Positioning device and positioning method
AssigneeSeiko Epson Corporation
InventorYotaro DOI
Life of this patent
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Abstract
A positioning device includes a receiving unit that receives a first satellite signal in a first frequency band and a second satellite signal in a second frequency band transmitted from a first satellite, a positioning unit, a determination unit that compares a value of a predetermined parameter based on the first satellite signal with a value of the predetermined parameter based on the second satellite signal, and determines whether the first satellite is a genuine satellite, and a control unit that controls the positioning unit not to perform positioning using the first satellite signal and the second satellite signal when the determination unit determines that the first satellite is not a genuine satellite.
Claims10
A positioning device comprising:
- a receiving unit that receives a first satellite signal in a first frequency band and a second satellite signal in a second frequency band different from the first frequency band transmitted from a first satellite;
- a positioning unit;
- a determination unit that compares a value of a predetermined parameter contained in first satellite information of the first satellite based on the first satellite signal with a value of the predetermined parameter contained in second satellite information of the first satellite based on the second satellite signal, and determines whether the first satellite is a genuine satellite;
- and
- a control unit that controls the positioning unit not to perform positioning using the first satellite signal and the second satellite signal of the first satellite when the determination unit determines that the first satellite is not a genuine satellite.
A positioning device comprising:
- a receiving unit that receives a first satellite signal in a first frequency band and a second satellite signal in a second frequency band different from the first frequency band transmitted from a first satellite, and receives a third satellite signal in the first frequency band and a fourth satellite signal in the second frequency band transmitted from a second satellite;
- a positioning unit;
- a determination unit that compares a first difference as a difference between a value of a predetermined parameter contained in first satellite information of the first satellite based on the first satellite signal and a value of the predetermined parameter contained in second satellite information of the first satellite based on the second satellite signal with a second difference as a difference between a value of the predetermined parameter contained in first satellite information of the second satellite based on the third satellite signal and a value of the predetermined parameter contained in second satellite information of the second satellite based on the fourth satellite signal, and determines whether the first satellite or the second satellite is a genuine satellite;
- and
- a control unit that controls the positioning unit not to perform positioning using the first satellite signal and the second satellite signal of the first satellite when the determination unit determines that the first satellite is not a genuine satellite, and controls the positioning unit not to perform positioning using the first satellite signal and the second satellite signal of the second satellite when the determination unit determines that the second satellite is not a genuine satellite.
A positioning method comprising:
- a reception step of receiving a first satellite signal in a first frequency band and a second satellite signal in a second frequency band different from the first frequency band transmitted from a first satellite;
- a positioning step;
- a determination step of comparing a value of a predetermined parameter contained in first satellite information of the first satellite based on the first satellite signal with a value of the predetermined parameter contained in second satellite information of the first satellite based on the second satellite signal, and determining whether the first satellite is a genuine satellite;
- and
- a control step of controlling not to perform positioning using the first satellite signal and the second satellite signal of the first satellite in the positioning step when it is determined in the determination step that the first satellite is not a genuine satellite.
Dependencies are inferred from the claim text.