US3760110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic recording system
Assignee: AT&T Inc
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Filing: 1972-02-24
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Granted: 1973-09-18
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Expires: 1992-02-24
Abstract
Abstract Traffic monitoring equipment includes a concentration stage of switches connected to the apparatus, such as trunks, to be monitored and an expansion stage of switches connected to the recording equipment for scoring or registering trunk usage. A counter sequentially enables the concentration switches. However a memory is provided, and circuitry stores in that memory the identity of the destination of each call on the trunks being monitored. Control circuitry sets the expansion switches in accordance with the call destination of the call on the specific trunk being monitored. Information received from the marker of the associated central office writes into memory the destination codes for each call at an address defined by the specific trunk employed on that call. The trunks are scanned in groups of six with an initial assumption that calls on all will be to the same destination. Accordingly, a match is first attempted between the actual call destination from the memory and the assumed call destination priorly stored in a register from the memory address for a prior trunk. On failure of this match trunk status flipflops allow the proper call destinations to be used for each trunk.
Inventors
- 👤 A Joel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:02
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/22; H04M3/36
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
85 words
In a communication system having a plurality of trunks to be monitored for traffic usage, means for detecting traffic usage on said trunks, traffic recording means, a memory, means for writing in said memory indicia representing the destination of calls on said trunks, and means including said memory for simultaneously connecting one of said trunks to said detecting means and for causing said detecting means to operate said traffic recording means in accordance with the call destination identification in said memory for said one trunk.
Claim 2
Dependent Claim
85 words
In a communication system having a plurality of trunks to be monitored for traffic usage, means for detecting traffic usage on said trunks, traffic recording means, a memory, means for writing in said memory indicia representing the destination of calls on said trunks, and means including said memory for simultaneously connecting one of said trunks to said detecting means and for causing said detecting means to operate said traffic recording means in accordance with the call destination identification in said memory for said one trunk.
Claim 3
Dependent Claim
77 words
In a communication system, the invention of claim 1 wherein said last mentioned means includes first switch means for connecting said trunks to said detecting means, second switch means for connecting said detecting means to said traffic recording means, means for operating said first switch means in accordance with the identity of a trunk, and means for operating said second switch means in accordance with the call destination indicia in said memory associated with said trunk identity.
Claim 4
Dependent Claim
43 words
In a communication system, the invention of claim 2 further comprising means for controlling said writing means to write in said memory at an address defined by said trunk identity said call destination indicia for the call presently being served by said trunk.
Claim 5
Dependent Claim
109 words
In a communication system, the invention of claim 2 wherein said first switch means includes first crosspoint means connected to a plurality of trunks and said second switch means includes second crosspoint means connected to a plurality of inputs to said recording means, and wherein said detecting means includes a plurality of detector circuits, the combination further comprising first means connected to said detector circuits for selecting a particular one of said plurality of trunks connected to said first crosspoint means and second means connected to said first means for selecting a particular one of said plurality of inputs to said recording means connected to said second crosspoint means.
Claim 6
Dependent Claim
129 words
In a communication system, the invention of claim 4 wherein said means for operating said second switch means comprises register means for storing call destination indicia from said memory, the combination further comprising means responsive to a first busy one of said plurality of trunks connected to a particular crosspoint means for reading said call destination indicia for said first busy one trunk from said memory into said register, means responsive to busy others of said plurality of trunks connected to said particular crosspoint means for comparing the call destination information in said memory for said other busy trunks with said call destination information then in said register, and means responsive to failure of a match for other busy ones of said plurality of trunks for clearing said register.
Claim 7
Dependent Claim
124 words
In a communication system having a plurality of circuits to be monitored for traffic usage, means for detecting traffic usage on said circuits, first switch means for connecting said circuits to the input of said detecting means, second switch means for connecting the output of said detecting means to traffic usage recording means, and means for operating said first switching means in accordance with the identity of a circuit and for operating said second switch means in accordance with the call destination of the call being served by said circuit, said last mentioned means including memory means and means for storing in said memory means at an address defined by said circuit identity call destination information for the call being served by said circuit.
Claim 8
Dependent Claim
124 words
In a communication system having a plurality of circuits to be monitored for traffic usage, means for detecting traffic usage on said circuits, first switch means for connecting said circuits to the input of said detecting means, second switch means for connecting the output of said detecting means to traffic usage recording means, and means for operating said first switching means in accordance with the identity of a circuit and for operating said second switch means in accordance with the call destination of the call being served by said circuit, said last mentioned means including memory means and means for storing in said memory means at an address defined by said circuit identity call destination information for the call being served by said circuit.
Claim 9
Dependent Claim
129 words
In a communication system, the combination in accordance with claim 6 wherein said traffic usage recording means have a plurality of input leads, wherein said first switch means includes means for connecting to a plurality of said circuits simultaneously, wherein said second switch means includes means for connecting to a plurality of said input leads simultaneously, and wherein said detecting means includes a plurality of individual detectors, one for each of said plurality of said circuits, said combination further comprising first logic circuitry for gating a signal on only one of said plurality of circuits through said detecting means at a time, and second logic circuitry connected to said first logic circuitry for gating said signal through to only one of said plurality of input leads at a time.
Claim 10
Dependent Claim
109 words
In a communication system having a plurality of trunks to be monitored for traffic usage, means for detecting traffic usage on said trunks, switch means for connecting said trunks to said detecting means, means for controlling said switch means in accordance with specific trunk identifications, and means responsive to said detecting means for storing traffic usage information for said trunks dependent on the call destination of calls on said trunks, said last mentioned means including a memory, means for stoRing call destination indicia in said memory at addresses defined by trunk identifications, and means for addressing said memory in accordance with said specific trunk identifications controlling said switch means.
Claim 11
Dependent Claim
109 words
In a communication system having a plurality of trunks to be monitored for traffic usage, means for detecting traffic usage on said trunks, switch means for connecting said trunks to said detecting means, means for controlling said switch means in accordance with specific trunk identifications, and means responsive to said detecting means for storing traffic usage information for said trunks dependent on the call destination of calls on said trunks, said last mentioned means including a memory, means for stoRing call destination indicia in said memory at addresses defined by trunk identifications, and means for addressing said memory in accordance with said specific trunk identifications controlling said switch means.
Claim 12
Dependent Claim
107 words
In a telephone system, traffic recording means, first crossbar switch means connected to individual trunks to be monitored, second crossbar switch means for selectively applying signals to said traffic recording means, detector means interposed between said first and second crossbar switch means, and control means for operating said first and second crossbar switch means, said control means comprising means for controlling said first crossbar switch means to connect the trunks being monitored to said detector means, and means for controlling said second crossbar switch means to connect said detector means to said traffic recording means in accordance with the destination to which the monitored trunks are connected.
Claim 13
Dependent Claim
107 words
In a telephone system, traffic recording means, first crossbar switch means connected to individual trunks to be monitored, second crossbar switch means for selectively applying signals to said traffic recording means, detector means interposed between said first and second crossbar switch means, and control means for operating said first and second crossbar switch means, said control means comprising means for controlling said first crossbar switch means to connect the trunks being monitored to said detector means, and means for controlling said second crossbar switch means to connect said detector means to said traffic recording means in accordance with the destination to which the monitored trunks are connected.
Claim 14
Dependent Claim
31 words
In a telephone system, the combination in accordance with claim 9 wherein said control means comprises memory means for storing indicia representing said destination associated with each particular trunk being monitored.
Claim 15
Dependent Claim
62 words
In a telephone system, the combination in accordance with claim 10 further comprising marker means for determining the identity of a trunk and the identity of the destination to which that trunk is to be connected and memory input means connected to said market means for writing in said memory means said indicia of the destination identity associated with said trunk identity.
Claim 16
Dependent Claim
154 words
In a telephone system, traffic recording means, first switch means including a plurality of crosspoint means each for simultaneously connecting to a plurality of trunks to be monitored, second switch means including a plurality of crosspoint means each for simultaneously connecting to a plurality of input leads to said traffic recording means, detector means connected to said first switch means for detecting the status of said trunks, trunk address means for causing said first switch means to close specific crosspoint means therein, register means for storing identifications of destinations of connections on said trunk means, means responsive to said register means for causing said second switch means to close specific crosspoint means therein, and means connected between said detector means and said second switch means for specifying the particular one of said trunks connected to a first switch crosspoint means and the particular one of said traffic recording input leads to be connected together.
Claim 17
Dependent Claim
154 words
In a telephone system, traffic recording means, first switch means including a plurality of crosspoint means each for simultaneously connecting to a plurality of trunks to be monitored, second switch means including a plurality of crosspoint means each for simultaneously connecting to a plurality of input leads to said traffic recording means, detector means connected to said first switch means for detecting the status of said trunks, trunk address means for causing said first switch means to close specific crosspoint means therein, register means for storing identifications of destinations of connections on said trunk means, means responsive to said register means for causing said second switch means to close specific crosspoint means therein, and means connected between said detector means and said second switch means for specifying the particular one of said trunks connected to a first switch crosspoint means and the particular one of said traffic recording input leads to be connected together.
Claim 18
Dependent Claim
81 words
In a telephone system, the combination in accordance with claim 12 wherein said trunk address means includes at least one counter circuit, a plurality of status memory elements, the number of status memory elements being equal to the number of trunks connected to each said first switch crosspoint means, means including said detector means for energizing said status memory elements in accordance with the status of said trunks, and means responsive to said status memory elements for advancing said counter circuit.
Claim 19
Dependent Claim
26 words
In a telephone system, the combination in accordance with claim 13 wherein said first and said second switch means each includes a plurality of crossbar switches.
Claim 20
Dependent Claim
72 words
In a telephone system, traffic recording means, means for connecting to a plurality of trunks simultaneously, means connecting said trunk connecting means to said recording means, status memory elements equal in number to the number of said plurality of trunks, means for detecting the busy/idle status of said trunks and for operating said status memory elements in response thereto, and means for controlling said connecting means responsive to said status memory elements.
Claim 21
Dependent Claim
72 words
In a telephone system, traffic recording means, means for connecting to a plurality of trunks simultaneously, means connecting said trunk connecting means to said recording means, status memory elements equal in number to the number of said plurality of trunks, means for detecting the busy/idle status of said trunks and for operating said status memory elements in response thereto, and means for controlling said connecting means responsive to said status memory elements.
Claim 22
Dependent Claim
55 words
In a telephone system the combination of claim 15 wherein said means for operating said status elements includes means for operating each status memory element on tHe idle condition of a trunk and further comprising means for operating each status element on the operating of said recording means for a busy one of said trunks.
Claim 23
Dependent Claim
132 words
In a communication system having a plurality of circuits to be monitored for recording traffic usage, a memory, a register, means for storing in said memory destination information pertinent to the call present on each of said circuits, a plurality of circuit status memory control elements equal to a predetermined number of said circuits, means for transferring from said memory to said register the destination information for one of said circuits, means for comparing said transferred destination information in said register with the destination information in said memory for the remaining predetermined number of said circuits which are busy, and means for operating said status memory control elements for those of said predetermined number of circuits which are idle and for those which are busy but whose busy state has been recorded.
Claim 24
Dependent Claim
132 words
In a communication system having a plurality of circuits to be monitored for recording traffic usage, a memory, a register, means for storing in said memory destination information pertinent to the call present on each of said circuits, a plurality of circuit status memory control elements equal to a predetermined number of said circuits, means for transferring from said memory to said register the destination information for one of said circuits, means for comparing said transferred destination information in said register with the destination information in said memory for the remaining predetermined number of said circuits which are busy, and means for operating said status memory control elements for those of said predetermined number of circuits which are idle and for those which are busy but whose busy state has been recorded.
Claim 25
Dependent Claim
43 words
In a communication system, the combination in accordance with claim 17 further comprising means for examining the state of each of said status memory control elements and for clearing said register on the examination of the last of said status memory control elements.
Claim 26
Dependent Claim
43 words
In a communication system, the combination in accordance with claim 18 further comprising means for resetting said status memory control elements on the examining of the last of said status memory control elements if all said status memory control elements have been operated.
Claim 27
Dependent Claim
146 words
In a telephone system having a plurality of trunks to be monitored for recording their traffic usage by recording equipment, means for detecting traffic usage on said trunks, switch means for connecting a plurality of said trunks to said detecting means, trunk status memory elements equal in number to said plurality of trunks, means for setting said status elements for those of said plurality of trunks which are idle, means for examining each of said status elements in succession, means for successively connecting said detecting means to recording equipment for each trunk of said plurality which is busy, means for setting each said status element for those of said plurality of trunks which are busy but whose traffic usage has been recorded, and means for resetting said trunk status elements and for advancing said switch means when all of said trunk status elements have been set.
Claim 28
Dependent Claim
146 words
In a telephone system having a plurality of trunks to be monitored for recording their traffic usage by recording equipment, means for detecting traffic usage on said trunks, switch means for connecting a plurality of said trunks to said detecting means, trunk status memory elements equal in number to said plurality of trunks, means for setting said status elements for those of said plurality of trunks which are idle, means for examining each of said status elements in succession, means for successively connecting said detecting means to recording equipment for each trunk of said plurality which is busy, means for setting each said status element for those of said plurality of trunks which are busy but whose traffic usage has been recorded, and means for resetting said trunk status elements and for advancing said switch means when all of said trunk status elements have been set.
Claim 29
Dependent Claim
113 words
In a telephone system, traffic recording means having a plurality of inputs, first switch means connected to individual trunks to be monitored, second switch means selectively applying signals to said traffic recording means, detector means interposed between said first and said second switch means, and control means including a memory for storing specific indicia associated with each trunk being monitored, means for operating said first switch means to connect specific trunks to said detector means, and means for operating said second switch means in accordance with said specific indicia stored in said memory for said specific trunks to connect said detector means to particular ones of said inputs of said traffic recording means.
Claim 30
Dependent Claim
113 words
In a telephone system, traffic recording means having a plurality of inputs, first switch means connected to individual trunks to be monitored, second switch means selectively applying signals to said traffic recording means, detector means interposed between said first and said second switch means, and control means including a memory for storing specific indicia associated with each trunk being monitored, means for operating said first switch means to connect specific trunks to said detector means, and means for operating said second switch means in accordance with said specific indicia stored in said memory for said specific trunks to connect said detector means to particular ones of said inputs of said traffic recording means.
Claim 31
Dependent Claim
53 words
In a telephone system, the combination in accordance with claim 21 wherein said means for operating said first switch means includes counter means for connecting said trunks sequentially to said detector means, said second switch means selectively connecting said detector means to said traffic recording means inputs in accordance with said stored indicia.
Claim 32
Dependent Claim
29 words
In a telephone system, the combination in accordance with claim 22 further comprising means for storing said indicia in said memory at memory locations assigned to said specific trunks.
Claim 33
Dependent Claim
88 words
In a telephone system having a plurality of circuits to be monitored for traffic usage, the combination comprising a memory means for storing iN said memory at memory locations assigned to each circuit specific indicia for each circuit, means for detecting traffic usage on said circuits, traffic recording means, and control means including said memory for simultaneously connecting one of said circuits to said detecting means and for causing said detecting means to operate said traffic recording means in accordance with said specific indicia for said one circuit.
Claim 34
Dependent Claim
88 words
In a telephone system having a plurality of circuits to be monitored for traffic usage, the combination comprising a memory means for storing iN said memory at memory locations assigned to each circuit specific indicia for each circuit, means for detecting traffic usage on said circuits, traffic recording means, and control means including said memory for simultaneously connecting one of said circuits to said detecting means and for causing said detecting means to operate said traffic recording means in accordance with said specific indicia for said one circuit.
Claim 35
Dependent Claim
55 words
In a telephone system, the combination in accordance with claim 24 wherein said control means includes switch means for connecting said circuit to said detecting means and further comprising means for supplying to said storing means for each busy circuit indicia representing the call destination for the communication then present on said each busy circuit.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |