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    • 41. 发明申请
    • APPARATUS AND METHOD OF RECORDING/REPRODUCING DIGITAL BROADCAST DATA
    • 记录/复制数字广播数据的装置和方法
    • US20080069544A1
    • 2008-03-20
    • US11942571
    • 2007-11-19
    • Sung ChoJea YooKang SeoByung Kim
    • Sung ChoJea YooKang SeoByung Kim
    • H04N7/26
    • H04N9/8042H04N5/85
    • The present invention relates to method and apparatus of recording/reproducing a non-MPEG formatted digital TV broadcast signal on/from a writable medium. The present recording method, when a digital TV broadcast signal composed of DirecTV transport packets is received, extracts data contained in DirecTV transport packets to form an A/V elementary stream, packetizes the A/V elementary stream into PES (Packetized Elementary Stream) packets, slices the PES packets into 184-byte stream pieces to produce a series of 188-byte Transport Packets defined in MPEG standard, and writes the series of Transport Packets sequentially on a recording medium. The present method can record a non-MPEG type of transport stream in MPEG recording format and reproduce the recorded transport stream to original DirecTV transport stream, whereby an applicability of a digital recorder is improved.
    • 本发明涉及在可写介质上记录/再现非MPEG格式的数字TV广播信号的方法和装置。 本记录方法,当接收到由DirecTV传输分组组成的数字电视广播信号时,提取包含在DirecTV传输分组中的数据以形成A / V基本流,将A / V基本流打包成PES(分组化基本流)分组 将PES数据包切割成184字节的流片段,以产生一系列以MPEG标准定义的188字节传输数据包,并将一系列传输数据包顺序写入记录介质上。 本方法可以以MPEG记录格式记录非MPEG类型的传输流,并将记录的传输流再现到原始DirecTV传输流,从而提高数字记录器的适用性。
    • 43. 发明申请
    • Optical code-division multiple-access network system employing central code assignment scheme and optical encoder and decoder for the network system
    • 采用中央代码分配方案的光码分多址网络系统和网络系统的光编码器和解码器
    • US20070121556A1
    • 2007-05-31
    • US11603477
    • 2006-11-22
    • Sung ChoKwang Kim
    • Sung ChoKwang Kim
    • H04B7/216
    • H04J14/005
    • Provided are an optical code-division multiple-access (O-CDMA) network system and method and an optical encoder and decoder in the system. The O-CDMA network system includes a central station and at least one subscriber unit. In a code assigning method of the optical code-division multiple-access network system, first, the subscriber unit transmits a code assignment request signal to the central station. Then, the central station assigns a code to the subscriber unit. Thereafter, the subscriber unit programs an encoding and decoding code based on the assigned code. The optical encoder and decoder includes a refraction grating, arrayed optical waveguides, optical switches, and optical reflectors. Therefore, a central code assignment scheme can be achieved, and programming of the encoder and decoder is possible.
    • 在系统中提供了光码分多​​址(O-CDMA)网络系统和方法以及光编码器和解码器。 O-CDMA网络系统包括中央站和至少一个用户单元。 在光码分多址网络系统的码分配方法中,首先,用户单元向中心站发送码分配请求信号。 然后,中心站向用户单元分配一个代码。 此后,用户单元基于分配的代码编程编码和解码代码。 光学编码器和解码器包括折射光栅,阵列光波导,光开关和光反射器。 因此,可以实现中央代码分配方案,并且编码器和解码器的编程是可能的。
    • 47. 发明申请
    • Multi-stage rotary compressor
    • 多级旋转式压缩机
    • US20060159566A1
    • 2006-07-20
    • US11187882
    • 2005-07-25
    • Sung Cho
    • Sung Cho
    • F04B35/04
    • F04C23/008F01C21/0863F01C21/108F04C18/3564F04C23/001
    • A multi-stage rotary compressor to reduce a driving load and prevent a malfunction due to an abrupt pressure rising. In the compressor of the type including first and second compressing units mounted in a hermetic casing thereof to compress a gas, the gas being primarily compressed in the first compressing unit and secondarily compressed in the second compressing unit, the interior of the hermetic casing is divided into a plurality of spaces including first and second pressure chambers. The first pressure chamber surrounds the first compressing unit and is kept at a discharge pressure of the first compressing unit, and the second pressure chamber surrounds the second compressing unit and is kept at a discharge pressure of the second compressing unit.
    • 一种多级旋转式压缩机,用于降低驱动负载并防止由于突然的压力上升引起的故障。 在包括安装在其密封壳体中的第一和第二压缩单元以压缩气体的压缩机中,气体在第一压缩单元中被主要压缩并且在第二压缩单元中二次压缩,密封壳体的内部被分割 进入包括第一和第二压力室的多个空间。 第一压力室围绕第一压缩单元并保持在第一压缩单元的排出压力,第二压力室围绕第二压缩单元并保持在第二压缩单元的排出压力。
    • 49. 发明申请
    • Variable capacity rotary compressor
    • 可变容量旋转压缩机
    • US20060104845A1
    • 2006-05-18
    • US11125080
    • 2005-05-10
    • Chun SungSung Cho
    • Chun SungSung Cho
    • F01C20/18F16N13/20F03C4/00
    • F04C28/06F04C18/3564F04C29/0021
    • A variable capacity rotary compressor capable of equalizing an interior pressure (i.e., discharge pressure) of a hermetically sealed container with an interior pressure of a compression chamber where an idling operation is performed, resulting in a reduction of rotation resistance of a rotary shaft. The variable capacity rotary compressor includes housings disposed in the hermetically sealed container and having an interior space partitioned by intermediate plates into first and second compression chambers with different capacities, a rotary shaft rotatably disposed in the two compression chambers, eccentric units to selectively induce a compression operation in one of the two compression chambers depending on a rotational direction of the rotary shaft, and a pressure adjustment unit to apply the discharge pressure of the hermetically sealed container to one of the compression chambers where the idling operation is performed. The intermediate plates include first and second intermediate plates stacked one above another, and the pressure adjustment unit is interposed between the first and second intermediate plates.
    • 一种可变容量的旋转压缩机,其能够使密闭容器的内部压力(即排出压力)与进行空转操作的压缩室的内部压力相等,导致旋转轴的旋转阻力降低。 可变容量旋转压缩机包括设置在密封容器中并具有由中间板分隔成具有不同容量的第一和第二压缩室的内部空间的壳体,可旋转地设置在两个压缩室中的旋转轴,用于选择性地诱导压缩的偏心单元 根据旋转轴的旋转方向在两个压缩室中的一个中进行操作;以及压力调节单元,用于将密封容器的排出压力施加到执行空转操作的压缩室中的一个。 中间板包括彼此堆叠的第一和第二中间板,并且压力调节单元插入在第一和第二中间板之间。