E Ink Holdings Inc.

Chuen-Jen Liu

Yu-Ming Lee

Jia-Hong Xu

Chi-Mao Hung

Li-Wei Chou

Liang-Yu Yan

Yi-Jhou Shen

Chih-Jen Wu

The present disclosure relates to a voltage regulating circuit, including an impedance circuit, a control unit and a power supply circuit. The impedance circuit has a first node and a second node, wherein the second node is electrically coupled to a load. The control unit is electrically coupled to the first node and configured to control a first voltage value of the first node according to a control signal. An input terminal of the power supply circuit is electrically coupled to the second node. An output of the power supply circuit is electrically coupled to the load. The power supply circuit is configured d to output a control voltage to the load according to a second voltage value of the second node.

Voltage regulating circuit, voltage regulating method and display device

A smart display card and an operation method thereof are provided. The smart display card includes a connection interface, a security chip, a processing chip, and a display. The connection interface receives a power signal and a data signal provided by an external card reader when the smart display card is connected to the external card reader. The security chip is coupled to the connection interface and receives the power signal and the data signal. The security chip complies with a first communication protocol. The processing chip is coupled to the connection interface and receives the power signal and the data signal. The processing chip complies with a second communication protocol different from the first communication protocol. The display is coupled to the processing chip. The processing chip drives the display based on the power signal and the data signal.

Smart display card and operation method thereof

A wireless power supply apparatus including a signal transmitting terminal and a signal receiving terminal is provided. The signal transmitting terminal encodes a digital data into a control signal and transmits a power supply signal in a manner of wireless communication according to the control signal. The signal receiving terminal receives the power supply signal from the signal transmitting terminal in the manner of wireless communication. The signal receiving terminal converts the power supply signal into a power source signal and a data signal and decodes the data signal into the digital data.

Wireless power supply apparatus

A proximity smart card including a card body, a first integrated circuit, a second integrated circuit, and a display element is provided. The first integrated circuit is disposed on the card body. The first integrated circuit is configured to receive a request command from the card reader, and output a first response command to the card reader. The second integrated circuit is disposed on the card body. The second integrated circuit is configured to receive the request command from the card reader, and delay an output of a second response command to the card reader. The display element is disposed on the card body. The second integrated circuit transmits to-be-displayed information to the display element. The display element displays an image according to the to-be-displayed information. In addition, a method for operating a proximity smart card is also provided.

Proximity smart card and method for operating proximity smart card

An energy harvesting device and a display device are provided. The energy harvesting device is configured to generate a power signal and the energy harvesting device includes a slot antenna. The slot antenna comprises a first section and a second section. The first section of the slot antenna is a linear shape and comprises an opening end, and the second section of the slot antenna is a bending shape and comprises a plurality of continuously bending corners.

Energy harvesting device and display device

An antenna device including an antenna radiator and a feed line layer is provided. The antenna radiator is disposed on a first surface of a detachable substrate. The antenna radiator receives a microwave signal of at least one frequency band. The feed line layer is disposed on a second surface of a control circuit board. The feed line layer includes a signal feed line. The signal feed line is coupled to the antenna radiator through a connection point. The connection point is located on one side of the control circuit board. The detachable substrate and the control circuit board are arranged to have an angle between the first surface and the second surface. In addition, an electronic apparatus is also provided.

Antenna device and electronic apparatus

An electronic tag including an electronic paper display, a driving circuit, and an energy harvesting device is provided. The electronic paper display is configured to display tag information. The driving circuit is coupled to the electronic paper display and includes a voltage detecting circuit. The energy harvesting device is coupled to the driving circuit and configured to generate a first power signal. The voltage detecting circuit is configured to receive the first power signal. When a voltage value of the first power signal is higher than a threshold voltage value, the voltage detecting circuit outputs the first output power signal so that the driving circuit enables the electronic paper display by the first output power signal. In addition, a driving method of the above electronic tag is also provided.

Electronic tag and driving method thereof

An electronic paper display apparatus, a signal transmission system and a method thereof are provided. The electronic paper display apparatus is configured to transmit an encrypted signal. The electronic paper display apparatus includes an electronic paper display panel and a display driver. The electronic paper display panel is configured to display a first image or a second image. The display driver is electrically coupled to the electronic paper display panel and configured to output a driving signal to the electronic paper display panel. The display driver drives the electronic paper display panel to alternately display the first image and the second image for transmitting the encrypted signal by using the driving signal during a signal transmission period.

Electronic paper display apparatus, signal transmission system and method thereof

An electronic paper apparatus including a communication module and a control module is provided. The communication module receives an electrical signal and generates a power voltage according to the electric signal. The communication module wakes up a controller during a first period of a work period by using the power voltage. The control module is electrically connected to the communication module, and includes the controller and an electronic paper display. The control module establishes a communication connection with the communication module during a second period of the work period. The power circuit module generates a driving voltage according to the power voltage to drive the electronic paper display to display image information according to the driving voltage during a display period. The first period and the second period are two continuous time intervals forming the work period. Furthermore, a driving method of the electronic paper apparatus is also provided.

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Hsinchu, Taiwan

Chuen-Jen Liu