Patents by Inventor Toshio Miyazawa

Toshio Miyazawa 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).

  • Publication number: 20070091394
    Abstract: An image processing unit executes an image process on a target image based on process-setting contents, and generates a processed image. An area extracting unit compares the processed image with the target image, and extracts a partial area of a predetermined size showing a notable effect of the image process executed on the target image, as a checking area. A checking-image display unit displays the processed image corresponding to the extracted checking area on a display unit, as a checking image for checking the process-setting contents of the image process.
    Type: Application
    Filed: September 13, 2006
    Publication date: April 26, 2007
    Inventors: Tetsuya Sakayori, Junichi Takami, Bin Lu, Yu Sekiguchi, Yoshinaga Kato, Yoshifumi Sakuramata, Iwao Saeki, Toshio Miyazawa
  • Publication number: 20070070023
    Abstract: To provide a field-sequential liquid crystal display device capable of reducing color shading.
    Type: Application
    Filed: August 17, 2006
    Publication date: March 29, 2007
    Inventors: Kozo Yasuda, Terunori Saitou, Teruaki Saito, Hideaki Nakatsuka, Toshio Miyazawa
  • Publication number: 20070070470
    Abstract: A finished-image generating unit generates a finished image showing a result of a process performed on a target image. A transparent-finished-image generating unit generates, when the target image extends to a plurality of pages, a transparent finished image by adjusting a transparency of a non-image portion of the finished image to a predetermined transparency. A transparent-finished-image display unit forms the transparent finished image in a stack, and displays the stacked transparent finished image on a display unit in such a manner that an image portion of the transparent finished image is seen through the non-image portion.
    Type: Application
    Filed: September 11, 2006
    Publication date: March 29, 2007
    Inventors: Junichi Takami, Tetsuya Sakayori, Iwao Saeki, Yoshinaga Kato, Yoshifumi Sakuramata, Bin Lu, Toshio Miyazawa, Yu Sekiguchi
  • Patent number: 7193603
    Abstract: A display device includes a plurality of pixels, a plurality of signal lines connected to the plurality of pixels and a drive circuit connected to the plurality of signal lines. The drive circuit includes a distribution port and a decoder, wherein the distribution port distributes supplied data to corresponding circuit portions in the decoder, and the decoder selects gray scale voltages based upon the data from the distribution port. The distribution port includes a first switching stage having two switching elements and a second switching stage having four switching elements and which is electrically connected to the first switching stage. The decoder is disposed between the second switching stage and the plurality of signal lines.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: March 20, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Toshio Miyazawa, Norio Mamba
  • Publication number: 20070058226
    Abstract: In a user interface apparatus, when a position of a to-be-processed image displayed on a display screen is specified through an area specifying unit, a position detecting unit detects the position specified through the area specifying unit. A menu display unit displays at least one setting item associated with a setting area corresponding to the position. A determining unit determines that the setting item is specified, and an accepting unit accepts a setting corresponding to the setting item for the to-be-processed image. A preview display unit displays a preview indicating a result of processing the to-be-processed image based on the setting item.
    Type: Application
    Filed: September 14, 2006
    Publication date: March 15, 2007
    Inventors: Bin Lu, Tetsuya Sakayori, Iwao Saeki, Junichi Takami, Toshio Miyazawa, Yoshifumi Sakuramata, Yoshinaga Kato, Yu Sekiguchi
  • Publication number: 20070057152
    Abstract: A correction-amount detecting unit detects a correction amount at a time of performing an irreversible correction of an input image. A correction-amount and image integrating unit outputs the correction amount detected by the correction-amount detecting unit and image data of the input image in association with each other.
    Type: Application
    Filed: September 8, 2006
    Publication date: March 15, 2007
    Inventor: Toshio Miyazawa
  • Publication number: 20070058210
    Abstract: A finished-image generating unit generates a finished image showing a result of a process performed on a target image according to various function setting items. A finished-image display unit, when the target image extends to a plurality of pages, forms the finished image in a stack, and displays the stacked finished image on a display unit with a page structure image that shows an overall page structure of the stacked finished image. A page moving unit, when one of the pages constituting the page structure image is specified via an operating unit, executes a page moving from a page currently displayed on the display unit to the specified page.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 15, 2007
    Inventors: Yoshifumi Sakuramata, Junichi Takami, Tetsuya Sakayori, Iwao Saeki, Yoshinaga Kato, Bin Lu, Toshio Miyazawa, Yu Sekiguchi
  • Publication number: 20070046879
    Abstract: A semi-transparent homogeneous-alignment LCD device including a transmission part and a reflection part, a first linear dielectric protrusion disposed between a common electrode and a liquid crystal layer so as to extend over a plurality of pixels in a short side direction of pixels and be disposed nearly in center of the transmission part, and a second linear dielectric protrusion disposed in the reflection part between the common electrode and a first substrate so as to extend over a plurality of pixels in the short side direction, wherein an alignment direction of liquid crystal molecules crosses the first and second linear dielectric protrusions at right angles and is parallel to a long side direction of pixels, and a tilt angle of the liquid crystal molecules is approximately 0°, or even if there is a pre-tilt angle, the tilt angle of the liquid crystal molecules is 2° or less.
    Type: Application
    Filed: August 17, 2006
    Publication date: March 1, 2007
    Inventors: Shoichi Hirota, Osamu Itou, Shinichiro Oka, Masaya Adachi, Shinichi Komura, Hirotaka Imayama, Masateru Morimoto, Tetsuya Nagata, Koichi Fukuda, Toshio Miyazawa
  • Publication number: 20070040825
    Abstract: A display device includes first and second voltage generation circuits each including a voltage circuit for outputting an internal voltage on the basis of a plurality of clocks, a sampling circuit for sampling an output signal from the voltage circuit, a monitoring circuit for comparing an output signal from the first sampling circuit with a predetermined voltage range and outputting a result, and a power supply generation circuit for generating a power supply voltage to be input to the voltage circuit on the basis of an output signal supplied from the monitoring circuit. The voltage circuit in the first voltage generation circuit is controlled on the basis of a level of the power supply voltage, and the voltage circuit in the second voltage generation circuit is controlled on the basis of periods of the clocks.
    Type: Application
    Filed: June 8, 2006
    Publication date: February 22, 2007
    Inventors: Norio Mamba, Yasuyuki Kudo, Toshio Miyazawa
  • Patent number: 7176868
    Abstract: A display apparatus having a display pixel unit including a plurality of pixels arranged in a matrix, a first driving circuit for outputting a control signal to the pixels to turn the pixels ON, the control signal depending on gray-scale information of display data, and a second driving circuit outputting a ramp waveform signal for turning the pixels on a line ON in accordance with a time-period of a scanning time-period and a scanning signal of turning the pixels on the line OFF. The ramp waveform signal includes a first ramp waveform signal and a second ramp waveform signal, and the second driving circuit outputs alternately the first and second ramp waveform signals to the pixels in accordance with the time-period of the scanning time-period.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: February 13, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Yasuyuki Kudo, Tsutomu Furuhashi, Toshio Miyazawa, Yoshiro Mikami, Hajime Akimoto, Norio Manba
  • Publication number: 20070024566
    Abstract: A display device which is used in a miniaturized portable information device can exhibit the low power consumption even when a display is not changed over for a long period in a state that a battery or the like is used as a power source. The display device can maintain a high numerical aperture by suppressing the number of parts even when a memory element is provided to a pixel. In a liquid crystal display device, a pixel exhibits the low power consumption by including a memory element and thus preventing the transmission of a video signal. By making use of a charge held in a pixel electrode of a liquid crystal display panel, a signal for AC driving is formed in the inside of a pixel thus performing AC driving to perform a display without deteriorating liquid crystal even when the video signal is not rewritten. The liquid crystal display device can realize the memory element with the simple constitution without sacrificing a numeral aperture.
    Type: Application
    Filed: July 24, 2006
    Publication date: February 1, 2007
    Inventors: Toshio Miyazawa, Katsumi Matsumoto, Kozo Yasuda
  • Patent number: 7170484
    Abstract: A circuit configuration is simplified to enable a color display of a high aperture ratio and multiple gradations to have no malfunction A first transistor pair composing a first inverter and a second transistor pair composing a second inverter, while bridging alternating power sources ?p and ?n, are caused to act as an output circuit to a pixel electrode. Diodes D1 and D2 having the same forward direction as the conduction direction of the first transistors are inserted into the series circuit of the first transistor pair, and the common node of the diodes is connected with the output of a switching transistor. A capacitor is connected between a common node of control electrodes of the second transistor pair and a series connection intermediate node of the second transistor pair so that the written state of data is controlled by making use of charges stored in the capacitor.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: January 30, 2007
    Assignee: Hitachi Displays, Ltd.
    Inventor: Toshio Miyazawa
  • Publication number: 20070018935
    Abstract: The present invention provides a display device which is used in a miniaturized portable information device, wherein the display device requires a small mounting area for a driving circuit thus realizing free mounting of the driving circuit and also can perform driving thereof with a low-voltage power source such as a battery. In a display device which includes a display panel and a driving circuit on the same substrate, a booster circuit is formed on one side of a display panel together with the driving circuit and is formed by steps substantially equal to steps for pixel transistors. The booster circuit includes a circuit which compensates for the lowering of voltage of a switching element used in the booster circuit attributed to a threshold value of a switching element.
    Type: Application
    Filed: July 24, 2006
    Publication date: January 25, 2007
    Inventors: Toshio Miyazawa, Katsumi Matsumoto, Norio Mamba
  • Patent number: 7167154
    Abstract: The present invention provides a display device including a scanning driving circuit which exhibits the high degree of freedom in designing of waveforms of scanning signals while ensuring the reduction of power consumption. A shift register served for a scanning driving circuit is driven at a voltage lower than a voltage amplitude of scanning signals. Booster circuits are provided corresponding to respective stages of the shift register. To each booster circuit, a common scanning signal which is in common with other booster circuits is inputted as a signal separate from a shift register output. The scanning signal is selected from the common scanning signal during a period in which the scanning signal is selected in response to the shift register output and the selected scanning signal is outputted to respective gate lines.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: January 23, 2007
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co. Ltd.
    Inventors: Tomohiko Sato, Toshio Miyazawa, Hideo Sato, Masahiro Maki
  • Patent number: 7164403
    Abstract: A liquid crystal display device having a plurality of pixels arranged in a matrix, a plurality of video signal lines for supplying video signal voltages to the plurality of pixels, and a drive circuit which selects a voltage level of a gray scale voltage varying periodically as one of the video signal voltages corresponding to display data to be supplied to one of the plurality of pixels. The drive circuit has a plurality of series combinations of plural processing circuits, wherein each of the plurality of series combinations of plural processing circuits corresponds to one of the plurality of video signal lines, and each of the plural processing circuits comprises a parallel combination of a first switching element and a second switching element. The first and second switching elements are made operative or inoperative as a switch in accordance with different conditions.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: January 16, 2007
    Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.
    Inventors: Hironobu Isami, Iwao Takemoto, Toshio Miyazawa, Katsumi Matsumoto
  • Publication number: 20070001985
    Abstract: The present invention provides a display device which is capable of fetching input signals of a small amplitude into the inside thereof. A level converting circuit includes a first-conductive-type first transistor having a gate electrode to which input signals are applied through a first capacitive element, a second-conductive-type second transistor having a gate electrode to which input signals are applied through a second capacitive element, a first bias circuit which applies a first bias voltage to the gate electrode of the first transistor and a second bias circuit which applies a second bias voltage to the gate electrode of the second transistor. Here, the first bias voltage is a voltage which turns off the first transistor when a voltage applied to the gate electrode of the first transistor assumes a maximum value and the second bias voltage is a voltage which turns off the second transistor when a voltage applied to the gate electrode of the second transistor assumes a minimum value.
    Type: Application
    Filed: September 5, 2006
    Publication date: January 4, 2007
    Inventors: Hideo Sato, Shigeyuki Nishitani, Toshio Miyazawa
  • Publication number: 20060274388
    Abstract: An image processing apparatus includes a preview generating unit configured to generate, based on image data, a preview image that is expected to be output; an attribute extracting unit configured to extract an attribute of at least one portion in the image data; a display unit configured to display the preview image; a position-information obtaining unit configured to obtain position information indicative of a position of a specified portion in the preview image; and a processing unit configured to perform, on the image data, a process according to an attribute that corresponds to the position.
    Type: Application
    Filed: May 4, 2006
    Publication date: December 7, 2006
    Inventors: Toshio Miyazawa, Tetsuya Sakayori, Iwao Saeki, Yoshinaga Kato, Bin Lu, Yoshifumi Sakuramata, Junichi Takami, Yu Sekiguchi
  • Patent number: 7140534
    Abstract: There are provided a data recording medium, a reading device for reading the data recording medium, a recording device for reading the data recording medium and recording data to other media, and methods thereof able to prevent forgery without comparing visible information and data stored in a built-in electronic circuit chip. The reading device is for reading a data recording medium including a sheet portion visibly printed with an image and a data storage unit recorded with control data.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: November 28, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshio Miyazawa, Hideaki Yamagata, Hiroshi Shimura, Michiyoshi Tachikawa, Hiroaki Nagatsuka
  • Publication number: 20060256055
    Abstract: A liquid crystal display device includes a liquid crystal panel having a plurality of pixels disposed in a matrix format, a Y-selecting signal generating unit for selecting one or more pixel rows, an X-selecting signal generating unit for selecting one or more pixel columns, and a tone signal generating unit for generating a tone signal for applying the corresponding tone voltage to tone information of said display data onto each of the pixels.
    Type: Application
    Filed: May 23, 2006
    Publication date: November 16, 2006
    Inventors: Yasuyuki Kudo, Tsutomu Furuhashi, Yoshiro Mikami, Shinichi Komura, Toshio Miyazawa
  • Publication number: 20060238474
    Abstract: A color display of high numerical aperture and multiple gray scales, which can realize multicoloring and area gray scales is accomplished by simplifying the pixel circuit constitution of the display device. A pair of transistors which hold video signals by bridging alternating power supply sources are used as an output circuit to a pixel electrode, and a capacitance is connected to the pixel electrode, whereby the data writing state is controlled by making use of a charge stored in the capacitance.
    Type: Application
    Filed: June 6, 2006
    Publication date: October 26, 2006
    Inventor: Toshio Miyazawa