Marvell International Limited

Marvellworld Trade Ltd.

Shanghai Microport Ep Medtech Co., Ltd.

Jinfeng Liu

Zhike Jia

BoChih Liu

Jing Yu

Jian Mg Cheng

Yiyong Sun

Zhicui Lu

Mobo Qiu

Juhong Xing

Hongquan Liu

Qingchun Zhang

Liuping Shen

Degui Pang

Aspects of the disclosure provide a system for detecting a movement that includes a moving state detector, a profile-based movement state detector, and a refined movement state detector. The moving state detector is configured to generate a moving state based on a detected speed. The profile-based movement state detector is configured to determine an estimated movement state based on the moving state and detected accelerations. The refined movement state detector is configured to generate, in response to the estimated movement state corresponding to a predetermined triggering movement state, a refined movement state based on a detected angular velocity.

Method and apparatus for efficiently determining positional states of a vehicle in a vehicle navigation system

Systems and methods are provided for detecting a mobility mode of a mobile device. The method, in response to receiving an observation decision, comprises finding (e.g., recursively) the most probable mobility mode state of the wireless mobile device using a dynamic programming algorithm based on a Hidden Markov Model that comprises: calculating the probability for the observation by the knowledge of the observation and probability of the previous state using the transition probability and multiplying by the emission probability of observation for the state, obtaining the maximum probability for the detected mobility mode states, determining a mobility mode state with the maximum probability, and storing the mobility mode state data of the wireless mobile device in a given FIFO queue of the one or more FIFO queues. The method future comprises controlling the output of the position data by acquiring the satellite navigation data on an interval basis.

Apparatus and method for mobility mode state detection

Aspects of the disclosure include a method of prioritizing generation of predicted ephemeris data. The method includes receiving, by a device through a data network, first ephemeris seed data of a subset of a plurality of satellites, identifying a first satellite and a second satellite of the plurality of satellites, the first satellite being potentially detectable by the device at an estimated position at a given time, and the second satellite being potentially undetectable by the device at the estimated position at the given time, and prioritizing generation of first predicted ephemeris data that represent a first orbit of the first satellite before generation of second predicted ephemeris data that represent a second orbit of the second satellite. The generation of the first predicted ephemeris is based on the first ephemeris seed data.

System, device, and method of prioritizing generation of predicted ephemeris data

Aspects of the disclosure provide an apparatus that includes a navigation signal receiver and a processing circuit. The navigation signal receiver is to receive, from a plurality of satellites, first ephemeris data. The first ephemeris data is effective for a first time duration. The processing circuit is to predict, based on the first ephemeris data, second ephemeris data. The second ephemeris data is effective for a second time duration that is extended beyond the first time duration. The second ephemeris data is used by the navigation signal receiver to acquire satellite signals for positioning the apparatus during the second time duration.

Autonomous in-device GNSS augmentation system

Growing community of inventors

Shanghai, China

Jinfeng Liu