Samsung Electronics Co., Ltd.

Seong-Min Seo

In-Kuk Yun

Kang-nam Kim

Po-Ra Kim

In-kuk Yun

Jeong-seok Lee

Jeong-Seok Lee

Jeong-Seok Choi

Do-Young Rhee

Se-mi Park

A pen-type input device and method for sending positional input to a host device, in which a first switch, located on the pen's tip is provided to input character strokes in a character input mode and move a mouse cursor in a mouse mode, a second switch is provided to perform a mouse left-click operation in the mouse mode, and a third switch is provided to switch an input mode of the pen-type input device.

Pen type input device and method for character input and mouse functions

A stacked memory device includes a master semiconductor die and a plurality of slave semiconductor dies stacked on the master semiconductor die. The master semiconductor die includes a first power line coupled to a first power supply voltage, a second power line coupled to a second power supply voltage, a memory device coupled to the first power line, and a data input/output buffer coupled to the second power line. Each of the plurality of slave semiconductor dies includes third and fourth power lines and a memory device coupled to the third power line. The third power line is electrically connected to the first and fourth power lines, and the fourth power line is electrically disconnected from the second power line. The data input/output buffer buffers data communicated between an external device and the memory devices included in the master semiconductor die and the plurality of slave semiconductor dies.

Stacked memory devices, and memory packages and memory systems having the same

A multi-functional pen apparatus and a method for using the multi-functional pen are provided. The method includes switching an operation mode of the multi-functional pen to a pen mode according to a predetermined key input; receiving pen data in the switched pen mode; and transmitting the pen data to a portable terminal, wherein the portable terminal transmits a call based on the transmitted pen data.

Multi-functional pen and method for using multi-functional pen

A display device and method having a pattern are provided. The display device includes a plurality of color filters which correspond to one or more sub-pixels constituting a pixel of the display device; and a black matrix formed between the plurality of color filters, wherein the one or more sub-pixels include one or more position marks indicating an absolute position of each pixel of the display device and one or more error correction marks for correcting an error when the one or more position marks are detected.

Display device having pattern and method of detecting pixel position therein

An apparatus and methods for recognizing an image with an increased image recognition rate are provided. The apparatus includes a plurality of illuminators for illuminating a surface. The apparatus also includes an image sensor for outputting an image frame obtained by converting an optical image of the surface into an electrical signal. The surface is illuminated one of the plurality of illuminators. The apparatus further includes a switch for selecting any of the plurality of illuminators for illuminating the surface. The apparatus additionally includes a controller for receiving the image frame from the image sensor, determining whether the image frame has a region of reflected light, and controlling the switch to select another of the plurality of illuminators to illuminate the surface when the image frame has the region of reflected light.

Growing community of inventors

Hwaseong-si, South Korea

Seong-Min Seo