| 摘要 |
<p>A digital television receiving terminal, a positioning method and system thereof are disclosed. Wherein the method includes the steps of: locking a frequency point for receiving a program by a user according to the received on-demand signal input by the user; determining a Transmission Stream Identity code (TSID) of the frequency point in the TSID broadcasted by the locked frequency point for receiving the program by the user; comparing the TSID with a prestored area code, and judging whether the locked frequency point for receiving the program by the user is a valid on-demand frequency point, and if so, the positioning is successful. The present invention avoids the needs of scanning and acquiring the area code when demand is performed by the user each time, thus saving the starting up time, and having strong applicability.</p> |
