Patents by Inventor Noriyuki Ozawa
Noriyuki Ozawa 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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Publication number: 20180220225Abstract: A signal processing device includes a noise analysis unit for analyzing a frequency component of a noise signal obtained by converting a collected sound into an electrical signal, a plurality of filtering units for carrying out predetermined filtering operations on the noise signal on the basis of an analysis result, and an output control unit for temporally varying a synthesis rate of outputs of the plurality of filtering units according to a change in the analysis result of the noise analysis unit. When the analysis result of the noise analysis unit changes, one filtering unit starts a predetermined filtering operation by characteristics different from those of other filtering units that carry out predetermined filtering operations on the noise signal according to the change in the analysis result of the noise analysis unit.Type: ApplicationFiled: March 28, 2018Publication date: August 2, 2018Applicant: Sony CorporationInventors: Yasunobu Murata, Kohei Asada, Noriyuki Ozawa
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Patent number: 9986326Abstract: A signal processing device includes a noise analysis unit for analyzing a frequency component of a noise signal obtained by converting a collected sound into an electrical signal, a plurality of filtering units for carrying out predetermined filtering operations on the noise signal on the basis of an analysis result, and an output control unit for temporally varying a synthesis rate of outputs of the plurality of filtering units according to a change in the analysis result of the noise analysis unit. When the analysis result of the noise analysis unit changes, one filtering unit starts a predetermined filtering operation by characteristics different from those of other filtering units that carry out predetermined filtering operations on the noise signal according to the change in the analysis result of the noise analysis unit.Type: GrantFiled: July 13, 2015Date of Patent: May 29, 2018Assignee: Sony CorporationInventors: Yasunobu Murata, Kohei Asada, Noriyuki Ozawa
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Patent number: 9578410Abstract: There is provided a sound reproduction device including a left channel housing unit that accommodates at least a left channel driver unit outputting a left channel sound, a left channel microphone recording an external sound, and a left channel micro-computer controlling a setting for a noise cancelling processing based on a recording signal of the left channel microphone; and a right channel housing unit that accommodates at least a right channel driver unit outputting a right channel sound, a right channel microphone recording an external sound, and a right channel micro-computer controlling a setting for a noise cancelling processing based on a recording signal of the right channel microphone. The left channel micro-computer and the right channel micro-computer are configured to communicate data with each other.Type: GrantFiled: January 29, 2015Date of Patent: February 21, 2017Assignee: Sony CorporationInventors: Noriyuki Ozawa, Osamu Nishida, Naotaka Tsunoda
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Publication number: 20150319522Abstract: A signal processing device includes a noise analysis unit for analyzing a frequency component of a noise signal obtained by converting a collected sound into an electrical signal, a plurality of filtering units for carrying out predetermined filtering operations on the noise signal on the basis of an analysis result, and an output control unit for temporally varying a synthesis rate of outputs of the plurality of filtering units according to a change in the analysis result of the noise analysis unit. When the analysis result of the noise analysis unit changes, one filtering unit starts a predetermined filtering operation by characteristics different from those of other filtering units that carry out predetermined filtering operations on the noise signal according to the change in the analysis result of the noise analysis unit.Type: ApplicationFiled: July 13, 2015Publication date: November 5, 2015Applicant: Sony CorporationInventors: Yasunobu Murata, Kohei Asada, Noriyuki Ozawa
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Publication number: 20150222979Abstract: There is provided a sound reproduction device including a left channel housing unit that accommodates at least a left channel driver unit outputting a left channel sound, a left channel microphone recording an external sound, and a left channel micro-computer controlling a setting for a noise cancelling processing based on a recording signal of the left channel microphone; and a right channel housing unit that accommodates at least a right channel driver unit outputting a right channel sound, a right channel microphone recording an external sound, and a right channel micro-computer controlling a setting for a noise cancelling processing based on a recording signal of the right channel microphone. The left channel micro-computer and the right channel micro-computer are configured to communicate data with each other.Type: ApplicationFiled: January 29, 2015Publication date: August 6, 2015Applicant: Sony CorporationInventors: Noriyuki Ozawa, Osamu Nishida, Naotaka Tsunoda
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Patent number: 9100747Abstract: A signal processing device includes a noise analysis unit for analyzing a frequency component of a noise signal obtained by converting a collected sound into an electrical signal, a plurality of filtering units for carrying out predetermined filtering operations on the noise signal on the basis of an analysis result, and an output control unit for temporally varying a synthesis rate of outputs of the plurality of filtering units according to a change in the analysis result of the noise analysis unit. When the analysis result of the noise analysis unit changes, one filtering unit starts a predetermined filtering operation by characteristics different from those of other filtering units that carry out predetermined filtering operations on the noise signal according to the change in the analysis result of the noise analysis unit.Type: GrantFiled: March 30, 2010Date of Patent: August 4, 2015Assignee: Sony CorporationInventors: Yasunobu Murata, Kohei Asada, Noriyuki Ozawa
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Patent number: 9025799Abstract: A sound reproducing device includes: a plug section configured to receive input of L-channel and R-channel audio signals; an L-channel housing section including at least an L-channel driver unit configured to produce sound on the basis of the L-channel audio signal, an L-channel microphone configured to collect external sound, and an L-channel microcomputer configured to perform setting control on noise-canceling processing on the basis of a collected sound signal of the microphone; an R-channel housing section including a same corresponding configuration as those of the L-channel housing section; and an in-cord housing section formed so as to be inserted in a wiring cord for supplying the signals inputted from the plug section to the L-channel and the R-channel housing sections, wherein the in-cord housing section is provided with a communication terminal for allowing data communication between the L-channel microcomputer and the R-channel microcomputer, and an external apparatus.Type: GrantFiled: August 2, 2012Date of Patent: May 5, 2015Assignee: Sony CorporationInventors: Noriyuki Ozawa, Kazuhisa Kito, Kohei Asada, Naotaka Tsunoda
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Patent number: 8976987Abstract: There is provided a sound reproduction device including a left channel housing unit that accommodates at least a left channel driver unit outputting a left channel sound, a left channel microphone recording an external sound, and a left channel micro-computer controlling a setting for a noise cancelling processing based on a recording signal of the left channel microphone; and a right channel housing unit that accommodates at least a right channel driver unit outputting a right channel sound, a right channel microphone recording an external sound, and a right channel micro-computer controlling a setting for a noise cancelling processing based on a recording signal of the right channel microphone. The left channel micro-computer and the right channel micro-computer are configured to communicate data with each other.Type: GrantFiled: July 30, 2012Date of Patent: March 10, 2015Assignee: Sony CorporationInventors: Noriyuki Ozawa, Osamu Nishida, Naotaka Tsunoda
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Publication number: 20130051561Abstract: There is provided a sound reproduction device including a left channel housing unit that accommodates at least a left channel driver unit outputting a left channel sound, a left channel microphone recording an external sound, and a left channel micro-computer controlling a setting for a noise cancelling processing based on a recording signal of the left channel microphone; and a right channel housing unit that accommodates at least a right channel driver unit outputting a right channel sound, a right channel microphone recording an external sound, and a right channel micro-computer controlling a setting for a noise cancelling processing based on a recording signal of the right channel microphone. The left channel micro-computer and the right channel micro-computer are configured to communicate data with each other.Type: ApplicationFiled: July 30, 2012Publication date: February 28, 2013Applicant: Sony CorporationInventors: Noriyuki Ozawa, Osamu Nishida, Naotaka Tsunoda
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Publication number: 20130051562Abstract: A sound reproducing device includes: a plug section configured to receive input of L-channel and R-channel audio signals; an L-channel housing section including at least an L-channel driver unit configured to produce sound on the basis of the L-channel audio signal, an L-channel microphone configured to collect external sound, and an L-channel microcomputer configured to perform setting control on noise-canceling processing on the basis of a collected sound signal of the microphone; an R-channel housing section including a same corresponding configuration as those of the L-channel housing section; and an in-cord housing section formed so as to be inserted in a wiring cord for supplying the signals inputted from the plug section to the L-channel and the R-channel housing sections, wherein the in-cord housing section is provided with a communication terminal for allowing data communication between the L-channel microcomputer and the R-channel microcomputer, and an external apparatus.Type: ApplicationFiled: August 2, 2012Publication date: February 28, 2013Applicant: Sony CorporationInventors: Noriyuki Ozawa, Kazuhisa Kito, Kohei Asada, Naotaka Tsunoda
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Patent number: 8218782Abstract: A headphone device includes: a sound reproduction unit having a diaphragm which is configured to perform sound reproduction based on a sound signal; a sound pickup unit configured to perform a sound pickup operation; a filtering unit configured to apply filtering to a picked-up sound signal obtained by the sound pickup unit, to give a noise-cancelling signal characteristic; a combining unit configured to combine the picked-up sound signal that has undergone filtering, and a listening sound signal which is inputted separately, to generate a sound signal supplied to the sound reproduction unit; and an abnormality determination unit configured to determine occurrence or non-occurrence of an abnormal sound, on the basis of a result of level detection of a sound signal obtained within a sound signal processing system that includes the filtering unit and the combining unit and is formed between the sound pickup unit and the sound reproduction unit.Type: GrantFiled: March 24, 2009Date of Patent: July 10, 2012Assignee: Sony CorporationInventors: Kohei Asada, Tetsunori Itabashi, Noriyuki Ozawa
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Publication number: 20120033827Abstract: A signal processing device includes a noise analysis unit for analyzing a frequency component of a noise signal obtained by converting a collected sound into an electrical signal, a plurality of filtering units for carrying out predetermined filtering operations on the noise signal on the basis of an analysis result, and an output control unit for temporally varying a synthesis rate of outputs of the plurality of filtering units according to a change in the analysis result of the noise analysis unit. When the analysis result of the noise analysis unit changes, one filtering unit starts a predetermined filtering operation by characteristics different from those of other filtering units that carry out predetermined filtering operations on the noise signal according to the change in the analysis result of the noise analysis unit.Type: ApplicationFiled: March 30, 2010Publication date: February 9, 2012Applicant: Sony CorporationInventors: Yasunobu Murata, Kohei Asada, Noriyuki Ozawa
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Patent number: 8107637Abstract: A signal processing device includes: a filter processing unit configured to execute noise reduction operations by subjecting sound-collected signals from a sound-collecting unit to filtering processing based on preset filter properties and providing with signal properties for noise reduction; a noise-unreduced signal obtaining unit configured to obtain noise-unreduced signals obtained in a state where noise reduction operations by the filter processing unit are stopped; and a filter property selecting unit configured to obtain a difference between the noise-unreduced signals and noise-reduced signals obtained at the time of executing noise reduction operations with preset filter properties set to the filter processing unit as a candidate filter property, thereby obtaining a noise reduction effect indicator regarding the candidate filter property, and selecting filter properties to be set to the filter processing unit based on the noise reduction effect indicator.Type: GrantFiled: April 29, 2009Date of Patent: January 31, 2012Assignee: Sony CorporationInventors: Kohei Asada, Tetsunori Itabashi, Noriyuki Ozawa
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Publication number: 20090279709Abstract: A signal processing device includes: a filter processing unit configured to execute noise reduction operations by subjecting sound-collected signals from a sound-collecting unit to filtering processing based on preset filter properties and providing with signal properties for noise reduction; a noise-unreduced signal obtaining unit configured to obtain noise-unreduced signals obtained in a state where noise reduction operations by the filter processing unit are stopped; and a filter property selecting unit configured to obtain a difference between the noise-unreduced signals and noise-reduced signals obtained at the time of executing noise reduction operations with preset filter properties set to the filter processing unit as a candidate filter property, thereby obtaining a noise reduction effect indicator regarding the candidate filter property, and selecting filter properties to be set to the filter processing unit based on the noise reduction effect indicator.Type: ApplicationFiled: April 29, 2009Publication date: November 12, 2009Applicant: Sony CorporationInventors: Kohei Asada, Tetsunori Itabashi, Noriyuki Ozawa
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Publication number: 20090245529Abstract: A headphone device includes: a sound reproduction unit having a diaphragm which is configured to perform sound reproduction based on a sound signal; a sound pickup unit configured to perform a sound pickup operation; a filtering unit configured to apply filtering to a picked-up sound signal obtained by the sound pickup unit, to give a noise-cancelling signal characteristic; a combining unit configured to combine the picked-up sound signal that has undergone filtering, and a listening sound signal which is inputted separately, to generate a sound signal supplied to the sound reproduction unit; and an abnormality determination unit configured to determine occurrence or non-occurrence of an abnormal sound, on the basis of a result of level detection of a sound signal obtained within a sound signal processing system that includes the filtering unit and the combining unit and is formed between the sound pickup unit and the sound reproduction unit.Type: ApplicationFiled: March 24, 2009Publication date: October 1, 2009Applicant: Sony CorporationInventors: Kohei Asada, Tetsunori Itabashi, Noriyuki Ozawa
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Patent number: 5567825Abstract: The improvement proposed in the invention consists in the use of, as a reaction solvent in the reaction of a 1,3,5-trialkyl-2-halogenobenzene and an alkali metal salt of 3-mercapto-1H-1,2,4-triazole in the presence of a copper catalyst for the preparation of a 3-(2,4,6-trialkylphenylthio)-1H-1,2,4-triazole useful as an intermediate in the preparation of herbicide compounds, a compound represented by the general formula ##STR1## in which R is a lower alkyl group, Y is a methylene group or an N-(lower alkyl)imino group and Z is a divalent hydrocarbon group to form a 5-membered ring or 6-membered ring together with the group --N--CO--Y--, such as N-methyl-2-pyrrolidone, N,N'-dimethyl-2-imidazolidinone and N,N'-dimethyl propylene urea, so as to obtain the product in a high yield without the danger of explosion.Type: GrantFiled: December 22, 1995Date of Patent: October 22, 1996Assignees: Chugai Seiyaku Kabushiki Kaisha, Ihara Chemical Industry Co., Ltd.Inventors: Hideo Ohi, Noriyuki Ozawa
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Patent number: 5319132Abstract: The present invention provides a process for producing a halomethyl ester of an aliphatic carboxylic acid in which a metal salt of an aliphatic carboxylic acid is reacted with a dihalomethane in the presence of a phase transfer catalyst, whereby the efficient production of a halomethyl ester of an aliphatic carboxylic acid has been made possible without the formation of a halomethyl ether as a by-product. The bis compound bis[aliphatic carbonyloxy)methane], which is obtained as a by-product, is hydrolyzed to enable the quantitative recovery of an aliphatic carboxylic acid and its reuse. Thus, the present process is preferable as a process for industrial production of a halomethyl ester of an aliphatic carboxylic acid.Type: GrantFiled: June 15, 1993Date of Patent: June 7, 1994Assignee: Ihara Chemical Industry Co., Ltd.Inventors: Noriyuki Ozawa, Naoto Yazawa