Patents by Inventor Hirotaka Chiba

Hirotaka Chiba 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: 20030163833
    Abstract: The system performs complicated processing at high speed on image data which is obtained by a camera-equipped mobile phone, thereby reducing the time required for image data processing. The system includes first equipment and second equipment, communicably interconnected each other with a first communication path. The first equipment includes: an image inputting unit for obtaining image information in the form of image data; and an image data transmitting unit for transmitting the image data, which has been obtained by the image inputting unit, to the second equipment over the first communication path. The second equipment includes: an image data receiving unit for receiving the image data, which has been transmitted over the first communication path, from the first equipment; and an image data processing unit for processing the image data, which has been obtained by the image data receiving unit.
    Type: Application
    Filed: October 21, 2002
    Publication date: August 28, 2003
    Applicant: FUJITSU LIMITED
    Inventors: Hirotaka Chiba, Tsugio Noda
  • Patent number: 6549667
    Abstract: The present invention relates to an image data reconstructing apparatus for reconstructing an original image by dividing image data into a plurality of blocks each comprising N×N picture elements, performing two-dimensional orthogonal transform on each of the blocks, quantizing and encoding the result of the two-dimensional orthogonal transform, decoding the encoded result, dequantizing and two-dimensional inverse orthogonal transforming the above result, wherein an operation associated with the multiplication is skipped if a multiplication by zero is detected when two-dimensional inverse orthogonal transform is performed. Before performing dequantization, two block volume of buffer is provided before or after performing two-dimensional inverse orthogonal transform for executing a pipeline process.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: April 15, 2003
    Assignee: Fujitsu Limited
    Inventors: Masahiro Fukuda, Tsugio Noda, Hirotaka Chiba, Kimitaka Murashita
  • Patent number: 6527182
    Abstract: An image reading apparatus comprises an image reading section which optically reads one line of an image on a paper at a specific time interval and inputs the acquired image data to an image signal processing section which converts the image data into a binary image data. An amount of movement detection section is provided which outputs a signal to an image data generation section when the image reading section moves by one line. When such a signal is received more than one time during one time interval, the image data generation section generates a binary image data corresponding to the number of lines whose data is not available from the binary image data for a line acquired during that time interval.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: March 4, 2003
    Assignee: Fujitsu Limited
    Inventors: Hirotaka Chiba, Tsugio Noda
  • Publication number: 20020141662
    Abstract: An image reading apparatus including an image reading section, an amount-of-movement detecting thinning out the transfer data other than particular transfer data, each of successive transfer data pieces at a time, adding the amount of movement, which is contained in the thinned-out transfer data, to the amount of movement, which is contained in the particular transfer data, and generating compressed data composed of the image data in the particular transfer data and the added amount of movement, and a data transferring section for transferring one of the transfer data and the compressed data to a destination.
    Type: Application
    Filed: October 25, 2001
    Publication date: October 3, 2002
    Applicant: Fujitsu Limited
    Inventors: Hirotaka Chiba, Tsugio Noda
  • Patent number: 6363178
    Abstract: A document image data storing and controlling system including a document image data storing unit for storing document image data as partial image data which are areas divided according to the attributes such as a text, a graphic, a table, etc.; and a document image data rewriting unit for reducing the amount of the document image data by deleting the partial image data whose degree of importance of information is low, or by lowering its resolution in the document image data. By employing this system, for example, in a portable storage device whose storage amount is limited, a storage amount for new data can be secured while leaving effective information of the document image data.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: March 26, 2002
    Assignee: Fujitsu Limited
    Inventors: Hirotaka Chiba, Kenichiro Sakai, Tsugio Noda
  • Publication number: 20020032815
    Abstract: 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: Application
    Filed: March 26, 2001
    Publication date: March 14, 2002
    Inventors: Hirotaka Chiba, Nobuyasu Yamaguchi, Kenichiro Sakai, Tsugio Noda
  • Publication number: 20020031281
    Abstract: A document image data storing and controlling system comprises a document image data storing unit for storing document image data as partial image data which are areas divided according to the attributes such as a text, a graphic, a table, etc.; and a document image data rewriting unit for reducing the amount of the document image data by deleting the partial image data whose degree of importance of information is low, or by lowering its resolution in the document image data. By employing this system, for example, in a portable storage device whose storage amount is limited, a storage amount for new data can be secured while leaving effective information of the document image data.
    Type: Application
    Filed: November 16, 2001
    Publication date: March 14, 2002
    Applicant: Fujitsu Limited
    Inventors: Hirotaka Chiba, Kenichiro Sakai, Tsugio Noda
  • Publication number: 20020002570
    Abstract: One document image is divided according to attributes such as a character, a graphic, a table, etc., and the divided partial images are stored as one file. For example, each of the partial images is stored by being assigned with a priority, reduced in stages, and compressed with a compression method suitable for each of the attributes. If a user, etc. issues the instruction for making more of a desired portion visible and easy to view when he or she displays the document image, the user can freely make an easy-to-view display that the user desires according to the contents of the instruction. For example, the document image can be displayed by making an empty space between partial images smaller, a partial image with a higher priority can be displayed earlier, a specified partial image can be displayed larger, etc.
    Type: Application
    Filed: March 4, 1998
    Publication date: January 3, 2002
    Applicant: FUJITSU LIMITED
    Inventors: KENICHIRO SAKAI, TSUGIO NODA, HIROTAKA CHIBA
  • Publication number: 20010036314
    Abstract: An image processing device such as an image scanner, etc., and its objective is to actualize a proper binarizing routine specific to the types of images. A histogram of density values is drawn based on decoded data, and after the respective levels and frequencies of the white and black peak values have been calculated, the types of decoded images are classified based on their relationships. After the original type has been thus determined, a binarization threshold value calculation method optimally suited for said type is selected, and after the threshold value has been thereby calculated, an image binarizing routine is executed.
    Type: Application
    Filed: March 2, 2001
    Publication date: November 1, 2001
    Inventors: Nobuyasu Yamaguchi, Hirotaka Chiba, Tsugio Noda
  • Publication number: 20010028737
    Abstract: 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: Application
    Filed: February 7, 2001
    Publication date: October 11, 2001
    Inventors: Hiroyuki Takakura, Nobuyasu Yamaguchi, Kenichiro Sakai, Hirotaka Chiba, Tsugio Noda
  • Patent number: 6195068
    Abstract: Image data from an upper apparatus is compressed by a compressing unit, the compressed image data is transferred to a display apparatus by a printer interface of a low speed, and the original image data is reconstructed by a decoding unit and displayed. The display apparatus is a projector and auxiliarily displays a second picture plane into a first picture plane for presentation by an independent liquid crystal panel. A phase transition type liquid crystal panel of a number of pixels and a high resolution is used to display the first picture plane and the image data is compressed and transferred and is displayed. As a second picture plane, a personal computer picture plane is transferred and displayed as it is.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: February 27, 2001
    Assignee: Fujitsu Limited
    Inventors: Shoji Suzuki, Masahiro Mori, Tsugio Noda, Masayoshi Shimizu, Hirotaka Chiba, Kenichiro Sakai
  • Patent number: 6111566
    Abstract: The present invention relates to a data processing apparatus to display a virtual space and so on, and its object is to carry out a display process for three-dimensional data at high speed. The data processing apparatus is provided with a compressed data hold part for holding compressed data, a decompression processing part for decompressing the compressed data, a decompressed data hold means for holding decompressed data, a data management part for managing the compressed data and the decompressed data in pairs, and a data selection part for selecting and reading the decompressed data when data is requested to be outputted.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: August 29, 2000
    Assignee: Fujitsu Limited
    Inventors: Hirotaka Chiba, Tsugio Noda
  • Patent number: 6054974
    Abstract: Each time line pixel data is read out from a memory in accordance with an order of display lines for a liquid crystal panel, it is compared with each line pixel data in the memory, thereby detecting a plurality of lines which can be simultaneously written. Subsequently, a writing display of a plurality of lines of the liquid crystal panel is executed by using the same line pixel data.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: April 25, 2000
    Assignee: Fujitsu Limited
    Inventors: Kenichiro Sakai, Hirotaka Chiba, Tsugio Noda
  • Patent number: 6046718
    Abstract: Image data from an upper apparatus is compressed by a compressing unit, the compressed image data is transferred to a display apparatus by a printer interface of a low speed, and the original image data is reconstructed by a decoding unit and displayed. The display apparatus is a projector and auxiliarily displays a second picture plane into a first picture plane for presentation by an independent liquid crystal panel. A phase transition type liquid crystal panel of a number of pixels and a high resolution is used to display the first picture plane and the image data is compressed and transferred and is displayed. As a second picture plane, a personal computer picture plane is transferred and displayed as it is.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: April 4, 2000
    Assignee: Fujitsu Limited
    Inventors: Shoji Suzuki, Masahiro Mori, Tsugio Noda, Masayoshi Shimizu, Hirotaka Chiba, Kenichiro Sakai
  • Patent number: 6016154
    Abstract: An image forming apparatus, such as a laser printer, ink jet printer, or a thermal transfer, which comprises a neural network. The apparatus improves image quality by reducing a zigzag included, e.g., in input image data, reducing the circuit size by reducing the number of bits having small weights for an input combination, and concurrently correcting the size of center, left and right picture elements in a predetermined window. The neural network outputs correction data for the size and position of the center dot in a window in response to an input of dot image data in a window or subdot pattern exposure data for the center dot. Additionally, the neural network uses any of the three values, +1, -1 and 0, for the coefficient of input combination for a hidden layer neuron, e.g., after a teacher pattern is learned. Further, the neural network outputs correction data for 3.times.N subblocks of picture elements obtained by dividing blocks of picture elements in the center, left and right of a window.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: January 18, 2000
    Assignee: Fujitsu Limited
    Inventors: Jun Moroo, Tomohisa Mikami, Masahiro Mori, Hirotaka Chiba, Shigemi Nagata, Shigeyoshi Nakamura, Toshio Konaka, Kazuhiko Sato
  • Patent number: 5933533
    Abstract: The present invention relates to an image data reconstructing appatatus for reconstructing an original image by dividing image data into a plurality of blocks each comprising NXN picture elements, performing two-dimensional orthogonal transform on each of said blocks, quantizing and encoding the result of said transform, decoding the encoded result, dequantizing and two-dimensional inverse orthogonal transforming the above result, wherein an operation associated with the multiplication is skipped if a multiplication by zero is detected when two-dimensional inverse orthogonal transform is performed. Before performing dequantization, two block volume of buffer is provided before or after performing two-dimensional inverse orthogonal transform for executing a pipeline process.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: August 3, 1999
    Assignee: Fujitsu Limited
    Inventors: Masahiro Fukuda, Tsugio Noda, Hirotaka Chiba, Kimitaka Murashita
  • Patent number: 5933538
    Abstract: The present invention relates to an image data reconstructing apparatus for reconstructing an original image by dividing image data into a plurality of blocks each comprising N.times.N picture elements, performing two-dimensional orthogonal transform on each of said blocks, quantizing and encoding the result of said transform, decoding the encoded result, dequantizing and two-dimensional inverse orthogonal transforming the above result, wherein an operation associated with the multiplication is skipped if a multiplication by zero is detected when two-dimensional inverse orthogonal transform is performed. Before performing dequantization, two block volume of buffer is provided before or after performing two-dimensional inverse orthogonal transform for executing a pipeline process.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: August 3, 1999
    Assignee: Fujitsu Limited
    Inventors: Masahiro Fukuda, Tsugio Noda, Hirotaka Chiba, Kimitaka Murashita
  • Patent number: 5875266
    Abstract: The present invention relates to an image data reconstructing apparatus for reconstructing an original image by dividing image data into a plurality of blocks each comprising NXN picture elements, performing two-dimensional orthogonal transform on each of said blocks, quantizing and encoding the result of said transform, decoding the encoded result, dequantizing and two-dimensional inverse orthogonal transforming the above result, wherein an operation associated with the multiplication is skipped if a multiplication by zero is detected when two-dimensional inverse orthogonal transform is performed. Before performing dequantization, two block volume of buffer is provided before or after performing two-dimensional inverse orthogonal transform for executing a pipeline process.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: February 23, 1999
    Assignee: Fujitsu Limited
    Inventors: Masahiro Fukuda, Tsugio Noda, Hirotaka Chiba, Kimitaka Murashita
  • Patent number: 5708762
    Abstract: A device for printing print data after converting the print data into converted print data includes a head unit for printing the converted print data by moving in a scanning direction, the head unit having at least one head line in which print elements are arranged diagonally with respect to the scanning direction, a row-order-conversion unit for rearranging rows of the print data according to an arrangement of the print elements so as to generate row-converted print data, and a column-order-conversion unit for rearranging column positions of the row-converted print data according to the arrangement of the print elements so as to generate the converted print data.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: January 13, 1998
    Assignee: Fujitsu Limited
    Inventors: Hirotaka Chiba, Masayoshi Shimizu, Tsugio Noda, Masahiro Mori
  • Patent number: 5614960
    Abstract: An encoding unit encodes the received image data in frame units. A code buffer stores the amount of codes per 1 frame. The detection condition setting unit sets a detection condition (a standard value of a code amount difference) specified according to the detection designation data entered externally. A scene determining unit calculates the difference between the amount of codes in the present frame entered from the code buffer and the amount of codes in the previous frame. If the difference is larger than the detection condition (the standard value of the code amount difference), the scene determining unit issues a COS code indicating a scene-changed frame and sets a selection signal in an active state. A switch adds the COS code to the encoded data in the present frame and externally outputs it when the selection signal indicates an active state.
    Type: Grant
    Filed: June 19, 1996
    Date of Patent: March 25, 1997
    Assignee: Fujitsu Limited
    Inventors: Hirotaka Chiba, Tsugio Noda