Optical transmission system
    1.
    发明授权
    Optical transmission system 失效
    光传输系统

    公开(公告)号:US5351148A

    公开(公告)日:1994-09-27

    申请号:US67217

    申请日:1993-05-26

    摘要: An optical transmission system provides digital signals which have added bits for error correction by an encoder which are converted into 16-QAM signals with a predetermined carrier frequency by a modulator, and then frequency division muitiplexed with an AM signal so as to be inputted to an optical-electric converter. When the total sum of the light modulation indices of signals to be transmitted is over 1, a light modulation index of an M-QAM signal is set by calculating the light modulation index that marks the onset of diverging from the error rate given by a ratio between receiver noise power and the M-QAM signal power while considering a light modulation index corresponding to a usable transmission margin. The multiplexed signals are transmitted via optical fiber and converted into electric signals by a photo receiver, demodulated by a demodulator, and then outputted after having their errors corrected by an error corrector.

    摘要翻译: 光传输系统提供数字信号,该信号已经由编码器添加了用于纠错的比特,其通过调制器被转换成具有预定载波频率的16-QAM信号,然后与AM信号进行频分复用以被输入到 光电转换器。 当要发送的信号的光调制指数的总和超过1时,通过计算从由比率给出的误码率来标记发散开始的光调制指数来设置M-QAM信号的光调制指数 在接收机噪声功率和M-QAM信号功率之间考虑与可用传输余量对应的光调制指数。 多路复用信号通过光纤传输并通过光接收机转换成电信号,由解调器解调,然后在由误差校正器校正其误差之后输出。

    Pay-channel transmission system for CATV
    2.
    发明授权
    Pay-channel transmission system for CATV 失效
    有线电视付费频道传输系统

    公开(公告)号:US5204767A

    公开(公告)日:1993-04-20

    申请号:US772486

    申请日:1991-10-07

    摘要: A pay-channel transmission system for a CATV has an optical transmission unit and an optical receiver unit. The optical transmission unit includes pay-channel television signals optically multiplexed by a .lambda..sub.1 wavelength semiconductor laser and non-pay-channel television signals optically multiplexed by a .lambda..sub.2 wavelength semiconductor laser. The optical receiver unit includes an optical filter for filtering the .lambda..sub.1 wavelength data. Thus, a non-subscriber having the optical filter is prevented from receiving the pay-channel television signals, and a subscriber having no optical filter is able to receive both the pay-channel television signals and non-pay-channel television signals.

    摘要翻译: 用于CATV的付费频道传输系统具有光传输单元和光接收单元。 光传输单元包括通过λ1波长半导体激光器光复用的付费频道电视信号和通过λ2波长半导体激光器光复用的非付费频道电视信号。 光接收器单元包括用于滤波λ1波长数据的滤光器。 因此,防止具有滤光器的非用户接收付费频道电视信号,并且没有滤光器的用户能够接收付费频道电视信号和非付费频道电视信号两者。

    Optical transmission unit
    3.
    发明授权
    Optical transmission unit 失效
    光传输单元

    公开(公告)号:US5825518A

    公开(公告)日:1998-10-20

    申请号:US613226

    申请日:1996-03-08

    IPC分类号: H04J14/02

    CPC分类号: H04J14/0298

    摘要: An AM signal source frequency-multiplexes and outputs a plurality of AM signals. A soft clipper, which is formed by an amplifier or the like, nonlinearly loosely limits a large amplitude portion (impulsively changed portion) of the frequency-multiplexed AM signal by using its saturation property. Thereafter, an attenuator performs level adjustment for setting the signal at a prescribed degree of optical modulation. On the other hand, a 16QAM signal source frequency-multiplexes and outputs a plurality of 16QAM signals having different carrier frequencies. A frequency multiplexing part further frequency-multiplexes the AM multiplex signal with the 16QAM multiplex signal. An optical transmitter intensity-modulates a laser output beam with the frequency multiplex signal from the frequency multiplexing part and transmits the same. No clipping distortion occurs at this time. An optical signal from the optical transmitter is transmitted to a receiving system through an optical fiber member and is demodulated.

    摘要翻译: AM信号源对多个AM信号进行频率复用并输出。 由放大器等形成的软削波器通过使用其饱和特性非线性地宽松地限制频率复用的AM信号的大幅度部分(脉冲变化部分)。 此后,衰减器进行电平调整,以在规定的光调制度下设置信号。 另一方面,16QAM信号源对具有不同载波频率的多个16QAM信号进行频率复用并输出。 频率复用部分对AM复用信号与16QAM多路复用信号进行多路复用。 光发射机利用来自频率复用部分的频率复用信号强度调制激光输出光束并传输。 此时不产生剪切失真。 来自光发送器的光信号通过光纤部件发送到接收系统,并被解调。

    Picture image distributing apparatus provided within passenger moving
vehicle
    4.
    发明授权
    Picture image distributing apparatus provided within passenger moving vehicle 失效
    设置在乘客移动车辆内的图像分配装置

    公开(公告)号:US5539657A

    公开(公告)日:1996-07-23

    申请号:US54195

    申请日:1993-04-30

    CPC分类号: H04N7/16 H04N7/22

    摘要: A picture image distributing apparatus provided within a passenger moving vehicle, consists of: a head end portion for multichannel FDM picture image signals; an electrical optical for converting the FDM picture image signals into optical signals; an optical amplifier for optically amplifying the optical outputs; one optical fiber transmission path connected to optical taps of unequal distribution for branching halfway on one portion of the optical power except for the branching at a final point, an optical/electrical converter for receiving optical signals branched at the final point or halfway so as to convert them into electrical signals; and a passenger seat picture image receiving terminal connected to the optical/electrical converter so as to receive the electrical signals.

    摘要翻译: 设置在乘客移动车辆内的图像分配装置包括:用于多通道FDM图像信号的头端部分; 用于将FDM图像信号转换成光信号的电光学装置; 用于光学放大光输出的光放大器; 一个光纤传输路径连接到不同分布的光学抽头,用于除了最终点之间的分支之外的一部分光功率的一部分上的分支;光/电转换器,用于接收在最终点或中途分支的光信号,以便 将其转换为电信号; 以及连接到光/电转换器的乘客座位图像接收终端,以便接收电信号。

    Method of protecting leakage of information, and information processing apparatus and driver program which implement the method
    5.
    发明授权
    Method of protecting leakage of information, and information processing apparatus and driver program which implement the method 有权
    保护信息泄露的方法,实施该方法的信息处理装置和驱动程序

    公开(公告)号:US08451474B2

    公开(公告)日:2013-05-28

    申请号:US11283145

    申请日:2005-11-18

    IPC分类号: G06F3/12

    摘要: A host computer which generates a print job subjected to printing by a printer stores a drawing command output from an application in a spool file via a graphic engine. A spool system, the graphic engine, and a job chasing function processing unit execute a chasing data generation process by using the drawing command. The spool system, the graphic engine, and a graphics control unit execute a print data generation process by using the same drawing command. At this time, the drawing command is read out and output so as to successively execute the chasing data generation process and print data generation process. With this configuration, there are provided a method of protecting leakage of information by which the contents of information can be reliably chased without requiring either a special application or a device having a special function and posing any restriction on the read or output path, and an information processing apparatus and driver program which implement the method.

    摘要翻译: 生成由打印机打印的打印作业的主计算机经由图形引擎将从应用输出的绘图命令存储在假脱机文件中。 卷线器系统,图形引擎和作业追踪功能处理单元通过使用绘图命令执行追踪数据生成处理。 卷轴系统,图形引擎和图形控制单元通过使用相同的绘制命令执行打印数据生成处理。 此时,绘制命令被读出并输出,以便连续执行追踪数据生成处理和打印数据生成处理。 利用这种配置,提供了一种保护信息泄漏的方法,其中信息内容可以可靠地追踪,而不需要特殊应用或具有特殊功能的设备,并且对读取或输出路径构成任何限制,并且 执行该方法的信息处理装置和驱动程序。

    INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM
    6.
    发明申请
    INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM 有权
    信息处理设备,信息处理方法和程序

    公开(公告)号:US20120254898A1

    公开(公告)日:2012-10-04

    申请号:US13430386

    申请日:2012-03-26

    申请人: Hiroaki Nakata

    发明人: Hiroaki Nakata

    IPC分类号: G06F9/44

    摘要: The present invention relates to an information processing apparatus, in which an operating system (OS) is executable in such a way that a component operable based on administrator's authority can realize installation of a device driver. The information processing apparatus includes a selection unit configured to select a peripheral device that serves as an output destination of a processing request if the processing request is received from a user via an application, and a management unit configured to control setting processing for a device driver applicable to the selected peripheral device to use the peripheral device. The management unit is configured to request a first component operable on the OS based on administrator's authority to perform setting processing for a device driver applicable to the selected peripheral device.

    摘要翻译: 信息处理装置技术领域本发明涉及一种信息处理装置,其中操作系统(OS)可以以基于管理员权限可操作的部件实现设备驱动程序的安装的方式执行。 信息处理装置包括:选择单元,被配置为如果经由应用从用户接收到处理请求,则选择用作处理请求的输出目的地的外围设备;以及管理单元,被配置为控制设备驱动程序的设置处理 适用于选定的外围设备使用外围设备。 管理单元被配置为基于管理员的权限请求在OS上操作的第一组件,以对适用于所选择的外围设备的设备驱动程序执行设置处理。

    Device, method and program for determining density of barcode
    7.
    发明授权
    Device, method and program for determining density of barcode 有权
    用于确定条形码密度的装置,方法和程序

    公开(公告)号:US08240551B2

    公开(公告)日:2012-08-14

    申请号:US12760711

    申请日:2010-04-15

    申请人: Hiroaki Nakata

    发明人: Hiroaki Nakata

    IPC分类号: H04N1/40 G06F17/00

    摘要: The accuracy of reading a barcode embedded in a printed document is maintained, and at the same time, the amount of toner and the like consumed is reduced. When document information read by scanning is analyzed and the density of the document information is higher than a predetermined threshold vale, that is, when the printed document has a space enough to contain the barcode, the density of the barcode is set such that the density of the barcode is decreased as compared with a case where the density of the document information is lower than the predetermined threshold value. By changing the size of dots and the distance between the dots and thus decreasing the density of the barcode, it is possible to reduce the amount of toner and the like consumed. Then, the set barcode is synthesized with the document information, and the synthesized image is output.

    摘要翻译: 维持读入印刷文件中的条形码的准确性,并且同时消耗的调色剂量等减少。 当通过扫描读取文档信息并且文档信息的密度高于预定阈值时,即当打印文档具有足以容纳条形码的空间时,条形码的密度被设置为使得密度 与文档信息的浓度低于预定阈值的情况相比,条形码的数量减少。 通过改变点的大小和点之间的距离,从而降低条形码的密度,可以减少消耗的调色剂量等。 然后,利用文档信息合成设置的条形码,并输出合成图像。

    Information processing apparatus, printing system, and control method therefor
    9.
    发明授权
    Information processing apparatus, printing system, and control method therefor 有权
    信息处理装置,打印系统及其控制方法

    公开(公告)号:US08149435B2

    公开(公告)日:2012-04-03

    申请号:US13165603

    申请日:2011-06-21

    IPC分类号: G06F3/12

    摘要: The present invention realizes a network printing system capable of accumulating and chasing printed data. Further, by providing a job chasing function on the printer driver side, detailed setting can be done to extract history information of the job chasing function. The detailed setting to extract history information to chase a job can be done only by a specific administrator or user so that the job can be reliably chased, whereas the administrator or user can obtain desired history information. Accordingly, a precise jog chasing system can be established.

    摘要翻译: 本发明实现了能够积累和追踪打印数据的网络打印系统。 此外,通过在打印机驱动器侧提供作业追逐功能,可以进行详细的设置来提取作业追踪功能的历史信息。 用于提取追踪作业的历史记录信息的详细设置只能由特定的管理员或用户完成,以便可以可靠地追查该作业,而管理员或用户可以获取所需的历史信息。 因此,可以建立精确的慢跑追逐系统。

    INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM
    10.
    发明申请
    INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM 有权
    信息处理设备,信息处理方法和存储介质

    公开(公告)号:US20110176172A1

    公开(公告)日:2011-07-21

    申请号:US13007362

    申请日:2011-01-14

    申请人: Hiroaki Nakata

    发明人: Hiroaki Nakata

    IPC分类号: G06F15/00

    摘要: An information processing apparatus includes a generation unit configured to determine, when a user inputs the number of images to be laid out on one side of a print sheet and an image magnification rate with an input operation via an input screen, an image size based on an image reduction rate for laying out the input number of images on the print sheet and the input image magnification rate, and generate print data for laying out images having the determined size on one side of the print sheet.

    摘要翻译: 一种信息处理装置,包括生成单元,被配置为当用户通过输入画面输入要在打印纸的一面上布置的图像数量和具有输入操作的图像放大率时,确定基于 用于布置打印纸上的输入数量的图像缩小率和输入图像放大率,并且生成用于在打印纸的一面上布置具有确定尺寸的图像的打印数据。