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US08107555B2 Pre-emphasis automatic adjusting system, method of adjusting pre-emphasis and pre-emphasis setting signal generating circuit 有权
预加重自动调整系统，预加重和预加重设定信号发生电路的调整方法

  • Patent Title: Pre-emphasis automatic adjusting system, method of adjusting pre-emphasis and pre-emphasis setting signal generating circuit
  • Patent Title (中): 预加重自动调整系统，预加重和预加重设定信号发生电路的调整方法
  • Application No.: US12059328
    Application Date: 2008-03-31
  • Publication No.: US08107555B2
    Publication Date: 2012-01-31
  • Inventor: Motoi Tanabe
  • Applicant: Motoi Tanabe
  • Applicant Address: JP Tokyo
  • Assignee: NEC Corporation
  • Current Assignee: NEC Corporation
  • Current Assignee Address: JP Tokyo
  • Priority: JP2007-093509 20070330
  • Main IPC: H04K1/02
  • IPC: H04K1/02 ;  H04L25/03 ;  H04L25/49
Pre-emphasis automatic adjusting system, method of adjusting pre-emphasis and pre-emphasis setting signal generating circuit
Abstract:
A pre-emphasis automatic adjusting system is provided which is capable of placing the best suitable emphasis against attenuation occurring in a through hole. A step signal is transmitted from a transmitting circuit via a signal transmission path to a receiving circuit with termination of the receiving circuit being released. A voltage of its reflected signal is compared with a first reference voltage of a first reference voltage source. Based on a comparison result in a capacitive reflection section in which a voltage of the reflected signal is less than the first reference voltage, a section detecting signal is outputted from a reflected wave detecting circuit.
Abstract(Chinese):

提供了预加重自动调节系统，其能够最佳地强调在通孔中发生的衰减。 步骤信号从发送电路经由信号传输路径发送到接收电路，接收电路的终止被释放。 将其反射信号的电压与第一参考电压源的第一参考电压进行比较。 基于反射信号的电压小于第一基准电压的电容反射部的比较结果，从反射波检测电路输出截面检测信号。

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