摘要:
The present invention relates to a variable focus lens. The variable focus lens comprises a fluid chamber having a protrusion formed along one opened end thereof. The fluid chamber is cylindrically shaped to house first and second non-miscible fluids therein, and the first and second fluids have different refractive indices. A transparent element hermetically is coupled with the opened end of the chamber with a predetermined gap from the protrusion of the chamber. A first electrode is disposed inside the chamber to act on the first fluid, and a second electrode is insulated from the first electrode. The variable focus lens can be easily fabricated to prevent bubble formation with the protrusion formed at the opened end of the chamber.
摘要:
Disclosed is a portable communication device having a sliding display unit. The portable communication device has a body, a folder which rotates about a hinge axis to be folded or unfolded with respect to the body, a sliding display unit which is folded or unfolded together with the folder with respect to the body and which can slide in a longitudinal direction of the folder so as to open and close a region of an inner surface of the body or the folder, and a hinge unit for pivotably connecting the folder to the body.
摘要:
The present invention relates to an efficient snapshot technique based on a mapping for a large logical volume shared in multiple hosts. According to the present invention, problems of time delays in a conventional snapshot technique is solved by employing a FAB and an SSB, which are bits representing whether a COW operation is carried out to a mapping entry. In other words, the present invention solves the problems of delaying a write operation of corresponding volume, which is simultaneously executed when a snapshot is created, until the snapshot creation is completed. Further, in the write operation carried out after the snapshot creation, an operation of determining whether the COW operation is carried out is achieved by reading only an original mapping block by using the FAB and the SSB, without reading out the snapshot mapping block. Therefore, an additional disk access operation is decreased when carrying out a write operation to the volume in which the snapshot exists, thereby improving the performance of operation. Furthermore, in a snapshot destruction operation, the operation of determining whether the COW operation is carried out or not can be achieved without access to the snapshot mapping block, thereby preventing the degradation of performance. In case there is at least one snapshot, the determination operation can be achieved by an access to the original mapping block. Consequently, constant performance is always provided without the number of the snapshots.
摘要:
The present invention relates to an apparatus and method for providing and obtaining product information through a broadcast signal. In this present invention, information identifying a product item, which is in a scene to be presented from a broadcast signal, is provided together with a broadcast signal, then a signal receiving terminal stores the product information for a new product item and displays the stored information to a viewer to select one product item while or after watching an interesting broadcast program, and transmits data identifying a selected product item to a predetermined web site and receives web site address for the selected item from that site. As a result, derailed information for the selected item is acquired from a server addressed by the received web site address.
摘要:
Disclosed herein is a panel of a slim cathode ray tube constructed such that the deflection angle of an electron beam is 110 degrees or more. The slim cathode ray tube includes a tube part constituted by joining the panel and a funnel with each other. The panel includes a face part, a side wall disposed around the face part such that the side wall is bent toward the funnel, and a seal edge formed at the side wall, the panel being joined with the funnel at the seal edge. On the assumption that the thickness of the center of the face part is Tc, the thickness of the long side of the seal edge is Tx, the thickness of the short side of the seal edge is Ty, and the thickness of the diagonal part of the seal edge is Td, the panel is constructed such that the following inequalities are satisfied: 0.8≦Tc/Ty≦Tc/Tx≦1.0≦Tc/Td and Td
摘要:
The present invention relates to a directional coupler, in particular, to a capacitance compensation type directional coupler comprising a signal line for transmitting signals. A coupling line is formed apart from and parallel to the signal line, with its first end transmitting the extracted power and its second end terminated. At least one conductive line, electrically connected to the coupling line, is extended from the coupling line across the signal line, apart from and perpendicularly overlapping with the signal line. The present invention compensates capacitance between the signal line and the coupling line by forming capacitance in areas where the conductive line and the signal line overlapping each other perpendicularly.
摘要:
Stable aqueous poly(urea/urethane) polymers and dispersions are made that do not require the inclusion of chain extenders, curing agents or crosslinking agents.
摘要:
The present invention is directed to a rheology control agent for coating compositions. The rheology control agent includes a compound having the Formula (II) including isomers or mixtures of isomers thereof: wherein R, R9, R10, m and n are described in the specification. The coating compositions containing the rheology control agent have improved rheology control on application and are useful for OEM, refinishing or repainting the exterior of automobile and truck bodies and parts thereof.
摘要:
Disclosed are copper foil or net comprising a Cu-nitrile compound complex formed on the surface thereof, a method for preparing the same, and a lithium secondary battery that comprises an electrode using the same copper foil or net as a collector. The lithium secondary battery, which uses a copper collector comprising a Cu-nitrile compound complex formed on the surface thereof through the application of a certain voltage level, can prevent the corrosion of Cu occurring at a voltage of 3.6V or higher under overdischarge conditions away from the normal drive condition, and thus can significantly improve the capacity restorability after overdischarge.
摘要:
The present invention relates to a method of forming isolation films of a semiconductor device. According to the present invention, an oxidization process is performed to oxidize inner walls of trenches in a pre-heating period where temperature is raised in order to deposit an insulating material within a chamber so as to form isolation films. Thus, a smiling phenomenon can be prevented from being generated at corners of a tunnel oxide film formed in a semiconductor substrate, and top corners of trenches can also be made round. It is thus possible to improve the reliability of a process and electrical characteristics of the device.