SU428569A1 - ELECTRONIC ROOM WITH INDICATION AND STORAGE OF CALLABLE NUMBER - Google Patents

Description

one

The invention and means for subscriber ringing PBX devices with manual and automatic calling and indication of the dialed number.

Electric dial dialers used in telephone sets are known to allow automatic dialing of pre-programmed numbers, as well as the dialing of any number using a conventional dialer.

In the well-known electronic dialers, it is impossible to control the correctness of the formation of the IRI number with the power of the dial dial;

no time indication of all digits of a number dialed manually using a dialer and stored for automatic redialing;

It is not possible to correct one or more characters of a number dialed using the dial dial pad and stored in counters for automatic redialing. As a result, if during the initial dialing one of the number characters was formed incorrectly, then for isravleii need to re-dial all the characters of the number, which leads to an increase in the time of dialing with repeated calls.

To speed up dialing for repeated calls and to control the correctness of dialing according to

In the invention, the combined outputs of the manual dialing register are connected to the pulse inputs of the matching ten-decade sign counters with digital indicators and connected to the input of the sign switch, the potential outputs of which are randomly connected to the control inputs of the decade sign counters with digital indicators.

The drawing shows a block diagram of an electronic dialer, comprising a clock generator 1, a switching and control circuit 2, a manual dialing register 3, an automatic dialing register 4, an inter-discharge pause register 5, a sign switch 6, decadal sign counters 7 and 5 with digital indicators , electronic keypad 9, automatic dialing valves 10, manual dialing keyboard P.

In the initial state, the clock generator I operates and outputs to the switching and control circuit 2 the clock frequencies necessary for the operation of the dialer.

Under the action of the control signals, the cell register 3 of the manual dialing, the register 4 of the automatic dialing, the register 5 of the interdischarge pause, the character switch b, as well as the decade sign counters 7, S are in the "zero state."

All digits of the indicator of the decade counters are extinguished, and the locking potentials are fed to the control inputs of the electronic weir lol 9. Klapayy 10 automatic dialing closed signal control circuit.

There are no input signals on the horizontal cables of the electric flooring software. The keys of the manual dialing // are set to pulses underneath, but since all the buttons of the keyboard are open, these buttons do not affect the manual dialing set.

The input circuits of the coincidence of the decade sign counters 7.8 with indicators are closed by signals from the potential outputs of the switch 6.

For random manual dialing, the manual / manual dialing is used. By briefly pressing the button of the keyboard, the input circuit of the corresponding whose: ki register 5 of the manual dialing is closed, and the "unit" is written in this cell.

To prevent multiple units from being written to the manual dial register as long as one of the buttons on the manual dial key is closed, the scoring signals to the manual dial register are not received.

After the manual dialing button has been opened, the unit of the node written to the register by the action of the read signals supplied from the switching and control circuit 2 begins to advance to the output of the register 3. At the combined output of the register 3, a series of pulses is formed. The number of pulses in this series is determined by the number of the cell into which the "one" was previously recorded.

During the progress of the unit but the register 3, signals for recording to the manual // manual dialing are blocked, which prevents failures in case of a manual keypad shortcut before the end of the next set of pulses.

Through the output key, split into 1 in scheme 2, the dial pulses are fed to the IB line.

P1; dialing is dialed as follows. .

Prior to the appearance at the output of register 3 of a manual set of the first series of pulses, the circuit 2 switching and control sets the initial cell of the switch 6 to a unit so that the signal from the potential output of this cell breaks the input circuit of the decadic sign counter 7 with a digital indicator that counts the number of inquiries in the first series, and at the end of the counting on the digital indicator of the counter 7, the digit corresponding to the first digit of the number is highlighted.

Before issuing the second set of pulses from register 3, the switching and control circuit 2 advances by one bit the unit recorded in the switch 6. The output signal from the second cell of the switch 6 opens the input circuit of the second decade counter with the digital one.

indicator that counts the number of pulses in the second series of pulses set. At the end of the counting, a digit corresponding to the second digit of the number is displayed on the digital display of this counter.

Analogously, the scheme works by manually typing the remaining characters of the number.

The signals, however, are synergistic when manually dialing a number on the pulse outputs of the sign switch (), they do not go to the horizontal P1ILE of the electronic dialer floor 9, since the automatic dialing valves 10 are closed by a signal from the switching and control circuit 2.

After the end of dialing, but the measure in decadic sign counters stores the code of the dialed number, and with the help of indicators installed in the counters, this number can be checked visually.

To correct one or several characters of the number, the code of which is stored in decade characters, special buttons are provided in the switching and control scheme.

By pressing the button corresponding to the correctable number stored in decade sign counters, a correction signal is generated, the action of which decides the corrected sign to zero, and the 6 C | I: switch 1 from the potential output of the corresponding cell prepares the input circuit match specified decade counter. Entering a new code value into the decade counter of a sign to be corrected is performed using keyboard 11.

It is possible to simultaneously repair or replace several characters of the number stored in decade-digit counters, if the newly entered characters must have the same code. To do this, simultaneously the buttons "correction, corresponding to correctable characters are pressed, as a result, the potentials from the outputs of the sign switch 6 open the input schemes for matching decade counters of the correctable characters, and using the manual dial pad //, the code value is entered simultaneously into these counters .

In order to save the time of preliminary entry or correction of a previously recorded number, a feed to the corresponding dialer of an increased clock frequency is provided.

When automatically dialing a number, the code of which is stored in decadic signed counters, the "repeat from circuit 2, switching signal" control signal opens valves 10 and writes "one to the first cell of switch 6.

The signal from the pulse output of the first cell of the switch 6 through the open valves 10 is supplied to the keys of the first horizontal row of the electronic dial floor 9. Since the potential from the output of the counter 7 is open