Patents by Inventor Kazunobu Kubota
Kazunobu Kubota has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8311240Abstract: An audio signal processing apparatus includes a high-frequency components extraction means for extracting high-frequency components higher than a predetermined cutoff frequency from the input audio signal and supplying them to satellite speakers by way of a predetermined high frequency range amplifier, a low-frequency components extraction means for extracting low-frequency components lower than a predetermined cutoff frequency from the input audio signal, a correlation reducing means for reducing the correlation of the high-frequency components and the low-frequency components of the input audio signal and a delay means for delaying the low-frequency components and supplying them to a subwoofer by way of a predetermined low frequency range amplifier.Type: GrantFiled: April 3, 2007Date of Patent: November 13, 2012Assignee: Sony CorporationInventors: Shinichi Inoue, Kazunobu Kubota
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Publication number: 20090262963Abstract: An audio reproduction apparatus for a vehicle wherein: a first speaker is installed on the right-hand side of a center position in front of a listener sitting on a right-side seat whereas a second speaker is installed on the left-hand side thereof; a third speaker is installed on the right-hand side of a center position in front of a listener sitting on a left-side seat and on the left-hand side of the second speaker whereas a fourth speaker is installed on the left-hand side of the center position in front of the listener; an audio signal of a right channel is supplied to the first and second speakers; an audio signal of a left channel is supplied to the third and fourth speakers; and low and intermediate frequency components of a sum of the audio signal of the right channel and the left channel are supplied to a fifth speaker.Type: ApplicationFiled: March 3, 2009Publication date: October 22, 2009Applicant: Sony CorporationInventors: Shinichi Inoue, Kazunobu Kubota
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Patent number: 7424121Abstract: An audio signal processing method that performs virtual acoustic image localization processing for sound source signals having at least one type of information among position information, movement information, and localization information based on this information there are a plurality of changes in this information within a prescribed time unit, a single information change is generated based on this plurality of information changes, and virtual acoustic image localization processing is performed for the sound source signals based on this generated information change.Type: GrantFiled: July 30, 2001Date of Patent: September 9, 2008Assignee: Sony CorporationInventor: Kazunobu Kubota
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Publication number: 20070288110Abstract: An audio signal processing apparatus includes a high-frequency components extraction means for extracting high-frequency components higher than a predetermined cutoff frequency from the input audio signal and supplying them to satellite speakers by way of a predetermined high frequency range amplifier, a low-frequency components extraction means for extracting low-frequency components lower than a predetermined cutoff frequency from the input audio signal, a correlation reducing means for reducing the correlation of the high-frequency components and the low-frequency components of the input audio signal and a delay means for delaying the low-frequency components and supplying them to a subwoofer by way of a predetermined low frequency range amplifier.Type: ApplicationFiled: April 3, 2007Publication date: December 13, 2007Applicant: SONY CORPORATIONInventors: Shinichi INOUE, Kazunobu KUBOTA
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Patent number: 7203327Abstract: A number (M) of sound source signals T1, T2, T3, T4, each having at least one information element of position information, movement information and localization information, are synthesized to N sound source signals SL, SR based on the information element where N is smaller than the number (M) of the sound source signals and the N synthesized sound source signals SL, SR having this synthesized information are localized in a virtual sound image. An amount of data to be processed can be reduced while virtual reality can be realized by the synthesized sound source signals.Type: GrantFiled: August 1, 2001Date of Patent: April 10, 2007Assignee: Sony CorporationInventor: Kazunobu Kubota
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Publication number: 20020034307Abstract: M (M is in the plural) sound source signals T1, T2, T3, T4, each having at least one information of position information, movement information and localization information, are synthesized to N sound source signals SL, SR based on this information where N is smaller than the number (M) of the sound source signals and N synthesized sound source signals SL, SR having this synthesized information are localized in virtual sound image An amount of data to be processed can be reduced while virtual reality can be realized by sounds.Type: ApplicationFiled: August 1, 2001Publication date: March 21, 2002Inventor: Kazunobu Kubota
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Publication number: 20020021811Abstract: An object is to reduce the signal processing volume in an audio processing unit. In an audio signal processing method which performs virtual acoustic image localization processing for sound source signals having at least one type of information among position information, movement information, and localization information, based on this information, when there are a plurality of changes in this information within a prescribed time unit, a single information change is generated based on this plurality of information changes, and virtual acoustic image localization processing is performed for the sound source signals based on this generated information change.Type: ApplicationFiled: July 30, 2001Publication date: February 21, 2002Inventor: Kazunobu Kubota
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Patent number: 5802186Abstract: An audio signal processing apparatus wherein an unnatural variation of the output signal level is prevented when the signal levels are corrected in an interlocking relationship between the input and the output to and from an arithmetic processing element, wherein correction of the output signal level which is performed in an interlocking relationship with correction of the input signal level is delayed by a time equal to a delay time by the arithmetic processing element.Type: GrantFiled: December 3, 1996Date of Patent: September 1, 1998Assignee: Sony CorporationInventor: Kazunobu Kubota
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Patent number: 5187289Abstract: A method of preparing 2-phenylbenzotriazoles expressed by Formula I: ##STR1## (wherein R.sub.1 denotes a hydrogen or chlorine atom, a lower alkyl group having 1 to 4 carbon atoms, a lower alkoxyl group having 1 to 4 carbon atoms, a carboxyl group or a sulfonic acid group; R.sub.2 denotes a hydrogen or chlorine atom, a lower alkyl group having 1 to 4 carbon atoms or a lower alkoxyl group having 1 to 4 carbon atoms; R.sub.3 denotes a hydrogen or chlorine atom, an alkyl group having 1 to 12 carbon atoms, a lower alkoxyl group having 1 to 4 carbon atoms, a phenyl group, a phenyl group substituted by an alkyl group having 1 to 8 carbon atoms, a phenoxy group or a phenylalkyl group with an alkyl part having 1 to 4 carbon atoms; R.sub.4 denotes a hydrogen or chlorine atom, a hydroxyl group or an alkoxyl group having 1 to 4 carbon atoms; and R.sub.Type: GrantFiled: July 31, 1991Date of Patent: February 16, 1993Assignee: Chemipro Kasei Kaisha, Ltd.Inventors: Naohiko Fukuoka, Kazunobu Kubota, Kunitoshi Iguchi
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Patent number: 5104992Abstract: A method of preparing 2-phenylbenzotriazoles expressed by Formula I: ##STR1## (wherein R.sub.1 denotes a hydrogen or chlorine atom, a lower alkyl group having 1 to 4 carbon atoms, a lower alkoxyl group having 1 to 4 carbon atoms, a carboxyl group or a sulfonic acid group; R.sub.2 denotes a hydrogen or chlorine atom, a lower alkyl group having 1 to 4 carbon atoms or a lower alkoxyl group having 1 to 4 carbon atoms; R.sub.3 denotes a hydrogen or chlorine atom, an alkyl group having 1 to 12 carbon atoms, a lower alkoxy group having 1 to 4 carbon atoms, a phenyl group, a phenyl group substituted by an alkyl group having 1 to 8 carbon atoms, a phenoxy group or a phenylalkyl group with an alkyl part having 1 to 4 carbon atoms; R.sub.4 denotes a hydrogen or chlorine atom, a hydroxyl group or an alkoxyl group having 1 to 4 carbon atoms; and R.sub.Type: GrantFiled: April 2, 1990Date of Patent: April 14, 1992Assignee: Chemipro Kasei Kaisha, Ltd.Inventors: Naohiko Fukuoka, Kazunobu Kubota, Kunitoshi Iguchi