摘要:
A keyboard entry terminal generates character codes in response to an operator''s key selections. The code is transmitted to voice grade telephone lines through an acoustic coupler with a telephone receiver cradled thereon. An ordinary television receiver is connected to the terminal to display the operator''s message as it is typed on the keyboard. An identical terminal is located at the other end of the telephone lines so that the code transmitted over the lines is received by the remote terminal through its acoustic coupler, upon which the receiving station telephone receiver is similarly cradled. Again, an ordinary TV receiver is connected to the terminal at the receiver station for the display of the incoming message. Transmission from the receiver station can then take place as outlined above.
摘要:
A data terminal has a keyboard capable of encoding data. A switch determines whether a diode matrix will encode keyboard entries in Baudot or ASCII code. A modem couples the encoded keyboard data to telephone lines for transmission to another terminal station. Data may be received by the terminal in either Baudot or ASCII code. The received data is translated to alphanumeric video signals that may be displayed on a conventional television receiver.