Patents by Inventor Yuzo Senda

Yuzo Senda 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).

  • Publication number: 20210029363
    Abstract: A video encoding device for encoding video using inter prediction includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on a minimum inter-PU size (PA) and a CU size (PB) of the CU to be encoded. A video decoding device includes decoding control means for controlling an inter-PU partition of a CU to be decoded, based on the minimum inter-PU size (PA) and the size (PB) of the CU to be decoded.
    Type: Application
    Filed: October 8, 2020
    Publication date: January 28, 2021
    Applicant: NEC CORPORATION
    Inventors: Kenta SENZAKI, Yuzo SENDA, Keiichi CHONO, Hirofumi AOKI
  • Publication number: 20210021835
    Abstract: A video encoding device includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of an encoded image block contained in the image block having the predetermined area. A video decoding device includes decoding control means for controlling an inter-PU partition type of a CU to be decoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of a decoded image block contained in the image block having the predetermined area.
    Type: Application
    Filed: October 1, 2020
    Publication date: January 21, 2021
    Applicant: NEC CORPORATION
    Inventors: Kenta SENZAKI, Yuzo SENDA, Keiichi CHONO, Hirofumi AOKI
  • Publication number: 20200395002
    Abstract: A signal source identification device includes: a feature value calculation unit configured to calculate feature values corresponding to paths where signals from generation sources of the signals transmit, based on signals received by a plurality of sensors; and an identification unit configured to identify whether or not a feature value calculated by the feature value calculation unit is a signal from a predetermined signal source by using an identification range that is a range within which feature values based on signals from the predetermined signal source fall and that is previously determined based on the feature values calculated by the feature value calculation unit.
    Type: Application
    Filed: March 9, 2018
    Publication date: December 17, 2020
    Applicant: NEC Corporation
    Inventors: Reishi KONDO, Yuzo SENDA
  • Publication number: 20200366903
    Abstract: In a video decoding device, a quantization step size decoding unit calculates a quantization step size that controls a granularity of the inverse quantization by, based on an image prediction, selectively using a mean value of at least a quantization step size assigned to a leftwardly adjacent neighboring image block already decoded and a quantization step size assigned to a upwardly adjacent neighboring image block already decoded or a quantization step size assigned to an image block decoded immediately before.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Applicant: NEC CORPORATION
    Inventors: Hirofumi Aoki, Keiichi Chono, Yuzo Senda, Kenta Senzaki
  • Publication number: 20200366904
    Abstract: In a video decoding device, a quantization step size decoding unit calculates a quantization step size that controls a granularity of the inverse quantization by, based on an image prediction, selectively using a mean value of at least a quantization step size assigned to a leftwardly adjacent neighboring image block already decoded and a quantization step size assigned to a upwardly adjacent neighboring image block already decoded or a quantization step size assigned to an image block decoded immediately before.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Applicant: NEC Corporation
    Inventors: Hirofumi Aoki, Keiichi Chono, Yuzo Senda, Kenta Senzaki
  • Publication number: 20200366905
    Abstract: In a video decoding device, a quantization step size decoding unit calculates a quantization step size that controls a granularity of the inverse quantization by, based on an image prediction, selectively using a mean value of at least a quantization step size assigned to a leftwardly adjacent neighboring image block already decoded and a quantization step size assigned to a upwardly adjacent neighboring image block already decoded or a quantization step size assigned to an image block decoded immediately before.
    Type: Application
    Filed: August 4, 2020
    Publication date: November 19, 2020
    Applicant: NEC CORPORATION
    Inventors: Hirofumi AOKI, Keiichi CHONO, Yuzo SENDA, Kenta SENZAKI
  • Patent number: 10841588
    Abstract: A video encoding device includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of an encoded image block contained in the image block having the predetermined area. A video decoding device includes decoding control means for controlling an inter-PU partition type of a CU to be decoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of a decoded image block contained in the image block having the predetermined area.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: November 17, 2020
    Assignee: NEC CORPORATION
    Inventors: Kenta Senzaki, Yuzo Senda, Keiichi Chono, Hirofumi Aoki
  • Patent number: 10841590
    Abstract: A video encoding device for encoding video using inter prediction includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on a minimum inter-PU size (PA) and a CU size (PB) of the CU to be encoded. A video decoding device includes decoding control means for controlling an inter-PU partition of a CU to be decoded, based on the minimum inter-PU size (PA) and the size (PB) of the CU to be decoded.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: November 17, 2020
    Assignee: NEC CORPORATION
    Inventors: Kenta Senzaki, Yuzo Senda, Keiichi Chono, Hirofumi Aoki
  • Publication number: 20200326193
    Abstract: The present disclosure provides an information processing apparatus, a notification method, and a non-transitory computer readable medium that can contribute to relief from congestion in an airport facility. The information processing apparatus includes: an acquisition unit configured to acquire a position of a user and reservation information of an aircraft which the user plans to board; a calculation unit configured to calculate, based on the reservation information, a travel time including a spare time for a scheduled boarding time of the aircraft corresponding to a mode of transportation and a travel route from the position to a scheduled boarding place of the aircraft; and a notification unit configured to notify the user of the travel time corresponding to the mode of transportation and the travel route.
    Type: Application
    Filed: April 14, 2020
    Publication date: October 15, 2020
    Applicant: NEC Corporation
    Inventors: Shigeki SHINODA, Akane ARUGA, Takumi OTANI, Ikumi SAGA, Yuzo SENDA
  • Publication number: 20200322615
    Abstract: A video decoding device and method, including extracting PCM block size information including a threshold, from a bitstream, determining the threshold based on the extracted PCM block size information; parsing a PCM header from the bitstream with respect to an encoded block, only when said encoded block is prediction mode of intra prediction and a block size of said encoded block is equal to or greater than the determined threshold, controlling an entropy decoding process and a PCM decoding process based on the parsed PCM header; parsing transformed data of a prediction error data of an image in the bitstream; and PCM-decoding PCM data of the image in the bitstream, wherein the decoding performs the decoding operation based on the prediction mode being intra prediction and based on the block size of the encoded block being equal to or greater than the determined threshold.
    Type: Application
    Filed: June 24, 2020
    Publication date: October 8, 2020
    Applicant: NEC CORPORATION
    Inventors: Keiichi CHONO, Yuzo SENDA, Junji TAJIME, Hirofumi AOKI, Kenta SENZAKI
  • Patent number: 10771790
    Abstract: In a video decoding device, a quantization step size decoding unit calculates a quantization step size that controls a granularity of the inverse quantization by, based on an image prediction, selectively using a mean value of at least a quantization step size assigned to a leftwardly adjacent neighboring image block already decoded and a quantization step size assigned to a upwardly adjacent neighboring image block already decoded or a quantization step size assigned to an image block decoded immediately before.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: September 8, 2020
    Assignee: NEC CORPORATION
    Inventors: Hirofumi Aoki, Keiichi Chono, Yuzo Senda, Kenta Senzaki
  • Patent number: 10742991
    Abstract: A video encoding device includes: transform means 11 for transforming an image block; entropy encoding means 12 for entropy-encoding transformed data of the image block transformed by the transform means 11; PCM encoding means 13 for PCM-encoding the image block; multiplex data selection means 14 for selecting output data of the entropy encoding means 12 or the PCM encoding means 13, in a block of a block size set from the outside; and multiplexing means 15 for embedding a PCM header in a bitstream, in the block of the set from the outside block size.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: August 11, 2020
    Assignee: NEC CORPORATION
    Inventors: Keiichi Chono, Yuzo Senda, Junji Tajime, Hirofumi Aoki, Kenta Senzaki
  • Patent number: 10650842
    Abstract: A signal detection device 10 includes a compression unit 11 which compresses an activation matrix by adding to each column an element of the row corresponding to a basis mapped to the information of the same acoustic element in an activation matrix computed by non-negative matrix factorization using a basis matrix, using the information of acoustic elements making up an acoustic event, mapped to the basis constituting the basis matrix.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: May 12, 2020
    Assignee: NEC CORPORATION
    Inventors: Tatsuya Komatsu, Yuzo Senda
  • Publication number: 20190335273
    Abstract: A correlation function having a clear peak is generated even in an environment in which an ambient noise level is high. A correlation function generation apparatus (100) includes a plurality of input signal obtaining units (101), a changing unit (102), a cross-spectrum calculator (103), a variance calculator (104), and a correlation function calculator (105). The input signal obtaining unit (101) obtains a wave generated by a wave source as an input signal. The transformer (102) obtains a plurality of frequency domain signals by transforming a plurality of input signals obtained by the plurality of input signal obtaining units. The cross-spectrum calculator (103) calculates a cross-spectrum based on the plurality of frequency domain signals. The variance calculator (104) calculates the variance of the cross-spectrum. The correlation function calculator (105) calculates and generates a correlation function based on the cross-spectrum and the variance.
    Type: Application
    Filed: January 11, 2017
    Publication date: October 31, 2019
    Applicant: NEC Corporation
    Inventors: Masanori KATO, Yuzo SENDA
  • Patent number: 10432934
    Abstract: A video encoding device includes: a quantization step size encoding unit 11 for encoding a quantization step size for controlling quantization granularity; and a quantization step size downsampling unit 12 for downsampling one or more encoded quantization step sizes to generate a quantization step size representative value. The quantization step size encoding unit 11 predicts the quantization step size using the quantization step size representative value.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: October 1, 2019
    Assignee: NEC Corporation
    Inventors: Hirofumi Aoki, Keiichi Chono, Yuzo Senda
  • Publication number: 20190251989
    Abstract: Provided is a processing device capable of, on the basis of data prepared by a recorder that only has recording function, acquiring information related to a time when the data was prepared. The processing device includes an acquisition unit for acquiring the recorded audio data, and an identification unit for detecting a sound signal that is included in the audio data and transmitted from an information transmission device and allows the time at which the signal was recorded to be identified, and identifying the time when other signals included in the audio data were recorded on the basis of the sound signal.
    Type: Application
    Filed: June 21, 2017
    Publication date: August 15, 2019
    Applicant: NEC Corporation
    Inventors: Reishi KONDO, Yuzo SENDA
  • Publication number: 20190250240
    Abstract: The present invention generates a correlation function having a clear peak even in an environment with a high ambient noise level. This correlation function generation device is provided with a plurality of input signal acquisition units for acquiring waves generated by a wave source as input signals, a conversion unit for converting the plurality of input signals acquired by the input signal acquisition units into a plurality of frequency-domain signals, a cross-spectrum calculation unit for calculating a cross spectrum on the basis of the frequency domain signals, frequency-specific cross-spectrum calculation units for calculating cross spectrums for each frequency on the basis of the cross spectrum, and an integrated correlation function calculation unit for calculating an integrated correlation function on the basis of the frequency-specific cross spectrums.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 15, 2019
    Applicant: NEC Corporation
    Inventors: Masanori KATO, Yuzo SENDA
  • Publication number: 20190230366
    Abstract: In a video decoding device, a quantization step size decoding unit calculates a quantization step size that controls a granularity of the inverse quantization by, based on an image prediction, selectively using a mean value of at least a quantization step size assigned to a leftwardly adjacent neighboring image block already decoded and a quantization step size assigned to a upwardly adjacent neighboring image block already decoded or a quantization step size assigned to an image block decoded immediately before.
    Type: Application
    Filed: April 1, 2019
    Publication date: July 25, 2019
    Applicant: NEC Corporation
    Inventors: Hirofumi Aoki, Keiichi Chono, Yuzo Senda, Kenta Senzaki
  • Publication number: 20190219679
    Abstract: A sound signal corresponding to a sound emitted by a sound source is inputted to a frequency analysis unit (101), and the frequency analysis unit (101) performs frequency analysis of the sound signal and generates a spectrogram. Spectrogram template information indicating spectrograms corresponding to each of at least a plurality of predetermined movement speeds, the spectrograms being for cases in which the sound source is moved, is stored in a model storage unit (102). An estimation unit (103) estimates the movement speed of the sound source on the basis of the spectrogram generated by the frequency analysis unit (101) and the plurality of spectrograms indicated by the spectrogram template information stored in the model storage unit (102).
    Type: Application
    Filed: September 5, 2017
    Publication date: July 18, 2019
    Applicant: NEC Corporation
    Inventors: Tatsuya KOMATSU, Yuzo SENDA
  • Publication number: 20190156853
    Abstract: A signal detection device 10 includes a compression unit 11 which compresses an activation matrix by adding to each column an element of the row corresponding to a basis mapped to the information of the same acoustic element in an activation matrix computed by non-negative matrix factorization using a basis matrix, using the information of acoustic elements making up an acoustic event, mapped to the basis constituting the basis matrix.
    Type: Application
    Filed: June 16, 2016
    Publication date: May 23, 2019
    Applicant: NEC Corporation
    Inventors: Tatsuya KOMATSU, Yuzo SENDA