# US 10,768,748 B2 · Position indicator, position detecting device, position detecting circuit, and position detecting method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,768,748 B2 - Document ID: US10768748B2 - Status: Granted - Kind: B2 - Application number: 16/234,268 - Filed: 2018-12-27 - Published: 2019-05-02 - Granted: 2020-09-08 - Earliest claimed: 2014-01-22 - Assignees: Wacom Co., Ltd. - Applicants: Wacom Co., Ltd. - Inventors: Hideyuki Hara - Web page: https://patentgrep.com/patent/US10768748B2 ## CPC - G06F 3/04162: {for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware} - G06F 3/03545: {Pens or stylus} - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - G06F 3/04166: {Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184)} - G06F 3/0418: {for error correction or compensation, e.g. based on parallax, calibration or alignment} - G06F 3/044: by capacitive means - G06F 3/0442: {using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser} - G06F 3/046: by electromagnetic means - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A position indicator includes a housing and circuitry. The circuitry transmits a plurality of signal blocks successively to a position detecting device. Each of the signal blocks includes a position detection signal, a first modulated signal acquired by modulating one part of a plurality of divided parts of position indicator identification information, and a second modulated signal acquired by modulating current position indicator status information acquired successively from a signal supplied to a control terminal or from a voltage state of the control terminal. The position indicator transmits the plurality of divided parts of position indicator identification information by transmitting the plurality of signal blocks. ## Claims ### Claim 1 A signal processing method, comprising: receiving, at a position detecting device, first information and second information different from the first information transmitted from a position indicator, wherein the first information is represented in a digital signal of a first defined number of bits and is divided into a plurality of information parts respectively represented in digital signals of a second defined number of bits smaller than the first defined number of bits, and wherein each of the information parts is received with the second information, storing one of the information parts, which is received, in a memory, performing a comparison between said one of the information parts stored in the memory and another one of the information parts, and processing the second information based on a result of said comparison. ### Claim 2 (depends on 1) The signal processing method according to claim 1, wherein the first information is information unique to the position indicator. ### Claim 3 (depends on 2) The signal processing method according to claim 2, wherein the information unique to the position indicator is at least one of ID information that identifies the position indicator, user ID information assigned to the position indicator, and manufacturer information of the position indicator. ### Claim 4 (depends on 1) The signal processing method according to claim 1, wherein the second information is pressure information detected by the position indicator. ### Claim 5 (depends on 4) The signal processing method according to claim 4, wherein the pressure information is pen tip pressure information of the position indicator. ### Claim 6 (depends on 4) The signal processing method according to claim 4, wherein the pressure information is side pressure information of the position indicator. ### Claim 7 (depends on 1) The signal processing method according to claim 1, comprising: outputting the second information according to the result of said comparison. ### Claim 8 (depends on 1) The signal processing method according to claim 1, comprising: combining the received plurality of information parts of the first information to obtain the first information. ### Claim 9 (depends on 8) The signal processing method according to claim 8, comprising: when detecting an error in the received plurality of information parts, re-receiving the plurality of information parts retransmitted from the position indicator and combining the re-received plurality of information parts to obtain the first information. ### Claim 10 (depends on 9) The signal processing method according to claim 9, comprising: detecting an error in the received plurality of information parts based on an error-detecting code assigned to the information parts. ### Claim 11 (depends on 9) The signal processing method according to claim 9, comprising: when detecting an error in the received plurality of information parts, re-receiving the plurality of information parts retransmitted from the position indicator and combining the re-received plurality of information parts to obtain the first information. ### Claim 12 (depends on 1) The signal processing method according to claim 1, comprising: performing said comparison in response to receiving said another one of the information parts. ### Claim 13 (depends on 1) The signal processing method according to claim 1, comprising: storing the second information in the memory. ### Claim 14 A signal processing method, comprising: receiving, at a position detecting device, first information and second information different from the first information transmitted from a position indicator, wherein the first information is represented in a digital signal of a first defined number of bits and is divided into a plurality of information parts respectively represented in digital signals of a second defined number of bits smaller than the first defined number of bits, and wherein each of the information parts is received with the second information in a signal block, storing one of the information parts, which is received, in a memory, performing a comparison between said one of the information parts stored in the memory and another one of the information parts, and processing the second information based on a result of said comparison. ### Claim 15 (depends on 14) The signal processing method according to claim 14, comprising: receiving a plurality of signal blocks respectively including the plurality of information parts of the first information and the second information, and combining the received plurality of information parts of the first information to obtain the first information. ### Claim 16 (depends on 15) The signal processing method according to claim 15, comprising: when detecting an error in the received plurality of signal blocks based on an error-detecting code assigned to the signal blocks, re-receiving the plurality of signal blocks retransmitted from the position indicator and combining the re-received plurality of information parts to obtain the first information. ### Claim 17 A signal processing method, comprising: receiving, at a position detecting device, first information transmitted from a position indicator, wherein the first information is represented in a digital signal of a first defined number of bits and is divided into a plurality of information parts respectively represented in digital signals of a second defined number of bits smaller than the first defined number of bits, storing the received plurality of information parts in a memory, and combining the received plurality of information parts to obtain the first information. ### Claim 18 (depends on 17) The signal processing method according to claim 17, wherein the first information is information unique to the position indicator. ### Claim 19 (depends on 18) The signal processing method according to claim 18, wherein the information unique to the position indicator is at least one of ID information that identifies the position indicator, user ID information assigned to the position indicator, and manufacturer information of the position indicator. ### Claim 20 (depends on 17) The signal processing method according to claim 17, comprising: detecting an error in the received plurality of information parts based on an error-detecting code assigned to the information parts.