Abstract:
A technique implements forwarding operation shortcuts at a switch for multicast data traffic routed between subnetworks of a computer network. A first multicast frame is forwarded from the switch to a router, which peforms route processing and forwarding operations for a packet encapsulated within the frame. During execution of the operations, the router provides multicast flow and additional information concerning the routed packet to the switch in accordance with a novel multicast shortcut control protocol. The information is used by the switch to implement a novel multicast shortcut for subsequent frames received at the switch having the multicast packet flow.
Abstract:
A manufacturing method of semiconductor package structure includes: providing a first dielectric layer having multiple through holes; providing a second dielectric layer having multiple conductive vias and a chip-containing opening; laminating the second dielectric layer onto the first dielectric layer; disposing a chip in the chip-containing opening and adhering a rear surface of the chip onto the first dielectric layer exposed by the chip-containing opening; forming a redistribution circuit layer on the second dielectric layer wherein a part of the redistribution circuit layer extends from the second dielectric layer onto an active surface of the chip and the conductive vias so that the chip electrically connects the conductive vias through the partial redistribution circuit layer; forming multiple solder balls on the first dielectric layer wherein the solder balls are in the through holes and electrically connect the chip through the conductive vias and the redistribution circuit layer.
Abstract:
An audio device and an audio input/output method are described, which is coupled to an audio port, and includes a capacitor, a load, an output amplifying module, and an input amplifying module. The capacitor and the load are coupled to the audio port. The output amplifying module is operated at a first working voltage, for outputting a first audio signal to the audio port. A direct current (DC) level of the first audio signal is substantially zero volts. The input amplifying module is operated at a second working voltage, in order to receive a second audio signal from the audio port. When the audio port is in an output state, the output amplifying module is enabled and the input amplifying module is disabled, and when the audio port is in an input state, the input amplifying module is enabled and the output amplifying module is disabled.
Abstract:
The present invention deals with a methodology of incorporating carbon nanotubes (CNTs) into an epoxy matrix and thereby producing epoxy-based CNT nanocomposites. Both the pristine and ozonized CNTs are almost homogeneously dispersed into the resin by this approach. Compared with the pristine CNTs (p-MWCNTs), the ozonized ones (f-MWCNTs) offer considerable improvements on mechanical properties within the epoxy resin.
Abstract:
A manufacturing method of a bump structure having a reinforcement member is disclosed. First, a substrate including pads and a passivation layer is provided. The passivation layer has first openings, and each first opening exposes a portion of the corresponding pad respectively. Next, an under ball metal (UBM) material layer is formed on the substrate to cover the passivation layer and the pads exposed by the passivation layer. Bumps are formed on the UBM material layer and the lower surface of each bump is smaller than that of the opening. Each reinforcement member formed on the UBM material layer around each bump contacts with each bump, and the material of the reinforcement member is a polymer. The UBM material layer is patterned to form UBM layers and the lower surface of each UBM layer is larger than that of each corresponding opening. Hence, the bump has a planar upper surface.
Abstract:
Techniques for and apparatus capable of implementing packet detection and signal recognition in wireless communications systems are disclosed. In particular, the disclosed techniques and apparatus incorporate at least one of relative energy detection operable on assessment of a relative energy threshold for an inbound signal borne across an RF channel, carrier sense operable upon on assessment of at least one of a peak-to-sidelobe ratio and peak-to-peak distance defined by the inbound signal, and comparison operable upon demodulated data corresponding to the inbound signal as compared to predetermined preamble data. Clear channel assessment is performed based on determinations undertaken by one or more of the aforementioned relative energy detection, carrier sense and comparison operations.
Abstract:
A two-level transformation scheme to enable a practical fast mesh-free method is disclosed. The first level transformation transforms the original chosen mesh-free shape function to a first transformed mesh-free shape function that preserves Kronecker delta properties. The first transformed mesh-free function allows the essential boundary conditions to be imposed directly. The second-level transformation scheme employs a low pass filter function served as a regularization process that filters out the higher-order terms in the monomial mesh-free approximation obtained from the first-level transformation scheme with desired consistency and completeness conditions. This integration scheme requires only a low-order integration rule comparing to the high order integration rule used in the traditional mesh-free methods. The present invention simplifies the boundary condition treatments and avoids the usage of high-order integration rule and therefore is more practical than the traditional mesh-free methods.
Abstract:
Systems and methods for improving efficiency of a voltage booster for read mode operations of memory cells and discharging a boosted supply voltage safely are disclosed. The system contains a plurality of boosting stages coupled in series including a plurality of boosting capacitors, a plurality of isolators. The isolator can be used to prevent boosting of one capacitor from negatively affecting a charge of the other adjacent capacitor to improve the efficiency of the voltage booster. A voltage booster circuit can accurately boost a supply voltage with a suitable number of boosting stages depending on a level of the supply voltage being provided. Since boosters contain a suitable number of boosting stages, the boosters can discharge a boosted voltage sequentially. With this sequential discharge method, memory cells can not have a hot switching problem.
Abstract:
The present invention is directed to compounds of formulae (I and II)(wherein A, D, E, X, l, m, n and R1 through R18 are defined herein) which are useful as modulators of chemokine receptor activity. In particular, these compounds are useful as modulators of the chemokine receptor CCR-2.
Abstract:
A LED reflective spherical lamp is disclosed. The spherical lamp comprises a transparent spherical lamp hood, a leading LED beam assembly, a linkage of the leading LED beam assembly, a heat dissipation block having good thermal conductivity and a securing base, characterized in that the leading LED beam assembly comprises a threaded connection tube, a converging lense and a conductive base board for mounting LED, and the threaded connection tube screws to a screw hole at the bottom of the transparent spherical lamp hood and the threaded connection tube extends into a tube opening of the lamp hood, overlappingly connecting the converging lense, the other end of the threaded tube is a peg tube wall for peggingly connection of a corresponding recess of the conductive base board such that the LED on the conductive base board face the converging lense, and the other end of the conductive base board mounting the LED is connected to the heat dissipation block, and then is secured with the securing base, thereby when LED is lighted, LED beams pass through the transparent lense into the lamp hood such that the entire lamp hood is lighted.
Abstract translation:公开了一种LED反射球形灯。 球形灯包括透明球形灯罩,LED LED组件,LED LED组件的连杆,具有良好导热性的散热块和固定底座,其特征在于,LED灯组件包括螺纹连接 管,会聚透镜和用于安装LED的导电基板,并且螺纹连接管螺钉到透明球形灯罩底部的螺孔,螺纹连接管延伸到灯罩的管开口中,重叠连接 会聚透镜,螺纹管的另一端是用于将导电基板的相应凹部彼此连接的栓管壁,使得导电基板上的LED面向会聚透镜,导电基底的另一端 板安装LED连接到散热块,然后用固定底座固定,因此当LED点亮时,LED b 电子束通过透明透镜进入灯罩,使整个灯罩点亮。