Patents by Inventor Naoto Shiraishi

Naoto Shiraishi 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: 7359557
    Abstract: With an encoding section 301 in an encoding apparatus, an image reading section 310 sequentially inputs binary signals by a predetermined bit length; a run counter in a run length processing section 320 outputs a run length determined within the binary signal of the predetermined bit length input by the image reading section 310 and a run length not determined within the binary signal; an adder in the run length processing section 320 adds the indeterminate run length to the first run length of a binary signal of the predetermined bit length to be subsequently input by the image reading section 310, and encoding unit 340 encodes the run length output by the run length processing section 320.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: April 15, 2008
    Assignee: Ricoh Company, Ltd.
    Inventor: Naoto Shiraishi
  • Patent number: 7233702
    Abstract: An image data compression apparatus which compresses code data obtained by compressing image data by a fixed length encoding method so as to reduce a scale of hardware and reduce a development cost of software for an image data compression a binary image data processing part processes binary image data in accordance with a run length encoding method, the binary image data processing part including an encoding part which encodes run lengths of the binary image data by an encoding part. A multiple value image data processing part processes multiple value image data in accordance with a prediction encoding method. The encoding part of the binary image data processing part is commonly used by the multiple image data processing part so that the encoding part compresses both the binary image data and the multiple value image data.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: June 19, 2007
    Assignee: Ricoh Company, Ltd.
    Inventor: Naoto Shiraishi
  • Publication number: 20060193528
    Abstract: With an encoding section 301 in an encoding apparatus, an image reading section 310 sequentially inputs binary signals by a predetermined bit length; a run counter in a run length processing section 320 outputs a run length determined within the binary signal of the predetermined bit length input by the image reading section 310 and a run length not determined within the binary signal; an adder in the run length processing section 320 adds the indeterminate run length to the first run length of a binary signal of the predetermined bit length to be subsequently input by the image reading section 310, and encoding unit 340 encodes the run length output by the run length processing section 320.
    Type: Application
    Filed: May 1, 2006
    Publication date: August 31, 2006
    Inventor: Naoto Shiraishi
  • Patent number: 7079691
    Abstract: With an encoding section 301 in an encoding apparatus, an image reading section 310 sequentially inputs binary signals by a predetermined bit length; a run counter in a run length processing section 320 outputs a run length determined within the binary signal of the predetermined bit length input by the image reading section 310 and a run length not determined within the binary signal; an adder in the run length processing section 320 adds the indeterminate run length to the first run length of a binary signal of the predetermined bit length to be subsequently input by the image reading section 310, and encoding unit 340 encodes the run length output by the run length processing section 320.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: July 18, 2006
    Assignee: Ricoh Company, Ltd.
    Inventor: Naoto Shiraishi
  • Publication number: 20060072142
    Abstract: An image forming apparatus, which forms an image of a document on a recording medium, includes: a transport path through which the recording medium is transported; a transferring unit that is arranged on the transport path and transfers the image to the recording medium; a carrying unit that is arranged on the transport path and carries the recording medium to the transferring unit; and an acquiring unit that is arranged between the carrying unit and the transferring unit and acquires identification information from a radio tag attached to the recording medium.
    Type: Application
    Filed: August 22, 2005
    Publication date: April 6, 2006
    Inventor: Naoto Shiraishi
  • Patent number: 7009622
    Abstract: An image processing apparatus includes a command analyzing unit obtaining color information of each endpoint of an object by analyzing a drawing command, a draw processing unit obtaining the color information of successive scanned points inside the object through incremental interpolation of the color information, thereby successively producing the color information for an entirety of the object, and an image processing unit processing the color information outputted by the draw processing unit.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: March 7, 2006
    Assignee: Ricoh Company, Ltd.
    Inventor: Naoto Shiraishi
  • Publication number: 20050249427
    Abstract: An image data compression apparatus which compresses code data obtained by compressing image data by a fixed length encoding method so as to reduce a scale of hardware and reduce a development cost of software for an image data compression a binary image data processing part processes binary image data in accordance with a run length encoding method, the binary image data processing part including an encoding part which encodes run lengths of the binary image data by an encoding part. A multiple value image data processing part processes multiple value image data in accordance with a prediction encoding method. The encoding part of the binary image data processing part is commonly used by the multiple image data processing part so that the encoding part compresses both the binary image data and the multiple value image data.
    Type: Application
    Filed: July 12, 2005
    Publication date: November 10, 2005
    Inventor: Naoto Shiraishi
  • Publication number: 20050246684
    Abstract: An intermediate-language creating unit analyzes a page description language to create an intermediate language having information of all CMYK printing versions. An intermediate-language storing unit stores the intermediate language created. A drawing-version setting unit sets each of the CMYK printing versions to be drawn with the intermediate language. An image-data creating unit analyzes the intermediate language stored to create image data for at least one printing version for creating the image data. An image-data storing unit stores the image data created. A drawing-version control unit recognizes the printing version to be drawn set by the drawing-version setting unit, and reads the intermediate language stored for a plurality of times.
    Type: Application
    Filed: April 22, 2005
    Publication date: November 3, 2005
    Inventor: Naoto Shiraishi
  • Publication number: 20050207667
    Abstract: An image compression apparatus compresses image data by carrying out a parallel processing for every image pattern made up of a plurality of bits. The apparatus includes a first unit for obtaining a run length of the image data and a repetition number of the run length, a second unit for coding the run length and the repetition number obtained by the first unit, and a third unit for predicting whether or not a code length of a code generated by a word which is to be coded by the second unit exceeds a predetermined threshold value, based on the run length and the repetition number obtained by the first unit. The second unit carries out a pass coding to output the image pattern as it is when the third unit predicts that the code length exceeds the predetermined threshold value.
    Type: Application
    Filed: May 24, 2005
    Publication date: September 22, 2005
    Inventor: Naoto Shiraishi
  • Publication number: 20050200910
    Abstract: An image output apparatus includes a receiving unit that receives first information from a first radio contact element that performs a close-range radio contact; an image processing unit that forms image data of an image to be output from the first information; and an image output unit that outputs the image to an output medium from the image data.
    Type: Application
    Filed: February 14, 2005
    Publication date: September 15, 2005
    Inventors: Yuichiro Kanoshima, Sadayuki Iwai, Naoto Shiraishi, Hisao Shirasawa, Kazunari Tonami, Yoshinori Hayashi, Naoki Miyatake
  • Patent number: 6941023
    Abstract: An image data compression apparatus which compresses code data obtained by compressing image data by a fixed length encoding method so as to reduce a scale of hardware and reduce a development cost of software for an image data compression a binary image data processing part processes binary image data in accordance with a run length encoding method, the binary image data processing part including an encoding part which encodes run lengths of the binary image data by an encoding part. A multiple value image data processing part processes multiple value image data in accordance with a prediction encoding method. The encoding part of the binary image data processing part is commonly used by the multiple image data processing part so that the encoding part compresses both the binary image data and the multiple value image data.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: September 6, 2005
    Assignee: Ricoh Company, Ltd.
    Inventor: Naoto Shiraishi
  • Publication number: 20050151991
    Abstract: In an image processing apparatus, an antenna is arranged in a traveling member of a scanner, a reader/writer receives a radio wave from a radio tag added to an original via the antenna when the reader/writer reads an image from the original, a demodulation circuit generates a demodulated signal, a radio tag identification number identifying and judging unit, which has received the demodulated signal, identifies a type of the radio tag, and when it is judged that the original is a forgery prevention object original, a forgery prevention processing unit applies forgery prevention processing to the original.
    Type: Application
    Filed: December 27, 2004
    Publication date: July 14, 2005
    Inventor: Naoto Shiraishi
  • Patent number: 6915017
    Abstract: An image compression apparatus compresses image data by carrying out a parallel processing for every image pattern made up of a plurality of bits. The apparatus includes a first unit for obtaining a run length of the image data and a repetition number of the run length, a second unit for coding the run length and the repetition number obtained by the first unit, and a third unit for predicting whether or not a code length of a code generated by a word which is to be coded by the second unit exceeds a predetermined threshold value, based on the run length and the repetition number obtained by the first unit. The second unit carries out a pass coding to output the image pattern as it is when the third unit predicts that the code length exceeds the predetermined threshold value.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: July 5, 2005
    Assignee: Ricoh Company, Ltd.
    Inventor: Naoto Shiraishi
  • Publication number: 20050062994
    Abstract: An image forming apparatus includes a rendering processing unit that represents position information of each vertex of a plurality of triangles forming a figure in a first image data with coordinate values in a first axis in a depth direction, a second axis perpendicular to the first axis, and a third axis perpendicular to both the first axis and the second axis, obtains the position information and color information on each vertex of the triangles, and performs the rendering process on the first image data to produce a second image data, a hidden-surface processing unit that performs a hidden-surface process on the second image data to produce a third image data, and an image processing unit that performs an image process on the third image data.
    Type: Application
    Filed: September 17, 2004
    Publication date: March 24, 2005
    Inventor: Naoto Shiraishi
  • Publication number: 20040150656
    Abstract: An image processing apparatus includes a command analyzing unit obtaining color information of each endpoint of an object by analyzing a drawing command, a draw processing unit obtaining the color information of successive scanned points inside the object through incremental interpolation of the color information, thereby successively producing the color information for an entirety of the object, and an image processing unit processing the color information outputted by the draw processing unit.
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Inventor: Naoto Shiraishi
  • Publication number: 20030063813
    Abstract: An image compression apparatus compresses image data by carrying out a parallel processing for every image pattern made up of a plurality of bits. The apparatus includes a first unit for obtaining a run length of the image data and a repetition number of the run length, a second unit for coding the run length and the repetition number obtained by the first unit, and a third unit for predicting whether or not a code length of a code generated by a word which is to be coded by the second unit exceeds a predetermined threshold value, based on the run length and the repetition number obtained by the first unit. The second unit carries out a pass coding to output the image pattern as it is when the third unit predicts that the code length exceeds the predetermined threshold value.
    Type: Application
    Filed: April 23, 2002
    Publication date: April 3, 2003
    Inventor: Naoto Shiraishi
  • Publication number: 20030053701
    Abstract: An image data compression apparatus which compresses code data obtained by compressing image data by a fixed length encoding method so as to reduce a scale of hardware and reduce a development cost of software for an image data compression. a binary image data processing part processes binary image data in accordance with a run length encoding method, the binary image data processing part including an encoding part which encodes run lengths of the binary image data by an encoding part. A multiple value image data processing part processes multiple value image data in accordance with a prediction encoding method. The encoding part of the binary image data processing part is commonly used by the multiple image data processing part so that the encoding part compresses both the binary image data and the multiple value image data.
    Type: Application
    Filed: March 19, 2002
    Publication date: March 20, 2003
    Applicant: Ricoh Company, Ltd.
    Inventor: Naoto Shiraishi
  • Publication number: 20020075532
    Abstract: With an encoding section 301 in an encoding apparatus, an image reading section 310 sequentially inputs binary signals by a predetermined bit length; a run counter in a run length processing section 320 outputs a run length determined within the binary signal of the predetermined bit length input by the image reading section 310 and a run length not determined within the binary signal; an adder in the run length processing section 320 adds the indeterminate run length to the first run length of a binary signal of the predetermined bit length to be subsequently input by the image reading section 310, and encoding unit 340 encodes the run length output by the run length processing section 320.
    Type: Application
    Filed: October 30, 2001
    Publication date: June 20, 2002
    Inventor: Naoto Shiraishi
  • Patent number: 6172678
    Abstract: A polygon outline shape processing device uses transformed vertex information from a geometric transformation device and, for each scan-line, converts polygon X, Y vertex information, mapping pattern vertex information and polygon Z-value information into polygon outline information. A horizontal interpolation device interpolates for the polygon interior, for each scan-line, using the polygon outline information provided by the polygon outline shape processing device. A hidden surface removal device performs a hidden surface removal operation as a result of comparing Z values of dots on a scan-line with Z values of corresponding dots previously stored in a Z-value line memory. A pixel drawing device determines mapping pattern information of dots on a scan-line, using polygon interior information provided by the horizontal interpolation device.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: January 9, 2001
    Assignee: Ricoh Company, Ltd.
    Inventor: Naoto Shiraishi
  • Patent number: 6081274
    Abstract: A light-source vector generating device obtains a normalized light-source vector of a point light source from light-source coordinates and polygon vertex coordinates. A diffuse reflection processing device obtains a first inner product of the normalized light-source vector calculated by the light-source vector generating device and a polygon normal vector. A specular reflection processing device obtains a light-source reflection vector from the normalized light-source vector and polygon normal vector, and obtains a second inner product of the light-source reflection vector and a sight-line (eye) vector. A color information generating device calculates polygon surface or polygon vertex color information, which has undergone shading processing, by multiplying the first inner product by diffuse reflection coefficients so as to obtain diffuse reflection light intensities and multiplying the second inner product by specular reflection coefficients so as to obtain specular reflection light intensities.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: June 27, 2000
    Assignee: Ricoh Company, Ltd.
    Inventor: Naoto Shiraishi