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Kim; Namgyu
Uiwang-si, KR
No. of patents:

Patent Number Title Of Patent Date Issued
8081980 Method and system for recovering from hand-off fail for use in CDMA 2000 1xEV-DO system December 20, 2011
A multimedia mobile communication system for recovering a handoff failure comprises: a hybrid access terminal; a base station transceiver subsystem for transmitting and receiving the voice and the data; a base station a mobile switching center a 1.times.EV-DO transceiver; and an access
7643461 Method and telecommunication system for appointing frequency assignment mode and/or broadcast/mu January 5, 2010
A telecommunication system for appointing a frequency assignment mode and ratio for providing a broadcast/multicast service includes at least one access terminal (AT) for receiving a 1xEV-DO service or the BCMCS through a 1xEV-DO system, a base station manager (BSM) for receiving BCMCS
7609675 Method and system for recognizing call switch-over from 1xEV-DO system to 1X system October 27, 2009
The system in accordance with the present invention recognizes in real time that a call connection of a hybrid access terminal be switched over to a 1X system, by sending an inquiry message inquiring the hybrid access terminal of whether the hybrid access terminal has received voice sign
7590091 Method and system for switching over to 1x system upon 1xev-do system failure September 15, 2009
The present invention relates to a method and system for switching over a call connection of a hybrid access terminal to a 1X system if a 1XEV-DO system has a problem when the hybrid access terminal requests a call connection to the 1xEV-DO system. The system in accordance with the p

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