Abstract:
A multiband antenna includes a long radiating branch, a short radiating branch, a short strip, a feed point, a grounding portion, a connecting portion, a long parasitic strip, and a short parasitic strip. The feed point, the long radiating branch, the short radiating branch, and the short strip are in a first plane. The grounding portion connects to the short strip. The connecting portion connects the long radiating branch, the short radiating branch, and the short strip. The long radiating branch, the short strip, and the connecting portion form a first inverted-L shaped antenna structure. The short radiating branch, the short strip, and the connecting portion form a second inverted-L shaped antenna structure. The long parasitic strip and the short parasitic strip are in a second plane and respectively connected to the grounding portion. The first plane is parallel to the second plane.
Abstract:
An enhanced library accessible by an EDA tool can include a base curve database and a plurality of curve data sets. Each curve data set refers to a standard cell having certain timing characteristics. To determine those timing characteristics, each curve data set identifies at least one base curve (in the base curve database) as well as a starting current, a peak current, a peak voltage, and a peak time. In one embodiment, each base curve can be normalized. The base curve(s), the starting current, peak current, peak voltage, and peak time can accurately model the functioning of the IC device, e.g. represented by an I(V) curve.
Abstract:
A method of gasification burner online feeding for a coal-water slurry gasifier, where a coal-water slurry line and an oxidizer line are both protected by shield gas. The method may realize online, pressurized and continuous feeding of the gasification burners which are fixed after they stalled for other reasons than their own, thus greatly reducing the probability of accidental shutdown of gasifiers and improving the reliability of long-term service of the multi-nozzle opposed gasifier.
Abstract:
Intermediate resolution-enhancement state layouts are generated based upon an original non-resolution enhanced layout of an integrated circuit and an associated resolution-enhanced layout. The intermediate resolution-enhancement state layout includes fragments corresponding to parts of the original layout and biases associated with the fragments, where the biases indicate distances between the fragments and the resolution-enhanced layout. The fragments are also assigned attributes such as fragment type, fragment location, and biases. The intermediate resolution-enhancement state layouts can be combined to generate the layout for a full chip IC. Two or more intermediate resolution-enhancement state layouts are assembled and are locally reconverged to adjust the resolution enhancement associated with the intermediate resolution-enhancement state layouts and obtain the intermediate resolution-enhancement state layouts for the full IC.
Abstract:
The present invention relates to an fault electric arc protection circuits which comprising a power source, a signal sampling device, a signal processing module, an arc detection control device and a power cut-off module; the signal sampling device comprising a matching resistor R3 and a current transformer without iron core; the signal processing module comprising a rectifying tube D1 and a voltage divider R2; the arc detection control device is a SCM; the power cut-off module comprising a set of audion that orderly connected, and an actuator portion; one end of the current transformer is grounded and the other end is connected to the rectifying tube D1 thus to connect to the SCM; the matching resistor R3 is parallelly connected between the rectifying tube D1 and the current transoformer, and the voltage divider R2 is parallelly connected between the rectifying tube D1 and the SCM. This invention also provides a method for detecting arc-fault, comprising the steps of S1, sampling the current signal of the circuits to be protected in real time, and outputting the sampled signal; S2, processing the sampled signal, then outputting the processed result; S3, detecting the processed result, and then determining whether an arc symbol has occurred based on the detected result. The advantages of the present invention is, when using the electric equipment, once a continuous fault electric arc occurred in the wires, the protection circuits can detect the fault electric arc and cut off the power, thus to prevent the fire caused by the fault electric arc.
Abstract:
This invention provides a device, method and system for implementing an echo control on hand-free phones, including an echo eliminator as a primary component. The method in use is listed as follows.First of all, local speech signals on a sending channel as well as remote speech signals on a receiving channel are sampled. Then call status of a current network is determined based on energy of the obtained remote and local speech signals samples. Finally, a corresponding echo control treatment to the speech signals traveling through the sending channel according to the resulting call status is given. As a result, the echo in a digital hand-free communication system can be efficiently eliminated.
Abstract:
Present herein is a multirate transceiver wherein data can be received at a first data rate and transmitted at a second data rate. The transceiver device comprises a first interface for receiving data at one data rate a mapper that can map data from a first rate to the second rate, and a second interface for transmitting the data at the second data rate.
Abstract:
The present invention relates to novel dihydronaphthalene compounds, compositions, methods for using the same, and processes for preparing the same. The present invention also relates to novel total synthesis approaches for preparing these compounds. In addition, the present invention relates to methods of producing quantities of isomers of these compounds and separating and purifying them using chiral separation techniques. The present invention also relates to methods of producing quantities of a single isometric compound without the need for chiral separation techniques.
Abstract:
The publishing system and method automates at least some portion of a publishing process. The system publishes content using metadata, rights templates and/or specifications, publishing profiles and business rules.
Abstract:
Transient edges are used to define shapes in an integrated circuit layout for optical proximity correction. A first variation of the shape includes a first edge, a second edge satisfying an edge transition angle condition in relation to the first edge, and one or more first transition edges connected between the first edge and the second edge. A second variation of the shape includes a third edge, a fourth edge satisfying the same edge transition angle condition in relation to the third edge, and one or more second transition edges connected between the third edge and the fourth edge. Although the first transition edges are different from the second transition edges, both the first and second variations of the shape are identified as having the same shape, thereby allowing flexibility and efficiency in the shape identification process for optical proximity correction.