Samsung Electro-mechanics Co., Ltd.

Joo Hyoung Lee

Joo Yul Ko

Woo Young Choi

Soo Woong Lee

Je Hyuk Ryu

Byung Joo Hong

Jong Woo Lee

Jung Chul Gong

Yong Woon Ji

Jung Eui Park

Sang Hoon Kim

Ho Kwon Yoon

Tae Ho Lim

Ju Yong Kim

Gwang Pyo Park

Jung Chui Gong

A touch sensing device configured to be installed in an electronic device, the electronic device including a side unit and a touch switch unit, the side unit including a non-conductive cover and a conductive frame coupled to the cover, the touch switch unit including a first touch member that is a portion of the cover, the touch sensing device including a first sensing electrode configured to be disposed inside the electronic device near the first touch member; a first sensing coil configured to be disposed inside the electronic device; and a first connection wire including one end connected to the first sensing electrode and another end connected to the first sensing coil, thereby electrically connecting the first sensing electrode to the first sensing coil.

Touch sensing device and electronic device providing freedom of placement of sensing coil

A touch sensing device includes: a first touch sensing unit including a first sensing electrode and a first sensing inductor electrically connected to each other, wherein capacitance of the first touch sensing unit varies depending on parasitic capacitance formed between the first sensing electrode and a human body according to a contact of the human body; a first force sensing unit including a first sensing coil spaced apart from an internal side surface of a frame, wherein inductance of the first force sensing unit varies depending on a change in distance between the first sensing coil and the frame according to a pressing touch; and a circuit unit configured to detect whether a touch of the human body is input, based on variations in the capacitance of the first touch sensing unit and variations in the inductance with the force sensing unit.

Touch sensing device and electronic apparatus having improved touch sensing identification

A touch operation sensing device configured to be added to an electronic device, the electronic device including a touch member disposed in a housing and having conductivity, the touch operation sensing device includes an oscillation circuit disposed on an internal side of the touch member and including an inductor element and a capacitor element to generate an oscillation signal in response to changed impedance during a touch operation through the touch member, and an insulating member disposed between a first terminal of the inductor element and the touch member, and between a second terminal of the inductor element and the touch member.

Touch operation sensing device using impedance change caused by touch operation

A touch sensing device in an electronic device, the electronic device including a touch manipulation unit disposed in a housing of the electronic device, the touch manipulation unit including a first insulating member penetrating through the housing, the touch sensing device including a first sensor unit disposed on an internal surface of the first insulating member, and an oscillation circuit connected to the first sensor unit, the oscillation circuit being configured to generate a first oscillation signal having a first resonance frequency that varies in response to a touch capacitance generated in response to the first insulating member being touched, wherein the first sensor unit contacts the internal surface of the first insulating member, and does not contact the housing.

Touch sensing device and electronic device capable of identifying positions of multiple touches

A sensing device with a fingerprint sensor is provided. The sensing device includes a touch input pattern included in the fingerprint sensor, an oscillation circuit connected to the touch input pattern and configured to change a capacitance of the oscillation circuit when a touch occurrence is sensed by the touch input pattern and generate an oscillation signal based on the change in the capacitance, and an operation detection circuit configured to detect a touch occurrence based on a frequency included in the oscillation signal input from the oscillation circuit and generate a detection signal.

Sensing device with fingerprint sensor

A touch sensing device, applicable to an electric device including a touch member integrated with a housing, includes an inductor element spaced apart from an internal side surface of the touch member, a support member attached to an internal side surface of the housing or the touch member to support the inductor element disposed thereon, a substrate on which the inductor element is mounted, the substrate being disposed on the support member, and a circuit part connected to the inductor element and configured to detect a touch input and a touch-force input in response to different frequency change characteristics depending on the touch input and the touch-force input through the touch member.

Touch sensing device capable of performing touch sensing and force sensing using single sensing structure and electric device including the same

A switching operation sensing device to be applied to an electronic device including a touch operation unit having a first touch member integrated with a housing, the switching operation sensing device including a sensing coil component including a first inductor unit disposed on an inner surface of the first touch member, and an oscillator circuit connected to the sensing coil component and configured to generate an oscillation signal having a resonant frequency that changes when a touch operation is input through the touch operation unit, wherein the first inductor unit includes a first sensing area opposing the first touch member, a first sensing wiring disposed in the first sensing area, and a first sensing coil connected between the first sensing wiring and a first resonant circuit of the oscillator circuit.

Sensing coil component and switching operation sensing device including the same

A touch sensing device includes: first and second touch sensor devices disposed on internal surfaces of first and second touch sensing members, respectively; a force sensor device spaced apart from an internal surface of a force sensing member; an oscillation circuit configured to generate a first oscillation signal, based on a change in capacitance in response to the first touch sensing member being touched; generate a second oscillation signal, based on a change in capacitance in response to the second touch sensing member being touched; and generate a third oscillation signal, based on a change in inductance depending on a change in spacing between the force sensing member and the force sensor device; and a touch detection circuit configured to adjust a threshold for force sensing through the force sensor device depending on positions of the first and second touch sensing members, based on the first and second oscillation signals.

Touch sensing device and electronic device having hybrid sensing structure

A force operation sensing device is provided. The device includes an input operation unit comprising a first operating member integrally formed with a housing, a magnetic member disposed inside the input operation unit, and an oscillating circuit comprising a first inductor element and a second inductor element, wherein when a force operation is applied to the first operating member, the oscillating circuit is configured to generate a first variable resonant frequency based on an interaction between the first operating member and the first inductor element, and generate a second variable resonant frequency based on an interaction between the magnetic member and the second inductor element.

Force operation sensing device with common noise cancellation

A touch sensing device applied to an electronic device including a side portion having a cover that is nonconductive, and a frame that is conductive, includes: a first touch sensing portion including a first sensing electrode and a first sensing inductor disposed inside the cover and electrically connected to each other, wherein, in response to a touch applied through the cover by a human body, a capacitance is varied by the first touch sensing portion according to parasitic capacitance generated between the first sensing electrode and the human body according to the touch applied through the cover; and a reference sensing portion including a reference coil disposed inside the side portion and configured to provide reference inductance of the reference coil that is constant, regardless of a touch applied through the frame.

Touch sensing device and electronic apparatus having malfunction prevention function

A switching operation sensing device is provided. The device includes a touch operation unit that is integrally formed with a housing and includes first and second touch members disposed in different regions; an oscillator circuit configured to generate a first oscillation signal including a variable resonant frequency when the first touch member is touched and a second oscillation signal including a variable resonant frequency when the second touch member is touched; and a touch detector circuit configured to detect whether at least one of the first and second touch members has been touched, and distinguish touch regions based on the first oscillation signal and the second oscillation signal.

Switching operation sensing device that distinguishes touch regions on surface of integrated housing

An actuator includes a magnet, a driving coil, a driver, and a position detector. The magnet is disposed on one surface of a lens barrel. The driving coil is disposed at a proximity of the magnet. The driver is configured to apply a driving signal to the driving coil to move the lens barrel along an optical axis. The position detector is configured to generate an oscillation signal of which a frequency is changed based on movement of the magnet and configured to compare oscillation signals generated in a first position and a second position of the lens barrel to detect a present position of the lens barrel.

Actuator of camera module

An apparatus to control a position of a camera module includes a magnetic member, a coil, a driver, a signal extractor, and a position detector. The magnetic member is disposed on a lens barrel of the camera module. The coil is disposed opposite to the magnetic member. The driver is configured to provide a position confirmation signal to the coil. The signal extractor is configured to extract a specific frequency component from a signal of the coil including the position confirmation signal and output a detection signal. The position detector is configured to provide a position signal corresponding to a position of the magnetic member based on the detection signal.

Apparatus for controlling position of camera module

A actuator using a voice coil motor (VCM) method includes a coil configured to face a magnetic member disposed on a lateral surface of a lens carrier, and be spaced apart from the magnetic member, a driving circuit configured to supply a composite current including a driving current and a position detection current to the coil based on a composite voltage input to the driving circuit, and an impedance/digital conversion circuit configured to convert an alternating current (AC) voltage signal including a specific frequency component acquired at opposite ends of the coil via a demodulation scheme, extract a low-frequency signal having an inductance component of the coil, and detect a position signal based on the low-frequency signal.

Actuator and position control apparatus using voice coil motor method with temperature compensation function

A camera module actuator includes, a magnet, a coil, a driver, and a position estimating processor. The coil is disposed to face the magnet. The driver is configured to move the magnet by applying a driving signal to the coil. The position estimating processor is configured to estimate a position of the magnet from an oscillating signal. A frequency of the oscillating signal varies according to a movement of the magnet.

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Suwon-si, South Korea

Joo Hyoung Lee