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    • 123. 发明申请
    • Driving circuit using probability density function
    • 驱动电路采用概率密度函数
    • US20080084904A1
    • 2008-04-10
    • US11902965
    • 2007-09-26
    • Shigeo Hayashi
    • Shigeo Hayashi
    • H01S3/00
    • H01S5/06832H01S5/0427H01S5/06812
    • The present invention provides a laser diode driving circuit that enables to precisely control the amplitude of the driving current with suppressing the overshoot and the undershoot appeared in the monitor signal of the optical output from the laser diode. The driving circuit of the invention includes a signal mixer, a comparator, an averaging unit and a current generator. The signal mixer superposes an additional signal on the monitor signal. The amplitude of the additional signal varies in accordance with a preset distribution function. The comparator compares thus superposed signal with a reference level and outputs a binary signal. The averaging unit integrates this binary signal and the current generator provides the driving current based on the averaged binary signal.
    • 本发明提供一种激光二极管驱动电路,其能够通过抑制来自激光二极管的光输出的监视信号中的过冲和下冲而精确地控制驱动电流的振幅。 本发明的驱动电路包括信号混频器,比较器,平均单元和电流发生器。 信号混频器在监视器信号上叠加一个附加信号。 附加信号的幅度根据预设分布函数而变化。 比较器将这样叠加的信号与参考电平进行比较,并输出二进制信号。 平均单元将该二进制信号进行积分,并且电流发生器基于平均二进制信号提供驱动电流。
    • 124. 发明申请
    • Laser diode driver able to precisely control the driving current
    • 激光二极管驱动器能够精确控制驱动电流
    • US20080063018A1
    • 2008-03-13
    • US11896597
    • 2007-09-04
    • Shigeo Hayashi
    • Shigeo Hayashi
    • H01S5/068
    • H01S5/0683H01S5/06832
    • The present invention provides a laser diode driver (LD-driver) able to precisely control the driving current reducing the influence of the overshoot and undershoot of the monitored signal. The LD-driver includes a photodiode (PD), an I/V-converter (I/V-C), a comparator, an integrator, a processing unit, and a current source. The PD generates the photocurrent, the I/V-C converts the photocurrent to a voltage signal, the comparator compares the voltage signal coupled by the AC-mode with a threshold, and the integrator integrates the output of the comparator. The processing unit, based on the output of the integrator, controls the driving current. In the LD-driver, the output of the integrator only determines the control mode, namely, the increment or the decrement of the current, the magnitude of the change in the driving current and its speed are given by the present conditions.
    • 本发明提供一种激光二极管驱动器(LD驱动器),其能够精确地控制驱动电流,从而减小所监视信号的过冲和下冲的影响。 LD驱动器包括光电二极管(PD),I / V转换器(I / V-C),比较器,积分器,处理单元和电流源。 PD产生光电流,I / V-C将光电流转换为电压信号,比较器将通过AC模式耦合的电压信号与阈值进行比较,积分器对比较器的输出进行积分。 处理单元基于积分器的输出来控制驱动电流。 在LD驱动器中,积分器的输出仅决定控制模式,即电流的增量或减量,驱动电流的变化幅度及其速度由当前条件给出。
    • 125. 发明授权
    • Optical receiver
    • 光接收机
    • US07302193B2
    • 2007-11-27
    • US10941690
    • 2004-09-15
    • Yoshiki KuharaMitsuaki NishieShigeo Hayashi
    • Yoshiki KuharaMitsuaki NishieShigeo Hayashi
    • H04B10/06
    • H04B10/6911H01L2224/48091H01L2924/00014
    • An optical receiver includes a PIN photodiode (PIN-PD) having an incident surface for receiving signal light, the PIN-PD transmitting a part of the signal light to the surface opposite to the incident surface, and an avalanche photodiode (APD) having an incident surface for receiving light transmitted through the PIN-PD. In the optical receiver, the ratio of the quantity of signal light detected by the PIN-PD and the ratio of the quantity of signal light detected by the APD are not affected by the polarization state of the signal light incident on the optical receiver, and accordingly the avalanche multiplication factor of the APD is suitably controlled on the basis of the signal light detected by the PIN-PD.
    • 光接收器包括具有用于接收信号光的入射表面的PIN光电二极管(PIN-PD),PIN-PD将一部分信号光传输到与入射表面相对的表面,以及具有 用于接收通过PIN-PD传输的光的入射面。 在光接收机中,由PIN-PD检测到的信号光的量与由APD检测的信号光的比率之比不受入射在光接收机上的信号光的偏振状态的影响, 因此,基于由PIN-PD检测到的信号光适当地控制APD的雪崩倍增因子。
    • 129. 发明申请
    • Packet processing device and method
    • 分组处理设备和方法
    • US20060067345A1
    • 2006-03-30
    • US10528839
    • 2004-06-07
    • Shigeo HayashiEiji WatanabeHidekatsu Ozeki
    • Shigeo HayashiEiji WatanabeHidekatsu Ozeki
    • H04L12/56
    • H04N21/2389H04N21/434H04N21/4385
    • There is provided a packet processing device for, when decoding variable length data that is split into packets, realizing a reduction in processing load at a decoder, by providing information for identifying a start position of the data. A header analyzing section (11) determines whether data stored in a packet is start data containing start information or other data. A data extracting section (12) extracts data from a packet and stores the data in a buffer (13). A buffer controlling section (14) causes a start position memory (15) and a number-of-starts counter (16) to retain an address position and the number of start data stored in the buffer (13). A decode section (20) refers to the start position memory (15) and the number-of-starts counter (16) and executes a decode process for the data stored in the buffer (13).
    • 提供了一种分组处理装置,用于通过提供用于识别数据的开始位置的信息来解码分解成分组的可变长度数据,实现解码器处理负荷的降低。 标题分析部(11)确定存储在分组中的数据是否包含开始信息或其他数据的开始数据。 数据提取部分(12)从分组中提取数据并将数据存储在缓冲器(13)中。 缓冲器控制部分(14)使起始位置存储器(15)和启动次数计数器(16)保持存储在缓冲器(13)中的地址位置和起始数据的数量。 解码部分(20)参考开始位置存储器(15)和启动次数计数器(16),并对存储在缓冲器(13)中的数据执行解码处理。
    • 130. 发明申请
    • Display element and manufacturing method thereof
    • 显示元件及其制造方法
    • US20060022367A1
    • 2006-02-02
    • US10531959
    • 2003-10-22
    • Shigeo Hayashi
    • Shigeo Hayashi
    • B29C67/20B29B17/00C08J9/26
    • G02B26/026G02F1/167
    • A method for manufacturing rotatable two-color particles for a display which is a main component for a display device that may be used in a personal computer, a mobile telephone, and a mobile terminal as well as in a digital paper and a digital book. A display element and a display sheet manufacturing method are also disclosed. The two-color particle manufacturing method includes: a step for bringing, in air or in liquid, a first liquid droplet having a first hue into contact with a second liquid droplet having a hue different from the first hue into a single liquid droplet; and a step for bringing the liquid droplet into contact with a reaction liquid so as to solidify it instantaneously. The two liquid droplets may be injected through a spray nozzle or a jet nozzle. Moreover, the first liquid droplet and the second liquid droplet preferably have different electric charges or different electric charge densities if the charges are identical. Furthermore, the liquid droplets may contain a pigment and a charge control agent.
    • 一种用于制造用于显示器的可旋转双色颗粒的方法,该显示器是可用于个人计算机,移动电话和移动终端以及数字纸和数字书籍中的显示装置的主要部件。 还公开了显示元件和显示片制造方法。 双色粒子的制造方法包括:将具有第一色调的第一液滴的空气或液体中的第一液滴与具有不同于第一色相的色调的第二液滴接触为单个液滴的步骤; 以及使液滴与反应液接触以使其立即固化的步骤。 两个液滴可以通过喷嘴或喷嘴喷射。 此外,如果电荷相同,则第一液滴和第二液滴优选具有不同的电荷或不同的电荷密度。 此外,液滴可以含有颜料和电荷控制剂。