Other

Zenith Electronics Corporation

Moon Key Lee

Dong Hyun Lee

Ronald B Lee

In Sun Lee

Raymond C Hauge

Paul A Snopko

Jong Guk Kim

Frank C Templin

David L Blanchard

Provided is a glasses-type display with a small volume and a wide field of view, which can adjust the distance between the eyes and the image formed by light reflected from a concave mirror with an anisotropic convex lens having a converging refractive index corresponding to the rotation of a polarization axis.

Eye glasses-type transparent display using mirror

An electronic keyboard using a camera, and more particularly, to an electronic keyboard using a camera, which includes a retroreflective film, a light source for irradiating light on to the retroreflective film, a camera for capturing light of a light source retroreflected from the retroreflective film, and an image processing means that analyzes the captured image to track the position of the reflected light source, to find a depressed state of the keyboard, and to generate a sound of an instrument corresponding to the depressed state.

Image capturing device and electronic keyboard using the image capturing device

A compact ballpoint pen in which a bar of a push button is split into left and right bars and thus an ink cartridge can be inserted into a space between the split bars. Thus, the length of a ballpoint pen is reduced.

Compact ballpoint pen

A method of generating a semi transparent QR code in which a QR code image and an ordinary color background image are synthesized, and a QR code detection method of separating a QR code and a normal color image from an image obtained by capturing a semi transparent QR code are disclosed.

Translucent mark, method for synthesis and detection of translucent mark, transparent mark, and method for synthesis and detection of transparent mark

Pointing device like mouse or joystick comprises camera for capturing the display screen and image processing means for recognizing and tracking the pointing cursor icon or mark from the captured image and producing the pointing signal. The pointing device of present invention can be used with any type of display without and additional tracking means like ultra sonic sensor, infrared sensor or touch sensor. The pointing device of present invention includes mark outputting portion, camera portion for capturing the said mark outputting portion and image processing portion for recognizing the said mark outputting portion from the captured image and producing the pointing signal.

Pointing device using camera and outputting mark

A fast and stable image processing system detecting a mark from a polarization image is described. The system includes a camera capturing separately a first polarization image and a second polarization image, and an image processing device outputting a difference image of the first polarization image that is captured and the second polarization image that is captured.

Image processing system using polarization difference camera

A fast and stable image processing system detecting a mark from a differential image is described. The system includes a display displaying a first image and a second image alternately. A camera captures the first image that contains a mark and the second image. An image processing device detects the mark from a non-zero pixel region of a difference image between the first image that is captured and the second image that is captured.

Image processing device using difference camera

The present invention relates to an image processing system for pointing or making an augmented reality image by selectively capturing a left or right image of a stereo image of a 3D display, and detecting a mark from the captured image.

Image processing system based on stereo image

The present invention relates to the color communication system so that human eye does not sense flicker. Communication using 3 primary color light pulses is faster than the communication system using only one white color pulse. Illumination light source or color display can be used for such color communication system.

Flicker-free color visible light communication system

Percussion instrument using touch switch. Electric current flows by touching conducting pad with conducting stick. The microcontroller in main portion detects the said electronic current and recognizes which pad is hit by which stick to generate the sound of drum of hit pad. The stick portion may further contain vibration sensor and in this case the microcontroller recognizes the hit impact strength of stick on pad by analyzing the output of vibration sensor to control the volume of sound of drum. The information about playing drum recognized by microcontroller can be transmitted to outer system like PC by communication portion in main portion or used to generate the sound of drum by sound generation portion in main portion and if the communication portion is contained in main portion then the sound generation portion may be omitted.

Percussion instrument using touch switch

A high definition television transmitting system includes a source of high definition analog RGB video signals which are converted to corresponding digitally encoded signals and thereafter compressed by a video encoder to a six megahertz bandwidth. The compressed data is formatted by a transmitter and processed in accordance with a Reed-Solomon error control system for broadcast as an NTSC-type broadcast signal. A high definition television receiver includes a high definition signal receiver coupled to the transmitter by a transmission link. The receiver extracts the compressed video, audio and ancillary data signals and applies a Reed-Solomon error correction thereto. The compressed video data is reconstructed by a video decoder and processed for high definition display. A high definition digital video tape recorder is coupled to the transmitter by an interface and format converter facilitating both recording and playback functions of the digital video tape recorder while maintaining the Reed-Solomon error control. The format converter provides compatibility between the high definition transmitter and the digital video tape recorder.

Growing community of inventors

Seoul, South Korea

Moon Key Lee