Patent US3783193A successfully refreshed from Google Patents.
US3783193A
Expired / Lapsed
US
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Apparatus for activating a remotely located device in response to the ringing of a called telephone subscriber station
Assignee: PANTEK CORP
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Filing: 1971-01-28
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Granted: 1974-01-01
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Expires: 1991-01-28
Abstract
Abstract Apparatus for the activation of a remotely located device under the control of telephone subscriber lines and stations. The apparatus of the present invention is located in the vicinity of a called telephone subscriber station and is operated to activate a remotely located device through two series of ringing signals initiated by a calling telephone subscriber station and produced by the called telephone subcriber station. The first series of ringing signals activates a timer which resets a counter that controls the operation of the remotely located device providing the counter is not on a preselected code position. The timer disables the counter from receiving counting pulses during the first series of ringing signals. In addition thereto, the timer enables the counter to receive counting pulses during a period P2. Should the second series of ringing signals be produced by the called subscriber station within the period P2 and be a preselected number of ringing signals, the counter will then activate the remotely located device.
Inventors
- 👤 M Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:18
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/007
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
296 words
Apparatus for use in a remote control system employing telephone subscriber lines and equipment and having a calling telephone subscriber station to initiate ringing signals to be detected at a called telephone subscriber station, said apparatus comprising: a. means for activating a remotely located device; b. a counter operative for controlling the operation of said means; c. circuit means located in the vicinity of said called telephone subscriber station to detect ringing signals at said called telephone subscriber station and producing therefrom pulses, said circuit means being connected to said counter for applying pulses to said counter for operating said counter; and d. a timer circuit activated by said circuit means and operative for controlling the predetermined time interval in which said circuit means applies pulses to said counter; e. said circuit means transmitting a series of pulses to said counter in response to detecting ringing signals at said called subscriber telephone station during said predetermined time interval, the number of pulses transmitted by said circuit means being commensurate with the number of ringing signals detected by said circuit means, said counter operates said means in response to said circuit means applying a predetermined number of pulses to said counter during said predetermined time interval, f. said circuit means detecting a first series of ringing signals and a second series of a predetermined number of ringing signals, said circuit means in response to said first series of ringing signAls activates said timer circuit, whereby said timer circuit enables said counter to receive the second series of ringing signals after the completion of the first series of ringing signals to operate said means in response to said circuit means transmitting to said counter during said predetermined time interval a second series of a predetermined number of pulses.
Claim 2
Dependent Claim
296 words
Apparatus for use in a remote control system employing telephone subscriber lines and equipment and having a calling telephone subscriber station to initiate ringing signals to be detected at a called telephone subscriber station, said apparatus comprising: a. means for activating a remotely located device; b. a counter operative for controlling the operation of said means; c. circuit means located in the vicinity of said called telephone subscriber station to detect ringing signals at said called telephone subscriber station and producing therefrom pulses, said circuit means being connected to said counter for applying pulses to said counter for operating said counter; and d. a timer circuit activated by said circuit means and operative for controlling the predetermined time interval in which said circuit means applies pulses to said counter; e. said circuit means transmitting a series of pulses to said counter in response to detecting ringing signals at said called subscriber telephone station during said predetermined time interval, the number of pulses transmitted by said circuit means being commensurate with the number of ringing signals detected by said circuit means, said counter operates said means in response to said circuit means applying a predetermined number of pulses to said counter during said predetermined time interval, f. said circuit means detecting a first series of ringing signals and a second series of a predetermined number of ringing signals, said circuit means in response to said first series of ringing signAls activates said timer circuit, whereby said timer circuit enables said counter to receive the second series of ringing signals after the completion of the first series of ringing signals to operate said means in response to said circuit means transmitting to said counter during said predetermined time interval a second series of a predetermined number of pulses.
Claim 3
Dependent Claim
38 words
Apparatus as claimed in claim 1 wherein said predetermined time interval commences at a fixed time interval after the initiation of said first series of ringing pulses and terminates at the expiration of a preselected time interval thereafter.
Claim 4
Dependent Claim
28 words
Apparatus as claimed in claim 2 wherein said timer circuit resets said counter during said first series of ringing signals when said counter is not operating said means.
Claim 5
Dependent Claim
32 words
Apparatus as claimed in claim 3 wherein said timer circuit inhibits said circuit means from operating said counter to operate said means at a time other than during said predetermined time interval.
Claim 6
Dependent Claim
31 words
Apparatus as claimed in claim 4 and including protecting means responsive to said circuit means and said timer circuit and connected to said counter for reseting said counter after power failure.
Claim 7
Dependent Claim
19 words
Apparatus as claimed in claim 5 wherein said protecting means resets said counter when said apparatus is turned on.
Claim 8
Dependent Claim
34 words
Apparatus as claimed in claim 1 and comprising indicator means connected to said timer circuit and operative in response to said circuit means detecting signals of preselected magnitude produced at said called subscriber station.
Claim 9
Dependent Claim
81 words
Apparatus as claimed in claim 1 wherein said subscriber station produces a third series of ringing signals and a fourth series of ringing signals, said circuit means in response to said third series of ringing signals activates said timer circuit, whereby said timer circuit enables said counter to change its state to operate said means for deactivating said remotely located device in response to said circuit means transmitting to said counter during a predetermined time interval a fourth series of pulses.
References Cited (Backward Citations)
US2665375A
Cited
US3198888A
Cited
US3267379A
Cited
US3351714A
Cited
US3360777A
Cited
US3414881A
Cited
US3443032A
Cited
US3513443A
Cited
US3532822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |