Patents by Inventor Kentaro Murase
Kentaro Murase 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: 7340067Abstract: The present invention provides wave signal processing systems and methods that estimate a wave source direction and use that information to realize sharp directivity even in the case of a device that is compact or that has limited calculating capacity. A wave signal processing system of the present invention is provided with at least one sensor group made of at least two sensors, determines a difference signal between wave signals detected by any two sensors in at least one of the sensor groups and determines a differential signal of a wave signal detected by at least one sensor, and based on a combination of a sign of the difference signal and a sign of the differential signal and a positional relationship of the sensors, determines the sign of a delay time between the wave signals that are detected by the two sensors and determines the direction of the wave source based on whether the sign of the delay time is positive or negative.Type: GrantFiled: January 21, 2003Date of Patent: March 4, 2008Assignee: Fujitsu LimitedInventors: Kentaro Murase, Takuya Noda, Kazuhiro Watanabe
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Patent number: 7203640Abstract: An input signal is input via an input part. A plurality of signal section candidate detecting parts having different detection algorithms detect an intended signal section candidate and a noise signal section candidate from the input signal. A signal section classifying part is notified of detection results from the respective signal section candidate detecting parts, and classifies the respective signal section candidates based on a combination of the detection results.Type: GrantFiled: October 30, 2002Date of Patent: April 10, 2007Assignee: Fujitsu LimitedInventors: Kentaro Murase, Takuya Noda, Kazuhiro Watanabe
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Publication number: 20060209212Abstract: An information presenting apparatus, based on display status on a screen, estimates text blocks that a user is likely to classify as poor-legibility blocks and is likely to wish to be read aloud. A simple device that allows selecting from the text blocks is provided. A poor-legibility-block extractor divides text to be displayed on the screen into blocks corresponding to individual text blocks, classifies blocks including characters of sizes less than or equal to a predetermined size as poor-legibility blocks, and assigns block numbers to the poor-legibility blocks. A document display unit displays areas of the respective poor-legibility blocks as distinguished from other areas, with block numbers assigned to the respective poor-legibility blocks. When the user presses a numeric key corresponding to a block number, text in the corresponding block is read aloud.Type: ApplicationFiled: July 20, 2005Publication date: September 21, 2006Applicant: FUJITSU LIMITEDInventors: Kentaro Murase, Kazuhiro Watanabe
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Patent number: 7076664Abstract: A user confirmation system using a recording medium capable of storing information includes a biological information obtaining part for obtaining first biological information on a user at a time of first use of a recording medium, an owner registration part for registering the first biological information in the recording medium, considering the user as an owner of the recording medium, and an owner confirmation part for detecting second biological information on a user at a time of second and later use of the recording medium, and determining whether or not the user using the recording medium is identical with the owner registered in the recording medium, based on the first and second biological information.Type: GrantFiled: March 15, 2001Date of Patent: July 11, 2006Assignee: Fujitsu LimitedInventors: Kentaro Murase, Masaki Watanabe
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Patent number: 6686844Abstract: An image sensor, a voice sensor, an auxiliary sensor part (infrared sensor, etc.), a total analyzing part, and an application communicate with each other through data/control signal communication units. Each sensor provides feedback on its signal detection results and control information used by the other sensors for determining a range of a detection target and a detection sensitivity at a time of subsequent signal acquisition, to the other sensors through the communication units. The total analyzing part investigates whether or not there is inconsistency among the results detected by the respective sensors, and provide control information to each sensor. Each sensor determines a range of a signal detection target and a detection sensitivity based on the obtained information, and acquires a signal in accordance with the determination.Type: GrantFiled: January 8, 2003Date of Patent: February 3, 2004Assignee: Fujitsu LimitedInventors: Masaki Watanabe, Kentaro Murase, Takuya Noda, Kazuhiro Watanabe
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Publication number: 20030223591Abstract: The present invention provides wave signal processing systems and methods that estimate a wave source direction and use that information to realize sharp directivity even in the case of a device that is compact or that has limited calculating capacity. A wave signal processing system of the present invention is provided with at least one sensor group made of at least two sensors, determines a difference signal between wave signals detected by any two sensors in at least one of the sensor groups and determines a differential signal of a wave signal detected by at least one sensor, and based on a combination of a sign of the difference signal and a sign of the differential signal and a positional relationship of the sensors, determines the sign of a delay time between the wave signals that are detected by the two sensors and determines the direction of the wave source based on whether the sign of the delay time is positive or negative.Type: ApplicationFiled: January 21, 2003Publication date: December 4, 2003Applicant: FUJITSU LIMITEDInventors: Kentaro Murase, Takuya Noda, Kazuhiro Watanabe
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Publication number: 20030120485Abstract: An input signal is input via an input part. A plurality of signal section candidate detecting parts having different detection algorithms detect an intended signal section candidate and a noise signal section candidate from the input signal. A signal section classifying part is notified of detection results from the respective signal section candidate detecting parts, and classifies the respective signal section candidates based on a combination of the detection results.Type: ApplicationFiled: October 30, 2002Publication date: June 26, 2003Applicant: FUJITSU LIMITEDInventors: Kentaro Murase, Takuya Noda, Kazuhiro Watanabe
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Patent number: 6583723Abstract: An image sensor, a voice sensor, an auxiliary sensor part (infrared sensor, etc.), a total analyzing part, and an application communicate with each other through data/control signal communication units. Each sensor provides feedback on its signal detection results and control information used by the other sensors for determining a range of a detection target and a detection sensitivity at a time of subsequent signal acquisition, to the other sensors through the communication units. The total analyzing part investigates whether or not there is inconsistency among the results detected by the respective sensors, and provide control information to each sensor. Each sensor determines a range of a signal detection target and a detection sensitivity based on the obtained information, and acquires a signal in accordance with the determination.Type: GrantFiled: August 29, 2001Date of Patent: June 24, 2003Assignee: Fujitsu LimitedInventors: Masaki Watanabe, Kentaro Murase, Takuya Noda, Kazuhiro Watanabe
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Publication number: 20030097190Abstract: An image sensor, a voice sensor, an auxiliary sensor part (infrared sensor, etc.), a total analyzing part, and an application communicate with each other through data/control signal communication units. Each sensor provides feedback on its signal detection results and control information used by the other sensors for determining a range of a detection target and a detection sensitivity at a time of subsequent signal acquisition, to the other sensors through the communication units. The total analyzing part investigates whether or not there is inconsistency among the results detected by the respective sensors, and provide control information to each sensor. Each sensor determines a range of a signal detection target and a detection sensitivity based on the obtained information, and acquires a signal in accordance with the determination.Type: ApplicationFiled: January 8, 2003Publication date: May 22, 2003Applicant: FUJITSU LIMITEDInventors: Masaki Watanabe, Kentaro Murase, Takuya Noda, Kazuhiro Watanabe
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Publication number: 20020118232Abstract: An image sensor, a voice sensor, an auxiliary sensor part (infrared sensor, etc.), a total analyzing part, and an application communicate with each other through data/control signal communication units. Each sensor provides feedback on its signal detection results and control information used by the other sensors for determining a range of a detection target and a detection sensitivity at a time of subsequent signal acquisition, to the other sensors through the communication units. The total analyzing part investigates whether or not there is inconsistency among the results detected by the respective sensors, and provide control information to each sensor. Each sensor determines a range of a signal detection target and a detection sensitivity based on the obtained information, and acquires a signal in accordance with the determination.Type: ApplicationFiled: August 29, 2001Publication date: August 29, 2002Applicant: FUJITSU LIMITEDInventors: Masaki Watanabe, Kentaro Murase, Takuya Noda, Kazuhiro Watanabe
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Publication number: 20020046347Abstract: A user confirmation system using a recording medium capable of storing information includes a biological information obtaining part for obtaining first biological information on a user at a time of first use of a recording medium, an owner registration part for registering the first biological information in the recording medium, considering the user as an owner of the recording medium, and an owner confirmation part for detecting second biological information on a user at a time of second and later use of the recording medium, and determining whether or not the user using the recording medium is identical with the owner registered in the recording medium, based on the first and second biological information.Type: ApplicationFiled: March 15, 2001Publication date: April 18, 2002Inventors: Kentaro Murase, Masaki Watanabe