Satellite positioning apparatus for mobile units and a navigation system
AssigneeClarion Co., Ltd.
InventorMasaki Suyama
Life of this patent
Estimating the term…
Abstract
Satellite positioning apparatus for mobile units 10 comprises a positioning unit 11 for calculating the current position of a mobile unit based on position information contained in signals from satellites received via a GPS antenna 17, state detecting units 12, 14 for outputting state detection signals corresponding to the traveling state of the mobile unit, and a calculating unit 11 for calculating the reckoned position of the mobile unit based on the state detection signal output from the state detecting unit and current position reckoning signal.
Claims20
A satellite positioning apparatus provided on a mobile unit for reckoning a current position of said mobile unit, said apparatus comprising:
- a positioning section for reckoning a current position of said mobile unit based on position information contained in signals from satellites, and outputting a current position reckoning signal,
- a state detecting section for outputting a state detection signal corresponding to a traveling state of said mobile unit, and
- a calculating section for calculating a reckoned position of said mobile unit based on said state detection signal and said current position reckoning signal,
- wherein said apparatus is removably connected to a computing system via a single data interface.
A satellite positioning apparatus provided on a mobile unit for reckoning a current position of said mobile unit, said apparatus comprising:
- a positioning section for reckoning a current position of said mobile unit based on position information contained in signals from satellites and outputting a positioning reckoning signal;
- a state detecting section for outputting a state detection signal corresponding to a traveling state of said mobile unit;
- a calculating section for calculating a reckoned position of said mobile unit based on said state detection signal and said current position reckoning signal;
- and
- a signal converting section for converting an output signal output from said calculating section representing the reckoned position of said mobile unit to a predetermined transmission signal.
A navigation system comprising a computing system which allows position display of a mobile unit and satellite positioning apparatus for mobile units using satellites for reckoning the current position of the mobile unit, connected to the computing system,
- said satellite positioning apparatus for mobile units comprising:
- positioning section for reckoning the current position of the mobile unit based on the position information contained in signals from said satellites,
- state detecting section for outputting a state detection signal corresponding to the traveling state of said mobile unit,
- calculating section for calculating the reckoned position of said mobile unit based on the state detection signal output from the state detecting section and the current position reckoning signal, and
- signal converting section for converting an output signal from the calculating section to a predetermined transmission signal, wherein
- said computing system comprises an interface for receiving said predetermined transmission signal.
A satellite positioning apparatus provided on a mobile unit for reckoning a current position of said mobile unit, said apparatus comprising:
- a positioning section for reckoning a current position of said mobile unit based on position information contained in signals from satellites, and outputting a current position reckoning signal,
- a state detecting section for outputting a state detection signal corresponding to a traveling state of said mobile unit, and
- a calculating section for calculating a reckoned position of said mobile unit based on said state detection signal and said current position reckoning signal,
- wherein said apparatus is removably connected to a computing system, and
- wherein said apparatus employs a dead reckoning protocol to reckon a travel distance and heading of said mobile unit.
A satellite positioning apparatus provided on a mobile unit for reckoning a current position of said mobile unit, said apparatus comprising:
- a positioning section for reckoning a current position of said mobile unit based on position information contained in signals from satellites, and outputting a current position reckoning signal,
- a state detecting section for outputting a state detection signal corresponding to a traveling state of said mobile unit, and
- a calculating section for calculating a reckoned position of said mobile unit based on said state detection signal and said current position reckoning signal,
- wherein said apparatus is removably connected to a computing system, and
- wherein said apparatus and external units are connected to said computing system at a single data interface.
A satellite positioning apparatus provided on a mobile unit for reckoning a current position of said mobile unit, said apparatus comprising:
- a positioning section for reckoning a current position of said mobile unit based on position information contained in signals from satellites, and outputting a current position reckoning signal,
- a state detecting section for outputting a state detection signal corresponding to a traveling state of said mobile unit, and
- a calculating section for calculating a reckoned position of said mobile unit based on said state detection signal and said current position reckoning signal,
- wherein said apparatus is removably connected to a computing system, and
- wherein a signal from said calculating section depends upon a number of satellites acquired by said apparatus, and a calibration status of an output of said state detecting section.
Dependencies are inferred from the claim text.