Patent Number: 6,166,936

Title: Non-directional frequency generator

Abstract: A non-directional frequency generator capable of minimizing frictional noise generated due to a mechanical rotation mechanism, including: a plurality of brushes connected with a direct current power source; and a commutator which converts a direct current waveform inputted from one of the brushes into an alternating current waveform by a rotational movement thereof, having a groove formed on an outer circumference thereof slanted inward to the commutator so as to reduce friction with the brushes during the rotation thereof.

Inventors: Han; Yong-woon (Kunpo, KR), Jang; Seong-deog (Suwon, KR), Kang; Kwang-seok (Suwon, KR), Sung; Han-jun (Seoul, KR)

Assignee: SamSung Electronics Co., Ltd.

International Classification: H02M 7/42 (20060101); H02M 7/60 (20060101); H02M 007/60 ()

Expiration Date: 12/26/2017