System for optically performing position detection and data communication
AssigneePresident of Nagoya University
InventorsTohru Yagi, Yoshiaki Kuno, Shin Suzuki, Yoshiki Uchikawa
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Abstract
In a system for optically performing position detection and data communication, a transmitting apparatus has first and second light-emitting elements for position indication and data transmission. An image sensing element in a receiving apparatus senses the light-emitting elements. Position is detected from the sensed image of the first light-emitting elements using triangulation, and data communication is performed by blinking the second light-emitting element. This system is used in a hospital where the use of radio waves is restricted or outerspace where the system is exposed to strong electromagnetic waves.
Claims20
A transmitting apparatus comprising:
- a support member;
- a position indicating section having a plurality of first light-emitting elements supported by said support member, said first light-emitting elements being turned on to indicate a position of said transmitting apparatus;
- and
- a data transmitting section having a second light-emitting element supported by said support member, said second light-emitting element blinking in correspondence with data to transmit the data.
A system for performing position detection and data communication, comprising:
- (a) a transmitting apparatus,
- said transmitting apparatus comprising
- a support member,
- a position indicating section having a plurality of first light-emitting elements supported by said support member, said first light-emitting elements being turned on to indicate a position of said transmitting apparatus;
- and
- a data transmitting section having a second light-emitting element supported by said support member, said second light-emitting element blinking in correspondence with data to transmit the data, and
- (b) a receiving apparatus,
- said receiving apparatus comprising
- an image sensing element for sensing said first and second light-emitting elements;
- an image processing section for separately extracting image components of said first and second light-emitting elements from a sensed image obtained by said image sensing element;
- a position detecting section for detecting the position of said transmitting apparatus on the basis of the image components of said first light-emitting elements extracted by said image processing section;
- and
- a data detecting section for detecting the data on the basis of the image component of said second light-emitting element extracted by said image processing section.
Dependencies are inferred from the claim text.