Patents by Inventor Naoshi Kayashima
Naoshi Kayashima 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: 10839532Abstract: An information processing apparatus includes a processor that detects positions of ball candidates from a plurality of time-series image frames. The processor adds a position of a second ball candidate to a second image frame subsequent to a first image frame based on a position of a first ball candidate and movement definition information. The first ball candidate is detected from the first image frame. The movement definition information defines a characteristic of a movement of a ball. The processor generates a plurality of trajectory candidates by combining a plurality of ball candidates detected from image frames of different times. The processor evaluates the plurality of trajectory candidates to determine a ball trajectory. The processor interpolates, when the ball trajectory is interrupted, between a starting point and an ending point of the interruption with a trajectory of a first person who moves from the starting point to the ending point.Type: GrantFiled: October 22, 2018Date of Patent: November 17, 2020Assignee: FUJITSU LIMITEDInventors: Takaya Yamamoto, Daisuke Abe, Kazuo Sasaki, Mari Iwasaki, Kenji Orita, Naoshi Kayashima
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Publication number: 20190147604Abstract: An information processing apparatus includes a processor that detects positions of ball candidates from a plurality of time-series image frames. The processor adds a position of a second ball candidate to a second image frame subsequent to a first image frame based on a position of a first ball candidate and movement definition information. The first ball candidate is detected from the first image frame. The movement definition information defines a characteristic of a movement of a ball. The processor generates a plurality of trajectory candidates by combining a plurality of ball candidates detected from image frames of different times. The processor evaluates the plurality of trajectory candidates to determine a ball trajectory. The processor interpolates, when the ball trajectory is interrupted, between a starting point and an ending point of the interruption with a trajectory of a first person who moves from the starting point to the ending point.Type: ApplicationFiled: October 22, 2018Publication date: May 16, 2019Applicant: FUJITSU LIMITEDInventors: Takaya YAMAMOTO, DAISUKE ABE, KAZUO SASAKI, Mari Iwasaki, Kenji Orita, Naoshi Kayashima
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Patent number: 8938095Abstract: A verification device 101 receives extracted and sanitized data 113 that has been sanitized to protect the privacy of person A. The verification device 101, extracts from among MCU-hash storage data 123 and for MCU1 and MCU2 among MCUs obtained by dividing the extracted and sanitized data 113, an MCU1 hash and an MCU2 hash. The verification device 101 generates an MCU3 hash to an MCU6 hash and from the MCU1 hash to the MCU6 hash, generates a JPEG frame hash 125. The verification device 101 then compares a JPEG hash 121 and the JPEG hash 125 to verify the authenticity of the extracted and sanitized data 113.Type: GrantFiled: October 22, 2012Date of Patent: January 20, 2015Assignee: Fujitsu LimitedInventors: Kiyohide Yamashita, Shuichi Takayama, Naoshi Kayashima, Akira Miyazaki, Hirohisa Naito, Takashi Yoshioka
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Patent number: 8036266Abstract: Each of a plurality of encoders calculates a first time by adding an encoding delay time commonly determined between the encoders to a value of an STC counter, and transmits a system stream generated by including the calculated first time to a decoder associated with the encoder in one-to-one correspondence, of a plurality of decoders constituting a decoding system. Each of the decoders calculates a second time by adding the first time to an estimated maximum value commonly determined between the decoders by adding a decoding delay time to a value of stream fluctuation of an output time occurring between the encoders, and outputs the divided image data decoded from the system stream to a synthesizer that synthesizes the image data at the calculated second time.Type: GrantFiled: October 23, 2007Date of Patent: October 11, 2011Assignee: Fujitsu LimitedInventors: Naoshi Kayashima, Takato Ohashi, Hiroshi Ohtsuru, Naoyuki Takeshita, Kazuhiro Yamashita, Yousuke Yamaguchi, Atsushi Ichiki, Shin Fujita
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Patent number: 7519184Abstract: A small-scale wireless communication system offering advanced security level. An encryption key memory of an access point stores an encryption key list of a plurality of different encryption keys. A change information transmitter periodically transmits change information to a terminal by radio, the change information requesting the change of encryption key. An encryption key selector selects an encryption key from the encryption key list under a rule when the change information transmitter transmits the change information. A terminal-side encryption key memory of the terminal stores a terminal-side encryption key list which is the same as the encryption key list. A change information receiver receives the change information from the access point. Upon reception of the change information, a terminal-side encryption key selector selects an encryption key from the terminal-side encryption key list under a rule which is the same as the rule which the encryption key selector used to select the encryption key.Type: GrantFiled: September 28, 2004Date of Patent: April 14, 2009Assignee: Fujitsu LimitedInventors: Naoshi Kayashima, Yuuji Nagano, Yuji Nomura
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Publication number: 20080152020Abstract: Each of a plurality of encoders calculates a first time by adding an encoding delay time commonly determined between the encoders to a value of an STC counter, and transmits a system stream generated by including the calculated first time to a decoder associated with the encoder in one-to-one correspondence, of a plurality of decoders constituting a decoding system. Each of the decoders calculates a second time by adding the first time to an estimated maximum value commonly determined between the decoders by adding a decoding delay time to a value of stream fluctuation of an output time occurring between the encoders, and outputs the divided image data decoded from the system stream to a synthesizer that synthesizes the image data at the calculated second time.Type: ApplicationFiled: October 23, 2007Publication date: June 26, 2008Applicant: FUJITSU LIMITEDInventors: Naoshi Kayashima, Takato Ohashi, Hiroshi Ohtsuru, Naoyuki Takeshita, Kazuhiro Yamashita, Yousuke Yamaguchi, Atsushi Ichiki, Shin Fujita
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Patent number: 7269418Abstract: A wireless communication apparatus capable of preventing data leakage in wireless communication. A transmitted data frame receiver receives a transmitted data frame which is transmitted from a terminal to the wireless communication apparatus. An address information converter converts the address information of the terminal included in the transmitted data frame, into the address information of the own wireless communication apparatus. A radio transmitter transmits the transmitted data frame by radio. An address information comparator compares the address information included in a received data frame received by a radio receiver, with the address information of wireless communication apparatuses being stored in an address information memory. A received data frame destruction unit destructs the received data frame depending on the comparison result.Type: GrantFiled: September 29, 2004Date of Patent: September 11, 2007Assignee: Fujitsu LimitedInventors: Naoshi Kayashima, Yuuji Nagano, Yuji Nomura
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Publication number: 20050201564Abstract: A small-scale wireless communication system offering advanced security level. An encryption key memory of an access point stores an encryption key list of a plurality of different encryption keys. A change information transmitter periodically transmits change information to a terminal by radio, the change information requesting the change of encryption key. An encryption key selector selects an encryption key from the encryption key list under a rule when the change information transmitter transmits the change information. A terminal-side encryption key memory of the terminal stores a terminal-side encryption key list which is the same as the encryption key list. A change information receiver receives the change information from the access point. Upon reception of the change information, a terminal-side encryption key selector selects an encryption key from the terminal-side encryption key list under a rule which is the same as the rule which the encryption key selector used to select the encryption key.Type: ApplicationFiled: September 28, 2004Publication date: September 15, 2005Inventors: Naoshi Kayashima, Yuuji Nagano, Yuji Nomura
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Publication number: 20050197116Abstract: A wireless communication apparatus capable of preventing data leakage in wireless communication. A transmitted data frame receiver receives a transmitted data frame which is transmitted from a terminal to the wireless communication apparatus. An address information converter converts the address information of the terminal included in the transmitted data frame, into the address information of the own wireless communication apparatus. A radio transmitter transmits the transmitted data frame by radio. An address information comparator compares the address information included in a received data frame received by a radio receiver, with the address information of wireless communication apparatuses being stored in an address information memory. A received data frame destruction unit destructs the received data frame depending on the comparison result.Type: ApplicationFiled: September 29, 2004Publication date: September 8, 2005Inventors: Naoshi Kayashima, Yuuji Nagano, Yuji Nomura
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Publication number: 20050018670Abstract: The present invention provides a method for forwarding frames between Ethernet network nodes in which an output queue is provided for storing frames to be forwarded in the same direction, and more than one frame stored in the output queue are combined into a single frame, and the combined frame is then transmitted to the output port corresponding to that direction. With this configuration, packets encapsulated into a plurality of frames are stored in the output queue during transmission of the previous frames in the same direction or during their inter-frame gaps, and then combined into one packet, the combined packet being encapsulated into one frame to be transmitted. Accordingly, the amount of data that can be transmitted during a certain time period is increased by the amount equivalent to the reduced number of inter-frame gaps compared to when packets encapsulated into a plurality of frames are individually transmitted, thereby achieving more efficient frame forwarding.Type: ApplicationFiled: March 16, 2004Publication date: January 27, 2005Inventors: Miwa Shigematsu, Hiroki Tamura, Takato Ohashi, Naoshi Kayashima, Sayuri Matsuo