Patents by Inventor Tooru Kawase
Tooru Kawase 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: 8305300Abstract: The method for driving a plasma display panel effects control of the sub-fields in a manner that at least one sub-filed carries out, in its initializing period, an all-cell initializing operation on the discharge cells and the plurality of sub-fields other than the aforementioned sub-field selectively carry out an addressing operation in each discharge cell; at the same time, two or more predetermined sub-fields carry out an addressing operation only when at least one sub-field had an addressing operation after the all-cells initializing operation; and an unusual-charge erase period, where scan electrodes SC-SCn undergo application of voltage with a rectangular waveform, is provided after the initializing period of at least one sub-field of the predetermined sub-fields.Type: GrantFiled: February 26, 2007Date of Patent: November 6, 2012Assignee: Panasonic CorporationInventors: Kunihiro Mima, Kosuke Makino, Tooru Kawase
-
Patent number: 8013808Abstract: A panel driving method has, in one filed time period, an all-cell initializing subfield for causing initializing discharge in all discharge cells for displaying an image in the initializing period, and a selection initializing subfield for selectively causing initializing discharge in the discharge cell that has caused sustaining discharge in the last subfield in the initializing period. The number of all-cell initializing subfields can be increased and decreased, and the initializing voltage for causing initializing discharge in the all-cell initializing subfield can be varied. At least one of the number of all-cell initializing subfields and the initializing voltage of the all-cell initializing subfields in one field is controlled based on the accumulation of the panel power-on time.Type: GrantFiled: February 20, 2007Date of Patent: September 6, 2011Assignee: Panasonic CorporationInventors: Minoru Takeda, Shigeo Kigo, Takeru Yamashita, Tooru Kawase
-
Publication number: 20110148951Abstract: A plasma display panel driving method is provided in which one field of an image signal includes a plurality of sub fields each having an initialization period, an address period and a sustain period, one field period includes an all-cell initialization sub field in which an initializing discharge is generated by applying an initialization voltage to all the discharge cells to display the image in the initialization period, the initialization voltage can be varied, and the initialization voltage when an image satisfying predetermined conditions is displayed is set to be lower than an initialization voltage when an image satisfying no predetermined conditions is displayed.Type: ApplicationFiled: February 28, 2011Publication date: June 23, 2011Applicant: PANASONIC CORPORATIONInventors: Minoru TAKEDA, Shigeo KIGO, Tooru KAWASE, Hironari TANIGUCHI
-
Publication number: 20090207161Abstract: The method for driving a plasma display panel effects control of the sub-fields in a manner that at least one sub-filed carries out, in its initializing period, an all-cell initializing operation on the discharge cells and the plurality of sub-fields other than the aforementioned sub-field selectively carry out an addressing operation in each discharge cell; at the same time, two or more predetermined sub-fields carry out an addressing operation only when at least one sub-field had an addressing operation after the all-cells initializing operation; and an unusual-charge erase period, where scan electrodes SC-SCn undergo application of voltage with a rectangular waveform, is provided after the initializing period of at least one sub-field of the predetermined sub-fields.Type: ApplicationFiled: February 26, 2007Publication date: August 20, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Kunihiro Mima, Kosuke Makino, Tooru Kawase
-
Publication number: 20090128542Abstract: A plasma display panel driving method is provided in which one field of an image signal includes a plurality of sub fields each having an initialization period, an address period and a sustain period, one field period includes an all-cell initialization sub field in which an initializing discharge is generated by applying an initialization voltage to all the discharge cells to display the image in the initialization period, the initialization voltage can be varied, and the initialization voltage when an image satisfying predetermined conditions is displayed is set to be lower than an initialization voltage when an image satisfying no predetermined conditions is displayed.Type: ApplicationFiled: February 20, 2007Publication date: May 21, 2009Inventors: Minoru Takeda, Shigeo Kigo, Tooru Kawase, Hironari Taniguchi
-
Publication number: 20090021452Abstract: A panel driving method has, in one filed time period, an all-cell initializing subfield for causing initializing discharge in all discharge cells for displaying an image in the initializing period, and a selection initializing subfield for selectively causing initializing discharge in the discharge cell that has caused sustaining discharge in the last subfield in the initializing period. The number of all-cell initializing subfields can be increased and decreased, and the initializing voltage for causing initializing discharge in the all-cell initializing subfield can be varied. At least one of the number of all-cell initializing subfields and the initializing voltage of the all-cell initializing subfields in one field is controlled based on the accumulation of the panel power-on time.Type: ApplicationFiled: February 20, 2007Publication date: January 22, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Minoru Takeda, Shigeo Kigo, Takeru Yamashita, Tooru Kawase
-
Patent number: 4258683Abstract: To determine an optimum spark advance angle for activation of a spark plug, memory means is provided to previously store a data indicating a plurality of optimum spark advance angles for activation of the spark plug in relation to each amount of air sucked into an engine and each rotation speed of an output shaft of the engine, thereby to simplify construction of the control apparatus.Type: GrantFiled: April 10, 1978Date of Patent: March 31, 1981Assignees: Nippon Soken, Inc., Toyota Jidosha Kogyo Kabushiki KaishaInventors: Tadashi Hattori, Mamoru Kobashi, Tooru Kawase, Yoshiki Ueno
-
Patent number: 4225925Abstract: To determine an optimum advance angle for activation of a spark plug in relation to an amount of air sucked into an engine, an electronic ignition control method and apparatus comprises a calculation circuit to calculate a linear equation representing a relationship between the optimum advance angle of activation of the spark plug and the amount of the sucked air in consideration with rotation speed of an output shaft of the engine, thereby to simplify the calculation.Type: GrantFiled: March 24, 1978Date of Patent: September 30, 1980Assignees: Nippon Soken, Inc., Toyota Jidosha Kogyo Kabushiki KaishaInventors: Tadashi Hattori, Mamoru Kobashi, Tooru Kawase, Yoshiki Ueno
-
Patent number: 4196705Abstract: In an electronic ignition control apparatus for a combustion engine, a first memory is provided to store a data indicating a first parameter in relation to rotation speed of the engine to read out a value of the first parameter in accordance with an instant rotation speed of the engine, the first parameter defining an ascent of a linear equation representing a relationship between an optimum period of time for spark advance and an amount of air sucked into the engine in consideration with the rotation speed, and a second memory is provided to store a data indicating a second parameter in relation to the rotation speed to read out a value of the second parameter in accordance with the instant rotation speed, the second parameter defining an ordinates' intersection of the linear equation.Type: GrantFiled: May 19, 1978Date of Patent: April 8, 1980Assignees: Nippon Soken, Inc., Toyota Jidosha Kogyo Kabushiki KaishaInventors: Tadashi Hattori, Mamoru Kobashi, Tooru Kawase, Yoshiki Ueno