Programmable emergency communication system including automatic dialer

• US 5,673,304 A
• Filed: 07/21/1993
• Issued: 09/30/1997
• Est. Priority Date: 09/23/1991
• Status: Expired due to Term

• Current Assignee: AC Limited (Emirate of Dubai (United Arab Emirates))
• Original Assignee: AC Limited (Emirate of Dubai (United Arab Emirates))
• Inventors: Lubin, David, McKeithan, Tracy, Connor, Larry W., Seuberling, Thomas
• Primary Examiner(s): Chan, Wing F.
• Application Number:
  US08/094,446
• Time in Patent Office: 1,532 Days
• Field of Search: 379/37-40, 379/42, 379/44, 379/45, 379/49, 379/357, 379/90, 379/110, 379/102, 379/104-107, 340/825.19
• US Class Current: 379/45
• CPC Class Codes: G08B 25/001 Alarm cancelling procedures or alarm forwarding decisions, e.g. based on absence of alarm confirmation
• CPC Class Codes: G08B 25/005 Alarm destination chosen according to a hierarchy of available destinations, e.g. if hospital does not answer send to police station
• CPC Class Codes: G08B 25/016 Personal emergency signalling and security systems emergency non-personal manually actuated alarm activators G08B25/12
• CPC Class Codes: G08B 25/08 using communication transmission lines G08B13/19658, G08B21/0286, G08B25/016 take precedence
• CPC Class Codes: H04M 11/04 with alarm systems, e.g. fire, police or burglar alarm systems

Abstract

A programmable emergency communication system for dialing an emergency number, such as a number for a central station, a 911 exchange, or third parties, permits voice-to-voice communication between a home system and the called number. The home system automatically dials one of the stored telephone numbers in response to a signal from a hand held medallion, a signal from a sip/puff switch, a signal from a paddle switch, a signal from a smoke detector, or a signal from a front panel of the home system. The home system reports emergency signals and also reports non-emergency signals, such as a low battery condition, to the central station. The home system has many options which may be programmed to suit the particular desires of the user. The home system may be programmed by any telephone which has access to the telephone line to which the home system is connected. The central station receives data from the home system and can determine the subscriber ID, the device which initiated the call, and the battery level of the device. The central station can also distinguish between emergency and non-emergency calls. A printer at the central station prints a record of all data transmitted between the central station and the home system.

Claims

1. A programmable emergency communication system for communicating between a home system and another party, comprising:

an automatic dialer programmed to dial at least one telephone number upon command;

means for transmitting a first control signal in response to an external condition;

a speakerphone coupled with a telephone line for enabling hands free reception and transmission of voice-to-voice communications when interconnected with said telephone line; and

a reprogrammable central controller, connected to said speakerphone and to said automatic dialer, for controlling the operations of said home system in accordance with a selected set of reprogrammable options;

wherein said central controller, upon receipt of said first control signal, connects said automatic dialer to a telephone line and generates said command to cause said automatic dialer to dial said at least one telephone number, and

wherein said central controller, upon receipt of an interrogation from a central station, transmits information indicating said selected set of reprogrammable options to said central station.

2. An emergency communication system as set forth in claim 1, further comprising means for supplying working power to said system and wherein said power supplying means has a back up battery to supply power to said system in case of a power failure.

3. An emergency communication system as set forth in claim 2, wherein said central controller periodically compares a power level of said battery with at least one reference level and informs a central station if said power level falls below said at least one reference level.

4. An emergency communication system as set forth in claim 3, wherein said central controller additionally compares said power level with a second reference level and if said battery falls below said one reference level, then said central controller informs said central station that said battery is weak and if said battery falls below said second reference level, then said central controller informs said central station that said battery needs replacing.

5. An emergency communication system as set forth in claim 1, wherein said transmitting means comprises a hand held medallion having an emergency switch and said external condition comprises the depression of said emergency switch.

6. An emergency communication system as set forth in claim 5, wherein said selected set of reprogrammable options comprises an option of having said central controller receive a plurality of first control signals from a respective plurality of hand held medallions with each hand held medallion transmitting a unique identifying code.

7. An emergency communication system as set forth in claim 1, wherein when an incoming call is being received over said telephone line and said central controller receives a second control signal from said transmitting means, said central controller automatically answers said incoming call and activates said speakerphone.

8. An emergency communication system as set forth in claim 1, further comprising a plurality of audio and visual indicators to aid a programmer in programming said selected set of reprogrammable options, to indicate when an emergency signal has been received by said central controller, to indicate when a battery level is below a reference level, and to indicate whether said central controller will automatically answer incoming calls.

9. An emergency communication system as set forth in claim 8, wherein if sound is detected by said central controller within five seconds but no acknowledgement has been detected, said central controller hangs up and causes said automatic dialer to dial a second telephone number.

10. An emergency communication system as set forth in claim 1, wherein said transmitting means periodically compares a level of a battery supplying power to said transmitting means with a reference level and transmits a second control signal to said central controller if said battery falls below said reference level.

11. An emergency communication system as set forth in claim 10, wherein said central controller, upon receipt of said second control signal, connects said automatic dialer to a telephone line, generates said command to cause said automatic dialer to dial said at least one telephone number, and then transmits said second control signal to a central station.

12. An emergency communication system as set forth in claim 1, wherein when said first control signal is an emergency signal, said central controller will seize said telephone line upon detection of a dial tone, cause said automatic dialer to dial one of a possible multiple telephone numbers, and then listen for an acknowledgement from a central station.

13. An emergency communication system as set forth in claim 1, wherein an option of said selected set of reprogrammable options is having incoming calls automatically answered after a variable number of rings.

14. An emergency communication system as set forth in claim 1, wherein an option of said selected set of reprogrammable options is to automatically terminate a call after a variable period of time.

15. An emergency communication system as set forth in claim 1, wherein an option of said selected set of reprogrammable options is to have said central controller detect a break in said telephone line.

16. An emergency communication system as set forth in claim 1, wherein an option of said selected set of reprogrammable options is to have said speakerphone placed in a transmit only mode, where sounds originating near said speakerphone are transmitted at a high gain over said telephone line, or in a receive only mode where said speakerphone amplifies sounds received over said telephone line at a high gain.

17. An emergency communication system as set forth in claim 1, wherein said selected set of reprogrammable options comprises an option of programming a plurality of telephone numbers to be dialed by said automatic dialer.

18. An emergency communication system as set forth in claim 1, wherein when a telephone connected to said central controller has accessed said telephone line and said first control signal is received by said central controller, said central controller sounds a warning tone on said telephone line indicating that said central controller needs to gain control of said telephone line.

19. An emergency communication system as set forth in claim 1, wherein, when said central controller is placed in a TEACH mode, said central controller receives an identifying code of said transmitting means and stores said identifying code which thereby enables said transmitting means to activate said home system to automatically dial said one telephone number.

20. A programmable emergency communication system, for communicating between a home system and another party, comprising:

an automatic dialer programmed to dial at least one telephone number upon command;

means for transmitting a first control signal in response to an external condition;

a speakerphone coupled with a telephone line for enabling hands free reception and transmission of voice-to-voice communications when interconnected with said telephone line; and

a reprogrammable central controller, connected to said speakerphone and to said automatic dialer, for controlling the operations of said home system in accordance with a selected set of reprogrammable options;

wherein said central controller, upon receipt of said first control signal, connects said automatic dialer to a telephone line and generates said command to cause said automatic dialer to dial said at least one telephone number, and

wherein if no sound is detected after said telephone number is dialed and the call is answered, said central controller transmits a handshake tone, transmits a data string, hangs up, and then causes said automatic dialer to dial a second telephone number, and

further comprising a plurality of audio and visual indicators to aid a programmer in programming said selected set of reprogrammable options, to indicate when an emergency signal has been received by said central controller, to indicate when a battery level is below a reference level, and to indicate whether said central controller will automatically answer incoming calls.

21. A programmable emergency communication system, for communicating between a home system and another party, comprising:

an automatic dialer programmed to dial at least one telephone number upon command;

means for transmitting a first control signal in response to an external condition;

a speakerphone coupled with a telephone line for enabling hands free reception and transmission of voice-to-voice communications when interconnected with said telephone line; and

a reprogrammable central controller, connected to said speakerphone and to said automatic dialer, for controlling the operations of said home system in accordance with a selected set of reprogrammable options;

wherein said central controller, upon receipt of said first control signal, connects said automatic dialer to a telephone line and generates said command to cause said automatic dialer to dial said at least one telephone number, and

wherein if no sound is detected after said telephone number is dialed and the call is answered, said central controller transmits a handshake tone, transmits a data string, hangs up, and then causes said automatic dialer to dial a second telephone number; and

wherein if said dial tone is not detected, said central controller will hang up and listen for up to two more times for a dial tone and if no dial tone is detected, said central controller then causes said automatic dialer to go ahead and dial said one telephone number; and

further comprising a plurality of audio and visual indicators to aid a programmer in programming said selected set of reprogrammable options, to indicate when an emergency signal has been received by said central controller, to indicate when a battery level is below a reference level, and to indicate whether said central controller will automatically answer incoming calls.

22. A programmable emergency communication system, for communicating between a home system and another party, comprising:

an automatic dialer programmed to dial at least one telephone number upon command;

means for transmitting a first control signal in response to an external condition;

a speakerphone coupled with a telephone line for enabling hands free reception and transmission of voice-to-voice communications when interconnected with said telephone line; and

a reprogrammable central controller, connected to said speakerphone and to said automatic dialer, for controlling the operations of said home system in accordance with a selected set of reprogrammable options;

wherein said central controller, upon receipt of said first control signal, connects said automatic dialer to a telephone line and generates said command to cause said automatic dialer to dial said at least one telephone number, and

wherein said central controller is placed into a programming mode, where said selected set of reprogrammable options may be programmed, when a telephone which has accessed said telephone line generates a certain sequence of tones, whereby said central controller may be programmed by a telephone connected to said central controller or by a remote telephone.