摘要:
A bi-directional detector which enables a host and a client in a collection terminal is disclosed. The bi-directional detector includes a client detection unit in the host part, for detecting the clients connected to the host part; a client identification unit for identifying types of the clients detected by the client detection unit; a host detection unit in each of the clients for detecting the host part; and a switch unit in each of the clients for determining whether to apply comparison power to the client detection unit and the host detection unit according to whether power is applied to the client. In the bi-directional detector, the client directly detects the host part and manages the connection, thereby reducing the load on the host part, without performing a step by which a host part responds to a connection request of a client.
摘要:
An origin of a reference coordinate system is assigned to one of a plurality of center points, and center point coordinates according to the reference coordinate system are assigned to remaining center points, so that reference marks successively correspond to center points of a plurality of microscopes fixed to a base. Beam position detection marks disposed between the reference marks with exposure points of exposure heads fixed to the base are crossed to assign beam coordinates according to the reference coordinate system to the exposure points. Thus, alignment may be easily and accurately performed, and is effective for increasingly larger apparatuses.
摘要:
A semiconductor device includes a substrate having a first area and a second area, a first transistor in the first area, a second transistor in the second area, an isolation layer between the first area and the second area, and at least one buried shield structure on the isolation layer.
摘要:
A semiconductor device includes a substrate, a gate electrode on the substrate and source and drain electrodes disposed at respective sides of the gate electrode. The device further includes a nano-line passing through the gate electrode and extending into the source and drain electrodes and having semiconductor characteristics. The nano-line may include a nano-wire and/or a nano-tube. A gate insulating layer may be interposed between the nano-line and the gate electrode. The source and drain electrodes may be disposed adjacent respective opposite sidewalls of the gate electrode, and the gate insulating layer may be further interposed between the source and drain electrodes and the gate electrode. Fabrication methods for such devices are also described.
摘要:
An apparatus for and a method of correcting an error using a low density parity check (LDPC) matrix. A resultant matrix is generated by performing XOR and modular 2 operations with respect to the LDPC matrix and a code word vector and a number of 1 bits in the resultant matrix is detected. If the number of 1 bits and a column weight of the LDPC matrix are equal, a column of the LDPC matrix having bit values corresponding to bit values of the resultant matrix, respectively, is identified and the codeword is corrected by changing a binary value of a bit of the code word vector having a bit number corresponding to the identified column number. Otherwise the error correction is terminated without correcting the error.
摘要:
A deceleration module for extending or retracting a whip antenna. In the deceleration module, a motor unit is installed on the bottom of a body housing, a deceleration unit reduces a rotating force provided coaxially from the motor unit at least twice. A roller unit is integrally formed coaxially with the deceleration module by injection molding, and disposed to roll in an extending and retracting direction of the whip antenna in contact with the outer circumference of the whip antenna.
摘要:
A mobile telephone having a main body and a sub-body closably mounted on the main body. The mobile telephone includes an opening/closing device installed in the main body, for automatically opening and closing the sub-body against the main body; a switch located at a specific place on the main body, for driving the opening/closing device; a detector for detecting an opening angle of the opening/closing device; and a controller for controlling rotation of the opening/closing device to a predetermined opening angle by analyzing an output of the detector.
摘要:
A mechanism for extending and retracting an antenna in a portable phone. A driving motor is provided and has a motor shaft around which a worm is fit, a worm gear is engaged with the worm of the motor shaft, and a pulley arrangement is provided which includes a roller shaft which connects the worm gear to a first pulley roller, a timing belt that transfers the force of the first pulley roller to a second pulley roller. A driving roller and a driven roller receive the force from the second pulley roller, and an antenna rod is disposed between the driving and driven rollers, to be extended/retracted by the driving and driven rollers. A first main bracket is provided which has a space for holding the driving motor, a first free end for supporting the worm gear, and a second free end for supporting the driving roller. A second main bracket is also provided which has an engaging end to be engaged with the first main bracket and a guide rib for supporting the driving motor, and a sub-bracket is connected to the second main bracket for supporting the driven roller downward.