O Uso de Padr~ oes na Integra c~ ao de Vis~ oes Modeladas com UML
2002
A communication apparatus is used in a radio control apparatus for remotely controlling the locking and unlocking of the doors or trunk of a vehicle and other uses. In this communication apparatus, a leader pulse having a predetermined duration is transmitted from the transmitter to the receiver prior to transmission of data. The receiver is intermittently operated for a period shorter than the duration of the leader pulse by periodic operating pulses issued for connecting its circuits to a battery power source, and detects the transmission of a leader pulse in order to hold the receiver in the operating condition for a predetermined period sufficient to receive the following data pulses.
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