322results about How to "Short delay time" patented technology

There is provided a transmit antenna array device with at least two antennas and a method thereof in which a transmission beam is appropriately formed based on a weight vector to be transmitted to a specific mobile station in a mobile communication system. For this purpose, a base station device has a reverse processor for processing a reverse signal received through the antenna array, a forward fading information extraction unit for extracting forward fading information from the received reverse signal, a beam formation controller for generating a weight vector for formation of a transmission beam using the forward fading information and the received reverse signal, and a forward processor having a transmission beam generator for generating a transmission beam for a transmission message based on the weight vector. A mobile station device has a forward processor for processing a received forward signal, a forward fading estimator for estimating forward fading information of the forward signal for each path, a forwarding fading encoder for combining the estimated forward fading information and encoding the combined forward fading information, and a reverse processor for multiplexing the encoded forward fading information with a transmission message and feeding back the forward fading information in the multiplexed signal to a base station.

A reciprocating two-stroke uniflow internal combustion (IC) cylinder and multiple cylinder engine, the cylinder having a cylinder wall and a cylinder head, the cylinder head having an exhaust port, a fuel injector, and a spark means disposed through the cylinder head, a piston reciprocally mounted in the cylinder for movement alternately through compression and power strokes, and a scroll plenum extending unidirectional around the outside of the cylinder wall and having an inlet and a plurality of swirl ports disposed through the cylinder wall providing fluid communication from the scroll plenum into the cylinder chamber, wherein the plurality of swirl ports enter the cylinder chamber tangentially with respect to the axial centerline of the cylinder, and wherein the plurality of swirl ports are subject to opening and closing in response to movement of said piston.

The DLL circuit detects a frequency of an external clock signal and adjusts a coarse delay during a DLL circuit operation, thereby quickly terminating a feedback operation of the DLL circuit and having a reduced circuit area of a delay line. Therefore, the DLL circuit can be used for next generation high-integration and high-frequency memory devices such as DDR2 SDRAMs.

A payment approval system and a method for approving a payment for credit cards are provided for providing efficient processing while maintaining accuracy in detection of fraud usage of credit cards with an IC chip. Fraud parameters obtained by modeling a pattern of fraud usage is stored in the IC chip equipped in the IC credit card to use for payment approval to achieve improved reliability of offline approval. When offline approval process finds a possibility of fraud usage, online approval for more detailed statistical analysis processing is requested to a host computer. When update information of the fraud parameter used for the judgment is transmitted together with the request for approval and the newest fraud parameter created by analyzing the newest transaction trend etc. is confirmed to have been updated at the host computer, the newest fraud parameter along with the approval result from the host computer is transmitted to the IC terminal to update the fraud parameter in the IC chip to the up-to-date state.

The invention discloses a method and a device for transmitting multi-channel service, which belongs to the technical field of light transmission. The method comprises the following steps: receiving bandwidth information of TCONTs (transmission container) of all nodes; dividing the payload zone of a GTH (general transfer system) frame into a preset number (n) of mathematical arrays, wherein each mathematical array includes a specified number of time slots, the interval between any two adjacent time slots in each mathematical array is n, and n is a natural number; calculating the time slot location of the mathematical arrays that the TCONT of each node occupies in the payload zone according to the bandwidth information of the TCONTs of all the nodes; and interleaving the TCONTs of the local nodes in the corresponding time slots from a specified frame according to the time slot locations of the mathematical arrays that the TCONTs of the local nodes occupy in the payload zone so as to obtain a GTH frame and transmit the GTH frame. The device comprises a receiving module, a bandwidth information processing module and a frame processing module. The invention can realize asynchronous adaptation of multichannel service through uniform distribution of time slots.

A delay circuit includes: an input signal line (IN) through which an input signal is inputted; a capacitor (106) charged with and discharging electric charge; a first switch (101) connected to the input signal line and operating according to the input signal when the capacitor is to be charged with electric charge; a second switch (102) connected to the input signal line and operating according to the input signal when the electric charge is to be discharged from the capacitor; and a comparison circuit (107) comparing a voltage of the capacitor and a reference voltage to output a delay signal of the input signal.