| 摘要 |
A transceiver (125) for receiving messages and transmitting acknowledgments includes a receiver (365) for receiving a message and time information indicative of a first time slot, a display (400) coupled to the receiver (365) for presenting the message, and a monitor element (430) coupled to the display (400) for determining, at occurrence of the first time slot, whether the message has been presented. A transmitter (380) coupled to the monitor element (430) and the receiver (365) transmits, in response to occurrence of the first time slot, a message acknowledgment when the message has not been presented. When the message has been previously presented, a read acknowledgment, rather than the message acknowledgment, is transmitted to indicate both message reception and message presentation.
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