ELECTROENCEPHALOGRAPHIC HEADSET

• US 20130085363A1
• Filed: 09/14/2012
• Published: 04/04/2013
• Est. Priority Date: 10/03/2011
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Wada, Seiji, Yamazaki, Takeshi, Kimura, Natsuki, Wakita, Yoshihiro, Kashima, Koji, Tanaka, Tomiji, Nakamura, Mitsuhiro, Sakaguchi, Tatsumi, Soma, Haruhiko, Yamamoto, Takuro
• Granted Patent: US 8,774,895 B2
• Time in Patent Office: Days
• US Class Current: 600/383
• CPC Class Codes: A61B 5/291 for electroencephalography [EEG]
• CPC Class Codes: A61B 5/6803 Head-worn items, e.g. helmets, masks, headphones or goggles
• CPC Class Codes: A61B 5/6814 Head
• CPC Class Codes: A61B 5/6843 Monitoring or controlling sensor contact pressure

Abstract

An electroencephalographic headset includes: a supporter that includes expanding and contracting wires each having expansion and contraction properties and is to be attached to a head of a user by expansion and contraction of each of the expanding and contracting wires; and a plurality of electrodes that are provided to the supporter in defined placement.

Claims

1. An electroencephalographic headset, comprising:

a supporter that includes expanding and contracting wires each having expansion and contraction properties and is to be attached to a head of a user by expansion and contraction of each of the expanding and contracting wires; and

a plurality of electrodes that are provided to the supporter in defined placement.

2. The electroencephalographic headset according to claim 1, wherein

the supporter is constituted of

an annular frame to be placed around the head of the user, and

the expanding and contracting wires that are radially connected to each other and are connected to the frame.

3. The electroencephalographic headset according to claim 1, wherein

the supporter is constituted of

a head-fixing arm to be attached to the head of the user, and

the expanding and contracting wires that are concentrically connected to the head-fixing arm.

4. The electroencephalographic headset according to claim 1, wherein

the electrode is constituted of

a core that is formed of silver/silver chloride with each of the expanding and contracting wires being a center axis, and

an elastic member that is wound around the core in a cylindrical form and impregnated with an electrolytic solution.

5. The electroencephalographic headset according to claim 4, further comprising

a driving unit configured to rotate one of the electrodes when electrical contact between the electrode and a scalp of the user is loose, the electrical contact being detected based on contact resistance of the electrode.

6. The electroencephalographic headset according to claim 1, wherein

the defined placement is electrode placement according to an international 10-20 system, and

the expanding and contracting wires are connected corresponding to the electrode placement according to the international 10-20 system.