Invention Grant
US09312879B2 Signal modulating device capable of reducing peaking in signal transfer function 有权
信号调制装置能够减少信号传递功能的峰值

  • Patent Title: Signal modulating device capable of reducing peaking in signal transfer function
  • Patent Title (中): 信号调制装置能够减少信号传递功能的峰值
  • Application No.: US14600017
    Application Date: 2015-01-20
  • Publication No.: US09312879B2
    Publication Date: 2016-04-12
  • Inventor: Li-Han HungYen-Chuan HuangChi-Yun WangChih-Hong Lou
  • Applicant: MEDIATEK INC.
  • Applicant Address: TW Science-Based Industrial Park, Hsin-Chu
  • Assignee: MEDIATEK INC.
  • Current Assignee: MEDIATEK INC.
  • Current Assignee Address: TW Science-Based Industrial Park, Hsin-Chu
  • Agent Winston Hsu; Scott Margo
  • Main IPC: H03M3/00
  • IPC: H03M3/00
Signal modulating device capable of reducing peaking in signal transfer function
Abstract:
A signal modulating device includes: an integrating circuit arranged to generate an integrated signal according to a scaled analog signal and a first feedback signal; a resonating circuit arranged to generate a resonating signal according to the integrated signal; a first signal converting circuit arranged to convert the resonating signal into a digital output signal; a second signal converting circuit arranged to convert the digital output signal into the first feedback signal; and a first impedance circuit having a first terminal receiving an analog signal and a second terminal coupled to the resonating circuit for altering the location of zeros in the forward-path transfer function and consequently shaping the signal transfer function (STF) of the signal modulating device; and a second impedance circuit having a first terminal receiving the analog signal and a second terminal coupled to the integrating circuit for generating the scaled analog signal.
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