Title :
The introduction of Taiwan´s automatic computer time service
Author :
Lin, S.Y. ; Lin, C.C. ; Sheu, C.M. ; Liao, C.S.
Author_Institution :
Telecommun. Lab., Minist. of Transp. & Commun., Chung-Li, Taiwan
Abstract :
A PC-based system that controls up to 8 lines, measures the delay and transmits an ASCII time-code has been built. It will connect to any modem at speeds from 1200 bits/s to 9600 bits/s using standard protocols. The fluctuation of total delay is less then 0.5 ms. That is, we can synchronize the time system of the whole Taiwan island via the telephone network with an accuracy of 0.5 ms if we can measure the path delay of our telephone system.
Keywords :
code standards; computerised control; delays; synchronisation; telecommunication computing; telecommunication control; telecommunication services; telecommunication standards; telephone networks; time measurement; 1200 to 9600 bit/s; ASCII time-code; PC-based system; Taiwan automatic computer time service; hardware modules; modem connection; path delay; performance test; standard protocols; synchronization; telephone network; total delay fluctuation; Clocks; Code standards; Delay effects; Fluctuations; Modems; Prototypes; Pulse generation; Synchronization; Telephony; Time measurement;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547078
