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    • 2. 发明授权
    • Information transmission system using light as communication medium, information transmission method, image pickup device, and computer programmed product
    • 使用光作为通信介质的信息传输系统,信息传输方法,图像拾取装置和计算机编程产品
    • US06933956B2
    • 2005-08-23
    • US10246042
    • 2002-09-18
    • Kunio SatoNobuo Iizuka
    • Kunio SatoNobuo Iizuka
    • G09F27/00G06F3/147H04B10/11G09G5/10H04N5/232
    • G06F3/147G09G2370/16H04B10/11
    • A CPU 36 of a light emitting unit 30 fetches ith bit of transmission information TX stored in a transmission data memory 33 in synchronization with a clock signal CK from a timing generator 35. The CUP 36 determines the bit value and fetches a first pattern sequence SA from a pattern data memory 44 when the bit is logic signal 1, and fetches a second pattern sequence SB from a pattern data memory 34 when the bit is logic signal 0, and outputs the first pattern sequence SA and second pattern sequence SB to a light emitting section 37. While, a CPU 39 of a light receiving unit 40 extracts a pixel area with a time sequence luminance variation pattern from a frame image captured into a capture image buffer 46, and binarizes the luminance variation pattern, and performs logic determination. A liquid crystal display 44 displays information of a light emitting area to be overlapped with a subject image.
    • 发光单元30的CPU36与来自定时发生器35的时钟信号CK同步地读出存储在发送数据存储器33中的发送信息TX的第i位。 当该位为逻辑信号1时,CUP36确定位值并从图形数据存储器44中取出第一模式序列SA,并且当该位是逻辑信号0时,CUP36从模式数据存储器34中取出第二模式序列SB,以及 将第一图案序列SA和第二图案序列SB输出到发光部37。 而,光接收单元40的CPU 39从捕获图像缓冲器46中的帧图像中提取具有时间序列亮度变化图案的像素区域,并且对亮度变化图案进行二值化,并进行逻辑判定。 液晶显示器44显示与被摄体图像重叠的发光区域的信息。
    • 3. 再颁专利
    • Information transmission system using light as communication medium, information transmission method, image pickup device, and computer programmed product
    • 使用光作为通信介质的信息传输系统,信息传输方法,图像拾取装置和计算机编程产品
    • USRE42848E1
    • 2011-10-18
    • US11895260
    • 2007-08-23
    • Kunio SatoNobuo Iizuka
    • Kunio SatoNobuo Iizuka
    • G09G5/10H04N5/232
    • G06F3/147G09G2370/16H04B10/11
    • A CPU 36 of a light emitting unit 30 fetches ith bit of transmission information TX stored in a transmission data memory 33 in synchronization with a clock signal CK from a timing generator 35. The CUP 36 determines the bit value and fetches a first pattern sequence SA from a pattern data memory 44 when the bit is logic signal 1, and fetches a second pattern sequence SB from a pattern data memory 34 when the bit is logic signal 0, and outputs the first pattern sequence SA and second pattern sequence SB to a light emitting section 37. While, a CPU 39 of a light receiving unit 40 extracts a pixel area with a time sequence luminance variation pattern from a frame image captured into a capture image buffer 46, and binarizes the luminance variation pattern, and performs logic determination. A liquid crystal display 44 displays information of a light emitting area to be overlapped with a subject image.
    • 发光单元30的CPU36与来自定时发生器35的时钟信号CK同步地获取存储在发送数据存储器33中的发送信息TX的第i位.CUP36确定比特值并获取第一模式序列SA 当该位为逻辑信号1时,从模式数据存储器44输出,并且当位为逻辑信号0时,从模式数据存储器34取出第二模式序列SB,并将第一模式序列SA和第二模式序列SB输出到光 光接收单元40的CPU 39从捕获图像缓冲器46中的帧图像中提取具有时间序列亮度变化图案的像素区域,并对亮度变化图案进行二值化,并进行逻辑判定。 液晶显示器44显示与被摄体图像重叠的发光区域的信息。
    • 4. 发明授权
    • Network repeater, repeater controlling method and program product
    • 网络中继器,中继器控制方法和程序产品
    • US07970282B2
    • 2011-06-28
    • US12130019
    • 2008-05-30
    • Shoichi NagatomoNobuo Iizuka
    • Shoichi NagatomoNobuo Iizuka
    • H04L12/28H04L12/46
    • H04B10/1149H04W8/26H04W64/00H04W88/04
    • A bridge controller, which controls relay between terminals including emission units and addresses assigned to the terminals, acquires coordinates of a light-received element in an light receiving unit at which light emitted from an emission unit is received, and stores the acquired coordinates in a location information table memory in association with a logical location on the network. Thereafter, it is determined whether or not the stored coordinates differ from newly acquired coordinates. When it is determined that the stored coordinates differ from the newly acquired coordinates, the logical location associated with the coordinates stored in the storage unit is controlled to be changed and stored.
    • 控制终端之间的继电器的桥接控制器,包括发射单元和分配给端子的地址,获取在接收从发射单元发射的光的光接收单元中的光接收元件的坐标,并将获取的坐标存储在 与网络上的逻辑位置相关联的位置信息表存储器。 此后,确定存储的坐标是否与新获取的坐标不同。 当确定存储的坐标与新获取的坐标不同时,控制与存储在存储单元中的坐标相关联的逻辑位置以进行改变和存储。
    • 9. 发明授权
    • Method and apparatus for recording/reproducing mesh pattern data
    • 用于记录/再现网格图案数据的方法和装置
    • US5664030A
    • 1997-09-02
    • US451544
    • 1995-05-26
    • Nobuo Iizuka
    • Nobuo Iizuka
    • G06K7/016G06K7/10G06K19/06G06T9/00G06K9/20
    • G06K19/06075G06K19/06037G06K7/016G06K7/1093G06K7/1417G06K7/1473G06T9/001G06K2019/06262
    • Recorded data is read by an image sensor from a recording medium on which the data is two-dimensionally recorded in a mesh pattern, and the read data is stored in an image RAM. The stored data is subjected to data decoding and error correction to reproduce target data. A scanning reference pattern of a mesh pattern recorded on the recording medium serves as a guide when the stored recorded data read by the image sensor is reproduced by scanning in the image RAM. A reproduction apparatus has a capability of coping with a partial destruction of the scanning reference pattern. Error checking codes are added to the recording medium in addition to the target data. These items of data are recorded as an encoded image after being subjected to scrambling processing and randomization processing. The reproduction apparatus can easily cope with an error when the encoded image is reproduced.
    • 记录的数据由图像传感器从数据以网格图案二维记录的记录介质读取,读取的数据被存储在图像RAM中。 对存储的数据进行数据解码和纠错以再现目标数据。 当记录介质上记录的网格图案的扫描参考图案作为引导,当图像传感器读出的存储的记录数据通过在图像RAM中进行扫描再现时。 再现装置具有应对扫描参考图案的部分破坏的能力。 除了目标数据之外,还将错误检查码添加到记录介质。 在进行加扰处理和随机化处理之后,这些数据项被记录为编码图像。 当再现编码图像时,再现装置可以容易地处理错误。
    • 10. 发明授权
    • Method and apparatus for recording/reproducing mesh pattern data
    • 用于记录/再现网格图案数据的方法和装置
    • US5153928A
    • 1992-10-06
    • US530630
    • 1990-05-30
    • Nobuo Iizuka
    • Nobuo Iizuka
    • G06K7/016G06K7/10G06K19/06G06T9/00
    • G06K19/06075G06K19/06037G06K7/016G06K7/1093G06K7/1417G06K7/1473G06T9/001G06K2019/06262
    • Recorded data is read by an image sensor from a recording medium on which the data is two-dimensionally recorded in a mesh pattern, and the read data is stored in an image RAM. The stored data is subjected to data decoding and error correction to reproduce target data. A scanning reference pattern of a mesh pattern recorded on the recording medium serves as a guide when the stored recorded data read by the image sensor is reproduced by scanning in the image RAM. A reproduction apparatus has a capability of coping with a partial destruction of the scanning reference pattern. Error checking codes are added to the recording medium in addition to the target data. These items of data are recorded as an encoded image after being subjected to scrambling processing and randomization processing. The reproduction apparatus can easily cope with an error when the encoded image is reproduced.
    • 记录的数据由图像传感器从数据以网格图案二维记录的记录介质读取,读取的数据被存储在图像RAM中。 对存储的数据进行数据解码和纠错以再现目标数据。 当记录介质上记录的网格图案的扫描参考图案作为引导,当图像传感器读出的存储的记录数据通过在图像RAM中进行扫描再现时。 再现装置具有应对扫描参考图案的部分破坏的能力。 除了目标数据之外,还将错误检查码添加到记录介质。 在进行加扰处理和随机化处理之后,这些数据项被记录为编码图像。 当再现编码图像时,再现装置可以容易地处理错误。