|
| No.111336 |
Multi functional protection relay |
1993.07.21 |
1997.01.24 |
|
| No.122534 |
Digital recording analyzing device |
1993.11.23 |
1997.09.05 |
|
| No.0227525 |
Voice memorandum service method and the system using communication network in voice mail service |
1996.07.27 |
1999.08.04 |
|
| No.0230210 |
Remote monitoring device and the method of managing wireless frequency in wireless communication station. |
1996.06.19 |
1999.08.21 |
|
| No.0257885 |
Method for diminishing spectrum detecting rate using no signal guard band |
1997.10.10 |
2000.03.06 |
|
| No.0267888 |
Wireless base station condition monitoring system using wireless base station condition monitoring device |
1997.06.20 |
2000.07.08 |
|
| No.0268736 |
Wireless base station condition monitoring system using wireless base station condition monitoring device |
1997.05.19 |
2000.07.14 |
|
| No.0293870 |
BTS expanding device in mobile telecommunication system |
1999.03.20 |
2001.04.09 |
|
| No.0294463 |
Mobile telecom terminal with function of record ringing signal |
1998.08.24 |
2001.04.17 |
|
| No.0304010 |
Dedicated line compression data concentrator and transmission system using the concentrator |
1998.11.26 |
2001.07.18 |
|
| No.0314206 |
Digital transmission device in base stations of mobile communication. |
1998.12.11 |
2001.10.26 |
|
| No.0314207 |
BTS extender with function to change its belonging sector. |
1999.07.23 |
2001.10.26 |
|
| No.0314210 |
Goods payment method using mobile telecommunication terminal |
1999.02.23 |
2001.10.26 |
|
| No.0316811 |
BTS device extending the coverage |
1999.10.26 |
2001.11.24 |
|
| No.0325683 |
Goods payment method using mobile telecommunication |
1999.04.09 |
2002.02.09 |
|
| No.0325684 |
Goods payment method using mobile telecommunication |
1999.04.09 |
2002.02.09 |
|
| No.0328576 |
Money transfer method using mobile telecommunication terminal |
1999.04.26 |
2002.03.04 |
|
| No.0328577 |
Goods payment method |
1999.04.16 |
2002.03.04 |
|
| No.01-1651 |
Voice information provider for vehicle and its servicing method |
2001.01.11 |
2003.02.28 |
|
| No.0443128 |
Location tracking method of GPS terminal |
2002.03.04 |
2004.07.26 |
|
| No.0443129 |
Point movement method using screen scanning |
2002.08.26 |
2004.07.26 |
|
No.6810268
USA Patent |
Signal power detection device and frequence analysis apparatus using the same |
2003.01.17 |
2004.10.26 |
|
| No.0481235 |
Radio frequency analyzing device using signal power detector |
2002.05.31 |
2005.03.28 |
|
|
Device and method for signal quality measurement of multimedia broadcasting service |
2004.04.19 |
2006.01.23 |
|
| No.03-0001737 |
Device and method for signal quality measurement of multimedia broadcasting service |
2003.01.10 |
2006.03.08 |
|
| No.04-0016530 |
Geographic information searching system for car navigation and the method |
2004.03.11 |
2006.06.12 |
|
| No.03-65060 |
GPS operating system and the method using PIO code |
2003.09.19 |
2006.06.30 |
|
No.2004202733
Australian Patent |
In-Building common use communication network service system and method. |
2004.06.22 |
2006.10.11 |
|
