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106 条记录 (耗时 0.052 秒)

    Color gradation correction method and apparatus
    11.
    发明授权
    Color gradation correction method and apparatus 失效
    彩色灰度校正方法和装置

    公开(公告)号：US5296920A

    公开(公告)日：1994-03-22

    申请号：US945626

    申请日：1992-09-16

    申请人： Shigeo Sakaue ,  Susumu Maruno ,  Haruo Yamashita ,  Yasuki Matsumoto ,  Hideshi Ishihara

    发明人： Shigeo Sakaue ,  Susumu Maruno ,  Haruo Yamashita ,  Yasuki Matsumoto ,  Hideshi Ishihara

    IPC分类号： B41J2/52 ,  G06T5/00 ,  G09G5/00 ,  G09G5/02 ,  H04N1/00 ,  H04N1/60 ,  H04N9/69 ,  H04N9/77

    CPC分类号： H04N1/00795 ,  H04N1/6027 ,  H04N9/69

    摘要： A gradation correction apparatus for processing R, G, and B input signals includes a luminance signal conversion device for obtaining the original luminance signal, which is before gamma conversion, from the input signals, a luminance gamma conversion device for gamma converting the original luminance signal to the desired gradation characteristics to obtain a gamma converted luminance signal, a correction coefficient calculation means for obtaining a ratio of the gamma converted luminance signal to the original luminance signal, a first RGB operation means for multiplying the ratio by each of the R, G, and B input signals for obtaining primary gradation-corrected R, G, and B signals; a color difference signal operation means for producing a difference between each of the R, G, and B input signals and the original luminance signal; a second RGB operation means for adding the gamma converted luminance signal to each of the difference for obtaining secondary gradation-corrected R, G, and B signals; and an RGB determination means for obtaining final gradation-corrected R, G, B signals based on the primary and secondary gradation-corrected R, G, and B signals.

    摘要翻译： 用于处理R，G和B输入信号的灰度校正装置包括用于从输入信号获得伽马变换之前的原始亮度信号的亮度信号转换装置，用于伽马转换原始亮度信号的亮度伽玛转换装置 获得所需的灰度特性以获得伽马转换的亮度信号;校正系数计算装置，用于获得伽马转换的亮度信号与原始亮度信号的比率;第一RGB操作装置，用于将该比率乘以每个R，G 和B输入信号，用于获得初级灰度校正的R，G和B信号; 用于产生R，G和B每个输入信号与原始亮度信号之间的差的色差信号操作装置; 第二RGB操作装置，用于将伽马转换的亮度信号加到每个差值上，以获得二次灰度校正的R，G和B信号; 以及RGB确定装置，用于基于一次和二次灰度校正的R，G和B信号获得最终灰度校正的R，G，B信号。

    Method and apparatus for forming color images by converting a color signal to a further color density signal
    12.
    发明授权
    Method and apparatus for forming color images by converting a color signal to a further color density signal 失效
    用于通过将颜色信号转换为另外的颜色浓度信号来形成彩色图像的方法和装置

    公开(公告)号：US5448379A

    公开(公告)日：1995-09-05

    申请号：US077930

    申请日：1993-06-18

    申请人： Hideshi Ishihara ,  Haruo Yamashita ,  Yasuki Matsumoto

    发明人： Hideshi Ishihara ,  Haruo Yamashita ,  Yasuki Matsumoto

    IPC分类号： G03F3/08 ,  H04N1/60 ,  H04N1/46

    CPC分类号： H04N1/6058

    摘要： Method and apparatus for forming color images on paper using a sublimation type thermal transfer full-color printer using three color inks of yellow, magenta, and cyan. A color input signal to be printed is subjected to a first color correction process. The first color correction process performs a color correction using linear and non-linear masking operations and produces first ink-density signals. The first ink-density signals are judged for reproducibility by the printer by determining whether the signals fit within a gamut of colors. If judged to be reproducible, the first ink-density signals are passed on to the printer. However, if the first ink-density signals are judged to be outside the gamut of colors, the signals are subjected to a second correction process. The second color correction process first obtains a target color for color reproduction by the printer. Next, the second process sets ink-density signals, obtains predicted colors realized by the ink-density signals, chooses an output ink-density signal such that an evaluation value calculated by the target color and the predicted color becomes minimal, and produces a second ink-density signal that results in optimal colors within the range of colors reproducible by the printer.

    摘要翻译： 使用使用黄色，品红色和青色的三色墨水的升华型热转印全色打印机在纸上形成彩色图像的方法和装置。 要打印的彩色输入信号经受第一颜色校正处理。 第一颜色校正处理使用线性和非线性掩蔽操作执行颜色校正，并产生第一墨水密度信号。 通过确定信号是否适合色域范围，由打印机判断第一墨密度信号的再现性。 如果判断为可再现，则将第一墨水密度信号传递到打印机。 然而，如果第一墨水密度信号被判断为在色彩范围之外，则信号经受第二校正处理。 第二颜色校正处理首先获得打印机的颜色再现的目标颜色。 接下来，第二处理设置墨密度信号，获得由墨密度信号实现的预测颜色，选择输出墨密度信号，使得由目标颜色和预测颜色计算的评估值变得最小，并产生第二 墨水密度信号，在打印机可重现的颜色范围内产生最佳颜色。

    Color image forming apparatus
    13.
    发明授权
    Color image forming apparatus 失效
    彩色图像形成装置

    公开(公告)号：US5315381A

    公开(公告)日：1994-05-24

    申请号：US879455

    申请日：1992-05-04

    申请人： Haruo Yamashita ,  Hideshi Ishihara ,  Yasuki Matsumoto

    发明人： Haruo Yamashita ,  Hideshi Ishihara ,  Yasuki Matsumoto

    IPC分类号： H04N1/60 ,  H04N1/46 ,  G03F3/08

    CPC分类号： H04N1/6016 ,  H04N1/6022

    摘要： In order to realize a method of color correction which is capable of performing the UCR compensating for the non-linearity of the superposed densities and the non-linear color correction meeting the non-linearity of the superposed densities at high accuracy with a configuration in substantially the same scale as the conventional linear UCR and linear masking techniques, there is provided a color correction method comprising first conversion means for converting the C, M, Y density information by a monotonously incremental non-linear function with a similarly monotonously incremental derivative, matrix means, and second conversion means for converting the same density information by a monotonously incremental non-linear function with a monotonously decremental derivative. In another aspect, there is provided four-color reproduction means comprising first conversion means for converting the C, M, Y information by a monotonously incremental non-linear function with a similarly monotonously incremental derivative, second conversion means, for effecting the conversion with a monotonously incremental non-linear function with a monotonously decremental derivative, and black separation means, subtraction means and matrix means interposed between the first and second conversion means for controlling the densities of the four inks to implement color recording.

    摘要翻译： 为了实现一种色彩校正方法，该方法能够以高精度对叠加密度的非线性和非线性颜色校正的非线性进行补偿，以非常线性的方式满足重叠密度的非线性， 与常规线性UCR和线性掩蔽技术相同的尺度，提供了一种颜色校正方法，包括用于通过单调递增的非线性函数用类似的单调增量导数矩阵来转换C，M，Y密度信息的第一转换装置 以及第二转换装置，用于通过单调递增的非线性函数以单调递减的方式转换相同的密度信息。 在另一方面，提供了四色再现装置，其包括：第一转换装置，用于通过单调递增的非线性函数用相似的单调递增导数转换C，M，Y信息，第二转换装置，用于用 具有单调递减的单调增量非线性函数，以及插入在第一和第二转换装置之间的黑色分离装置，减法装置和矩阵装置，用于控制四种墨水的浓度以实现彩色记录。

    Encryption device, key distribution device and key distribution system
    14.
    发明授权
    Encryption device, key distribution device and key distribution system 有权
    加密设备，密钥分发设备和密钥分发系统

    公开(公告)号：US08275998B2

    公开(公告)日：2012-09-25

    申请号：US12953676

    申请日：2010-11-24

    申请人： Toshihisa Nakano ,  Hideshi Ishihara ,  Makoto Tatebayashi

    发明人： Toshihisa Nakano ,  Hideshi Ishihara ,  Makoto Tatebayashi

    IPC分类号： H04L29/06 ,  H04L9/32 ,  G06F21/00 ,  G06F11/30 ,  G06F12/14

    CPC分类号： H04L9/083 ,  H04L9/3247 ,  H04L2209/60

    摘要： A key distribution system distributes key data for using content to a second encryption device that has been legitimately outsourced processing by a first encryption device. The first encryption device acquires permission information indicating that the first encryption device has permission to use the content, generates certification information by making an irreversible alteration the to permission information, and transmits the permission information and the certification information to the second encryption device. The second encryption device receives the permission information and the certification information, sends them to a key distribution device, and acquires the key data from the key distribution device. The key distribution device receives the permission information and the certification information, judges whether or not the certification information was generated by the by the first encryption device, and if judging in the affirmative, transmits the key data to the second encryption device.

    摘要翻译： 密钥分配系统将用于使用内容的密钥数据分配给已被第一加密设备合法外包处理的第二加密设备。 第一加密装置获取表示第一加密装置具有允许使用内容的许可信息，通过对许可信息进行不可逆变更来生成认证信息，并将许可信息和认证信息发送到第二加密装置。 第二加密装置接收许可信息和认证信息，将其发送到密钥分发装置，并从密钥分发装置获取密钥数据。 密钥分配装置接收许可信息和认证信息，判断认证信息是否由第一加密装置生成，并且如果肯定地判断，则将密钥数据发送到第二加密装置。

    Content reproduction apparatus
    15.
    发明授权
    Content reproduction apparatus 有权
    内容再现装置

    公开(公告)号：US08140675B2

    公开(公告)日：2012-03-20

    申请号：US10580178

    申请日：2004-12-20

    申请人： Kaoru Yokota ,  Motoji Ohmori ,  Koichi Morioka ,  Hideshi Ishihara ,  Makoto Tatebayashi

    发明人： Kaoru Yokota ,  Motoji Ohmori ,  Koichi Morioka ,  Hideshi Ishihara ,  Makoto Tatebayashi

    IPC分类号： G06F15/173

    CPC分类号： G11B20/00086 ,  G11B20/10

    摘要： A content reproduction apparatus (1) which reproduces digital contents, and includes a device key storage unit (110) holding a device key (110a) specific to the content reproduction apparatus (1) in a manner that does not allow access from outside the content reproduction apparatus (1). The content reproduction apparatus (1), also includes a device ID storage unit (19) holding device key index information (19a) that is in a one-to-one association with a device key (110a), an instruction code receiving unit (14a) receiving an instruction code to output index information, a device key index information obtainment processing unit (10a) outputting, to outside, the device key index information (19a) stored in the device ID storage unit (19) based on the instruction, and a device key index information output processing unit (11a).

    摘要翻译： 一种再现数字内容的内容再现装置（1），并且包括以不允许从内容外部访问的方式保存特定于内容再现装置（1）的设备密钥（110a）的设备密钥存储单元（110） 再现装置（1）。 内容再现装置（1）还包括与设备密钥（110a）一一对应的设备密钥索引信息（19a）的设备ID存储单元（19），指令代码接收单元 接收用于输出索引信息的指令代码的设备密钥索引信息获取处理单元，基于该指令将存储在设备ID存储单元中的设备密钥索引信息（19a）输出到外部， 和设备密钥索引信息输出处理单元（11a）。

    Encryption device a decrypting device a secret key generation device a copyright protection system and a cipher communication device
    18.
    发明授权
    Encryption device a decrypting device a secret key generation device a copyright protection system and a cipher communication device 失效
    加密装置，解密装置，密钥生成装置，版权保护系统和密码通信装置

    公开(公告)号：US07542568B2

    公开(公告)日：2009-06-02

    申请号：US10490346

    申请日：2002-09-11

    申请人： Motoji Ohmori ,  Makoto Tatebayashi ,  Takahiro Nagai ,  Hideshi Ishihara

    发明人： Motoji Ohmori ,  Makoto Tatebayashi ,  Takahiro Nagai ,  Hideshi Ishihara

    IPC分类号： H04N7/167

    CPC分类号： G11B20/00086 ,  H04L9/0891 ,  H04L9/3268 ,  H04L2209/603

    摘要： An encryption device, a decrypting device, a secret key generation device, a copyright protection system and a cipher communication device including: a CRL memory unit memorizing a CRL, a device key ring memory unit memorizing a specific device key KD_A in every IC card used in a decrypting device, a content key memory unit memorizing a content key Kc, which is a secret key for decrypting content, and a hashing function processing unit calculating a hashing value of the CRL memorized in the CRL memory unit. The devices further including an Ex-OR unit carrying out an exclusive OR between the hashing value and the device key KD_A memorized in the device key ring memory unit, and an Enc unit encrypting the content key Kc memorized in the content key memory unit using an output value of an Ex-OR unit.

    摘要翻译： 一种加密装置，解密装置，秘密密钥生成装置，版权保护系统和密码通信装置，包括：CRL存储单元，存储CRL;存储每个使用的IC卡中的特定设备密钥KD_A的设备密钥存储单元; 在解密装置中，存储作为用于解密内容的秘密密钥的内容密​​钥Kc的内容密钥存储单元和计算存储在CRL存储单元中的CRL的散列值的散列函数处理单元。 所述设备还包括执行散列值和存储在设备密钥环存储器单元中的设备密钥KD_A之间的异或的Ex-OR单元，以及Enc装置，用于使用存储在内容密钥存储单元中的内容密钥存储单元 Ex-OR单元的输出值。