Samsung Electronics Co., Ltd.

Lg Innotek Co., Ltd.

Daegu Gyeongbuk Institute of Science and Technology

Min Seok Kang

Keal Doo Moon

Sang Hoon Lee

Yong Noh Lee

Ellen Park

Eun Yeob Kang

Hee Jae Shin

The present invention relates to a neuro-stimulator, and more particularly, to a rotational triboelectric nanogenerator for a neuro-stimulator providing, as a device that may directly utilize nerve stimulation triboelectricity generated by rotational energy for nerve electrical stimulation, a device that may adjust waveforms and stimulation parameters of electricity generated during frictional contact through a combination of various materials with triboelectric properties and patterns of materials and electrodes, implement various nerve stimulation parameters by adjusting an external rotational speed or a distance between friction layers, does not require complicated circuits or voltages and batteries to drive the batteries, and may be driven through relatively small volume, inexpensive materials, a simple structure, and a simple operation method.

Rotational triboelectric nanogenerator for neuro-stimulator

One embodiment discloses an electronic device including a first acquisition unit which outputs first motion information about a detection target in a first detection region, a second acquisition unit which outputs second motion information about the detection target in a second detection region, and a control unit which executes an instruction according to the first motion information and the second motion information, wherein the first detection region and the second detection overlap at least partially.

Electronic device

A preamble transmission method for a wireless communication system is provided for improving the probability of successful transmission and reducing unnecessary retransmission power consumption. The preamble transmission method of the present invention calculates an initial transmission power; transmits a preamble with the initial transmission power through a random access channel; if an acknowledgement is received in response to the preamble, starts transmission of data; and if no acknowledgement is received in response to the preamble&#x2014;calculates a retransmission power, and retransmits the preamble with the retransmission power.

Preamble transmission method for wireless communication system

Growing community of inventors

Seoul, South Korea

Min Seok Kang