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10 条记录 (耗时 0.025 秒)

    Built-in dual band antenna device and operating method thereof in a mobile terminal
    1.
    发明授权
    Built-in dual band antenna device and operating method thereof in a mobile terminal 有权

    公开(公告)号：US06452556B1

    公开(公告)日：2002-09-17

    申请号：US09956654

    申请日：2001-09-20

    申请人： Dong-In Ha ,  Wan-Jin Choi ,  Dong-Hwan Kim ,  Jun-Kyu Kang

    发明人： Dong-In Ha ,  Wan-Jin Choi ,  Dong-Hwan Kim ,  Jun-Kyu Kang

    IPC分类号： H01Q124

    CPC分类号： H01Q21/30 ,  H01Q1/243 ,  H01Q1/244 ,  H01Q1/38 ,  H01Q5/371 ,  H01Q9/30 ,  H01Q21/28

    摘要： Disclosed are a built-in dual band antenna device and an operating method thereof in a mobile terminal. In the built-in antenna dual band antenna device, a built-in dual band antenna has a first conductive antenna pattern formed on a board extended from the upper side of a main PCB and a second conductive antenna pattern on a board extended at a right angle from the upper side of the main PCB. A whip antenna is connected to the built-in dual band antenna, and contained in the mobile terminal when the whip antenna is retracted. A whip antenna driver extends or retracts the whip antenna. A duplexer separates an RF signal received from the built-in dual band antenna from an RF signal to be transmitted to the built-in dual band antenna. A controller processes the RF signals received at and transmitted from the duplexer and controls the whip antenna driver to extend the whip antenna in a speech state or upon a call attempt from a user.

    Mobile communication system having multi-band antenna
    2.
    发明授权
    Mobile communication system having multi-band antenna 有权
    具有多频带天线的移动通信系统

    公开(公告)号：US06662021B2

    公开(公告)日：2003-12-09

    申请号：US10272341

    申请日：2002-10-15

    申请人： Jun-Kyu Kang ,  Dong-In Ha ,  Wan-Jin Choi ,  Jung-Ho Park ,  Dong-Hwan Kim

    发明人： Jun-Kyu Kang ,  Dong-In Ha ,  Wan-Jin Choi ,  Jung-Ho Park ,  Dong-Hwan Kim

    IPC分类号： H04B138

    CPC分类号： H01Q1/362 ,  H01Q1/243 ,  H01Q1/244 ,  H01Q11/08 ,  H04B1/3805 ,  H04M2250/10

    摘要： A mobile communication system has a multi-band antenna capable of receiving and processing signals of GPS, CDMA, and PCS bands. In the system, a GPS processing section receives a signal of a first frequency band, so as to generate global positioning information. A communication signal processing section receives signals of a second frequency band lower than the first frequency band and a third frequency band higher than the first frequency band, demodulates the received signals , while modulating signals to be transmitted of the second frequency band and the third frequency band and outputting the modulated signals. The multi-band antenna has a dual-pitch helical antenna which includes first and second helical coil portions having different pitches, so that the first and second helical coil portions have different impedances for the signals of the first to third frequency bands. A frequency band separator section connected between the multi-band antenna and the GPS processing section and communication processing section supplies the signal of the first frequency band to the GPS processing section while supplying the signals of the second and third frequency bands to the communication processing section.

    摘要翻译： 移动通信系统具有能够接收和处理GPS，CDMA和PCS频带的信号的多频带天线。 在该系统中，GPS处理部接收第一频带的信号，生成全球定位信息。 通信信号处理部分接收比第一频带低的第二频带和高于第一频带的第三频带的信号，在对第二频带和第三频率的要传输的信号进行调制的同时解调接收的信号 并输出调制信号。 多频带天线具有包括具有不同间距的第一和第二螺旋线圈部分的双螺距螺旋天线，使得第一和第二螺旋线圈部分对于第一至第三频带的信号具有不同的阻抗。 连接在多频带天线和GPS处理部分之间的频带分离部分和通信处理部分将第二频带和第三频带的信号提供给通信处理部分，将第一频带的信号提供给GPS处理部分 。

    Built-in single band antenna device and operating method thereof in mobile terminal
    3.
    发明授权
    Built-in single band antenna device and operating method thereof in mobile terminal 失效
    内置单频天线装置及其在移动终端中的操作方法

    公开(公告)号：US06885346B2

    公开(公告)日：2005-04-26

    申请号：US09956691

    申请日：2001-09-20

    申请人： Dong-In Ha ,  Wan-Jin Choi ,  Dong-Hwan Kim ,  Jun-Kyu Kang

    发明人： Dong-In Ha ,  Wan-Jin Choi ,  Dong-Hwan Kim ,  Jun-Kyu Kang

    IPC分类号： H01Q1/24 ,  H01Q9/04 ,  H01Q9/30 ,  H01Q21/28

    CPC分类号： H01Q9/0421 ,  H01Q1/244 ,  H01Q9/30 ,  H01Q21/28

    摘要： There is provided a built-in single band antenna device and an operating method thereof in a mobile terminal. In the built-in antenna single band antenna device, a built-in single band antenna is formed into a conductive pattern on a board extended from the upper side of a main PCB. A whip antenna is connected to the built-in single band antenna, and contained in the mobile terminal when the whip antenna is retracted. A whip antenna driver extends or retracts the whip antenna. A duplexer separates an RF signal received from the built-in single band antenna from an RF signal to be transmitted to the built-in single band antenna. A controller processes the RF signals received at and transmitted from the duplexer and controls the whip antenna driver to extend the whip antenna in a speech state or upon a call attempt from a user.

    摘要翻译： 在移动终端中提供了内置的单频带天线装置及其操作方法。 在内置天线单频天线装置中，内置单频带天线形成为从主PCB的上侧延伸的板上的导电图案。 鞭状天线连接到内置的单频带天线，并且当鞭状天线缩回时包含在移动终端中。 鞭状天线驱动器延伸或缩回鞭状天线。 双工器将从内置单频带天线接收的RF信号与要发送到内置单频天线的RF信号分离。 控制器处理在双工器处接收和发送的RF信号，并且控制鞭状天线驱动器以语音状态或来自用户的呼叫尝试来延长鞭状天线。

    Method and apparatus for modulating symbols in an orthogonal frequency division multiplexing system and transmission apparatus using the same
    6.
    发明授权
    Method and apparatus for modulating symbols in an orthogonal frequency division multiplexing system and transmission apparatus using the same 有权
    用于在正交频分复用系统中调制符号的方法和装置及使用其的发送装置

    公开(公告)号：US08046398B2

    公开(公告)日：2011-10-25

    申请号：US11966249

    申请日：2007-12-28

    申请人： Jun-Kyu Kang ,  Young-Ik Cho ,  Hun-Kee Kim

    发明人： Jun-Kyu Kang ,  Young-Ik Cho ,  Hun-Kee Kim

    IPC分类号： G06F15/00

    CPC分类号： H04L27/2607 ,  H04L5/0007 ,  H04L27/263

    摘要： A method for modulating a symbol in a transmitter of an Orthogonal Frequency Division Multiplexing (OFDM) system. The symbol modulation method includes multiplying an input stream of an Inverse Fast Fourier Transform (IFFT) unit by a Twiddling factor for circular-shifting the input stream of the IFFT unit by a Cyclic Prefix (CP) length; performing IFFT on the input stream of the IFFT unit, which is multiplied by the Twiddling factor; buffering data corresponding to the CP length beginning from a front of an output stream of the IFFT unit; and generating an OFDM symbol by forward-copying the buffered data to a back of the output stream of the IFFT unit.

    摘要翻译： 一种用于调制正交频分复用（OFDM）系统的发射机中的符号的方法。 符号调制方法包括将快速傅里叶逆变换（IFFT）单位的输入流乘以Twiddling因子，以便将IFFT单元的输入流循环移位循环前缀（CP）长度; 对IFFT单元的输入流执行IFFT，乘以Twiddling因子; 从IFFT单元的输出流的前面开始缓冲对应于CP长度的数据; 以及通过将所缓冲的数据转发到所述IFFT单元的输出流的背面来产生OFDM符号。

    APPARATUS AND METHOD FOR BLOCK INTERLEAVING IN MOBILE COMMUNICATION SYSTEM
    8.
    发明申请
    APPARATUS AND METHOD FOR BLOCK INTERLEAVING IN MOBILE COMMUNICATION SYSTEM 审中-公开
    移动通信系统中的块交织的装置和方法

    公开(公告)号：US20090083514A1

    公开(公告)日：2009-03-26

    申请号：US12234788

    申请日：2008-09-22

    申请人： Bo-Rham LEE ,  Jong-Hun Rhee ,  Min-Goo Kim ,  In-Tae Kang ,  Jun-Kyu Kang

    发明人： Bo-Rham LEE ,  Jong-Hun Rhee ,  Min-Goo Kim ,  In-Tae Kang ,  Jun-Kyu Kang

    IPC分类号： G06F12/06

    CPC分类号： H03M13/2957 ,  H03M13/2707 ,  H03M13/276 ,  H03M13/6505 ,  H03M13/6525 ,  H04L1/0066 ,  H04L1/0071

    摘要： A method and apparatus for block interleaving that eliminates the step of intermediary buffering. The method includes: (a) calculating a memory address at which first output data, of which number is equal to the number of rows of a first encoder is stored, (b) storing the first output data at the calculated memory address of a circular buffer, (c) storing second output data at an address which is incremented by a specific constant value from the calculated memory address of the circular buffer, and (d) storing (n+1)th output data at an address which is incremented by n from the calculated memory address of the circular buffer.

    摘要翻译： 一种用于块交织的方法和装置，其消除了中间缓冲的步骤。 该方法包括：（a）计算存储器地址，在该存储器地址处，存储第一个输出数据的数量等于第一个编码器的行数，（b）将第一个输出数据存储在计算的循环存储器地址 缓冲器，（c）将存储第二输出数据存储在从计算的循环缓冲器的存储器地址中增加特定常数值的地址处，以及（d）将第（n + 1）个输出数据存储在增加了 n从循环缓冲区的计算内存地址。

    Method and apparatus for reducing digital to analog conversion (DAC) bits in frequency division multiple access (FDMA) system
    9.
    发明授权
    Method and apparatus for reducing digital to analog conversion (DAC) bits in frequency division multiple access (FDMA) system 失效
    用于减少频分多址（FDMA）系统中的数模转换（DAC）位的方法和装置

    公开(公告)号：US08493954B2

    公开(公告)日：2013-07-23

    申请号：US12337702

    申请日：2008-12-18

    申请人： Jun-Kyu Kang ,  In-Tae Kang ,  Jeong-Gil Lee ,  Bo-Rham Lee ,  Sang-Min Bae

    发明人： Jun-Kyu Kang ,  In-Tae Kang ,  Jeong-Gil Lee ,  Bo-Rham Lee ,  Sang-Min Bae

    IPC分类号： H04L27/08 ,  H04B7/208 ,  H04B1/44 ,  H04B7/204 ,  H04B1/04 ,  H04B1/06 ,  H04B7/00 ,  H01Q11/12

    CPC分类号： H04L27/2614 ,  H03M1/662 ,  H03M1/70 ,  H04L5/0044 ,  H04L27/2626

    摘要： A method and an apparatus for reducing Digital-to-Analog Conversion (DAC) bits at a transmitter of a Frequency Division Multiple Access (FDMA) system reduces a number of the bits for conversion so as to save power and reduce the cost of operation. The method can include generating a digital signal gain control value and an analog signal gain control value using subcarrier allocation information, a required Signal to Noise Ratio (SNR), and a Peak to Average Power Ratio (PAPR); controlling a gain of a signal input to a digital-to-analog converter using the digital signal gain control value; converting a digital signal of the controlled gain to an analog signal using the digital-to-analog converter; and restoring an original signal by controlling a gain of a signal output from the digital-to-analog converter using the analog signal gain control value.

    摘要翻译： 用于减少频分多址（FDMA）系统的发射机处的数模转换（DAC）比特的方法和装置减少了用于转换的比特数，以节省功率并降低操作成本。 该方法可以包括使用子载波分配信息，所需的信噪比（SNR）和峰均功率比（PAPR）来产生数字信号增益控制值和模拟信号增益控制值; 使用数字信号增益控制值控制输入到数模转换器的信号的增益; 使用数模转换器将受控增益的数字信号转换为模拟信号; 以及通过使用模拟信号增益控制值控制从数模转换器输出的信号的增益来恢复原始信号。