# US 9,438,065 B2 · Portable electronic device, wireless charging device for the same, and wireless charging system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,438,065 B2 - Document ID: US9438065B2 - Status: Granted - Kind: B2 - Application number: 14/220,259 - Filed: 2014-03-20 - Published: 2015-07-16 - Granted: 2016-09-06 - Earliest claimed: 2014-01-16 - Assignees: Snu R&Db Foundation - Applicants: Snu R&Db Foundation - Inventors: Jung Woo Lee; Sung Su Lee - Web page: https://patentgrep.com/patent/US9438065B2 ## CPC - H02J 7/70: characterised by the mechanical construction - H02J 50/10: using inductive coupling - H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries - H02J 7/42: with electronic devices having internal batteries, e.g. mobile phones - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY ## Abstract A wireless charging device may include: a transmitting unit configured to receive a high-frequency AC current and generate magnetic energy; and a first fixing unit disposed on a rear surface of the transmitting unit and configured to generate a designated magnitude or more of attractive force. ## Claims ### Claim 1 A portable electronic device comprising: a battery cell; a receiving unit configured to receive magnetic energy and provide the received magnetic energy to the battery cell; a second fixing unit disposed on a rear surface of the receiving unit; and a transmitting unit configured to change a transmission path of data in response to a user's request, wherein the receiving unit operates as a second transmitting/receiving unit configured to wirelessly transmit the data outputted from the transmitting unit. ### Claim 2 (depends on 1) The portable electronic device according to claim 1, wherein the portable electronic device is packaged by a housing, the receiving unit is formed on one rear surface of the housing, and the second fixing unit is formed on the rear surface of the receiving unit. ### Claim 3 (depends on 1) The portable electronic device according to claim 1, wherein the second fixing unit is selected from a permanent magnet and a steel plate. ### Claim 4 (depends on 1) The portable electronic device according to claim 1, wherein the receiving unit comprises a secondary coil. ### Claim 5 (depends on 1) The portable electronic device according to claim 1, wherein the transmitting unit comprises: a switching unit configured to change an output path of the data; and a modulation unit configured to modulate the data transmitted through the switching unit and transmit the modulated data to the second transmitting/receiving unit. ### Claim 6 (depends on 1) The portable electronic device according to claim 1, wherein the data comprises multimedia data or video data. ### Claim 7 (depends on 1) The portable electronic device according to claim 1, wherein the receiving unit comprises a secondary coil. ### Claim 8 A wireless charging system comprising: a wirelessly charging device configured to generate magnetic energy and a designated magnitude or more of attractive force; and a portable electronic device attached to the wireless charging device through an attractive force and charged with power through the magnetic energy provided from the wireless charging device, wherein the portable electronic device comprises: a transmitting unit configured to change a transmission path of data in response to a user's request; a battery cell; a second transmitting/receiving unit configured to receive the magnetic energy, provide the received magnetic energy to the battery cell, and wirelessly transmit the data provided from the transmitting unit; and a second fixing unit disposed on a rear surface of the second transmitting/receiving unit. ### Claim 9 (depends on 8) The wireless charging system according to claim 8, wherein the wireless charging device comprises: a transmitting unit configured to receive a high-frequency AC current and generate the magnetic energy; and a first fixing unit disposed on a rear surface of the transmitting unit and configured to generate the designated magnitude or more of attractive force. ### Claim 10 (depends on 9) The wireless charging system according to claim 9, wherein the first fixing unit is selected from a permanent magnet and an electromagnet. ### Claim 11 (depends on 9) The wireless charging system according to claim 9, wherein the transmitting unit comprises a primary coil. ### Claim 12 (depends on 8) The wireless charging system according to claim 8, wherein the portable electronic device comprises: a battery cell; a receiving unit configured to receive the magnetic energy and provide the received magnetic energy to the battery cell; and a second fixing unit disposed on a rear surface of the receiving unit. ### Claim 13 (depends on 12) The wireless charging system according to claim 12, wherein the second fixing unit is selected from a permanent magnet and a steel plate. ### Claim 14 (depends on 12) The wireless charging system according to claim 12, wherein the receiving unit comprises a secondary coil. ### Claim 15 (depends on 8) The wireless charging system according to claim 8, wherein the portable electronic device wirelessly transmits the data, and the wireless charging device wirelessly receives the data and processes the received data. ### Claim 16 (depends on 15) The wireless charging system according to claim 15, wherein the wireless charging device comprises: a first transmitting/receiving unit configured to receive a high-frequency AC current to generate the magnetic energy, and wirelessly receive the data; a first fixing unit disposed on a rear surface of the first transmitting/receiving unit and configured to generate the designated magnitude or more of attractive force; and a data processing unit configured to process the data received through the first transmitting/receiving unit. ### Claim 17 (depends on 16) The wireless charging system according to claim 16, wherein the data processing unit serves as a reproducing unit configured to output the data received through the first transmitting/receiving unit. ### Claim 18 (depends on 16) The wireless charging system according to claim 16, wherein the data processing unit serves as a backup unit configured to store the data received through the first transmitting/receiving unit. ### Claim 19 (depends on 16) The wireless charging system according to claim 16, wherein the first transmitting/receiving unit comprises a primary coil. ### Claim 20 (depends on 8) The wireless charging system according to claim 8, wherein the transmitting unit comprises: a switching unit configured to change an output path of the data; and a modulation unit configured to modulate the data transmitted through the switching unit and provide the modulated data to the second transmitting/receiving unit. ### Claim 21 (depends on 8) The wireless charging system according to claim 8, wherein the second transmitting/receiving unit comprises a secondary coil. ### Claim 22 (depends on 8) The wireless charging system according to claim 8, wherein the data comprises multimedia data or video data.