摘要:
Disclosed are a system and a method for providing region-based epidemic disease information. The system for providing region-based epidemic disease information comprises: a sensing unit which senses the movement of a mobile communication terminal from a first location to a second location; and a processor linked to the sensing unit which extracts first zone disease information corresponding to the first location from a database, and compares with second zone disease information corresponding to the second location and ensures that the mobile communication terminal is provided with the second zone disease information if, as a result of the comparison, the first zone disease information differs from the second zone disease information.
摘要:
A clock control circuit is provided. The clock control circuit includes a voltage supplier for supplying a first voltage in response to a first clock signal, a voltage booster for boosting the first voltage in response to the first clock signal input to the voltage booster, and a clock generator for generating a second clock signal having a voltage level equal to the boosted first voltage in response to the first clock signal.
摘要:
An on die thermal sensor includes a bandgap unit for generating a first voltage containing temperature information, a tracking unit for tracking a voltage level of the first voltage, and a low power control unit for generating a tracking enable signal for enabling the tracking unit and disabling the tracking unit after a minimum tracking operation time of the tracking unit elapses.
摘要:
An on die termination controls a terminal resistance value in accordance with a test signal. The one die termination device comprises an on die termination control unit and an on die termination resistor unit and can change the terminal resistance value in accordance with the test signal, so that the terminal resistance can be easily analyzed. The one die termination control unit comprises a resistance control enable signal generating unit and a resistance control signal generating unit and generates at least one resistance increment signal and at least one resistance decrement signal. The on die termination resistor unit comprises a resistor and a plurality of switch units that are connected in parallel and is driven by a driving signal and uses the resistance increment signal and resistance decrement signal to control the on die termination resistance value.
摘要:
A small broadband monopole antenna including a shorted patch and a probe with a strip line that are electromagnetically coupled with each other. The probe with a strip line has a length of about λ/4, where λ is a wavelength. The strip line may be one of a spiral type, a folded type and a helix type. A resonance frequency of the antenna can be adjusted by varying the inductance and the capacitance of the resonance circuits. In addition, a double-band antenna or a single-band antenna having a broad bandwidth can be designed in accordance with application purpose of the antenna.
摘要:
A broadband internal antenna using double electromagnetic coupling is disclosed. The disclosed antenna may include: a first conducting member electrically connected to a feeding point; a second conducting member placed at a designated distance from at least a portion of the first conducting member so as to allow a first electromagnetic coupling with at least a portion of the first conducting member, and remaining in a floating state without being coupled to a ground and the feeding point; a third conducting member placed at a designated distance from the second conducting member so as to allow a second electromagnetic coupling with the second conducting member, and electrically connected to the ground; and a fourth conducting member extending from the third conducting member, for radiating RF signals. The disclosed antenna has the advantage of providing broadband characteristics within a limited size.
摘要:
A small broadband monopole antenna having a perpendicular ground plane with an electromagnetically coupled feed is provided. The small broadband monopole antenna may be realized as a small antenna having a size of 0.085λ0×0.085λ0×0.085λ0 by positioning a folded strip line under a shorted square disc. A resonance of the shorted square disc may be coupled to a resonance of the square folded strip line so as to form a wide bandwidth of about 36.6% of a central frequency of 2.313 GHz based on a VSWR≦2. Also, rectangular slits may be inserted into the perpendicular ground plane to improve a distortion of a radiation pattern that forms on the perpendicular ground plane so as to reduce a backward radiation by 3 dBi or more. The small broadband monopole antenna exhibits a forward radiation pattern similar to that of a general monopole antenna and has a gain of about 2.6 dBi within a bandwidth.
摘要:
A semiconductor memory device includes a delay locked loop configured to generate a delay locked loop (DLL) clock signal by delaying an external clock signal by a first delay time and generate a feedback clock signal by delaying the DLL clock signal by the second delay time, wherein the first delay time corresponds to a phase difference between the external clock signal and the feedback clock signal and an output enable control circuit configured to generate an output enable signal in response to CAS latency information and the first and second delay times after the delay locked loop performs a locking operation.
摘要:
An internal antenna for attaching to a terminal housing is disclosed. The antenna includes: a perpendicular structure formed in a perpendicular direction to a substrate and positioned in contact with an inner wall of a housing; a first conductive member electrically connected to a power feed and joined to the perpendicular structure to extend in a perpendicular direction to the substrate; and a second conductive member electrically connected to a ground, joined to the perpendicular structure, and separated by a particular distance from the first conductive member to extend in a perpendicular direction to the substrate. The first conductive member is joined to the inner wall of the housing to extend in a first direction orthogonal to the perpendicular direction, and the second conductive member is joined to the inner wall of the housing to extend in the first direction at a particular distance from the first conductive member.
摘要:
An antenna, where an end point of a radiator is shorted, using coupling matching is disclosed. The antenna includes a first conductive element connected electrically to a first ground, a second conductive element connected electrically to a feeding part, and spaced from the first conductive element by a certain distance, a third conductive element extending from the first conductive element and configured to output a RF signal, an end point of the third conductive element being coupled to a second ground. Here, the first conductive element and the second conductive element have a certain length so that a travelling wave is generated and enough coupling is provided. The antenna provides wide band characteristics while maintaining a low profile structure. The frequency characteristics of the antenna are not changed significantly due to external factors such as hand effect and head effect.