Jitang Sun

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for playing ring back tone, home location registe...
- Patent number 8,254,871
- Issue date Aug 28, 2012
- Huawei Technologies Co., Ltd.
- Ping Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND SYSTEM FOR PLAYING RING BACK TONE, HOME LOCATION REGISTE...
- Publication number 20100022219
- Publication date Jan 28, 2010
- Huawei Technologies Co., Ltd
- Ping Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE