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Beijing, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Method, device and system for calibrating positioning device
Patent number
8,694,275
Issue date
Apr 8, 2014
NEC (China) Co., Ltd.
Yongcai Wang
G01 - MEASURING TESTING
Information
Patent Grant
Method, device and system for calibrating positioning device
Patent number
8,649,991
Issue date
Feb 11, 2014
NEC (China) Co., Ltd.
Yongcai Wang
Information
Patent Grant
Multi-objects positioning system and power-control based multiple a...
Patent number
8,548,490
Issue date
Oct 1, 2013
NEC (China) Co., Ltd.
Yongcai Wang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method, device and system for calibrating positioning device
Patent number
8,306,769
Issue date
Nov 6, 2012
NEC (China) Co., Ltd.
Yongcai Wang
G01 - MEASURING TESTING
Information
Patent Grant
Autonomous ultrasonic indoor location system, apparatus and method
Patent number
8,203,910
Issue date
Jun 19, 2012
NEC (China) Co., Ltd.
Junhui Zhao
G01 - MEASURING TESTING
Information
Patent Grant
Media program identification method and apparatus based on audio wa...
Patent number
7,957,977
Issue date
Jun 7, 2011
NEC (China) Co., Ltd.
Junhui Zhao
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Patents Applications
last 30 patents
Information
Patent Application
METHOD, DEVICE AND SYSTEM FOR CALIBRATING POSITIONING DEVICE
Publication number
20120290256
Publication date
Nov 15, 2012
NEC (China) CO. LTD.
Yongcai WANG
G01 - MEASURING TESTING
Information
Patent Application
RECEIVER SYSTEM, METHOD FOR ARRANGING THE RECEIVER SYSTEM AND POSIT...
Publication number
20110306370
Publication date
Dec 15, 2011
NEC (CHINA) CO., LTD.
Junhui ZHAO
G01 - MEASURING TESTING
Information
Patent Application
METHOD, DEVICE AND SYSTEM FOR CALIBRATING POSITIONING DEVICE
Publication number
20100185408
Publication date
Jul 22, 2010
NEC (CHINA) CO., LTD.
Yongcai WANG
G01 - MEASURING TESTING
Information
Patent Application
MULTI-OBJECTS POSITIONING SYSTEM AND POWER-CONTROL BASED MULTIPLE A...
Publication number
20100109849
Publication date
May 6, 2010
NEC (China)Co., Ltd.
Yongcai Wang
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
METHOD AND SYSTEM FOR POSITIONING OBJECT WITH ADAPTIVE RESOLUTION
Publication number
20100090899
Publication date
Apr 15, 2010
NEC (CHINA) CO., LTD.
Junhui ZHAO
G01 - MEASURING TESTING
Information
Patent Application
AUTONOMOUS ULTRASONIC INDOOR LOCATION SYSTEM, APPARATUS AND METHOD
Publication number
20090295639
Publication date
Dec 3, 2009
NEC (CHINA) CO., LTD.
Junhui ZHAO
G01 - MEASURING TESTING
Information
Patent Application
AUTONOMOUS ULTRASONIC INDOOR TRACKING SYSTEM
Publication number
20090190441
Publication date
Jul 30, 2009
NEC (CHINA) CO., LTD.
Junhui ZHAO
G01 - MEASURING TESTING
Information
Patent Application
MEDIA PROGRAM IDENTIFICATION METHOD AND APPARATUS BASED ON AUDIO WA...
Publication number
20080027734
Publication date
Jan 31, 2008
NEC (China) CO. LTD.
Junhui Zhao
H04 - ELECTRIC COMMUNICATION TECHNIQUE