Sony Corporation

Other

Sony Group Corporation

Thomson Licensing

Yoshio Ohashi

Masaru Uryu

Nobukazu Suzuki

Toshiyuki Nakagawa

Kunihiko Tokura

Gen Ichimura

Hiroshi Yoshioka

Naotaka Tsunoda

Katsuji Takahashi

Yutaka Miki

Satoshi Idemura

Takeshi Hara

Michiya Nakashima

Terutaka Yana

Kohei Asada

Yukio Tanaka

Teppei Yokota

Masanobu Yamamoto

Yasuo Osada

Yohei Fukuma

Tetsunori Itabashi

Tsutomu Ishimoto

Motohiro Furuki

Takao Kondo

Koyuru Okimoto

Isamu Nakao

Akihisa Inatani

Jun Kishigami

Shin Yamaguchi

Yuuji Yamada

Takeshi Yamamoto

Kohei Kikuchi

Yoshiyuki Kaku

Nobuyuki Nishigori

Kazuhiro Matsutani

Kazuko Yamagishi

Yasuo Kawabata

Akinori Toda

Manabu Hamakawa

Yoshihiro Iwami

The present technology relates to an audio device and a driving method thereof, and a display device which are configured to make it possible to obtain sufficient sound pressure level in a wider frequency band. The audio device includes: a diaphragm; an electrodynamic vibrator that vibrates the diaphragm to output sound; and a piezoelectric vibrator that vibrates the diaphragm to output sound. The present technology can be applied to the display device.

Audio device and driving method thereof, and display device

A display panel according to an embodiment of the present disclosure includes a flexible organic electroluminescent panel, and one or a plurality of piezoelectric films provided on a rear surface of the organic electroluminescent panel and vibrating the organic electroluminescent panel as a flat speaker.

Display panel and display apparatus

An audio device includes a thin film material having a capacitive property, the thin film material including an acoustic sheet having a curved shape, in which the acoustic sheet includes a first region that is actively driven by an input signal and a second region that is not actively driven by the input signal and the first region is formed in at least a part of an outside of the second region.

Audio device and audio reproduction apparatus

Generation of a secondary sound source is inhibited, and a sound quality is improved. Included are a support fixed to a mount base, a speaker unit including a portion to be fixed, and a base casing holding the speaker unit, and the speaker unit is fixed to the support and the base casing with the portion to be fixed being sandwiched between the support and the base casing. With this configuration, the speaker unit will be held stably, a great oscillation from a diaphragm of the speaker unit is less transmitted to the parts other than the diaphragm of the speaker unit, to the member holding the speaker unit, or the like. Generation of a secondary sound source is inhibited, and a sound quality can be improved.

Speaker apparatus

The present technology relates to an electroacoustic transducer and an electroacoustic transducer apparatus that are compact, have good characteristics, and can retain their stable shape. The electroacoustic transducer includes: a first sheet including a sheet-like piezoelectric material and having a curved shape; and a second sheet having substantially the same shape as the first sheet and placed on the first sheet in a layered manner. The present technology can be applied to an electroacoustic transducer.

Electroacoustic transducer and electroacoustic transducer apparatus

The present technology relates to a sound reproducing apparatus and method, and a program that enable sound reproduction with high sound quality and excellent directivity characteristics at lower costs. A sound reproducing apparatus includes: an amplification unit that amplifies an acoustic signal; a plurality of electroacoustic transducers that output sound in accordance with the acoustic signal output from the amplification unit, the electroacoustic transducers having characteristics of a capacitive load; and a switching unit that switches connections of the electroacoustic transducers to the amplification unit, to connect one or a plurality of electroacoustic transducers among the plurality of electroacoustic transducers to the amplification unit. The present technology can be applied to a sound reproducing apparatus, for example.

Sound reproducing apparatus and method, and program

Provided is an acoustic transducer which is used by being fitted into an ear of a listener, is formed in a compact and lightweight shape, and preferably prevents re-reflection of a sound wave. An acoustic transduceris formed of a film-shaped material having an expanding and contracting action and includes a cylindrical acoustic transducing element. The cylindrical acoustic transducing elementalso functions as a sound guide tube. The acoustic transducing elementprevents re-reflection of the sound wave reflected by an eardrum when the sound wave has been generated and prevents localization phenomenon and a feeling of pressure in auditory sense. Also, since the acoustic transducing elementis formed in a compact and lightweight shape, the acoustic transducing elementgenerates the sound wave for directly reaching the eardrum or collects the sound at a place near the eardrum without a feeling of foreign materials in a case where a person wears the acoustic transducing elementthe an ear.

Acoustic transducer

A sound output apparatus includes a diaphragm having a predetermined plane positioned at a rear surface side of a light provision unit, and a vibrator for providing vibration in a direction substantially orthogonal to the predetermined plane.

Sound output apparatus, sound output method and image display apparatus

A speaker system includes: a display panel having a display screen; a structure having a plate part functioning as an acoustic diaphragm located outside of a perimeter of the display screen and being supported by the display panel; and an actuator attached to the structure so that a displacement direction of the actuator may be a direction of a plate surface of the plate part.

Speaker system and speaker driving method

A speaker has an acoustic diaphragm, and an actuator that is driven based on a first acoustic signal. The actuator has a transmission portion that is directly or indirectly attached to the acoustic diaphragm and transmits a displacement output of the actuator to the acoustic diaphragm. The speaker also has a sounding body that is driven based on a second acoustic signal that is identical to or different from the first acoustic signal.

Speaker

A speaker system includes: a first speaker unit having a predetermined directivity angle in the horizontal direction; and a pair of second speaker units which are disposed opposite to each other with the first speaker unit sandwiched between them when viewed in the vertical direction and which have a directivity angle in the horizontal direction greater than the directivity angle of the first speaker unit, wherein distances from the center of the first speaker unit to the centers of the pair of second speaker units are equal to each other, and the first speaker unit and the pair of second speaker units are disposed so as to face toward the same direction.

A speaker apparatus includes: a diaphragm vibrating to output sounds and being formed in an annular shape having a center hole in the middle thereof; a driving section causing the diaphragm to vibrate; a light emitting member emitting light; and a heat controlling member radiating heat generated when the light emitting member emits light or conducting the heat to a heat radiating section, wherein at least a part of the heat controlling member is provided on an axis including the center axis of the diaphragm, and the light emitting member is disposed on an end face of the heat controlling member.

A speaker device includes: an acoustic diaphragm; a vibration transfer member provided in a state of touching the acoustic diaphragm over a given length, which is configured to transfer vibration to the acoustic diaphragm; and an actuator configured to add vibration corresponding to an audio signal to be reproduced to the vibration transfer member to thereby transfer vibration to the acoustic diaphragm through the vibration transfer member and to generate sound.

Speaker device

A reproduction device includes an information reading unit that reads sensitivity information from a storage unit of a headphone device which has a speaker reproducing an electric signal of an audible signal as a sound and the storage unit storing the sensitivity information for the speaker, an adjustment unit that adjusts an output level of the electric signal supplied to the headphone device, and a control unit that reads the sensitivity information from the storage unit via the information reading unit, and controls the adjustment unit such that the electric signal lies in an allowable maximal output level based on the sensitivity information.

Reproduction device and reproduction method

Growing community of inventors

Kanagawa, Japan

Yoshio Ohashi