| Patent Number |
Title Of Patent |
Date Issued |
| D461047 |
Key fob |
August 6, 2002 |
|
| D357638 |
Keypad for a security system |
April 25, 1995 |
|
| 6895082 |
Alarm system using local data channel |
May 17, 2005 |
| An alarm system has an alarm unit in combination with a line seize module. The alarm unit includes a transmitter/receiver, a control panel function, a key pad, an input/output port connected to a telephone line and an auto dialer for normally communicating with a remote monitoring statio |
| 6838988 |
Smoke detector with performance reporting |
January 4, 2005 |
| A cost effective system for testing smoke detectors and determining and communicating the operating characteristics thereof, advantageously uses existing circuitry components in a secondary communication function. With this arrangement, a low powered RF reporting signal is transmitted fr |
| 6756905 |
Photoelectric smoke detector and chamber therefor |
June 29, 2004 |
| A smoke detection chamber for use in a photoelectric smoke detector. The smoke detection chamber comprises a side wall with a double row of generally rectangular vanes arranged to provide a labyrinth extending generally around the entire side wall for ingress and egress of smoke part |
| 6380850 |
Dual mode panel |
April 30, 2002 |
| A dual mode alarm control panel includes a sensing arrangement for determining conditions of the environment in which the panel is installed. The results of the environmental assessment are used to determine an operating mode of the panel. In a first mode the panel is fully functiona |
| 6366211 |
Remote recovery arrangement for alarm system |
April 2, 2002 |
| A security alarm system cooperates with a remote monitoring station to improve the reliability of the alarm system. The alarm system includes a control panel which during communications with the remote monitoring station, receives information used for the operation of the system and |
| 6362747 |
Security alarm keypad with message alert |
March 26, 2002 |
| A security alarm system is adapted to retrieve e-mail status information and provide an alert signal for the user of the system that e-mail has been received and is awaiting retrieval. Preferably, the keypad of the security system includes a visual indicator which is activated when e-mai |
| 6351234 |
Combination microwave passive infrared motion detector with anti-masking evaluation |
February 26, 2002 |
| A motion detector of an alarm system has a microwave sensor and a passive infrared sensor, and includes signal processing logic for initiating an anti-masking evaluation upon detection of certain conditions. The detector then samples the sensor signals and compares the signals to a serie |
| 6252504 |
Alarm system using local data channel |
June 26, 2001 |
| The alarm system has an alarm unit for ready access at a point of entryway which communicates with a line seize module located in a secure location. The alarm unit has a transmitter receiver, a control panel function, a key pad, and an input/output port for connection to telephone wiring |
| 6226357 |
Security system alarm panel |
May 1, 2001 |
| The invention provides an alarm panel connected to a telephone line. The alarm panel comprises a microprocessor connected to a circuit which operates in two states: passive and active. In the passive state, the alarm panel monitors the line for a ring signal and tests the integrity of |
| 6161958 |
Self diagnostic heat detector |
December 19, 2000 |
| The present invention relates to an electronic heat detector having a self diagnostic mode. The heat detector is able to test the operation of a thermistor utilized for the temperature indicator of the heat detector. The thermistor is tested by applying electrical energy to the thermisto |
| 5923250 |
Size discriminating dual element PIR detector |
July 13, 1999 |
| A dual element PIR detector for a security system uses a series of beams in selected areas to limit the amount of radiation received from small domestic pets. A series of alternating beams define dead zones and the beams and dead zones provide size discrimination where a small domestic |
| 5920270 |
Security system remote control |
July 6, 1999 |
| The present invention relates to a remote control unit for cooperating with a security system for convenient arming and disarming thereof and/or status thereof. A low cost of remote preferably cooperates with other components of the system to provide feedback to the user as to the state |
| 5917410 |
Glass break sensor |
June 29, 1999 |
| The glass break detector uses sampling techniques to a low band and a high band portion of a signal from a transient event to assess whether the bands are random. In addition, an assessment of the envelope shape of the signal is made to confirm the signal is consistent with a rapid rise |
| 5902139 |
Terminal block for circuit board |
May 11, 1999 |
| The terminal block of the present invention provides both a simple high strength mechanical connection with a circuit board as well as a good electrical connection. The terminal block has a snapfit with a side edge of the circuit board due to a cooperation between pins of the terminal |
| 5898368 |
Test indicator control circuit for security alarm device |
April 27, 1999 |
| An intrusion detector for monitoring a space has a sensor for generating detection signals in response to detections of events occurring in the space and an indicator for receiving the detection signals and for generating detection indications in response thereto. A controllable swit |
| 5831528 |
Detection of glass breakage |
November 3, 1998 |
| A glass shattering detector and method for detecting breaking glass take advantage of the characteristics of high frequency components of a glass shattering signal which can be statistically recognized. In contrast to most non-glass breaking transient events, the higher frequency compone |
| 5719557 |
Photoelectric smoke detector |
February 17, 1998 |
| The present invention provides for a smoke detection chamber and a photoelectric smoke detector containing the smoke detection chamber. The smoke detection chamber has side walls with openings provided therein for ingress and egress of smoke particles, a top and a bottom. A photoemitting |
| 5675320 |
Glass break detector |
October 7, 1997 |
| The glass break detector uses sampling techniques and statistical analysis of the acoustic signal to determine whether a random type signal typical of a glass break event has been detected. A host of experiments are analysed and the collective results investigated to minimize the effect |
| 5625338 |
Wireless alarm system |
April 29, 1997 |
| A security system having a two way wireless keypad which operates in a particular manner for improved operation. The keypad processes information to effectively reduce communications between the control panel and the keypad. The keypad selectively activates and deactivates a transmitter |
| 5594428 |
Combination security unit |
January 14, 1997 |
| A security system includes a small hand held remote unit which allows a user to communicate with an inside receiver/transceiver. The inside receiver/transceiver is battery powered and operates in a low power draw standby state until activated to a higher power draw state by receipt of |
| 5523743 |
Self-diagnostic smoke detector |
June 4, 1996 |
| The present invention provides a method for detecting whether an alarm circuit is operating outside its sensitivity range, the alarm circuit having a background signal and a preset alarm threshold signal. The method involves: a) multiplying the background signal by a first gain factor to |
| 5517518 |
Method and arrangement for recognition of a coded transmitted signal |
May 14, 1996 |
| The present invention is for fast, reliable recognition of coded signals where the signal includes a predetermined code sequence in a lead portion thereof. This has particular application in spread spectrum transmission and receptions. The code sequence is a long sequence of bits known t |
| 5504473 |
Method of analyzing signal quality |
April 2, 1996 |
| A motion detecting system is disclosed where the signal from the transducer is analysed in a manner to distinguish between actual motion indicative of an intruder, typical noise expected for the area under supervision and the transducer and a signal which indicates a trouble condition (c |
| 5453733 |
Intrusion alarm with independent trouble evaluation |
September 26, 1995 |
| An arrangement and method for processing signals from infrared microwave and/or ultrasonic intrusion detectors is disclosed which allows the signal to be processed at different amplitude levels to recognize different signal characteristics. This capability to analyze the signal at differ |
| 5444432 |
Detection signal evaluation at varying signal levels |
August 22, 1995 |
| An arrangement and method for processing signals from infrared intrusion detectors is disclosed which allows the signal to be processed at different amplitude levels to recognize different signal characteristics. This capability to analyse the signal at different values allows further |
| 5276427 |
Auto-adjust motion detection system |
January 4, 1994 |
| An improved dual sensor motion detection system is disclosed wherein the sensitivity of at least one of the sensors is adjusted in accordance with the response signals or signal history received from the sensors. This arrangement has application for systems having at least two sensors an |
| 5216410 |
Intrusion alarm sensing unit |
June 1, 1993 |
| The present invention is directed to an intrusion detection system having two different types of motion sensors and processing of the signals produced by the motion sensors in a manner to provide a reliable indication of motion within the space being sensed. The intrusion detection s |
