Patent US3694579A successfully refreshed from Google Patents.
US3694579A
Expired / Lapsed
US
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Emergency reporting digital communications system
Assignee: Individual
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Filing: 1971-08-06
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Granted: 1972-09-26
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Expires: 1991-08-06
Abstract
Abstract A digital communications system which can be used for emergency reporting having a transmitting unit which sends out information signals identifying the transmitting unit and identifying the type of emergency. A relay station located within the area receives and stores the signal and in response thereto electronically dials a predetermined telephone number to a data center, transmits an encoded signal identifying the station and then relays the information sent from the transmitting unit. Assistance or corrective action may then be provided by dispatch from the data center.
Inventors
- 👤 Peter H Mcmurray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:22
CPC Classifications
G; G08; G08B; G08B27/00; G08B27/006; H; H04; H04M; H04M11/00; H04M11/04
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
92 words
A digital communication system for transmitting information from a plurality of terminals to a data center having a telephone input, said system comprising: terminal means for encoding a first digital signal including a code identifying said terminal and a message, and for transmitting said first signal, and station means connected to a telephone device for receiving said first signal and in response thereto electronically coupling said telephone device to said data center telephone input, and transmitting through said coupling a second digital signal identifying the station and also transmitting said first signal.
Claim 2
Dependent Claim
92 words
A digital communication system for transmitting information from a plurality of terminals to a data center having a telephone input, said system comprising: terminal means for encoding a first digital signal including a code identifying said terminal and a message, and for transmitting said first signal, and station means connected to a telephone device for receiving said first signal and in response thereto electronically coupling said telephone device to said data center telephone input, and transmitting through said coupling a second digital signal identifying the station and also transmitting said first signal.
Claim 3
Dependent Claim
17 words
A system as in claim 1, wherein said message is an encoded representation of an emergency situation.
Claim 4
Dependent Claim
26 words
A system as in claim 1, wherein said data center comprises computer means for automatically receiving said first and second signals and dispatching a response thereto.
Claim 5
Dependent Claim
41 words
A system as in claim 2, wherein said terminal means comprises switching means for starting said terminal means, selection means for selecting the encoded emergency situation signal to be transmitted, and reset means for terminating the operation of said terminal means.
Claim 6
Dependent Claim
22 words
A system as in claim 3, wherein said terminal means once started continues to operate repeatedly transmitting said first signal until reset.
Claim 7
Dependent Claim
25 words
A system as in claim 4, wherein said switching means comprises a plurality of switching devices connected in parallel and conveniently located for easy accessibility.
Claim 8
Dependent Claim
28 words
A system as in claim 4, wherein said terminal means further comprises a power source for energizing said terminal means, and antenna means for transmitting said first signal.
Claim 9
Dependent Claim
28 words
A system as in claim 7, wherein said terminal means is mounted onto a vehicle and said power source and antenna means are part of the vehicle equipment.
Claim 10
Dependent Claim
40 words
A system as in claim 1, wherein said terminal means comprises oscillation means for generating an RF signal, modulation means for pulse width modulating said RF signal with said first digital signal, and output means for transmitting said modulated signal.
Claim 11
Dependent Claim
105 words
A system as in claim 1, wherein said terminal means comprises: switching means for starting said terminal means; starting circuit means responsive to said switching means for producing a turn-on pulse; clock geneRation means triggered by said turn-on pulse and producing a continuous number of clock pulses; selection means for selecting the message to be transmitted; control means encoding said message, providing said identifying code, and outputing said encoded signals when strobed by said clock pulses; oscillator means for producing an RF carrier signal; and transmission means for receiving said turn-on pulse, said identifying code and said encoded message and modulating these onto said carrier.
Claim 12
Dependent Claim
41 words
A system as in claim 1, wherein said station means comprises telephone coupling means which disconnect the handset from said telephone device and electronically dials a predetermined number on the telephone lines, said number being the data center telephone input number.
Claim 13
Dependent Claim
92 words
A system as in claim 11, wherein said data center provides an acknowledge signal upon being coupled to said station and said station means further comprises: timing means, and control means, said timing means being set to count a fixed time interval upon completion of the dialing of said predetermined number and in the absence of said acknowledge signal emitting a pulse upon reaching said fixed time, said control means in response to said last signal triggering said telephone coupling means to electronically dial a second predetermined number on said telephone device.
Claim 14
Dependent Claim
21 words
A system as in claim 12, wherein said station means operates to transmit said second signal simultaneously with said timer counting.
Claim 15
Dependent Claim
16 words
A system as in claim 1, wherein said electronic coupling is the standard telephone communication medium.
Claim 16
Dependent Claim
15 words
A system as in claim 1, wherein said first signal further includes a turn-on signal.
Claim 17
Dependent Claim
47 words
A system as in claim 15, wherein said station means comprises decoding means for distringuishing said turn-on signal from the other data of the first signal, means responsive to said turn-on signal for effecting said electronic coupling, encoding said station identification signal, and relaying said other data.
Claim 18
Dependent Claim
89 words
A system as in claim 16, wherein said responsive means comprises: telephone coupling means which disconnects the handset from said telephone device and electronically connects said station onto the telephone lines; data storage means for receiving said other data; encoding means for encoding said stations identifying signal, and control means for dialing a preselected telephone number, said number being the data center telephone input number, said control means triggering said encoding means to output said stations identifying signal and triggering said data storage means to output said other data.
Claim 19
Dependent Claim
17 words
A system as in claim 1, wherein said station means are selectively distributed throughout a specified area.
Claim 20
Dependent Claim
32 words
A system as in claim 16, wherein said station means further includes lockout means which prevent said station means from receiving a further first signal, after receipt of an initial first signal.
Claim 21
Dependent Claim
92 words
In combination, a computerized data center and a digital communication system, wherein said data center comprises a telephone input, and said system comprises, terminal means for encoding a first digital signal including a code identifying said terminal and a message, and for transmitting said first signal, and station means connected to a telephone device for receiving said first signal and in response thereto electronically coupling said telephone device to said data center telephone input, and transmitting through said coupling a second digital signal identifying the station and also transmitting said first signal.
Claim 22
Dependent Claim
92 words
In combination, a computerized data center and a digital communication system, wherein said data center comprises a telephone input, and said system comprises, terminal means for encoding a first digital signal including a code identifying said terminal and a message, and for transmitting said first signal, and station means connected to a telephone device for receiving said first signal and in response thereto electronically coupling said telephone device to said data center telephone input, and transmitting through said coupling a second digital signal identifying the station and also transmitting said first signal.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |