Abstract: The present disclosure provides a road impact simulating apparatus of a steer-by-wire system, the apparatus comprising: a Signal processor for determining a wheel speed difference value between wheels, and determining a lateral acceleration difference value between an estimated lateral acceleration and a sensed lateral acceleration of a vehicle; an Impact determinator for determining whether there is a road impact based on the wheel speed difference value; and a Torque calculator for determining a reaction force torque according to the road impact based on the lateral acceleration difference value if it is determined as the road impact.

Abstract: The present disclosure provides a road impact simulating apparatus of a steer-by-wire system, the apparatus comprising: a Signal processor for determining a wheel speed difference value between wheels, and determining a lateral acceleration difference value between an estimated lateral acceleration and a sensed lateral acceleration of a vehicle; an Impact determinator for determining whether there is a road impact based on the wheel speed difference value; and a Torque calculator for determining a reaction force torque according to the road impact based on the lateral acceleration difference value if it is determined as the road impact.

Abstract: The present embodiments relate to an electronic power steering device, and relates to a technology for reducing a torque rise resulting from an increase in frictional force in a low-temperature situation of the electronic power steering device. According to the present embodiments, a viscous friction compensation current is calculated using a viscous gain, which has been determined according to a damping coefficient estimated from a temperature sensed in a low-temperature situation of the electronic power steering device, and a steering angular velocity, a Coulomb friction compensation current is calculated using the sensed temperature and the mount of accumulated steering angles, and the calculated viscous friction compensation current and the Coulomb friction compensation current are added to the motor driving current and then supplied such that the driver can have the same feeling of driving, even in the low-temperature situation, as that in the room-temperature situation.

Abstract: The present embodiments relate to an electronic power steering device, and relates to a technology for reducing a torque rise resulting from an increase in frictional force in a low-temperature situation of the electronic power steering device. According to the present embodiments, a viscous friction compensation current is calculated using a viscous gain, which has been determined according to a damping coefficient estimated from a temperature sensed in a low-temperature situation of the electronic power steering device, and a steering angular velocity, a Coulomb friction compensation current is calculated using the sensed temperature and the mount of accumulated steering angles, and the calculated viscous friction compensation current and the Coulomb friction compensation current are added to the motor driving current and then supplied such that the driver can have the same feeling of driving, even in the low-temperature situation, as that in the room-temperature situation.

Abstract: An iris recognition apparatus for recognizing iris in an eyeball is provided. In particular, an iris recognition apparatus including a reflection unit that reflects and transmits an image of an eyeball is provided. The reflection unit reflects and transmits an image of an eyeball. A first image collection unit collects a reflected image. A control unit extracts an iris pattern based on the collected image.

Abstract: A terminal for minimizing a gazing phenomenon in an iris recognition terminal is disclosed. The iris recognition terminal may minimize the gazing phenomenon by including an eyeball reflection unit. Also, it is also possible to minimize the gazing phenomenon by displaying a positioner on a display unit. A person who wears glasses may experience specular light on the iris recognition terminal but the terminal of the present disclosure avoids the specular light. The terminal determines the location of the specular light and guides an avoidance location to a user based on the determination, so quick and accurate iris recognition is possible.

Abstract: Embodiments provide an iris scanning apparatus for identifying a subject, employing a wide-angle image collector, and a method thereof. A wide angle camera is employed in the iris scanning apparatus to allow a user to easily locate a small eye region of a subject without having to check back and forth between an image display and the subject's face. The apparatus and method are also capable of measuring the distance to the subject's eye and displaying the distance information on the image display, and informing the user as to whether the eye of the subject is within operating range of the iris scanning apparatus. Also, iris scanning is automatically performed without the user's input when an eye is positioned within operating range, and is not performed if an image captured by the iris scanning apparatus does not contain an eye region, in order to prevent erroneous operation.

Abstract: A terminal for minimizing a gazing phenomenon in an iris recognition terminal is disclosed. The iris recognition terminal may minimize the gazing phenomenon by including an eyeball reflection unit. Also, it is also possible to minimize the gazing phenomenon by displaying a positioner on a display unit. A person who wears glasses may experience specular light on the iris recognition terminal but the terminal of the present disclosure avoids the specular light. The terminal determines the location of the specular light and guides an avoidance location to a user based on the determination, so quick and accurate iris recognition is possible.

Abstract: An iris recognition apparatus for recognizing iris in an eyeball is provided. In particular, an iris recognition apparatus including a reflection unit that reflects and transmits an image of an eyeball is provided. The reflection unit reflects and transmits an image of an eyeball. A first image collection unit collects a reflected image. A control unit extracts an iris pattern based on the collected image.

Abstract: Embodiments provide an iris scanning apparatus for identifying a subject, employing a wide-angle image collector, and a method thereof. A wide angle camera is employed in the iris scanning apparatus to allow a user to easily locate a small eye region of a subject without having to check back and forth between an image display and the subject's face. The apparatus and method are also capable of measuring the distance to the subject's eye and displaying the distance information on the image display, and informing the user as to whether the eye of the subject is within operating range of the iris scanning apparatus. Also, iris scanning is automatically performed without the user's input when an eye is positioned within operating range, and is not performed if an image captured by the iris scanning apparatus does not contain an eye region, in order to prevent erroneous operation.

Abstract: The present invention relates to a technique for checking if the reflected image of a light emitting diode for lighting is detected in the image of an iris and determining whether the iris is a living one in order to prevent an illegal intrusion using a simulacrum such as a photograph or dynamic image.

Abstract: The invention relates to an iris recognition system, and more particularly, to an apparatus for approaching the iris images of the both eyes most adjacent within a range beyond which the iris images overlap each other in an iris recognition system using all of the iris images of the both eyes at the same time. The iris recognition system using all of the iris images of the both eyes at the same time adopts an apparatus for narrowing the distance between the iris images of the both eyes acquired in CCD images when the iris images are obtained through photographing the iris images of the both eyes are photographed. The apparatus of the invention comprises iris image focusing means for converting an incident path, whereby the distance between the iris images of the both eyes is narrowed on an optical path along which eye images of the user are focused to a camera, in which the focusing means can be an angled reflector with one side being inclined at an angle about the center.

Abstract: Disclosed is a method for registering Iris code in an Iris recognition system to avoid inconvenience of re-registration when a new Iris algorithm is applied. The method for registering Iris code includes the step of: when an old Iris code was registered on an Iris code database of the Iris recognition system to which the old Iris algorithm is applied, registering a new Iris code on the Iris code database, the new Iris code being generated using a new algorithm provided in the Iris recognition system. Accordingly, even though an Iris algorithm is changed in an Iris recognition system, the users do not have to register their Iris codes again and time to register Iris codes again are not wasted.

Abstract: The invention relates to an iris recognition system, and more particularly, to an apparatus for approaching the iris images of the both eyes most adjacent within a range beyond which the iris images overlap each other in an iris recognition system using all of the iris images of the both eyes at the same time. The iris recognition system using all of the iris images of the both eyes at the same time adopts an apparatus for narrowing the distance between the iris images of the both eyes acquired in CCD images when the iris images are obtained through photographing the iris images of the both eyes are photographed. The apparatus of the invention comprises iris image focusing means for converting an incident path, whereby the distance between the iris images of the both eyes is narrowed on an optical path along which eye images of the user are focused to a camera, in which the focusing means can be an angled reflector with one side being inclined at an angle about the center.