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    • 2. 发明授权
    • Perpendicular magnetic recording transducer with AFM insertion layer
    • 带AFM插入层的垂直磁记录传感器
    • US08493693B1
    • 2013-07-23
    • US13436694
    • 2012-03-30
    • Yuankai ZhengQunwen LengMahendra PakalaCheng-Han Yang
    • Yuankai ZhengQunwen LengMahendra PakalaCheng-Han Yang
    • G11B5/127
    • G11B5/3906G01R33/093G11B5/3929H01F10/30H01F10/3254H01F10/3272H01L43/08
    • A magnetic sensor is configured to reside in proximity to a recording medium during use. The sensor includes a magnetic top shield and a magnetic bottom shield. A top sensor stack is under the magnetic top shield and includes magnetic sensing layers. A bottom sensor stack is between the magnetic bottom shield and the top sensor stack. The bottom sensor stack includes a magnetic seed stack above the bottom shield, an insertion stack above the magnetic seed stack, and an antiferromagnetic (AFM) layer on and in contact with the insertion stack. A pinned layer is above the AFM layer. An AFM coupling layer is above the pinned layer. In some aspects the insertion stack may include at least one of Ti, Hf, Zr, and Ta. In some aspect, the insertion stack includes a layer of elemental Ti. In other aspects, the insertion stack includes multilayer structures.
    • 磁传感器被配置为在使用期间驻留在记录介质附近。 传感器包括磁性顶部屏蔽和磁性底部屏蔽。 顶部传感器堆叠在磁性顶部屏蔽下方,并且包括磁感应层。 底部传感器堆叠位于磁性底部屏蔽和顶部传感器叠层之间。 底部传感器堆叠包括在底部屏蔽物上方的磁性种子​​堆叠,在磁性种子堆叠上方的插入堆叠,以及与插入堆叠接触并与其接触的反铁磁(AFM)层。 被钉扎层位于AFM层之上。 AFM耦合层位于钉扎层之上。 在一些方面,插入叠层可以包括Ti,Hf,Zr和Ta中的至少一种。 在一些方面,插入堆叠包括元素Ti层。 在其他方面,插入堆叠包括多层结构。
    • 10. 发明授权
    • Fast bit allocation method for audio coding
    • 用于音频编码的快速位分配方法
    • US07328152B2
    • 2008-02-05
    • US10879615
    • 2004-06-28
    • Cheng-Han YangHsueh-Ming Hang
    • Cheng-Han YangHsueh-Ming Hang
    • G10L19/02
    • G10L19/032G10L19/0017
    • A fast bit allocation algorithm for audio coding is disclosed. A virtual Huffman codebook model is referred in a trellis-based optimization approach to obtain a set of optimized scale factors, and then the set of optimized scale factors is referred in a trellis-based optimization approach to obtain a set of optimized Huffman codebooks. Therefore, the present invention can significantly reduce the amount of computation for the bit allocation. Further, according to the experimental data, the present invention can keep almost the same compression efficiency as the prior art JTB optimization. Hence, the present invention is more suitable for practical applications.
    • 公开了用于音频编码的快速位分配算法。 虚拟霍夫曼码本模型在基于网格的优化方法中被引用以获得一组优化的比例因子,然后在基于网格的优化方法中参考优化比例因子的集合以获得一组优化的霍夫曼码本。 因此,本发明可以显着地减少比特分配的计算量。 此外,根据实验数据,本发明可以保持与现有技术的JTB优化几乎相同的压缩效率。 因此,本发明更适用于实际应用。