An ASK demodulator comprises a rectification circuit which receives and rectifies an ASK signal to generate a rectified current; an active load circuit is coupled to the rectification circuit and receives the rectified current and present an impedance which is inversely proportional to at least a part of the rectified current when a frequency of a base …

Legal parties

Inventors (applicants): Jiazhou Liu, Dawei Guo, Yangeng Wang
Assignees (initial): Beken Corporation (Shanghai, CN)
Agents: Perkins Coie LLP (attorney), Aaron Wininger (attorney)

The application was examined by Joseph Chang (USPTO dept. 2817)


  • 1. An ASK demodulator, comprising: …
  • 2. The ASK demodulator of claim 1 , further comprising a reference voltage generation circuit …
  • 3. The ASK demodulator of claim 2 , wherein the reference voltage generation circuit comprises …

International priority data

CN: 2012 1 0012422 / Jan. 16, 2012 (national)

Cited documents


  • Iwata et al. US 7876150 B2 / 329/311, Jan. 1, 2011
  • Yamazaki et al. US 2009/0243716 A1 / 329/369, Oct. 1, 2009
  • Nehrig et al. US 7855595 B2 / 329/311, Dec. 1, 2010
  • Crawford US 6496549 B1 / 375/320, Dec. 1, 2002


Brief Description of the Drawings

Non-limiting and non-exhaustive embodiments of the present invention are described with reference to the following figures, wherein like reference numerals refer to like parts throughout the various views unless otherwise …


Claim of Priority

This application claims priority to Chinese Application No. 201210012422.1 filed on Jan. 16, 2012, which is incorporated herein by …

Detailed Description of the Illustrated Embodiments

Various aspects and examples of the invention will now be described. The following description provides specific details for a thorough understanding and enabling description of these examples. Those skilled in the art will …

More details about Amplitude Shift Keying Demodulator and Method for Demodulating an Ask Signal

Miscellaneous patent data

The exemplary claims include number 1, the primary classification Pulse or Interrupted Continuous Wave Demodulator has been designated to the document, the patent particularly claims an ASK demodulator, comprising…, the assignee company is Beken Corporation located in Shanghai (CN), similar classification categories are Input signal combined with local oscillator or carrier frequency signal, Including discrete semiconductor device, position-modulated pulses, using a semiconductor device operating as a switching device, series read-out of number stored, Pulse position, frequency, phase or spacing demodulator, Monitoring, Error detection, Preventing or correcting improper counter operation, Input signal split into plural signals, Bistables with hysteresis, e.g. Schmitt trigger, Input signal combined with local oscillator or carrier frequency signal, the invention details are shown in 7 figures, numbered 13/405,632 (application), the agent's name is Wininger Aaron, invented by Yangeng Wang et al., the applicant's name is Liu Jiazhou, the assignee is a foreign company or corporation, the inventor's name is Dawei Guo, claims 1-7 comprise the invention scope, the grant number is 08508293 (publication number), the patent is illustrated by 7 drawings, the grant date is Aug. 13, 2013 (publication date), was examined by 2817 USPTO department, the examiner - Joseph Chang, includes the following drawings: Block diagram illustrating a device, Drawing illustrating an ASK demodulator, Amplitude Shift Keying Demodulator and Method, Block diagram illustrating a demodulator, the invention is named Amplitude Shift Keying Demodulator and Method for Demodulating an Ask Signal, the application publication date is Feb. 27, 2012, the patent extension term is 20 days.

Invention classification information

The invention is classified under of amplitude-modulated pulses, Pulse or Interrupted Continuous Wave Demodulator, Amplitude Modulation Demodulator, Including three or more terminal discrete semiconductor demodulator device. The designated search classifications include Pulse Amplitude Modulation, Amplitude Modulation Demodulator, Including three or more terminal discrete semiconductor demodulator device, Pulse or Interrupted Continuous Wave Demodulator.

Patent details
Publication number 08508293
Publication date Aug. 13, 2013
Kind code B2
Application number 13/405,632
Application date Feb. 27, 2012
Application type U
Application series code 13
Extension term 20
National classification 329/311
Total number of claims 7
Exemplary claims 1
Number of drawings 7
Number of figures 7
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