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1. CN1543703 - Oscillator and communication apparatus

Office
Chine
Numéro de la demande 02802793.0
Date de la demande 29.07.2002
Numéro de publication 1543703
Date de publication 03.11.2004
Type de publication A
CIB
H03B 5/32
HÉLECTRICITÉ
03CIRCUITS ÉLECTRONIQUES FONDAMENTAUX
BPRODUCTION D'OSCILLATIONS, DIRECTEMENT OU PAR CHANGEMENT DE FRÉQUENCE, À L'AIDE DE CIRCUITS UTILISANT DES ÉLÉMENTS ACTIFS QUI FONCTIONNENT D'UNE MANIÈRE NON COMMUTATIVE; PRODUCTION DE BRUIT PAR DE TELS CIRCUITS
5Production d'oscillation au moyen d'un amplificateur comportant un circuit de réaction entre sa sortie et son entrée
30l'élément déterminant la fréquence étant un résonateur électromécanique
32un résonateur piézo-électrique
CPC
H03B 5/32
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5Generation of oscillations using amplifier with regenerative feedback from output to input
30with frequency-determining element being electromechanical resonator
32being a piezo-electric resonator
H03B 2201/0208
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
BGENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
2201Aspects of oscillators relating to varying the frequency of the oscillations
02Varying the frequency of the oscillations by electronic means
0208the means being an element with a variable capacitance, e.g. capacitance diode
H03L 1/025
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
1Stabilisation of generator output against variations of physical values, e.g. power supply
02against variations of temperature only
022by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
023by using voltage variable capacitance diodes
025and a memory for digitally storing correction values
Déposants Seiko Epson Corp.
精工爱普生株式会社
Inventeurs Oka Manabu
冈学
Ichinose Kazushige
市濑和成
Mandataires ma tieliang liang yong
中国专利代理(香港)有限公司
中国专利代理(香港)有限公司
Données relatives à la priorité 260173/2001 29.08.2001 JP
Titre
(EN) Oscillator and communication apparatus
(ZH) 振荡器及通信设备
Abrégé
(EN)
An oscillator 10 includes temperature compensation circuits 30 and 40, a frequency adjusting circuit 50, and an initial deviation correcting circuit 60. Switches SW 1 to 4 are controlled based on control data DC stored in a memory 90 so that a temperature compensation voltage V1, a temperature compensation voltage V2, a frequency adjusting voltage V3, and an initial deviation correcting voltage V4, output from the above circuits, are selectively added, supplying a sum to a voltage-controlled oscillation circuit 20 as a control voltage VA.

(ZH)

振荡器10具备温度补偿电路30及40、频率调整电路50、初始偏差校正电路60,通过基于在存储器90中存储的控制数据DC控制开关SW1~4,来对从这些电路输出的温度补偿电压V1、温度补偿电压V2、频率调整电压V3及初始偏差校正电压V4有选择地进行相加,作为控制电压VA向电压控制振荡电路20提供。

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