Patents by Inventor Nobuyasu Yamaguchi
Nobuyasu Yamaguchi 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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Publication number: 20050194445Abstract: When it is determined whether the color of each cell of an image is black or white from the gradation value of each cell, the determination is made by comparison of the gradation level of the cell with a threshold if the gradation level is sufficiently close to that of black or white. In contrast, if the gradation value of the cell is within a gray zone, the color of the cell is determined from the colors of the cells adjacent to the cell of interest. That is, if the gradation value of the cell is gray and the colors of the adjacent cells are all black, the color of the cell is determined to be white; and conversely if the colors of all the adjacent cells are white, the color of the cell is determined to be black.Type: ApplicationFiled: May 3, 2005Publication date: September 8, 2005Applicant: FUJITSU LIMITEDInventors: Hiroyuki Takakura, Hirotaka Chiba, Nobuyasu Yamaguchi, Tsugio Noda
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Patent number: 6927386Abstract: The position of a light blocking object is detected not only within a display screen, but also outside the display screen. With the use of the function of detecting the position in a region outside the display screen, it becomes possible to provide virtual buttons in this region and detect dust around a light retro-reflector. Dirt on the light retro-reflector is detected based on the levels of light receiving signals of optical units.Type: GrantFiled: May 19, 2004Date of Patent: August 9, 2005Assignee: Fujitsu LimitedInventors: Yasuhide Iwamoto, Satoshi Sano, Fumihiko Nakazawa, Nobuyasu Yamaguchi
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Publication number: 20050156047Abstract: An image reading apparatus is attached to the top of a PDA. During the image reading operation, an operation state control signal is output from the image reading apparatus to the PDA. According to the signal, the intensity of an input display unit not required during the operation can be reduced. Additionally, the power supply or the supply of a signal not required during the operation is stopped. Furthermore, an LED of the PDA issues a notification of an operation state by lighting, blinking, or turning-off. When the input display unit displays an image, an erect image and an inverted image are appropriately switched depending on the operation state. During an image reading operation, input by input buttons and a touch panel of the input display unit are nullified to avoid the occurrence of a malfunction.Type: ApplicationFiled: February 17, 2005Publication date: July 21, 2005Applicant: FUJITSU LIMITEDInventors: Hirotaka Chiba, Nobuyasu Yamaguchi, Tsugio Noda
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Publication number: 20050121520Abstract: A code type determining method comprises a block selecting step of selecting input image data in units of rectangular blocks, a block determining step of determining whether or not the selected block satisfies a predetermined condition, and a code determining step of determining a type of code included in the block which satisfies the predetermined condition.Type: ApplicationFiled: May 26, 2004Publication date: June 9, 2005Applicant: FUJITSU LIMITEDInventors: Nobuyasu Yamaguchi, Hiroyuki Takakura, Hirotaka Chiba, Tsugio Noda
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Patent number: 6886749Abstract: An image reading apparatus is attached to the top of a PDA. During the image reading operation, an operation state control signal is output from the image reading apparatus to the PDA. According to the signal, the intensity of an input display unit not required during the operation can be reduced. Additionally, the power supply or the supply of a signal not required during the operation is stopped. Furthermore, an LED of the PDA issues a notification of an operation state by lighting, blinking, or turning-off. When the input display unit displays an image, an erect image and an inverted image are appropriately switched depending on the operation state. During an image reading operation, input by input buttons and a touch panel of the input display unit are nullified to avoid the occurrence of a malfunction.Type: GrantFiled: April 21, 2003Date of Patent: May 3, 2005Assignee: Fujitsu LimitedInventors: Hirotaka Chiba, Nobuyasu Yamaguchi, Tsugio Noda
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Patent number: 6885776Abstract: In the first stage, a merging position relationship (a rotation angle, and/or presence/absence of mirror image flipping) between two images is identified by using reduced images, and a rough overlapping region is detected. In the second stage, an exact overlapping position, an inclination, etc. are detected. In the third stage, the two images are merged by using the process results of the first and the second stages.Type: GrantFiled: September 26, 2001Date of Patent: April 26, 2005Assignee: Fujitsu LimitedInventors: Hiroyuki Takakura, Kenichiro Sakai, Nobuyasu Yamaguchi, Tsugio Noda
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Patent number: 6873731Abstract: The present invention concerns an image processing device and an image processing method for processing a decoded image, and its objective is to optimally binarize a decoded original. After the respective density histograms of colors R, G, and B have been drawn, the hierarchical relationship between the low-density-side peak value and high-density-side peak value is investigated. A color component which is to become a binarization object is determined based on the comparison results on the number of color components whose high-density-side peak value is/are higher and the number of color components whose low-density-side peak value is/are higher, and the color of the pixel to be outputted is determined based on the comparison of the pixel with a threshold value.Type: GrantFiled: February 7, 2001Date of Patent: March 29, 2005Assignee: Fujitsu LimitedInventors: Hiroyuki Takakura, Nobuyasu Yamaguchi, Kenichiro Sakai, Hirotaka Chiba, Tsugio Noda
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Patent number: 6844539Abstract: The position of a light blocking object is detected not only within a display screen, but also outside the display screen. With the use of the function of detecting the position in a region outside the display screen, it becomes possible to provide virtual buttons in this region and detect dust around a light retro-reflector. Dirt on the light retro-reflector is detected based on the levels of light receiving signals of optical units.Type: GrantFiled: September 24, 2002Date of Patent: January 18, 2005Assignee: Fujitsu LimitedInventors: Yasuhide Iwamoto, Satoshi Sano, Fumihiko Nakazawa, Nobuyasu Yamaguchi
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Patent number: 6838657Abstract: The position of a light blocking object is detected not only within a display screen, but also outside the display screen. With the use of the function of detecting the position in a region outside the display screen, it becomes possible to provide virtual buttons in this region and detect dust around a light retro-reflector. Dirt on the light retro-reflector is detected based on the levels of light receiving signals of optical units.Type: GrantFiled: May 19, 2004Date of Patent: January 4, 2005Assignee: Fujitsu LimitedInventors: Yasuhide Iwamoto, Satoshi Sano, Fumihiko Nakazawa, Nobuyasu Yamaguchi
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Publication number: 20040252663Abstract: A base station includes a transmit diversity unit. The transmit diversity unit is provided with two transmission units for respective systems. Each of the transmission units produces transmission codes by coding transmission data. Each of the transmission units produces two CDMA signals by subjecting first transmission codes to spreading and 16QAM and transmits the two CDMA signals. Each of the transmission units produces two CDMA signals by subjecting second transmission codes to spreading and 16QAM and transmits the two CDMA signals. With this, time-difference diversity is implemented. Each of the transmission units codes the transmission data such that constellation points of a combined signal derived from the two CDMA signals are substantially evenly distributed. Accordingly, it is ensured that noise margin is large so that a bit error rate is improved.Type: ApplicationFiled: January 16, 2003Publication date: December 16, 2004Inventors: Michiaki Takano, Minoru Abe, Kuniyuki Suzuki, Nobuo Fujihara, Nobuyasu Yamaguchi, Takuya Yamazaki, Jinsong Duan
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Publication number: 20040218479Abstract: The position of a light blocking object is detected not only within a display screen, but also outside the display screen. With the use of the function of detecting the position in a region outside the display screen, it becomes possible to provide virtual buttons in this region and detect dust around a light retro-reflector. Dirt on the light retro-reflector is detected based on the levels of light receiving signals of optical units.Type: ApplicationFiled: May 19, 2004Publication date: November 4, 2004Applicant: FUJITSU LIMITEDInventors: Yasuhide Iwamoto, Satoshi Sano, Fumihiko Nakazawa, Nobuyasu Yamaguchi
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Publication number: 20040207858Abstract: The position of a light blocking object is detected not only within a display screen, but also outside the display screen. With the use of the function of detecting the position in a region outside the display screen, it becomes possible to provide virtual buttons in this region and detect dust around a light retro-reflector. Dirt on the light retro-reflector is detected based on the levels of light receiving signals of optical units.Type: ApplicationFiled: May 19, 2004Publication date: October 21, 2004Applicant: FUJITSU LIMITEDInventors: Yasuhide Iwamoto, Satoshi Sano, Fumihiko Nakazawa, Nobuyasu Yamaguchi
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Publication number: 20040206889Abstract: The position of a light blocking object is detected not only within a display screen, but also outside the display screen. With the use of the function of detecting the position in a region outside the display screen, it becomes possible to provide virtual buttons in this region and detect dust around a light retro-reflector. Dirt on the light retro-reflector is detected based on the levels of light receiving signals of optical units.Type: ApplicationFiled: May 19, 2004Publication date: October 21, 2004Applicant: FUJITSU LIMITEDInventors: Yasuhide Iwamoto, Satoshi Sano, Fumihiko Nakazawa, Nobuyasu Yamaguchi
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Publication number: 20040074967Abstract: A bar code is scanned and a line of image data is extracted in a process 1. The line of extracted image is divided into patterns forming characters in a process 1. The divided patterns are converted into characters in a process 3. In the process 3, a pattern is divided by the number of modules having the smallest width forming a black bar or a white bar, a module value indicating each module as black or white is determined, and each pattern is converted into a character, thereby correctly recognizing a bar code using general-purpose optical equipment for reading a bar code.Type: ApplicationFiled: October 9, 2003Publication date: April 22, 2004Applicant: Fujitsu LimitedInventors: Hiroyuki Takakura, Hirotaka Chiba, Nobuyasu Yamaguchi, Tsugio Noda
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Patent number: 6664952Abstract: An optical unit of an optical scanning-type touch panel is constructed by providing a light emitting element for emitting infrared laser light, a collimation lens for changing the laser light from the light emitting element into parallel light, a light receiving element for receiving scanning light, a slit plate for limiting incident light on the light receiving element, a polygon mirror for angularly scanning the laser light from the light emitting element, an aperture mirror for limiting light projected onto the polygon mirror from the collimation lens by an aperture and for reflecting the reflected light from the polygon mirror toward the light receiving element, a light receiving lens for focusing the reflected light from the aperture mirror, and a motor for rotating the polygon mirror in a single optical unit main body as one unit.Type: GrantFiled: April 30, 2001Date of Patent: December 16, 2003Assignee: Fujitsu LimitedInventors: Yasuhide Iwamoto, Satoshi Sano, Fumihiko Nakazawa, Nobuyasu Yamaguchi
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Publication number: 20030222201Abstract: An image reading apparatus is attached to the top of a PDA. During the image reading operation, an operation state control signal is output from the image reading apparatus to the PDA. According to the signal, the intensity of an input display unit not required during the operation can be reduced. Additionally, the power supply or the supply of a signal not required during the operation is stopped. Furthermore, an LED of the PDA issues a notification of an operation state by lighting, blinking, or turning-off. When the input display unit displays an image, an erect image and an inverted image are appropriately switched depending on the operation state. During an image reading operation, input by input buttons and a touch panel of the input display unit are nullified to avoid the occurrence of a malfunction.Type: ApplicationFiled: April 21, 2003Publication date: December 4, 2003Applicant: Fujitsu LimitedInventors: Hirotaka Chiba, Nobuyasu Yamaguchi, Tsugio Noda
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Patent number: 6651120Abstract: A user specifies image data to be transferred and the conversion form of the image data. An information processing device instructs an image data obtaining device to transfer the specified image data. The transferred image data is converted into data in the form specified by the user. The image data to be transferred and the specification of its conversion form are simultaneously received, so that the image data is transferred and converted at the same time. Accordingly, user operations are reduced and user operability can be improved.Type: GrantFiled: March 26, 2001Date of Patent: November 18, 2003Assignee: Fujitsu LimitedInventors: Hirotaka Chiba, Nobuyasu Yamaguchi, Kenichiro Sakai, Tsugio Noda
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Publication number: 20030198383Abstract: After a preprocess such as a process for extracting a portion of an image is performed by a preprocessing unit for an image such as a barcode, etc., which is obtained by an image data inputting unit within a first device such as a cellular phone equipped with a camera, etc., the image is transmitted to a second device such as an image processing server, etc. via a communications path by an image data transmitting unit. In the second device, an image process such as barcode data decoding, etc. is performed, and result data is notified to the first device via the communications path.Type: ApplicationFiled: January 30, 2003Publication date: October 23, 2003Applicant: Fujitsu LimitedInventors: Nobuyasu Yamaguchi, Tsugio Noda
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Publication number: 20030160760Abstract: First, a tilt angle relative to paper or a subject of each input image is obtained. Then, the tile of each input image is corrected based on the detected tilt angle. Using the corrected input image or an image obtained by reducing the amount of data of the corrected input image, the overlapping position between the two input images is detected. Finally, two input images are combined in the detected overlapping position.Type: ApplicationFiled: February 12, 2003Publication date: August 28, 2003Applicant: FUJITSU LIMITEDInventors: Hiroyuki Takakura, Kenichiro Sakai, Nobuyasu Yamaguchi, Tsugio Noda
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Publication number: 20030112888Abstract: A bit stream of data is mapped in such a manner that a specified bit of at least one symbol becomes a dummy bit.Type: ApplicationFiled: September 30, 2002Publication date: June 19, 2003Inventors: Michiaki Takano, Minoru Abe, Kuniyuki Suzuki, Jinsong Duan, Nobuo Fujihara, Nobuyasu Yamaguchi, Takuya Yamazaki