# US 7,609,165 B2 · Method and apparatus for magnetically activated radio or infrared identification system

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- Number: US 7,609,165 B2
- Document ID: US7609165B2
- Status: Granted
- Kind: B2
- Application number: 11/588,762
- Filed: 2006-10-27
- Published: 2008-05-01
- Granted: 2009-10-27
- Earliest claimed: 2006-10-27
- Assignees: Tyco Safety Products Canada Ltd.
- Inventors: Raman Kumar Sharma
- Web page: https://patentgrep.com/patent/US7609165B2

## CPC

- G08B 13/2417: {having a radio frequency identification chip}
- G08B 25/008: {Alarm setting and unsetting, i.e. arming or disarming of the security system}
- H01H 36/0006: {Permanent magnet actuating reed switches (H01H35/147 takes precedence)}
- H03K 17/9517: {using galvanomagnetic devices}
- G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00)
- H03K: PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M)

## Abstract

A disarming system for an RFID tag or an IRID tag having a magnetically operated sensor or switch includes a permanent magnet, wherein the permanent magnet is configured to activate the magnetically operated switch or sensor in the RFID tag or IRID tag when the RFID tag or IRID tag is brought into proximity of the permanent magnet. The disarming station also includes a receiving station configured to disarm a security system when the magnetically operated switch or sensor in the RFID tag or IRID tag is activated.

## Claims

### Claim 1

A disarming system for an RFID tag or an IRID tag having one or more of a magnetically operated sensor and a magnetically operated switch, said disarming system comprising:
a permanent magnet configured to activate at least one of the magnetically operated switch and the magnetically operated sensor in the RFID tag or IRID tag when the RFID tag or IRID tag is brought into proximity of said permanent magnet; and
a receiving station configured to disarm a security system when the at least one of the magnetically operated switch and the magnetically operated sensor in the RFID tag or IRID tag is activated.

### Claim 2 (depends on 1)

A disarming system in accordance with claim 1 having a plurality of passive disarming stations installed in a building along with the receiving station, and wherein the receiving station is configured to disarm the security system when the at least one of the magnetically operated switch and the magnetically operated sensor is activated by one or more of said disarming stations.

### Claim 3 (depends on 1)

A disarming system in accordance with claim 1, wherein the receiving station is a wireless receiving station.

### Claim 4

A security system comprising:
a security controller configured to signal an alarm in response to a detection of an anomalous condition;
at least one security sensor configured to indicate to said security controller that the anomalous condition has been detected;
at least one RFID tag or IRID tag, said RFID tag or IRID tag comprising a transmitter, a memory containing data and operatively coupled to said transmitter to transmit said data, and a power source operatively coupled to the transmitter and memory through at least one of a magnetically operated switch and magnetically operated sensor to provide power to the transmitter and memory when the magnetically operated switch is in a sufficiently strong magnet field;
at least one disarming station comprising a permanent magnet configured to operate the at least one of the magnetically operated switch and the magnetically operated sensor when the RFID tag or IRID tag is brought nearby; and
a receiving station configured to receive the transmitted data from the RFID tag or IRID tag to disarm the security controller.

### Claim 5 (depends on 4)

The security system of claim 4 wherein the at least one of the magnetically operated switch and magnetically operated sensor comprises a reed switch and the RFID tag or IRID tag further comprises an antenna operatively coupled to the transmitter to radiate a transmitted signal.

### Claim 6 (depends on 4)

The security system of claim 4 wherein the at least one of the magnetically operated switch and magnetically operated sensor comprises a Hall effect sensor.

### Claim 7 (depends on 4)

The security system of claim 4 wherein the transmitter comprises an infrared LED.

### Claim 8 (depends on 4)

The security system of claim 4 wherein said transmitted data comprises a unique serial number of the RFID tag or IRID tag.

### Claim 9 (depends on 4)

The security system of claim 4 wherein said transmitted data comprises a disarm code.

### Claim 10 (depends on 4)

The security system of claim 4 wherein said disarming station is unpowered.

### Claim 11 (depends on 4)

The security system of claim 4 wherein the RFID tag or IRID tag comprises an IRID tag with an infrared LED transmitter configured to transmit an authorized identification signal, and the disarming station further comprises an infrared optical receiver and a radio transmitter configured to disarm the security controller when the authorized identification signal is received by the infrared optical receiver.

### Claim 12 (depends on 4)

The security system of claim 4 wherein said disarming station further comprises an indicator to indicate at least one of an armed and a disarmed status of the security system.

### Claim 13 (depends on 4)

The security system of claim 4 wherein the magnet is retrofitted into an existing disarming system.

### Claim 14 (depends on 4)

The security system of claim 4 wherein the disarming station further comprises a non-magnetic cover covering said permanent magnet.

### Claim 15

A method for operating a security system having a security controller configured to signal an alarm in response to a detection of the anomalous condition, and at least one security sensor configured to indicate to said security controller that an anomalous condition has been detected, said method comprising:
bringing an RFID tag or IRID tag into proximity of a disarming station comprising a permanent magnet having a magnetic field;
operating at least one of a magnetically-operated switch and a magnetically-operated sensor in the RFID tag or IRID tag using the magnetic field of the permanent magnet to thereby temporarily awaken the RFID tag or IRID tag into a full power mode;
transmitting a signal from the temporarily awakened RFID tag or IRID tag to a receiver to disarm the security controller; and
removing the RFID tag or IRID tag from the proximity of the disarming station to thereby place the RFID tag or IRID tag into at least one of a lower power dormant state and a no power dormant state.

### Claim 16 (depends on 15)

The method of claim 15 wherein said operating operation comprises switching a reed switch.

### Claim 17 (depends on 15)

The method of claim 15 wherein said operating operation comprises operating a Hall effect sensor.

### Claim 18 (depends on 15)

The method of claim 15 wherein said transmitting operation comprises transmitting a radio signal to a receiver in the security controller.

### Claim 19 (depends on 15)

The method of claim 15 wherein said transmitting operation comprises transmitting an infrared signal from an infrared LED to an optical infrared receiver in the disarming station and further transmitting a radio signal from the disarming station to the security controller.

### Claim 20 (depends on 15)

The method of claim 15 wherein said transmitting a signal from the temporarily awakened RFID tag or IRID tag comprises transmitting a unique serial number of the RFID tag or IRID tag.

### Claim 21 (depends on 15)

The method of claim 15 wherein said transmitting a signal from the temporarily awakened RFID tag or IRID tag comprises transmitting a disarm code.

### Claim 22 (depends on 15)

The method of claim 15 wherein said disarming station is unpowered.

### Claim 23 (depends on 15)

The method of claim 15 further comprising indicating at least one of an armed and a disarmed status of the security system at the disarming station.

### Claim 24 (depends on 15)

The method of claim 15 further comprising retrofitting the permanent magnet into an existing disarming system.