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1.发明申请DIRECT DIGITAL FREQUENCY SYNTHESIZER USING HYBRID DIGITAL TO ANALOG CONVERTER AND SYNTHESIZING METHOD THEREOF 有权使用混合数字到模拟转换器的直接数字频率合成器及其合成方法公开(公告)号：US20110043258A1
公开(公告)日：2011-02-24
申请号：US12626565
申请日：2009-11-25
申请人： Kwang-Hyun BAEK , Hong Chang YEOH , Jae-Hun JUNG , Yun-Hwan JUNG
发明人： Kwang-Hyun BAEK , Hong Chang YEOH , Jae-Hun JUNG , Yun-Hwan JUNG
IPC分类号： H03B21/00
摘要： The present invention relates to d a direct digital frequency synthesizer using a hybrid digital to analog converter, which is capable of synthesizing an analog signal with high quality without base decoding, thereby providing improved size and efficiency, and a synthesizing method thereof. The direct digital frequency synthesizer using a hybrid digital to analog converter, and a synthesizing method thereof are capable of simplifying a configuration of a PAM which matches output data of a phase accumulator to sine wave amplitude with an application of a hybrid DAC including a non-linear DAC and a linear DAC, without increase of complexity of a DAC, by causing the non-linear DAC to output a direct base point current using some bits of output data of a phase accumulator, causing the linear DAC to output a gradient current based on gradient information generated using other bits of the output data of the phase accumulator, and summing these currents for analog output. Accordingly, an effect of greatly reducing a size and power consumption can be achieved.
摘要翻译： 本发明涉及一种使用混合数模转换器的直接数字频率合成器，其能够在没有基本解码的情况下合成具有高质量的模拟信号，从而提供改进的尺寸和效率及其合成方法。 使用混合数模转换器的直接数字频率合成器及其合成方法能够简化将相位累加器的输出数据与正弦波振幅相匹配的PAM的结构， 线性DAC和线性DAC，而不增加DAC的复杂性，通过使非线性DAC使用相位累加器的输出数据的一些位输出直接基点电流，导致线性DAC输出基于梯度电流 在使用相位累加器的输出数据的其他位产生的梯度信息，并将这些电流相加以用于模拟输出。 因此，可以实现大幅度减小尺寸和功耗的效果。
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公开(公告)号：US09041074B2
公开(公告)日：2015-05-26
申请号：US13531120
申请日：2012-06-22
CPC分类号： H01Q1/2283 , H01Q21/0025
摘要： A multilayered antenna package including: a radio frequency integrated circuit (RFIC) interface layer that is configured to transmit a radio frequency (RF) signal; a first dielectric layer that is disposed on the RFIC interface layer; a coplanar waveguide layer that is disposed on the first dielectric layer and is configured to receive the RF signal transmitted by RFIC layer; a second dielectric layer disposed on the coplanar waveguide layer; and an antenna portion that is disposed on the second dielectric layer and is configured to irradiate a signal that is transmitted from the coplanar waveguide layer.
摘要翻译： 一种多层天线包，包括：射频集成电路（RFIC）接口层，被配置为发送射频（RF）信号; 设置在RFIC界面层上的第一介电层; 共面波导层，其设置在所述第一介电层上并被配置为接收由RFIC层发射的RF信号; 设置在共面波导层上的第二电介质层; 以及天线部，其设置在所述第二电介质层上并且被配置为照射从所述共面波导层发送的信号。
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3.发明授权Direct digital frequency synthesizer using variable sine wave-weighted digital to analog converter and synthesizing method thereof 有权直接数字频率合成器采用可变正弦波加权数模转换器及其合成方法公开(公告)号：US07928881B1
公开(公告)日：2011-04-19
申请号：US12647516
申请日：2009-12-27
IPC分类号： H03M1/66
CPC分类号： H03M1/682 , G06F1/022 , G06F2101/04 , H03M1/664
摘要： The present invention relates to a direct digital frequency synthesizer using a variable sine wave-weighted digital to analog converter with improved size and efficiency and a synthesizing method thereof. The direct digital frequency synthesizer and the synthesizing method thereof are capable of simplifying a configuration for matching output data of a phase accumulator to sine wave amplitude without increase in complexity of a DAC by applying a nonlinear DAC for directly generating a current corresponding to base points with sine weights and a variable sine wave-weighted DAC for generating fine currents to be combined with variable weights based on the base points. Accordingly, it is possible to provide a high quality output, reduce a size and power consumption, and increase a speed.
摘要翻译： 本发明涉及使用具有改进的尺寸和效率的可变正弦波加权数模转换器的直接数字频率合成器及其合成方法。 直接数字频率合成器及其合成方法能够简化用于将相位累加器的输出数据与正弦波振幅相匹配的配置，而不增加DAC的复杂度，通过应用非线性DAC来直接产生对应于具有 正弦权重和可变正弦波加权DAC，用于基于基点产生与可变权重组合的细电流。 因此，可以提供高质量的输出，减小尺寸和功耗，并且提高速度。
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4.发明申请Hardware-efficient phase-to-amplitude mapping design for direct digital frequency synthesizers 有权用于直接数字频率合成器的硬件有效的相位到幅度映射设计公开(公告)号：US20070174371A1
公开(公告)日：2007-07-26
申请号：US11339933
申请日：2006-01-25
申请人： Edward Merlo , Kwang-Hyun Baek , Myung-Jun Choe
发明人： Edward Merlo , Kwang-Hyun Baek , Myung-Jun Choe
IPC分类号： G06F15/00
CPC分类号： G06F1/022
摘要： A hardware-efficient mapping circuit uses a controller to down select signed shift values from the control signal (MSBs) for a particular phase angle. Shifter blocks shift the data signal (LSBs) by the respective shift values. The shifted data signals are added/subtracted from a base value decoded from the control signal to approximate a sinusoidal amplitude for the phase angle. Down selection by a controller allows the shifter blocks to be implemented with narrow band multiplexers, which conserves both chip space and power.
摘要翻译： 硬件高效映射电路使用控制器从特定相位角的控制信号（MSB）中向下选择有符号位移值。 移位块将数据信号（LSB）移位相应的移位值。 移位的数据信号从从控制信号解码的基值中加/减，以近似相位角的正弦振幅。 控制器的下降选择允许使用窄带多路复用器实现移位器模块，从而节省了芯片空间和功耗。
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公开(公告)号：US06329887B1
公开(公告)日：2001-12-11
申请号：US09357929
申请日：1999-07-21
申请人： Kwang Hyun Baek
发明人： Kwang Hyun Baek
IPC分类号： H03H910
CPC分类号： H03H9/1071
摘要： SAW filter package which can reduce an electromagnetic feed-through for improving an SAW filter performance including a base having a frame around a periphery, a ground part formed of a metal plating on an inside surface of the base for attaching an acoustic surface wave filter thereto, cut-away portions formed by cutting the metal plating of the ground part in two steps, and a metal piece electrically separated from the metal plating by the cut-away portions.
摘要翻译： SAW滤波器封装，其可以减少用于改善SAW滤波器性能的电磁馈通，包括具有围绕周边的框架的基座，在基座的内表面上由金属电镀形成的接地部分，用于将声表面波滤波器附接到其上 通过两步切割接地部分的金属电镀形成的切割部分和通过切除部分与金属电镀电隔离的金属片。
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公开(公告)号：US20130099006A1
公开(公告)日：2013-04-25
申请号：US13534542
申请日：2012-06-27
IPC分类号： G06K19/077
CPC分类号： H01Q1/2283 , H01L2223/6627 , H01L2223/6677 , H01L2223/6683 , H01L2224/16225 , H01L2224/48227
摘要： An antenna-printed circuit board (PCB) package is provided. The antenna-PCB package includes a PCB; an antenna portion formed on an upper surface of the PCB and inside the PCB; and a radio frequency integrated circuit (RFIC) chip bonded to a lower surface of the PCB.
摘要翻译： 提供了天线印刷电路板（PCB）封装。 天线PCB封装包括PCB; 形成在PCB的上表面和PCB内部的天线部分; 和射频集成电路（RFIC）芯片，其结合到PCB的下表面。
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7.发明授权Direct digital frequency synthesizer using hybrid digital to analog converter and synthesizing method thereof 有权使用混合数模转换器的直接数字频率合成器及其合成方法公开(公告)号：US08138957B2
公开(公告)日：2012-03-20
申请号：US12626565
申请日：2009-11-25
申请人： Kwang-Hyun Baek , Hong Chang Yeoh , Jae-Hun Jung , Yun-Hwan Jung
发明人： Kwang-Hyun Baek , Hong Chang Yeoh , Jae-Hun Jung , Yun-Hwan Jung
IPC分类号： H03M1/66
摘要： A direct digital frequency synthesizer and a synthesizing method thereof. The direct digital frequency synthesizer uses a hybrid digital to analog converter, which matches output data of a phase accumulator to a sine wave amplitude using a hybrid DAC, including a non-linear DAC and a linear DAC. The non-linear DAC outputs a direct base point current using some bits of output data of a phase accumulator, causing the linear DAC to output a gradient current based on gradient information generated using other bits of the output data of the phase accumulator. These currents are summed for the analog output.
摘要翻译： 一种直接数字频率合成器及其合成方法。 直接数字频率合成器使用混合数模转换器，其使用包括非线性DAC和线性DAC的混合DAC来将相位累加器的输出数据与正弦波幅度相匹配。 非线性DAC使用相位累加器的输出数据的一些位输出直接基点电流，使得线性DAC基于使用相位累加器的输出数据的其他位产生的梯度信息来输出梯度电流。 这些电流相加于模拟输出。
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公开(公告)号：US07956785B2
公开(公告)日：2011-06-07
申请号：US12647616
申请日：2009-12-28
IPC分类号： H03M1/66
摘要： The present invention relates to a digital to analog converter, to a return-to-zero digital to analog converter with improved wideband characteristics by enabling a return-to-zero output without separate clock and controller, and a converting method thereof. Since the return-to-zero digital to analog converter and the converting method thereof are capable of outputting an RZ output without directly providing a clock signal to an analog circuit by configuring a switch for generating a zero point signal and a differential pipeline for providing a differential signal to control the switch according to input digital data using a differential structure, the converter can provide wideband characteristics and high dynamic performance.
摘要翻译： 本发明涉及一种数模转换器，通过在没有单独的时钟和控制器的情况下实现归零输出，能够实现具有改进的宽带特性的归零数模转换器及其转换方法。 由于归零数模转换器及其转换方法能够通过配置用于产生零点信号的开关和差分管线来输出RZ输出而不向模拟电路提供时钟信号，以提供一个 差分信号根据输入数字数据使用差分结构控制开关，转换器可以提供宽带特性和高动态性能。
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公开(公告)号：US20110043399A1
公开(公告)日：2011-02-24
申请号：US12647616
申请日：2009-12-28
IPC分类号： H03M1/66
摘要： The present invention relates to a digital to analog converter, to a return-to-zero digital to analog converter with improved wideband characteristics by enabling a return-to-zero output without separate clock and controller, and a converting method thereof. Since the return-to-zero digital to analog converter and the converting method thereof are capable of outputting an RZ output without directly providing a clock signal to an analog circuit by configuring a switch for generating a zero point signal and a differential pipeline for providing a differential signal to control the switch according to input digital data using a differential structure, the converter can provide wideband characteristics and high dynamic performance.
摘要翻译： 本发明涉及一种数模转换器，通过在没有单独的时钟和控制器的情况下实现归零输出，能够实现具有改进的宽带特性的归零数模转换器及其转换方法。 由于归零数模转换器及其转换方法能够通过配置用于产生零点信号的开关和差分管线来输出RZ输出而不向模拟电路提供时钟信号，以提供一个 差分信号根据输入数字数据使用差分结构控制开关，转换器可以提供宽带特性和高动态性能。
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公开(公告)号：US20090231202A1
公开(公告)日：2009-09-17
申请号：US12259384
申请日：2008-10-28
IPC分类号： H01Q9/04
摘要： An antenna structure of an information communication terminal, the antenna structure including: a frame having a three dimensional shape; an antenna pattern formed in the frame; and a circuit lumped element mounted on a surface of the antenna pattern. In the antenna structure, an antenna is directly provided on the frame such that a sufficient antenna characteristic can be ensured in a small space, thereby realizing a slim and miniaturized information communication terminal.
摘要翻译： 一种信息通信终端的天线结构，所述天线结构包括：具有三维形状的框架; 形成在所述框架中的天线图案; 以及安装在天线图案的表面上的电路集总元件。 在天线结构中，在框架上直接设置天线，使得能够在小空间中确保足够的天线特性，从而实现纤薄且小型化的信息通信终端。
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