Kyocera Corporation

Satoshi Mizuta

Tomoaki Miyano

Kiyokazu Sato

Toshihisa Nabata

Shun Kazama

Akio Kihara

Yasuhiro Katayama

Tomohiro Inagaki

Kenichi Ozasa

Motonori Imamura

Masanori Umehara

Kihara Akio

Provided is an electronic device that can be appropriately used as a type of electronic device that vibrates a panel attached to a housing. The electronic device includes a piezoelectric element, a panel, to which the piezoelectric element is attached, that vibrates due to the piezoelectric element to generate a vibration sound transmitted by vibrating a part of a human body, a housing supporting the panel with a first face, a microphone contained within the housing and disposed on a second face, and a buffer that damps vibration transmitted from the panel to the microphone through the first face and/or the second face, thereby reducing noise picked up by the microphone.

Electronic device

An electronic device includes a vibration unit configured to generate a vibration sound transmitted by vibrating a contacting or pressing body part; and piezoelectric elements stacked on and attached to the vibration unit and vibrating the vibration unit in accordance with an input signal. The piezoelectric elements each have a different capacitance. Voltage of the input signal to the piezoelectric elements is varied in accordance with frequency band, thereby suppressing power consumption.

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.

Provided is an electronic device including a housing and an acoustic device configured to generate vibration sound that is transmitted through vibration of a part of a human body. The acoustic device includes a panel configured to be joined to the housing; a piezoelectric element configured to be joined to the panel for vibrating the panel; and a vibration adjusting unit configured to be joined to the panel and vibrated together with the panel by the piezoelectric element. With the above configuration, a frequency characteristic is improved.

According to an aspect, a communication system includes a mobile communication device and a communication device. The mobile communication device includes: a position information acquiring unit configured to acquire its own position information; and a communication unit configured to transmit the position information and an emergency signal. The communication device is configured to display, when detecting that the emergency signal and the position information of the mobile communication device are transmitted from the mobile communication device, the position information of the mobile communication device and its own position information on a display unit.

Communication system and mobile communication device for providing position information, map information and evacuation route in case of emergency

The content of sound leakage from a vibrating plate that vibrates due to a piezoelectric element is made difficult to recognize. An electronic device () according to the present invention includes a piezoelectric element () and a vibrating plate () that vibrates due to the piezoelectric element (), the electronic device () causing the vibrating plate () to generate air-conducted sound and vibration sound that is transmitted by vibrating a part of a human body. The electronic device () also includes an air-conducted sound reducing unit that makes a portion or all of the air-conducted sound difficult to hear.

An echo caused by sound leakage from a housing that vibrates due to a vibrating body is reduced. An electronic device () according to the present invention includes a piezoelectric element (), a vibrating plate () that vibrates due to the piezoelectric element (), microphones (), and an equalizer (), the electronic device () causing the vibrating plate () to generate air-conducted sound and vibration sound that is transmitted by vibrating a part of a human body. The equalizer () makes a low-range emphasis setting, to emphasize a low frequency range more than a high frequency range of the air-conducted sound, when the volume of the air-conducted sound collected by the microphones () exceeds a predetermined threshold.

Electronic device and method for controlling electronic device

An electronic device () is provided with a piezoelectric element (), a panel () holding the piezoelectric element (), and a housing () holding the panel () and transmitting vibration through the panel (). The electronic device () causes the panel () to generate vibration sound that is transmitted by vibrating a part of a human body. The electronic device () includes a stiffness varying portion () in which the stiffness of the housing () varies.

Electronic device including stiffness varying portion on housing

The electronic device including a piezoelectric element, a vibration plate having the piezoelectric element fixed thereto for generating air conduction sound by vibrating the piezoelectric element and sound to be transmitted by vibrating a part of a human body, a housing having the vibration plate fixed thereto, and an operation key provided to the housing, makes vibration of the vibration plate not likely to be transmitted to the operation key.

In order to be appropriately usable as an electric device for vibrating a panel attached to a housing, an electronic device including a piezoelectric element; a housing having a first principle plane having the piezoelectric element fixed thereto and a second principle plane opposite to the first principle plane; and a lid member having a joint portion for removably joining to the second principle plane; causes the housing to generate sound transmitted by vibrating a part of a human body, such that the piezoelectric element is provided on a first side in a first direction parallel to the first principle plane, and a joint position of the joint portion is provided on a second side opposite to the first side in the first direction.

Provided is an electronic device that is capable of reducing sound leakage from a vibration plate vibrated by a piezoelectric element. An electronic deviceof the present invention includes: a piezoelectric element; and a vibration plateconfigured to be vibrated by the piezoelectric element. Vibration sound is transmitted by the vibration plate vibrating a part of a human body. The piezoelectric elementis vibrated using a processed sound signal in which at least a part of frequency components of a sound reproduction signal that are higher than a predetermined threshold value is cut or attenuated.

Electronic device that vibrates an element for sound transmission

Provided is an electronic device including: a piezoelectric element; a vibration plate to which the piezoelectric element is joined for vibration; and a housing to which the vibration plate is joined. Vibration sound, which is transmitted by vibrating a part of a human body, is generated by the vibration plate. The vibration plate includes, in a plan view thereof, a first area including a joining portion with the piezoelectric element and a second area located further away from the joining portion than the first area is, and rigidity in a first area is lower than rigidity in the second area. With the above configuration, sound leakage or the like is reduced, and usability of the electronic device is improved.

Provided is an electronic device, including: a piezoelectric element; a panelconfigured to support the piezoelectric element; and a housingconfigured to hold the paneland conduct a vibration through the panel, the panelgenerating air-conduction sound and vibration sound that is transmitted by vibrating a part of a human body. The housingincludes a first housing portionand a second housing portionlocated inward of the first housing portion, and rigidity-reinforcing portions () are disposed between the first housing portionand the second housing portionfor improving rigidity of the housing

A portable terminal device able to suppress a feeling of strangeness caused by audio not desired by a user is provided. A mobile phonehas an audio output portionoutputting an audio signal, and can make a speakerarranged in a cradle deviceoutput audio in accordance with the audio signal therefrom by outputting the audio signal from the audio processing portionto the cradle devicewhen it is connected to the connectable cradle device. The mobile phonehas an external speaker output control portionfor restricting the output of the audio signal to the speakerwhen the type of the audio signal output from the audio processing portionis a specific type.

Growing community of inventors

Sagamihara, Japan

Satoshi Mizuta