. The present invention provides a novel comparison and compensation to accurately obtain a resultant deviation including deviation angles of the electronic device under the presence of external and/or internal interferences including the ones caused by undesirable electromagnetic fields and the ones associated with undesirable external forces and axial accelerations. The output of the nine-axis motion sensor module of the present invention including a rotation sensor, an accelerometer and a magnetometer can be advantageously obtained and compensated with a comparison comparing different states of the motion sensor module such that an updated state associated with the output and the resultant deviation angles of the nine-axis motion sensor module are preferably obtained in an absolute manner with the undesirable external interferences being effectively excluded.

Plain-Language Overview of Independent Claims:

U.S. Patent 10,852,846 contains three independent claims:

• Claim 1: This claim outlines a method for an electronic device with a nine-axis motion sensor (combining an accelerometer, gyroscope, and magnetometer) to more accurately determine its orientation in 3D space. The method involves continuously updating the device's orientation by comparing the current sensor readings with a predicted orientation. A key feature is the system's ability to detect and disregard unreliable magnetic field data, which can be distorted by nearby electronics, thus preventing errors in the final calculated orientation (the "resultant deviation"). This allows for more stable and accurate motion tracking, for example, in a 3D pointing device.

• Claim 10: This claim describes the physical electronic device itself, configured to perform the method outlined in Claim 1. It specifies a device containing a nine-axis motion sensor and a processor. The processor is programmed to carry out the steps of obtaining previous, current, and measured states of motion, comparing them to generate an updated and more accurate state, and thereby determining the device's precise orientation in space while filtering out erroneous signals from the magnetometer.

• Claim 15: This claim focuses on a specific aspect of the method for mapping the calculated 3D orientation of the pointing device onto a 2D display screen. It describes a method that takes the calculated deviation angles (yaw, pitch, and roll) and translates them into a cursor movement on a screen of a predetermined size. This involves using a predefined "sensitivity" setting to control how much the cursor moves in response to the device's movements and ensuring the cursor's position is accurately represented within the screen's boundaries.

CAFC Docket Information:

As of May 14, 2026, a search of the dockets for the U.S. Court of Appeals for the Federal Circuit (CAFC) for the year 2026 did not yield any specific results for U.S. Patent No. 10,852,846. However, it is noted that this patent has been the subject of district court litigation, specifically in a case involving Samsung Electronics Co., Ltd. and the assignee, CM HK Ltd.. Such district court cases can sometimes lead to appeals filed with the CAFC at a later date. Therefore, while no active 2026 CAFC case has been identified, the possibility of future appellate proceedings cannot be entirely ruled out.