| 7359859 |
Computer-based training system and method for enhancing language listening comprehension |
Zechary Chang, Leger Wu |
2008-04-15 |
| 7296260 |
System and method for composing a multi-lingual instructional software |
Zechary Chang, Pinky Ma, Bing Bian |
2007-11-13 |
| 7153139 |
Language learning system and method with a visualized pronunciation suggestion |
Zechary Chang, Pinky Ma |
2006-12-26 |
| 6990476 |
Story interactive grammar teaching system and method |
Zechary Chang, Ken Kung |
2006-01-24 |
| 6782352 |
System and method for monitoring server host operation |
Kuang-Shin Lin |
2004-08-24 |
| 6612842 |
System and method for interactive giving tutorial information |
Harley Fu, Yeats Gu, Zechary Chang |
2003-09-02 |
| 6341959 |
Method and system for learning a language |
Fred Chen, Great HE, Hope H. R. Gao |
2002-01-29 |
| 5216709 |
Electronic device for providing information related to an input telephone number |
Ching-Sung Chang, Dai-Shui Ho |
1993-06-01 |
| 4881260 |
Automatic telephone answering device with multiple outgoing messages and selecting means |
— |
1989-11-14 |
| 4847895 |
Controllable annunciator using ring signal |
— |
1989-07-11 |
| 4835625 |
Method of recording timing data generated by a central processing unit onto a tape for digital display |
— |
1989-05-30 |
| 4825464 |
Successive key operating mechanism for telephone dialing |
— |
1989-04-25 |