Patents by Inventor Masao Gibo

Masao Gibo 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).

  • Speaker system having a front speaker integrated with a reflection-type surround speaker
    Patent number: 7362874
    Abstract: A surround speaker system according to the present invention includes an integral speaker in which a surround speaker is integrally formed with a front speaker, a canceling device for canceling a directly propagating sound of the surround speaker, and a reflective device for reflecting the output sound of the surround speaker.
    Type: Grant
    Filed: December 21, 2003
    Date of Patent: April 22, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin Sub Lee, Takashi Ohyaba, Masao Gibo, Hyeon Goo Yoon
  • Audio power amplifying apparatus and method
    Patent number: 7123730
    Abstract: An audio power amplifying apparatus includes first through B-th power amplifying terminals, each of which power-amplifies an input alternating current (AC) audio input signal input and outputs the power amplified result as an audio output signal. A preamplifier of a b-th amplifying terminal divides the audio input signal into positive and negative portions to preamplify the positive and negative portions. A power supply supplies first through M-th positive and negative voltages having different levels. A power amplifier selects a positive supply voltage having a level proportional to a level of the preamplified positive portion and a negative supply voltage having a level proportional to a level of the preamplified negative portion and again amplifies the preamplified positive and negative portions using the selected positive and negative supply voltages to be combined by a signal synthesizer as the audio output signal.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: October 17, 2006
    Assignee: Bluetek Co., Ltd.
    Inventors: Masao Gibo, Won-suk Son
  • Speaker system having a front speaker integrated with a reflection-type surround speaker
    Publication number: 20040136553
    Abstract: A surround speaker system according to the present invention includes an integral speaker in which a surround speaker is integrally formed with a front speaker, a canceling device for canceling a directly propagating sound of the surround speaker, and a reflective device for reflecting the output sound of the surround speaker.
    Type: Application
    Filed: December 21, 2003
    Publication date: July 15, 2004
    Applicant: Bluetek Co., Ltd.
    Inventors: Jin Sub Lee, Takashi Ohyaba, Masao Gibo, Hyeon Goo Yoon
  • Audio power amplifying apparatus and method
    Publication number: 20020159609
    Abstract: An audio power amplifying apparatus includes first through B-th power amplifying terminals, each of which power-amplifies an input alternating current (AC) audio input signal input and outputs the power amplified result as an audio output signal. A preamplifier of a b-th amplifying terminal divides the audio input signal into positive and negative portions to preamplify the positive and negative portions. A power supply supplies first through M-th positive and negative voltages having different levels.
    Type: Application
    Filed: January 10, 2002
    Publication date: October 31, 2002
    Inventors: Masao Gibo, Won-suk Son