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1. EP3907890 - FREQUENCY ADJUSTER AND FREQUENCY ADJUSTMENT METHOD THEREFOR, AND ELECTRONIC DEVICE

Office
European Patent Office
Application Number 19848767
Application Date 02.01.2019
Publication Number 3907890
Publication Date 10.11.2021
Publication Kind A1
IPC
H03L 7/18
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
16Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
18using a frequency divider or counter in the loop
CPC
H03L 7/087
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
08Details of the phase-locked loop
085concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
087using at least two phase detectors or a frequency and phase detector in the loop
H03L 7/0996
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
08Details of the phase-locked loop
099concerning mainly the controlled oscillator of the loop
0995the oscillator comprising a ring oscillator
0996Selecting a signal among the plurality of phase-shifted signals produced by the ring oscillator
H03L 7/18
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
16Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
18using a frequency divider or counter in the loop
H03L 7/1974
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
16Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
18using a frequency divider or counter in the loop
197a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
1974for fractional frequency division
H03L 7/081
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
08Details of the phase-locked loop
081provided with an additional controlled phase shifter
H03L 7/085
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
7Automatic control of frequency or phase; Synchronisation
06using a reference signal applied to a frequency- or phase-locked loop
08Details of the phase-locked loop
085concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
Applicants BOE TECHNOLOGY GROUP CO LTD
BEIJING BOE TECHNOLOGY DEV CO LTD
Inventors WEI XIANGYE
XIU LIMING
Designated States
Title
(DE) FREQUENZREGLER UND FREQUENZREGELUNGSVERFAHREN DAFÜR SOWIE ELEKTRONISCHE VORRICHTUNG
(EN) FREQUENCY ADJUSTER AND FREQUENCY ADJUSTMENT METHOD THEREFOR, AND ELECTRONIC DEVICE
(FR) DISPOSITIF DE RÉGLAGE DE FRÉQUENCE ET PROCÉDÉ DE RÉGLAGE DE FRÉQUENCE ASSOCIÉ, ET DISPOSITIF ÉLECTRONIQUE
Abstract
(EN) A frequency regulator and a frequency regulating method thereof, and an electronic device are disclosed. The frequency regulator (10) includes: a signal processing circuit (11) configured to generate a frequency control word (F) according to a frequency regulating coefficient and an input frequency (ƒi); and a frequency regulating circuit (12) configured to receive the frequency control word (F) and to generate and output an output signal (Sout) having a target frequency (ƒ0) according to the frequency control word (F). The frequency regulating coefficient is an arbitrary positive real number and is expressed as M.m, M is an integer portion of the frequency regulating coefficient and is a natural number, and m is a decimal portion of the frequency regulating coefficient.
(FR) Dispositif de réglage de fréquence et procédé de réglage de fréquence associé, et dispositif électronique. Le dispositif de réglage de fréquence (10) comprend : un circuit de traitement de signal (11) conçu pour générer un mot de commande de fréquence (F) en fonction d'un coefficient de réglage de fréquence et d'une fréquence d'entrée (fi); et un circuit de réglage de fréquence (12) conçu pour recevoir le mot de commande de fréquence (F), générer un signal de sortie (Sout) ayant une fréquence cible (fo) en fonction du mot de commande de fréquence (F), et délivrer celui-ci. Le coefficient de réglage de fréquence est un nombre réel positif arbitraire et est représenté par M.m, M étant la partie entière du coefficient de réglage de fréquence et étant un nombre naturel, et m étant la partie fractionnaire du coefficient de réglage de fréquence.
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