Mobile personal navigator

• US 6,127,945 A
• Filed: 10/18/1995
• Issued: 10/03/2000
• Est. Priority Date: 10/18/1995
• Status: Expired due to Term

• Current Assignee: Trimble Navigation Limited (Trimble Inc.)
• Original Assignee: Trimble Navigation Limited (Trimble Inc.)
• Inventors: Mura-Smith, Kiyoko
• Primary Examiner(s): SWARTHOUT, BRENT
• Application Number:
  US08/544,553
• Time in Patent Office: 1,812 Days
• Field of Search: 340/988, 340/989, 340/990, 340/995, 340/539, 340/573, 342/457, 364/449.2, 364/449.3, 364/449.5, 364/449.7, 701/207, 701/208, 701/209, 701/211, 701/213, 701/215, 701/300
• US Class Current: 340/988
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G01C 21/3688 Systems comprising multiple parts or multiple output devices (not client-server), e.g. detachable faceplates, key fobs or multiple output screens
• CPC Class Codes: G01S 5/02 using radio waves using satellite radio beacon systems for determining position G01S19/00
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04L 67/75 Indicating network or usage conditions on the user display
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A personal navigation device and method for providing location information. In one embodiment, the present invention is comprised of a portable hand-held unit. The portable unit contains a communication system adapted to receive data at and transmit data from the portable unit. The portable unit also contains a position determining system which determines the geographic location of the portable unit. The position determining system is connected to the communication system. A graphic display located on the portable unit is also connected to the position determining system. The graphic display displays a representation of the current location of the portable unit with respect to a previously selected location. In one embodiment, the representation of the current location also includes a representation of the speed and the heading of the portable unit with respect to the previously selected location.

Claims

1. A personal navigation device comprising:

a portable navigation unit adapted to be hand-held, said portable navigation unit including;

a communication device adapted to receive data and transmit data therefrom,

a position determining system determining the geographic location of said portable navigation unit, and

a graphic display coupled to said position determining system, said graphic display adapted to display only a representation of the current location of said portable navigation unit with respect to a previously selected location such that said portable navigation unit provides a cursor, a vector extending from said cursor towards the direction in which said personal navigation device is moving, wherein the length of said vector corresponds to the speed of said portable navigation unit such that the faster said portable navigation unit moves the greater the length of said vector, said graphic display further adapted to display icons representing selected locations and cross track error indicia, said graphics display not providing extraneous information including latitude, longitude and complex map information of said geographic location of said portable navigation unit on said display.