The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2002
Filed:
Nov. 17, 1999
Erjian Ma, Auburn, AL (US);
Other;
Abstract
This is a method and apparatus for giving an accurate vehicle location and route from one location to a desired destination. This is done by catching signals from a fixed local information source through a receiver system placed in the vehicles. The present invention is called LPS (Local Position System) navigation system because it is based on a local information system instead of getting information from a satellite or city beacon. This system has two main units. The first of these units is the Address Code, this is an emitter or carrier which is placed on roads all over the nation. This unit can provide digitized and standardized road information. The second of these units is the Receiver, which can receive signals on the road and search them in a database. This database is set in the vehicle and tells the accurate location of the vehicle. It then can give precise directions to a location based on user's input. Therefore, a system user will know where he is and exactly how to get where he wants to go. The system user can transmit the received signal to his headquarters or to people with the same equipment.