U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Biofeedback device for recognition of ଱ wave component and muscle potential component

Patent 4228807 Issued on October 21, 1980. Estimated Expiration Date: Icon_subject December 11, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3821949

Inventors

Assignee

Application

No. 05/968263 filed on 12/11/1978

US Classes:

600/545With feedback of signal to patient

Examiners

Primary: Kamm, William E.

Attorney, Agent or Firm

International Classes

A61B 5/0488 (20060101)
A61B 5/0476 (20060101)
A61B 5/0484 (20060101)
A61B 5/0482 (20060101)
A61B 7/00 (20060101)

Foreign Application Priority Data

1976-05-27 JP

Abstract

Disclosed herein is a biofeedback device which separately extracts the ଱ wave component and the muscle component included in the brain wave and, therefore, permits the user thereof through auditory perception of associated audio frequency sounds to recognize accurately the appearance in the brain wave of the ଱ wave component or muscle component on the basis of the principle that exclusive perception of the sound associated with the ଱ wave component indicates relaxation of the subject's mental state, exclusive perception of the sounds associated with the muscle component indicates tension of the subject's mental state or cephalic state and simultaneous perception of the sounds associated with both components indicates occurrence of a phenomenon having nothing to do with the responses for feedback training.

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