# US 11,444,662 B2 · Device and method for transmitting data in wireless power transmission system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,444,662 B2 - Document ID: US11444662B2 - Status: Granted - Kind: B2 - Application number: 17/675,882 - Filed: 2022-02-18 - Published: 2022-06-02 - Granted: 2022-09-13 - Earliest claimed: 2018-09-03 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Jinho Youn; Jaeyeol Kim; Seonghun Lee; Hyokune Hwang - Web page: https://patentgrep.com/patent/US11444662B2 ## CPC - H04B 5/79: for data transfer in combination with power transfer - H02J 7/02: for charging batteries from AC mains by converters - H02J 50/12: of the resonant type - H02J 50/40: using two or more transmitting or receiving devices (H02J50/50 takes precedence) - H02J 50/60: responsive to the presence of foreign objects, e.g. detection of living beings - H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices - H04B 5/266: {One coil at each side, e.g. with primary and secondary coils} - H02J 7/42: with electronic devices having internal batteries, e.g. mobile phones - H04B 5/263: {Multiple coils at either side} - H04B 5/45: Transponders - H04B: TRANSMISSION - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY ## Abstract A method for transmitting a control error packet to a wireless power transmitter includes transmitting the control error packet including a control error value to the wireless power transmitter within a first time interval or a second time interval larger than the first time interval, based on a type of a power profile and a version of wireless power transfer standard with which the wireless power receiver and the wireless power transmitter comply. When the version of the wireless power transfer standard is a first version, the wireless power receiver transmits the control error packet within the first time interval. When the version of the wireless power transfer standard is a second version higher than the first version and the type of the power profile is an extended power profile, the wireless power receiver transmits the control error packet within the second time interval. ## Claims ### Claim 1 A method for transmitting a control error packet to a wireless power transmitter in a wireless power transfer system, the method performed by a wireless power receiver and comprising: transmitting the control error packet including a control error value to the wireless power transmitter within a first time interval or a second time interval larger than the first time interval, based on a type of a power profile and a version of wireless power transfer standard with which the wireless power receiver and the wireless power transmitter comply, wherein, when the version of the wireless power transfer standard is a first version, the wireless power receiver transmits the control error packet within the first time interval, when the version of the wireless power transfer standard is a second version higher than the first version and the type of the power profile is an extended power profile (EPP), the wireless power receiver transmits the control error packet within the second time interval. ### Claim 2 (depends on 1) The method of claim 1, wherein, when the version of the wireless power transfer standard is the first version, the wireless power receiver transmits the control error packet within the first time interval, when the version of the wireless power transfer standard is the second version higher than the first version, the type of the power profile is the EPP, and transmission of a data packet is needed, the wireless power receiver transmits the control error packet within the second time interval. ### Claim 3 (depends on 1) The method of claim 1, wherein the first time interval is larger than the second time interval by two times or more. ### Claim 4 (depends on 1) The method of claim 1, wherein, according to the type of the power profile and the version of the wireless power transfer standard with which the wireless power receiver and the wireless power transmitter comply, a time-out of the control error packet is determined as a first time-out or a second time-out larger than the first time-out. ### Claim 5 (depends on 4) The method of claim 4, wherein, when the version of the wireless power transfer standard is the first version, the time-out for the control error packet is determined as the first time-out, when the version of the wireless power transfer standard is the second version higher than the first version and the type of the power profile is the EPP, the time-out for the control error packet is determined as the second time-out. ### Claim 6 (depends on 4) The method of claim 4, wherein the first time interval is smaller than the first time-out, and the second time interval is smaller than the second time-out. ### Claim 7 A method for receiving a control error packet from a wireless power receiver in a wireless power transfer system, the method performed by a wireless power transmitter and comprising: receiving the control error packet including a control error value from the wireless power receiver within a first time interval or a second time interval larger than the first time interval based on a type of a power profile and a version of wireless power transfer standard with which the wireless power receiver and the wireless power transmitter comply, wherein, when the version of the wireless power transfer standard is a first version, the wireless power transmitter receives the control error packet within the first time interval, when the version of the wireless power transfer standard is a second version higher than the first version and the type of the power profile is an extended power profile (EPP), the wireless power transmitter receives the control error packet within the second time interval. ### Claim 8 (depends on 7) The method of claim 7, wherein, when the version of the wireless power transfer standard is the first version, the wireless power transmitter receives the control error packet within the first time interval, when the version of the wireless power transfer standard is the second version higher than the first version, the type of the power profile is the EPP, and transmission of a data packet is needed, the wireless power transmitter receives the control error packet within the second time interval. ### Claim 9 (depends on 7) The method of claim 7, wherein the first time interval is larger than the second time interval by two times or more. ### Claim 10 (depends on 7) The method of claim 7, wherein, according to the type of the power profile and the version of the wireless power transfer standard with which the wireless power receiver and the wireless power transmitter comply, a time-out of the control error packet is determined as a first time-out or a second time-out larger than the first time-out. ### Claim 11 (depends on 10) The method of claim 10, wherein, when the version of the wireless power transfer standard is the first version, the time-out for the control error packet is determined as the first time-out, when the version of the wireless power transfer standard is the second version higher than the first version and the type of the power profile is the EPP, the time-out for the control error packet is determined as the second time-out. ### Claim 12 (depends on 10) The method of claim 10, wherein the first time interval is smaller than the first time-out, and the second time interval is smaller than the second time-out.