Patents by Inventor Kazuhumi Gotou

Kazuhumi Gotou 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: 6311047
    Abstract: A gain control circuit controls the gain of a variable-gain amplifier for amplifying a radio-frequency signal having at least one of a plurality of predetermined transmission rates is controlled. A received signal level is detected from a received signal amplified by the variable-gain amplifier and a transmission rate of the received signal is determined. Then, the gain of the variable-gain amplifier is controlled depending on a gain control adjusting signal produced based on the received signal level and the transmission rate of the received signal.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: October 30, 2001
    Assignee: NEC Corporation
    Inventor: Kazuhumi Gotou
  • Patent number: 6028529
    Abstract: A radio selective call receiver includes a time-of-day clock, a radio system, a control processor including a decoder, and a CPU which controls the operations thereof including time correction of the time-of-day clock. The control processor controls the activating timing of the CPU by controlling the main clock signal. When the radio system does not perform a receiving operation, the CPU is activated to perform the time correction based on received time information. When the radio system is performing the receiving operation, the CPU waits until the receiving operation is completed and is then activated to perform the time correction based on the time information and a waiting time.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: February 22, 2000
    Assignee: NEC Corporation
    Inventor: Kazuhumi Gotou
  • Patent number: 6020828
    Abstract: A selective call receiver includes a memory storing a plurality of icons which are associated with different pieces of objective information, respectively. When a received message includes the icon designation data and a message, an abstract icon corresponding to the icon designation data is displayed at a predetermined place on screen together with the message. A user may assign objective information to respective ones of the abstract icons.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: February 1, 2000
    Assignee: NEC Corporation
    Inventor: Kazuhumi Gotou