Inventor

JIA ZHIKE

US62 patents

⚠️ This page may combine multiple inventors who share the name “JIA ZHIKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

JIA ZHIKE

MARVELL INT LTD

Method and apparatus for managing multiple sensors in a navigation system

System and method for reducing energy usage in a mobile communications device

Device-to-device radio frequency proximity determination

Method and apparatus for map matching

Method and apparatus for geo-fence detection

Method and apparatus for filtering access points for WiFi positioning

Method and apparatus for multipath detection

Apparatus and method for transforming and cleaning position data for a database-based positioning system

Method and system for position updating using cached radio signal range

Ultra low power global navigation satellite system (GNSS) receiver operation

Apparatus and method for mobility mode state detection

Low-power device positioning method using position updates calculated by low power processor

Method and apparatus for demodulating GNSS navigation data bits under poor clock condition

System and method for improving GNSS receiver tracking loop performance under multipath signal interference

Method and apparatus for determining frame timing

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

Method and apparatus for positioning

Method and apparatus for detecting poor Doppler measurement results in global navigation satellite system navigation

MARVELL WORLD TRADE LTD

Method, system and device for position determination with predicted ephemeris

Wireless LAN device positioning

Method and system for positioning wireless device

Positioning database management applied to server-based positioning system

Positioning database management applied to server-based positioning system

Method and system for positioning wireless device

Method and apparatus for tracking, in real-time, a position of a mobile wireless communication device

Method and apparatus for adaptive positioning

GPS and WLAN hybrid position determination

Positioning data distribution applied to server-based positioning system

Server-based positioning system architecture

Positioning database management applied to server-based positioning system

Server-based positioning system architecture

Wireless LAN device positioning

Method and apparatus for determining position in a global navigation satellite system

SIRF TECHNOLOGY HOLDINGS INC

Navigational signal tracking in low power mode

Efficient and flexible numerical controlled oscillators for navigational receivers

False reacquisition mitigation in high sensitivity navigational satellite signal receivers

Methods and systems for acquisition, reacquisiton and tracking of weak navigational signals

Bit synchronization for weak navigational satellite signals

Systems and methods for signal acquistion in navigational satellite signal receivers

Method of mixed data assisted and non data assisted navigation signal acquisition, tracking and reacquisition

High sensitivity global navigation satellite system (GNSS) receiver platform having DMA controller for transferring between internal and external memory

Fast fourier transform based phase locked loop for navigational receivers

Ephemeris download from weak signals

SIRF TECH INC

Methods and systems for temperature related frequency drift compensation

Timing calibration for fast signal reacquisition in navigational receivers

Data demodulation from weak navigational satellite signals

WANG CHI-SHIN

Correlator sum method for spread spectrum signal receivers

Ephemeris download from weak signals

CENTRALITY COMMUNICATIONS INC

Continuous integration based satellite navigational signal acquisition

JIA ZHIKE

Ultra low power global navigation satellite system (GNSS) receiver operation