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Inventor:
Ishibashi; Toshiaki
Address:
Fukuroi, JP
No. of patents:
9
Patents:












Patent Number Title Of Patent Date Issued
8565464 Audio conference apparatus October 22, 2013
In an audio signal transmission/reception device that receives and emits sounds so as to perform transmission and reception of audio signals via communications, user operability can be improved and the size of a main unit can be reduced. It is equipped with a speaker array for arranging
8300839 Sound emission and collection apparatus and control method of sound emission and collection appa October 30, 2012
A level ratio calculation circuit calculates average signal level data of signal level data corresponding to each sound collection beam signal, and calculates a level ratio between the average signal level data and each of the signal level data. Since a diffraction sound is substantially
8280023 Communication conference system, voice changing device, and signal converting adaptor October 2, 2012
A communication conference system that enables users who have only a connecting unit via a telephone line network and users who have only an IP connecting unit to hold a talk session mutually without a need of an expensive dedicated conference server is provided. A talk session device
8243951 Sound emission and collection device August 14, 2012
It is possible to provide a sound emission and collection device having a compact configuration and being capable of suppressing a wraparound sound from a speaker to a microphone and improving the S/N ratio. In the sound emission and collection device, a plurality of speakers (11) have a
8238584 Voice signal transmitting/receiving apparatus August 7, 2012
A voice signal transmitting/receiving apparatus includes: a device body; a speaker array arranged in the device body and including a plurality of arrayed speaker units; and a microphone array arranged in the device body and including a plurality of arrayed microphones. By thus integratin
8238573 Conference apparatus August 7, 2012
Microphone arrays, which are formed by arranging a plurality of microphones, are provided on a front side and a rear side of a housing, respectively. A virtual focus is set for each of the microphone arrays in a direction opposite to a direction in which sound is picked-up sound sign
8144886 Audio conferencing apparatus March 27, 2012
Microphones arranged in an array shape along a longitudinal direction are respectively formed in both the longitudinal side surfaces of a housing 2 with substantially an elongated rectangular parallelepiped shape, and speakers arranged in an array shape along the longitudinal direction a
8135143 Remote conference apparatus and sound emitting/collecting apparatus March 13, 2012
A speaker array and microphone arrays positioned on both sides of the speaker array are provided. A plurality of focal points each serving as a position of a talker are set in front of the microphone arrays respectively symmetrically with respect to a centerline of the speaker array,
7929720 Position detecting system, speaker system, and user terminal apparatus April 19, 2011
A position detecting system capable of detecting the position of a user as a listener in a simple manner. The position detecting system comprises a speaker system comprising a plurality of spatially-arranged speakers including at least a first speaker and a second speaker, a user termina










 
 
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