Low interference system and method for synchronization, identification and tracking of visual and interactive systems

A visual system comprising:

• an interaction object including:
• a tip switch;
• and
• a light source that emits light in a flashing sequence that comprises a plurality of sub-sequences, each sub-sequence having phase 1, phase 2, and phase 3, the flashing sequence signaling an identification (ID) of the interaction object;
• and
• a visual apparatus configured to:
• detect a position of the light emitted from the light source;
• and
• analyze the flashing sequence to identify a tip switch state and the ID,
• wherein a flashing state of the light source in phase 3 is equal to a flashing state of the light source in phase 1, and a flashing state of the light source in phase 2 varies in accordance with the tip switch state, phase 2 being between phase 1 and phase 3 in each sub-sequence.

A method of controlling a visual system that comprises an interaction object and a visual apparatus, the interaction object including a tip switch and a light source, and the visual apparatus being configured to detect a position of light emitted from the light source, the method comprising:

• emitting, by the interaction object, the light from the light source in a flashing sequence that signals an identification (ID) of the interaction object, the flashing sequence comprising a plurality of sub-sequences, each sub-sequence having phase 1, phase 2, and phase 3;
• and
• analyzing, by the visual apparatus, the flashing sequence to identify a tip switch state and the ID,
• wherein a flashing state of the light source in phase 3 is equal to a flashing state of the light source in phase 1, and a flashing state of the light source in phase 2 varies in accordance with the tip switch state, phase 2 being between phase 1 and phase 3 in each sub-sequence.