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 Title: |
US6249223:
Modular alarm system
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Christensen, Dean Everett; San Rafael, CA 94901
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| Assignee: |
None
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| Published / Filed: |
2001-06-19
/ 2000-01-31
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| Application Number: |
US2000000495074
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| IPC Code: |
Advanced:
G08B 25/06;
Core:
G08B 25/01;
IPC-7:
G08B 21/00;
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| ECLA Code: |
G08B25/06;
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| U.S. Class: |
Current:
340/540;
340/538;
Original:
340/540;
340/538;
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| Field of Search: |
340/540,539,527,538,524,541,310.02,310.03,310.08
307/031,40
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| Priority Number: |
| 2000-01-31 |
US2000000495074 |
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| Abstract: |
A modular system for providing security to an office or residence is provided that includes a plurality of modular components that each connect to a common AC electrical power supply line and communicate digitally with each other by supplying and decoding a digitally encoded message via a carrier signal that is modulated over the AC line. At a minimum, a control panel and at least one sensor are required. A signaling device provides indication of an emergency situation. Easy installation is provided by installing each of the modular components and by powering the control panel lastly which, upon power-up, polls every possible digital address to determine which modular components are connected. Optional telephone connections to a central monitoring site are also provided as well as remote control of the system over the telephone line by the monitoring site or by the user.
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| Attorney, Agent or Firm: |
Rinne, Jr., Risro A. ;
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| Primary / Asst. Examiners: |
Wu, Daniel J.; Tweel, Jr., John
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| Family: |
None
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First Claim:
Show all 13 claims |
What is claimed is:
1. A modular alarm system apparatus, comprising:
- (a) a control panel, said control panel electrically connected to a source of alternating electrical power and having a unique address;
- (b) a first sensor electrically connected to said source of electrical power, said first sensor having a unique address that is different than that of said control panel; and
- (c) means for providing bi-directional communication over said source of alternating electrical power between said first sensor and said control panel;
- whereby upon installation of said system, said control panel outputs every possible address other than its own on power-up including said unique address of said first sensor to determine that said first sensor is electrically connected to said source of alternating electrical power, and wherein said control panel monitors said source of alternating electrical power for communication indicating a change in status by said first sensor.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
Show drawing descriptions
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| Description: |
Show description
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| Forward References: |
Show 3 U.S. patent(s) that reference this one
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