# US 11,906,333 B2 · Position detection device and conveyance device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,333 B2 - Document ID: US11906333B2 - Status: Granted - Kind: B2 - Application number: 16/597,475 - Filed: 2019-10-09 - Published: 2020-04-30 - Granted: 2024-02-20 - Earliest claimed: 2018-10-26 - Assignees: Dmg Mori Co., Ltd. - Applicants: Dmg Mori Co., Ltd. - Inventors: Shigeru Ishimoto; Kayoko Taniguchi; Chihiro Murayama - Web page: https://patentgrep.com/patent/US11906333B2 ## CPC - G01D 5/34792: {with only digital scales or both digital and incremental scales} - B65G 43/00: Control devices, e.g. for safety, warning or fault-correcting - G01D 5/00: Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable (G01D3/00 takes precedence; specially adapted for apparatus giving results other than momentary value of variable G01D1/00) - G01D 5/2492: {Pulse stream} - G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR - B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D) ## Abstract Data is utilized more efficiently and effectively. A position detection device includes a plurality of scales that each record absolute data embedded with a scale ID for identifying a scale, a detector that detects the absolute data from each of the plurality of scales, and an extractor that extracts, from the detected absolute data, the scale ID and position data representing the position of the scale. ## Claims ### Claim 1 A position detection device comprising: a plurality of scales that each records absolute data including a scale ID for separately identifying each of the plurality of scales and position data representing a position on any one of the plurality of scales; a detector that detects the absolute data from each of said plurality of scales; an extractor that is configured to extract, from the absolute data detected by the detector, the scale ID and the position data, wherein said extractor extracts the position data by offsetting an offset value corresponding to the scale ID from the absolute data. ### Claim 2 (depends on 1) The position detection device according to claim 1, wherein each of said plurality of scales includes specific absolute data, and said extractor comprises a storage that stores a correspondence between the specific absolute data and the scale ID. ### Claim 3 (depends on 1) The position detection device according to claim 1, wherein the detector is configured to detect and the extractor is configured to extract position data representing each of a plurality of different positions on each of the plurality of scales. ### Claim 4 (depends on 1) The position detection device according to claim 1, wherein the plurality of scales are rotatable. ### Claim 5 A position detection device comprising: a plurality of scales that each records absolute data embedded with a scale ID for separately identifying each of the plurality of scales; a plurality of detectors that detect the absolute data from each of said plurality of scales; an extractor that is configured to extract, from the absolute data detected by the plurality of detectors, the scale ID and position data representing a position on any one of the plurality of scales, wherein said plurality of detectors comprises at least two detectors, and said extractor extracts the scale ID by comparing the absolute data detected by said at least two detectors. ### Claim 6 A position detection device comprising: a plurality of scales that each records absolute data embedded with a scale ID for separately identifying each of the plurality of scales; a detector that detects the absolute data from each of said plurality of scales; an extractor is configured to extract, from the absolute data detected by the detector, the scale ID and position data representing a position on any one of the plurality of scales, wherein each of said plurality of scales includes a first data area for embedding the scale ID and a second data area for embedding the position data, and said extractor extracts the scale ID using the absolute data detected from the first data area, and extracts the position data using the absolute data detected from the second data area. ### Claim 7 (depends on 6) The position detection device according to claim 6, wherein a value of the absolute data includes a value indicating a difference between the first data area and the second data area, and the device further comprises a determinator that determines, based on the value indicating the difference, whether the absolute data is read from the first data area or the second data area. ### Claim 8 A conveyance device comprising: a plurality of conveyors each including a scale that records absolute data which includes a conveyor ID for separately identifying each of the plurality of conveyors and position data representing a position on any one of the plurality of conveyors; a detector that detects the absolute data from the scale of each of said plurality of conveyors; and an extractor that is configured to extract, from the absolute data detected by the detector, the conveyor ID and the position data, wherein said extractor extracts the position data by offsetting an offset value corresponding to the conveyor ID from the absolute data. ### Claim 9 (depends on 8) The conveyance device according to claim 8, comprising a conveyance guide and means for moving the plurality of conveyors along the conveyance guide. ### Claim 10 (depends on 8) The conveyance device according to claim 8, wherein the detector is configured to detect and the extractor is configured to extract position data representing each of a plurality of positions on each of the plurality of conveyors. ### Claim 11 A position detection device comprising: a plurality of scales that each records absolute data including a scale ID for separately identifying each of the plurality of scales and position data representing a position on any one of the plurality of scales; a detector that detects the absolute data from each of said plurality of scales; an extractor that is configured to extract, from the absolute data detected by the detector, the scale ID and the position data, wherein each of said plurality of scales includes specific absolute data, and said extractor comprises a storage that stores a correspondence between the specific absolute data and the scale ID, and wherein said extractor extracts the position data by offsetting an offset value corresponding to the scale ID from the absolute data.