Patents by Inventor Masami Shimakura
Masami Shimakura 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: 8700591Abstract: A search engine has a plurality of comparators. Discriminants are set in the comparators for each search, and the comparators are selectively connected.Type: GrantFiled: June 18, 2009Date of Patent: April 15, 2014Assignee: Canon Kabushiki KaishaInventor: Masami Shimakura
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Patent number: 8661205Abstract: A communication apparatus has plural processors to perform pipeline processing on communication data. A first processor among the plural processors transfers information, used by a second processor to perform post-stage processing of the first processor, from a first memory to a second memory.Type: GrantFiled: December 10, 2007Date of Patent: February 25, 2014Assignee: Canon Kabushiki KaishaInventors: Masami Shimakura, Yuta Masuda
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Patent number: 7889672Abstract: A communication apparatus which transmits data to a transmission destination, and receives, from the transmission destination, an acknowledgement indicating that the data has been received stores, in a memory, first specific data for specifying a plurality of transmission data, and transmission time data indicating transmission times of the plurality of transmission data. Based on second specific data contained in the acknowledgement, the communication apparatus searches the memory for first specific data for specifying transmission data corresponding to the acknowledgement, and calculates a round trip time based on the transmission time of the transmission data specified by the found first specific data, and a reception time at which the acknowledgement is received.Type: GrantFiled: June 18, 2009Date of Patent: February 15, 2011Assignee: Canon Kabushiki KaishaInventor: Masami Shimakura
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Publication number: 20100228754Abstract: A search engine has a plurality of comparators. Discriminants are set in the comparators for each search, and the comparators are selectively connected.Type: ApplicationFiled: June 18, 2009Publication date: September 9, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Masami Shimakura
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Publication number: 20090323543Abstract: A communication apparatus which transmits data to a transmission destination, and receives, from the transmission destination, an acknowledgement indicating that the data has been received stores, in a memory, first specific data for specifying a plurality of transmission data, and transmission time data indicating transmission times of the plurality of transmission data. Based on second specific data contained in the acknowledgement, the communication apparatus searches the memory for first specific data for specifying transmission data corresponding to the acknowledgement, and calculates a round trip time based on the transmission time of the transmission data specified by the found first specific data, and a reception time at which the acknowledgement is received.Type: ApplicationFiled: June 18, 2009Publication date: December 31, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Masami Shimakura
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Publication number: 20090307364Abstract: In a communication apparatus for communicating based on a communication protocol, context information relating to a connection of the communication protocol is held and managed. The timer used in the communication protocol is used for time-count process, a notification of timeout of the timer is given in advance, and when the notification of timeout is given in advance, an instruction for pre-load is given so that the context information is stored in the cache memory. Thereby, upon timeout of the timer, the context information is stored in the cache memory.Type: ApplicationFiled: May 26, 2009Publication date: December 10, 2009Applicant: CANON KABUSHIKI KAISHAInventor: Masami Shimakura
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Publication number: 20080140977Abstract: A communication apparatus has plural processors to perform pipeline processing on communication data. A first processor among the plural processors transfers information, used by a second processor to perform post-stage processing of the first processor, from a first memory to a second memory.Type: ApplicationFiled: December 10, 2007Publication date: June 12, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Masami Shimakura, Yuta Masuda
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Patent number: 6157359Abstract: A display control apparatus for a display device capable of performing updating of a display state for a display element subjected to a change in display includes a display data memory for storing display data, a display controller capable of sequentially reading out the display data stored in the memory and transferring the readout display data to the display device at a predetermined period and capable of performing a partial rewrite operation of the display data stored in the memory, and a rewrite detector for detecting an address for accessing the display data memory to cause the display controller to perform the partial rewrite operation. In addition, a transfer permitting unit reads the address detected by the rewrite detector and permits transfer of only the display data of the read address to the display controller.Type: GrantFiled: March 14, 1996Date of Patent: December 5, 2000Assignee: Canon Kabushiki KaishaInventors: Masami Shimakura, Toshiyuki Nobutani, Junichi Tanahashi, Kenichiro Ono, Hajime Morimoto, Tatsuya Sakashita, Eiichi Matsuzaki
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Patent number: 6140996Abstract: A display control apparatus for a display device, capable of updating a display state for a display element subjected to a change in display updating, includes a display data memory for storing display data, and a display controller capable of sequentially reading out the display data stored in the memory and transferring the readout display data to the display device at a predetermined period and capable of performing a partial rewrite operation of the display data stored in the memory.Type: GrantFiled: October 23, 1997Date of Patent: October 31, 2000Assignee: Canon Kabushiki KaishaInventors: Toshiyuki Nobutani, Masami Shimakura, Junichi Tanahashi, Kenichiro Ono, Hajime Morimoto, Tatsuya Sakashita, Eiichi Matsuzaki
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Patent number: 6140992Abstract: A disturbance of an image in the case where a display format is switched during the display operation is prevented without exerting an adverse influence on the operation of a display apparatus side.Type: GrantFiled: October 15, 1997Date of Patent: October 31, 2000Assignee: Canon Kabushiki KaishaInventors: Eiichi Matsuzaki, Taketo Hasegawa, Toshiyuki Nobutani, Masami Shimakura, Junichi Tanahashi, Kenichiro Ono, Hajime Morimoto, Tatsuya Sakashita
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Patent number: 6075508Abstract: A display control apparatus includes a storage unit for storing display data at each position corresponding to a display screen of a display device, a setting unit for setting a read start position of the display data from the storage unit, and a data supply unit for reading out display data in a predetermined amount from the storage unit on the basis of the read start position set by the setting unit and supplying the readout display data to the display device. The read start position set by the setting unit is set on the basis of the display data stored in the storage unit. A display control method is also disclosed.Type: GrantFiled: April 16, 1997Date of Patent: June 13, 2000Assignee: Canon Kabushiki KaishaInventors: Kenichiro Ono, Toshiyuki Nobutani, Masami Shimakura, Junichi Tanahashi, Hajime Morimoto, Tatsuya Sakashita, Eiichi Matsuzaki
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Patent number: 5926159Abstract: A display control apparatus includes a memory for storing information supplied from a processing apparatus, a detector for detecting a storage portion of the information, a display controller for performing display on a display device on the basis of the information stored in the portion detected by the detector, and a limiting unit for limiting the portion detected by the detector.Type: GrantFiled: February 27, 1995Date of Patent: July 20, 1999Assignee: Canon Kabushiki KaishaInventors: Eiichi Matsuzaki, Kenzoh Ina, Toshiyuki Nobutani, Masami Shimakura, Junichi Tanahashi, Kenichiro Ono, Hajime Morimoto, Tatsuya Sakashita
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Patent number: 5907329Abstract: It can be determined without visually observing the display screen of a display device whether image conversion processing in a conversion circuit for outputting image data to the display device is being performed normally. The conversion circuit extracts data at a position designated from a host apparatus from image data output to the display device, and outputs the extracted data to the host apparatus. In the host apparatus, image data obtained upon normal conversion in the conversion circuit is prepared in advance, and this image data is collated with the data sent from the conversion circuit to determine whether the operation of the conversion circuit is normal.Type: GrantFiled: February 20, 1996Date of Patent: May 25, 1999Assignee: Canon Kabushiki KaishaInventors: Toshiyuki Nobutani, Masami Shimakura, Hajime Morimoto
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Patent number: 5880702Abstract: An image is displayed in an optimum state in accordance with the state of a display. For this purpose, an FLCD interface mounted in an information processing apparatus and an FLCD for actually displaying an image are connected through a data transfer bus for transferring image data to be displayed and a serial communication line for performing communications between them. When the FLCD detects a change in its own state, this information is supplied to a CPU of the FLCD interface through the serial communication line. An instruction for changing, e.g., the operating mode is also transmitted from the FLCD interface to the FLCD through the serial communication line.Type: GrantFiled: October 17, 1995Date of Patent: March 9, 1999Assignee: Canon Kabushiki KaishaInventors: Hajime Morimoto, Taketo Hasegawa, Toshiyuki Nobutani, Masami Shimakura, Junichi Tanahashi, Kenichiro Ono, Tatsuya Nakajima, Eiichi Matsuzaki
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Patent number: 5838291Abstract: A high quality display image is displayed on a screen by providing an; image area information generator means (203) for generating image area information for designating an area for displaying binarization image data to be obtained by image processing of image data in the multi-level frame buffer on the screen and the area for displaying binarization image data to be obtained by approximate color conversion, based on a computer software, and a processor for processing the image data based on the image area information.Type: GrantFiled: March 2, 1995Date of Patent: November 17, 1998Assignee: Canon Kabushiki KaishaInventors: Masamichi Ohshima, Kenzoh Ina, Toshiyuki Nobutani, Masami Shimakura, Junichi Tanahashi, Kenichiro Ono, Hajime Morimoto, Tatsuya Sakashita, Eiichi Matsuzaki
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Patent number: 5736981Abstract: A display control apparatus for a display device, capable of updating a display state for a display element subjected to a change in display updating, includes a display data memory for storing display data, and a display controller capable of sequentially reading out the display data stored in the memory and transferring the readout display data to the display device at a predetermined period and capable of performing a partial rewrite operation of the display data stored in the memory.Type: GrantFiled: September 6, 1996Date of Patent: April 7, 1998Assignee: Canon Kabushiki KaishaInventors: Toshiyuki Nobutani, Masami Shimakura, Junichi Tanahashi, Kenichiro Ono, Hajime Morimoto, Tatsuya Sakashita, Eiichi Matsuzaki
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Patent number: 5613103Abstract: A display controller includes a memory for storing data to be displayed on a display, a unit for supplying data to the memory, a first flag group for indicating a line on the display screen of the display corresponding to data supplied by the data supplying unit, a second flag group for indicating a plurality of the first flag groups, a detector for detecting the status of the display, a selector for selecting the first or second flag in accordance with the status of the display detected by the detector, and a display control unit for reading data designated by the first or second flag selected by the selector from the memory, and displaying the data on the display.Type: GrantFiled: May 18, 1993Date of Patent: March 18, 1997Assignee: Canon Kabushiki KaishaInventors: Toshiyuki Nobutani, Kenzoh Ina, Masami Shimakura, Junichi Tanahashi, Kenichiro Ono, Hajime Morimoto, Tatsuya Sakashita, Eiichi Matsuzaki
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Patent number: 5608910Abstract: An information processing system includes (i) a memory medium for storing a control program that includes a region for storing information indicative of its version and (ii) an apparatus for effecting at least one of recording of information on and reproduction of information from the memory medium. That apparatus includes (i) a rewritable memory for storing a control program for controlling that apparatus, the control program including a region for storing information indicative of its version, (ii) a comparing device for comparing the version of the control program stored in the rewritable memory with the version of the control program stored in the memory medium and (iii) a device for replacing a control program of an older version with a control program of a newer version, in conformity with the comparison.Type: GrantFiled: May 9, 1994Date of Patent: March 4, 1997Assignee: Canon Kabushiki KaishaInventor: Masami Shimakura
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Patent number: 5537552Abstract: An information reproducing apparatus for reproducing recorded data includes a buffer, a control device and a determining device. The buffer stores data blocks read out from a recording medium and includes first and second storage areas having respectively discontinuous storing and read addresses. The apparatus is controlled to execute in parallel a first process for storing the data blocks into the buffer and a second process for reading out the data blocks stored in the buffer to transfer the data blocks to a host apparatus. The determining device determines whether there are data in the first storage area to be transferred to the host apparatus by comparing a storing address in the buffer of the data which are being stored into the first storage area with a read address in the buffer of the data which are being read out from the first storage area. The first process is controlled so that a predetermined data block which has been read out from the recording medium is stored into the second storage area.Type: GrantFiled: August 17, 1993Date of Patent: July 16, 1996Assignee: Canon Kabushiki KaishaInventors: Yutaka Ogasawara, Yoshitaka Ogino, Masami Shimakura
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Patent number: 4809214Abstract: There is an information searching apparatus comprising: a photo disc device in which a plurality of image files are stored; a selecting circuit to select and read out one or a plurality of image files from among the image files stored in the photo disc device in accordance with a predetermined condition; a second memory device such as a semiconductor memory or a photo magnetic disc device to store the one or a plurality of image files read out by the selecting circuit; and a controller to control the readout of the image files from the photo disc device in accordance with the memory capacity of the second memory device and with the information quantity of the image files selected by the selecting circuit. In this apparatus, the search and readout of the image files are controlled by different controllers, so that a desired image file can be obtained for a short time.Type: GrantFiled: July 25, 1985Date of Patent: February 28, 1989Assignee: Canon Kabushiki KaishaInventor: Masami Shimakura