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Home Audio Signal Processing Electric-artificial-larynx

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 Electric artificial larynx

Details
Inventors: Ifukube, Tohru; Koikeda, Akira; Sugai, Yasunori; Takabatake, Shinichi; Yamaguchi, Yoshinori;
Assignee: Densi, Inc. (Sapporo, JP)
Primary Examiner: Mei; Xu
Assistant Examiner: Pendleton; Brian
Attorney, Agent or Firm: Chin, Esq.; Stephen M. Reed Smith LLP

This electric artificial larynx 1 comprises a sound source generating unit 3 which is held by interposition means 2 attached directly or indirectly to the human body 10 and can be always placed near the cervical region 10a and a portable controller 4 which is separated from the sound source generating unit 3 and operates the sound source generating unit 3. The controller 4 preferably comprises a control signal generating unit which includes a sensor for detecting ID biological information or a switch 12 for supplying a signal and a control unit 16 which drives and controls the sound source generating unit 3 in response to a signal from the control signal generating unit and has a power source unit 15 for supplying power to the sound source generating unit 3. The sound source generating unit 3 may be caused to output a sound using sound source data based on the voice data of an operator before an operation for removing the larynx, or storage means for storing sound source data for singing a song may be provided in the controller 4 detachably.

DETAILED DESCRIPTION It is an object of the present invention which has been made to solve the above problem to provide an electric artificial larynx which improves operation efficiency by eliminating the trouble of bringing a sound source generating unit up to the cervical region each time an operator vocalizes.
It is another object of the present invention to provide an electric artificial larynx which enables an operator to use both hands when vocalizing.
It is still another object of the present invention to provide an electric artificial larynx which can reduce the size of a sound source generating unit and does not provide an operator with a feeling of physical disorder when only the sound source generating unit is attached near the cervical region.
According to a first aspect of the present invention, there is provided an electric artificial larynx which comprises a sound source generating unit which is held by interposition means attached directly or indirectly to the human body and can be always placed near the cervical region and a portable controller which is separated from the sound source generating unit and can operate the sound source generating unit.
Therefore, only the sound source generating unit can be placed near the cervical region and the controller can be stored in clothes or the like.
As a result, it is not necessary to bring the sound source generating unit up to the cervical region by hand each time an operator vocalizes, thereby greatly improving operation efficiency.
In addition, the controller is devised to enable the operator to use both hands freely when vocalizing.
The interposition means is a band wound round the neck, an accessory covering the vocal cords, a member projecting toward the cervical region from a device attached to the arm or shoulder, or the like.
According to a second aspect of the present invention, there is provided an electric artificial larynx wherein the above controller comprises a control signal generating unit which includes a sensor for detecting biological information or a switch for supplying a signal and a control unit which drives and controls the sound source generating unit in response to a signal from the control signal generating unit and has a power source unit for supplying power to the sound source generating unit


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