Abstract:
A lithium ion secondary battery is provided. The lithium ion secondary battery generally comprises an electrode assembly, a container for accommodating the electrode assembly; and an electrolyte. The electrode assembly comprises two electrodes having opposite polarities and a separator. The separator comprises a porous membrane comprising clusters of ceramic particles. The porous membrane is formed by bonding the particle clusters with a binder. Each particle cluster is formed either by sintering or by dissolving and re-crystallizing all or a portion of the ceramic particles. The ceramic particles comprise a ceramic material having a band gap. Each particle cluster may have the shape of a grape bunch or a lamina, and may be formed by laminating scale or flake shaped ceramic particles.
Abstract:
An output driver has an output multiplexor and an output current driver. The output multiplexor receives a data signal and outputs a q-node signal. The output current 5 river receives the q-node signal and drives a bus based on the q-node signal. The output multiplexor processes the data signal in various ways to generate the q-node signal. The output current driver is responsive to current control bits to select a amount of output drive current. In addition, the output multiplexor is controlled such that the output impedance of the output current driver is maintained within a predetermined range.
Abstract:
A central control system for airconditioner(s) and a method for controlling the same. The central control system can centrally control a plurality of airconditioners connected to the same communication network. In the system, a protocol converter connected to a central controller converts a communication standard of a signal communicated between the airconditioners and the central controller into another communication standard, acquires connection state information by scanning connection state information of individual airconditioners, and transmits the acquired information to the central controller, such that a manager can correctly monitor an airconditioner state using the central controller, resulting in the implementation of a reliable control system.
Abstract:
A tablet cassette control method of a medication dispensing and packaging system having a microcomputer, a medication dispensing unit with a plurality of tablet cassettes each mounted on a cassette rack, and a medication packaging unit disposed below the dispensing unit to package tablets released from the dispensing unit into a series of tablet containing paper bags, the control method comprises confirming the mounting of the tablet cassette on the cassette rack, applying a power to a memory in the tablet cassette to activate the memory, retrieving tablet information saved in the memory to the microcomputer, and breaking the power from the memory while maintaining operation of the system.
Abstract:
Disclosed herein is a portable sliding-up digital communication device. The portable sliding-type digital communication device comprises a body housing having a display unit located on the top surface thereof, the display unit comprising a first display area and a second display area disposed adjacent to the first display area, a sliding cover moved along the body housing in a sliding fashion such that the sliding cover is apart from the body housing or close to the body housing for exposing or covering the second display area, and holding means formed at the rear surfaces of the body housing and the sliding cover for maintaining a final sliding coupling position of the sliding cover to the body housing. The first display area is constantly viewable and the second display area is selectively coverable depending upon the position of the sliding cover.
Abstract:
An SOI MOSFET having a body contact for preventing the floating body effect is provided. The body contact is a trench perforating a body and a buried oxide layer to a semiconductor substrate. The trench is filled with a conductive material to electrically connect the body to the semiconductor substrate. Impurity ions are implanted into a predetermined region of the semiconductor substrate in contact with the lower portion of the body contact to form an ohmic contact. In the SOI MOSFET, an additional metal interconnection line is not needed to supply power to the body. Also, malfunction of a circuit due to stray capacitance of a contact can be prevented.
Abstract:
Delay locked loop circuitry for generating a predetermined phase relationship between a pair of clocks. A first delay-locked loop includes a delay elements arranged in a chain, the chain receiving an input clock and generating, from each delay element, a set of phase vectors, each shifted a unit delay from the adjacent vector. The first delay-locked loop adjusts the unit delays in the delay chain using a delay adjustment signal so that the phase vectors span a predetermined phase shift of the input clock. A second delay-locked loop selects, from the first delay-locked loop, a pair of phase vectors which brackets the phase of an input clock. A phase interpolator receives the selected pair of vectors and generates an output clock and a delayed output clock, the amount of the delay being controlled by the delay adjustment signal of the first delay-locked loop circuitry. A phase detector compares the delayed output clock with the input clock and adjusts the phase interpolator, based on the phase comparison, so that the phase of the delayed output clock is in phase with the input clock. As a result, there is a predetermined phase relationship between the output clock and the input clock, the phase relationship being the amount of delay between the output clock and the delayed output clock. Different phase relationships between the input and output clock are possible depending on the number of unit delays used in the path of the delayed output clock or the output clock.
Abstract:
An output driver has an output multiplexor and an output current driver. The output multiplexor receives a data signal and outputs a q-node signal. The output current driver receives the q-node signal and drives a bus based on the q-node signal. The output multiplexor processes the data signal in various ways to generate the q-node signal. The output current driver is responsive to current control bits to select a amount of output drive current. In addition, the output multiplexor is controlled such that the output impedance of the output current driver is maintained within a predetermined range.
Abstract:
Delay-locked loop circuitry for generating a predetermined phase relationship between a pair of clocks. A first delay-locked loop includes a set of delay-producing elements arranged in a chain, the chain receiving an input clock and generating, from each delay element, a set of phase vectors, each shifted a unit delay from the adjacent vector. The first delay-locked loop adjusts the unit delays in the delay chain using a delay adjustment signal so that the phase vectors span a predetermined phase shift of the input clock. A second delay-locked loop selects, from the first delay-locked loop, a pair of phase vectors which brackets the phase of an input clock. A phase interpolator receives the selected pair of vectors and generates an output clock and a delayed output clock, the amount of the delay being controlled by the delay adjustment signal of the first delay-locked loop circuitry. A phase detector compares the delayed output clock with the input clock and adjusts the phase interpolator, based on the phase comparison, so that the phase of the delayed output clock is in phase with the input clock. As a result, there is a predetermined phase relationship between the output clock and the input clock, the phase relationship being the amount of delay between the output clock and the delayed output clock. Different phase relationships between the input and output clock are possible depending on the number of unit delays used.
Abstract:
Circuitry for adjusting the phase of an incoming periodic signal, typically a clock signal, throughout the entire period of the periodic signal. Phase adjustment circuitry has high resolution and employs only the number of delay elements in a delay chain necessary to span at least the period of the incoming signal or at least half the period in the case of dual chains receiving complementary clocks. Phase adjustment circuitry includes a delay chain of having a plurality of taps, a boundary detector for indicating when a tap is at a phase boundary of the incoming periodic signal, and selection circuitry for selecting one of the taps from the delay chain based on the boundary detector output and the selection circuitry input such that the selected tap is the desired phase adjustment of the incoming periodic signal and that the delay of the incoming signal is adjustable across its phase boundaries. Phase interpolation between the taps of the delay chain is employed to increase the resolution of the adjustment to the periodic signal. Duty cycle correction of the input clock and the selected output clock is employed to improve accuracy.