System for automatic identification of calling party{40 s telephone number to receiving party

Claim 2

A calling number identifying system for use with subscriber''s telephones in a telephone system to automatically display at a called party''s telephone set the telephone number of a calling party, comprising calling number transmitter means associated with subscriber''s telephones operative through a full cycle upon activation thereof to generate and apply to a calling party''s telephone lines a signal pulse train distinctively identifying the calling party''s assigned telephone number, number display readout means for the subscriber''s telephones to visually display telephone numbers in proximity to the telephones of called parties, identifier-signal receiver means for the telephones coupled to a called party''s telephone lines and to said readout means to operate the associated readout means to display at a called telephone the telephone number signified by the signal pulse train identifying a calling party, and control means coupled to the telephone lines and responsive to circuit interconnection of a calling telephone and called telephone to activate the transmitter means for the calling telephone to generate and transmit its signal pulse train and to activate the identifier-signal receiver means of the called telephone to respond to the transmitted signal pulse train and operate the associated readout means to display the calling party''s telephone number, said transmitter means including means for producing a pulse of a first type for each digit of the calling party''s telephone number signifying completion of the signalling of the number for such digit, means for producing pulses of a second type having a selected numerical relationship to the numerals in said digits, and means for applying to the telephone lines of the calling party''s telephone selected numbers of said pulses of the second type preceding said pulses of the first type to produce said signal pulse train.

Claim 3

A calling number identifying system as defined in claim 1, wherein said control meAns includes means coupled to the audio lines of the associated calling party telephone responsive to audio line signals signifying ringing of the called party telephone to activate the transmitter means to generate and transmit its signal pulse train.

Claim 4

A calling number identifying system as defined in claim 2, wherein said receiver includes a first ring-counter circuit and a second ring-counter circuit having said readout means coupled between selected stages of the first and second ring-counter circuits, and means for applying pulses to said first ring-counter circuit responsive to said first type pulses and for applying pulses to said second ring-counter circuit responsive to said second type pulses for operating the readout means to display the numerals making up the digits of the calling party''s telephone number.

Claim 5

A calling number identifying system as defined in claim 1, wherein said control means includes means, coupled to selected lines of the associated telephone to which ringing signals are applied, operative responsive to ring signals on said selected lines to activate the receiver means connected therewith for responding to said signal pulse train thereafter applied to the telephone lines of the associated telephone and operating the readout means for displaying the calling party telephone number signified by the pulses.

Claim 6

A calling number identifying system as defined in claim 4, wherein said receiver includes a first ring-counter circuit and a second ring-counter circuit having said readout means coupled between selected stages of the first and second ring-counter circuits, and means for applying pulses to said first ring-counter circuit responsive to said first type pulses and for applying pulses to said second ring-counter circuit responsive to said second type pulses for operating the readout means to display the numerals making up the digits of the calling party''s telephone number.

Claim 7

A calling number identifying system as defined in claim 1, wherein said receiver means comprises an input section including amplifier and frequency selector and associated relays responsive to the pulses making up the signal pulse train applied to the telephone lines of the calling party and transmitted to the called party''s telephone lines for producing D.C. pulses distinctively representing the pulses of the signal pulse train to activate portions of said receiver means operating said readout means.

Claim 8

A calling number identifying system as defined in claim 1, wherein said receiver includes a first ring-counter circuit and a second ring-counter circuit having said readout means coupled between selected stages of the first and second ring-counter circuits, and means for applying pulses to said first ring-counter circuit responsive to said first type pulses and for applying pulses to said second ring counter circuit responsive to said second type pulses for operating the readout means to display the numerals making up the digits of the calling party''s telephone number.

Claim 9

A calling number identifying system for use with subscriber''s telephones in a telephone system to automatically display at a called party''s telephone set the telephone number of a calling party, comprising calling number transmitter means associated with subscriber''s telephones operative through a full cycle upon activation thereof to generate and apply to a calling party''s telephone lines a signal pulse train distinctively identifying the calling party''s assigned telephone number, number display readout means for the subscriber''s telephones to visually display telephone numbers in proximity to the telephones of called parties, identifier-signal receiver means for the telephones coupled to a called party''s telephone lines and to said readout means to operate the associated readout means to display at a called telephone the telephone number signified by the signal pulse train identifying a calling party, and control means coupled to the telephone lines and responsive to Circuit interconnection of a calling telephone and called telephone to activate the transmitter means for the calling telephone to generate and transmit its signal pulse train and to activate the identifier-signal receiver means of the called telephone to respond to the transmitted signal pulse train and operate the associated readout means to display the calling party''s telephone number, said transmitter means including first means for producing a first type pulse of a first selected frequency for each digit of the telephone number of the associated telephone, second means for producing second type pulses of a second selected frequency wherein the second type pulses bear a selected numerical relationship to the numerals in the respective digits, and switch means cycled automatically through a complete sequence upon activation of the transmitter means to apply to the associated telephone lines combinations of said second type pulses and first type pulses identifying the numerals for each of the digits of the calling party''s telephone number.

Claim 10

A calling number identifying system for use with subscriber''s telephones in a telephone system to automatically display at a called party''s telephone set the telephone number of a calling party, comprising calling number transmitter means associated with subscriber''s telephones operative through a full cycle upon activation thereof to generate and apply to a calling party''s telephone lines a signal pulse train distinctively identifying the calling party''s assigned telephone number, number display readout means for the subscriber''s telephones to visually display telephone numbers in proximity to the telephones of called parties, identifier-signal receiver means for the telephones coupled to a called party''s telephone lines and to said readout means to operate the associated readout means to display at a called telephone the telephone number signified by the signal pulse train identifying a calling party, and control means coupled to the telephone lines and responsive to Circuit interconnection of a calling telephone and called telephone to activate the transmitter means for the calling telephone to generate and transmit its signal pulse train and to activate the identifier-signal receiver means of the called telephone to respond to the transmitted signal pulse train and operate the associated readout means to display the calling party''s telephone number, said transmitter means including first means for producing a first type pulse of a first selected frequency for each digit of the telephone number of the associated telephone, second means for producing second type pulses of a second selected frequency wherein the second type pulses bear a selected numerical relationship to the numerals in the respective digits, and switch means cycled automatically through a complete sequence upon activation of the transmitter means to apply to the associated telephone lines combinations of said second type pulses and first type pulses identifying the numerals for each of the digits of the calling party''s telephone number.

Claim 11

A calling number identifying system as defined in claim 8, wherein said control means includes means coupled to the audio lines of the associated calling party telephone responsive to audio line signals signifying ringing of the called party telephone to activate the transmitter means to generate and transmit its signal pulse train.

Claim 12

A calling number identifying system as defined in claim 28, wherein said control means includes means, coupled to selected lines of the associated telephone to which ringing signals are applied, operative responsive to ring signals on said selected lines to activate the receiver means connected therewith for responding to said signal pulse train thereafter applied to the telephone lines of the associated telephone and operating the readout means for displaying the calling party telephone number signified by the pulses.

Claim 13

A calling number identifying system as defined in claim 8, wherein said receiver includes a first ring-counter circuit and a second ring-counter circuit having said readout means coupled between selected stages of the first and second ring-counter circuits, and means for applying pulses to said first ring-counter circuit responsive to said first type pulses and for applying pulses to said second ring-counter circuit responsive to said second type pulses for operating the readout means to display the numerals making up the digits of the calling party''s telephone number.