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Patents Grants
last 30 patents
Information
Patent Grant
Method and device for improving output accuracy of digital-to-analo...
Patent number
10,917,099
Issue date
Feb 9, 2021
GUANGDONG DAPU TELECOM TECHNOLOGY CO., LTD.
Hui Zhang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Oven controlled crystal oscillator and manufacturing method thereof
Patent number
9,019,022
Issue date
Apr 28, 2015
Guangdong Dapu Telecom Technology Co., Ltd.
Chaosheng Liu
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Oven controlled crystal oscillator
Patent number
8,446,226
Issue date
May 21, 2013
Guangdong Dapu Telecom Technology Co. Ltd.
Chaosheng Liu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Surface mounted oven controlled crystal oscillator
Patent number
8,446,225
Issue date
May 21, 2013
Guangdong Dapu Telecom Technology Co., Ltd.
Chaosheng Liu
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
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Patent Application
METHOD AND DEVICE FOR IMPROVING OUTPUT ACCURACY OF DIGITAL-TO-ANALO...
Publication number
20200127673
Publication date
Apr 23, 2020
GUANGDONG DAPU TELECOM TECHNOLOGY CO., LTD.
Hui ZHANG
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
OVEN CONTROLLED CRYSTAL OSCILLATOR DEVICE, AND FREQUENCY COMPENSATI...
Publication number
20200021242
Publication date
Jan 16, 2020
GUANGDONG DAPU TELECOM TECHNOLOGY CO., LTD.
Yifeng Wang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DIRECT TEMPERATURE MEASUREMENT OVEN CONTROLLED CRYSTAL OSCILLATOR
Publication number
20180198407
Publication date
Jul 12, 2018
GUANGDONG DAPU TELECOM TECHNOLOGY CO., LTD.
Yifeng WANG
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
DIRECTLY-HEATING OVEN CONTROLLED CRYSTAL OSCILLATOR
Publication number
20180191299
Publication date
Jul 5, 2018
GUANGDONG DAPU TELECOM TECHNOLOGY CO., LTD.
Yifeng WANG
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
SURFACE MOUNTED OVEN CONTROLLED CRYSTAL OSCILLATOR
Publication number
20120146735
Publication date
Jun 14, 2012
GUANGDONG DAPU TELECOM TECHNOLOGY CO., LTD.
Chaosheng Liu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
OVEN CONTROLLED CRYSTAL OSCILLATOR
Publication number
20110273238
Publication date
Nov 10, 2011
GUANGDONG DAPU TELECOM TECHNOLOGY CO., LTD.
Chaosheng Liu
H03 - BASIC ELECTRONIC CIRCUITRY
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