# US 12,602,557 B2 · Decoding and validation of machine-readable codes via multiple spectra of light > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,602,557 B2 - Document ID: US12602557B2 - Status: Granted - Kind: B2 - Application number: 18/989,630 - Filed: 2024-12-20 - Published: 2025-04-17 - Granted: 2026-04-14 - Earliest claimed: 2023-03-31 - Assignees: TORC Robotics, Inc. - Applicants: Torc Robotics, Inc. - Inventors: Joseph Fox-Rabinovitz - Web page: https://patentgrep.com/patent/US12602557B2 ## CPC - G06K 7/10544: {by scanning of the records by radiation in the optical part of the electromagnetic spectrum} - G06K 7/12: using a selected wavelength, e.g. to sense red marks and ignore blue marks - G06K 19/06037: {multi-dimensional coding} - G06K 19/0614: {the marking being selective to wavelength, e.g. color barcode or barcodes only visible under UV or IR (methods or arrangements for sensing record carriers using a selected wavelength, see G06K7/12)} - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS ## Abstract Aspects of this technical solution can include a first layer having a first region and a second region, the first region and the second region having a first transmissivity property corresponding to a first portion of a spectrum of light and a second portion of the spectrum of light, having the first transmissivity property, and a second layer disposed over the first layer and having a third region and a fourth region, the third region and the fourth region having a second transmissivity property corresponding to the first portion of the spectrum of light and the second portion of the spectrum of light. ## Claims ### Claim 1 An apparatus, comprising: a first region and a second region, the first region and the second region having a first transmissivity property corresponding to a first portion of a spectrum of light and a second portion of the spectrum of light; and a third region and a fourth region, the third region and the fourth region having a second transmissivity property corresponding to the first portion of the spectrum of light and the second portion of the spectrum of light. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the first region and the second region define a first alignment pattern and a first payload pattern, and the third region and the fourth region define a second alignment pattern and a second payload pattern. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein the first payload pattern includes a first encoding of metadata related to the first payload pattern. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein the second payload pattern includes a second encoding of the metadata related to the first payload pattern. ### Claim 5 (depends on 4) The apparatus of claim 4, wherein the second payload pattern includes an encoding of at least one of a checksum or hash associated with at least a portion of the first payload pattern. ### Claim 6 (depends on 1) The apparatus of claim 1, further comprising a first layer, wherein the first region and the second region are positioned in the first layer and define a first encoding, the first layer having a planar structure. ### Claim 7 (depends on 6) The apparatus of claim 6, further comprising a second layer, wherein the third region and the fourth region are positioned in the second layer and define a second encoding, and the second layer having the planar structure and disposed over the first layer. ### Claim 8 (depends on 7) The apparatus of claim 7, further comprising a substrate layer, the second layer disposed over the substrate layer. ### Claim 9 (depends on 1) The apparatus of claim 1, further comprising a third layer having a third transmissivity property corresponding to a third portion of the spectrum light distinct from the first portion of the spectrum of light and the second portion of the spectrum light. ### Claim 10 (depends on 9) The apparatus of claim 9, wherein the first portion of the spectrum of light corresponds to infrared light, the second portion of the spectrum of light corresponds to visible light, and the third portion of the spectrum of light corresponds to ultraviolet light. ### Claim 11 A method of detection of codes in a plurality of spectra of light, the method comprising: detecting, by a sensor of a vehicle configured to detect a first portion of a spectrum of light, a first region and a second region of an object, the first region and the second region having a first transmissivity property corresponding to the first portion of a spectrum of light and a second portion of the spectrum of light; and decoding, by a processor, a first encoding defined by the first region and the second region, the first encoding corresponding to a first machine-readable code visible in the first portion of the spectrum of light and invisible in the second portion of the spectrum of light. ### Claim 12 (depends on 11) The method of claim 11, further comprising: identifying, by the processor, the first encoding, while the vehicle is in a physical environment including the object. ### Claim 13 (depends on 12) The method of claim 12, further comprising: detecting, by the sensor configured to detect the second portion of the spectrum of light, a third region and a fourth region of the object, the third region and the fourth region having a second transmissivity property corresponding to the first portion of the spectrum of light and the second portion of the spectrum of light; and decoding, by the processor, a second encoding defined by the third region and the fourth region, the second encoding corresponding to a second machine-readable code visible in the second portion of the spectrum of light and invisible in the first portion of the spectrum of light. ### Claim 14 (depends on 13) The method of claim 13, further comprising: identifying, by the processor, the second encoding, where the vehicle is in the physical environment. ### Claim 15 (depends on 13) The method of claim 13, further comprising: authenticating, by the processor, the first encoding based on the second encoding. ### Claim 16 (depends on 15) The method of claim 15, wherein authenticating further comprises identifying a discrepancy between a hash of information based on the first encoding and the second encoding. ### Claim 17 An apparatus, comprising: a first layer having a first region and a second region, the first region and the second region having a first transmissivity property corresponding to a first portion of a spectrum of light and a second portion of the spectrum of light; and a second layer disposed over the first layer and having a third region and a fourth region, the third region and the fourth region having a second transmissivity property corresponding to the first portion of the spectrum of light and the second portion of the spectrum of light; wherein the first layer defines a first encoding, and the second layer defines a second encoding, at least one of the first encoding or the second encoding including metadata associated with the first encoding. ### Claim 18 (depends on 17) The apparatus of claim 17, wherein the first region and the second region define a first alignment pattern and a first payload pattern, and the third region and the fourth region define a second alignment pattern and a second payload pattern. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein the first payload pattern includes a first encoding of metadata related to the first payload pattern. ### Claim 20 (depends on 19) The apparatus of claim 19, wherein the second payload pattern includes a second encoding of at least one of a checksum or hash associated with at least a portion of the first payload pattern.