Abstract: A music composition method and system is provided for composing a music piece using a touch interaction with a touchscreen-enabled portable device. A music composition method includes setting an accompaniment with chords varying according to the progress of a unit play time; playing the accompaniment; displaying, when a series of touches are detected, a trace of the touches; playing a melody of tones mapped to positions of the touches and matching notes of a note scale defined by chords of the accompaniment playing at the times when the touches are detected; and saving the trace, melody, and accompaniment as a music piece as an ensemble.

Abstract: A music composition method and system is provided for composing a music piece using a touch interaction with a touchscreen-enabled portable device. A music composition method includes setting an accompaniment with chords varying according to the progress of a unit play time; playing the accompaniment; displaying, when a series of touches are detected, a trace of the touches; playing a melody of tones mapped to positions of the touches and matching notes of a note scale defined by chords of the accompaniment playing at the times when the touches are detected; and saving the trace, melody, and accompaniment as a music piece as an ensemble.

Abstract: A music composition method and system is provided for composing a music piece using a touch interaction with a touchscreen-enabled portable device. A music composition method includes setting an accompaniment with chords varying according to the progress of a unit play time; playing the accompaniment; displaying, when a series of touches are detected, a trace of the touches; playing a melody of tones mapped to positions of the touches and matching notes of a note scale defined by chords of the accompaniment playing at the times when the touches are detected; and saving the trace, melody, and accompaniment as a music piece as an ensemble.

Abstract: A music composition method and system is provided for composing a music piece using a touch interaction with a touchscreen-enabled portable device. A music composition method includes setting an accompaniment with chords varying according to the progress of a unit play time; playing the accompaniment; displaying, when a series of touches are detected, a trace of the touches; playing a melody of tones mapped to positions of the touches and matching notes of a note scale defined by chords of the accompaniment playing at the times when the touches are detected; and saving the trace, melody, and accompaniment as a music piece as an ensemble.

Abstract: Provided is an auto-focusing camera module having a liquid lens. The auto-focusing camera module includes a lens barrel having a liquid lens and a solid lens stacked and disposed therewith; an image sensor for focusing light that is passed through the liquid lens and the solid lens; a substrate provided in a lower end of the lens barrel to electrically mount the image sensor; and a power supply unit fixed integrally in the lens barrel and electrically coupled between the liquid lens and the substrate to apply a power source to the liquid lens. Therefore, the auto-focusing camera module may be useful to control its focus to coincide with high pixels and high performances of the camera module, manufacture a small final product by lowering the entire height of the camera module, enhancing the productivity of the camera module by employing a simple liquid lens to simplify an assembly structure of the liquid lens that is in contact with the substrate, and reduce the manufacturing cost.

Abstract: There is provided a high-definition imaging optical system including: an aperture stop; a first lens disposed at an image side of the aperture stop, the first lens having a positive refractive power and having a convex object-side surface; a second lens disposed at an image side surface of the first lens; a third lens disposed at an image side surface of the second lens; a fourth lens having a convex image-side surface and having a positive refractive power; and a fifth lens having a concave image-side surface and having a negative refractive power, wherein a combined refractive power of the second and third lenses is negative. The optical system is high-performing and compact and can be further improved in resolution. Also, the optical system can correct chromatic aberration and improve color fringing in the case of indoor or outdoor photographing.

Abstract: Disclosed herein is a liquid-lens assembly using an electrowetting method. The liquid-lens assembly includes a liquid-lens module, a barrel supporting the liquid-lens module, and a housing coupled to the barrel and having an image sensor. Electrodes are provided on the barrel and the housing, so that current is applied to the liquid-lens module through the electrodes.

Abstract: There is provided a wide-angle lens system having a wide angle of view and less distortion. The wide-angle lens system including: an object-side lens group disposed at an object side with respect to an aperture stop and having overall positive refractive power; and an image-side lens group disposed at an image side with respect to the aperture stop and having overall positive refractive power, wherein a focal length ratio between the object-side lens group and the image-side lens group satisfies following condition 1, 2<FO/FI<10??condition 1, where FO is a focal length of the object-side lens group (FO>0) and FI is a focal length of the image-side lens group (FI>0). This wide-angle lens system sufficiently corrects distortion even in a wide angle of view, thereby ensuring an image with superior quality.

Abstract: There is provided a high-definition imaging optical system including: an aperture stop; a first lens disposed at an image side of the aperture stop, the first lens having a positive refractive power and having a convex object-side surface; a second lens disposed at an image side surface of the first lens; a third lens disposed at an image side surface of the second lens; a fourth lens having a convex image-side surface and having a positive refractive power; and a fifth lens having a concave image-side surface and having a negative refractive power, wherein a combined refractive power of the second and third lenses is negative. The optical system is high-performing and compact and can be further improved in resolution. Also, the optical system can correct chromatic aberration and improve color fringing in the case of indoor or outdoor photographing.

Abstract: There is provided a wide-angle lens system having a wide angle of view and less distortion. The wide-angle lens system including: an object-side lens group disposed at an object side with respect to an aperture stop and having overall positive refractive power; and an image-side lens group disposed at an image side with respect to the aperture stop and having overall positive refractive power, wherein a focal length ratio between the object-side lens group and the image-side lens group satisfies following condition 1, 2<FO/FI<10 ??condition 1, where FO is a focal length of the object-side lens group (FO>0) and FI is a focal length of the image-side lens group (FI>0). This wide-angle lens system sufficiently corrects distortion even in a wide angle of view, thereby ensuring an image with superior quality.

Abstract: Provided is an auto-focusing camera module having a liquid lens. The auto-focusing camera module includes a lens barrel having a liquid lens and a solid lens stacked and disposed therewith; an image sensor for focusing light that is passed through the liquid lens and the solid lens; a substrate provided in a lower end of the lens barrel to electrically mount the image sensor; and a power supply unit fixed integrally in the lens barrel and electrically coupled between the liquid lens and the substrate to apply a power source to the liquid lens. Therefore, the auto-focusing camera module may be useful to control its focus to coincide with high pixels and high performances of the camera module, manufacture a small final product by lowering the entire height of the camera module, enhancing the productivity of the camera module by employing a simple liquid lens to simplify an assembly structure of the liquid lens that is in contact with the substrate, and reduce the manufacturing cost.

Abstract: Disclosed herein is a current transmitting structure for a liquid-lens module using an electrowetting phenomenon. The present invention is characterized in that it uses an FPC to apply electricity to the liquid-lens module.

Abstract: Disclosed herein is a liquid-lens assembly using an electrowetting method. The liquid-lens assembly includes a liquid-lens module, a barrel supporting the liquid-lens module, and a housing coupled to the barrel and having an image sensor. Electrodes are provided on the barrel and the housing, so that current is applied to the liquid-lens module through the electrodes.

Abstract: A liquid lens having a curved contact surface with inner fluids. The liquid lens is configured to adjust a focal distance using electro-wetting and includes a base having an insulator film formed thereon and connected with an electrode. The liquid lens also includes a first fluid disposed on the base and a second fluid disposed on the first fluid. The liquid lens further includes a cover for hermetically sealing the first and second fluids, the cover connected to the electrode and made of a light-transmitting material. According to the present invention, the curvature of a meniscus between the fluids is allowed to change sensitively or insensitively in response to voltage. This allows application of the liquid lens to various electronic devices and a miniaturized structure with a small thickness.