Patents by Inventor Takamori OOKAWA

Takamori OOKAWA 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 and communication system
    Patent number: 10305672
    Abstract: A communication system includes a master node and one more slave nodes connected via a transmission line. The master node is configured to output a first PWM signal having a shorter low level time and a second PWM signal having a longer low level time. The slave node is configured to output the second PWM signal when detecting a high to low signal level change on the transmission line. The master node detects a time delay as measured from when an input signal to a transmission buffer falls to when an output signal from a reception buffer falls. The time delay is an index value used to change the low level time of the first PWM signal when the time delay is equal to or less than a preset value.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: May 28, 2019
    Assignee: DENSO CORPORATION
    Inventors: Naoji Kaneko, Takamori Ookawa
  • COMMUNICATION DEVICE AND COMMUNICATION SYSTEM
    Publication number: 20190052451
    Abstract: A communication system includes a master node and one more slave nodes connected via a transmission line. The master node is configured to output a first PWM signal having a shorter low level time and a second PWM signal having a longer low level time. The slave node is configured to output the second PWM signal when detecting a high to low signal level change on the transmission line. The master node detects a time delay as measured from when an input signal to a transmission buffer falls to when an output signal from a reception buffer falls. The time delay is an index value used to change the low level time of the first PWM signal when the time delay is equal to or less than a preset value.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 14, 2019
    Inventors: Naoji KANEKO, Takamori OOKAWA