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    Infrared imaging apparatus
    4.
    发明专利
    Infrared imaging apparatus 有权

    公开(公告)号：JP2004117254A

    公开(公告)日：2004-04-15

    申请号：JP2002282831

    申请日：2002-09-27

    Applicant: Fujitsu Ltd ,  富士通株式会社

    Inventor： NAKAMURA OSAMU ,  MATSUMOTO YASUSHI ,  KAMATA MASAKI

    IPC: G01J1/44 ,  H04N5/33 ,  H04N5/335 ,  H04N5/353 ,  H04N5/361 ,  H04N5/365 ,  H04N5/378

    Abstract: PROBLEM TO BE SOLVED: To provide an infrared imaging apparatus for simultaneously correcting a shading phenomenon and a dispersion of characteristics of a detecting element.
    SOLUTION: This infrared imaging apparatus is constituted of: an A/D converter 11 which converts an output of an infrared detector 10 into digital signals; a dividing circuit 14 in which an output of A/D converter 11 is converted into a housing component, and a ratio of the converted housing component to output level of all detecting element is calculated; a memory 15 which stores a difference of the output profile of the housing component and the output profile of the scene incident component; a memory 16 stores the output profile of the scene incident component; a multiplying circuit 17 which multiplies the ratio of the output level of the housing component by a memory value; an adding circuit 18 which adds a result of the multiplication to the value of connection data 2 memory 16; and a dividing circuit 19 which subtracts the output of the infrared detecting part depending on the results of the adding circuit 18.
    COPYRIGHT: (C)2004,JPO

    MEMORY ACCESS METHOD AND DEVICE
    5.
    发明专利
    MEMORY ACCESS METHOD AND DEVICE 失效

    公开(公告)号：JP2001125834A

    公开(公告)日：2001-05-11

    申请号：JP30517099

    申请日：1999-10-27

    Applicant: FUJITSU LTD

    Inventor： TANI SHIGEO ,  SHIMADA HIROKAZU ,  AZUMI RYOJI ,  KONDO HIROKI ,  KINOSHITA MITSURU ,  MATSUMOTO YASUSHI ,  YAMAZAKI SHOSAKU ,  SHITAMAE HIROKI ,  NAKAMURA OSAMU ,  NAKAMURA YOSHINORI

    IPC: G06F12/16 ,  G06F12/00 ,  G06F12/06

    Abstract: PROBLEM TO BE SOLVED: To provide a memory access method and a device capable of securely holding and updating the storage data of a flash ROM or the like. SOLUTION: In this memory access device interposed between a CPU 101 and a data rewritable nonvolatile memory 12 for operating the execution control of a command concerned with various memory access from the CPU 101, the command concerned with the memory access from the CPU 101 is analyzed, and a state signal concerned with the execution control of the corresponding memory access and the control signal of the memory access corresponding to the state signal are generated based on the analyzed command, and the real operating state of the memory 12 is monitored, and the state signal is sequentially changed, and the state of the completion of the memory access is imported to the CPU 101 based on the final change of the state signal.

    IMAGE PICKUP DEVICE AND IMAGE INFORMATION CORRECTION DEVICE
    6.
    发明专利
    IMAGE PICKUP DEVICE AND IMAGE INFORMATION CORRECTION DEVICE 失效

    公开(公告)号：JPH09130677A

    公开(公告)日：1997-05-16

    申请号：JP27907795

    申请日：1995-10-26

    Applicant: FUJITSU LTD

    Inventor： NAGABUCHI KENJI ,  NAKAMURA OSAMU ,  SHITAMAE HIROKI ,  KAMATA MASAKI

    IPC: G03B41/00 ,  H04N1/00 ,  H04N1/40 ,  H04N1/411 ,  H04N1/413 ,  H04N5/33 ,  H04N5/335 ,  H04N5/367 ,  H04N5/378

    Abstract: PROBLEM TO BE SOLVED: To make value information, which shows whether a picture element to apply each picture element value is normal or not, flexibly adaptive to the position of the picture element on an image pickup plane by providing picture element information contained corresponding to the order of scanning. SOLUTION: A storage device 13 previously stores binary information, which shows whether the plural picture elements arranged on the image pickup plane of a two-dimensional array infrared detector 11 are normal or not, corresponding to the order of scanning and a synchronizing controller 15 drives the two-dimensional array infrared detector 11 according to the order of scanning. At the same time, that binary information is read out. A multiplexer 17 generates image information by correspondently multiplexing the picture element value outputted from the two-dimensional array infrared detector 11 driven like this and the binary information read from this storage device 13. Concerning a device for fetching and processing that image information, this device can be constituted without mounting a memory for previously storing this binary information and a hardware for performing addressing and synchronizing control for referring to that memory.

    CORRECTING METHOD FOR CHARACTERISTIC OF INFRARED RAY SENSING ELEMENT
    8.
    发明专利
    CORRECTING METHOD FOR CHARACTERISTIC OF INFRARED RAY SENSING ELEMENT 失效

    公开(公告)号：JPH04105024A

    公开(公告)日：1992-04-07

    申请号：JP22278390

    申请日：1990-08-24

    Applicant: FUJITSU LTD

    Inventor： SHITAMAE HIROKI ,  NAKAMURA OSAMU ,  NISHIHATA MAKOTO

    IPC: G01J3/02 ,  G01J1/02 ,  G01J1/44 ,  G01N21/27

    Abstract: PURPOSE:To lessen dispersion of the sensitivity from an infrared ray sensing element to element by calculating the reference output value, in accordance with the output signal value, from two reference output values, displacement from the regional boundary till the output signal value, and the width of region, and by emitting the result from calculation as a correction value. CONSTITUTION:When an m-bit output signal value Xi is fed from an infrared sensing element, a region calculating part 12 generates a displacement D from the regional boundary value and regional No. to which the signal value Xi belongs. A reference output value reading pat 13 reads two reference output values b1, b1+l according to the boundary value of the region out of a reference output value memory part 11, and these read values are entered into a corrective calculation part 14. This calculating part 14 performs a proportional calculation using the entered two reference output values b1, b1+l, displacement D, and the width W of region to determine the reference output value Yi={D.(b1+l-bi)/W}+bi in the reference input characteristics according to the output signal value Xi of infrared ray sensing element, and the output value Yi is given as a corrective value. This lessens dispersion of the sensitivity from infrared sensing element to element.

    OFFSET VALUE MEASUREMENT AND OFFSET CORRECTION METHOD FOR INFRARED RAY IMAGE PICKUP DEVICE
    9.
    发明专利
    OFFSET VALUE MEASUREMENT AND OFFSET CORRECTION METHOD FOR INFRARED RAY IMAGE PICKUP DEVICE 失效

    公开(公告)号：JPH02190083A

    公开(公告)日：1990-07-26

    申请号：JP849489

    申请日：1989-01-19

    Applicant: FUJITSU LTD

    Inventor： MATSUURA YOSHIO ,  NAKAMURA OSAMU

    IPC: G01J1/44 ,  G01J5/48 ,  H04N5/228 ,  H04N5/232 ,  H04N5/33

    Abstract: PURPOSE:To measure an offset value in real time with high accuracy by calculating an offset value of each element of a detector from each video acquisition data detected depending on two kinds of state with a different aperture rate and using a smoothing filter so as to improve the S/N of the offset value and extracting the video image. CONSTITUTION:The 1st and 2nd states with a different aperture are obtained alternately continuously by an aperture rate variable device 51 provided in an infrared ray optical system optical path 50. An arithmetic processing means 53 calculates the offset value of each element of a detector 52 from each video acquisition data detected by the detector 52 depending on the 1st and 2nd states and a smoothing filter improves the S/N of the offset value and the resulting image data is extracted. Thus, the offset is measured automatically in real time with high accuracy without disturbing the acquisition of video image.

    SYSTEM FOR DETECTING FAULTY SECTION
    10.
    发明专利
    SYSTEM FOR DETECTING FAULTY SECTION 失效

    公开(公告)号：JPS61154243A

    公开(公告)日：1986-07-12

    申请号：JP27753484

    申请日：1984-12-26

    Applicant: FUJITSU LTD

    Inventor： INOUE YUKINORI ,  KITANO YOSHIHIRO ,  NAKAHARA YASUHIRO ,  NEGISHI HITOSHI ,  NAKAMURA OSAMU

    Abstract: PURPOSE:To specify correctly a faulty section by providing duplicatedly an error detection code area in a packet and allowing a packet sender device to set the result operating an operation object data to the 1st area and set the result of the code itself to the error detection code operated additionally to the 2nd area. CONSTITUTION:The error detection code area in the packet is provided duplicatedly, and the packet sender device sets the result of operation of an operation object data to generate an error detection code CK1 to the 1st area and sets the result of additional operation of the code itself to the error detection code CK1 set to the 1st area to the 2nd area. Repeaters except the packet sender repeater apply the operation of an EC2 section, check the result of operation and compare/check the result of operation with the error detection code CK1 set to the 2nd area. Then the result of operation resets the 2nd area. Since all the repeaters apply resetting, no error is propagated to specify the transmission error causing section.

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