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公开(公告)号：US20230146752A1
公开(公告)日：2023-05-11
申请号：US18153049
申请日：2023-01-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Dongzo KIM , Mincheol HA , Kihyun KIM , Yunjeong NOH , Keyic SON , Taehyeon YU , Hyungkoo CHUNG
CPC classification number: H01F27/2885 , H02J50/402 , H02J50/70 , H02J50/10 , H02J50/005 , H01F27/2823
Abstract: A wireless power transmission apparatus is provided. The wireless power transmission apparatus includes a first coil including a first conductive wire area formed of an arrangement of conductive wires, and a first opening area surrounded by the first conductive wire area, a second coil including a second conductive wire area formed of an arrangement of conductive wires, and a second opening area surrounded by the second conductive wire area, a first overlapping area formed by overlapping a portion of the first conductive wire area with a portion of the second opening area, and a first shielding member disposed on at least a portion of the first overlapping area, wherein the first shielding member may be configured to at least partially block an electromagnetic field generated by the second coil interfering in the first conductive wire area.
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2.发明公开公开(公告)号：US20230208208A1
公开(公告)日：2023-06-29
申请号：US18178545
申请日：2023-03-06
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yunjeong NOH , Kihyun KIM , Dongzo KIM , Jihye KIM , Keyic SON , Taehyeon YU , Kyungmin LEE , Hyungkoo CHUNG , Mincheol HA
CPC classification number: H02J50/80 , H02J50/402 , H02J50/12 , H02J50/90 , H01F38/14
Abstract: An electronic device includes: coils; power conversion circuits configured to receive direct current (DC) power, convert the DC power into alternating current (AC) power, and output the AC power to the coils; and a processor. The processor is configured to: apply to the coils a ping signal of which a ping power section is repeated periodically and which has a plurality of ping power levels increasing in phases; confirm an SSP signal responding to the ping signal; and perform wireless power transmission by the coils on the basis of a ping power level in which the SSP signal is confirmed from among the plurality of ping power levels.
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公开(公告)号：US20230042780A1
公开(公告)日：2023-02-09
申请号：US17880830
申请日：2022-08-04
Applicant: Samsung Electronics Co., Ltd.
Inventor： Mincheol HA , Dongzo KIM , Kyungmin LEE , Kihyun KIM , Yunjeong NOH , Keyic SON , Taehyeon YU , Hyungkoo CHUNG
Abstract: Disclosed is a method for controlling an electronic device electrically couplable to an external electronic device through a connector and capable of transmitting/receiving wireless power, the method including: an operation of identifying electrical connection to the external electronic device; an operation of receiving power from the external electronic device through a short-range communication module; an operation of controlling a mode switch module based on the received power and transmitting a signal regarding a power transmission mode to the external electronic device through the connector; an operation of receiving direct-current power from the external electronic device through the connector after transmitting the signal regarding the power transmission mode; and an operation of generating an electromagnetic field for wireless power transmission through the wireless power transmission/reception module, based on the received direct-current power.
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4.发明公开公开(公告)号：US20230412001A1
公开(公告)日：2023-12-21
申请号：US18190675
申请日：2023-03-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dongzo KIM , Mincheol HA , Taehyeon YU , Kyungmin LEE , Kihyun KIM
CPC classification number: H02J50/12 , H02J50/80 , H02M1/0077
Abstract: An example wireless power transmitter may include a transmission coil, a converter configured to output a driving voltage, an inverter configured to output AC power to the transmission coil using the driving voltage, and a controller. The controller may be configured to identify a first voltage at one point within the wireless power transmitter while power is wirelessly transmitted through the transmission coil. The controller may be configured to perform at least one operation for providing a first packet for reduction in modulation depth of a wireless power receiver to the wireless power receiver based on a peak-to-peak value identified to be larger than a first reference value according to the first voltage.
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Patent Agency Ranking
公开(公告)号：US20220231544A1
公开(公告)日：2022-07-21
申请号：US17578007
申请日：2022-01-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Taehyeon YU , Kihyun Kim , Dongzo Kim , Jihye Kim , Yunjeong Noh , Keyic Son , Kyungmin Lee , Hyungkoo Chung , Mincheol Ha
Abstract: According to various embodiments, there may be provided an electronic device comprising a coil, an inverter configured to provide power to the coil, a power providing circuit, a communication circuit, and a control circuit, wherein the control circuit is configured to control the power providing circuit to apply a first voltage to an input terminal of the inverter, the inverter outputting a first magnitude of power based on the application of the first voltage, control the power providing circuit to apply a second voltage lower than the first voltage to the input terminal of the inverter, based on the application of the first voltage being maintained for a specific time, identify, through the communication circuit, a first control error packet from the wireless power receiving device, while applying the second voltage, and identify a first value included in the first control error packet.
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公开(公告)号：US20140062863A1
公开(公告)日：2014-03-06
申请号：US14012060
申请日：2013-08-28
Applicant: Samsung Electronics Co., Ltd.
Inventor： Taehyeon YU , Sejeong NA , Haeyoung PARK , Yongchan KEH
IPC: G06F3/00
CPC classification number: G06F3/005 , G06F3/0418 , G06F3/0425
Abstract: Provided are a method and apparatus for setting an electronic blackboard system. In response to a user input to a control apparatus requesting setting of the electronic blackboard, sensitivity of an IR camera is set so that visible rays are detected. A projector projects an image with a presentation region and a first guider therein for alignment. The IR camera transmits a first captured image of the presentation region, including at least a portion of the first guider, to the control apparatus. The projector is then controlled to project to the screen at least a portion of a second guider corresponding to the first guider in the first image received from the IR camera. The user may then make positional adjustments to the IR camera or projector using the second guider.
Abstract translation: 提供一种用于设置电子黑板系统的方法和装置。 响应于用户输入到请求设置电子黑板的控制装置，设置IR相机的灵敏度以便检测可见光线。 投影仪投射具有呈现区域的图像和其中的第一引导件用于对准。 IR摄像机将包括至少一部分第一引导器的呈现区域的第一拍摄图像发送到控制装置。 然后，控制投影仪，将从红外相机接收的第一图像中的与第一导向器对应的第二导引器的至少一部分投影到屏幕。 然后，用户可以使用第二导向器对IR相机或投影仪进行位置调整。
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公开(公告)号：US20230361598A1
公开(公告)日：2023-11-09
申请号：US18351848
申请日：2023-07-13
Applicant: Samsung Electronics Co., Ltd.
Inventor： Keyic SON , Kihyun KIM , Dongzo KIM , Jihye KIM , Yunjeong NOH , Taehyeon YU , Kyungmin LEE , Hyungkoo CHUNG , Mincheol HA
CPC classification number: H02J50/10 , H02J50/90 , H02J50/80 , H04W52/0251
Abstract: An electronic device is provided. The electronic device includes a wireless transmission circuit for transmitting power to a power reception device, and a first processor. When entering a power reduction mode, with respect to a first voltage and a first current being output from the wireless transmission circuit, the first processor includes, in case that the power reception device is in an align state, lower a voltage of the wireless transmission circuit to a second voltage lower than the first voltage and lower a current flowing in the electronic device to a second current lower than the first current, and, in case that the power reception device is in a misalign state, lower a voltage of the electronic device to a third voltage lower than the second voltage and lower a current flowing in the wireless communication circuit to a third current lower than the second current.
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公开(公告)号：US20230216353A1
公开(公告)日：2023-07-06
申请号：US18119543
申请日：2023-03-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Mincheol HA , Kihyun KIM , Dongzo KIM , Jihye KIM , Yunjeong NOH , Keyic SON , Taehyeon YU , Kyungmin LEE , Hyungkoo CHUNG
CPC classification number: H02J50/402 , H02J50/12 , H02J50/90 , H02M1/0003
Abstract: An electronic device includes a plurality of coils, power conversion circuits, demodulation switches, and a processor. The power conversion circuits convert DC power into AC power, and output the AC power to the plurality of coils, respectively. The demodulation switches selectively connect the plurality of coils to ground. The processor selects at least one coil from among the plurality of coils, and controls an on/off state of the demodulation switches to connect or disconnect at least one remaining coil except for the selected at least one coil among the plurality of coils to the ground. The processor controls the power conversion circuits to output the AC power to the selected at least one coil and demodulates a signal of the selected at least one coil to identify information from an external electronic device disposed adjacent to a selected at least one coil based on the demodulation.
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公开(公告)号：US20230179028A1
公开(公告)日：2023-06-08
申请号：US18094066
申请日：2023-01-06
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyungkoo CHUNG , Dongzo KIM , Mincheol HA , Yusu KIM , Kihyun KIM , Yunjeong NOH , Keyic SON , Taehyeon YU , Kyungmin LEE
Abstract: An electronic device capable of transmitting and receiving wireless power may include a wireless power transfer (WPT) coil and a processor configured to be operatively connected to the WPT coil, wherein the processor may perform control to transmit a first ping signal to an external object through the WPT coil, may identify a waveform of a current or voltage measured while or after transmitting the first ping signal, may obtain a Q factor, based on the identified waveform, may control a power transmission operation by determining that the external object is a foreign object or includes the foreign object and is positioned on a center of the WPT coil when the obtained Q factor is less than a predetermined Q factor, may transmit a second ping signal to the external object through the WPT coil when the obtained Q factor is equal to or greater than the predetermined Q factor, may identify a waveform of a current or voltage while or after transmitting the second ping signal, may identify inductance measured at both ends of the WPT coil, based on the identified waveform, and may control the power transmission operation by determining that the external object is the foreign object or includes the foreign object and is positioned in a surrounding area of the WPT coil, based on the measured inductance.
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