Huawei patents granted on 09 April 2013

17 US patents granted on 09 April 2013 and assigned to Huawei

1 8,418,242 Method, system, and device for negotiating SA on IPv6 network
2 8,417,767 Call control method, device, and system
3 8,417,684 Method, system, and device for searching for information and method for registering vertical search engine
4 8,417,521 Method, device and system for implementing speech recognition function
5 8,417,473 Method for estimating inter-channel delay and apparatus and encoder thereof
6 8,417,246 Method for providing information in a cellular wireless communication system
7 8,417,240 Method, system and apparatus for using IMS communication service identifier
8 8,416,901 Method and apparatus for detecting clock frequency deviation
9 8,416,892 Method and apparatus of transmitting a random access preamble
10 8,416,787 Method, system and apparatus for implementing L2VPN between autonomous systems
11 8,416,747 Method and device for path switchover
12 8,416,723 Method, system, and device for establishing association-control relations
13 8,416,712 Method and device for installing and distributing routes
14 8,416,695 Method, device and system for network interception
15 8,416,683 Method for protecting data service in metropolitan area transport network
16 8,416,682 Method and implementing apparatus for cooperative multi-hop routing in wireless network
17 8,416,314 Method and system for processing images