US3553373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manual rerouter system for telephone subscriber station with combined conference call feature
Assignee: Individual
•
Filing: 1966-12-29
•
Granted: 1971-01-05
•
Expires: 1986-12-29
Abstract
Abstract A subscriber station equipped with two connected desk sets is provided with circuitry which, in response to an incoming call on a line to one set, may hold that line, transmit over the second set of said station the dialing code of a selected reroute station, and complete a coupling link between the incoming and reroute lines for direct communication therebetween. The subscriber station may change the rerouting destination at will, and includes line-hold relay means actuated by plural momentary pushbutton switches. A coil of a relay wired to the first desk set is in series with a winding of an equal impedance transformer coupling the two sets to provide a holding circuit for the coupling.
Inventors
- 👤 Walter H Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:10
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/428; H04M3/4283
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
180 words
A manual call transfer apparatus or system for use in association with a communication network, such as a telephone exchange network, said transfer system being incorporated in an intermediate station having at least two lines connected to said communication network and comprising manual code transmitting means operatively connected to one of said lines and operable to transmit through said network to a selected remote station, normally disconnected coupling means between said lines, including inductive coupling units individual to one each of said lines, but not common to that one and a second of said liNes, and means operable in the event of an incoming signal from another station on the other of said lines for holding said signal, for conditioning said code transmitting means to produce on said one of said lines the code of said selected remote station, and for operatively connecting said lines of said intermediate station through one or the other of said respective individual coupling units, thus to complete a communication link from said incoming signal station through the intermediate station to the selected remote station.
Claim 2
Dependent Claim
180 words
A manual call transfer apparatus or system for use in association with a communication network, such as a telephone exchange network, said transfer system being incorporated in an intermediate station having at least two lines connected to said communication network and comprising manual code transmitting means operatively connected to one of said lines and operable to transmit through said network to a selected remote station, normally disconnected coupling means between said lines, including inductive coupling units individual to one each of said lines, but not common to that one and a second of said liNes, and means operable in the event of an incoming signal from another station on the other of said lines for holding said signal, for conditioning said code transmitting means to produce on said one of said lines the code of said selected remote station, and for operatively connecting said lines of said intermediate station through one or the other of said respective individual coupling units, thus to complete a communication link from said incoming signal station through the intermediate station to the selected remote station.
Claim 3
Dependent Claim
68 words
The transfer apparatus or system of claim 1, in which said manual signal transmitting means comprises at least two manually operated telephone-type units at said intermediate station, each having tip and ring terminals adapted to be connected through a telephone exchange network to said incoming signal and remote stations, said coupling unit comprising balanced transformer coils of substantially equal impedance operatively connecting said telephone units to one another.
Claim 4
Dependent Claim
31 words
The transfer apparatus or system of claim 2, and further comprising means to operatively connect to still another remote station the telephone unit normally transmitting to said first named remote station.
Claim 5
Dependent Claim
43 words
The transfer apparatus or system of claim 1, in which said coupling means includes a manually actuable switch, and a relay in series with said coupling means and completing a holding circuit through the latter and the relay upon actuation of said switch.
Claim 6
Dependent Claim
31 words
The transfer apparatus or system of claim 4, and further comprising means to operatively connect to still another remote station the telephone unit normally transmitting to said first named remote station.
Claim 7
Dependent Claim
176 words
A call transfer system for use in association with a communication network, such as a telephone exchange network, said transfer system being incorporated in an intermediate station having at least two lines connected to said communication network and comprising code transmitting means operatively connected to one of said lines and operable to transmit through said network to a selected remote station, normally disconnected coupling means between said lines, including inductive coupling units individual to one each of said lines, but not common to that one and a second of said lines, and means operable in the event a an incoming signal from another station on the other of said lines for holding said signal, for conditioning said code transmitting means to produce on said one of said lines the code of said selected remote station, and for operatively connecting said lines of said intermediate station through one or the other of said respective individual coupling units, thus to complete a communication link from said incoming signal station through the intermediate station to the selected remote station.
Claim 8
Dependent Claim
176 words
A call transfer system for use in association with a communication network, such as a telephone exchange network, said transfer system being incorporated in an intermediate station having at least two lines connected to said communication network and comprising code transmitting means operatively connected to one of said lines and operable to transmit through said network to a selected remote station, normally disconnected coupling means between said lines, including inductive coupling units individual to one each of said lines, but not common to that one and a second of said lines, and means operable in the event a an incoming signal from another station on the other of said lines for holding said signal, for conditioning said code transmitting means to produce on said one of said lines the code of said selected remote station, and for operatively connecting said lines of said intermediate station through one or the other of said respective individual coupling units, thus to complete a communication link from said incoming signal station through the intermediate station to the selected remote station.
Claim 9
Dependent Claim
26 words
The transfer system of claim 6, in which said coupling units comprise balanced transformer coils of substantially equal impedance operatively connecting said lines to one another.
References Cited (Backward Citations)
US3264411A
Cited
US3423532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |