Patents by Inventor Norikatsu Chiba
Norikatsu Chiba 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: 9282397Abstract: According to one embodiment, an acoustic signal corrector includes: an output module; a selection receiver; and a holder. The output module is configured to output a plurality of acoustic signals. Amplitude values of frequencies within a frequency band of each of the acoustic signals are emphasized as emphasized amplitude values. A plurality of amplitude values among the emphasized amplitude values are corrected as corrected amplitude values at some of frequencies within the frequency band. Resonance is possibly induced in the frequency band by sealing an ear canal. The selection receiver is configured to receive a selection of one of the acoustic signals output by the output module. The holder is configured to hold, as a configuration for sound quality correction, a configuration corresponding to the correction of the one of the acoustic signals at the some of the frequencies.Type: GrantFiled: September 8, 2011Date of Patent: March 8, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Norikatsu Chiba, Kimio Miseki
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Publication number: 20150024732Abstract: According to one embodiment, an electronic device including a display configured to display video, a speech reproduction module configured to reproduce speech, a reception module configured to receive a notification of an incoming call to a connected call-capable device, and a controller configured to cause the display to display receipt of the incoming call when the reception module receives the notification of the incoming call to the call-capable device.Type: ApplicationFiled: April 9, 2014Publication date: January 22, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Joji Yamashita, Yu Onodera, Fumihiko Murakami, Norikatsu Chiba, Kazuki Kuwahara
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Patent number: 8577051Abstract: According to one embodiment, a sound signal compensation apparatus includes an input module, a compensation module, and an output module. The input module receives identification information identifying a first frequency with regard to a resonance of an ear closed by an earphone or headphone. The compensation module performs first compensation emphasizing a second frequency on a sound signal, the second frequency being determined based on the identification information or the first frequency. The output module outputs the compensated sound signal. The compensation module is configured to perform the first compensation emphasizing the second frequency, at which emphasis is greater than or equal to 2 dB and less than or equal to 12 dB.Type: GrantFiled: April 25, 2011Date of Patent: November 5, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Kimio Miseki, Norikatsu Chiba, Yasuhiro Kanishima
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Patent number: 8488807Abstract: An audio signal compensation device includes: a signal processor configured to perform filtering on an input audio signal; a filter coefficients storage module configured to store a plurality of filter coefficients; a user interface configured to provide options for a determination of filter coefficients to a user and to obtain a selection result from the user; and a filter coefficients determining module configured to determine a set of filter coefficients among the plurality of filter coefficients based on the selection result.Type: GrantFiled: December 8, 2010Date of Patent: July 16, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Norikatsu Chiba, Kimio Miseki, Yasuhiro Kanishima, Kazuyuki Saito, Toshifumi Yamamoto, Takashi Fukuda
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Patent number: 8331604Abstract: According to one embodiment, A microphone-earphone includes a speaker connected to an acoustic device configured to measure acoustic characteristics of a listener's external auditory canal, and configured to output an acoustic signal toward the listener's external auditory canal, a microphone device disposed outside the listener's external auditory canal, an acoustic tube including one end connected to the microphone device and the other end opening to the listener's external auditory canal, and a housing including an opening portion which accommodates the speaker and is so disposed as to guide sound, which is output from the speaker, to the listener's external auditory canal. An inside diameter of the acoustic tube is less than a diameter of the opening portion.Type: GrantFiled: January 26, 2010Date of Patent: December 11, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Kazuyuki Saito, Toshifumi Yamamoto, Norikatsu Chiba, Yasuhiro Kanishima, Takashi Fukuda
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Patent number: 8280062Abstract: According to one embodiment, a sound corrector includes a signal outputter, a response signal, a frequency specifier, a coefficient specifier, a filter, and an outputter. The signal outputter outputs a measurement signal to measure acoustical properties of an object to be measured. The response signal receiver receives a response signal from the object in response to the measurement signal. The frequency specifier specifies a resonant frequency at a resonance peak from the response signal. The coefficient specifier specifies a correction coefficient of a correction filter for reducing the resonant frequency based on the specified resonant frequency. The filter performs filtering on a signal to be output to the object using the correction filter with the correction coefficient. The outputter outputs the signal having undergone the filtering to the object.Type: GrantFiled: August 4, 2009Date of Patent: October 2, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Fukuda, Toshifumi Yamamoto, Norikatsu Chiba, Shigeyasu Iwata, Yasuhiro Kanishima, Kazuyuki Saito, Yutaka Oki
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Patent number: 8238568Abstract: According to one embodiment, an acoustic signal compensator includes an acoustic signal receiving module, a compensator, and an output module. The acoustic signal receiving module receives an acoustic signal. The compensator performs compensation on the acoustic signal, as compensation of acoustic characteristics of an ear including an ear canal having a first-order resonance characteristic and a second-order resonance characteristic, to suppress a first-order frequency of ear resonance and a second-order frequency lower than double of the first-order frequency. The output module outputs the acoustic signal compensated by the compensator.Type: GrantFiled: September 22, 2010Date of Patent: August 7, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Kimio Miseki, Norikatsu Chiba, Yasuhiro Kanishima
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Publication number: 20120063612Abstract: According to one embodiment, an acoustic signal corrector includes: an output module; a selection receiver; and a holder. The output module is configured to output a plurality of acoustic signals. Amplitude values of frequencies within a frequency band of each of the acoustic signals are emphasized as emphasized amplitude values. A plurality of amplitude values among the emphasized amplitude values are corrected as corrected amplitude values at some of frequencies within the frequency band. Resonance is possibly induced in the frequency band by sealing an ear canal. The selection receiver is configured to receive a selection of one of the acoustic signals output by the output module. The holder is configured to hold, as a configuration for sound quality correction, a configuration corresponding to the correction of the one of the acoustic signals at the some of the frequencies.Type: ApplicationFiled: September 8, 2011Publication date: March 15, 2012Inventors: Norikatsu Chiba, Kimio Miseki
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Patent number: 8050421Abstract: According to one embodiment, an acoustic correction apparatus includes: a signal obtaining module configured to obtain an acoustic signal from a target space including an object and an external space; a signal output module configured to output to the target space a measurement signal; a coefficient identifying module configured to identify, on the basis of a response acoustic signal, a correction coefficient of a correction filter that reduces a resonance frequency component of a resonance in the object; a filtering module configured to use the correction filter, and filter the signal provided to the object; a noise cancelling module configured to remove, on the basis of the acoustic signal, a noise component comprised in the acoustic signal from the filtered signal; and an output module configured to output the acoustic signal, from which the noise component is removed by the noise cancelling module, to the object.Type: GrantFiled: May 7, 2010Date of Patent: November 1, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Fukuda, Toshifumi Yamamoto, Norikatsu Chiba, Yasuhiro Kanishima, Kazuyuki Saito
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Publication number: 20110261971Abstract: According to one embodiment, a sound signal compensation apparatus includes an input module, a compensation module, and an output module. The input module receives identification information identifying a first frequency with regard to a resonance of an ear closed by an earphone or headphone. The compensation module performs first compensation emphasizing a second frequency on a sound signal, the second frequency being determined based on the identification information or the first frequency. The output module outputs the compensated sound signal. The compensation module is configured to perform the first compensation emphasizing the second frequency, at which emphasis is greater than or equal to 2 dB and less than or equal to 12 dB.Type: ApplicationFiled: April 25, 2011Publication date: October 27, 2011Inventors: Kimio MISEKI, Norikatsu CHIBA, Yasuhiro KANISHIMA
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Publication number: 20110206220Abstract: According to one embodiment, an acoustic signal corrector includes: an output module; a selection receiver; and a holder. The output module is configured to output a plurality of acoustic signals. Amplitude values of frequencies within a frequency band of each of the acoustic signals are emphasized as emphasized amplitude values. A plurality of amplitude values among the emphasized amplitude values are corrected as corrected amplitude values at some of frequencies within the frequency band. Resonance is possibly induced in the frequency band by sealing an ear canal. The selection receiver is configured to receive a selection of one of the acoustic signals output by the output module. The holder is configured to hold, as a configuration for sound quality correction, a configuration corresponding to the correction of the one of the acoustic signals at the some of the frequencies.Type: ApplicationFiled: November 18, 2010Publication date: August 25, 2011Inventors: Norikatsu Chiba, Kimio Miseki
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Publication number: 20110170700Abstract: According to one embodiment, an acoustic signal compensator includes an acoustic signal receiving module, a compensator, and an output module. The acoustic signal receiving module receives an acoustic signal. The compensator performs compensation on the acoustic signal, as compensation of acoustic characteristics of an ear including an ear canal having a first-order resonance characteristic and a second-order resonance characteristic, to suppress a first-order frequency of ear resonance and a second-order frequency lower than double of the first-order frequency. The output module outputs the acoustic signal compensated by the compensator.Type: ApplicationFiled: September 22, 2010Publication date: July 14, 2011Inventors: Kimio Miseki, Norikatsu Chiba, Yasuhiro Kanishima
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Publication number: 20110158427Abstract: An audio signal compensation device includes: a signal processor configured to perform filtering on an input audio signal; a filter coefficients storage module configured to store a plurality of filter coefficients; a user interface configured to provide options for a determination of filter coefficients to a user and to obtain a selection result from the user; and a filter coefficients determining module configured to determine a set of filter coefficients among the plurality of filter coefficients based on the selection result.Type: ApplicationFiled: December 8, 2010Publication date: June 30, 2011Inventors: Norikatsu Chiba, Kimio Miseki, Yasuhiro Kanishima, Kazuyuki Saito, Toshifumi Yamamoto, Takashi Fukuda
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Patent number: 7957549Abstract: According to one embodiment, an acoustic apparatus comprises an electro-acoustic transducer with a first function of converting an electric signal to an acoustic signal and a second function of converting an acoustic signal to an electric signal, the electro-acoustic transducer configured to convert a measuring electric signal to a measuring acoustic signal using the first function, and to convert an acoustic response signal responding to the measuring acoustic signal from an object to an electric response signal using the second function, a switch configured to switch the first function to the second function, or vice versa, and a switch controller configured to control a function switching of the switch in accordance with a sound source signal.Type: GrantFiled: December 9, 2009Date of Patent: June 7, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Norikatsu Chiba, Toshifumi Yamamoto, Takashi Fukuda, Yasuhiro Kanishima, Shigeyasu Iwata, Kazuyuki Saito, Yutaka Oki
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Patent number: 7953229Abstract: According to one embodiment, a sound processor includes a creating module, a filter, and a combining module. The creating module creates a plurality of first acoustic models based on a frequency characteristic that represents an acoustic property of an object to be measured. The first acoustic models are modeled with respect to resonance properties that vary depending on frequency bands. The filter extracts frequency components in the frequency bands from the respective first acoustic models. The combining module combines the frequency components extracted from the first acoustic models to create a second acoustic model.Type: GrantFiled: August 18, 2009Date of Patent: May 31, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Kazuyuki Saito, Toshifumi Yamamoto, Norikatsu Chiba, Shigeyasu Iwata, Yasuhiro Kanishima, Takashi Fukuda, Yutaka Oki
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Patent number: 7937650Abstract: According to one embodiment, a maximum likelihood decoder includes a branch metric calculator, a processor configured to perform addition, comparison, and selection of an output from the branch metric calculator and a path metric memory, and outputs a selection signal for identifying a selection result, a path memory configured to store a time variation of the selection signal, and a path detection module configured to detect a decoding signal based on the time variation of the stored selection signal. A decoding method includes selecting operation modes of at least one of the branch metric calculator, the processor, and the path memory between a first operation mode in which an operation is performed at a channel rate frequency and a second operation mode in which an operation is performed at a specific frequency lower than the channel rate frequency.Type: GrantFiled: June 4, 2009Date of Patent: May 3, 2011Assignee: Kabushiki Kaisha ToshibaInventor: Norikatsu Chiba
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Patent number: 7907737Abstract: According to one embodiment, an acoustic apparatus comprises a measuring signal generator, a transducer configured to convert a measuring signal to a measuring sound and to convert a characteristic vibration of the transducer due to the measuring sound, to a characteristic vibration signal, an analysis module configured to analyze the characteristic vibration signal in order to output a physical quality of a characteristic vibration of the transducer, a controller configured to set a first state in which the transducer converts an electric signal to an acoustic signal or a second state in which the transducer converts an acoustic signal to an electric signal. The measuring signal generator is connected to the transducer in the first state and the analysis module is connected to the transducer in the second state.Type: GrantFiled: December 11, 2009Date of Patent: March 15, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Yasuhiro Kanishima, Toshifumi Yamamoto, Norikatsu Chiba, Shigeyasu Iwata, Kazuyuki Saito, Takashi Fukuda, Yutaka Oki
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Patent number: 7877024Abstract: According to one embodiment, an infrared signal decode circuit includes: a comparator; a correlation signal generator generating a sum of a first detection signal and a second detection signal as a correlation signal, the first detection signal being obtained by performing an absolute value calculation on a first correlation signal, the second detection signal being obtained by performing an absolute value calculation on a second correlation signal, the first correlation signal corresponding to a correlation between a binary signal and a first reference signal with a frequency substantially identical to a base frequency of a subcarrier of an infrared signal, the second correlation signal corresponding to a correlation between the binary signal and a second reference signal with a phase that differ from a phase of the first reference signal by 90 degrees; and a decoder binarizing the correlation signal generated by the correlation signal generator.Type: GrantFiled: November 18, 2009Date of Patent: January 25, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Norikatsu Chiba, Toshifumi Yamamoto, Shigeyasu Iwata
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Publication number: 20100329481Abstract: According to one embodiment, an acoustic correction apparatus includes: a signal obtaining module configured to obtain an acoustic signal from a target space including an object and an external space; a signal output module configured to output to the target space a measurement signal; a coefficient identifying module configured to identify, on the basis of a response acoustic signal, a correction coefficient of a correction filter that reduces a resonance frequency component of a resonance in the object; a filtering module configured to use the correction filter, and filter the signal provided to the object; a noise cancelling module configured to remove, on the basis of the acoustic signal, a noise component comprised in the acoustic signal from the filtered signal; and an output module configured to output the acoustic signal, from which the noise component is removed by the noise cancelling module, to the object.Type: ApplicationFiled: May 7, 2010Publication date: December 30, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Takashi FUKUDA, Toshifumi YAMAMOTO, Norikatsu CHIBA, Yasuhiro KANISHIMA, Kazuyuki SAITO
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Publication number: 20100316225Abstract: According to one embodiment, A microphone-earphone includes a speaker connected to an acoustic device configured to measure acoustic characteristics of a listener's external auditory canal, and configured to output an acoustic signal toward the listener's external auditory canal, a microphone device disposed outside the listener's external auditory canal, an acoustic tube including one end connected to the microphone device and the other end opening to the listener's external auditory canal, and a housing including an opening portion which accommodates the speaker and is so disposed as to guide sound, which is output from the speaker, to the listener's external auditory canal. An inside diameter of the acoustic tube is less than a diameter of the opening portion.Type: ApplicationFiled: January 26, 2010Publication date: December 16, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kazuyuki SAITO, Toshifumi YAMAMOTO, Norikatsu CHIBA, Yasuhiro KANISHIMA, Takashi FUKUDA