Patent US5812059A successfully refreshed from Google Patents.
Patent US3689702A successfully refreshed from Google Patents.
US3689702A
Expired / Lapsed
US
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Remote dialing telephone apparatus
Assignee: Com-U-Trol Corp
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Filing: 1970-07-09
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Granted: 1972-09-05
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Expires: 1990-07-09
Abstract
Abstract A call initiated from any remote and random location to an input line of a central station is made capable of seizing an output line from the central station; whereby, a caller at the remote location can thereupon call any desired location as if the call had originated from the central station. The central station operates automatically and is provided with: a plural function tone detector and decoder which regulates line seizure and control functions, a trip ring circuit and a trip ring control circuit. The originating caller is provided with a portable tone generating encoder, which is employed for line seizure, control functions, and dialing of the desired location.
Inventors
- 👤 Thomas E Mccay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:41
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/38; H04M3/382; H04M3/42; H04M3/50; H04M3/527; H04Q; H04Q3/00
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
275 words
A remote dialing telephone apparatus for use by a caller at any remote and random telephone unit location for intercoupling an incoming line and outgoing line, both at a central station, so that the caller can call automatically any desired telephone as if the call originated at the central station, comprising: portable encoder means for use at the remote location, said encoder means including plural function signaling means for generating code signals to be applied to the random telephone unit for transmission to the central station, said plural function signaling means including means for generating at least an outgoing line seize code signal and a release of both incoming and outgoing lines code signal, said apparatus further comprising at the central station: means for monitoring the availability of the outgoing line and for reporting outgoing line status back to the caller by way of the central station incoming line and the random telephone unit, means for decoding the function code signals transmitted from said encoder means, outgoing line seize means interposed between said decoding means and the outgoing line and enabled by said decoding means to seize the outgoing line, if available, upon the transmission of an outgoing line seize signal from said encoder means to said decoding means, dial-out control means for converting and coupling to the outgoing line dialing type signals applied to the incoming line from the remote location, and release of lines means interposed between said decoding means and both the incoming and outgoing lines and enabled by said decoding means to release those lines upon the transmission of a line release signal from said encoder means to said decoding means.
Claim 2
Dependent Claim
275 words
A remote dialing telephone apparatus for use by a caller at any remote and random telephone unit location for intercoupling an incoming line and outgoing line, both at a central station, so that the caller can call automatically any desired telephone as if the call originated at the central station, comprising: portable encoder means for use at the remote location, said encoder means including plural function signaling means for generating code signals to be applied to the random telephone unit for transmission to the central station, said plural function signaling means including means for generating at least an outgoing line seize code signal and a release of both incoming and outgoing lines code signal, said apparatus further comprising at the central station: means for monitoring the availability of the outgoing line and for reporting outgoing line status back to the caller by way of the central station incoming line and the random telephone unit, means for decoding the function code signals transmitted from said encoder means, outgoing line seize means interposed between said decoding means and the outgoing line and enabled by said decoding means to seize the outgoing line, if available, upon the transmission of an outgoing line seize signal from said encoder means to said decoding means, dial-out control means for converting and coupling to the outgoing line dialing type signals applied to the incoming line from the remote location, and release of lines means interposed between said decoding means and both the incoming and outgoing lines and enabled by said decoding means to release those lines upon the transmission of a line release signal from said encoder means to said decoding means.
Claim 3
Dependent Claim
73 words
Apparatus according to claim 1 in which said plural function signaling means further includes means for generating a redial enabling code signal, and redial control means, at the central station, is coupled to be responsive to the transmission of the redial enabling signal from said encoder means to said decoding means to thereupon operate with respect to the outgoing line to cause a return of outgoing line dial tone to the incoming line.
Claim 4
Dependent Claim
32 words
Apparatus according to claim 2 in which said plural function signaling means includes caller operated switching means for selecting the code signal generated by each of said means for generating code signals.
Claim 5
Dependent Claim
25 words
Apparatus according to claim 1 in which said plural function signaling means includes means for generating dialing type signals for transmission from the random unit.
Claim 6
Dependent Claim
37 words
Apparatus according to claim 4 in which said dialing type signal generating means comprises a dialing mechanism and a dial code signal generator coupled between the dialing mechanism and an output from said plural function signaling means.
Claim 7
Dependent Claim
37 words
Apparatus according to claim 5 in which said means for generating code signals in combination comprises a tone generator constructed to generate distinctive code signals incorporating at least one tone for each type of distinctive code signal.
Claim 8
Dependent Claim
33 words
ApparatUs according to claim 1 in which said means for generating code signals in combination comprises a plural tone generator constructed such that the tone content of a code signal defines that signal.
Claim 9
Dependent Claim
24 words
Apparatus according to claim 7 in which said encoder means includes a transducer for applying the tone code signals to the random telephone unit.
Claim 10
Dependent Claim
27 words
Apparatus according to claim 8 in which said transducer is an audio transducer constructed to transmit through space the tone code signals to the random telephone unit.
Claim 11
Dependent Claim
25 words
Apparatus according to claim 1 in which said encoder means and said decoding means respectively contain means to send and respond to A.C. code signals.
Claim 12
Dependent Claim
77 words
Apparatus according to claim 10 in which said A.C. code means in said encoder means and decoding means are constructed to encode and decode, respectively, a plurality of tone codes, each code having a different tone content, said outgoing line seize means is responsive to a first tone code content, said dial out control means is responsive to a second tone code content, and said release of lines means is responsive to a third tone code content.
Claim 13
Dependent Claim
58 words
Apparatus according to claim 11 in which a redial control means is provided at the central station and is constructed to be responsive to said first tone code content and to operate to cause a return of outgoing line dial tone to the incoming line without release of the incoming line with respect to the random telephone unit.
Claim 14
Dependent Claim
19 words
Apparatus according to claim 1 which is constructed and arranged such that the outgoing line is a WATS line.
Claim 15
Dependent Claim
97 words
Apparatus according to claim 1 in which said outgoing line status monitoring and reporting means comprises trip ring control means coupled to said outgoing line and automatically responsive to outgoing line available and busy status for generating a corresponding signal, and trip ring-in means coupled to be responsive to the signal of said trip ring control means and also coupled to the incoming line, said trip ring-in means being constructed to stop the ringin from the remote location if the outgoing line is available, but to allow continuation of the ring-in when the outgoing line is busy.
Claim 16
Dependent Claim
82 words
Apparatus according to claim 14 in which said trip ring control means comprises rectifier means coupled to the outgoing line, impedance means coupled to said rectifier means and distinctly responsive to voltages representative of the said two different outgoing line status conditions, first switching means actuated in response to the developed voltages of said impedance means, and circuit path means coupling the outgoing line by way of said first switching means to said trip ring-in means when the outgoing line is available.
Claim 17
Dependent Claim
70 words
Apparatus according to claim 15 in which said said trip ring-in means comprises terminal means for applying the incoming ringing through said first switching means and said circuit path means, second switching means coupled to said circuit path means, responsive to the incoming ringing, and connected across the incoming line, and load means coupled to said second switching means and responsive to the incoming ringing for thereby stopping the ringing.
Claim 18
Dependent Claim
64 words
Apparatus according to claim 1 in which polarizing means are coupled to each the incoming and outgoing lines, transformer means intercouples said polarizing means, circuit paths are provided between the incoming and outgoing lines and are arranged to be completed depending upon the code signals from said encoder means, and automatic switching means, responsive to said means for decoding, completes said selective circuit paths.
Claim 19
Dependent Claim
254 words
Apparatus according to claim 1 in which said outgoing line seize means, dial-out control means, and monitoring and reporting means comprise circuitry which arbitrarily can be subdivided into input and output circuits, said input circuit comprising: terminals for the incoming line, a first switch and a series connected load coupled across said incoming line terminals for trip ring-in purposes, a second switch responsive to the line seize code signal, a third switch, a latching switch responsive to said second switch for completing an actuating circuit path to said third switch, and first rectifying means coupled to said third switch, said first rectifying means and said latching switch being coupled to a pair of terminals leading to said output circuit; said output circuit comprising: terminals for the outgoing line, a fourth switch, second rectifying means coupled between said outgoing line terminals and said fourth switch, said fourth switch being responsive to the line code signal and such code signal being applied to said fourth switch by way of an electronic switch which is actuated by way of said third switch, an inductance coupled to said fourth switch and arranged to receive outgoing line dial tone, a transformer, having its primary winding coupled to said pair of input circuit terminals, and a fifth switch coupled in series between said inductance and the secondary winding of said transformer, said electronic switch also being connected to be responsive to the dialing type signals to thereupon operate the fourth switch to outpulse the outgoing line with dialing type signals.
Claim 20
Dependent Claim
63 words
Apparatus according to claim 18 in which said release of lines means comprises: a sixth switch responsive to the release of line code signal and coupled to said latching switch for unlatching same to place the incoming line ''''on-hook,'''' the unlatching of said latching switch causing deactuation of said third switch to thereupon operate upon said fourth switch to place the outgoing line''''on-hook.''''
References Cited (Backward Citations)
US3443035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |