US3766320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone alarm system
Assignee: Individual
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Filing: 1971-09-16
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Granted: 1973-10-16
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Expires: 1991-09-16
Abstract
Abstract A solid state electronic system for sensing an emergency condition at a subscriber station and generating multiple coded signals impressed on telephone lines. A first code sequence which connects the subscriber station is located to a service headquarters. The second code sequence indentifies the location of the subscriber station thereby providing the service headquarters with sufficient information to respond. The codes are generated by an encoder utilizing a switching matrix controlled by logic circuitry for forming pulses compatible with telephone system data format.
Inventors
- 👤 T Homme
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:10
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
200 words
An encoding system for generating sequential binary data for transmission on communication lines, the system comprising condition sensing means responding to a predetermined condition for causing momentary open circuiting and clearing of the communication lines, delay means responsive to actuation of the sensing means for connecting the system to the communication lines after a preselected interval, control switch means enabled in response to the termination of the interval for initiating an operational cycle, first timing means responsive to actuation of the delay means for establishing system clock signals, data sequence controller means connected to the first timing means for changing state under control of said clock signals, gated means for generating binary data, storage means for receiving the binary data distributed by the gated generating means, logic means for connecting the controller means to the gated generating means for enabling sequential data distribution to the storage means in response to said changes in state of the controller means, second timing means connected to the storage means and energized by the first timing means for causing readout of the sequentially stored data, and signal coupling means connected to the storage means for transmitting the sequentially stored data to the communication lines.
Claim 2
Dependent Claim
200 words
An encoding system for generating sequential binary data for transmission on communication lines, the system comprising condition sensing means responding to a predetermined condition for causing momentary open circuiting and clearing of the communication lines, delay means responsive to actuation of the sensing means for connecting the system to the communication lines after a preselected interval, control switch means enabled in response to the termination of the interval for initiating an operational cycle, first timing means responsive to actuation of the delay means for establishing system clock signals, data sequence controller means connected to the first timing means for changing state under control of said clock signals, gated means for generating binary data, storage means for receiving the binary data distributed by the gated generating means, logic means for connecting the controller means to the gated generating means for enabling sequential data distribution to the storage means in response to said changes in state of the controller means, second timing means connected to the storage means and energized by the first timing means for causing readout of the sequentially stored data, and signal coupling means connected to the storage means for transmitting the sequentially stored data to the communication lines.
Claim 3
Dependent Claim
47 words
The system set forth in claim 1 wherein the sequence controller means includes a multi-stage counter for assuming a plurality of unique binary conditions in response to successive clock signals, each of the binary conditions permitting the transmission of another data sequence by the gated generating means.
Claim 4
Dependent Claim
29 words
The system set forth in claim 2 wherein the communicating lines constitute telephone lines and wherein the transmitted data includes the representation of a telephone number to be called.
Claim 5
Dependent Claim
199 words
An alarm system for alerting a distant service of an emergency condition existing at a subscriber station through telephone lines, the system comprising sensor means for detecting an emergency situation, disconnect means responsive to actuation of the sensor means for momentarily disconnecting and clearing the telephone lines at the subscriber station, a source of voltage, time delay means energized in delayed response to operation of the disconnect means for delivering power from the source to the system, clock means responsive to energization of the time delay means for establishing clock signals, data sequence controller means set in sequential binary states by said clock signals, gated switch means controlled by the clock signals for sequentially generating binary data representing digits of a telephone number to be dialed, storage means for receiving the binary data distributed by the gated means, logic means for connecting the sequence controller means to the gated switch means for enabling data distribution to the storage means, and timing means connected to the storage means and energized by the clock means for causing readout of the stored data under control of the clock signals at a frequency rate compatible with central exchange requirements to effect proper dialing.
Claim 6
Dependent Claim
199 words
An alarm system for alerting a distant service of an emergency condition existing at a subscriber station through telephone lines, the system comprising sensor means for detecting an emergency situation, disconnect means responsive to actuation of the sensor means for momentarily disconnecting and clearing the telephone lines at the subscriber station, a source of voltage, time delay means energized in delayed response to operation of the disconnect means for delivering power from the source to the system, clock means responsive to energization of the time delay means for establishing clock signals, data sequence controller means set in sequential binary states by said clock signals, gated switch means controlled by the clock signals for sequentially generating binary data representing digits of a telephone number to be dialed, storage means for receiving the binary data distributed by the gated means, logic means for connecting the sequence controller means to the gated switch means for enabling data distribution to the storage means, and timing means connected to the storage means and energized by the clock means for causing readout of the stored data under control of the clock signals at a frequency rate compatible with central exchange requirements to effect proper dialing.
Claim 7
Dependent Claim
81 words
The system set forth in claim 4 wherein the gated switch means includes a diode switch matrix performing a first sequence of logic functIons for causing the generation of digits representing a number to be called by the subscriber station, and means for causing repeated sequential operation of the sequence controller means for producing a second data sequence indicative of an identification code associated with the subscriber station which informs a receiving service headquarters of the location of the emergency situation.
Claim 8
Dependent Claim
26 words
The system set forth in claim 5 together with alarm means connected to the disconnect means for issuing a distinctive alert in response to an emergency.
Claim 9
Dependent Claim
42 words
The system set forth in claim 4 together with additional sensor means for detecting a second type of emergency, and logic means for causing generation of binary data representing digits of the telephone number of the service headquarters appropriate for the emergency.
Claim 10
Dependent Claim
59 words
The system of claim 4 including alarm means triggered into operation in response to said actuation of the sensor means, relay means responsive to distribution of power to the clock means for connecting the alarm means to the telephone lines and reset means for reconnecting the telephone lines at the subscriber station upon termination of readout of stored data.
Claim 11
Dependent Claim
196 words
An encoding system for generating sequential binary data for transmission on communication lines, the system comprising condition sensing means responding to a predetermined condition for causing momentary open circuiting and clearing of the communication lines, means responsive to actuation of the sensing means for connecting the system to the communication lines, a control switch means operative in response to actuation of said connection means for initiating an operational cycle, first timing means responsive to actuation of said connection means for establishing system clock signals, data sequence controller means connected to the first timing means for changing state under control of said clock signals, gated means for generating binary data, storage means for receiving the binary data distributed by the gated generating means, logic means for connecting the controller means to the gated generating means for enabling sequential data distribution to the storage means in response to said changes in state of the controller means, second timing means connected to the storage means and energized by the first timing means for causing readout of the sequentially stored data, and signal coupling means connected to the storage means for transmitting the sequentially stored data to the communication lines.
Claim 12
Dependent Claim
196 words
An encoding system for generating sequential binary data for transmission on communication lines, the system comprising condition sensing means responding to a predetermined condition for causing momentary open circuiting and clearing of the communication lines, means responsive to actuation of the sensing means for connecting the system to the communication lines, a control switch means operative in response to actuation of said connection means for initiating an operational cycle, first timing means responsive to actuation of said connection means for establishing system clock signals, data sequence controller means connected to the first timing means for changing state under control of said clock signals, gated means for generating binary data, storage means for receiving the binary data distributed by the gated generating means, logic means for connecting the controller means to the gated generating means for enabling sequential data distribution to the storage means in response to said changes in state of the controller means, second timing means connected to the storage means and energized by the first timing means for causing readout of the sequentially stored data, and signal coupling means connected to the storage means for transmitting the sequentially stored data to the communication lines.
Claim 13
Dependent Claim
62 words
The system set forth in claim 9 together with additional condition sensing means each responsive to a different predetermined condition at the subscriber station and additional logic means responsive to the condition sensing means for causing generation by the data generating means of a first sequence of binary data representing the telephone number of the service corresponding to the appropriate predetermined condition.
References Cited (Backward Citations)
US3582555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |