Patents by Inventor Tomohiro Esaki

Tomohiro Esaki 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: 7177960
    Abstract: To display a horizontally oblong movie on a vertically oblong display portion, the movie may be displayed with being rotated 90 degrees by a CPU while the display portion is held in an orientation where the display portion is wider than tall. Since this arrangement puts a heavy load on the CPU, the mobile terminal according to the invention is adapted to implement the movie rotation by processings in the display portion. More specifically, an image memory in the display portion has a foursquare figure each side of which has a length the same as a longer side of a display panel of the display portion. A picture data is written on the memory in the same direction as a direction in which the picture data is read out to be transferred to the panel by the driver portion, and the driver portion rotates the picture data when transferring it.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: February 13, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Kazuyuki Takizawa, Tomohiro Esaki
  • Publication number: 20060268016
    Abstract: To display a horizontally oblong movie on a vertically oblong display portion, the movie may be displayed with being rotated 90 degrees by a CPU while the display portion is held in an orientation where the display portion is wider than tall. Since this arrangement puts a heavy load on the CPU, the mobile terminal according to the invention is adapted to implement the movie rotation by processings in the display portion. More specifically, an image memory in the display portion has a foursquare figure each side of which has a length the same as a longer side of a display panel of the display portion. A picture data is written on the memory in the same direction as a direction in which the picture data is read out to be transferred to the panel by the driver portion, and the driver portion rotates the picture data when transferring it.
    Type: Application
    Filed: August 7, 2006
    Publication date: November 30, 2006
    Applicant: Hitachi, Ltd.
    Inventors: Kazuyuki Takizawa, Tomohiro Esaki
  • Publication number: 20050181838
    Abstract: A portable mobile unit for alerting on incoming of a signal by a ringing sound, comprises: a ringing sound generator for generating the ringing sound in a plurality of patterns; and a controller for controlling operations of the portable mobile unit, wherein the controller select one pattern from the a plurality of patterns based on conditions which are set up in advance, when the signal comes in, so as to control the ringing sound generator to generate the ringing sound for alerting a user of the incoming call, thereby providing the portable mobile unit being superior in the usability, with which various conditions can be grasped by means of change in the ringing sound when the telephone call comes in, while achieving the discrimination of the ringing sound for alerting of the incoming call.
    Type: Application
    Filed: April 1, 2005
    Publication date: August 18, 2005
    Applicant: Hitachi, Ltd
    Inventors: Masayuki Matsuda, Tomohiro Esaki, Kazuyuki Takizawa, Akio Shinagawa, Chikako Takada
  • Patent number: 6928306
    Abstract: A portable mobile unit for alerting on incoming of a signal by a ringing sound, comprises: a ringing sound generator for generating the ringing sound in a plurality of patterns; and a controller for controlling operations of the portable mobile unit, wherein the controller select one pattern from the a plurality of patterns based on conditions which are set up in advance, when the signal comes in, so as to control the ringing sound generator to generate the ringing sound for alerting a user of the incoming call, thereby providing the portable mobile unit being superior in the usability, with which various conditions can be grasped by means of change in the ringing sound when the telephone call comes in, while achieving the discrimination of the ringing sound for alerting of the incoming call.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: August 9, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Masayuki Matsuda, Tomohiro Esaki, Kazuyuki Takizawa, Akio Shinagawa, Chikako Takada
  • Publication number: 20040252139
    Abstract: To display a horizontally oblong movie on a vertically oblong display portion, the movie may be displayed with being rotated 90 degrees by a CPU while the display portion is held in an orientation where the display portion is wider than tall. Since this arrangement puts a heavy load on the CPU, the mobile terminal according to the invention is adapted to implement the movie rotation by processings in the display portion. More specifically, an image memory in the display portion has a foursquare figure each side of which has a length the same as a longer side of a display panel of the display portion. A picture data is written on the memory in the same direction as a direction in which the picture data is read out to be transferred to the panel by the driver portion, and the driver portion rotates the picture data when transferring it.
    Type: Application
    Filed: March 31, 2004
    Publication date: December 16, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Kazuyuki Takizawa, Tomohiro Esaki
  • Patent number: 6285982
    Abstract: A sound decompressing apparatus which achieves special reproducing, also known as trick play, two examples of which are forward search reproducing and reverse search reproducing, by selecting and decompressing frames containing sound data at fixed or predetermined intervals. The apparatus may adjust the output level of reproduced sounds during special reproducing.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: September 4, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Tutomu Imai, Junji Shiokawa, Tomohiro Esaki
  • Publication number: 20010014616
    Abstract: A portable mobile unit for alerting on incoming of a signal by a ringing sound, comprises: a ringing sound generator for generating the ringing sound in a plurality of patterns; and a controller for controlling operations of the portable mobile unit, wherein the controller select one pattern from the a plurality of patterns based on conditions which are set up in advance, when the signal comes in, so as to control the ringing sound generator to generate the ringing sound for alerting a user of the incoming call, thereby providing the portable mobile unit being superior in the usability, with which various conditions can be grasped by means of change in the ringing sound when the telephone call comes in, while achieving the discrimination of the ringing sound for alerting of the incoming call.
    Type: Application
    Filed: January 4, 2001
    Publication date: August 16, 2001
    Inventors: Masayuki Matsuda, Tomohiro Esaki, Kazuyuki Takizawa, Akio Shinagawa, Chikako Takada
  • Patent number: 5754629
    Abstract: A schedule management system which can display a schedule on a screen and enables the user to enter schedule topics promptly and accurately without performing complicated operation is provided. An external voice is input through a microphone or a network control unit and is converted into a digital signal by an A/D converter and a coder. An identifier related to the digital signal is generated. The identifier is displayed on a schedule on a display unit. The digital signal is stored in a memory in relation to the identifier. A user specifies the displayed identifier through an operation section, whereby the digital signal related to the identifier is extracted from the memory by a CPU, the extracted digital signal is converted into an analog signal by a D/A converter, and the analog signal is output as a voice through a loudspeaker or the network control unit to the outside. Like a voice, an image can also be handled.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: May 19, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Yoshihiko Kunimori, Toshio Kamimura, Tomochika Ozaki, Takao Iwatani, Tadashi Kuwabara, Michihiro Mese, Tomohiro Esaki
  • Patent number: 5740369
    Abstract: A transmitting management apparatus transmits information having an identification number corresponding to a portable information terminal to which information is to be delivered and/or having a sorting code identifying the information. The portable information terminal receiving the transmitted information selectively acquires and stores proper information by referring to the identification number and/or the sorting code of the received information, and displays the proper information on a display means.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 14, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Tooru Yokozawa, Hiroshi Shimizu, Wataru Kitayama, Hidefumi Goto, Tadashi Kuwabara, Tomohiro Esaki, Yoshihiro Yamada
  • Patent number: 5361047
    Abstract: A .pi./4 shift QPSK modulator for receiving digital signals and for outputting a modulated signal therefrom in accordance with each of the inputted digital signals. The .pi./4 QPSK modulator is utilized in a communication apparatus and includes a counter for counting the number of the inputted digital signals, a phase information arithmetic unit for receiving a value of an output from the counter and a value of each of the inputted digital signals for outputting phase information of the signal to be modulated, an arithmetic unit for performing an arithmetic operation on values representing an impulse response of the output phase information from the phase information arithmetic unit and outputting impulse response values in accordance therewith, and an accumulating unit for accumulating impulse response values outputted from the arithmetic unit and for performing an arithmetic operation for enabling generation of a .pi./4 shift QPSK modulated signal.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: November 1, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Yasuaki Takahara, Tomohiro Esaki, Shigeyuki Sudo, Teiji Okamoto
  • Patent number: 5131032
    Abstract: An echo canceller and a communication apparatus employing the same, are capable of stably reproducing sounds other than a received sound during a speech through a telephone and the received sound is heard by the other party to the speech. The echo canceller includes first and second input terminals and first and second output terminals. An echo path between the first output terminal and the second input signal terminal is adaptively estimated. A signal component inputted through the echo path is cancelled from a signal inputted to the second input terminal. The canceller further includes a signal mixing means for mixing a plurality of signals inputted thereto.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: July 14, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Tomohiro Esaki, Yoshihiro Ohta