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Beijing, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Intercom systems and methods using the same
Patent number
11,943,569
Issue date
Mar 26, 2024
ZHEJIANG DAHUA TECHNOLOGY CO., LTD
Yufeng Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Value-added service deployment method, network device, and value-ad...
Patent number
10,015,133
Issue date
Jul 3, 2018
Huawei Technologies Co., Ltd.
Xianguo Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Preventing roaming user terminal re-authentication
Patent number
9,173,082
Issue date
Oct 27, 2015
Hangzhou H3C Technologies Co., Ltd.
Xiangqing Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Off time control method for switching regulator
Patent number
8,971,061
Issue date
Mar 3, 2015
Monolithic Power Systems, Inc.
En Li
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method for configuring and managing access point and access controller
Patent number
8,396,045
Issue date
Mar 12, 2013
Hangzhou H3C Technologies Co., Ltd.
Yang Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Switching mode power supply with burst mode and associated methods...
Patent number
8,274,801
Issue date
Sep 25, 2012
Monolithic Power Systems, Inc.
Yang Shi
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Frequency limitation method with time hysteresis used in quasi-reso...
Patent number
8,238,123
Issue date
Aug 7, 2012
Monolithic Power Systems, Inc.
Junming Zhang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
INTERCOM SYSTEMS AND METHODS USING THE SAME
Publication number
20210377494
Publication date
Dec 2, 2021
Zhejiang Dahua Technology CO., LTD.
Yufeng CHEN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Value-Added Service Deployment Method, Network Device, and Value-Ad...
Publication number
20160308827
Publication date
Oct 20, 2016
Huawei Technologies Co., Ltd
Xianguo Zhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PREVENTING ROAMING USER TERMINAL RE-AUTHENICATION
Publication number
20130265941
Publication date
Oct 10, 2013
HANGZHOU H3C TECHNOLOGIES CO., LTD.
Xiangqing Chang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
POWER SUPPLIES AND ASSOCIATED METHODS OF CONTROL
Publication number
20110084677
Publication date
Apr 14, 2011
Yang Shi
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
FREQUENCY LIMITATION METHOD WITH TIME HYSTERESIS USED IN QUASI-RESO...
Publication number
20110007526
Publication date
Jan 13, 2011
Junming Zhang
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
OFF TIME CONTROL METHOD FOR SWITCHING REGULATOR
Publication number
20100201335
Publication date
Aug 12, 2010
En Li
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
METHOD FOR CONFIGURING AND MANAGING ACCESS POINT AND ACCESS CONTROLLER
Publication number
20090141694
Publication date
Jun 4, 2009
Yang SHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE