Patents by Inventor Kazuhiro Ishigaya
Kazuhiro Ishigaya 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).
-
Patent number: 10887644Abstract: The present technology relates to a reception device, data processing method, and a program which make it possible to smoothly switch the output of data in a case where data transmitted via different transmission paths is received to be output. A reception device includes: a reception unit that receives a plurality of pieces of data separately transmitted via different transmission paths and given time stamps corresponding to each other; an output control unit that selects data to be output from among the plurality of pieces of data and controls a timing of outputting the selected data on the basis of the time stamp of a piece of data having a latest time stamp among the plurality of pieces of data; and an accumulation unit that accumulates at least the plurality of pieces of data given the time stamps later than the time stamp of the data that has been output from among the received plurality of pieces of data.Type: GrantFiled: August 18, 2016Date of Patent: January 5, 2021Assignee: Sony CorporationInventors: Michito Ishii, Shinji Negishi, Kazuhiro Ishigaya, Takehito Watanabe, Yasuyuki Chaki, Noriaki Ooishi
-
Patent number: 10750233Abstract: The present technology relates to a recording apparatus, a recording method, and a program capable of avoiding a buffer overflow at the time of reproduction. Each packet is separated from a packet string, and information indicating an arrival timing of each packet is output. The packet is divided into divided packets having a size which does not cause a buffer overflow, and a packet arrival time of each divided packet is embedded in a header of the divided packet. The present technology is applied to the recording apparatus.Type: GrantFiled: August 12, 2016Date of Patent: August 18, 2020Assignee: Sony CorporationInventors: Shinji Negishi, Michito Ishii, Kazuhiro Ishigaya, Takehito Watanabe, Noriaki Ooishi, Yasuyuki Chaki
-
Patent number: 10652608Abstract: A receiving apparatus and method, and a transmitting apparatus, and method capable of improving a reproduction quality in a state where a packet loss occurs. The transmitting apparatus including a memory and an electronic processor communicatively connected to the memory. The electronic processor is configured to encode a data unit, generate a data packet by packetizing the data unit that is encoded, generate a time information packet by packetizing information indicating a decode and a display time relative to the data unit, and generate a stream by multiplexing the data packet, the time information packet, and identification information to identify the data unit.Type: GrantFiled: September 2, 2016Date of Patent: May 12, 2020Assignee: Sony CorporationInventors: Kazuhiro Ishigaya, Shinji Negishi, Noriaki Ooishi
-
Patent number: 10594437Abstract: The present disclosure relates to a receiving apparatus and a method therefor which are capable of decreasing a processing load and efficiently improving reproduction quality. A packet accumulating unit stores packets and packet type, and another packet information. A statistics information accumulating unit accumulates statistics information (e.g., an error ratio, performance (processing condition) of the receiving apparatus, a condition of a stream, and a condition of a buffer). A packet-correcting-method selecting unit selects a packet correcting method from a packet correction table generated in accordance with the packet information and packet identification/statistics information from the statistics information accumulating unit, and supplies a packet to be corrected to a packet correcting unit in a case where the packet in process is determined to be a target of correction. For example, the present disclosure can be applied to a communication system that transmits and receives data.Type: GrantFiled: September 23, 2016Date of Patent: March 17, 2020Assignee: SONY CORPORATIONInventors: Kazuhiro Ishigaya, Shinji Negishi, Michito Ishii, Takehito Watanabe, Yasuyuki Chaki, Noriaki Ooishi
-
Patent number: 10567852Abstract: The present technology relates to a transmission device, a transmission method, a reception device, a reception method, and a program that allow to make a change dynamically in time stamps which are already transmitted. The transmission device transmits time stamps in a same MPU in which a change is made from already transmitted time stamps so that the time stamps can be received before decoding is started. When the time stamps in the same MPU including the change are received, the reception device updates the time stamps in a time stamp memory and can dynamically change the time stamps since decoding is performed according to the updated time stamps. The present technology can be applied to the transmission device and the reception device.Type: GrantFiled: July 7, 2016Date of Patent: February 18, 2020Assignee: Sony CorporationInventors: Shinji Negishi, Takehito Watanabe, Kazuhiro Ishigaya
-
Patent number: 10531136Abstract: A device, method, and program for data stream reproduction are disclosed. In one example, a transmission device includes a multiplexer that generates a data stream by multiplexing a data packet and a control information packet separately from each other, the data packet being a packet including reproduction data as the current data to be reproduced, the control information packet being a packet including control information to be used in reproducing the reproduction data. The multiplexer multiplexes a first packet in a position behind the position located a predetermined first number of packets before a second packet among multiplexing-enabled positions in which the control information packet can be multiplexed in the data stream, the first packet being the control information packet including the control information corresponding to a predetermined processing unit of the reproduction data, the second packet being the data packet including the processing unit.Type: GrantFiled: June 10, 2016Date of Patent: January 7, 2020Assignee: Sony CorporationInventors: Shinji Negishi, Kazuhiro Ishigaya, Michito Ishii, Takehito Watanabe, Noriaki Ooishi, Yasuyuki Chaki
-
Publication number: 20190230420Abstract: The present technology relates to a transmission device, a transmission method, a reception device, a reception method, and a program that allow to make a change dynamically in time stamps which are already transmitted. The transmission device transmits time stamps in a same MPU in which a change is made from already transmitted time stamps so that the time stamps can be received before decoding is started. When the time stamps in the same MPU including the change are received, the reception device updates the time stamps in a time stamp memory and can dynamically change the time stamps since decoding is performed according to the updated time stamps. The present technology can be applied to the transmission device and the reception device.Type: ApplicationFiled: July 7, 2016Publication date: July 25, 2019Inventors: Shinji Negishi, Takehito Watanabe, Kazuhiro Ishigaya
-
Publication number: 20180248653Abstract: The present disclosure relates to a receiving apparatus and a method therefor which are capable of decreasing a processing load and efficiently improving reproduction quality. A packet accumulating unit stores packets and packet type, and another packet information. A statistics information accumulating unit accumulates statistics information (e.g., an error ratio, performance (processing condition) of the receiving apparatus, a condition of a stream, and a condition of a buffer). A packet-correcting-method selecting unit selects a packet correcting method from a packet correction table generated in accordance with the packet information and packet identification/statistics information from the statistics information accumulating unit, and supplies a packet to be corrected to a packet correcting unit in a case where the packet in process is determined to be a target of correction. For example, the present disclosure can be applied to a communication system that transmits and receives data.Type: ApplicationFiled: September 23, 2016Publication date: August 30, 2018Inventors: KAZUHIRO ISHIGAYA, SHINJI NEGISHI, MICHITO ISHII, TAKEHITO WATANABE, YASUYUKI CHAKI, NORIAKI OOISHI
-
Publication number: 20180242035Abstract: The present technology relates to a reception device, data processing method, and a program which make it possible to smoothly switch the output of data in a case where data transmitted via different transmission paths is received to be output. A reception device includes: a reception unit that receives a plurality of pieces of data separately transmitted via different transmission paths and given time stamps corresponding to each other; an output control unit that selects data to be output from among the plurality of pieces of data and controls a timing of outputting the selected data on the basis of the time stamp of a piece of data having a latest time stamp among the plurality of pieces of data; and an accumulation unit that accumulates at least the plurality of pieces of data given the time stamps later than the time stamp of the data that has been output from among the received plurality of pieces of data.Type: ApplicationFiled: August 18, 2016Publication date: August 23, 2018Inventors: Michito Ishii, Shinji Negishi, Kazuhiro Ishigaya, Takehito Watanabe, Yasuyuki Chaki, Noriaki Ooishi
-
Publication number: 20180227622Abstract: The present disclosure relates to a receiving apparatus and method, and a transmitting apparatus, and method capable of improving a reproduction quality in a state where a packet loss occurs. In a MMTP packet header, in a case where extension_flag=1 in the sixth row from the top is satisfied, a configuration is defined in which description regarding an extension header can be made in the 16th to 22nd rows. As a method 1, this is used to newly define a type of an AU sequence number in extension_type, and the AU sequence number included in the MMTP packet is described in header_extension_byte. The present disclosure is applied to, for example, a communication system that transmits and receives data by using a transmission method used for IP transmission.Type: ApplicationFiled: September 2, 2016Publication date: August 9, 2018Inventors: Kazuhiro Ishigaya, Shinji Negishi, Noriaki Ooishi
-
Publication number: 20180220182Abstract: The present technology relates to a recording apparatus, a recording method, and a program capable of avoiding a buffer overflow at the time of reproduction. Each packet is separated from a packet string, and information indicating an arrival timing of each packet is output. The packet is divided into divided packets having a size which does not cause a buffer overflow, and a packet arrival time of each divided packet is embedded in a header of the divided packet. The present technology is applied to the recording apparatus.Type: ApplicationFiled: August 12, 2016Publication date: August 2, 2018Inventors: Shinji Negishi, Michito Ishii, Kazuhiro Ishigaya, Takehito Watanabe, Noriaki Ooishi, Yasuyuki Chaki
-
Publication number: 20180139474Abstract: A device, method, and program for data stream reproduction are disclosed. In one example, a transmission device includes a multiplexer that generates a data stream by multiplexing a data packet and a control information packet separately from each other, the data packet being a packet including reproduction data as the current data to be reproduced, the control information packet being a packet including control information to be used in reproducing the reproduction data. The multiplexer multiplexes a first packet in a position behind the position located a predetermined first number of packets before a second packet among multiplexing-enabled positions in which the control information packet can be multiplexed in the data stream, the first packet being the control information packet including the control information corresponding to a predetermined processing unit of the reproduction data, the second packet being the data packet including the processing unit.Type: ApplicationFiled: June 10, 2016Publication date: May 17, 2018Inventors: Shinji Negishi, Kazuhiro Ishigaya, Michito Ishii, Takehito Watanabe, Noriaki Ooishi, Yasuyuki Chaki
-
Patent number: 8625924Abstract: An image processing apparatus capable of improving image quality, includes a deblocking filter that adjusts a plurality of parameters related to deblocking processing on the basis of activity of an image calculated by an activity calculation section, the total sum of orthogonal transformation coefficients of the image calculated by an orthogonal transformation section, complexity of the image calculated by the rate control unit, or the total sum of prediction errors of the image calculated by a prediction error addition unit.Type: GrantFiled: July 13, 2007Date of Patent: January 7, 2014Assignee: Sony CorporationInventors: Junichi Tanaka, Kazushi Sato, Yoichi Yagasaki, Kazuhiro Ishigaya
-
Publication number: 20090263032Abstract: The present invention relates to an image processing apparatus, method, and program that are capable of improving image quality. A deblocking filter 113 adjusts the value of disable_deblocking_filter_idc, slice_alpha_c0_offset_div2, or slice_beta_offset_div2 on the basis of Activity of an image calculated by an activity calculation section 141, the total sum of orthogonal transformation coefficients of the image calculated by an orthogonal transformation section 142, Complexity of the image calculated by the rate control unit 119, or the total sum of prediction errors of the image calculated by a prediction error addition unit 120. The present invention is applicable to an encoding apparatus.Type: ApplicationFiled: July 13, 2007Publication date: October 22, 2009Inventors: Junichi Tanaka, Kazushi Sato, Yoichi Yagasaki, Kazuhiro Ishigaya