Abstract: A bone conduction hearing-aid system includes an intracorporeal unit that is embedded under a scalp and that includes an intracorporeal vibration generator configured to generate vibration by receiving a magnetic field frequency, and an extracorporeal unit that is disposed extracorporeally, that is configured to generate the magnetic field frequency and to apply the magnetic field frequency to the intracorporeal unit, and that is configured to generate vibration by an extracorporeal vibration generator. The vibration generated by the intracorporeal unit and the vibration generated by the extracorporeal unit vibrate a skull.

Abstract: A bone conduction hearing-aid unit embedded under a scalp. The bone conduction hearing-aid unit includes a vibration generator configured to generate vibration, and an anchor. A magnetic field frequency is applied to the vibration generator from the outside of the scalp to generate vibration. The vibration is transmitted to a skull via the anchor.

Abstract: A bone conduction hearing-aid unit that is entirely embedded under a scalp. The bone conduction hearing-aid unit includes a vibration generating device configured to generate vibration, and an anchor fixed to a skull and configured to transmit the vibration to the skull. The vibration generating device is detachably fixed to the anchor.

Abstract: A middle ear sound transmission characteristics evaluation system includes a probe; a measuring probe that includes an actuator that vibrates the probe and a force sensor that outputs a voltage in accordance with a reaction force exerted to the actuator when a tip of the probe is brought into contact with ossicles; an electrode that is installed on or near a round window and detects a potential value of a cochlear microphonic when vibration is applied to the ossicles by the probe; a database that stores a sensor voltage value output by the force sensor before surgical treatment, the potential value detected by the electrode, and surgical details; and a surgical details proposing unit that proposes selected surgical details on the basis of the magnitude of at least one of the sensor voltage value and the potential value measured before surgery with reference to the database.

Abstract: A middle ear sound transmission characteristics evaluation system includes a probe; a measuring probe that includes an actuator that vibrates the probe and a force sensor that outputs a voltage in accordance with a reaction force exerted to the actuator when a tip of the probe is brought into contact with ossicles; an electrode that is installed on a round window or near a round window and detects a potential value of a cochlear microphone when vibration is applied to the ossicles by the probe; a database that stores a sensor voltage value output by the force sensor before surgical treatment, the potential value detected by the electrode, and surgical details; and a surgical details proposing unit that proposes selected surgical details on the basis of the magnitude of at least one of the sensor voltage value and the potential value measured before surgery with reference to the sensor voltage values, potential values, and surgical details stored in the database.

Abstract: A method for controlling an insect pest with vibrations, including a step of determining a frequency range and an amplitude range of vibrations in a habitat medium of an insect pest that induce or suppress a specific behavior of the insect pest, and a step of controlling the insect pest behavior by applying vibrations in the frequency range and amplitude range once or two or more times in the insect pest habitat medium.

Abstract: Provided is a high-accuracy embedded audiphone. A transducer (34) made of a giant magnetostrictive element is provided in an intracorporeal unit (3) that is embedded in a skull (5). An audible sound modulation transmission signal (S1), which is amplitude-modulated by a sound collection signal generated in an extracorporeal unit (2), is transmitted from an extracorporeal transmitter coil (31) to an intracorporeal receiver coil (32) provided in the intracorporeal unit (3) with the help of a transmission magnetic flux (33). Moreover, because of an induced electromotive force of the intracorporeal receiver coil (32), the transducer (34) expands and contracts. Therefore, it is possible to highly accurately conduct an audible sound signal through bone with no power source or demodulation circuit provided in the intracorporeal unit (3).

Abstract: A method for controlling an insect pest with vibrations, including a step of determining a frequency range and an amplitude range of vibrations in a habitat medium of an insect pest that induce or suppress a specific behavior of the insect pest, and a step of controlling the insect pest behavior by applying vibrations in the frequency range and amplitude range once or two or more times in the insect pest habitat medium.

Abstract: Provided is a high-accuracy embedded audiphone. A transducer (34) made of a giant magnetostrictive element is provided in an intracorporeal unit (3) that is embedded in a skull (5). An audible sound modulation transmission signal (S1), which is amplitude-modulated by a sound collection signal generated in an extracorporeal unit (2), is transmitted from an extracorporeal transmitter coil (31) to an intracorporeal receiver coil (32) provided in the intracorporeal unit (3) with the help of a transmission magnetic flux (33). Moreover, because of an induced electromotive force of the intracorporeal receiver coil (32), the transducer (34) expands and contracts. Therefore, it is possible to highly accurately conduct an audible sound signal through bone with no power source or demodulation circuit provided in the intracorporeal unit (3).

Abstract: Sound input to a microphone is converted into an electrical signal and the electrical signal is amplified by an amplifier. The amplified electrical signal is supplied to a primary coil as an alternating current. Thus, a magnetic field around the primary coil varies with time and a secondary coil generates an induced electromotive force. A vibrating coil is supplied with current generated by the induced electromotive force and thus an induced magnetic field is generated around the vibrating coil. The vibrating coil provided on the surface of an eardrum is vibrated by interaction between the induced magnetic field and a magnetostatic field generated by a permanent magnet.