Automatic alarm code converter

• US 5,272,465 A
• Filed: 11/13/1991
• Issued: 12/21/1993
• Est. Priority Date: 11/13/1991
• Status: Expired due to Fees

• Current Assignee: MRR. Limited Liability Company
• Original Assignee: Telemessaging Devices, Incorporated
• Inventors: Meares, Douglas L. Jr.
• Primary Examiner(s): Crosland, Donnie L.
• Application Number:
  US07/791,154
• Time in Patent Office: 769 Days
• Field of Search: 340/539, 340/311.1, 340/825.44, 340/825.47, 340/531, 340/534, 340/825.36, 340/825.49, 379/142, 379/57, 379/40, 379/49, 379/51
• US Class Current: 340/539.22
• CPC Class Codes: G08B 25/08 using communication transmission lines G08B13/19658, G08B21/0286, G08B25/016 take precedence
• CPC Class Codes: G08B 5/224 Paging receivers with visible signalling details
• CPC Class Codes: H04M 11/04 with alarm systems, e.g. fire, police or burglar alarm systems

Abstract

An automatic alarm code converter wherein a plurality of alarm dialers report alarm conditions using security industry standard pulsed tone, FSK, or DTMF formats and call through the PSTN to the converter. The converter comprises a telephone line interface/decoder, a microprocessor which correlates the received alarm ID and code with addresses in a page data memory. The page data memory contains a pager number and an associated alphanumeric ASCII message The code converter further comprises a software program embodied in an EPROM which instructs on the automatic formatting of the page data into the PET/TAP protocol. The code converter communicates the page data to the paging system through a full duplex serial port either by direct RS232 connection or remotely through a dial-out modem using the PET/TAP protocol.

Claims

1. An automatic alarm system in which a plurality of remote alarm signal generators, each adapted for providing unique ID signal for identifying the alarm signal generator and at last one unique alarm signal for identifying a predetermined alarm condition and encoding the said ID and alarm signals in a first protocol are connected by a first communication system to a central site which receives the signals from the first communication system and retransmits them in a second protocol t one or more remote receiving stations via a second communication system comprising:

a decoder connected to the said first communication system for receiving signals supplied by said alarm signal generator;

memory means for storing routing information specific to each of the remote receiving stations and alphanumeric messages corresponding to each of the predetermined alarm conditions;

first means connected to the said memory means and responsive to the ID signal identifying the source of the alarm message for selecting routing information stored in the memory and responsive to the said received alarm signal for selecting an alphanumeric message corresponding thereto;

second means responsive to the first means for formatting the routing information and the alphanumeric message in the said second protocol; and

,

third means responsive to the second means for transmitting the formatted routing information and alphanumeric message over the said second communication system to the remote receiving station.

2. An automatic alarm system as set forth in claim 1 in which the alarm signals received by the decoder are converted to ASCII data for processing.

3. An automatic alarm system as set forth in claim 1 in which the second means formats the routing information and the message in PET/TAP protocol

4. An automatic alarm system as set forth in claim 1 in which the alarm signals received by the decoder are converted to ASCII data for processing and the second means formats the routing information and the message in PET/TAP protocol.