# US 12,112,608 B2 · Asset control system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,112,608 B2 - Document ID: US12112608B2 - Status: Granted - Kind: B2 - Application number: 17/788,467 - Filed: 2020-12-23 - Published: 2023-01-19 - Granted: 2024-10-08 - Earliest claimed: 2019-12-23 - Assignees: E Track Ltd - Applicants: E Track Ltd - Inventors: Adam Slaney-Smith; David Woodfield - Web page: https://patentgrep.com/patent/US12112608B2 ## CPC - G07C 9/00896: {specially adapted for particular uses} - G08B 13/2462: {Asset location systems combined with EAS (inventory, tracking, logistic G06Q10/00; entrance control systems G07C9/00)} - G06K 19/0723: {the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs} - G07C 9/00309: {operated with bidirectional data transmission between data carrier and locks} - G07C 9/28: the pass enabling tracking or indicating presence - G08B 13/2414: {using inductive tags} - G01S 13/751: {wherein the responder or reflector radiates a coded signal} - G07C 2009/00865: {remotely by wireless communication} - G07C 2009/00936: {for key cabinets} - G07C 2209/63: Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle - G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - 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 A system for storing a plurality of tangible assets, the system having an RF component associable with a tangible asset, wherein the RF component has a unique identifier and is configured to receive a carrier signal and emit a modulated carrier signal, wherein modulation of the carrier signal is based on the unique identifier. The system also has an RF detection system having a plurality of RF coils, wherein each coil is arranged to emit a carrier signal and receive the modulated carrier signal emitted by the RF component, a processor in communication with each of the plurality of RF coils, wherein the processor is configured to poll the plurality of RF coils by selectively allowing current to flow through one or more of the plurality of RF coils at a time and identify the RF component based on modulation of the carrier signal. ## Claims ### Claim 1 A system for storing a plurality of tangible assets, the system comprising: an RF component, wherein the RF component is associable with a tangible asset, and wherein the RF component has a unique identifier and is configured to receive a carrier signal and emit a modulated carrier signal, wherein modulation of the carrier signal is based on the unique identifier; an RF detection system, comprising: a plurality of RF coils, wherein each coil is arranged to emit a carrier signal and receive the modulated carrier signal emitted by the RF component; a processor in communication with each of the plurality of RF coils, wherein the processor is configured to: poll the plurality of RF coils by selectively allowing current to flow through one or more of the plurality of RF coils at a time; and, identify the RF component based on modulation of the carrier signal; wherein the RF component is a read/write RF component, and wherein the RF detection system is configured to write to the RF component via any of the plurality of RF coils; wherein the unique identifier of the RF component is a first unique identifier; wherein the RF component stores a second unique identifier; wherein the RF detection system is a first RF detection system; and, wherein the system for storing a plurality of tangible assets comprises a second RF detection system; and, wherein the second unique identifier is recognisable at the second RF detection system, networked to the system for storing a plurality of tangible assets, wherein the first RF detection system is configured to update the second unique identifier. ### Claim 2 (depends on 1) The system of claim 1, wherein the plurality of RF coils are arranged on a single printed circuit board. ### Claim 3 (depends on 1) The system of claim 1, wherein the processor is configured to poll the plurality of RF coils in a repeating sequence. ### Claim 4 (depends on 1) The system of claim 1, wherein each of the plurality of RF coils comprises between 50 and 60 turns. ### Claim 5 (depends on 1) The system of claim 1, wherein the plurality of RF coils are printed over 4 layers of a printed circuit board. ### Claim 6 (depends on 1) The system of claim 1, wherein the first RF detection system is triggered to update the second unique identifier upon identification. ### Claim 7 (depends on 6) The system of claim 6, wherein the updated second unique identifier is communicated to the second RF detection system. ### Claim 8 (depends on 1) The system of claim 1, wherein the first RF detection system is triggered to update the second unique identifier at a specific time. ### Claim 9 (depends on 1) The system of claim 1, comprising: a receptable associated with each of the plurality of RF coils, the RF coils configured to identify the RF component within the respective receptacle associated therewith; a location mechanism configured to locate the RF component at a predetermined insertion depth within the receptacle by exerting an insertion force on the RF component; wherein the controller is configured determine when the RF component is at, or within a predetermined tolerance of, the predetermined insertion depth. ### Claim 10 (depends on 9) The system of claim 9, wherein the RF component is a fob. ### Claim 11 (depends on 10) The system of claim 10, wherein: the location mechanism comprises at least one moveable component; the at least one moveable component is resiliently biased towards a predetermined position; initial insertion of the fob into the receptable causes movement of the at least one moveable component away from the predetermined position; and, wherein insertion of the fob to the predetermined insertion depth within the receptacle causes the at least one moveable component to return towards the predetermined position to locate the fob. ### Claim 12 (depends on 11) The system of claim 11, wherein the at least one moveable component bears against a tapered surface of the fob to cause movement of the at least one moveable component away from the predetermined position. ### Claim 13 (depends on 12) The system of claim 12, wherein the tapered surface of the fob terminates in a shoulder, such that upon location of the fob into the predetermined insertion depth, the at least one moveable component rides over the shoulder towards the predetermined position. ### Claim 14 (depends on 10) The system of claim 10, further comprising a solenoid lock, wherein the receptable is arranged to receive a pin of the solenoid lock, wherein the pin prevents the fob from being withdrawn from the fob receptacle. ### Claim 15 (depends on 1) The system of claim 1, comprising: a receptable associated with each of the plurality of RF coils, the RF coils configured to identify the RF component within the respective receptacle associated therewith; a location mechanism configured to locate the RF component at a predetermined insertion depth within the receptacle by exerting an insertion force on the RF component; a lock for locking the RF component in the receptacle; wherein the lock is arranged to lock the RF component in the receptacle when the RF component is at, or within a predetermined tolerance of, the predetermined insertion depth in the receptacle. ### Claim 16 (depends on 15) The system of claim 15, wherein the RF component is a fob. ### Claim 17 (depends on 16) The system of claim 16, wherein the at least one moveable component bears against a tapered surface of the fob to cause movement of the at least one moveable component away from the predetermined position. ### Claim 18 (depends on 17) The system of claim 17, wherein the tapered surface of the fob terminates in a shoulder, such that upon location of the fob into the predetermined insertion depth, the at least one moveable component rides over the shoulder towards the predetermined position. ### Claim 19 (depends on 1) The system of claim 1, wherein the processor is further configured to determine the distance between the RF component and one of the RF coils based on the peak amplitude of the modulated carrier signal.