Samsung Electronics Co., Ltd.

Seoul National University

Hee-Won Jung

Kyung-Woo Lee

Kang-Ho Byun

Hyuk-Choon Kwon

Yun-Je Oh

Jun-Ho Koh

Nam-Yun Kim

Soo-Yeon Jung

Sang-Wook Oh

Ho-Dong Kim

Jae-woo Ko

Keum-Su Song

Seong-Taek Hwang

Se-Ho Park

Sang-Ho Kim

Sergey Zhidkov

Gi-Sang Lee

Sang-Mook Lee

Hyun-Soo Kim

Hae-Young Jun

Jae-Won Moon

Ho-Seong Lee

Bo-seok Moon

Soo-Kyun Kim

Sung-Cheol Kim

Eun-Tae Won

Sung-Dae Cho

Nam-Ik Cho

Sang-Hwa Lee

Seong-Jong Ha

Sung-dae Cho

Joon-Ho Park

Hyun-young Kim

Tae-hwan Wi

Seung-Gun Park

Chong-Min Lee

Young-Min Jeong

Seung-Woo Han

Seung-Hoon Park

Jae-Seung Son

Yong-hoon Lee

Noh-Gyoung Kang

Tae-hyun Kim

Dong-Wook Kwon

Min-Cheol Ha

Hae-Seog Jo

Jae-Sung Han

Jong-Hee Kim

Sang-Wook Kwon

Jun-ho Koh

Jong-moon Eun

Jun-Ho Ko

Bo-Seok Moon

Do-Young Kim

Ki-Hyun Kim

Young-Min Lee

Ji-Hoon Kim

Tae-Han Bae

Seung-min Ryu

Dong-jin Park

Tae-Hwa Hong

Jong-Man Kim

Jin-Hyoung Park

Byung-Jun Son

Sung-Kweon Park

Joon-Il Kim

Kil-Soo Ko

Dong-Chang Lee

Jung-Rim Kim

Hong-Kweun Kim

Dong-yun Shin

Myoung-su Baek

Ki-jae Do

Seok-Jin Won

Moon-young Kim

Soon-Nam Kim

Seung-Soon Jang

Sea-Young Lee

Soon-nam Kim

An-kee Lim

Moon-Soo Park

Young-sub Shin

Do-kwan Lee

Soon-Gil Hong

A method of controlling a wireless power receiver. The method includes receiving, by a power receiver, power from a wireless power transmitter; receiving, from the wireless power transmitter, a time set value that is set for checking cross connection; in response to receiving the time set value, generating a power variation in the wireless power receiver by converting a load status from a first load status to a second load status; and maintaining the second load status for a time corresponding to the received time set value.

Method of generating load variation for detecting wireless power receiving unit in wireless charging, and wireless power receiving unit

A wireless power receiver is for receiving power from a wireless power transmitter, the wireless power receiver may include at least one of: resonant circuitry; communication circuitry; and a controller configured to at least one of: enable a charging function to receive, through the resonant circuitry from the wireless power transmitter, first power for charging the wireless power receive, transmit, through the communication circuitry, a first signal indicating complete charge to the wireless power receiver while receiving the first power, receive, through the communication circuitry, a first charging function control signal that disables a charging function from the wireless power transmitter, based on the receiving of the first charging function control signal, disable the charging function, after disabling the charging function, identify that charging is required, transmit, through the communication circuitry, a second signal including information which is, by the wireless power receiver, set based on identifying that the charging is required to the wireless power transmitter, receive, through the communication circuitry, a second charging function control signal, and based on the receiving of the second charging function control signal, enable the charging function without outputting the indication related to the charging.

Wireless power transmitter and wireless power receiver, and operation methods therefor

Methods and apparatuses are provided for controlling power transmission in a power transmitter. Voltage information including a minimum voltage, a maximum voltage, and a first voltage, is received from each of a plurality of power receivers. Power is transmitted to the plurality of power receivers based on the voltage information. A respective report about a power reception condition is received from each of the plurality of power receivers while transmitting the power. Each respective report includes a measured voltage at a corresponding power receiver of the plurality of power receivers. A power receiver is selected from among the plurality of power receivers based on the received reports. An amount of the power is adjusted by reducing a difference between a first voltage of the selected power receiver and a measured voltage of the selected power receiver.

Method and power transmitter for controlling power transmission

A method for transmitting wireless power in a wireless charging system and a wireless power transmitting unit (PTU) are provided. The method for transmitting wireless power in a wireless charging system includes receiving information related to a voltage from each of a plurality of power receiving units (PRUs), identifying a voltage ratio of each of the plurality of PRUs based on the received information where the voltage ratio is a current voltage relative to a first voltage, determining a PRU among the plurality of PRUs based on the identified voltage ratio, and adjusting transmission power according to a voltage setting value of the determined PRU.

Method for transmitting wireless power in wireless charging system including a wireless power transmitting unit and wireless power receiving unit

A method for providing interaction information, such as, for example, settlement information, by which a device provides the settlement information to a counterpart device, includes displaying an image which relates to an item to be used for performing the interaction, such as, for example, a credit card image of a credit card of a user of the device, on a lock screen of the device, and receiving a touch input from the user with respect to the credit card image. In the method, settlement information which corresponds to the touched credit card image is used for performing a settlement via the device.

Apparatus and method for providing interaction information by using image on device display

A control method of a wireless power transmitter and a wireless power transmitter. The method includes transmitting a first power with a first cycle; transmitting a second power with a second cycle, wherein the second cycle is greater than the first cycle; when a wireless power receiver is placed within a charging area and is detected by the first power, upon detecting the wireless power receiver by the first power, transmitting a third power to drive the wireless power receiver to transmit a search signal to the wireless power transmitter; and when the wireless power receiver is placed within the charging area and is not detected by the first power, using the second power to detect the wireless power receiver and drive the wireless power receiver to transmit the search signal to the wireless power transmitter.

Method and apparatus for providing wireless charging power to a wireless power receiver

Disclosed is a method for photographing a panoramic image including the steps of recognizing movement of a corresponding photographing apparatus by comparing a current real-time input image with a previous image through a motion estimation mechanism with exposure compensation, determining a time to photograph each next picture by determining whether movement in a photography direction reaches a preset threshold value, and photographing each next picture by manual or automatic operation at the determined time.

Method for photographing panoramic image by preventing excessive perpendicular movement

A method of transmitting a signal by a wireless power transmitter in a wireless charging system, wireless power transmitter, and a wireless power receiver are provided. The method includes receiving, from a wireless power transmitter, a first beacon power for a first duration time in every first period; receiving, from the wireless power transmitter, a second beacon power for a second duration time in every second period; if the wireless power receiver determines that an extension of the second beacon power is required, generating load changes while receiving the second beacon power for the second duration time; in response to the generated load changes, continually receiving, from the wireless power transmitter, the second beacon power until a predetermined third duration time, wherein the predetermined third duration time is determined before the second beacon power is transmitted by the wireless power transmitter; and transmitting an advertisement signal to the wireless power transmitter while receiving the second beacon power for the predetermined third duration time.

Method for transmitting signal by wireless power transmitter in wireless charging system, wireless power transmitter and wireless power receiver

A method and apparatus for controlling a wireless power transmitter configured to transmit power to a wireless power receiver is provided. The method includes receiving a first signal from the wireless power receiver, wherein the first signal comprises load detection indication bits, detecting a change in load of the wireless power transmitter caused by placement of the wireless power receiver in a charging area of the wireless power transmitter, based on the load detection indication bits, and determining whether to transmit a second signal to the wireless power receiver based on detecting the change in load of the wireless power transmitter.

Wireless power transmitter for excluding cross-connected wireless power receiver and method for controlling the same

A method for transmitting an electronic key of a device is provided. The method includes transmitting a user command for providing an electronic key to another device, providing a User Interface (UI) for setting a use condition of the electronic key when the user command is received, and transmitting the use condition information set through the UI to the other device together with the electronic key.

Device and method for transmitting electronic key thereof

An apparatus and method are provided for permitting a wireless power receiver to be charged by a wireless power transmitter. The method includes generating a Power Receiving Unit (PRU) control signal including permission information indicating charging permission for the wireless power receiver; and transmitting the PRU control signal to the wireless power receiver.

Wireless power transmitters and receivers, and method for permitting a wireless power receiver by a wireless power transmitter

A method for controlling a wireless power transmitter is provided herein. The method includes outputting a first power for detecting a change in a load impedance of the wireless power transmitter; detecting the change in the load impedance of the wireless power transmitter; outputting a second power for communicating with a wireless power receiver; receiving, from the wireless power receiver, a first signal within a preset time period after detecting the change in the load impedance; determining whether a reception intensity of the first signal is less than or equal to a threshold; and based on determining that the reception intensity of the first signal is less than or equal to the threshold, excluding the wireless power receiver from a wireless power network of the wireless power transmitter, the wireless power receiver being outside of the charging range of the wireless power transmitter.

Wireless power transmitter, wireless power receiver, and control methods thereof

Disclosed is a control method for transmitting charging power to a wireless power receiver in a wireless power transmitter, including receiving an advertisement signal from a wireless power receiver, the advertisement signal including a handle value and a preset universally unique identifier (UUID), identifying a value assigned to a characteristic by adding a predetermined number to the handle value, transmitting a connection request signal to the wireless power receiver for establishing a communication connection with the wireless power receiver, in response to the advertisement signal, receiving, from the wireless power receiver, static information of the wireless power receiver over the communication connection, and transmitting, based on the static information, a control signal including permission information to the wireless power receiver.

Wireless power transmitter, wireless power receiver and control method thereof

A method and an apparatus are provided for determining a cross connection during wireless charging. The method includes transmitting a first power to a plurality of wireless power receivers, based on first voltage setting information of a first wireless power receiver from among the plurality of wireless power receivers; determining to identify whether the wireless power transmitter is cross-connected with a second wireless power receiver from among the plurality of wireless power receivers; receiving second voltage setting information from the second wireless power receiver, while transmitting the first power to the plurality of wireless power receivers; transmitting a second power the plurality of wireless power receivers based on the second voltage setting information of the second wireless power receiver; and receiving measured voltage information from the second wireless power receiver, while transmitting the second power to the plurality of wireless power receivers.

Method for determining cross connection in wireless charging

Methods and apparatuses are provided for controlling a wireless power transmitter. First power for charging a first wireless power receiver is transmitted. Demand power information of a second wireless power receiver is received. The demand power information includes a maximum power for the second wireless power receiver. A controller identifies whether the wireless power transmitter is capable of providing the maximum power. A power adjustment command is transmitted to the second wireless power receiver, if the wireless power transmitter is not capable of providing the maximum power. The power adjustment command requests to reduce a magnitude of power to be received by the second wireless power receiver to a level within a range that the wireless power transmitter is capable of supporting. Second power for charging the first wireless power receiver and the second wireless power receiver is transmitted based on at least the reduced magnitude of power.

Method for distributing wireless charge power for multiple wireless power receivers

Growing community of inventors

Gyeonggi-do, South Korea

Hee-Won Jung