Three-dimensional position indicator and three-dimensional position detection system

A position detection system comprising:

• a position indicator;
• a position detecting sensor;
• and
• a spatial position detecting device,
• wherein the position indicator includes:
• a casing,
• a position indicating part that is disposed at one end of the casing, wherein the position indicating part, in operation, indicates a position on an input surface of the position detecting sensor,
• a tracker which, in operation, causes the spatial position detecting device to detect a position in the three-dimensional space, a position of the tracker and a position of the position indicating part being in a specific positional relation, and
• a communication circuit which, in operation, communicates with the position detecting sensor and causes the position detecting sensor to detect the position on the input surface of the position detecting sensor indicated by the position indicating part, and
• wherein the spatial position detecting device includes a circuit which, in operation, calculates a position of the position indicating part in the three-dimensional space, based on the position in the three-dimensional space detected by interaction of the spatial position detecting device with the tracker and the specific positional relation.

A position detection system comprising:

• a spatial position detecting device;
• and
• a position indicator having a tracker which, in operation, interacts with the spatial position detecting device and causes the spatial position detecting device to detect a position in a three-dimensional space,
• wherein the spatial position detecting device includes a circuit which, in operation, detects a position in a specific positional relation with the position in the three-dimensional space detected by interaction of the spatial position detecting device with the tracker, as a position indicated by the position indicator in the three-dimensional space.