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    • 32. 发明申请
    • Frequency recovery apparatus and method for use in digital broadcast receiver
    • 用于数字广播接收机的频率恢复装置和方法
    • US20060062316A1
    • 2006-03-23
    • US11226288
    • 2005-09-15
    • Tae Ho Kim
    • Tae Ho Kim
    • H04K1/10H04L27/06
    • H04L27/2688H04H40/27H04L5/0007H04L5/0048H04L27/261H04L27/2659
    • A frequency recovery apparatus and method for use in a digital broadcast receiver having very strong resistance to a sampling offset is disclosed. A frequency recovery apparatus for use in a digital broadcast receiver for receiving a digital broadcast signal transmitted according to an orthogonal frequency division multiplexing (OFDM) scheme, comprising: a division window for dividing first data units, which are transformed from OFDM symbols into frequency-domain values and the second data units which the first data units are delayed by some intervals respectively, and passing only some data units from among some intervals of the first data units and the second data units; a pilot pattern generator for generating a pilot pattern associated with data units contained in each of the divided windows; and a cross-correlator for performing correlation between the part of the first data units and the part of the second data units from the division window at a individual position of the pilot pattern generated from the pilot pattern generator, and generating the correlation resultant values. Therefore, the apparatus can more correctly estimate a frequency offset even in the 8k mode, regardless of a mode.
    • 公开了一种用于数字广播接收机的频率恢复装置和方法,该数字广播接收机对采样偏移具有非常强的抵抗力。 一种在数字广播接收机中使用的频率恢复装置,用于接收根据正交频分复用(OFDM)方案发送的数字广播信号,包括:划分窗口,用于分割从OFDM符号变换成频分复用的第一数据单元, 域值和第一数据单元分别延迟一些间隔的第二数据单元,并且仅从第一数据单元和第二数据单元的一些间隔中仅传递一些数据单元; 导频图案生成器,用于生成与包含在每个分割窗口中的数据单元相关联的导频模式; 以及互相关器,用于在从导频模式发生器产生的导频模式的单独位置处,从分割窗口执行部分第一数据单元的一部分和第二数据单元的部分之间的相关,并产生相关结果值。 因此,即使在8k模式下,该装置也可以更准确地估计频率偏移,而不管模式如何。
    • 33. 发明授权
    • Electrical charge relay enhancer and solar cell system including the enhancer
    • 电荷继电器增强器和包括增强器的太阳能电池系统
    • US09124116B2
    • 2015-09-01
    • US13519917
    • 2010-12-28
    • Hyun-Ku AnHak-Soo KimSoo Wohn LeeTae Ho Kim
    • Hyun-Ku AnHak-Soo KimSoo Wohn LeeTae Ho Kim
    • H02J7/00H02J7/35
    • H02J7/0052H02J7/35H02J2007/0059Y02E10/566Y02E70/40
    • A charge relay enhancer used in relaying a charge produced in a solar cell to a charger, and a solar cell system including the charge relay enhancer. The charge relay enhancer includes: a charge induction and pumping device inducing a charge by using a power voltage from among two power voltages of different polarities selected in response to a control signal, and pumping the induced charge; and a charge pathway selecting device relaying the charge input to an input terminal via two input/output terminals, to the charge induction and pumping device, receiving the charge pumped by the charge induction and pumping device via the two input/output terminals, and outputting the charge to an output terminal. Accordingly, as charges produced in a solar cell may be relayed to a charging device as much as possible, efficiency of relaying charges produced in the solar cell to the charging device may be maximized.
    • 用于将在太阳能电池中产生的电荷中继到充电器的电荷继电器增强器,以及包括电荷继电器增强器的太阳能电池系统。 电荷继电器增强器包括:电荷感应和泵送装置,通过使用响应于控制信号选择的不同极性的两个电源电压中的电源电压而引起电荷,并泵送感应电荷; 以及充电路径选择装置,经由两个输入/输出端子将充电输入中继到输入端,连接到充电感应和泵送装置,经由两个输入/输出端子接收由电荷感应和泵送装置泵送的电荷,并输出 输出端子的充电。 因此,由于太阳能电池中产生的电荷可以尽可能地中继到充电装置,所以可以使在太阳能电池中向充电装置产生的中继电荷的效率最大化。
    • 36. 发明授权
    • Parking place confirmation system and method thereof
    • 停车场确认系统及其方法
    • US08334792B2
    • 2012-12-18
    • US12514713
    • 2007-04-11
    • Tae Ho Kim
    • Tae Ho Kim
    • B60Q1/48G08G1/14
    • G08G1/14
    • Disclosed is a system and method for checking a parking position that enables a parking lot user to conveniently check a position of a vehicle that he/she has parked using his/her mobile communication terminal. When a customer with a mobile communication terminal having a built-in Radio Frequency IDentification (RFID) reader chip moves his/her vehicle close to an RFID tag for checking a parking position installed at a parking stall, the position information regarding the parking stall stored in the RFID tag is transmitted to a parking management server, and the parking management server transmits it again to the mobile communication terminal in text or graphic format.
    • 公开了一种用于检查停车位置的系统和方法,其使得停车场用户能够使用他/她的移动通信终端方便地检查他/她已经停放的车辆的位置。 当具有内置射频识别(RFID)读取器芯片的移动通信终端的客户将他/她的车辆移动靠近RFID标签以检查安装在停车位的停车位置时,存储关于停车档位的位置信息 将RFID标签中的RFID标签发送到停车管理服务器,并且停车管理服务器以文本或图形格式再次向移动通信终端发送。
    • 39. 发明授权
    • Multiplexer circuit
    • 多路复用器电路
    • US07816972B2
    • 2010-10-19
    • US11943074
    • 2007-11-20
    • Kyoung Hoon YangTae Ho Kim
    • Kyoung Hoon YangTae Ho Kim
    • H03K17/62
    • H03K19/1738H04J3/047
    • Disclosed herein is a multiplexer circuit. The multiplexer circuit includes a first differential output unit, a second differential output unit, and a selection unit. The first differential output unit receives NRZ input signals (D1 and D1) and a clock signal (CLK), and generates differential RZ-mode outputs (R1 and R1). The second differential output unit receives NRZ input signals (D2 and D2) and an inverted clock signal ( CLK), and generates differential RZ-mode outputs (R2 and R2). The selection unit receives the RZ-mode output signals (R1, R1, R2, and R2) generated at the first differential output unit and the second differential output unit, and generates NRZ mode outputs in each half cycle of the clock signal (CLK).
    • 这里公开了一种多路复用器电路。 多路复用器电路包括第一差分输出单元,第二差分输出单元和选择单元。 第一差分输出单元接收NRZ输入信号(D1和D1)和时钟信号(CLK),并产生差分RZ模式输出(R1和R1)。 第二差分输出单元接收NRZ输入信号(D2和D2)和反相时钟信号(CLK),并产生差分RZ模式输出(R2和R2)。 选择单元接收在第一差分输出单元和第二差分输出单元处产生的RZ模式输出信号(R1,R1,R2和R2),并且在时钟信号(CLK)的每个半周期中产生NRZ模式输出, 。