Positioning system and positioning method
First Claim
Patent Images
1. A positioning system, comprising:
- a golf ball includinga battery; and
a transmitter configured to operate with electric power supplied from the battery and transmit a radio signal to outside of the golf ball; and
a mobile terminal includinga receiver configured to receive the radio signal from the golf ball; and
a processor configured to measure a position of the mobile terminal, and to measure a position of the golf ball based on strength of the radio signal received by the receiver at two or more points at which the measured position of the mobile terminal differs,wherein the processor of the mobile terminal is configured to determine a distance from the mobile terminal to the golf ball based on the strength of the radio signal received by the receiver, and to measure the position of the golf ball based on the distance from the mobile terminal to the golf ball determined at each of the two or more points and the position of the mobile terminal measured at each of the two or more points, andwherein the processor of the mobile terminal is configured to measure the position of the golf ball based on at least one intersection point of a first circle and a second circle, the first circle being centered at the position of the mobile terminal measured at a first point included in the two or more points, and having a radius that is the distance from the mobile terminal to the golf ball determined at the first point, the second circle being centered at the position of the mobile terminal measured at a second point included in the two or more points and different from the first point, and having a radius that is the distance from the mobile terminal to the golf ball determined at the second point.
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Accused Products
Abstract
A positioning system includes a golf ball and a mobile terminal. The golf ball includes a battery and a transmitter configured to operate with electric power supplied from the battery and transmit a radio signal to outside of the golf ball. The mobile terminal includes a receiver configured to receive the radio signal from the golf ball and a processor configured to measure the position of the mobile terminal, and to measure the position of the golf ball based on the strength of the radio signal received by the receiver at two or more points at which the measured position of the mobile terminal differs.
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Citations
8 Claims
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1. A positioning system, comprising:
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a golf ball including a battery; and a transmitter configured to operate with electric power supplied from the battery and transmit a radio signal to outside of the golf ball; and a mobile terminal including a receiver configured to receive the radio signal from the golf ball; and a processor configured to measure a position of the mobile terminal, and to measure a position of the golf ball based on strength of the radio signal received by the receiver at two or more points at which the measured position of the mobile terminal differs, wherein the processor of the mobile terminal is configured to determine a distance from the mobile terminal to the golf ball based on the strength of the radio signal received by the receiver, and to measure the position of the golf ball based on the distance from the mobile terminal to the golf ball determined at each of the two or more points and the position of the mobile terminal measured at each of the two or more points, and wherein the processor of the mobile terminal is configured to measure the position of the golf ball based on at least one intersection point of a first circle and a second circle, the first circle being centered at the position of the mobile terminal measured at a first point included in the two or more points, and having a radius that is the distance from the mobile terminal to the golf ball determined at the first point, the second circle being centered at the position of the mobile terminal measured at a second point included in the two or more points and different from the first point, and having a radius that is the distance from the mobile terminal to the golf ball determined at the second point. - View Dependent Claims (2, 3, 4, 5, 8)
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6. A positioning method executed in a mobile terminal including a receiver configured to receive a radio signal from a golf ball and a processor, the golf ball including a battery and a transmitter configured to operate with electric power supplied from the battery and transmit the radio signal to outside of the golf ball, the positioning method comprising:
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measuring, by the processor of the mobile terminal, a position of the mobile terminal; measuring, by the processor of the mobile terminal, a position of the golf ball based on strength of the radio signal received by the receiver at two or more points at which the measured position of the mobile terminal differs, determining, by the processor of the mobile terminal, a distance from the mobile terminal to the golf ball based on the strength of the radio signal received by the receiver, and measuring the position of the golf ball based on the distance from the mobile terminal to the golf ball determined at each of the two or more points and the position of the mobile terminal measured at each of the two or more points, and measuring the position of the golf ball based on at least one intersection point of a first circle and a second circle, the first circle being centered at the position of the mobile terminal measured at a first point included in the two or more points, and having a radius that is the distance from the mobile terminal to the golf ball determined at the first point, the second circle being centered at the position of the mobile terminal measured at a second point included in the two or more points and different from the first point, and having a radius that is the distance from the mobile terminal to the golf ball determined at the second point. - View Dependent Claims (7)
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Specification