# US 2020/0401266 A1 · 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 2020/0401266 A1 - Document ID: US20200401266A1 - Status: Published application - Kind: A1 - Application number: 17/010,618 - Filed: 2020-09-02 - Published: 2020-12-24 - Earliest claimed: 2014-01-22 - Assignees: Wacom Co., Ltd. - Applicants: Wacom Co., Ltd. - Inventors: Hideyuki Hara - Web page: https://patentgrep.com/patent/US20200401266A1 ## 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 transmission method, comprising: dividing first information, which is represented in a digital signal of a first defined number of bits, 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 transmitting, from a position indicator to a position detecting device, the information parts, and distinguishing information usable for distinguishing the information parts from each other, wherein each of the information parts is transmitted with second information different from the first information. ### Claim 2 (depends on 1) The signal transmission method according to claim 1, wherein the distinguishing information is usable for reconstructing the first information. ### Claim 3 (depends on 1) The signal transmission method according to claim 1, comprising transmitting, from the position indicator to the position detecting device, an error detection code usable for detection of an error in the information parts. ### Claim 4 (depends on 1) The signal transmission method according to claim 1, wherein the first information is information unique to the position indicator. ### Claim 5 (depends on 4) The signal transmission method according to claim 4, 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 6 (depends on 1) The signal transmission method according to claim 1, wherein the second information is pressure information detected by the position indicator. ### Claim 7 (depends on 6) The signal transmission method according to claim 6, wherein the pressure information is pen tip pressure information of the position indicator. ### Claim 8 A signal transmission method, comprising: dividing first information, which is represented in a digital signal of a first defined number of bits, 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 transmitting, from a position indicator to a position detecting device, the information parts, and distinguishing information usable for distinguishing the information parts from each other. ### Claim 9 (depends on 8) The signal transmission method according to claim 8, wherein the distinguishing information is usable for reconstructing the first information. ### Claim 10 (depends on 8) The signal transmission method according to claim 8, comprising transmitting, from the position indicator to the position detecting device, an error detection code usable for detection of an error in the information parts. ### Claim 11 (depends on 8) The signal transmission method according to claim 8, wherein the first information is information unique to the position indicator. ### Claim 12 (depends on 11) The signal transmission method according to claim 11, 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 13 (depends on 8) The signal transmission method according to claim 8, comprising transmitting, from the position indicator to the position detecting device, second information different from the first information with each of the information parts, wherein the second information is pressure information detected by the position indicator. ### Claim 14 (depends on 13) The signal transmission method according to claim 13, wherein the pressure information is pen tip pressure information of the position indicator. ### Claim 15 A signal transmission method, comprising: dividing first information, which is represented in a digital signal of a first defined number of bits, 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 transmitting, from a position indicator to a position detecting device, the information parts, and an error detection code usable for detection of an error in the information parts. ### Claim 16 (depends on 15) The signal transmission method according to claim 15, comprising transmitting, from the position indicator to the position detecting device, distinguishing information usable for distinguishing the information parts from each other and usable for reconstructing the first information. ### Claim 17 (depends on 15) The signal transmission method according to claim 15, comprising transmitting, from the position indicator to the position detecting device, second information different from the first information with each of the information parts. ### Claim 18 (depends on 15) The signal transmission method according to claim 15, wherein the first information is information unique to the position indicator. ### Claim 19 (depends on 18) The signal transmission 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 15) The signal transmission method according to claim 15, comprising transmitting, from the position indicator to the position detecting device, second information different from the first information with each of the information parts, wherein the second information is pressure information detected by the position indicator. ### Claim 21 (depends on 20) The signal transmission method according to claim 20, wherein the pressure information is pen tip pressure information of the position indicator. ### Claim 22 A signal transmission method, comprising: dividing first information, which is represented in a digital signal of a first defined number of bits, 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 modulating the information parts using a defined modulation method; and transmitting, from a position indicator to a position detecting device, a start signal, and subsequently transmitting, from the position indicator to the position detecting device, the modulated information parts. ### Claim 23 (depends on 22) The signal transmission method according to claim 22, comprising transmitting, from the position indicator to the position detecting device, distinguishing information usable for distinguishing the information parts from each other. ### Claim 24 (depends on 23) The signal transmission method according to claim 23, wherein the distinguishing information is usable for reconstructing the first information. ### Claim 25 (depends on 22) The signal transmission method according to claim 22, comprising transmitting, from the position indicator to the position detecting device, an error detection code usable for detection of an error in the information parts. ### Claim 26 (depends on 22) The signal transmission method according to claim 22, comprising transmitting, from the position indicator to the position detecting device, second information different from the first information with each of the information parts ### Claim 27 (depends on 22) The signal transmission method according to claim 22, wherein the first information is information unique to the position indicator. ### Claim 28 (depends on 22) The signal transmission method according to claim 22, comprising transmitting, from the position indicator to the position detecting device, second information different from the first information with each of the information parts, wherein the second information is pressure information detected by the position indicator.