Patents by Inventor Masahiko Mawatari

Masahiko Mawatari 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: 11297277
    Abstract: One embodiment provides a communication device for transmitting a video to an external device through first to third transmission lines, the communication device including: a transmission module configured to transit first color difference information and second color difference information concerned with adjacent two pixels through the first transmission line, to transmit first luminance information concerned with one of the two pixels through the second transmission line, and to transmit second luminance information concerned with the other of the two pixels through the third transmission line.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: April 5, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobuaki Suzuki, Makoto Sato, Masahiko Mawatari
  • Publication number: 20210075991
    Abstract: One embodiment provides a communication device for transmitting a video to an external device through first to third transmission lines, the communication device including: a transmission module configured to transit first color difference information and second color difference information concerned with adjacent two pixels through the first transmission line, to transmit first luminance information concerned with one of the two pixels through the second transmission line, and to transmit second luminance information concerned with the other of the two pixels through the third transmission line.
    Type: Application
    Filed: November 19, 2020
    Publication date: March 11, 2021
    Inventors: Nobuaki Suzuki, Makoto Sato, Masahiko Mawatari
  • Patent number: 10873717
    Abstract: One embodiment provides a communication device for transmitting a video to an external device through first to third transmission lines, the communication device including: a transmission module configured to transmit first color difference information and second color difference information concerned with adjacent two pixels through the first transmission line, to transmit first luminance information concerned with one of the two pixels through the second transmission line, and to transmit second luminance information concerned with the other of the two pixels through the third transmission line.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: December 22, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuaki Suzuki, Makoto Sato, Masahiko Mawatari
  • Publication number: 20190253660
    Abstract: One embodiment provides a communication device for transmitting a video to an external device through first to third transmission lines, the communication device including: a transmission module configured to transmit first color difference information and second color difference information concerned with adjacent two pixels through the first transmission line, to transmit first luminance information concerned with one of the two pixels through the second transmission line, and to transmit second luminance information concerned with the other of the two pixels through the third transmission line.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Inventors: Nobuaki Suzuki, Makoto Sato, Masahiko Mawatari
  • Publication number: 20170272680
    Abstract: One embodiment provides a communication device for transmitting a video to an external device through first to third transmission lines, the communication device including: a transmission module configured to transmit first color difference information and second color difference information concerned with adjacent two pixels through the first transmission line, to transmit first luminance information concerned with one of the two pixels through the second transmission line, and to transmit second luminance information concerned with the other of the two pixels through the third transmission line.
    Type: Application
    Filed: June 7, 2017
    Publication date: September 21, 2017
    Inventors: Nobuaki SUZUKI, Makoto SATO, Masahiko MAWATARI
  • Patent number: 9706151
    Abstract: One embodiment provides a communication device for transmitting a video to an external device through first to third transmission lines, the communication device including: a transmission module configured to transmit first color difference information and second color difference information concerned with adjacent two pixels through the first transmission line, to transmit first luminance information concerned with one of the two pixels through the second transmission line, and to transmit second luminance information concerned with the other of the two pixels through the third transmission line.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: July 11, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobuaki Suzuki, Makoto Sato, Masahiko Mawatari
  • Patent number: 9635303
    Abstract: One embodiment provides a communication device for transmitting a video to an external device through first to third transmission lines, the communication device including: a transmission module configured to transmit first color difference information and second color difference information concerned with adjacent two pixels through the first transmission line, to transmit first luminance information concerned with one of the two pixels through the second transmission line, and to transmit second luminance information concerned with the other of the two pixels through the third transmission line.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: April 25, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobuaki Suzuki, Makoto Sato, Masahiko Mawatari
  • Publication number: 20160094871
    Abstract: The present invention relates to system and method of reading and rewriting EDID in a video transmission system includes a transmitter transmitting a video signal and a receiver receiving the video signal that the transmitter transmitted which are connected to each other through digital interface, the method includes a reading step where the transmitter reads the EDID of the receiver through the digital interface; a first transmitting step where the transmitter transmit the video signal to the receiver on the basis of the EDID which the transmitter read; a second transmitting step where the receiver transmits a first message related to the EDID of the receiver; and a third transmitting step where the receiver transmits a second message related to the EDID of the receiver; wherein the transmitter, which received the first message from the receiver, does not read the EDID of the receiver until the second message is received.
    Type: Application
    Filed: December 8, 2015
    Publication date: March 31, 2016
    Inventors: Nobuaki KABUTO, Takashi DOI, Hideki OHKITA, Masahiko MAWATARI
  • Patent number: 9258602
    Abstract: The present invention relates to system and method of reading and rewriting EDID in a video transmission system includes a transmitter transmitting a video signal and a receiver receiving the video signal that the transmitter transmitted which are connected to each other through digital interface, the method includes a reading step where the transmitter reads the EDID of the receiver through the digital interface; a first transmitting step where the transmitter transmit the video signal to the receiver on the basis of the EDID which the transmitter read; a second transmitting step where the receiver transmits a first message related to the EDID of the receiver; and a third transmitting step where the receiver transmits a second message related to the EDID of the receiver; wherein the transmitter, which received the first message from the receiver, does not read the EDID of the receiver until the second message is received.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: February 9, 2016
    Assignees: Hitachi Maxell, Ltd., Toshiba Corporation
    Inventors: Nobuaki Kabuto, Takashi Doi, Hideki Ohkita, Masahiko Mawatari
  • Patent number: 9237303
    Abstract: A device includes a transmitter that transmits, via an interface comprising first, second, and third transmission channels, video data having a 4:1:1 format to a display device. 4:1:1 represents a ratio of a sampling frequencies of a brightness component, to a first color difference component, to a second color difference component. The first and second color difference components of one pixel in a first horizontal line of a first frame of the video data are allocated and transmitted within two clock cycles of the first transmission channel. Brightness components of four pixels in the first horizontal line are allocated and transmitted within two clock cycles of the second and third transmission channels. The transmitter transmits the video data for all of the pixels of the first horizontal line, and thereafter, sets pixels in a second horizontal line as a target to be transmitted.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: January 12, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuaki Suzuki, Masahiko Mawatari
  • Patent number: 9210351
    Abstract: According to one embodiment, a signal transmission apparatus being AC-coupled with a receiving apparatus through a digital transmission line includes a transmitting module configured to transmit a differential signal based on an encoded bit serial input signal such that a low frequency component of the differential signal to be transmitted is maintained at a constant level when the differential signal based on the encoded bit serial input signal is transmitted to the digital transmission line where the encoded bit serial input signal includes a ratio of the number of logic 1 to the number of logic 0 which is different from 5:5.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: December 8, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuaki Suzuki, Takashi Doi, Masahiko Mawatari
  • Publication number: 20150009404
    Abstract: A device includes a transmitter that transmits, via an interface comprising first, second, and third transmission channels, video data having a 4:1:1 format to a display device. 4:1:1 represents a ratio of a sampling frequencies of a brightness component, to a first color difference component, to a second color difference component. The first and second color difference components of one pixel in a first horizontal line of a first frame of the video data are allocated and transmitted within two clock cycles of the first transmission channel. Brightness components of four pixels in the first horizontal line are allocated and transmitted within two clock cycles of the second and third transmission channels. The transmitter transmits the video data for all of the pixels of the first horizontal line, and thereafter, sets pixels in a second horizontal line as a target to be transmitted.
    Type: Application
    Filed: September 25, 2014
    Publication date: January 8, 2015
    Inventors: Nobuaki Suzuki, Masahiko Mawatari
  • Patent number: 8885102
    Abstract: A device includes a transmitter that transmits, via an interface comprising first, second, and third transmission channels, video data having a 4:1:1 format to a display device. 4:1:1 represents a ratio of a sampling frequencies of a brightness component, to a first color difference component, to a second color difference component. The first and second color difference components of one pixel in a first horizontal line of a first frame of the video data are allocated and transmitted within two clock cycles of the first transmission channel. Brightness components of four pixels in the first horizontal line are allocated and transmitted within two clock cycles of the second and third transmission channels. The transmitter transmits the video data for all of the pixels of the first horizontal line, and thereafter, sets pixels in a second horizontal line as a target to be transmitted.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: November 11, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nobuaki Suzuki, Masahiko Mawatari
  • Patent number: 8799541
    Abstract: According to one embodiment, a transmitter including an AV transmission unit including a first transmission unit which transmits video/audio data according to a method 1, and a second transmission unit which transmits video/audio data according to a method 2, with a clock signal inserted in a data signal, and a communication unit which performs the information communication with the receiver by a predetermined standard signal, a communication channel switch unit which transfers a video clock signal to a clock terminal of an HDMI if the video/audio data is transmitted by the first transmission unit, or transfers a first predetermined standard signal output from the communication unit if the video/audio data is transmitted by the second transmission unit, while the communication channel switch unit transfers a second predetermined standard signal received by an HPD/RSV terminal of the HDMI even in transmission by any of the first and second transmission units.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: August 5, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Doi, Nobuaki Suzuki, Masahiko Mawatari
  • Publication number: 20130308059
    Abstract: According to one embodiment, a signal transmission apparatus being AC-coupled with a receiving apparatus through a digital transmission line includes a transmitting module configured to transmit a differential signal based on an encoded bit serial input signal such that a low frequency component of the differential signal to be transmitted is maintained at a constant level when the differential signal based on the encoded bit serial input signal is transmitted to the digital transmission line where the encoded bit serial input signal includes a ratio of the number of logic 1 to the number of logic 0 which is different from 5:5.
    Type: Application
    Filed: March 8, 2013
    Publication date: November 21, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobuaki Suzuki, Takashi Doi, Masahiko Mawatari
  • Publication number: 20130169882
    Abstract: The present invention relates to system and method of reading and rewriting EDID in a video transmission system includes a transmitter transmitting a video signal and a receiver receiving the video signal that the transmitter transmitted which are connected to each other through digital interface, the method includes a reading step where the transmitter reads the EDID of the receiver through the digital interface; a first transmitting step where the transmitter transmit the video signal to the receiver on the basis of the EDID which the transmitter read; a second transmitting step where the receiver transmits a first message related to the EDID of the receiver; and a third transmitting step where the receiver transmits a second message related to the EDID of the receiver; wherein the transmitter, which received the first message from the receiver, does not read the EDID of the receiver until the second message is received.
    Type: Application
    Filed: November 29, 2012
    Publication date: July 4, 2013
    Inventors: Nobuaki KABUTO, Takashi Doi, Hideki Ohkita, Masahiko Mawatari
  • Publication number: 20130133021
    Abstract: According to one embodiment, video image and audio signals are transmitted to a plurality of electronic devices each having at least one of a video image display function and an audio reproducing function. Information indicating the fact that at least one of a video image and audio has been set in a mute state is acquired from each of the electronic devices. Based on the information, a processing operation is applied to the video image and audio signals supplied to each of the electronic devices.
    Type: Application
    Filed: January 10, 2013
    Publication date: May 23, 2013
    Inventors: Takanobu Mukaide, Masahiko Mawatari
  • Publication number: 20130100244
    Abstract: One embodiment provides a communication device for transmitting a video to an external device through first to third transmission lines, the communication device including: a transmission module configured to transmit first color difference information and second color difference information concerned with adjacent two pixels through the first transmission line, to transmit first luminance information concerned with one of the two pixels through the second transmission line, and to transmit second luminance information concerned with the other of the two pixels through the third transmission line.
    Type: Application
    Filed: August 13, 2012
    Publication date: April 25, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nobuaki SUZUKI, Makoto SATO, Masahiko MAWATARI
  • Patent number: 8375417
    Abstract: According to one embodiment, video image and voice signals are transmitted to a plurality of electronic devices each having at least one of a video image display function and a voice reproducing function. Information indicating the fact that at least one of a video image and a voice has been set in a mute state is acquired from each of the electronic devices. Based on the information, a processing operation is applied to the video image and voice signals supplied to each of the electronic devices.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: February 12, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takanobu Mukaide, Masahiko Mawatari
  • Patent number: 8341661
    Abstract: The present invention relates to system and method of reading and rewriting EDID in a video transmission system includes a transmitter transmitting a video signal and a receiver receiving the video signal that the transmitter transmitted which are connected to each other through digital interface, the method includes a reading step where the transmitter reads the EDID of the receiver through the digital interface; a first transmitting step where the transmitter transmit the video signal to the receiver on the basis of the EDID which the transmitter read; a second transmitting step where the receiver transmits a first message related to the EDID of the receiver; and a third transmitting step where the receiver transmits a second message related to the EDID of the receiver; wherein the transmitter, which received the first message from the receiver, does not read the EDID of the receiver until the second message is received.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: December 25, 2012
    Assignees: Hitachi Consumer Electronics Co., Ltd., Toshiba Corporation
    Inventors: Nobuaki Kabuto, Takashi Doi, Hideki Ohkita, Masahiko Mawatari