Abstract: A vertical cavity surface emitting laser (VCSEL) array, comprising: a first sub-array includes a plurality of VCSEL units arranged along a first axis, and wherein the first sub-array includes: a first VCSEL unit includes a first upper contact and a first bottom contact; and a second VCSEL unit includes a second upper contact and a second bottom contact; a first contact electrically connected to the first upper contact and the second bottom contact; and a second contact electrically connected to the second upper contact and the first bottom contact, wherein the first VCSEL unit is operated when a first voltage is applied to the first contact and a second voltage smaller than the first voltage is applied to the second contact, and wherein the second VCSEL unit is operated when the second voltage is applied to the first contact and the first voltage is applied to the second contact.

Abstract: A vertical cavity surface emitting laser (VCSEL) array, comprising: a first sub-array includes a plurality of VCSEL units arranged along a first axis, and wherein the first sub-array includes: a first VCSEL unit includes a first upper contact and a first bottom contact; and a second VCSEL unit includes a second upper contact and a second bottom contact; a first contact electrically connected to the first upper contact and the second bottom contact; and a second contact electrically connected to the second upper contact and the first bottom contact, wherein the first VCSEL unit is operated when a first voltage is applied to the first contact and a second voltage smaller than the first voltage is applied to the second contact, and wherein the second VCSEL unit is operated when the second voltage is applied to the first contact and the first voltage is applied to the second contact.

Abstract: Disclosed is an actuator generating haptic sensations, the actuator having a spherical rotor driven by a magnetic force vector created around the same, a stator having a space corresponding in shape to the spherical rotor defined therein to allow the spherical rotor to be positioned in the space and having a portion of an upper part of the spherical rotor exposed, at least three rotation-driving coils formed in the stator at a given distance from each other to provide the magnetic force vector to the spherical rotor, and a driving unit independently controlling electric current supplied to each of the rotation-driving coils to create the magnetic force vector.

Abstract: A vertical cavity surface emitting laser (VCSEL) array, comprising: a first sub-array includes a plurality of VCSEL units arranged along a first axis, and wherein the first sub-array includes: a first VCSEL unit includes a first upper contact and a first bottom contact; and a second VCSEL unit includes a second upper contact and a second bottom contact; a first contact electrically connected to the first upper contact and the second bottom contact; and a second contact electrically connected to the second upper contact and the first bottom contact, wherein the first VCSEL unit is operated when a first voltage is applied to the first contact and a second voltage smaller than the first voltage is applied to the second contact, and wherein the second VCSEL unit is operated when the second voltage is applied to the first contact and the first voltage is applied to the second contact.

Abstract: Provided is a three-dimensional magnetic sensor based finger motion capture interface device, including a back-of-hand fixing member; a finger wearing member; at least one link member which is disposed between the back-of-hand fixing member and the finger wearing member and includes at least one magnetic sensor; at least one fixing member which connects between a plurality of link members; and a controller which receives sensor coordinate values corresponding to the change of a magnetic line of force sensed by the at least one magnetic sensor, extracts pitch and yaw motions of each link member based on the received sensor coordinate values, and calculates a user's finger position based on the extracted pitch and yaw motion values.

Abstract: Provided is a three-dimensional magnetic sensor based finger motion capture interface device, including a back-of-hand fixing member; a finger wearing member; at least one link member which is disposed between the back-of-hand fixing member and the finger wearing member and includes at least one magnetic sensor; at least one fixing member which connects between a plurality of link members; and a controller which receives sensor coordinate values corresponding to the change of a magnetic line of force sensed by the at least one magnetic sensor, extracts pitch and yaw motions of each link member based on the received sensor coordinate values, and calculates a user's finger position based on the extracted pitch and yaw motion values.

Abstract: Disclosed is an actuator generating haptic sensations, the actuator having a spherical rotor driven by a magnetic force vector created around the same, a stator having a space corresponding in shape to the spherical rotor defined therein to allow the spherical rotor to be positioned in the space and having a portion of an upper part of the spherical rotor exposed, at least three rotation-driving coils formed in the stator at a given distance from each other to provide the magnetic force vector to the spherical rotor, and a driving unit independently controlling electric current supplied to each of the rotation-driving coils to create the magnetic force vector.

Abstract: Provided is a parallel fieldbus network-based motor control system including one or more slave modules each including a basic processor and an auxiliary processor that control one or more motors, and a master module including at least one master controller that generates command data for controlling each of the one or more motors. The master module further includes a basic network master controller, an auxiliary network master controller and a wireless network master controller, and the slave module includes a basic network slave controller, an auxiliary network slave controller and a wireless network module.

Abstract: According to an aspect of the present invention, there is provided a parallel fieldbus network-based motor control system including: one or more slave modules that control one or more motors and correspond to each of the one or more motors; and a master module that generates command data for controlling each of the one or more motors and transmits the generated command data to each of the one or more slave modules, wherein each of the one or more slave modules includes a basic processor and an auxiliary processor, the auxiliary processor acquires the command data from the master module via a basic network, and supports the acquired command data to be stored in a shared memory and transmitted to the basic processor or transmits the acquired command data to the basic processor via a local network, the basic processor controls the motor corresponding to the corresponding slave module in accordance with the command data acquired from the master module via the basic network, read from the shared memory, or transmi

Abstract: An apparatus interacting with an external device by using a pedal module is provided. The apparatus includes: a pedal module; a parallel position-measuring sensor for sensing a degree of a parallel motion; a rotary position-measuring sensor for sensing a degree of a rotary motion; and a control part for ordering the external device to be driven by referring to at least either of the degree of the parallel motion sensed by the parallel position-measuring sensor or that of the rotary motion sensed by the rotary position-measuring sensor or for receiving a control signal from the external device and driving a motor group including at least one motor to apply force feedback to the pedal module by referring to the control signal.

Abstract: A method for displaying a shadow of a 3D virtual object, includes steps of: (a) acquiring information on a viewpoint of a user looking at a 3D virtual object displayed in a specific location in 3D space by a wall display device; (b) determining a location and a shape of a shadow of the 3D virtual object to be displayed by referring to information on the viewpoint of the user and the information on a shape of the 3D virtual object; and (c) allowing the shadow of the 3D virtual object to be displayed by at least one of the wall display device and a floor display device by referring to the determined location and the determined shape of the shadow of the 3D virtual object. Accordingly, the user is allowed to feel the accurate sense of depth or distance regarding the 3D virtual object.

Abstract: Disclosed herein is a 3D teleconferencing apparatus and method enabling eye contact. The 3D teleconferencing apparatus enabling eye contact according to the present invention includes an image acquisition unit for acquiring depth images and color images by manipulating cameras in real time in consideration of images obtained by capturing a subject that is a teleconference participant and images received over a network and corresponding to a counterpart involved in the teleconference; a full face generation unit for generating a final depth image and a final color image corresponding to a full face of the participant for eye contact using the depth images and the color images; and a 3D image generation unit for generating a 3D image corresponding to the counterpart and displaying the 3D image on a display device.

Abstract: An apparatus for generating haptic feedback, includes: multiple haptic units placed on a first portion of a body; and a control unit placed on a second portion, near the first portion, of the body, wherein the control unit includes: a first module for acquiring information on relative position (i) among the respective multiple haptic units and (ii) between the respective haptic units and the control unit, a second module for acquiring information on absolute position of the control unit by measuring a position of the control unit in reference to an external reference point, and a haptic command module for creating a command signal by referring to at least one piece of the information on relative position acquired by the first module and the information on absolute position acquired by the second module and delivering the created command signal to a corresponding haptic unit among all the multiple haptic units.

Abstract: A method for displaying a shadow of a 3D virtual object, includes steps of: (a) acquiring information on a viewpoint of a user looking at a 3D virtual object displayed in a specific location in 3D space by a wall display device; (b) determining a location and a shape of a shadow of the 3D virtual object to be displayed by referring to information on the viewpoint of the user and the information on a shape of the 3D virtual object; and (c) allowing the shadow of the 3D virtual object to be displayed by at least one of the wall display device and a floor display device by referring to the determined location and the determined shape of the shadow of the 3D virtual object. Accordingly, the user is allowed to feel the accurate sense of depth or distance regarding the 3D virtual object.

Abstract: An apparatus for generating tactile sensation by using a magnetic field, includes: a first magnet and a second one which are placed across a target as a subject to provide tactile sensation; and a first electromagnet placed between the target and the first magnet; wherein a strength of the whole magnetic field between the first and the second magnets is allowed to be adjusted by adjusting at least either of a direction and a strength of a magnetic field arising from the first electromagnet to control the strength of the force with which the target is pressed by the first and the second magnets. Because a magnet itself that generates a magnetic field without any complicated mechanical components may perform a function as an actuator that generates tactile sensation, the apparatus for generating tactile sensation may become simple, light and compact.

Abstract: Disclosed herein is a 3D teleconferencing apparatus and method enabling eye contact. The 3D teleconferencing apparatus enabling eye contact according to the present invention includes an image acquisition unit for acquiring depth images and color images by manipulating cameras in real time in consideration of images obtained by capturing a subject that is a teleconference participant and images received over a network and corresponding to a counterpart involved in the teleconference; a full face generation unit for generating a final depth image and a final color image corresponding to a full face of the participant for eye contact using the depth images and the color images; and a 3D image generation unit for generating a 3D image corresponding to the counterpart and displaying the 3D image on a display device.