Patents by Inventor Isao Takita
Isao Takita 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).
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Patent number: 7904046Abstract: A radio equipment, wherein an attenuator (10) is inserted between antennas (91, 92) and a radio module (2), and output and input sensitivities are raised and lowered simultaneously so as to keep the balance of a radio covering range with an input receiver coverage at a constant, and the antenna (91) and the antenna (92) with attenuator are switched over by a switch (8) to increase and decrease the radio coverage range and input receiver coverage while keeping the balance of the dynamic radio coverage range with the input receiver coverage.Type: GrantFiled: April 16, 2007Date of Patent: March 8, 2011Assignee: Hitachi, Ltd.Inventors: Masaya Umemura, Yukihide Inagaki, Isao Takita, Tsutomu Hara
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Patent number: 7356485Abstract: A system for providing a service through a non-contact communication unit such as a wireless communication unit is disclosed. Specifically, an electronic ticket is communicated between a so-called mobile terminal and the non-contact communication unit equipped in a ticket examiner. The ticket examiner comprises a stocker for storing magnetized slips, roll paper or plastic slips, and a shaper for cutting the magnetized slip or the roll paper into a proper size. The ticket examiner confirms the validity of the electronic ticket for issuing a ticket.Type: GrantFiled: June 15, 2001Date of Patent: April 8, 2008Assignee: Hitachi, Ltd.Inventors: Masaya Umemura, Yukihide Inagaki, Isao Takita, Tsutomu Hara
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Publication number: 20070197182Abstract: A radio equipment, wherein an attenuator (10) is inserted between antennas (91, 92) and a radio module (2), and output and input sensitivities are raised and lowered simultaneously so as to keep the balance of a radio covering range with an input receiver coverage at a constant, and the antenna (91) and the antenna (92) with attenuator are switched over by a switch (8) to increase and decrease the radio coverage range and input receiver coverage while keeping the balance of the dynamic radio coverage range with the input receiver coverage.Type: ApplicationFiled: April 16, 2007Publication date: August 23, 2007Inventors: Masaya Umemura, Yukihide Inagaki, Isao Takita, Tsutomu Hara
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Patent number: 7206561Abstract: A radio equipment, wherein an attenuator (10) is inserted between antennas (91, 92) and a radio module (2), and output and input sensitivities are raised and lowered simultaneously so as to keep the balance of a radio covering range with an input receiver coverage at a constant, and the antenna (91) and the antenna (92) with attenuator are switched over by a switch (8) to increase and decrease the radio coverage range and input receiver coverage while keeping the balance of the dynamic radio coverage range with the input receiver coverage.Type: GrantFiled: October 19, 2001Date of Patent: April 17, 2007Assignee: Hitachi, Ltd.Inventors: Masaya Umemura, Yukihide Inagaki, Isao Takita, Tsutomu Hara
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Publication number: 20060221032Abstract: A dot matrix display system for multiple-tone displays, including a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level voltage generator by which the 8-level applied LC voltages to be applied to the pixels are produced so as to substantially make uniform color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, multiple-tone displays which are uniformly seen by the human eye can be obtained.Type: ApplicationFiled: June 6, 2006Publication date: October 5, 2006Inventors: Naruhiko Kasai, Hiroyuki Mano, Shigeyuki Nishitani, Isao Takita, Kohji Takahashi
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Patent number: 7106289Abstract: A dot matrix display system for multiple-tone displays, including a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level voltage generator by which the 8-level applied LC voltages to be applied to the pixels are produced so as to substantially make uniform color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, multiple-tone displays which are uniformly seen by the human eye can be obtained.Type: GrantFiled: November 17, 2004Date of Patent: September 12, 2006Assignee: Hitachi, Ltd.Inventors: Naruhiko Kasai, Hiroyuki Mano, Shigeyuki Nishitani, Isao Takita, Kohji Takahashi
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Publication number: 20050101360Abstract: A radio equipment, wherein an attenuator (10) is inserted between antennas (91, 92) and a radio module (2), and output and input sensitivities are raised and lowered simultaneously so as to keep the balance of a radio covering range with an input receiver coverage at a constant, and the antenna (91) and the antenna (92) with attenuator are switched over by a switch (8) to increase and decrease the radio coverage range and input receiver coverage while keeping the balance of the dynamic radio coverage range with the input receiver coverage.Type: ApplicationFiled: October 19, 2001Publication date: May 12, 2005Inventors: Masaya Umemura, Yukihide Inagaki, Isao Takita, Tsutomu Hara
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Patent number: 6888525Abstract: A dot matrix display system for multiple-tone displays, including a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level applied LC voltage generator by which the 8-level applied LC voltages to be applied to the pixels are produced so as to substantially make uniform color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, the multiple-tone displays which are uniformly seen by the human eye can be realized.Type: GrantFiled: April 30, 2003Date of Patent: May 3, 2005Assignee: Hitachi, Ltd.Inventors: Naruhiko Kasai, Hiroyuki Mano, Shigeyuki Nishitani, Isao Takita, Kohji Takahashi
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Publication number: 20050062700Abstract: A dot matrix display system for multiple-tone displays, including a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level voltage generator by which the 8-level applied LC voltages to be applied to the pixels are produced so as to substantially make uniform color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, multiple-tone displays which are uniformly seen by the human eye can be obtained.Type: ApplicationFiled: November 17, 2004Publication date: March 24, 2005Inventors: Naruhiko Kasai, Hiroyuki Mano, Shigeyuki Nishitani, Isao Takita, Kohji Takahashi
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Patent number: 6819334Abstract: An information processing apparatus has a processing unit, a memory unit for storing display data processed by the processing unit, a display image rotation engine which is coupled with a buffer memory to sequentially transfer display data to the buffer memory and which responds to a command of predetermined timing for display data update to store the display data stored in the memory unit in read sequence different from write sequence, a display controller for delivering the display data, stored in the buffer memory, in the memory unit by means of the rotation engine to a display device, and a bus for mutually coupling the processing unit, the memory unit, the display controller and the rotation engine.Type: GrantFiled: March 3, 2000Date of Patent: November 16, 2004Assignee: Hitachi, Ltd.Inventors: Toru Owada, Isao Takita, Yasushi Nagai, Kanetoshi Saito, Takuichiro Nakazawa
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Publication number: 20040024878Abstract: In network systems which consist of global network and local network, network device 1 is connected to the global network, and network device 3 is connected to the local network, and network device 2 is connected to both networks. When a network device 1 requests a network device 3 to update a program, a network device 2 which controls the network device 3 temporarily stores the update request and then issues the update request to the network device 3. Upon receiving the update request, the network device 3 shuts down itself and updates the program if the tasks currently running on the network device itself is not important ones. The network device 3, when turned on, also acquires the update request that has been temporarily stored by the network device 2.Type: ApplicationFiled: March 7, 2003Publication date: February 5, 2004Inventors: Yoshinobu Makimoto, Shin?apos;ichi Sawamura, Isao Takita, Hideki Kamimaki
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Patent number: 6675224Abstract: A system which serves both as a host and a device cannot be realized with a single connector due to the constitution of hardware in the prior art. The prior art system only detects the existence of a device and cannot distinguish between a host and a device while a power source is turned on and switch its function. The information processing apparatus of the present invention separates the data lines of a host communication controller and the data lines of a device communication controller and activates the selected controller by means of selecting the data lines of the controllers and means of determining which is connected to a connector, a host or a device.Type: GrantFiled: February 8, 2000Date of Patent: January 6, 2004Assignees: Hitachi, Ltd., Kokusai Electric Co., Ltd.Inventors: Isao Takita, Naoko Iwami, Yoshiaki Eguchi, Shinichi Sawamura, Itaru Nonomura, Toru Owada, Yasushi Nagai, Shinichi Kato
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Publication number: 20030206148Abstract: A dot matrix display system for multiple-tone displays, comprising a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level applied LC voltage generator by which the 8-level voltages to be applied to the pixels are produced so as to substantially uniformalize color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, the multiple-tone displays which are uniformly seen by the human eye can be realized.Type: ApplicationFiled: April 30, 2003Publication date: November 6, 2003Inventors: Naruhiko Kasai, Hiroyuki Mano, Shigeyuki Nishitani, Isao Takita, Kohji Takahashi
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Patent number: 6633273Abstract: An information processing system includes a bus, a display data generating circuit coupled to the bus, and a display apparatus coupled to the bus. The display apparatus includes a display panel capable of displaying a grayscale image in accordance with display data in a form of a plurality of bits for each of a plurality of pixels of a display panel generated by the display data generating circuit, and a signal driver which supplies driving voltages corresponding to the display data to at least a part of the plurality of data lines to display a grayscale image on the display panel. The signal driver includes a display memory which stores the display data, and is embodied in an integrated circuit. The display data generating circuit transfers the display data to the display memory via the bus.Type: GrantFiled: March 22, 2001Date of Patent: October 14, 2003Assignee: Hitachi, Ltd.Inventors: Makiko Ikeda, Tsutomu Furuhashi, Hiroyuki Nitta, Isao Takita, Naruhiko Kasai, Satoru Tsunekawa, Tatsuhiro Inuzuka
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Patent number: 6587088Abstract: A dot matrix display system for multiple-tone displays, including a display device in which pixels are arrayed in a matrix shape, an LC (liquid-crystal) drive signal generator which converts color display data into LC display data, an 8-level data driver which selects one of 8-level voltages in accordance with the LC display data and then delivers the selected voltage, and an 8-level voltage generator by which the 8-level applied LC voltages to be applied to the pixels are produced so as to substantially make uniform color differences between the respectively adjacent tones of the multiple-tone displays. Owing to the substantially uniform color differences between the respectively adjacent tones, multiple-tone displays which are uniformly seen by the human eye can be obtained.Type: GrantFiled: June 25, 2002Date of Patent: July 1, 2003Assignee: Hitachi, Ltd.Inventors: Naruhiko Kasai, Hiroyuki Mano, Shigeyuki Nishitani, Isao Takita, Kohji Takahashi
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Patent number: RE39366Abstract: A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inversion control to the selected gray scale voltage with respect to an inversion reference voltage on the basis of the selected gray scale voltage, an AC switching signal and the inversion reference voltage, and for outputting different liquid crystal supply voltages for one and the same display data to a liquid crystal panel.Type: GrantFiled: June 2, 1999Date of Patent: October 31, 2006Assignee: Hitachi, Ltd.Inventors: Hiroyuki Nitta, Hiroyuki Mano, Tsutomu Furuhashi, Isao Takita, Satoru Tsunekawa, Toshio Futami, Makiko Ikeda
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Patent number: RE40916Abstract: A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inversion control to the selected gray scale voltage with respect to an inversion reference voltage on the basis of the selected gray scale voltage, an AC switching signal and the inversion reference voltage, and for outputting different liquid crystal supply voltages for one and the same display data to a liquid crystal panel.Type: GrantFiled: October 31, 2007Date of Patent: September 15, 2009Assignee: Hitachi, Ltd.Inventors: Hiroyuki Nitta, Hiroyuki Mano, Tsutomu Furuhashi, Isao Takita, Satoru Tsunekawa, Toshio Futami, Makiko Ikeda
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Patent number: RE40973Abstract: A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inversion control to the selected gray scale voltage with respect to an inversion reference voltage on the basis of the selected gray scale voltage, an AC switching signal and the inversion reference voltage, and for outputting different liquid crystal supply voltages for one and the same display data to a liquid crystal panel.Type: GrantFiled: April 19, 2006Date of Patent: November 17, 2009Assignee: Hitachi, Ltd.Inventors: Hiroyuki Nitta, Hiroyuki Mano, Tsutomu Furuhashi, Isao Takita, Satoru Tsunekawa, Toshio Futami, Makiko Ikeda
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Patent number: RE42597Abstract: A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inversion control to the selected gray scale voltage with respect to an inversion reference voltage on the basis of the selected gray scale voltage, an AC switching signal and the inversion reference voltage, and for outputting different liquid crystal supply voltages for one and the same display data to a liquid crystal panel.Type: GrantFiled: October 31, 2007Date of Patent: August 9, 2011Assignee: Hitachi, Ltd.Inventors: Hiroyuki Nitta, Hiroyuki Mano, Tsutomu Furuhashi, Isao Takita, Satoru Tsunekawa, Toshio Futami, Makiko Ikeda
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Patent number: RE42993Abstract: A liquid crystal driver includes a voltage generator for generating gray scale voltages on the basis of reference voltages, and an output device for selecting one gray scale voltage from the generated gray scale voltages in accordance with display data, for applying inversion/non-inversion control to the selected gray scale voltage with respect to an inversion reference voltage on the basis of the selected gray scale voltage, an AC switching signal and the inversion reference voltage, and for outputting different liquid crystal supply voltages for one and the same display data to a liquid crystal panel.Type: GrantFiled: August 28, 2009Date of Patent: December 6, 2011Assignee: Hitachi, Ltd.Inventors: Hiroyuki Nitta, Hiroyuki Mano, Tsutomu Furuhashi, Isao Takita, Satoru Tsunekawa, Toshio Futami, Makiko Ikeda