Invention Grant
US08803116B2 Receiving circuit having a switch for changing the generated reference voltage to one of a first and a second threshold value 有权
接收电路具有用于将产生的参考电压改变为第一和第二阈值之一的开关

  • Patent Title: Receiving circuit having a switch for changing the generated reference voltage to one of a first and a second threshold value
  • Patent Title (中): 接收电路具有用于将产生的参考电压改变为第一和第二阈值之一的开关
  • Application No.: US13412462
    Application Date: 2012-03-05
  • Publication No.: US08803116B2
    Publication Date: 2014-08-12
  • Inventor: Yukio Tsunetsugu
  • Applicant: Yukio Tsunetsugu
  • Applicant Address: JP Tokyo
  • Assignee: Kabushiki Kaisha Toshiba
  • Current Assignee: Kabushiki Kaisha Toshiba
  • Current Assignee Address: JP Tokyo
  • Agency: Patterson & Sheridan, LLP
  • Priority: JP2011-087208 20110411
  • Main IPC: G02B27/00
  • IPC: G02B27/00
Receiving circuit having a switch for changing the generated reference voltage to one of a first and a second threshold value
Abstract:
According to a receiving circuit includes a light receiving element, a signal voltage generation portion, a comparator, a reference voltage generation portion and a switch. The light receiving element receives a light signal and outputs a light current corresponding to the light signal. The signal voltage generation portion converts the light current into a signal voltage and outputs the signal voltage. The comparator compares the signal voltage with a first threshold value or a second threshold value. The reference voltage generation portion outputs a reference voltage input to the comparator. The switch changes the reference voltage to one of the first threshold value and the second threshold value based on an output of the comparator.
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