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1. CN109639259 - Method for spreading spectrum, chip, display panel and readable storage medium

Office China
Application Number 201811484037.0
Application Date 05.12.2018
Publication Number 109639259
Publication Date 16.04.2019
Publication Kind A
IPC
H03K 4/06
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
4Generating pulses having essentially a finite slope or stepped portions
06having triangular shape
H03K 5/26
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
5Manipulation of pulses not covered by one of the other main groups of this subclass
22Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
26the characteristic being duration, interval, position, frequency, or sequence
H03K 7/06
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
7Modulating pulses with a continuously-variable modulating signal
06Frequency or rate modulation, i.e. PFM or PRM
CPC
H03K 4/06
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
4Generating pulses having essentially a finite slope or stepped portions
06having triangular shape
H03K 5/26
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
5Manipulating of pulses not covered by one of the other main groups of this subclass
22Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
26the characteristic being duration, interval, position, frequency, or sequence
H03K 7/06
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
7Modulating pulses with a continuously-variable modulating signal
06Frequency or rate modulation, i.e. PFM or PRM
Applicants HKC CO., LTD.
惠科股份有限公司
Inventors WANG MINGLIANG
王明良
Agents 深圳市世纪恒程知识产权代理事务所 44287
Title
(EN) Method for spreading spectrum, chip, display panel and readable storage medium
(ZH) 扩展频谱的方法、芯片、显示面板及可读存储介质
Abstract
(EN)
The invention discloses a method for spreading spectrum. The method comprises the following steps: acquiring modulation signals corresponding to clock signals when detecting the clock signals; performing spectrum spreading on the clock signals according to the modulation signals, wherein the modulation signal corresponding to the adjacent clock signal is an inverse signal. The invention further discloses a chip, a display panel, and a computer readable storage medium. Through two modulation signals which are opposite signals, two independent voltage-controlled oscillators are controlled to perform opposite spectrum spreading on two adjacent clock signals, the spectrum spreading intervals of the clock signals are enlarged, the signal distortion factor is unchanged, and a technical problem that the spectrum-spreading effect on the dual clock signals is bad is solved.

(ZH)
本发明公开了一种扩展频谱的方法,包括以下步骤:在检测到时钟信号时,获取所述时钟信号对应的调制信号;根据所述调制信号对所述时钟信号进行展频,其中,相邻时钟信号对应的调制信号为反相信号。本发明还公开了一种芯片、显示面板及计算机可读存储介质。本发明通过以两个互为反向信号的调制信号,控制两个独立的压控振荡器对两个相邻时钟信号进行反向展频,使得时钟信号的展频区间增大,且信号失真度不变,解决了对双时钟信号的展频效果较差的技术问题。

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