摘要:
A direct memory access controller (DMAC) is disclosed. In one case, the DMAC is configured to manage a DMA transmission of mass data with non-continuous addresses with a nonvolatile memory. The DMAC has to transmit them in batches according to their respective continuous addresses but, different from the prior art systems, does not interrupt a CPU for each batch of the DMA transmissions. In a DMA transmission between a functional device and the nonvolatile memory, a central processor configures a link-list of cluster addresses, which is obtained from a FAT (i.e., a file allocated table) in the nonvolatile memory and may be non-continuous, in a logic address buffer. Then, a divide unit provided in the DMAC divides a non-continuous link-list of cluster addresses from the logic address buffer into a plurality of continuous sub-link-list of cluster addresses, thus the DMAC can configure each batch of DMA transmission according to the continuous sub-link-list of cluster addresses without causing impact on the CPU.
摘要:
A method, apparatus and system provide for efficient use of communication resources for providing broadcast services in a communication system. A receiver receives a first broadcast controller identification from a first base station, and a second broadcast controller identification from a second base station. A controller coupled to the receiver determines whether the first and second broadcast controller identifications are associated with use of a common set of broadcast parameters. A transmitter transmits a request for transmission of a new set of broadcast parameters when the first and second broadcast controller identifications are not associated with use of the common set of broadcast parameters. After receiving the new set of broadcast parameters, the receiver uses the new set of broadcast parameters for receiving broadcast services.
摘要:
A method, apparatus and system provide for efficient use of communication resources for providing broadcast services in a communication system. A receiver receives a first broadcast controller identification from a first base station, and a second broadcast controller identification from a second base station. A controller coupled to the receiver determines whether the first and second broadcast controller identifications are associated with use of a common set of broadcast parameters. A transmitter transmits a request for transmission of a new set of broadcast parameters when the first and second broadcast controller identifications are not associated with use of the common set of broadcast parameters. After receiving the new set of broadcast parameters, the receiver uses the new set of broadcast parameters for receiving broadcast services.
摘要:
A particulate material comprising cerium oxide particles having a secondary particle size distribution in a range of 80 nm to 199 nm and a density of at least 6.6 g/cm3.
摘要翻译:一种颗粒材料,其包含二氧化铈颗粒,其二次粒度分布在80nm至199nm的范围内,密度至少为6.6g / cm 3。
摘要:
An optical lithography method is disclosed that uses double exposure of a reusable template mask and a trim mask to fabricate regularly-placed rectangular contacts in standard cells of application-specific integrated circuits (ASICs). A first exposure of the reusable template mask with periodic patterns forms periodic dark lines on a wafer and a second exposure of an application-specific trim mask remove the unwanted part of the dark lines and the small cuts of the dark lines left form the rectangular regularly-placed contacts. All contacts are placed regularly in one direction while unrestrictedly in the perpendicular direction. The regular placement of patterns on the template mask enable more effective use of resolution enhancement technologies, which in turn allows a decrease in manufacturing cost and the minimum contact size and pitch. Since there is no extra application-specific mask needed comparing with the conventional lithography method for unrestrictedly-placed contacts, the extra cost is kept to the lowest. The method of the invention can be used in the fabrication of standard cells in application-specific integrated circuits (ASICs) to improve circuit performance and decrease circuit area and manufacturing cost.
摘要:
A side key assembly (10) and a portable electronic device (200) using the side key assembly (10) is provided. The side key assembly (10) includes a key cover (12), a soft portion (142) and a hard portion (144) that can be firmly adhered to a housing of the portable electronic device □200□. Using this structure, the opportunity for dust or water to enter the portable electronic device (200) is reduced.
摘要:
A wireless telecommunications system includes a base station, a plurality of remote stations, a first channel for general page messages containing paging information and broadcast databurst message references, and an auxiliary channel for broadcast databurst notification indicators for the purpose of increasing standby time in remote stations configured to receive broadcast databurst messages.
摘要:
A focus adjusting mechanism (50) for use in a portable electronic device (100) with a lens module (40) is provided. The lens module includes a lens barrel (42) and a lens barrel holder (44). The lens barrel is threaded into the barrel holder. The focus adjusting mechanism includes a driving member (52), a follower (54) and a transmission rod (56). The driving member has a plurality of circumferential teeth (5242) formed thereon. The follower has a plurality of linear teeth (5472) formed thereon. The linear teeth engage with the circumferential teeth for transforming the rotation of the driving member to the linear movement of the follower. The transmission rod is disposed between the follower and the lens barrel to transform the linear movement of the follower into the rotation movement of the lens barrel relative to the lens barrel holder.
摘要:
Various techniques for synchronizing illumination with an audio signal are disclosed. According to one aspect of the techniques, an audio signal continuously is received and processed one phase or period at a time in an analyzing or detecting unit. From one phase of the audio signal, a set of light controlling parameters are determined from a look-up-table. These light controlling parameters are used to adjust duty cycles of square waves used to drive a plurality of light sources such that the illumination produced is in accordance with the audio signal.