Funai Electric Company Ltd.

Funai Electric Advanced Applied Technology Research Institute Inc.

Kemphys Ltd.

Kiyoshi Sugiyama

Fuminori Tanaka

Ryusuke Horibe

Takeshi Inoda

Masatoshi Ono

Toshimi Fukuoka

Rikuo Takano

Hideki Choji

Shigeo Maeda

Koichi Shudo

Hideki Chouji

Ono Masatoshi

A medicament to be applied as an external preparation for therapeutic treatment of a local symptom of a neuropathic disease, which contains gabapentin or pregabalin in the form of an aqueous solution.

Medicament for therapeutic treatment of neuropathic disease

A microphone unit includes a microphone substrate. A plurality of diaphragm units are disposed on the microphone substrate. Each of the diaphragm units includes a diaphragm. A plurality of partition walls are disposed on the microphone substrate. Each of the partition walls surrounds the diaphragm so as to define a first area. A signal processor is disposed at a second area outside the first area and is configured to process signals output from the diaphragm units.

Microphone unit having a plurality of diaphragms and a signal processing unit

An integrated circuit device includes a circuit board ('), the circuit board including a first diaphragm (-) that forms a first microphone, a second diaphragm (-) that forms a second microphone, and a differential signal generation circuit () that receives a first voltage signal obtained by the first microphone and a second voltage signal obtained by the second microphone, and generates a differential signal that indicates a difference between the first voltage signal and the second voltage signal.

Integrated circuit device, voice input device and information processing system

There is provided an integrated circuit device having a wiring board', the wiring board&#x2032; including: a first vibrating membrane-which forms a first microphone; a second vibrating membrane-which forms a second microphone; and a differential signal generating circuitwhich receives a first voltage signal obtained in the first microphone and a second voltage signal obtained in the second microphone and generates a differential signal indicating a difference between the first and second voltage signals, and a voice input device and an information processing system including the same. Accordingly, it is possible to realize a voice input element having a small size and a noise removal function with high accuracy.

A voice input device, a method for manufacturing the same, and an information processing system are provided. The voice input device has a function of removing a noise component and includes a first microphone-that includes a first vibrating membrane, a second microphone-that includes a second vibrating membrane, and a differential signal generation sectionthat generates a differential signal between a first voltage signal and a second voltage signal. The first and second vibrating membranes are disposed so that a noise intensity ratio is smaller than an input voice intensity ratio that represents the ratio to intensity of an input voice component. The differential signal generation sectionincludes a delay sectionand a differential signal output sectionthat generates and outputs a differential signal with respect to a signal to which a delay is applied by the delay section.

Voice input device, method for manufacturing the same, and information processing system

A voice input device includes a first microphone (-) that includes a first diaphragm, a second microphone (-) that includes a second diaphragm, and a differential signal generation section () that generates a differential signal that indicates a difference between a first voltage signal and a second voltage signal, the first diaphragm and the second diaphragm being disposed so that a noise intensity ratio is smaller than an input voice intensity ratio (input voice component intensity ratio), and the differential signal generation section () including a gain section () that amplifies the first voltage signal by a predetermined gain, and a differential signal output section () that generates and outputs a differential signal that indicates a difference between the first voltage signal amplified by the gain section and the second voltage signal.

Voice input device, method of producing the same, and information processing system

To provide a downsized microphone unit in which a differential microphone is densely mounted thereon. The microphone unit has a cover portionand a microphone substrate, in which a first substrate internal spaceis communicated with a cover portion internal spacevia a first substrate openingand a cover portion opening, and is communicated with the outside via a second substrate opening, a second substrate internal spaceis communicated with the cover portion internal spacevia a third substrate openingand a cover portion opening, and is communicated with the outside via a fourth substrate opening, a partition portioncovers a communication aperture between the first substrate openingand the cover portion opening, and a diaphragmcovers at least a part of the communication aperture between the first substrate openingand the cover portion opening

Microphone unit

A voice input device includes a first microphone (-) that includes a first diaphragm, a second microphone (-) that includes a second diaphragm, and a differential signal generation section () that generates a differential signal that indicates a difference between a first voltage signal and a second voltage signal, the first diaphragm and the second diaphragm being disposed so that a noise intensity ratio is smaller than an input voice intensity ratio (input voice component intensity ratio), and the differential signal generation section () including a delay section (), and a differential signal output section () that generates and outputs a differential signal based on a signal delayed by the delay section.

A microphone unitof the present invention includes a casehaving an internal space, a partition memberwhich is provided in the case, and at least partially composed of a vibrating membrane, that splits the internal space into a first spaceand a second space, and an electrical signal output circuitthat outputs an electrical signal on the basis of vibration of the vibrating membrane. A first through holethrough which the first spaceand an external space of the case are communicated with each other, and a second through holethrough which the second spaceand the external space of the case are communicated with each other are formed in the case. In accordance with the present invention, it is possible to provide a high-quality microphone unit whose outer shape is small and which is capable of performing thorough noise cancellation.

Microphone unit, close-talking type speech input device, information processing system, and method for manufacturing microphone unit

Provided is a microphone unit having flat frequency characteristics. A microphone unit includes a casing, a first substrate, a second substrate, a vibrating unit, a diaphragm, an ASIC, and a dummy component. The dummy component is attached to the substrate to be located below an opening.

Microphone unit and mobile phone provided with the same

A microphone unit includes: a housing which has an inner space; a partition member which is provided in the housing and divides the inner space into a first space and a second space, the partition member being at least partially formed of a diaphragm; and an electrical signal output circuit which outputs an electrical signal based on vibrations of the diaphragm. In the housing, a first through-hole through which the first space communicates with an outer space of the housing and a second through-hole through which the second space communicates with the outer space are formed.

Microphone unit , voice input device, and method of manufacturing microphone unit

A differential microphone includes a housing having a first space and a second space formed therein, and a first diaphragm arranged within the housing. A first opening connecting the first space to outside and a second opening connecting the second space to the outside are formed in the housing. A dimension of the first opening and the second opening in a first direction perpendicular to a straight line passing through centers of both openings is longer than a dimension of the first opening and the second opening in a second direction parallel to the straight line passing through the centers of both openings.

Differential microphone

A sound input device includes a differential microphone, configured to receive sound including noise, and generate a first signal in accordance with the sound; a detector, configured to detect the noise, and generate a second signal in accordance with the detected noise; and a controller, configured to control at least one of suppression of high-frequency components of the first signal and changing of a frequency band to be suppressed of the first signal based on the second signal.

Sound input device

A microphone unit includes a substrate. The substrate includes a first face formed with a first recess, a second face opposite to the first face, and a through hole communicating the second face to a bottom part of the first recess. A diaphragm unit includes a diaphragm, and at least a part of which is disposed in the first recess so that the diaphragm opposes the through hole.

Growing community of inventors

Tokyo, Japan

Kiyoshi Sugiyama