Patent US3555196A successfully refreshed from Google Patents.
US3555196A
Expired / Lapsed
US
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Telephone switching system with programmed auxiliary control for providing special services
Assignee: Nortel Networks Ltd
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Filing: 1967-09-21
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Granted: 1971-01-12
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Expires: 1987-09-21
Abstract
Abstract A wired logic common control telephone system which has a program controlled auxiliary control system or central programmed control unit operating in consort therewith for particular calls, in order that special features and Centrex operation can be provided to subscribers. For certain call features, interface to the program controlled control unit is made from the marker via a number group connector upon designation of a particular class of service; for others a special circuit which splits a certain type of junctor provides access to an auxiliary interline switching means which is controlled by the program controlled control system, and is activated by a signal from the subscriber whose line is terminated on the common control system. For Centrex operation, a private branch exchange or a remote switching unit is terminated via trunk circuits on a line-link frame in the common control system, and is controlled by the main office program controlled control system.
Inventors
- 👤 Fred J Singer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:04
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/54; H04Q3/545; H04Q3/54508; H04Q3/54525
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
94 words
A telephone switching system comprising: a. transmission paths; b. first switching means for interconnecting the transmission paths; c. a common controlling means connected to the switching means for controlling the operation of the switching means; and d. programmed controlling means connected to the common controlling means, for modifying the operation thereof in a program responsive manner, in response to a request by the common controlling means for such connection, upon recognition by the common controlling means of its inability to process a request for service from one of the transmission paths without such connection.
Claim 2
Dependent Claim
94 words
A telephone switching system comprising: a. transmission paths; b. first switching means for interconnecting the transmission paths; c. a common controlling means connected to the switching means for controlling the operation of the switching means; and d. programmed controlling means connected to the common controlling means, for modifying the operation thereof in a program responsive manner, in response to a request by the common controlling means for such connection, upon recognition by the common controlling means of its inability to process a request for service from one of the transmission paths without such connection.
Claim 3
Dependent Claim
76 words
A telephone switching system as defined in claim 1 wherein the common controlling means is adapted to control the interconnection of first and second transmission paths by the switching means after digit-codes are received from over the first transmission path, and the programmed controlling means is adapted to be connected to, and modify the operation of the common controlling means in response to the reception of predetermined signals over predetermined ones of the first transmisSion paths.
Claim 4
Dependent Claim
14 words
second receiving means for said predetermined digit-code connected to said number group bypass means;
Claim 5
Dependent Claim
14 words
second receiving means for said predetermined digit-code connected to said number group bypass means;
Claim 6
Dependent Claim
154 words
A telephone switching system as defined in claim 2 wherein the common controlling means comprises: a. digit registration means connected to one of said transmission paths for registering first digit-codes received over one of said transmission paths under control of the common controlling means; b. number group means for translating the first digit-codes into indications of called transmission path locations for the common controlling means; c. bidding means for requesting service of the programmed controlling means upon reception in the digit registration means of a predetermined one of the first digit-codes; d. number group means bypass means for transmitting said predetermined digit code to the programmed controlling means, instead of the number group, in response to said predetermined digit-code; and e. first receiving means for receiving a translated second digit-code from the programmed controlling means, as if said translated digit-code had come from the digit registration means; and wherein the programmed controlling means comprises:
Claim 7
Dependent Claim
17 words
programmed means connected to said receiving means for translating said predetermined digit-code into said second digit-code; and
Claim 8
Dependent Claim
17 words
programmed means connected to said receiving means for translating said predetermined digit-code into said second digit-code; and
Claim 9
Dependent Claim
46 words
A telephone transmission system as defined in claim 3 further comprising means for indicating to the common control system classes of service associated with said first digit-codes, and wherein said predetermined digit-code corresponds to one of said first digit-codes designated by a predetermined class of service.
Claim 10
Dependent Claim
61 words
marker buffer translator means connected between the programmed means and said first receiving means for transmitting said second digit-code to the common controlling means as if the second digit-code had come from the digit registration means; whereupon the common controlling means causes the interconnection of a pair of transmission paths in accordance with said second digit-code, instead of said predetermined digit-code.
Claim 11
Dependent Claim
61 words
marker buffer translator means connected between the programmed means and said first receiving means for transmitting said second digit-code to the common controlling means as if the second digit-code had come from the digit registration means; whereupon the common controlling means causes the interconnection of a pair of transmission paths in accordance with said second digit-code, instead of said predetermined digit-code.
Claim 12
Dependent Claim
56 words
A telephone system as defined in claim 3 wherein the programmed controlling means further comprises data receiver translator means connected to the marker bid scanner for translating said request into a code recognizable by the programmed controlling means which designates the number group bypass means ready to transmit said predetermined digit-code to the programmed controlling means.
Claim 13
Dependent Claim
182 words
A telephone system as defined in claim 3 further comprising: a. a marker connected to the switching network for controlling the interconnection of a first transmission path to a second transmission path, and having a temporary digit storage means; b. a first connector means interconnecting the digit registration means and said digit storage means of the marker after receipt by the digit registration means of a predetermined prefix and number of digits; or a non-predetermined prefix and number of digits; c. a second connector means interconnecting the number group means and said digit storage means of the marker after interconnection of the digit registration means and the marker by the first connector means and after receipt by the digit registration means of said non-predetermined prefix and number of digits; the second connector means comprising said bypass means, and said bidding means adapted to request service of the programmed controlling means after receipt by the digit registration means of said predetermined prefix and number of digits; and d. the first receiving means being disposed within the marker, and comprising said digit storage means.
Claim 14
Dependent Claim
60 words
A telephone system as defined in claim 3, wherein the marker buffer translator means comprises the second receiving means, adapted to translate the first digit-codes from the number group bypass means into a code recognizable by the programmed controlling means, and to translate the second digit-code from the programmed controlling means into a code recognizable by the first receiving means.
Claim 15
Dependent Claim
76 words
A telephone switching system as defined in claim 2 further comprising: a. a second switching means, controlled from the programmed controlling means; b. a third transmission path connected to the second switching means; and c. the third transmission path being connected, through the second and first switching means, to the first and second transmission paths upon reception by said switching system of a predetermined type of request for interconnection service signal from the first transmission path.
Claim 16
Dependent Claim
143 words
A telephone switching system as defined in claim 2 further comprising: a. an interline switching means comprising a second switching means, controlled by the programmed controlling means, connected to the first switching means upon reception by the switching system of a predetermined type of request for interconnection service signal from the first transmission path; b. a third transmission path connected to the interline switching means; c. means for connecting the third transmission path, selected after reception by the programmed controlling means of a digit-code from the first transmission path, designating said third path, to said first and second paths, in the interline switching means; and d. means for disconnecting the first or second transmission path from the third transmission path in response to the reception of predetermined signals by the programmed controlling means through the interline switching means from the first transmission path.
Claim 17
Dependent Claim
65 words
A telephone switching system as defined in claim 9 wherein the switching means comprises a line link frame, a trunk link frame and junctors having tip, ring, and sleeve leads interconnecting the line link frame and the trunk link frame; the first and second transmission paths being comprised of subscribers'' lines terminated on the line link frame and trunks terminated on the trunk link frame.
Claim 18
Dependent Claim
107 words
A telephone switching system as defined in claim 9 including junctor splitting means for selectively open circuiting the tip, ring and sleeve leads of predetermined junctors in response to a predetermined signal from the first transmission path, resulting in A and B junctor end portions, said splitting means causing termination and holding of said two junctor end portions at different line circuits of the interline switching means; and further including add-on trunk means, connected between the trunk link frame and a line circuit of the interline switching means, which is connected, under control of the programmed controlling means and common control system, to the third transmission path.
Claim 19
Dependent Claim
93 words
A telephone switching system as defined in claim 11, wherein the junctor splitting means comprises means for detecting a hookswitch flash signal but being unaffected by dial pulse, intelligence transmission and ringing signals transmitted via said predetermined junctors; and in response to said detection open circuiting said junctors and terminating said end portions at individual line circuits of the interline switching means, while providing signals to said end portions such that any circuits connected to the transmission paths terminated on the two junctor portions are held as if said junctor ends were joined.
Claim 20
Dependent Claim
23 words
A telephone switching system as defined in claim 12 further including concentrator means connected between said end portions and the interline switching means.
Claim 21
Dependent Claim
132 words
A telephone switching system as defined in claim 2 further comprising: a. remote switching means for interconnecting a multiplicity of remote subscribers'' lines, controlled by the programmed controlling means; and b. trunk means, controlled by the programmed controlling means, connected between the remote switching means and the first switching means, whereby diGits received by the common controlling means from a transmission path connected to the first switching means designating completion of a transmission path through the first switching means to a remote subscriber''s line are transferred to the programmed controlling means and used thereby to interconnect a remote subscriber''s line in the remote switching means to the trunk means, and used by the common control means to interconnect a transmission path through the first switching means to the trunk means terminated thereon.
Claim 22
Dependent Claim
173 words
A telephone switching system as defined in claim 3, further including: a. remote switching means interconnecting a multiplicity of remote subscribers'' lines, controlled by the programmed controlling means; and b. trunk means connected to the programmed controlling means, and between the remote switching means and the first switching means, wherein said predetermined digit code designates a remote subscriber''s line which is to be connected to one of said transmission paths, and said translated second digit code designates an idle trunk means, said programmed controlling means comprising means for sensing an idle trunk means and seizing said trunk means, and transmitting means for transmitting the predetermined digit-code to the remote switching means and transmitting the translated second digit-code designating said trunk means to the marker, whereby one of the transmission paths is connected by the common controlling means to said trunk means in the first switching means, and the trunk is connected in the remote switching means under control of the programmed controlling means to a second transmission path in the remote switching means.
Claim 23
Dependent Claim
30 words
A telephone switching system as defined in claim 14 further comprising a data link and a signalling trunk each connected between the remote switching means and the programmed controlling means.
Claim 24
Dependent Claim
18 words
A telephone switching system as defined in claim 15 wherein said transmitting means comprises a marker buffer translator.
Claim 25
Dependent Claim
64 words
A telephone switching system as defined in claim 15 wherein the remote switching means is controlled by the programmed controlling means via a data link and signalling trunk, said trunk means is controlled by the programmed controlling means, and wherein the transmitting means comprises means for transmitting the predetermined digit code directly to the remote switching means via the data link and signalling trunk.
Claim 26
Dependent Claim
64 words
A telephone switching system as defined in claim 15 wherein the remote switching means is self-controlled, said trunk means comprises means for being seized and signalled by the programmed controlling means, and wherein the transmitting means comprises means for transmitting the predetermined digit-code directly to said trunk means so as to cause the remote switching means to connect a transmission path to said trunk.
Claim 27
Dependent Claim
34 words
A telephone switching system as defined in claim 19 including trunk scanning means connected between said trunk means and the programmed controlling means for sensing the idle or busy state of said trunk means.
Claim 28
Dependent Claim
18 words
A telephone switching system as defined in claim 20 wherein said transmitting means comprises a trunk buffer translator.
Claim 29
Independent Claim
116 words
A method of controlling the interconnection of a first transmission path with another transmission path in a common control switching system comprising: a. detecting a request for a predetermined service function over the first transmission path, which the common control switching system is not capable of performing by itself; b. connecting a programmed controlling means to the common control switching system; c. translating the request for said service function within the programmed controlling means to a second request for service function capable of being performed by the common control switching system in consort with the programmed controlling means; and d. completing the interconnection of said transmission paths in accordance with the translated request for service functIon.
Claim 30
Independent Claim
116 words
A method of controlling the interconnection of a first transmission path with another transmission path in a common control switching system comprising: a. detecting a request for a predetermined service function over the first transmission path, which the common control switching system is not capable of performing by itself; b. connecting a programmed controlling means to the common control switching system; c. translating the request for said service function within the programmed controlling means to a second request for service function capable of being performed by the common control switching system in consort with the programmed controlling means; and d. completing the interconnection of said transmission paths in accordance with the translated request for service functIon.
Claim 31
Dependent Claim
104 words
A method of controlling the interconnection of a first transmission path with another transmission path as defined in claim 8, wherein the request for a predetermined service function is in a form comprising a predetermined set of digits; the translating step (c) comprising translating the predetermined set of digits into another set of digits by the programmed controlling means; and completing step (d) comprising substituting said other set of digits for the predetermined set of digits in the common control switching system, and controlling the interconnection of said transmission paths in accordance with the other set of digits by the common control switching system.
Claim 32
Dependent Claim
50 words
A method as defined in claim 23 further including the step of storing, within the programmed controlling means after connection to the common control switching system, a set of digits which follows a predetermined prefix in said predetermined set of digits, for subsequent substitution as the other set of digits.
Claim 33
Dependent Claim
90 words
A method as defined in claim 24 including the steps of detecting the storage of the predetermined set of digits and marking said detection in a predetermined place of registration, scanning, prior to connecting of the programmed controlling means to the common control switching system, the predetermined places of registration of digits in the common control system for said marking, indicating to the programmed controlling means, prior to its connection to said system, that such detection has taken place and what place of registration contains the marking of such detection.
Claim 34
Dependent Claim
96 words
A method as defined in claim 24 wherein the predetermined set of digits contains a prefix code and a following set of digits fewer in number than that normally required to identify a called subscriber; said other set of digits identifying a called subscriber by its normal full number of digits, whereby the prefix code and said following digits are received over the first transmission path, and the substituted full set of digits is used by the common control system to identify a second transmission path to which the first transmission path is to be connected.
Claim 35
Independent Claim
147 words
A method of interconnecting a third transmission path with a first and second transmission path in a common control switching system comprising: a. opening a junctor connected between the first and second transmission paths, upon initiation by a predetermined type of request for interconnection service signal sent over the first transmission path; b. terminating the first and second transmission paths in individual first and second line circuits of an interline switching means which is controlled by a programmed controlling means; c. selecting a third transmission path, after reception of third transmission path designating digits by the programmed controlling means through the interline switching means from the first transmission path; d. terminating the third transmission path in a third line circuit of the interline switching means; and e. interconnecting the first, second and third transmission paths in the interline switching means under control of the programmed controlling means.
Claim 36
Independent Claim
147 words
A method of interconnecting a third transmission path with a first and second transmission path in a common control switching system comprising: a. opening a junctor connected between the first and second transmission paths, upon initiation by a predetermined type of request for interconnection service signal sent over the first transmission path; b. terminating the first and second transmission paths in individual first and second line circuits of an interline switching means which is controlled by a programmed controlling means; c. selecting a third transmission path, after reception of third transmission path designating digits by the programmed controlling means through the interline switching means from the first transmission path; d. terminating the third transmission path in a third line circuit of the interline switching means; and e. interconnecting the first, second and third transmission paths in the interline switching means under control of the programmed controlling means.
Claim 37
Dependent Claim
60 words
A method as defined in claim 27 including the steps of: a. connecting the first and third transmission paths in the interline switching means; and b. interconnecting the second transmission path to the first and third transmission paths in the interline switching means after reception by the programmed controlling means of a hookswitch flash signal from the first transmission path.
Claim 38
Independent Claim
229 words
A method of interconnecting a third transmission path with a first and second transmission path in a common control switching system comprising: a. extending a first subscriber''s line in the common control switching system via a line link frame, junctor and trunk link frame to a trunk extending to a second subscriber''s line; b. opening the junctor upon initiation of a predetermined signal over the junctor from the firsT transmission path, to form A and B junctor end portions, with said A portion connected to the first subscriber''s line, and said B portion connected to the second subscriber''s line; c. terminating said junctor end portions in individual line circuits of an interline switching means; d. selecting an add-on trunk terminated in a line circuit of the interline switching means, in response to the reception of dialed digits from the first subscriber''s line, designating a third subscriber''s line, by programmed controlling means for the interline switching means; e. connecting the add-on trunk via the common control switching system to the third subscriber''s line; f. connecting the line circuit in the interline switching means connected to the add-on trunk to the line circuit in the interline switching means connected to the first subscriber''s line; g. interconnecting the line circuit in the interline switching means connected to the second subscriber''s line with the line circuits connecting the first and third subscriber''s lines.
Claim 39
Independent Claim
229 words
A method of interconnecting a third transmission path with a first and second transmission path in a common control switching system comprising: a. extending a first subscriber''s line in the common control switching system via a line link frame, junctor and trunk link frame to a trunk extending to a second subscriber''s line; b. opening the junctor upon initiation of a predetermined signal over the junctor from the firsT transmission path, to form A and B junctor end portions, with said A portion connected to the first subscriber''s line, and said B portion connected to the second subscriber''s line; c. terminating said junctor end portions in individual line circuits of an interline switching means; d. selecting an add-on trunk terminated in a line circuit of the interline switching means, in response to the reception of dialed digits from the first subscriber''s line, designating a third subscriber''s line, by programmed controlling means for the interline switching means; e. connecting the add-on trunk via the common control switching system to the third subscriber''s line; f. connecting the line circuit in the interline switching means connected to the add-on trunk to the line circuit in the interline switching means connected to the first subscriber''s line; g. interconnecting the line circuit in the interline switching means connected to the second subscriber''s line with the line circuits connecting the first and third subscriber''s lines.
Claim 40
Dependent Claim
34 words
A method as defined in claim 29 including the further step of disconnecting the line circuit in the interline switching means leading to the first subscriber''s line upon reception of a disconnect signal therefrom.
Claim 41
Dependent Claim
158 words
A method as defined in claim 29 further including the steps of: a. disconnecting the line circuit in the interline switching means connected to the first subscriber''s line from the other line circuit upon reception of a hookswitch flash signal from the first subscriber''s line; b. selecting another add-on trunk terminated in a line circuit of the interline switching means in response to the reception by the programmed controlling means of dialed digits from the first subscriber''s line designating another subscriber''s line; c. connecting the other add-on trunk via the common control system to the other subscriber''s line; d. interconnecting the line circuits in the interline switching means respectively connected to the other add-on trunk and the first subscriber''s line; e. interconnecting the line circuit in the interline switching means connected to the second subscriber''s line and add-on trunk with the line circuits in the interline switching means connecting the first subscriber''s line and the other add-on trunk.
References Cited (Backward Citations)
US2951908A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |