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US6064722A
Expired / Lapsed
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Data request router for use with emergency public safety answering point systems
Assignee: TeleCommunication Systems Inc
•
Filing: 1997-01-14
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Granted: 2000-05-16
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Expires: 2017-01-14
Abstract
Abstract A data request router for use with a public safety answering point (PSAP) system. The router receives a data request from the PSAP system and transmits the data request to a primary database and an alternate information sources. The router is capable of determining whether the primary database is able to provide the data requested by the PSAP system. If the router determines that the primary database is unable to provide the data requested, it receives a reply from the alternate information source and transmits the data contained in the reply from the alternate information source to the PSAP system. In one aspect, the router includes a switch designed to directly connect the PSAP system to the primary database when the router becomes inoperative either due to a failure or loss of power. In another aspect, the router transmits the data request received from the PSAP system to the primary database and determines that the primary database is unable to provide the data requested when a reply from the primary database does not contain the data requested. In another aspect of the invention, the router determines that the primary database is unable to provide the data requested by the PSAP system by analyzing the data request received from the PSAP system.
Inventors
- 👤 William E. Clise
- 👤 Michael Crowson
- 👤 Sunit Lothia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:26
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M2242/00; H04M2242/04; H04M2242/30; H04Q; H04Q3/00; H04Q3/72
Claims Analysis
Total Claims: 70
Claim 1
Independent Claim
136 words
A data request router for use with a public safety answering point (PSAP) system adapted to supplement the PSAP without substantial modification to provide location information for an emergency telephone call, said data request router comprising: at least one communications interface adapted to communicate with the PSAP system a primary database system and an alternate information source; and a processor connected to the communications interface operable to intercept a data request from the PSAP system intended to be transmitted to the primary database and to transmit the data request to the primary database system and the alternate information source, the processor operable to transmit to the PSAP system the data received from the alternate information source when the processor determines that the primary database system is unable to provide the data requested by the PSAP system.
Claim 2
Dependent Claim
136 words
A data request router for use with a public safety answering point (PSAP) system adapted to supplement the PSAP without substantial modification to provide location information for an emergency telephone call, said data request router comprising: at least one communications interface adapted to communicate with the PSAP system a primary database system and an alternate information source; and a processor connected to the communications interface operable to intercept a data request from the PSAP system intended to be transmitted to the primary database and to transmit the data request to the primary database system and the alternate information source, the processor operable to transmit to the PSAP system the data received from the alternate information source when the processor determines that the primary database system is unable to provide the data requested by the PSAP system.
Claim 3
Dependent Claim
35 words
The data request router according to claim 1, further comprising a switch connected to the communications interface, the switch operable to directly connect the PSAP and the primary database when the processor is rendered inoperative.
Claim 4
Dependent Claim
25 words
The data request router according to claim 2 wherein the switch allows the PSAP data request to be transmitted to the primary database without interception.
Claim 5
Dependent Claim
41 words
The data request router according to claim 1 wherein the processor determines that the primary database system is unable to provide the data requested by the PSAP system when a reply from the primary database system does not contain the data.
Claim 6
Dependent Claim
39 words
The data request router according to claim 1 wherein the data request is transmitted to the alternate information source after the processor determines that the primary database system is unable to provide the data requested by the PSAP system.
Claim 7
Dependent Claim
38 words
The data request router according to claim 1 wherein the processor determines whether the primary database system is able to provide the data requested by the PSAP system by analyzing the data request received from the PSAP system.
Claim 8
Dependent Claim
43 words
The data request router according to claim 1 wherein the processor determines whether the primary database system is able to provide the data requested by the PSAP system by analyzing the calling telephone number contained in the data request from the PSAP system.
Claim 9
Dependent Claim
29 words
The data request router according to claim 1 wherein the communications interface is adapted to intercept a data request for an emergency call from a non-primary local exchange carrier.
Claim 10
Dependent Claim
38 words
The data request router according to claim 8 wherein the processor determines that the primary database system is unable to provide the data requested by the PSAP system when a data request is intercepted through the communications interface.
Claim 11
Dependent Claim
25 words
The data request router according to claim 1, further comprising a data link connecting the alternate information source to at least one mobile switching center.
Claim 12
Dependent Claim
40 words
The data request router according to claim 10 wherein the at least one mobile switching center transmits through the data link location information associated with a telephone making an emergency telephone call through the at least one mobile switching center.
Claim 13
Dependent Claim
46 words
The data request router according to claim 1 wherein the communications interface comprises: a first I/O interface in communication with the PSAP system; a second I/O interface in communication with the primary database system; and a third I/O interface in communication with the alternate information source.
Claim 14
Dependent Claim
139 words
A data request router for use with a public safety answering point (PSAP) system adapted to supplement the PSAP without substantial modification to provide location information for an emergency telephone call, said data request router comprising: at least one communications interface adapted to communicate with the PSAP system, a primary database system, and an alternate information source; and a processor connected to the communications interface operable to receive a data request from the PSAP system intended to be transmitted to the primary database and to determine whether the primary database system contains the information requested by the data request, and to transmit the obtained data to the PSAP system, the processor operable to obtain data for the PSAP system from the alternate information source when the processor determines that the primary database system does not contain the data requested.
Claim 15
Dependent Claim
139 words
A data request router for use with a public safety answering point (PSAP) system adapted to supplement the PSAP without substantial modification to provide location information for an emergency telephone call, said data request router comprising: at least one communications interface adapted to communicate with the PSAP system, a primary database system, and an alternate information source; and a processor connected to the communications interface operable to receive a data request from the PSAP system intended to be transmitted to the primary database and to determine whether the primary database system contains the information requested by the data request, and to transmit the obtained data to the PSAP system, the processor operable to obtain data for the PSAP system from the alternate information source when the processor determines that the primary database system does not contain the data requested.
Claim 16
Dependent Claim
37 words
The data request router according to claim 13, further comprising a switch connected to the communications interface, the switch operable to directly connect the PSAP system to the primary database system when the processor is rendered inoperative.
Claim 17
Dependent Claim
25 words
The data request router according to claim 14 wherein the switch allows the PSAP data request to be transmitted to the primary database without interception.
Claim 18
Dependent Claim
54 words
The data request router according to claim 13 wherein the processor transmits the data request to the primary database system and determines that the primary database system is unable to provide the data requested when a reply from the primary database system responsive to the transmitted data request does not contain the data requested.
Claim 19
Dependent Claim
38 words
The data request router according to claim 13 wherein the processor determines whether the primary database system is able to provide the data requested by the PSAP system by analyzing the data request received from the PSAP system.
Claim 20
Dependent Claim
46 words
The data request router according to claim 13 wherein the communications interface comprises: a first I/O interface in communication with the PSAP system; a second I/O interface in communication with the primary database system; and a third I/O interface in communication with the alternate information source.
Claim 21
Dependent Claim
25 words
The data request router according to claim 13, further comprising a data link connecting the alternate information source to at least one mobile switching center.
Claim 22
Dependent Claim
30 words
The data request router according to claim 19 wherein the alternate information source includes a server computer connected to the at least one mobile switching center through the data link.
Claim 23
Dependent Claim
159 words
A data request router for use with a public safety answering point (PSAP) system adapted to supplement the PSAP without substantial modification to provide location information for an emergency telephone call, said data request router comprising: at least one communications interface adapted to communicate with the PSAP system, a primary database system, and an alternate information source; and a processor connected to the communications interface operable to receive a data request from the PSAP system intended to be transmitted to the primary database and to determine whether the primary database system is able to provide the information requested by the data request, and to transmit the obtained data to the PSAP system, the processor operable to obtain data for the PSAP system from the alternate information source when the processor determines that the primary database system is unable to provide the data requested; and a data link connecting the alternate information source to at least one mobile switching center.
Claim 24
Dependent Claim
159 words
A data request router for use with a public safety answering point (PSAP) system adapted to supplement the PSAP without substantial modification to provide location information for an emergency telephone call, said data request router comprising: at least one communications interface adapted to communicate with the PSAP system, a primary database system, and an alternate information source; and a processor connected to the communications interface operable to receive a data request from the PSAP system intended to be transmitted to the primary database and to determine whether the primary database system is able to provide the information requested by the data request, and to transmit the obtained data to the PSAP system, the processor operable to obtain data for the PSAP system from the alternate information source when the processor determines that the primary database system is unable to provide the data requested; and a data link connecting the alternate information source to at least one mobile switching center.
Claim 25
Dependent Claim
30 words
The data request router according to claim 21 wherein the alternate information source includes a server computer connected to the at least one mobile switching center through the data link.
Claim 26
Dependent Claim
163 words
A data request router for use with a public safety answering point (PSAP) system adapted to supplement the PSAP without substantial modification to provide location information for an emergency telephone call, said data request router comprising: at least one communications interface adapted to communicate with the PSAP system, a primary database system, and an alternate information source; and a processor connected to the communications interface operable to intercept a data request from the PSAP system intended to be transmitted to the primary database and to determine whether the primary database system contains the information requested by the data request, and to transmit the data request to the alternate information source to obtain location information and to receive a reply from the alternate information source in response to the transmitted data request and to transmit to the PSAP system the data contained in the reply when the processor determines that the primary database system does not contain the data requested by the PSAP system.
Claim 27
Dependent Claim
163 words
A data request router for use with a public safety answering point (PSAP) system adapted to supplement the PSAP without substantial modification to provide location information for an emergency telephone call, said data request router comprising: at least one communications interface adapted to communicate with the PSAP system, a primary database system, and an alternate information source; and a processor connected to the communications interface operable to intercept a data request from the PSAP system intended to be transmitted to the primary database and to determine whether the primary database system contains the information requested by the data request, and to transmit the data request to the alternate information source to obtain location information and to receive a reply from the alternate information source in response to the transmitted data request and to transmit to the PSAP system the data contained in the reply when the processor determines that the primary database system does not contain the data requested by the PSAP system.
Claim 28
Dependent Claim
46 words
The data request router according to claim 23 wherein the communications interface comprises: a first I/O interface in communication with the PSAP system; a second I/O interface in communication with the primary database system; and a third I/O interface in communication with the alternate information source.
Claim 29
Dependent Claim
37 words
The data request router according to claim 23, further comprising a switch connected to the communications interface, the switch operable to directly connect the PSAP system to the primary database system when the processor is rendered inoperative.
Claim 30
Dependent Claim
27 words
The data request router according to claim 23 wherein the communications interface is adapted to intercept data requests for emergency calls from a non-primary local exchange carrier.
Claim 31
Dependent Claim
38 words
The data request router according to claim 26 wherein the processor determines that the primary database system is unable to provide the data requested by the PSAP system when a data request is intercepted through the communications interface.
Claim 32
Dependent Claim
39 words
The data request router according to claim 23 wherein the data request is transmitted to the alternate information source before the processor determines that the primary database system is unable to provide the data requested by the PSAP system.
Claim 33
Dependent Claim
180 words
A data request router for use with a public safety answering point (PSAP) system adapted to supplement the PSAP without substantial modification to provide location information for an emergency telephone call, said data request router comprising: a first I/O interface in communication with the PSAP system; a second I/O interface in communication with the primary database system; a third I/O interface in communication with the alternate information source; and a processor connected to the communications interface operable to intercept a data request from the PSAP system intended to be transmitted to the primary database and to determine whether the primary database system is able to provide the information requested by the data request, and to transmit the data request to the alternate information source to obtain location information and to receive a reply from the alternate information source in response to the transmitted data reguest and to transmit to the PSAP system the data contained in the reply at least when the processor determines that the primary database system is unable to provide the data requested by the PSAP system.
Claim 34
Dependent Claim
180 words
A data request router for use with a public safety answering point (PSAP) system adapted to supplement the PSAP without substantial modification to provide location information for an emergency telephone call, said data request router comprising: a first I/O interface in communication with the PSAP system; a second I/O interface in communication with the primary database system; a third I/O interface in communication with the alternate information source; and a processor connected to the communications interface operable to intercept a data request from the PSAP system intended to be transmitted to the primary database and to determine whether the primary database system is able to provide the information requested by the data request, and to transmit the data request to the alternate information source to obtain location information and to receive a reply from the alternate information source in response to the transmitted data reguest and to transmit to the PSAP system the data contained in the reply at least when the processor determines that the primary database system is unable to provide the data requested by the PSAP system.
Claim 35
Dependent Claim
37 words
The data request router according to claim 29, further comprising a switch connected to the communications interfaces, the switch operable to directly connect the PSAP system to the primary database system when the processor is rendered inoperative.
Claim 36
Dependent Claim
27 words
The data request router according to claim 29 wherein the communications interfaces is adapted to intercept data requests for emergency calls from a nonprimary local exchange carrier.
Claim 37
Dependent Claim
38 words
The data request router according to claim 31 wherein the processor determines that the primary database system is unable to provide the data requested by the PSAP system when a data request is intercepted through the communications interface.
Claim 38
Dependent Claim
39 words
The data request router according to claim 29 wherein the data request is transmitted to the alternate information source before the processor determines that the primary database system is unable to provide the data requested by the PSAP system.
Claim 39
Dependent Claim
25 words
The data request router according to claim 30 wherein the switch allows the PSAP data request to be transmitted to the primary database without interception.
Claim 40
Dependent Claim
182 words
An emergency call service system for upgrading the functionality of a PSAP system and a primary database system to provide supplemental location information for an emergency telephone call, the service system comprising: a public safety answering point (PSAP) system connected to the primary database system; an alternate information source not originally accessible by the PSAP; and a data request router connected to the PSAP system, primary database system and alternate information source, the data request router including: a communications interface adapted to communicate with the PSAP system the primary database system and the alternate information source; and a processor connected to the communications interface operable to intercept a data request from the PSAP system intended to be transmitted to the primary database and to determine whether the primary database system is able to provide the information requested by the data request, and to transmit the obtained data to the PSAP system, the processor operable to obtain data for the PSAP system from the alternate information source when the processor determines that the primary database system is unable to provide the data requested.
Claim 41
Dependent Claim
182 words
An emergency call service system for upgrading the functionality of a PSAP system and a primary database system to provide supplemental location information for an emergency telephone call, the service system comprising: a public safety answering point (PSAP) system connected to the primary database system; an alternate information source not originally accessible by the PSAP; and a data request router connected to the PSAP system, primary database system and alternate information source, the data request router including: a communications interface adapted to communicate with the PSAP system the primary database system and the alternate information source; and a processor connected to the communications interface operable to intercept a data request from the PSAP system intended to be transmitted to the primary database and to determine whether the primary database system is able to provide the information requested by the data request, and to transmit the obtained data to the PSAP system, the processor operable to obtain data for the PSAP system from the alternate information source when the processor determines that the primary database system is unable to provide the data requested.
Claim 42
Dependent Claim
20 words
The service system of claim 35 wherein the PSAP system processes emergency wireless telephone calls and emergency wired telephone calls.
Claim 43
Dependent Claim
19 words
The service system of claim 35 wherein the alternate information source contains location information corresponding to wireless telephone calls.
Claim 44
Independent Claim
143 words
A method of using data request router to supplement a standard public safety answering point (PSAP) to provide location information for an emergency telephone call without modifying the PSAP itself, the method comprising the steps of: intercepting a data request from the PSAP intended to be transmitted to a primary database; determining whether the primary database contains the information requested by the data request; transmitting the data request to an alternate information source external of the PSAP other than the primary database; receiving a reply message from the alternate information source responsive to the data request transmitted thereto; determining whether the reply message contains data responsive to the data request by the PSAP; and transmitting the data contained in the reply message to the PSAP if it is determined that the reply message contains the data responsive to the request by the PSAP.
Claim 45
Independent Claim
143 words
A method of using data request router to supplement a standard public safety answering point (PSAP) to provide location information for an emergency telephone call without modifying the PSAP itself, the method comprising the steps of: intercepting a data request from the PSAP intended to be transmitted to a primary database; determining whether the primary database contains the information requested by the data request; transmitting the data request to an alternate information source external of the PSAP other than the primary database; receiving a reply message from the alternate information source responsive to the data request transmitted thereto; determining whether the reply message contains data responsive to the data request by the PSAP; and transmitting the data contained in the reply message to the PSAP if it is determined that the reply message contains the data responsive to the request by the PSAP.
Claim 46
Independent Claim
160 words
A method of using a data request router to supplement a public safety answering point (PSAP) system to provide location information for an emergency telephone call, the method comprising the steps of: receiving a data request message from the PSAP system intended to be transmitted to a primary database system; transmitting the data request message to an alternate information source other than the primary database system; receiving a reply message from the alternate information source responsive to the transmitted data request message; determining whether the primary database system contains the data requested by the PSAP system; determining from the reply message whether the alternate information source contains the data requested by the PSAP system; and transmitting the data from the alternate information source to the PSAP system if it is determined that the primary database system does not contain the data requested by the PSAP system and that the alternate information source contains the data requested by the PSAP system.
Claim 47
Independent Claim
160 words
A method of using a data request router to supplement a public safety answering point (PSAP) system to provide location information for an emergency telephone call, the method comprising the steps of: receiving a data request message from the PSAP system intended to be transmitted to a primary database system; transmitting the data request message to an alternate information source other than the primary database system; receiving a reply message from the alternate information source responsive to the transmitted data request message; determining whether the primary database system contains the data requested by the PSAP system; determining from the reply message whether the alternate information source contains the data requested by the PSAP system; and transmitting the data from the alternate information source to the PSAP system if it is determined that the primary database system does not contain the data requested by the PSAP system and that the alternate information source contains the data requested by the PSAP system.
Claim 48
Dependent Claim
69 words
The method according to claim 39 wherein the step of determining whether a primary database system contains the data comprises the steps of: transmitting the data request message to the primary database system; receiving a reply message from the primary database system; and determining that the primary database system does not contain the data when the reply message from the primary database system indicates that no record is found.
Claim 49
Dependent Claim
43 words
The method according to claim 39 wherein the step of transmitting the data request message to an alternate database is performed prior to the step of determining whether the primary database system is unable to provide the data requested by the PSAP system.
Claim 50
Dependent Claim
41 words
The method according to claim 39, further comprising the step of connecting a communication link connected to the PSAP system to a communication link connected to the primary database system when a processor performing the steps of determining is rendered inoperative.
Claim 51
Dependent Claim
33 words
The method according to claim 39 wherein the step of determining whether a primary database system is able to provide the data comprises analyzing the data request message received from the PSAP system.
Claim 52
Dependent Claim
50 words
The method according to claim 39, further comprising the step of transmitting to the PSAP system a reply message indicating that no data is found if it is determined that both the primary database system and alternate information source are unable to provide the data requested by the PSAP system.
Claim 53
Independent Claim
122 words
A method of using a data request router to supplement a public safety answering point (PSAP) system to provide location information for an emergency telephone call, the method comprising the steps of: intercepting a data request from the PSAP system intended to be transmitted to a primary database system; transmitting the data request to an alternate information source; receiving a reply from the alternate information source responsive to the transmitted data request; determining whether the primary database system contains the data requested by the PSAP system; and transmitting the data contained in the reply from the alternate information source to the PSAP system if it is determined that the primary database system does not contain the data requested by the PSAP system.
Claim 54
Independent Claim
122 words
A method of using a data request router to supplement a public safety answering point (PSAP) system to provide location information for an emergency telephone call, the method comprising the steps of: intercepting a data request from the PSAP system intended to be transmitted to a primary database system; transmitting the data request to an alternate information source; receiving a reply from the alternate information source responsive to the transmitted data request; determining whether the primary database system contains the data requested by the PSAP system; and transmitting the data contained in the reply from the alternate information source to the PSAP system if it is determined that the primary database system does not contain the data requested by the PSAP system.
Claim 55
Dependent Claim
61 words
The method according to claim 45 wherein the step of determining comprises the steps of: transmitting the data request to the primary database system; receiving a reply from the primary database system; and determining that the primary database system is able to provide the data when the reply from the primary database system contains the data requested by the PSAP system.
Claim 56
Dependent Claim
59 words
The method according to claim 45 wherein the step of determining comprises the steps of: transmitting the data request to the primary database system; receiving a reply from the primary database system; and determining that the primary database system is unable to provide the data when the reply from the primary database system indicates that no record is found.
Claim 57
Dependent Claim
41 words
The method according to claim 45 wherein the step of transmitting the data request to an alternate information source is performed after it is determined that the primary database system is unable to provide the data requested by the PSAP system.
Claim 58
Dependent Claim
39 words
The method according to claim 45, further comprising the step of connecting a communication link of the PSAP system to a communication link of the primary database system when a processor performing the step of determining is rendered inoperative.
Claim 59
Dependent Claim
21 words
The method according to claim 45 wherein the step of determining comprises analyzing the data request received from the PSAP system.
Claim 60
Dependent Claim
28 words
The method according to claim 45 wherein the step of determining comprises the step of analyzing the calling number contained in the data request from the PSAP system.
Claim 61
Dependent Claim
67 words
The method according to claim 45, further comprising the steps of: determining whether the alternate information source is able to provide the data requested by the PSAP system; and transmitting to the PSAP system a reply indicating that no data is found if it is determined that both the primary database system and alternate information source are unable to provide the data requested by the PSAP system.
Claim 62
Independent Claim
116 words
A method of using a data request router to supplement a public safety answering point (PSAP) system to provide location information for an emergency telephone call, the method comprising the steps of: intercepting a data request message from the PSAP system intended to be transmitted to a primary database system; determining whether the primary database system contains the data requested by the PSAP system; obtaining the data requested by the PSAP system from an alternate information source other than the primary database system if it is determined that the primary database system does not contain the data requested by the PSAP system; and transmitting the obtained data from the alternate information source to the PSAP system.
Claim 63
Independent Claim
116 words
A method of using a data request router to supplement a public safety answering point (PSAP) system to provide location information for an emergency telephone call, the method comprising the steps of: intercepting a data request message from the PSAP system intended to be transmitted to a primary database system; determining whether the primary database system contains the data requested by the PSAP system; obtaining the data requested by the PSAP system from an alternate information source other than the primary database system if it is determined that the primary database system does not contain the data requested by the PSAP system; and transmitting the obtained data from the alternate information source to the PSAP system.
Claim 64
Dependent Claim
73 words
The method according to claim 53 wherein the step of determining whether a primary database system is able to provide the data comprises the steps of: transmitting the data request message to the primary database system; receiving a reply message from the primary database system; and determining that the primary database system is unable to provide the data when the reply message from the primary database system indicates that no record is found.
Claim 65
Dependent Claim
43 words
The method according to claim 53 wherein the step of transmitting the data request message to an alternate database is performed prior to the step of determining whether the primary database system is able to provide the data requested by the PSAP system.
Claim 66
Dependent Claim
39 words
The method according to claim 53, further comprising the step of connecting a communication link of the PSAP system to a communication link of the primary database system when a processor performing the steps of determining is rendered inoperative.
Claim 67
Independent Claim
186 words
A method of using a data request router supplement a public safety answering point (PSAP) system to provide location information for an emergency telephone call, the method comprising the steps of: intercepting, a data request from the PSAP system intended to be transmitted to a primary database system; transmitting the received data request to the primary database system; transmitting the data request to an alternate information source; receiving a reply from the primary database system; receiving a reply from the alternate information source; determining whether the received reply from the primary database system contains the data requested by the PSAP system; transmitting to the PSAP system the data contained in the reply from the primary database system when the reply from the primary database system contains the data requested by the PSAP system; determining whether the received reply from the alternate information source contains the data requested by the PSAP system; and transmitting to the PSAP system the data contained in the reply from the alternate information source when the reply from the primary database system does not contain the data requested by the PSAP system.
Claim 68
Independent Claim
186 words
A method of using a data request router supplement a public safety answering point (PSAP) system to provide location information for an emergency telephone call, the method comprising the steps of: intercepting, a data request from the PSAP system intended to be transmitted to a primary database system; transmitting the received data request to the primary database system; transmitting the data request to an alternate information source; receiving a reply from the primary database system; receiving a reply from the alternate information source; determining whether the received reply from the primary database system contains the data requested by the PSAP system; transmitting to the PSAP system the data contained in the reply from the primary database system when the reply from the primary database system contains the data requested by the PSAP system; determining whether the received reply from the alternate information source contains the data requested by the PSAP system; and transmitting to the PSAP system the data contained in the reply from the alternate information source when the reply from the primary database system does not contain the data requested by the PSAP system.
Claim 69
Independent Claim
103 words
A method of using a data request router to supplement a standard public safety answering point (PSAP) to provide location information for an emergency telephone call without modifying the PSAP itself, the method comprising the steps of: intercepting a data request message from the PSAP intended to be transmitted to a primary database; determining whether the primary database contains information responsive to the data request; and transmitting the data request message to an alternate information source external of the PSAP other than the primary database if it is determined that the primary database system does not contain the data requested the PSAP system.
Claim 70
Independent Claim
103 words
A method of using a data request router to supplement a standard public safety answering point (PSAP) to provide location information for an emergency telephone call without modifying the PSAP itself, the method comprising the steps of: intercepting a data request message from the PSAP intended to be transmitted to a primary database; determining whether the primary database contains information responsive to the data request; and transmitting the data request message to an alternate information source external of the PSAP other than the primary database if it is determined that the primary database system does not contain the data requested the PSAP system.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-05-16 | 2003-11-15 | 2004-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-05-16 | 2007-11-15 | 2008-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-05-16 | 2011-11-15 | 2012-05-16 | $7700.00 | Window Closed / Lapsed |