Telephone repertory dialer

Claim 2

A telephone repertory dialing system for generating signals representative of the digits of a plurality of directory numbers, said system comprising pulse generating means for generating a group of pulses equal in number to the number of digits of a directory number, signal generating means, programmable pulse routing means including a plurality of input conductors a plurality of output conductors, and means for selectively interconnecting each input conductor with one of said output conductors, path select means connected between said pulse generating means and said input conductors, including a plurality of diodes each connected in series with one of said input conductors at the output of said path select means, said pulse routing means being operative to route each pulse generated by said pulse generating means to one of the inputs of a pulse decoding means over a separate path each of which paths represents a different digital value, said pulse decoding means connected to each digit output conductor of said pulse routing means and said signal generating means to provide frequency output signals representative of the digit signals extended thereto.

Claim 3

A telephone repertory dialing system as set forth in claim 1 in which said generating means includes a plurality of oscillator circuits for generating multifrequency signals for representing the digits of said selected directory number.

Claim 4

A telephone repertory dialing system for generating signals representative of a plurality of directory numbers, said system comprising pulse generating means for generating a plurality of pulses over outputs thereof, means including pulse decoding means and signal generating means responsive to said pulses for generating a like plurality of signals representative of digitS of said directory numbers, pulse routing means including a plurality of matrices, each having a first conductor bearing support member having a group of input conductors, a second conductor bearing support member having a group of output conductors connected to provide pulse digit representing signals to said pulse decoding means, and a third support member carrying removable contact means for selectively interconnecting each input conductor with one of said output conductors to provide said digit representing signals, each of said matrices providing a different set of paths from input to output to provide a plurality of sets of paths over said plurality of matrices, each path of a set representing a digit and each path set representing digits of a directory number, and path set select means including a plurality of diodes each of which is connected in series between one of the outputs of said pulse generating means and an associated one of said input conductors to select said path set select means being operable to select a particular one of said path sets to route said pulses to said pulse decoding means whereby said plurality of signals represent digits of a selected one of said directory numbers.

Claim 5

A telephone repertory dialing system for generating signals representative of a plurality of directory numbers, said system comprising pulse generating means for generating a plurality of pulses over outputs thereof, means including pulse decoding means and signal generating means responsive to said pulses for generating a like plurality of signals representative of digitS of said directory numbers, pulse routing means including a plurality of matrices, each having a first conductor bearing support member having a group of input conductors, a second conductor bearing support member having a group of output conductors connected to provide pulse digit representing signals to said pulse decoding means, and a third support member carrying removable contact means for selectively interconnecting each input conductor with one of said output conductors to provide said digit representing signals, each of said matrices providing a different set of paths from input to output to provide a plurality of sets of paths over said plurality of matrices, each path of a set representing a digit and each path set representing digits of a directory number, and path set select means including a plurality of diodes each of which is connected in series between one of the outputs of said pulse generating means and an associated one of said input conductors to select said path set select means being operable to select a particular one of said path sets to route said pulses to said pulse decoding means whereby said plurality of signals represent digits of a selected one of said directory numbers.

Claim 6

A telephone repertory dialing system as set forth in claim 3 in which said path set selecting means includes a plurality of pushbuttons one associated with each path set for providing a control signal whenever one of said pushbuttons is depressed, and means responsive to said signal to route said pulses to a selected one of said path sets whenever the corresponding pushbutton is depressed.

Claim 7

A telephone repertory dialing system as set forth in claim 3 in which said path set selecting means includes separate access means for each matrix, each said access means being connected between said pulse generating means and one of said matrices, and means for enabling the access means for a selected one of said matrices whereby said pulses are gated to the input of said selected matrix.

Claim 8

A telephone repertory dialing system comprising; control means operative to provide first and second sets of control signals, pulse generating means responsive to a control signal of said first set to generate a plurality of sequential pulses over a plurality of outputs thereof, signal generating means, pulse decoding means responsive to each of said sequential pulses to provide enabling signals for said signal generating means, said signal generating means being responsive to said enabling signals to generate signals representative of digits of a plurality of directory numbers, pulse routing means for providing a plurality of sets of paths for said pulses between said pulse generating means and said pulse decoding means, each path of a set representing a digit and each path set representing digits of one of said directory numbers, and path set select means including logic gate means having a plurality of logic gates each having an input connected to a different output of said pulse generating means and an output and diode means including a plurality of diodes each connecting the output of one of said logic gates to a different path of each of said path sets, said logic gate means being responsive to a control signal of said second set to gate said sequential pluses to said pulse decoding means over the paths of a selected path set, whereby a set of digit representing pulses representative of a directory number selected to be dialed is provided over said paths to said pulse decoding means.

Claim 9

A telephone repertory dialing system comprising; control means operative to provide first and second sets of control signals, pulse generating means responsive to a control signal of said first set to generate a plurality of sequential pulses over a plurality of outputs thereof, signal generating means, pulse decoding means responsive to each of said sequential pulses to provide enabling signals for said signal generating means, said signal generating means being responsive to said enabling signals to generate signals representative of digits of a plurality of directory numbers, pulse routing means for providing a plurality of sets of paths for said pulses between said pulse generating means and said pulse decoding means, each path of a set representing a digit and each path set representing digits of one of said directory numbers, and path set select means including logic gate means having a plurality of logic gates each having an input connected to a different output of said pulse generating means and an output and diode means including a plurality of diodes each connecting the output of one of said logic gates to a different path of each of said path sets, said logic gate means being responsive to a control signal of said second set to gate said sequential pluses to said pulse decoding means over the paths of a selected path set, whereby a set of digit representing pulses representative of a directory number selected to be dialed is provided over said paths to said pulse decoding means.

Claim 10

A telephone repertory dialing system as set forth in claim 6 in which said control means includes a plurality of pushbuttons each providing a gated signal when depressed, and logic circuit means connected to said pushbuttons and responsive to said gated signal to provide said first and second sets of control signals.

Claim 11

A telephone repertory dialing system as set forth in claim 6 in which said pulse routing means includes a group of input conductors connected to outputs of said logic gate means over said diode means, a group of output conductors connected to inputs of said pulse decoding means, and means for selectively connecting conductors of said input group with conductors of said output group.

Claim 12

A telephone repertory dialing system comprising control means including a plurality of pushbuttons each providing a gated signal when depressed, logic circuit means connected to said pushbuttons and responsive to said gated signal to provide first and second sets of control signals, pulse generating means responsive to a control signal of said first set to generate a plurality of sequential pulses, means including signal generating means and pulse decoding means responsive to each of said sequential pulses to generate signals representative of digits of a plurality of directory numbers, pulse routing means for providing a plurality of sets of paths for said pulses between said pulse generating means and said pulse decoding means, each path of a set representing a digit and each path set representing digits of one of said directory numbers, path set select means including logic gate means connected between said pulse generating means and said pulse routing means, and clock pulse generating means for generating a third set of control signals including means for providing a first clock pulse for enabling said logic circuit means, and means for providing a second clock pulse for enabling said pulse generating means and said logic gate means at a time after said logic circuit means have been enabled, said logic gate means being responsive to a control signal of said second set to gate said sequential pulses to said pulse decoding means over a selected one of said path sets, whereby a pulse code representative of a directory number selected to be dialed is established for said sequential pulses, and said signal generating means generates signals representing the digits of said selected directory number.

Claim 13

A telephone repertory dialing system comprising control means including a plurality of pushbuttons each providing a gated signal when depressed, logic circuit means connected to said pushbuttons and responsive to said gated signal to provide first and second sets of control signals, pulse generating means responsive to a control signal of said first set to generate a plurality of sequential pulses, means including signal generating means and pulse decoding means responsive to each of said sequential pulses to generate signals representative of digits of a plurality of directory numbers, pulse routing means for providing a plurality of sets of paths for said pulses between said pulse generating means and said pulse decoding means, each path of a set representing a digit and each path set representing digits of one of said directory numbers, path set select means including logic gate means connected between said pulse generating means and said pulse routing means, and clock pulse generating means for generating a third set of control signals including means for providing a first clock pulse for enabling said logic circuit means, and means for providing a second clock pulse for enabling said pulse generating means and said logic gate means at a time after said logic circuit means have been enabled, said logic gate means being responsive to a control signal of said second set to gate said sequential pulses to said pulse decoding means over a selected one of said path sets, whereby a pulse code representative of a directory number selected to be dialed is established for said sequential pulses, and said signal generating means generates signals representing the digits of said selected directory number.

Claim 14

A repertory dialing system as set forth in claim 9 which includes inhibit means for normally extending an enabling potential to each of said pushbuttons and for applying a disabling potential to said pushbutton while said pulses are being generated by said pulse generating means.

Claim 15

A telephone repertory dialing system comprising; a plurality of pushbuttons each for selecting a different one of a plurality of directory numbers to be dialed and each providing a gated signal when depressed, logic circuit means connected to said pushbuttons and responsive to said gated signal to provide first and second control signals, pulse generating means responsive to said first control signal to generate a plurality of sequential pulses, encoding means responsive to said second control signal for encoding said sequential pulses with a digital value related to the digits of a directory number selected to be dialed, clock pulse generating means for generating a third set of control signals including means for providing a first clock pulse for enabling said logic circuit means and means for providing a second clock pulse for enabling said pulse generating means and said encoding means at a time after said logic circuit means are enabled, signal generating means responsive to said coded pulses to generate signals which represent the digits of said selected directory number, and inhibit means for inhibiting the generation of additional control signals whenever a pushbutton remains depressed beyond the cessation of pulses generated by said pulse generating means.

Claim 16

A telephone repertory dialing system comprising; a plurality of pushbuttons each for selecting a different one of a plurality of directory numbers to be dialed and each providing a gated signal when depressed, logic circuit means connected to said pushbuttons and responsive to said gated signal to provide first and second control signals, pulse generating means responsive to said first control signal to generate a plurality of sequential pulses, encoding means responsive to said second control signal for encoding said sequential pulses with a digital value related to the digits of a directory number selected to be dialed, clock pulse generating means for generating a third set of control signals including means for providing a first clock pulse for enabling said logic circuit means and means for providing a second clock pulse for enabling said pulse generating means and said encoding means at a time after said logic circuit means are enabled, signal generating means responsive to said coded pulses to generate signals which represent the digits of said selected directory number, and inhibit means for inhibiting the generation of additional control signals whenever a pushbutton remains depressed beyond the cessation of pulses generated by said pulse generating means.

Claim 17

A telephone repertory dialing system for generating signals representative of directory numbers, said system comprising pulse generating means for generating a plurality of pulses over outputs thereof, means including pulse decoding means and signal generating means responsive to said pulses for generating a like plurality of signals representative of digits of said directory numbers, pulse routing means including a matrix having a first conductor bearing support member having a group of input conductors, a second conductor bearing support member having a group of output conductors connected to provide digit representing signals to said pulse decoding means, and a third support member carrying removable contact means for selectively interconnecting each input conductor with one of said output conductors to provide said digit representing signals, and path select means including a plurality of diodes each of which is connected in series between one of the outputs of said pulse generating means and an associated one of said input conductors, said path select means being operative to sequentially select a different one of said input conductors to route a pulse from said pulse generating means to said pulse decoding means whereby the plurality of signals thus routed over said sequentially selected inputs represent the digits of a selected one of said directory numbers.

Claim 18

A telephone repertory dialing system for generating signals representative of directory numbers, said system comprising pulse generating means for generating a plurality of pulses over outputs thereof, means including pulse decoding means and signal generating means responsive to said pulses for generating a like plurality of signals representative of digits of said directory numbers, pulse routing means including a matrix having a first conductor bearing support member having a group of input conductors, a second conductor bearing support member having a group of output conductors connected to provide digit representing signals to said pulse decoding means, and a third support member carrying removable contact means for selectively interconnecting each input conductor with one of said output conductors to provide said digit representing signals, and path select means including a plurality of diodes each of which is connected in series between one of the outputs of said pulse generating means and an associated one of said input conductors, said path select means being operative to sequentially select a different one of said input conductors to route a pulse from said pulse generating means to said pulse decoding means whereby the plurality of signals thus routed over said sequentially selected inputs represent the digits of a selected one of said directory numbers.

Claim 19

A telephone repertory dialing system as set forth in claim 12 wherein said pulse routing means comprises an orthogonal matrix with the input conductors being disposed on said first conductor bearing member in a plurality of horizontal rows and the output conductors being disposed on said second conductor bearing sheet in a plurality of vertical columns.