# US 12,009,884 B2 · Electronic device performing powerline communication and operation method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,009,884 B2 - Document ID: US12009884B2 - Status: Granted - Kind: B2 - Application number: 17/792,778 - Filed: 2021-01-29 - Published: 2023-02-09 - Granted: 2024-06-11 - Earliest claimed: 2020-10-16 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Hee Gu Park; Dong Seong Kim; Kyung Jae Lee - Web page: https://patentgrep.com/patent/US12009884B2 ## CPC - H04B 3/54: Systems for transmission via power distribution lines - A47L 9/0411: {driven by electric motor} - A47L 9/2878: {Dual-powered vacuum cleaners, i.e. devices which can be operated with mains power supply or by batteries} - A47L 9/2894: {Details related to signal transmission in suction cleaners} - G06F 3/12: Digital output to print unit {, e.g. line printer, chain printer} - H04L 12/10: Current supply arrangements - H04L 27/04: Modulator circuits; Transmitter circuits - H04L 67/34: {involving the movement of software or configuration parameters (network booting or remote initial program loading [RIPL] G06F9/4416)} - H04B: TRANSMISSION - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Provided is an electronic apparatus comprising a main body and a kit connected to the main body, wherein the main body comprises a battery, a first motor, an electric wire connected to the battery and a first controller connected to the electric wire, wherein the kit comprises a second motor supplied with power through the electric wire and a second controller connected to the electric wire, wherein the first controller comprises a first signal generator configured to generate a signal to be transmitted to the kit and a first modulator configured to modulate the signal generated by the first signal generator, and wherein the signal modulated by the first modulator is transmitted to the second controller through the electric wire. ## Claims ### Claim 1 An electronic apparatus comprising a main body and a kit connected to the main body, wherein the main body comprises a battery, a first motor, an electric wire connected to the battery and a first controller connected to the electric wire, wherein the kit comprises a second motor supplied with power through the electric wire and a second controller connected to the electric wire, wherein the first controller comprises a first signal generator configured to generate a signal to be transmitted to the kit and a first modulator configured to modulate the signal generated by the first signal generator, wherein the signal modulated by the first modulator is transmitted to the second controller through the electric wire, and herein the main body identifies the kit based on a signal transmitted by the second controller, and transmits a signal for controlling the second controller through the first controller. ### Claim 2 (depends on 1) The electronic apparatus of claim 1, wherein the first controller is connected to the electric wire at a location between the battery and the second controller, and wherein the electric wire comprises a first LC filter located between the battery and the first controller. ### Claim 3 (depends on 1) The electronic apparatus of claim 1, wherein the first modulator performs on-off keying (OOK). ### Claim 4 (depends on 1) The electronic apparatus of claim 1, wherein a frequency of a carrier related to the first modulator is higher than a frequency of a signal generated by the first signal generator, and the frequency of the carrier is equal to or higher than 1 MHz. ### Claim 5 (depends on 1) The electronic apparatus of claim 1, wherein the first controller further comprises a first signal receiver configured to receive a signal transmitted by the second controller, and wherein the first signal receiver comprises a first OP-Amp and a first envelope detector. ### Claim 6 (depends on 5) The electronic apparatus of claim 5, wherein the first signal receiver further comprises a first RC filter connected to a non-inverting input terminal of the first OP-Amp, and wherein the first envelope detector is connected to an inverting input terminal of the first OP-Amp. ### Claim 7 (depends on 6) The electronic apparatus of claim 6, further comprising a first capacitor located between the first RC filter and the first envelope detector, and the electric wire. ### Claim 8 (depends on 1) The electronic apparatus of claim 1, wherein the second controller is connected to the electric wire at a location between the main body and the second motor, and wherein the kit comprises a second LC filter located between the second controller and the second motor. ### Claim 9 (depends on 1) The electronic apparatus of claim 1, wherein the second controller further comprises a second signal receiver configured to receive a signal transmitted by the first controller, a second signal generator configured to generate a signal to be transmitted to the main body, and a second modulator configured to modulate the signal generated by the second signal generator, wherein the second signal receiver further comprises a second OP-Amp, a second envelope detector connected to an inverting input terminal of the second OP-Amp, and a second RC filter connected to a non-inverting input terminal of the second OP-Amp, and wherein a second capacitor is located between the second RC filter and the second envelope detector, and the electric wire. ### Claim 10 (depends on 1) The electronic apparatus of claim 1, wherein the first controller transmits at least one among control information for suction power related to the kit, information on a user input related to an operation of the kit, revolution per minute (RPM) control information of the second motor and information on the battery, to the second controller. ### Claim 11 (depends on 1) The electronic apparatus of claim 1, wherein the second controller transmits at least one among identification information of the kit, operation information of the second motor, usage time information of the kit, sensed information for an object adjacent to the kit and RPM operation information of the second motor, to the first controller. ### Claim 12 (depends on 1) The electronic apparatus of claim 1, wherein the first controller transmits a signal modulated through the first modulator based on AC coupling from the main body to the kit through the electric wire. ### Claim 13 (depends on 1) The electronic apparatus of claim 1, wherein the main body is connected to a server related to the electronic apparatus based on wireless communication, and acquires update data for each of one or more kits related to the electronic apparatus based on a connection with the server. ### Claim 14 (depends on 1) The electronic apparatus of claim 1, wherein the kit is detachable from the main body, and wherein, based on identification that the kit is mounted, the main body identifies software information of the mounted kit, identifies whether or not the software of the mounted kit needs to be updated based on the identified software information, and when the software of the mounted kit needs to be updated, transmits update data to the kit. ### Claim 15 A method of operating an electronic apparatus comprising a main body and a kit connected to the main body, the method comprising: generating a signal to be transmitted from the main body to the kit; modulating the generated signal; and transmitting the modulated signal from the main body to the kit through an electric wire connected to a battery of the main body, wherein the main body comprises the battery, a first motor, the electric wire, and a first controller connected to the electric wire, wherein the kit comprises a second motor supplied with power through the electric wire, and a second controller connected to the electric wire, and wherein the main body identifies the kit based on a signal transmitted by the second controller, and transmits a signal for controlling the second controller through the first controller. ### Claim 16 (depends on 15) The method of claim 15, wherein the second controller transmits at least one of identification information of the kit, operation information of the second motor, usage time information of the kit, sensed information for an object adjacent to the kit, or RPM operation information of the second motor to the first controller. ### Claim 17 (depends on 15) The method apparatus of claim 15, wherein the first controller transmits a signal modulated through the first modulator based on AC coupling from the main body to the kit through the electric wire. ### Claim 18 (depends on 15) The method of claim 15, wherein the main body is connected to a server related to the electronic apparatus based on wireless communication, and acquires update data for each of one or more kits related to the electronic apparatus based on a connection with the server. ### Claim 19 (depends on 15) The method of claim 15, wherein the kit is detachable from the main body, and wherein, based on identification that the kit is mounted, the main body identifies software information of the mounted kit, identifies whether the software of the mounted kit should be updated based on the identified software information, and when the software of the mounted kit should be updated, transmits update data to the kit. ### Claim 20 A method of operating an electronic apparatus comprising a main body and a kit connected to the main body, the method comprising: connecting to a server related to the electronic apparatus based on wireless communication; acquiring update data for each of one or more kits related to the electronic apparatus based on a connection with the server; identifying the kit connected to the main body among the one or more kits; and when update data corresponding to the kit connected to the main body is identified in the acquired update data, modulating a signal corresponding to the identified update data and transmitting a modulated signal from the main body to the kit connected to the main body through an electric wire connected to a battery of the main body, wherein the main body comprises the battery, a first motor, the electric wire and a first controller connected to the electric wire, and wherein the kit comprises a second motor supplied with power through the electric wire, and a second controller connected to the electric wire.