Method and apparatus for location finding in a communication system
September 3, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesNulling system for constraining pulse jammer duty factors Spread spectrum coherent processor Passive high accuracy geolocation system and method CDMA communications and geolocation system and method Method and apparatus for location finding in a CDMA system Spatial division multiple access wireless communication systems Multi-path resistant frequency-hopped spread spectrum mobile location system Patent #: 5583517 InventorsAssigneeApplicationNo. 706751 filed on 09/03/1996US Classes:342/457Land vehicle location (e.g., bus, police carExaminersPrimary: Blum, Theodore M.Attorney, Agent or FirmInternational ClassG01S 003/02AbstractA method for determining a subscriber unit location in a communication system is provided. The method includes the steps of receiving a signal from the subscriber unit at a first base station, determining a first receive time of the signal based on a sequence of spreading symbols at the first base station, determining a first angle of arrival of the signal at the first base station, and determining the location of the subscriber unit from the first receive time, the first angle of arrival, and further predetermined information about the first base station. The signal is formed via modulation by the sequence of spreading symbols.Other References
Field of SearchLand vehicle location (e.g., bus, police car | |
