| 摘要 |
A telephone-controlled television (TV) set ( 30 ) includes: a memory ( 311 ) for storing user-defined locking/unlocking information used to control a switch of the TV set between a locking state and a non-locking state; a communication port ( 312 ) connected with a telephone network ( 20 ), for receiving an incoming call from a telephone ( 10 ) via the telephone network; a interactive voice response system ( 315 ) connected to the communication port, for answering the incoming call and prompting a caller of the incoming call to input control information; a state controlling unit ( 303 ) for computing a comparing result between the control information and the user-defined locking/unlocking information, and determining whether to unlock the TV set according to the comparing result if the TV is in the locking state; and a switching circuit ( 304 ) under control of the state controlling unit, for switching on or off, respectively, unlocking or locking the TV set.
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