Emergency reporting system

• US 3,881,060 A
• Filed: 06/04/1973
• Issued: 04/29/1975
• Est. Priority Date: 06/04/1973
• Status: Expired due to Term

• Current Assignee: Alfred Zarouni, Joseph Bernard Connell
• Original Assignee: Alfred Zarouni, Joseph Bernard Connell
• Inventors: Connell, Joseph Bernard, Zarouni, Alfred
• Primary Examiner(s): Claffy, Kathleen H.
• Assistant Examiner(s): Chin, Tommy P.
• Application Number:
  US05/366,643
• Time in Patent Office: 694 Days
• Field of Search: 179/5R,5P,18DA,5.5,18B,18BA,18BE,18FH
• US Class Current: 379/50
• CPC Class Codes: H04Q 3/54 in which the logic circuitry controlling the exchange is centralised

Abstract

An emergency reporting system for selectively interconnecting ones of a plurality of telephone stations, each assigned a directory number, through the telephone communication switching network to designated emergency service centers. The system is arranged so that a calling telephone station dialing a universal emergency reporting number is connected from an originating telephone central office over a dedicated trunk facility to a tandem switching office. The tandem switching office receives and translates the directory number of the calling telephone station into a routing code utilized for directing the tandem switching office to interconnect the calling telephone station with an emergency service center specifically designated to serve the calling telephone station.

Claims

1. In a communication system having a plurality of stations each identified by a unique directory number, a plurality of emergency service centers each assigned a universal number and each designated to serve predetermined ones of the stations, means for identifying the unique directory number assigned to each one of the calling stations, means responsive to universal number signals originated by calling ones of the stations for generating directory number signals corresponding to each identified directory number, means for receiving the generated directory number signals over a designated path, means for translating the received directory number signals into routing data identifying ones of the emergency service centers designated to serve the calling stations, and means responsive to the routing data for selectively interconnecting the calling stations with ones of the emergency service centers in accordance with the directory number uniquely assigned each one of the calling stations.

2. In a communication system the invention defined in claim 1 further comprising means for selectively transmitting the generated directory number signals to the identified ones of the emergency service centers.

3. In a communication system having a central controlled switching office serving a plurality of telephone stations each assigned a unique directory number and each connected by a line to the switching office, a plurality of emergency service centers connected by trunks to the switching office wherein each is assigned a universal number and each is designated to serve predetermined ones of the telephone stations, means for generating directory number signals, means for registering the generated directory number signals, means enabled by an offhook state of a calling one of the telephone stations for recording a line equipment number identifying a location within the switching office of the line connected to the calling telephone station, first translator means for translating the recorded line equipment number into the directory number assigned the calling telephone station, second translator means for translating universal number signals originated by the calling telephone station into data instructions identifyng a location of the directory number generating means within the switching office and for identifying digits of the calling telephone station directory number to be generated, control means responsive to said first translator means and said second translator means for enabling said directory number generating means to generate digits of the directory number assigned the calling telephone station, third translator means for translating tHe digits of the generated directory number signals received by the registering means into routing instructions identifying a location within the switching office of trunks connected to the one emergency service center designated to serve the calling station, and means responsive to said third translator means for connecting the line of the calling telephone station with one of the trunks connected to the designated emergency service center in accordance with the directory number assigned the calling telephone station.

4. In a communication system the invention defined in claim 3 including transmitting means for selectively transmitting ones of the calling telephone station directory number digits identified by the routing instructions over the one trunk to the designated emergency service center.

5. In a communication system the invention defined in claim 4 further including an operator position connected by operator trunks to the switching office, and means for alternatively connecting the line of the calling telephone station with one of the operator trunks when the calling telephone station cannot be interconnected with the designated emergency service center.

6. In a telephone communication switching system having a central controlled tandem switching office terminating incoming trunks from central controlled telephone central offices serving a plurality of telephone stations each assigned a unique directory number and each connected by a line to a serving one of the telephone central offices, a plurality of emergency service centers assigned universal number 911 and each connected by outgoing trunks to the tandem switching office and each designated to serve predetermined ones of the telephone stations, recording means enabled by an off-hook state of a calling one of the telephone stations for recording a line equipment number identifying a location within the serving telephone central office of the line connected to the calling telephone station, first translating means for translating the recorded line equipment number into the directory number assigned the calling telephone station, second translating means for translating universal number signals 911 originated by the calling telephone station into data instructions identifying a location of the incoming trunks within the serving telephone central office and the digits of the calling telephone station directory number to be outpulsed, first generating means responsive to said first translating means and said second translating means for outpulsing over one of the incoming trunks signals corresponding to the calling telephone station directory number, registering means connectable to the one incoming trunk for registering the outpulsed calling telephone station directory number signals, first connecting means for interconnecting the calling telephone station line with the one incoming trunk in accordance with the data instructions, third translating means for translating the registered calling telephone station directory number signals into routing instructions identifying a location within the tandem switching office of ones of the outgoing trunks connected to the one emergency service center specifically designated to serve the calling telephone station, second generating means responsive to said third translator means for selectively outpulsing signals corresponding to the registered calling telephone station directory number over one of the outgoing trunks to the designated serving emergency service center, and means responsive to said third translating means for connecting the one incoming trunk with the one outgoing trunk connected to the designated serving emergency service center in accordance with the routing instructions translated from the calling telephone station directory number.

7. In a telephone communication switching system having a central controlled tandem switching center for interconnecting ones of a pluralIty of emergency service centers each assigned universal number 911 with ones of a plurality of telephone stations each assigned a unique directory number and each served by a telephone central office coupled by designated trunks to the tandem switching center, means responsive to universal number 911 signals generated by a calling one of the telephone stations for enabling the serving telephone central office to generate and transmit number signals corresponding to the unique directory number assigned the calling telephone station to the tandem switching center over ones of the designated trunks, and means for receiving and translating the transmitted calling telephone station directory number signals into routing information utilized to direct the central control of the tandem switching center to selectively interconnect the calling telephone station with one of the emergency service centers in accordance with the unique directory number assigned the calling telephone station.

8. In a telephone communication switching system the invention defined in claim 7 including means for transmitting the identity of the calling telephone station to the interconnected emergency service center.

9. In a telephone communication switching system having a telephone central office and a plurality of emergency service centers for providing emergency assistance to designated ones of a plurality of telephone stations each assigned a unique directory number and each served by the telephone central office, a tandem switching center for interconnecting calling ones of the telephone stations dialing 911 number signals through the serving telephone central office to ones of the emergency service centers comprising, means for receiving from the serving telephone central office directory number signals corresponding to the directory numbers uniquely assigned each of the calling telephone stations, and means for translating the received calling telephone station directory number signals into routing instructions utilized to direct the tandem switching center to selectively interconnect the calling telephone stations with ones of the emergency service centers in accordance with the individual directory numbers assigned each of the calling telephone stations.