摘要:
A data communication apparatus having an error correction communication function comprises a memory for storing received data, a processor for processing the data stored in the memory, and means for sending out a retransmission request signal for previously received data when next data cannot be stored in the memory.
摘要:
A data communication apparatus having an auto-calling function for effecting data communication in response to the reception of a signal related to data communication in a predetermined period after the auto-calling comprises a detection unit for detecting a voice signal and a unit for extending the predetermined signal monitoring period in accordance with the detection of the detection unit.
摘要:
A communication apparatus comprises a first detector for detecting a calling signal from a line, a tone generator for generating quasi-calling tone and sending it out to the line, a second detector for detecting a signal indicating the data communication from a calling station, and a control unit for starting the data communication in response to the detection by the second detector. The second detector detects the signal while the tone generator sends out the quasi-calling tone when the calling signal is received.
摘要:
A communication apparatus comprises a first detector for detecting a calling signal from a line, a tone generator for generating quasi-calling tone and sending it out to the line, a second detector for detecting a signal indicating the data communication from a calling station, and a control unit for starting the data communication in response to the detection by the second detector. The second detector detects the signal while the tone generator sends out the quasi-calling tone when the calling signal is received.
摘要:
A data communication apparatus having an auto-calling function for effecting data communication in response to the reception of a signal related to data communication in a predetermined period after the auto-calling comprises a detection unit for detecting a voice signal and a unit for extending the predetermined signal monitoring period in accordance with the detection of the detection unit.
摘要:
A data communication apparatus having an error correction communication function comprises a memory for storing received data, a processor for processing the data stored in the memory, and means for sending out a retransmission request signal for previously received data when next data cannot be stored in the memory.