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    • 1. 发明授权
    • Transmitting data over a communications channel
    • 通过通信通道传输数据
    • US08958499B2
    • 2015-02-17
    • US12997831
    • 2010-07-16
    • Robert W. Heath, Jr.Takao Inoue
    • Robert W. Heath, Jr.Takao Inoue
    • H04L25/49H04L27/00H04L25/03H04L5/00
    • H04L25/03961H04L5/0023H04L25/03949
    • Techniques for transmitting data over a communications channel are generally described. A value of a property of an inverse of a channel matrix corresponding to the communications channel may be calculated and compared to a threshold value. If the value of the property a first one of greater than or less than the threshold value, at least one transmit message may be altered using a vector perturbation technique to generate data symbols and the data symbols may be precoded using a channel inversion technique to generate precoded data symbols. If the value of the property is the other of greater than or less than the threshold value, the at least one transmit message may be precoded using a channel inversion technique to generate precoded data symbols.
    • 通常描述通过通信信道发送数据的技术。 可以计算与通信信道相对应的信道矩阵的逆的属性的值,并将其与阈值进行比较。 如果属性的值大于或小于阈值,则可以使用向量扰动技术来改变至少一个发送消息以生成数据符号,并且可以使用信道反演技术对数据符号进行预编码以产生 预编码数据符号。 如果属性的值是大于或小于阈值的另一个,则可以使用信道反转技术对至少一个发送消息进行预编码,以生成预编码的数据符号。
    • 8. 发明授权
    • Pouring method, device, and cast in vacuum molding process
    • 浇注方法,装置和铸造在真空成型过程中
    • US07757746B2
    • 2010-07-20
    • US12318098
    • 2008-12-22
    • Hiroyasu MakinoTaketoshi TomitaTakafumi ObaHiroaki SuzukiKenji MizunoToshiaki AndoYoshinobu EnomotoTakao InoueShizuo Takeda
    • Hiroyasu MakinoTaketoshi TomitaTakafumi ObaHiroaki SuzukiKenji MizunoToshiaki AndoYoshinobu EnomotoTakao InoueShizuo Takeda
    • B22C9/03
    • B22D18/04B22C9/03B22C21/01B22D23/06
    • A pouring method and a device in a vacuum sealed process to produce a thin-wall cast by using a mold framing for the a vacuum sealed process, and a as-cast product using the pouring method are provided. The pouring method comprises the steps of: sealingly covering the surface of a pattern plate by a shielding member; placing a mold framing on the shielding member and then putting a fill that does not include any binder in the mold framing; sealingly covering an upper surface of the fill and then evacuating an inside of the mold framing to suck the shielding member to the fill to shape the shielding member; removing the pattern plate from the shielding member, thereby forming a mold half that has a molding surface; forming another mold half in a similar way and mating the mold halves to define a molding cavity; pouring molten metal in the molding cavity; and releasing the negative pressure in the mold framing to take out a as-cast product, and further comprises the step of decompressing the molding cavity before pouring molten metal in the mated mold.
    • 提供了一种通过使用用于真空密封工艺的模架来生产薄壁铸造的真空密封工艺中的浇注方法和装置,以及使用浇注方法的铸造产品。 浇注方法包括以下步骤:通过屏蔽构件密封地覆盖图案板的表面; 将模具框架放置在屏蔽构件上,然后将不包括任何粘合剂的填充物放入模制框架中; 密封地覆盖填充物的上表面,然后抽空模具框架的内部以将屏蔽构件吸入填充物以使屏蔽构件成形; 从屏蔽部件移除图案板,从而形成具有模制表面的半模; 以类似的方式形成另一个半模并且配合半模以限定模制腔; 将熔融金属浇注在模腔中; 并释放模具框架中的负压以取出铸塑产品,并且还包括在将熔融金属浇注在配合模具中之前对模制空腔进行减压的步骤。