Kyocera Corporation

Kyocera Corporaton

Kyocera Corporatiion

Tomohiro Inagaki

Seiji Horii

Tomoaki Miyano

Kenichi Ozasa

Yoichi Hirata

Satoshi Mizuta

Akio Kihara

Kiyokazu Sato

Shun Kazama

Hayato Mizuno

Mizuho Hidaka

Hiroto Yahagi

Asao Hirano

Keiichi Nagoshi

Tomoaki Nakamura

Tsutomu Zaima

Hideo Tomioka

Takuji Masunaga

Koutatsu Kanayama

A brush includes a head and a body. The head includes bristles, a diaphragm, and a vibration source attached to the diaphragm. The head is attached to the body. The body includes a circuit configured to supply to the vibration source a supply signal including a non-discrete signal in the audible range.

Brush, replacement member for brush, and method for using brush

There has been no sufficient study to address an issue caused in the use of an open-air type audio device. Therefore, provided is an audio device with an actually useful organism sensor. In particular, the audio device includes an audio unitto externally abut on the ear without being inserted thereinto, and an organism sensor unitto be inserted into the ear.

Audio device

A measurement method of this disclosure is for evaluating an electronic device () that transmits air-conducted sound, generated by vibration of a vibrating body (), to a user by the vibrating body () being placed in contact with a human ear. The measurement method includes placing the vibrating body () in contact with an ear model unit (), measuring air-conducted sound generated by the electronic device () and air-conducted sound generated in the ear model unit (), and selecting a correction value from among a plurality of correction values.

Measurement system and measurement method

Provided is a measurement system for evaluating an electronic apparatus that, when a vibrator of the electronic apparatus is pressed against the human ear, delivers a sound generated by vibration of the vibrator. The measurement system includes: an ear-shaped unit composed of an ear model simulating the human ear and an artificial ear canal portion constituting an artificial ear canal extending from the ear model; an artificial mandible portion disposed next to the artificial ear canal portion in the ear-shaped unit in a planar view; and a vibration detection unit that is disposed on a plane of the artificial mandible opposite to the ear model and detects and outputs vibration delivered to the artificial mandible portion.

Measurement system and measurement unit

This measurement system quantitatively presents the effect of wearing an acoustic device that transmits sound to a user by contacting a vibrating body to a human auricle. In a measurement system including an ear model, which is provided with an artificial auricle and an artificial external ear canal, and an air-conducted sound gauge that measures air-conducted sound in the artificial external ear canal, while an acoustic device is contacted to the ear model of the measurement system, the acoustic device including a vibrating body and transmitting sound to a user by contacting the vibrating body to a human auricle, the measurement system measures, with the air-conducted sound gauge, air-conducted sound generated by the acoustic device and presents the result of measurement together with a characteristic corresponding to when the user wears the acoustic device.

Measurement system

A measurement device () for evaluating an electronic device () that causes sound to be heard via vibration transmission by pressing a vibrating body against a human ear includes an ear model () modeled after a human ear and vibration pickups () and () disposed at a periphery of an artificial external ear canal () formed in the ear model ().

Measurement device and measurement system

Provided is a measuring apparatus capable of measuring a vibration amount weighted with characteristics of vibration transmission to a human ear and capable of evaluating correctly an electronic device having a vibrator. A measuring apparatusconfigured to evaluate an electronic devicethat transmits vibration sound to a human ear by pressing a vibratorheld in a housingthereto, including an ear simulatorthat mimics a human ear, and a vibration detection unitdisposed on a peripheryof an artificial ear canalformed in the ear simulator

Measuring apparatus, measuring system and measuring method

The disclosed acoustic device and method of using the same allow perception of a bright, clear sound. In an acoustic device () for transmitting sound to a user through vibration conduction by contacting a vibrating body () to a human auricle, when a measurement system (), provided with an ear model () including an artificial auricle () and an artificial external ear canal () and with a microphone () that measures air-conducted sound in the artificial external ear canal (), measures the air-conducted sound upon the acoustic device () outputting a fundamental frequency at a predetermined frequency in an audible frequency band while placed in contact with the ear model (), three or more harmonics at or above the sixth harmonic and having a volume exceeding a volume 45 dB below the volume of the fundamental frequency are measured.

Acoustic device and method of using the same

A measurement system includes an ear model including an artificial auricle () and an artificial external ear canal (); and an air-conducted sound gauge () that measures air-conducted sound in the artificial external ear canal (), and while an acoustic device () that includes a vibrating body and transmits sound to a user by contacting the vibrating body to a human auricle is placed in contact with the ear model () of the measurement system, the measurement system executes control for measurement, with the air-conducted sound gauge, of harmonics in an air-conducted component generated by a pure tone emitted by the acoustic device () and control to display the result of the measurement on a display.

This acoustic reproduction device can suppress a loss in sense of volume and sense of comfort. The acoustic reproduction device causes a user to hear sound and is provided with a vibration unit (), which includes a piezoelectric element () that flexes and a panel () that vibrates by being bent directly by the piezoelectric element (), and with a holder (), which holds the vibration unit () at a position where the vibration unit () contacts the user's ear.

Acoustic reproduction device and sound-collecting acoustic reproduction device

A vibration pickup device for measuring an electronic device that transmits sound to a user via vibration transmission by pressing a vibrating body held in a housing against a human ear includes a plate-shaped vibration transmission member and a vibration pickup joined to a portion of the vibration transmission member. The vibration transmission member is mountable on a peripheral portion of an artificial external ear canal, formed in an ear model unit modeled after a human ear, and includes a hole in communication with the artificial external ear canal.

Vibration pickup device, vibration measurement device, measurement system, and measurement method

According to the present invention, air conduction sound and human body vibration sound (e.g. bone conduction sound) are transmitted to a user without a need for pressing a vibration body itself to an ear. An electronic deviceof the present invention includes: a panel; a housingconfigured to support the panel; and a piezoelectric elementattached to the panel. The panelis deformed due to deformation of the piezoelectric element, and air conduction sound and human body vibration sound are transmitted to an object that is in contact with the deformed panel

Electronic device

Provided is an electronic device including: a housing; a vibration body disposed in the housing; and a microphone disposed in the housing. By vibrating the vibration body, the electronic device transmits air conduction sound and vibration sound that is generated by the vibration. During the generation of the sounds, howling reduction processing is performed, so that usability of the electronic device is improved.

Growing community of inventors

Yokohama, Japan

Tomohiro Inagaki