Patents by Inventor Naoya KUMADA

Naoya KUMADA 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).

  • Communication device, communication program, communication method, and information processing device
    Patent number: 9438379
    Abstract: Disclosed is a communication technology in which the effect of packet loss can be easily reduced to the extent that it can be ignored, even on networks where packet loss can easily occur. Specifically, a communication device is disclosed that includes a packet loss determination unit that determines whether a packet that transmits image information has been lost, and an interpolated packet transmission unit that transmits an interpolated packet when a packet that transmits image information has been lost.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: September 6, 2016
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Asako Sakashita, Suzuka Morotomi, Takuro Kaneko, Naoya Kumada, Yukio Yasumoto, Yoshihiko Yagi
  • Communication device, communication program, and communication method
    Patent number: 9402092
    Abstract: Task: To provide communication technology in which clock synchronization accuracy can be easily maintained, even on networks where packets can be easily lost. Resolution Means: A communication device, comprising: a transmission unit that includes a flag processing unit that, upon receipt of one or a plurality of MPEG-2 TS packets, applies flag information to the packets at a predetermined interval in the forward reproduction direction of the packets, and a time stamp application unit that generates MPEG-2 TTS packets by applying a time stamp value calculated using a GPS clock to each of the one or a plurality of MPEG-2 TS packets, including the MPEG-2 TS packets having the flag information applied by the flag processing unit, and transmits the MPEG-2 TTS packets to a transmission path.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: July 26, 2016
    Assignee: Hitachi Information & Telecommunication Engineering, Ltd.
    Inventors: Suzuka Morotomi, Takuro Kaneko, Naoya Kumada, Yukio Yasumoto, Yoshihiko Yagi
  • Communication Device, Communication Program, Communication Method, and Information Processing Device
    Publication number: 20150280864
    Abstract: Disclosed is a communication technology in which the effect of packet loss can be easily reduced to the extent that it can be ignored, even on networks where packet loss can easily occur. Specifically, a communication device is disclosed that includes a packet loss determination unit that determines whether a packet that transmits image information has been lost, and an interpolated packet transmission unit that transmits an interpolated packet when a packet that transmits image information has been lost.
    Type: Application
    Filed: July 30, 2014
    Publication date: October 1, 2015
    Inventors: Asako SAKASHITA, Suzuka MOROTOMI, Takuro KANEKO, Naoya KUMADA, Yukio YASUMOTO, Yoshihiko YAGI
  • Communication Device, Communication Program, and Communication Method
    Publication number: 20150156524
    Abstract: Task: To provide communication technology in which clock synchronization accuracy can be easily maintained, even on networks where packets can be easily lost. Resolution Means: A communication device, comprising: a transmission unit that includes a flag processing unit that, upon receipt of one or a plurality of MPEG-2 TS packets, applies flag information to the packets at a predetermined interval in the forward reproduction direction of the packets, and a time stamp application unit that generates MPEG-2 TTS packets by applying a time stamp value calculated using a GPS clock to each of the one or a plurality of MPEG-2 TS packets, including the MPEG-2 TS packets having the flag information applied by the flag processing unit, and transmits the MPEG-2 TTS packets to a transmission path.
    Type: Application
    Filed: June 27, 2014
    Publication date: June 4, 2015
    Inventors: Suzuka MOROTOMI, Takuro KANEKO, Naoya KUMADA, Yukio YASUMOTO, Yoshihiko YAGI