摘要:
An integrated circuit (IC) package assembly includes a substrate and an IC. The substrate defines a plurality of vias. Inner walls of the plurality of vias and surfaces of the substrate are coated with copper. The plurality of vias are filled with an adhesive. The copper coated on surfaces of the substrate among the plurality of vias are etched. The IC is fixed on the substrate by cohesion between the adhesive and the etched surfaces of the substrate.
摘要:
A structure of an electronic connector that can be plugged by inserting from top-to-down direction is disclosed. The electronic connector has a connector case and a Seat connector. The connector case has a plurality of terminal holes for receiving terminals, and a recession is formed at the center of the connector case. A buckle is formed underneath the recession, and has a protrusion hook. The seat connector case has a plurality of terminal holes for receiving terminals, and buckling troughs corresponding to the buckles on the connector case, and the buckling troughs have a buckling plate extending there-from.
摘要:
A mattress encasement made of bug impervious fabric provides a zipper opening for removal of the mattress. A foam pad is stitched at an end of the zipper closure such that when the zipper is located at or near the end, a channel is provided to prevent or obstruct the escapement of bed bugs via the channel and out from a mattress encased by the mattress encasement.
摘要:
A massaging apparatus comprises a frame, an elevating base, a kneading device and a pounding device. The frame is composed of a bottom base, two rails, an upper transversal rod and a threaded rod. The elevating base has two U-shaped boards symmetrically mounted at two sides thereon. A rod holder is attached to a lateral section of the elevating base to combine with the threaded rod. The kneading device comprises a first motor, divider and multiple kneading rings in pairs. The pounding device comprises a second motor, two first bearing mounts, a transmitting shaft, two pulling arms, two second bearing mounts and two pounding arms. When both motors actuate individually or simultaneously, the kneading device and the pounding device provide the kneading efficiency and the pounding efficiency respectively and at the same time.
摘要:
The present invention discloses a two-tier call admission control algorithm in IEEE 802.11 WLAN. The two-tier call admission control algorithm is given to improve the overall system throughput and guarantee the quality of service of every single user in the WLAN.
摘要:
An extension ladder with improved mechanism includes a plurality of ladder sections, connection kits, locking mechanism, and transverse step portions; wherein each ladder section is a hollow rung, and the caliber of the rung becomes smaller when it is in a higher location. The upper ladder section and lower ladder section can be interconnected and fit each other; said connection kits are horizontally provided in the upper end of said ladder section. The internal part of said connection kit is provided with a locking mechanism to snap-fit into the through hole of said ladder section to secure the extension between each ladder section. The outside of said locking mechanism is covered by the transverse step portion, by the improved locking mechanism, the extension ladder can be assembled easily and firmly for providing superior safety to people, even when an external force is applied.
摘要:
A receiver includes a Viterbi-like equalizer that provides diversity combining of soft values to produce reliability information. The output reliability information at time k is the average of the first reliability information at time k and the second reliability information at time (k−1) after being normalized by the noise power. The first reliability information at time k is the difference between the two accumulated metrics of the two preceding nodes arriving at the same node having the global minimum node metric at time k over all transitions of all states. The second reliability function at time k is the difference between the best accumulated metric characterized by the last (L−1) bit being binary “one” and the best accumulated metric characterized by the last (L−1) bit being binary “zero.”
摘要:
In the method according to the present invention, a signal from a mobile station is received. The standard deviation of the symbol error rate is determined, and power control with adaptive adjustment of an amount of change in the target signal-to-noise ratio is performed based on the determined standard deviation of the signal error rate and a target associated therewith.
摘要:
Soft handoffs in an IS-95 CDMA system or other wireless communication system are controlled using an enhanced set of soft handoff parameters which allow the system to adapt more readily to changing radio frequency (RF) conditions. In an illustrative embodiment, values for particular ones of the soft handoff parameters are selected in accordance with a set of rules, including rules such as, e.g., select the minimum value of add threshold among the members of an active set of pilots for a given mobile station; select the maximum value of drop threshold among the members of the active set; select the minimum value of drop threshold timer among the members of the active set; and select the minimum value of comparison threshold among the members of the active set. A quality measure is then determined for each of the members of the active set, based on one or more of the selected soft handoff parameter values and values of one or more additional parameters, e.g., add intercept, drop intercept and slope parameters, associated with those members. Particular values of the additional parameters are then selected based on the quality measures. The selected parameter values are then utilized in a soft handoff process, e.g., in a soft handoff process in which the given mobile station is directed to handoff from a primary base station to another base station of the system.