Title:
CIRCUIT AND METHOD FOR ADAPTIVE ADJUSTMENT OF DUTY CYCLE OF SIGNAL AT RECEIVING END
Document Type and Number:
WIPO Patent Application WO/2019/085091
Kind Code:
A1
Abstract:
A circuit and method for adaptive adjustment of the duty cycle of a signal at a receiving end. The circuit comprises an analog electrical level comparison circuit, a preprocessing circuit, a first path switch, a second path switch, a decoding circuit, a parameter extraction and estimation circuit, an error generation circuit, a filtering feedback circuit, and a digital-to-analogue conversion circuit. The analog electrical level comparison circuit receives an effective signal according to a reference electrical level, so as to generate a duty cycle signal. The preprocessing circuit preprocesses the duty cycle signal; when the first path switch is turned on, the parameter extraction and estimation circuit obtains duty cycle information from the duty cycle signal, so as to generate a duty cycle deviation. The error generation circuit processes the duty cycle deviation to generate an error signal. The filtering feedback circuit and the digital-to-analogue conversion circuit filter the error signal, then converts the filtered error signal into an analog voltage signal, the analog voltage signal is connected to the analog electrical level comparison circuit and serves as a reference electrical level; when the second path switch is turned on, the decoding circuit decodes the duty cycle signal.
Inventors:
WANG JUNNING (CN)
LIN JIANHUI (CN)
LIN JIANHUI (CN)
Application Number:
PCT/CN2017/112775
Publication Date:
May 09, 2019
Filing Date:
November 24, 2017
Export Citation:
Assignee:
INT GREEN CHIP TIANJIN CO LTD (CN)
International Classes:
H04L25/03
Foreign References:
| CN204206212U | 2015-03-11 | |||
| CN105959247A | 2016-09-21 | |||
| CN106953818A | 2017-07-14 | |||
| CN201797511U | 2011-04-13 | |||
| US20020001354A1 | 2002-01-03 |
Other References:
WANG BIN: "Application of Distortion Afaptive Receiver Technology in Scattering Channels", RADIO ENGINEERING, vol. 35, no. 7, 31 July 2005 (2005-07-31), pages 4
Attorney, Agent or Firm:
E-TONE INTELLECTUAL PROPERTY FIRM (CN)
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