摘要:
A transmitter having a pulse coder and programmer assembly controls withdrawal of energy from the telephone lines at a reporting station to intermittently unload the lines for pulse dialing purposes and to operate a pair of oscillators during each operational cycle. The output of one of the oscillators is intermittently interrupted during the message period in accordance with a pulse code pattern. Recycling of the transmitter is selectively terminated by a return signal originating from the receiving station dialed by the transmitter.
摘要:
The time at which a signal is received at a receiving station is recorded in code form on unmarked recording medium by encoding the time registered on a clock mechanism. A pulse code device driven by the recorder drive mechanism is rendered operative to record groups of signal pulse trains separated by spacing signals. Encoding devices select the number of signal pulses in each group in accordance with the time registering positions of timing wheels associated with the clock mechanism.
摘要:
A CONVERTER FOR TRANSFORMING SPACED SERIES OF INPUT PULSES REPRESENTING A DECIMAL CODE INTO BINARY INFORMATION ON A MULTITRACK TAPE FED FROM A TAPE PERFORATED SUITABLE FOR COMPUTER READ IN PURPOSES. EACH SERIES OF INPUT PULSES ADVANCES A STEPPER SWITCH TO A DECIMAL CONTACT POSITION DURING A TIMED READ IN PERIOD FOLLOWED BY A RECORDING PERIOD DURING WHICH ONE OR MORE PUNCH DEVICES ARE OPERATED BY A RECODING PULSE TRANSMITTED THROUGH DIODE LOGIC FROM THE STEPPER SWITCH CONTACT AT WHICH THE SWITCH WIPER STOPPED DURING THE PRECEDING READ IN PERIOD. A TAPE ADVANCING PULSE OF LONGER DURATION THAN THE RECORDING PULSE ALSO INITIATED AT THE BEGINNING OF THE RECORDING PERIOD IN ORDER TO OPERATE THE TAPE ADVANCING MECHANISM OF THE TAPE PERFORATOR AFTER RECORDING IS COMPLETED. SIGNAL CONVERSION IS COMPLETED WITH RESET OF THE STEPPER SWITCH TERMINATING THE TAPE ADVANCE PULSE AFTER WHICH THE TAPE IS ADVANCED BY A PREDETERMINED AMOUNT.