# US 11,113,936 B2 · Geolocation method and anti-theft tracer implementing such a method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,113,936 B2 - Document ID: US11113936B2 - Status: Granted - Kind: B2 - Application number: 16/641,304 - Filed: 2018-08-22 - Published: 2020-12-10 - Granted: 2021-09-07 - Earliest claimed: 2017-08-23 - Assignees: M2aim - Applicants: M2Aim - Inventors: Julien Fessard - Web page: https://patentgrep.com/patent/US11113936B2 ## CPC - G08B 13/1436: {with motion detection} - G01S 19/24: Acquisition or tracking {or demodulation} of signals transmitted by the system {(synchronisation aspects of direct sequence spread spectrum modulation H04B1/7073)} - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ## Abstract The invention concerns a geolocation method (200) and an anti-theft tracer (1) for inserting in the butt (21) of a firearm (2), said geolocation method (200) making it possible to determine the geographical coordinates of said anti-theft tracer (1) and to detect an unwanted movement. The geolocation method (200) also makes it possible to communicate with a device in order to transmit data relating to the movement of the anti-theft tracer (1). The present invention also concerns such an anti-theft tracer (1) which comprises, in particular, damping means (102) for reducing the vibrations generated by use of the firearm (2) and transmitted to the electronic components of said anti-theft tracer (1). ## Claims ### Claim 1 A geolocation method for a firearm using an anti-theft tracer, said geolocation method comprising the following steps: a step of determining geographic coordinates of the anti-theft tracer, using a geolocation module of said anti-theft tracer; a step of transmitting the geographic coordinates to a remote server, by means of a first or a second telecommunications module of the anti-theft tracer; a timeout step of providing an electrical supply to one or more of the geolocation module, the first telecommunications module, and the second telecommunications module in order to enable operation; and, following the timeout step, a step of putting the anti-theft tracer onto standby, in which an electronic circuit of said anti-theft tracer cuts off the electrical supply of the geolocation module and of the second telecommunications module, wherein the remote server transmits a first warning signal to a mobile telephone when the geographic coordinates determined by the geolocation module change relative to reference geographic coordinates taken before entering standby mode, and wherein the remote server transmits a second warning signal to the mobile telephone when the geographic coordinates determined by the geolocation module show a movement of the anti- theft tracer that is greater than a reference amplitude. ### Claim 2 (depends on 1) The geolocation method according to claim 1, wherein the first telecommunications module is designed to communicate with the remote server according to a Short Message Service (SMS) communications protocol, and/or the second telecommunications module is designed to communicate with the remote server according to a General Packet Radio Service (GPRS) or Long Range Wide Area Network (LoRaWAN) network protocol. ### Claim 3 (depends on 1) The geolocation method according to claim 1, wherein, if an accelerometer of the anti-theft tracer detects an acceleration of said anti-theft tracer that is above a reference threshold, when said anti-theft tracer is on standby, then: the electronic circuit of said anti-theft tracer reactivates the first and/or second telecommunications module and the geolocation module; the geolocation module determines the geographic coordinates of the anti-theft tracer; the first or the second telecommunications module transmits the geographic coordinates to the remote server. ### Claim 4 An anti-theft tracer housed in a butt of a firearm, said anti-theft tracer comprising: a geolocation module; a first telecommunications module; a second telecommunications module; and an electronic circuit configured to: determine geographic coordinates of the anti-theft tracer, using the geolocation module; transmit the geographic coordinates to a remote server, by means of the first or the second telecommunications module; perform a timeout step of providing an electrical supply to one or more of the geolocation module, the first telecommunications module, and the second telecommunications module in order to enable operation; and, following the timeout step, put the anti-theft tracer onto standby, in which the electronic circuit cuts off the electrical supply of the geolocation module and of the second telecommunications module, wherein the remote server transmits a first warning signal to a mobile telephone when the geographic coordinates determined by the geolocation module change relative to reference geographic coordinates taken before entering standby mode, and wherein the remote server transmits a second warning signal to the mobile telephone when the geographic coordinates determined by the geolocation module show a movement of the anti- theft tracer that is greater than a reference amplitude. ### Claim 5 (depends on 4) The anti-theft tracer according to claim 4, said anti-theft tracer comprising a housing that accommodates: the geolocation module; the first telecommunications module which is designed to be able to communicate with the remote server; the second telecommunications module which is designed to be able to communicate with the remote server; a battery which is designed for electrically supplying the first telecommunications module and/or the second telecommunications module and/or the geolocation module; the electronic circuit that is designed to control the geolocation module, the first and the second telecommunications module, and the battery; said anti-theft tracer comprising a damping device adapted to damp vibrations, oscillations, and shocks when said anti-theft tracer is accommodated in a reception recess of the butt during a discharge of the firearm. ### Claim 6 (depends on 5) The anti-theft tracer according to claim 5, wherein the damping device comprises a plurality of grooves that extend on at least one peripheral surface of the housing, between a first lateral edge and a second opposing lateral edge of said housing. ### Claim 7 (depends on 6) The anti-theft tracer according to claim 6, wherein each groove extends in a straight manner, between the first lateral edge and the second lateral edge. ### Claim 8 (depends on 7) The anti-theft tracer according to claim 7, wherein, in a plane in parallel with a lateral edge of the housing, all the grooves have the same profile. ### Claim 9 (depends on 8) The anti-theft tracer according to claim 8, wherein each groove is formed by a first segment and a second segment that is adjacent to said first segment, said first segment being oriented in accordance with a first angle with respect to a longitudinal direction of the housing, and said second segment being oriented in accordance with a second angle with respect to said longitudinal direction of the housing. ### Claim 10 (depends on 5) The anti-theft tracer according to claim 5, and comprising at least one shim that is designed to be able to be fixed in a non-movable manner to a bearing surface of the housing and located opposite said at least one shim. ### Claim 11 (depends on 10) The anti-theft tracer according to claim 10, wherein each shim comprises an anchoring device that collaborates with a complementary anchoring device that is formed on the bearing surface of the housing and is located opposite said anchoring device. ### Claim 12 (depends on 11) The anti-theft tracer according to claim 11, wherein the anchoring device of the shim comprises a plurality of structures that extend so as to project relative to a bearing surface of said shim, against the bearing surface opposite the housing, the complementary anchoring device of said housing comprising a plurality of depressions that are formed on the bearing surface opposite, and designed so as to accommodate the corresponding structure. ### Claim 13 (depends on 12) The anti-theft tracer according to claim 12, wherein each shim comprises a plurality of grooves that extend on a surface opposite the bearing surface of said shim, between a first lateral edge and a second opposing lateral edge of said shim. ### Claim 14 (depends on 13) The anti-theft tracer according to claim 13, wherein a spacing pitch of the grooves of each shim is equal to a spacing pitch of a plurality of grooves that extend on at least one peripheral surface of the housing, between a first lateral edge and a second opposing lateral edge of said housing. ### Claim 15 (depends on 14) The anti-theft tracer according to claim 14, wherein a profile of the grooves of each shim is identical to a profile of the grooves of the housing. ### Claim 16 (depends on 10) The anti-theft tracer according to claim 10, wherein the housing and/or the at least one shim are made of a deformable material.