| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 701494000 | Using non-inertial dead-reckoning apparatus | 9 |
| 20140100775 | UNDERWATER NAVIGATION SYSTEM - An underwater navigation system for indicating a return direction from an underwater return position to a starting position includes a processor and a power source, a three-dimensional compass, a timer, a water speed sensor and a display interfacing with the processor. The processor is adapted to determine a direction of the starting position relative to the underwater return position based on data received from the three-dimensional compass, the timer and the water speed sensor. | 04-10-2014 |
| 20140121960 | APPARATUS AND METHOD FOR ESTIMATING LOCATION OF TERMINAL USING DEAD RECKONING - An apparatus for estimating the location of a terminal obtains definite location information of the terminal, estimates a dead reckoning location of the terminal using finally obtaining definite location information when definite location information of the terminal is not obtained for a set time, and combines positioning information of an adjacent terminal, definite location information of the terminal, and dead reckoning location information of the terminal with each other when reliability of dead reckoning location information of the adjacent terminal is higher than reliability of dead reckoning of the terminal to estimate combinatorial location information of the terminal. | 05-01-2014 |
| 20140180582 | APPARATUS, METHOD AND TECHNIQUES FOR WEARABLE NAVIGATION DEVICE - An apparatus, method and other techniques for a wearable navigation device are described. For example, an apparatus may comprise a wristband comprising a plurality of haptic feedback devices arranged around a circumference of the wristband and logic to wirelessly receive navigation information from a computing device and to output the navigation information using one or more of the plurality of haptic feedback devices, the output comprising a mechanical representation of the navigation information. Other embodiments are described and claimed. | 06-26-2014 |
| 20140297177 | NAVIGATION DEVICE HAVING DEAD RECKONING NAVIGATION FUNCTIONALITY AND METHOD THEREOF - Embodiments of the present invention provide a method of determining a heading of travel of a navigation device, comprising determining a reference heading for a roadway system and determining a current heading of navigation device travel, wherein the current heading is determined as an integer multiple of a predetermined lock angle in combination with the reference heading. | 10-02-2014 |
| 20150354965 | Irregular Feature Mapping - Disclosed herein are methods and systems for mapping irregular features. In an embodiment, a computer-implemented method may include obtaining tracking data that has dead reckoning tracking data for a tracked subject along a path and performing shape correction on the tracking data to provide a first estimate of the path. | 12-10-2015 |
| 20160076908 | METHOD AND SERVER FOR DELIVERING INFORMATION TO USER TERMINAL - A method for delivering information to a user terminal is provided. The method includes obtaining user data. The user data may include a plurality of user activity locations and corresponding user activity time. The method may further include identifying a first position and a second position based on the user activity locations and the user activity time, selecting a travel path based on the first position and the second position, determining a user activity area based on the selected travel path, and sending content to the user terminal based on the user activity area. | 03-17-2016 |
| 701495000 | Having accuracy improvement of position or location | 3 |
| 20130297204 | TECHNIQUE FOR CALIBRATING DEAD RECKONING POSITIONING DATA - A technique for calibrating sensor data used for dead reckoning positioning comprises the steps of simultaneously recording sensor data of at least one dead reckoning positioning sensor and position data of a position sensor during travel, comparing a first travel path derived from the position data with a second travel path derived from the sensor data, and calibrating the sensor data based on the comparison. | 11-07-2013 |
| 20140121961 | NON-ECHO ULTRASONIC DOPPLER FOR CORRECTED INERTIAL NAVIGATION - A method and device for non-echo ultrasonic Doppler used for corrected inertial navigation includes providing at least one ultrasonic emitter within an environment, each emitter configured for transmitting an ultrasonic tone of a predefined frequency. An initial location of the mobile device is established within the environment. Dead reckoning procedures are initiated using sensors within the mobile device. The device receives at least one ultrasonic tone from an emitter, and converts the at least one ultrasonic tone into a digital waveform. The device determines at least one peak frequency of the digital waveform, and subtracts the at least one peak frequency from each predefined frequency to determine at least one Doppler shift, which is used for correcting the dead reckoning of the mobile device. | 05-01-2014 |
| 20180023965 | ANOMALY ESTIMATION APPARATUS AND DISPLAY APPARATUS | 01-25-2018 |
