# US 10,312,723 B2 · Electronic device and method of controlling electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,312,723 B2 - Document ID: US10312723B2 - Status: Granted - Kind: B2 - Application number: 15/280,578 - Filed: 2016-09-29 - Published: 2017-04-13 - Granted: 2019-06-04 - Earliest claimed: 2015-10-09 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Yasuhiro Sato - Web page: https://patentgrep.com/patent/US10312723B2 ## CPC - H02J 7/04: Regulation of charging current or voltage - G05B 15/02: electric - G06F 1/26: Power supply means, e.g. regulation thereof (for memories G11C) - H02J 7/685: {using connection detecting circuits (H02J7/68 takes precedence)} - H02J 7/90: Regulation of charging or discharging current or voltage - G05B 2219/2639: Energy management, use maximum of cheap power, keep peak load low - H02J 7/47: Arrangements for checking compatibility or authentication between one component, e.g. a battery or a battery charger, and another component, e.g. a power source - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract An electronic device comprises a power control unit that performs control to supply power supplied from an external apparatus to the electronic device to a first power path and a second power path, wherein the first power path differs from the second power path, and the second power path is a power path for supplying power supplied from the external apparatus to the electronic device to a battery, and an authentication unit that performs authentication to determine whether the battery is a predetermined battery. The power control unit limits supply of power supplied from the external apparatus to the electronic device to the first power path and the second power path when the authentication has failed. ## Claims ### Claim 1 An electronic device comprising: an authentication unit that performs authentication to determine whether a battery is a predetermined battery; a power receiving unit that receives power supplied from an external apparatus; and a power control unit that (a) controls power supplied from the external apparatus to a first power path and a second power path if it has been determined that the battery is the predetermined battery, and (b) limits power supplied from the external apparatus to the first power path and the second power path if it has been determined that the battery is not the predetermined battery, wherein the first power path differs from the second power path, and the second power path is a power path for supplying power from the power control unit to the battery. ### Claim 2 (depends on 1) The electronic device according to claim 1, wherein the second power path is provided so as to branch off from the first power path, and wherein the power control unit limits power supplied from the external apparatus to the second power path by limiting power supplied from the external apparatus to the first power path. ### Claim 3 (depends on 1) The electronic device according to claim 1, wherein the second power path is connected to the first power path via a switching unit. ### Claim 4 (depends on 1) The electronic device according to claim 1, wherein when the electronic device is activated, the authentication unit performs the authentication by using power supplied from the battery. ### Claim 5 (depends on 1) The electronic device according to claim 1, wherein the first power path is a power path for supplying power supplied from the power receiving unit to a component of the electronic device, and wherein the component of the electronic device differs from the battery. ### Claim 6 (depends on 1) The electronic device according to claim 1, wherein the power control unit limits power supplied from the external apparatus to the second power path by limiting power supplied from the external apparatus to the first power path if it has been determined that the battery is not the predetermined battery. ### Claim 7 A method comprising: performing authentication to determine whether a battery is a predetermined battery; causing a power receiving unit to receive power supplied from an external apparatus; controlling power supplied from the external apparatus to a first power path and a second power path if it has been determined that the battery is the predetermined battery; and limiting power supplied from the external apparatus to the first power path and the second power path if it has been determined that the battery is not the predetermined battery, wherein the first power path differs from the second power path, and the second power path is a power path for supplying power from the power control unit to the battery. ### Claim 8 A non-transitory storage medium that stores a program causing a computer to execute a method, the method comprising: performing authentication to determine whether a battery is a predetermined battery; causing a power receiving unit to receive power supplied from an external apparatus; controlling power supplied from the external apparatus to a first power path and a second power path if it has been determined that the battery is the predetermined battery; and limiting power supplied from the external apparatus to the first power path and the second power path if it has been determined that the battery is not the predetermined battery, wherein the first power path differs from the second power path, and the second power path is a power path from supplying power from the power control unit to the battery. ### Claim 9 An electronic device comprising: an authentication unit that performs authentication to determine whether a battery is a predetermined battery; a power receiving unit that receives power supplied from an external apparatus; and a power control unit that (a) controls power supplied from the external apparatus to a first power path and a second power path if it has been determined that the battery is the predetermined battery, and (b) limits power supplied from the external apparatus to the second power path if it has been determined that the battery is not the predetermined battery, wherein the first power path differs from the second power path, and the second power path is a power path for supplying power from the power control unit to the battery. ### Claim 10 (depends on 9) The electronic device according to claim 9, wherein the second power path is provided so as to branch off from the first power path, and wherein the power control unit limits power supplied from the external apparatus to the second power path by limiting power supplied from the external apparatus to the first power path. ### Claim 11 (depends on 9) The electronic device according to claim 9, wherein the second power path is connected to the first power path via a switching unit. ### Claim 12 (depends on 9) The electronic device according to claim 9, wherein, when the electronic device is activated, the authentication unit performs the authentication by using power supplied from the battery. ### Claim 13 (depends on 9) The electronic device according to claim 9, wherein the first power path is a power path for supplying power supplied from the power receiving unit to a component of the electronic device, and wherein the component of the electronic device differs from the battery. ### Claim 14 (depends on 9) The electronic device according to claim 9, wherein the power control unit limits power supplied from the external apparatus to the second power path by limiting power supplied from the external apparatus to the first power path if it has been determined that the battery is not the predetermined battery. ### Claim 15 A method comprising: performing authentication to determine whether a battery is a predetermined battery; causing a power receiving unit to receive power supplied from an external apparatus; controlling power supplied from the external apparatus to a first power path and a second power path if it has been determined that the battery is the predetermined battery; and limiting power supplied from the external apparatus to the second power path if it has been determined that the battery is not the predetermined battery, wherein the first power path differs from the second power path, and the second power path is a power path for supplying power from the power control unit to the battery. ### Claim 16 A non-transitory storage medium that stores a program causing a computer to execute a method, the method comprising: performing authentication to determine whether a battery is a predetermined battery; causing a power receiving unit to receive power supplied from an external apparatus; controlling power supplied from the external apparatus to a first power path and a second power path if it has been determined that the battery is the predetermined battery; and limiting power supplied from the external apparatus to the second power path if it has been determined that the battery is not the predetermined battery, wherein the first power path differs from the second power path, and the second power path is a power path for supplying power from the power control unit to the battery.