摘要:
A method for fabricating a chip package structure is disclosed. One or plural patterned plates are used to fabricate the inner circuits and the outer circuits, and some fabricating steps can be proceeded repeatedly to form a stack structure, and after a protective layer is formed, the carrier is removed. Using the plate as a mask to fabricate the circuits can enhance the yield and simplify the fabricating processes of the package. Further, the removed carrier can be recycled to reduce the production cost.
摘要:
The present invention relates to a load balancing method for a wireless local area network, which including the following steps: initializing the load balancing group, self-organizing to select an online access point from the load balancing group as a load balancing agent center, each access point of the said balancing group managing and processing the load balance in accordance with the load level and balance optimizing policy, therefore implements the network load balance. The method of the invention improves reliability of the network load information, prevents the load information from invalidly broadcasting in the wireless local area network, therefore reduces the additional overhead for managing the load balance of the wireless network, particularly in the network that having three layers switching equipment, self-organizing to select the agent center can utilize the network resource in effect, therefore managing the dynamic load balance information much more effect, reducing the dependence on the upper server, and managing the network much more flexible.
摘要:
A feedforward nonlinearity cancellation scheme is used to improve the linearity of a low noise amplifier (LNA). An LNA incorporates a main amplifier and an auxiliary amplifier couple to receive the same input. The outputs of the main amplifier and the auxiliary amplifier are also coupled. The auxiliary amplifier may be implemented as a very low power auxiliary amplifier having a very low linearity. The output of the auxiliary amplifier contains third-order intermodulation (IM3) products that are of similar amplitude, but opposite phase, to the IM3 products generated by the main amplifier. With the outputs of the main amplifier and the auxiliary amplifier coupled, their respective IM3 products are summed together and effectively cancel each other out. As a result, the output of the LNA contains substantially no IM3 products, and the linearity of the LNA is substantially improved.
摘要:
A snow shovel that has a shaft, a handle, and a scoop to allow the user to remove unwanted snow and ice from a surface. This shovel includes a heated bottom edge with a vibrating motor to melt and dislodge ice or snow from a surface. The shovel also includes a vibration-reducing mechanism to dampen the vibrations that a user might feel during the use of this shovel, along with sensors that detect when the heated edge and motor should be turned on or off.
摘要:
An ultra-wide band frequency modulator is disclosed. The frequency modulator includes a direct modulation phase lock loop that receives a small component. The frequency modulator also includes a delay module that produces a plurality of delay lines. The frequency modulator further includes an edge selector that receives a large component and the plurality of delay lines.
摘要:
The present invention provides a constellation mapping method, and the method includes: flipping a plurality of bits in each modulation symbol unit to be mapped in part of or all of modulation symbol units to be mapped of a bit sequence to be mapped; and mapping each flipped modulation symbol unit to be mapped as a modulation symbol in a constellation. By means of the present invention, the phenomenon that consecutive bits have the same reliability can be effectively avoided by changing unevenness of reliability distribution of the consecutive bits, and at the same time, the link performance can be improved.
摘要:
A control system for a vehicle includes first and second modules. The first module receives input from an operator of the vehicle via an input device, wherein the operator input includes a change to an operating parameter of a vehicle system. The second module selectively adjusts a resistance of the input device based on the operator input and a predetermined threshold. A method for controlling a vehicle includes receiving input from an operator of the vehicle via an input device, wherein the operator input includes a change to an operating parameter of a vehicle system, and selectively adjusting a resistance of the input device based on the operator input and a predetermined threshold.
摘要:
Techniques for calibrating digitally controlled oscillators (DCOS) are disclosed. In one aspect of the disclosure, an initial set of control codes for operating the DCO with a coarse frequency tuning bank with multiple overlapping coarse frequency tuning segments (LTBs) and one fine main frequency tuning bank (MTB) is determined. A range of output frequencies produced from the initial set is identified. Instances of overlap are identified in the frequency range between consecutive LTB segments. An offset in the MTB is added that corresponds to the overlap instance between consecutive LTBs to establish a revised set. The revised control codes are utilized to tune the DCO over the desired frequency range.
摘要:
A terminal, multipoint control unit, system and method for implementing high definition multiple pictures are provided by the present invention. The method comprises the following steps of: a Multipoint Control Unit (MCU) calculating a high definition video code stream format according to video conference control information, and sending a capability set containing the high definition video code stream format to a selected terminal; based on the high definition video code stream format in the capability set, the selected terminal encoding a high definition video image and sending the encoded high definition video code stream to the MCU; according to the video conference control information, the MCU synthesizing the received high definition video code stream image into multiple pictures, and obtaining the high definition multi-picture video code stream image and sending it to the terminals attending the conference.