Patents by Inventor Futoshi Tomitsuka

Futoshi Tomitsuka 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).

  • Electronic device
    Patent number: 9218076
    Abstract: An electronic device includes a display and a proximity sensor arranged near a display surface of the display and configured to provide an output signal corresponding to a degree of proximity of an object to the display surface, and provides a position of the approaching object in a direction horizontal to the display surface. A user interface control unit has a first operational mode and a second operational mode, where in the first operation mode, the proximity of a user's hand from the display surface is monitored based on the output signal of the proximity sensor. In the second operational mode, a position of the user's hand in a direction horizontal to the display surface is detected within a detection target range and a user's operation is accepted according to the detected position of the user's hand.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: December 22, 2015
    Assignee: ALPINE ELECTRONICS, INC.
    Inventors: Osamu Nagahara, Futoshi Tomitsuka
  • ELECTRONIC DEVICE
    Publication number: 20130265248
    Abstract: An electronic device includes a display and a proximity sensor arranged near a display surface of the display and configured to provide an output signal corresponding to a degree of proximity of an object to the display surface, and provides a position of the approaching object in a direction horizontal to the display surface. A user interface control unit has a first operational mode and a second operational mode, where in the first operation mode, the proximity of a user's hand from the display surface is monitored based on the output signal of the proximity sensor. In the second operational mode, a position of the user's hand in a direction horizontal to the display surface is detected within a detection target range and a user's operation is accepted according to the detected position of the user's hand.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 10, 2013
    Applicant: Alpine Electronics, Inc.
    Inventors: Osamu Nagahara, Futoshi Tomitsuka
  • Data communication system, data communication method, and communication unit
    Patent number: 7133947
    Abstract: A master provides a byte length of a frame in a certain position of the frame. The master also provides an error detection code in the final byte. After sending the final byte, the master monitors whether or not a negative acknowledgement is received. If a negative acknowledgment is received, the master transmits a dummy byte and then sends a stop condition. A slave counts the number of received bytes and compares the number of received bytes with the byte length of the frame. If the number of received bytes is larger than the byte length of the frame, the slave recognizes negative acknowledgement.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: November 7, 2006
    Assignee: Alpine Electronics, Inc.
    Inventors: Futoshi Tomitsuka, Takashi Miyake
  • Data communication system, data communication method, and communication unit
    Publication number: 20050080944
    Abstract: A master provides a byte length of a frame in a certain position of the frame. The master also provides an error detection code in the final byte. After sending the final byte, the master monitors whether or not a negative acknowledgement is received. If a negative acknowledgment is received, the master transmits a dummy byte and then sends a stop condition. A slave counts the number of received bytes and compares the number of received bytes with the byte length of the frame. If the number of received bytes is larger than the byte length of the frame, the slave recognizes negative acknowledgement.
    Type: Application
    Filed: August 31, 2004
    Publication date: April 14, 2005
    Inventors: Futoshi Tomitsuka, Takashi Miyake