Electronic pen, display system, and method for controlling electronic pen
AssigneeSeiko Epson Corporation
InventorAkihiko Tamura
Life of this patent
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Abstract
An electronic pen includes: a communication unit which communicates with a communication target apparatus; a state detection unit which detects a state of the electronic pen decided by a relation with the communication target apparatus; and a control unit which changes an operation of the communication unit according to the state detected by the state detection unit.
Claims18
An electronic pen comprising:
- a signal transmitter which communicates with a communication target apparatus;
- and
- a processor configured to functions as:
- a state detection unit which detects a state of the electronic pen decided by a relation with the communication target apparatus;
- a control unit which changes an operation of the signal transmitter according to the state detected by the state detection unit;
- and
- an operation detection unit which detects an operation on the electronic pen,
- wherein the control unit decides the operation of the signal transmitter, based on a combination of the operation detected by the operation detection unit and the state detected by the state detection unit.
A display system comprising a display device which displays an image on a display surface, and an electronic pen which points at the display surface,
- the electronic pen comprising:
- a signal transmitter which communicates with the display device;
- and
- a processor configured to functions as:
- a state detection unit which detects a state of the electronic pen decided by a relation with the display device;
- a control unit which changes an operation of the signal transmitter according to the state detected by the state detection unit;
- and
- an operation detection unit which detects an operation on the electronic pen,
- wherein the control unit decides the operation of the signal transmitter, based on a combination of the operation detected by the operation detection unit and the state detected by the state detection unit.
A method for controlling an electronic pen comprising a signal transmitter which communicates with a communication target apparatus, the method comprising:
- detecting a state of the electronic pen decided by a relation with the communication target apparatus;
- and
- changing an operation of the signal transmitter according to the detected state, wherein
- whether or not a period during which the signal transmitter does not receive the synchronization signal is equal to or longer than a predetermined time is detected as the reception state in the signal transmitter.
Dependencies are inferred from the claim text.