Samsung Electronics Co., Ltd.

Dong-eui Shin

Chan-young Moon

Woo-Jong Cho

Mun-cheol Choi

Ki-oh Jung

Myung-won Park

Seung-Han Lee

Cheol-eun Jang

Jae-kyu Shim

Jong-ho Baek

Jae-heung Park

Du-seung Oh

An apparatus to detect a direction or velocity of a movement of equipment by using a single sensor. The apparatus includes a conversion unit that converts sensed information obtained from the single sensor into a voltage value corresponding to the movement of the equipment, a determination unit that determines whether one of a first interrupt and a second interrupt occurs, the first interrupt occurring when the converted voltage value reaches a threshold value and the second interrupt occurring when a preset amount of time passes from a time when the single sensor starts operating, and a calculation unit that calculates one of the direction and the velocity of the movement of the equipment by using voltage information at time s when the first interrupt or the second interrupt occurs and voltage information at a predetermined time before the times when the first interrupt or the second interrupt occurs.

Method and apparatus to detect direction and velocity of movement of equipment by using single sensor

A digital photographing apparatus having low power consumption includes a lens unit, an encoder sensor configured to detect a rotational state of the lens unit, a power supply controller configured to control power supply such that an operation of turning on the encoder sensor to generate a detection signal and an operation of turning off the encoder sensor are repeatedly performed, and a determiner configured to determine the rotational state of the lens unit from the detection signal.

Digital photographing apparatus and method of controlling the same

An apparatus for transferring an optical element, the apparatus including: a support portion for supporting the optical element; a guide portion for guiding the support portion to move in a rectilinear direction; a brake disposed between a first position that contacts the support portion and restricts a movement of the support portion, and a second position that is spaced apart from the support portion and allows the movement of the support portion to change a position thereof; and a driving portion for driving the brake.

Apparatus for transferring optical element including brake

A piezoelectric motor including a base member; a stator disposed on the base member and comprising at least one piezoelectric element; a rotor configured to rotate by a wave motion of the stator, the wave motion being generated by the piezoelectric element; a cover member attached to the base member; a bearing arranged between the cover member and the rotor; and an elastic member configured to press the rotor toward the stator.

Piezoelectric motor

A power transmitting mechanism assembly including a supporting plate; a first roller, which is rotatably attached to the supporting plate; a first plate, which contacts a first end of the first roller and is arranged to be able to rotate with respect to the supporting plate; a power generating unit, which generates power for rotating the first plate when a signal is applied; a second plate, which is arranged to contact a second end of the first roller; and a friction changing unit, which is attached to at least one of the first roller, the first plate, and the second plate and changes friction of a portion of a contacting surface between the first roller and the first plate or friction of a portion of a contacting surface between the first roller and the second plate.

Power transmitting mechanism assembly

A piezoelectric motor includes a piezoelectric element; a stator comprising a first surface and a second surface, wherein the piezoelectric element is disposed on the first surface and a plurality of projections are formed on the second surface; a rotor comprising an operating portion that contacts the plurality of projections and that rotates via waves of the stator generated by the piezoelectric element, wherein a part of each of the plurality of projections that contacts the operating portion comprises a curved contact portion.

Growing community of inventors

Anyang-si, South Korea

Dong-eui Shin