Onhook/offhook controller for intelligent telephone
Title：
Onhook/offhook controller for intelligent telephone
Application Number：
 02117003
Application Date：
 2002/04/27
Announcement Date：
 2003/11/05
Pub. Date：
Publication Number：
 1453985
Announcement Number：
 1193577
Grant Date：
 2005-3-16
Granted Pub. Date：
 2005-3-16
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H04M 11/00, H04M 3/42
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Yang Shiyuan, Ye Zhaohui, Tang Guangrong
Key Words：
 Onhook/offhook controller, intelligent telephone
Abstract：
 The device consists of bridge rectifier, relay and monolithic computer as phone line a and 6 are connected with the bridge rectifier which its negative end is connected to earthing and its positive end to foot 2 of the relay as well as foot, of the relay is connected with the monolithic computer. It is mainly applied in remote control device of the intelligent phone.
Claim：
Priority：
PCT：
LegalStatus：

Recommend this patent:
1 2 3 4 5
Average ( 0 votes):
                                                                          Recommended Patents>>

Relevancy information



Other Patents of Same Inventor

Phonetic prompt device for intelligent phone set
Remote control method and device for intelligent telephone
Intelligent domestic network system bus interface unit
Household network telecontroller and its control method



News & Events More>>

Last Update  
2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







Copyright 2008-2015 All Rights Reserved Patent License of China.      Designed by Easygo