Lg Innotek Co., Ltd.

Goldstar, Co., Ltd.

Chung Sik Park

Jae Hyun Ahn

Jae Hwa Kim

Chul Jun Choi

Seung Yul Shin

Heun Gun Shin

Duk Nam Kim

Disclosed is a printed circuit board including a base insulating layer, an upper insulating layer formed on the base insulating layer, a lower insulating layer formed under the base insulating layer. The upper insulating layer has a plurality of first vias filled in the first through holes, respectively, and the lower insulating layer has a second via filled in one second through hole formed through a top and a bottom surface and commonly connected with the first vias.

Printed circuit board and method of fabricating the same

A printed circuit board according to the embodiment includes an insulating layer; a first pad on a top surface of the insulating layer; a second pad on a bottom surface of the insulating layer; and a via formed in the insulating layer and having one surface connected to the first pad and an opposite surface connected to the second pad, wherein the via includes a plurality of via parts which are at least partially overlapped with each other.

Printed circuit board and method of manufacturing the same

A remote control circuit for a system wherein several terminal units are operatively connected to a single main unit, enabling the main unit to be controlled by the terminal units. The remote control circuit includes a remote control receiving unit equipped in a TV system and adapted to receive and process a remote control signal from a remote control transmitter, and a TV control microprocessor adapted to analyze the remote control receiving unit so as to output a VCR remote control signal and TV control signal based on code information of the remote control signal. The VCR control signal is transmitted to a VCR system by a VCR control signal transmitter, via a radio frequency cable. The VCR control signal includes a control signal converter and a pulse width modulator. In the VCR system, original VCR control signal is recovered, by a band-pass filter and a rectifier. The VCR control signal is converted into code information, by an A/D converter, which code information is applied to a VCR control microprocessor, so as to control the VCR system.

Remote control circuit for video cassette tape recorder

Growing community of inventors

Seoul, South Korea

Chung Sik Park