# US 5,705,982 A · Intrusion detection, register and indication apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,705,982 A - Document ID: US5705982A - Status: Granted - Kind: A - Application number: 08/693,809 - Filed: 1996-08-01 - Granted: 1998-01-06 - Earliest claimed: 1996-08-01 - Assignees: North America Technitron Corporation - Inventors: John P. Faltings - Web page: https://patentgrep.com/patent/US5705982A ## CPC - G08B 29/24: Self-calibration, e.g. compensating for environmental drift or ageing of components - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS ## Abstract An apparatus for detecting intrusions into spaces of various kinds such as apartments, offices, lockers, and the like by either authorized or unauthorized persons apparatus monitors a specific portal for intrusion occurrence events using an intrusion sensing unit, which communicates intrusion occurrence information to a remote, and possibly hidden monitor unit. The monitor dynamically counts the number of valid intrusion occurrence signals received from the sensing unit and stores the same in non-volatile memory. The number of intrusions stored in memory can be displayed on a display means at the monitor unit, which, in a simple embodiment would take the form of a single, seven segment light emitting diode (LED) display. In addition, the number of intrusions stored in the non-volatile memory can only be reset by the input of a unique, coded personal identification number (PIN) signal from an input keypad located on the monitor unit. More sophisticated embodiments incorporate date and time displays to indicate more specifically the events surrounding a particular intrusion occurrence. Even more sophisticated embodiments incorporate a primer for producing a hardcopy of intrusion occurrence information. ## Claims ### Claim 1 An apparatus for detecting intrusions into a secured space comprising at least one intrusion occurrence sensor and a remote intrusion occurrence monitor, said monitor comprising means for recording the number of intrusions into said secured space, a means for displaying said number of intrusions and a communications means for sending intrusion occurrence signals from said sensing unit to said monitoring unit, wherein said monitor further comprises a counter for maintaining a count of the number of intrusion occurrences into said secured space, wherein said counter indexes upon receipt of intrusion occurrence signals until a preset maximum number of occurrences are received at which time said counter is unalterable until reset by a user of the apparatus. ### Claim 2 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said sensor comprises a hall effect magnetic switch. ### Claim 3 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said sensor comprises a magnetically activated reed switch. ### Claim 4 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said sensor comprises an optical detector. ### Claim 5 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said sensor comprises an infrared motion detector. ### Claim 6 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said sensor comprises a sound detector. ### Claim 7 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said communications means comprises a hard-wired electrical connection between said sensor and said monitor. ### Claim 8 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said communications means comprises a radio wave frequency signal transmitter co-located with said sensor and a radio wave frequency signal receiver co-located with said monitor. ### Claim 9 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said display means comprises a date and time display to display the date and time of each intrusion occurrence. ### Claim 10 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, further comprising a printer for printing a hard-copy of intrusion occurrence date and time data. ### Claim 11 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said display means comprises at least one light emitting diode. ### Claim 12 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said display means comprises at least one liquid crystal display. ### Claim 13 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said display means comprises at least one seven section numeric light emitting diode. ### Claim 14 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said monitor further comprises a means for resetting said count. ### Claim 15 (depends on 1) The apparatus for detecting intrusions into a secured space of claim 1, wherein said apparatus further comprises at least one down stream device, said down stream device being activated upon the monitor detecting an intrusion into said secured space.