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US 2002/0171582 A1Published application
GPS receiver and GPS receiver system
AssigneeCommunications Res. Lab., Ind. Admin. Inst.
InventorMasato Takahashi
Life of this patent
Estimating the term…
Abstract
A GPS receiver includes an antenna unit, a GPS receiver unit, a result output unit, a data transmitting unit, a data receiving unit, a data processing unit for carrying out calculation on data containing a strength value of each received GPS satellite signal to limit or determine an azimuth of a measurement direction, and a use mode control switch.
Claims6
A GPS receiver comprising:
- a patch antenna unit for receiving signals transmitted from a GPS satellite;
- a GPS receiver unit for calculating positioning information from GPS satellite signals received by the antenna unit;
- a data transmitting unit for transmitting to another OPS receiver GPS satellite signals received by the antenna unit;
- a data processing unit for carrying out calculation on data containing strength values of received GPS satellite signals to limit or determine an azimuth of a measurement direction;
- a data receiving unit for receiving signals transmitted by a data transmitting unit of another GPS receiver and forwarding them to the data processing unit;
- and
- a control switch fr controlling use mode of the GPS receiver unit, data transmitting unit, data receiving unit, data processing unit and result output unit.
4 more elements
A GPS receiver system comprising:
- a first GPS receiver equipped with a patch antenna unit, a GPS receiver unit, a data receiving unit, a data processing unit for carrying out calculation on data containing strength values of received GPS satellite signals, and a result output unit;
- a second GPS receiver equipped with a patch antenna unit, a GPS receiver unit and a data transmitting unit;
- the data transmitting unit of the second GPS receiver sending GPS satellite data received by the second GPS receiver through the data receiving unit of the first GPS receiver and to the data processing unit of the first GPS receiver, and the data processing unit of the first GPS receiver carrying out calculation on data containing strength values of the received GPS satellite signals of both the first and second GPS receivers to limit or determine an azimuth of a measurement direction.
Dependencies are inferred from the claim text.