专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

KR101914890B1 래더형 필터, 탄성파 필터 모듈 및 듀플렉서 有权
公开(公告)号：KR101914890B1
公开(公告)日：2018-11-02
申请号：KR1020177014881
申请日：2015-11-27
申请人： 가부시키가이샤 무라타 세이사쿠쇼
发明人： 다까따,도시아끼
IPC分类号： H03H9/64 , H03H9/54 , H03H9/72 , H03H7/38 , H03H9/17 , H04B1/40
CPC分类号： H03H9/6406 , H01L41/047 , H01L41/107 , H03H7/38 , H03H9/6483 , H03H9/725
摘要： 정합회로의간략화혹은생략을도모할수 있는래더형필터를제공한다. 송신필터(4)인래더형필터. 래더형필터의입력단자(4a)에가장가까운공진자가병렬아암공진자이고, 입력단자(4a)에가장가까운당해병렬아암공진자가, 서로병렬로접속되어있는복수의분할공진자 P1a, P1b를갖는다. 적어도하나의분할공진자 P1a의공진주파수및 반공진주파수가, 래더형필터의통과대역밖에있고, 나머지분할공진자 P1b 및병렬아암공진자 P2, P3의반공진주파수가통과대역내에있다.

2. 发明公开

KR1020090036295A 디지털 케이블 수신기 无效
标题翻译：数字电缆接收器
公开(公告)号：KR1020090036295A
公开(公告)日：2009-04-14
申请号：KR1020070101387
申请日：2007-10-09
申请人： 엘지이노텍 주식회사
发明人： 최성주
IPC分类号： H04N7/10
CPC分类号： H04H40/27 , H03H9/6406 , H04H20/76
摘要： A digital cable receiver is provided to have a selection unit which selects the first or second saw filter by a controller, thereby setting an oscillation frequency of a transmission mode according to a usage region. An MOPLL integrated circuit(21) converts a high frequency signal into an intermediate frequency by mixing the high frequency signal with an oscillation frequency and outputs the intermediate frequency. The first or second saw filters filter only band frequencies preset with regard to the outputted intermediate frequency. A demodulator(24) demodulates the filtered intermediate frequency to output digital video/audio signals. A controller(25) is in the MOPLL integrated circuit. The controller generates an oscillation frequency by a selection signal of a used transmission mode.
摘要翻译：提供数字电缆接收器以具有通过控制器选择第一或第二锯齿形过滤器的选择单元，从而根据使用区域设置传输模式的振荡频率。 MOPLL集成电路（21）通过将高频信号与振荡频率混合而将高频信号转换为中频，并输出中频。第一或第二锯式滤波器仅滤出关于输出中频预设的频带频率。解调器（24）解调滤波后的中频以输出数字视频/音频信号。控制器（25）位于MOPLL集成电路中。控制器通过所使用的传输模式的选择信号产生振荡频率。

3. 发明公开

KR1020060102047A 비디오 링깅 특성이 개선된 ＴＶ 수신기 失效
标题翻译：具有改进的视频振铃特性的电视接收机
公开(公告)号：KR1020060102047A
公开(公告)日：2006-09-27
申请号：KR1020050023789
申请日：2005-03-22
申请人： 삼성전기주식회사
发明人： 문동택
IPC分类号： H04N5/21
CPC分类号： H04N5/21 , H03H9/6406
摘要： 본 발명은 비디오 신호의 링깅(ringing)특성이 개선된 TV 수신기를 제공하는데 그 목적이 있다.
이러한 목적을 달성하기 위한 본 발명의 TV 수신기는, 선택된 채널에 해당되는 RF신호를 IF신호(IF)로 변환하는 RF부(110); 상기 RF부(110)로부터의 IF신호(IF)를 사전에 설정된 대역으로 통과시키는 SAW 필터(120); 상기 SAW필터(120)를 통과한 IF신호를 베이스밴드의 영상신호(PS) 및 사운드신호(SS)로 변환하는 IF부(130); 상기 IF부(130)로부터의 영상 신호(PS)에 4.5MHz 트랩을 형성하는 사운드 트랩부(140); 상기 사운드 트랩부(140)에 병렬로 접속되어, 상기 사운드 트랩부(140)에 의한 트랩 주파수보다 낮은 주파수에 대한 트랩 기울기를 증가시키는 댐핑 회로부(145); 및 상기 사운드 트랩부(140)를 통과한 영상 신호중 크로마신호의 크기를 소정 크기로 감쇠시키는 크로마 감쇠부(160)를 포함하는 것을 특징으로 한다.
TV 수신기, 링깅특성, 필터
摘要翻译：本发明的一个目的是提供一种具有改进的视频信号振铃特性的电视接收机。

4. 发明公开

KR1020050055759A 표면 탄성파 식별 태그 상의 식별자를 결정하기 위한 전달함수 시스템 및 이를 동작시키는 방법 失效
标题翻译：用于确定表面声波识别标签的识别器的传送功能系统及其操作方法
公开(公告)号：KR1020050055759A
公开(公告)日：2005-06-13
申请号：KR1020057006190
申请日：2003-09-30
申请人： 알에프 소 인코포레이티드
发明人： 하트만클린톤에스. , 벨라미존씨.
IPC分类号： H04B5/02 , G08B13/14
CPC分类号： G08B13/2422 , G08B13/2417 , G08B13/2431 , G08B13/2485 , G08B25/007 , H03H9/6406
摘要： A transfer function system for determining an identifier on a surface acoustic wave (SAW) identification tag and a method of operating the same. In one embodiment the system provides for (1) generating a radio frequency (RF) interrogation signal that causes a transducer located on a piezoelectric substrate to produce an initial acoustic pulse that reflects off of a plurality of reflectors arranged according to time and phase position on the substrate to yield response acoustic pulses, the transducer generating an RF response signal from the response acoustic pulses; and (2) determining the identifier by decoding the RF response signal in view of predefined time, phase and amplitude parameters.
摘要翻译：一种用于确定表面声波（SAW）识别标签上的标识符的传递函数系统及其操作方法。在一个实施例中，系统提供（1）产生射频（RF）询问信号，其使位于压电衬底上的换能器产生初始声脉冲，其从根据时间和相位位置布置的多个反射器反射出来所述基板产生响应声脉冲，所述换能器从响应声脉冲产生RF响应信号; 和（2）根据预定义的时间，相位和幅度参数，通过解码RF响应信号来确定标识符。

5. 发明公开

KR1020000061676A 고화질 텔레비전의 중간주파수 처리장치 无效
标题翻译：用于处理高分辨率电视中间频率的装置
公开(公告)号：KR1020000061676A
公开(公告)日：2000-10-25
申请号：KR1019990010895
申请日：1999-03-30
申请人： 에스케이하이닉스 주식회사
发明人： 김정인 , 김남구
IPC分类号： H04N7/015
CPC分类号： H04N5/455 , H03H7/25 , H03H9/6406 , H04B1/10
摘要： PURPOSE: An apparatus for treating an intermediate frequency of a HDTV(high definition television) is provided to realize the apparatus using a balanced mode intermediate frequency, thereby shielding an AC(alternating current) noise introduced through a signal ground. CONSTITUTION: The apparatus for treating an intermediate frequency of a HDTV comprises a first balanced intermediate frequency amplifier(103) for amplifying a balanced mode intermediate frequency from an attenuator in a state that an AC noise is eliminated, a first saw filter(104) for filtering the intermediate frequency obtained from the first balanced intermediate frequency amplifier into a predetermined signal band, a second balanced intermediate frequency amplifier(105) for amplifying the balanced intermediate frequency signal output from the first saw filter into a desired level, a second saw filter(106) for filtering the balanced intermediate frequency signal output from the second balanced intermediate frequency amplifier into a predetermined signal band, and an intermediate frequency down-converter for down-converting the balanced intermediate frequency into an unbalanced intermediate frequency signal.
摘要翻译：目的：提供一种用于处理HDTV（高分辨率电视）的中频的装置，以实现使用平衡模式中频的装置，从而屏蔽通过信号地引入的交流（交流）噪声。用于处理HDTV的中频的装置包括用于在消除AC噪声的状态下从衰减器放大平衡模式中频的第一平衡中频放大器（103），用于将从第一平衡中频放大器获得的中频滤波成预定信号频带;第二平衡中频放大器，用于将从第一锯齿滤波器输出的平衡中频信号放大到期望水平;第二锯滤波器 106），用于将从第二平衡中频放大器输出的平衡中频信号滤波成预定信号频带;以及中频下变频器，用于将平衡中频下变频为不平衡中频信号。

6. 发明公开

KR1020140004908A 사다리형 ＳＡＷ 필터 有权
标题翻译：梯形式SAW滤波器
公开(公告)号：KR1020140004908A
公开(公告)日：2014-01-14
申请号：KR1020120072245
申请日：2012-07-03
申请人： (주)와이솔
发明人： 김영훈
IPC分类号： H03H9/64
CPC分类号： H03H9/64 , H03H9/145 , H03H9/1452 , H03H9/6406 , H03H9/6483
摘要： The present invention relates to a ladder type saw filter. A serial resonator is connected in series between an output terminal (Out) and an input terminal (In) on a piezoelectric wafer. A grounded parallel resonator is connected in parallel. Inter digital transducer (IDT) metal layers of the serial resonator and the parallel resonator have a thickness required for a layer thickness/period value of 0.092-0.13. [Reference numerals] (AA) Number of IDT; (BB) Film thickness (Hm); (CC) Cycle (貫)
摘要翻译：梯形锯式过滤器技术领域本发明涉及梯形锯式过滤器。串联谐振器串联连接在压电晶片上的输出端（Out）和输入端（In）之间。并联连接的并联谐振器。串联谐振器和并联谐振器的数字互感器（IDT）金属层具有厚度/周期值0.092-0.13所需的厚度。（附图标记）（AA）IDT的数量; （BB）膜厚（Hm）; （CC）循环（贯）

7. 发明公开

KR1020110017634A 복합형 방송 튜너 有权
标题翻译：复合广播调谐器
公开(公告)号：KR1020110017634A
公开(公告)日：2011-02-22
申请号：KR1020090075202
申请日：2009-08-14
申请人： 삼성전기주식회사
发明人： 장인종
IPC分类号： H04N5/50 , H04B1/06 , H03J5/00
CPC分类号： H03H9/6406 , H04N5/46 , H04N5/50
摘要： PURPOSE: A complex broadcasting tuner is provided to pass both digital IF(Intermediate Frequency) frequency and analog sound IF frequency into one SAW(Surface Acoustic Wave) filter. CONSTITUTION: A complex broadcasting tuner comprises a tuner(100), a first saw filter(220), and a second saw filter(240). The tuner changes the radio frequency signal including the target broadcasting channel according to the broadcast channel selection(ST) into the intermediate frequency signal. The first saw filter passes the analog video IF signal among the IF signals. The second saw filter passes through the analog sound IF signal and digital IF signal among the IF signals.
摘要翻译：目的：提供复杂的广播调谐器，将数字IF（中频）频率和模拟声音IF频率同时传送到一个SAW（表面声波）滤波器中。构成：复合广播调谐器包括调谐器（100），第一锯齿过滤器（220）和第二锯齿过滤器（240）。调谐器根据广播频道选择（ST）将包括目标广播频道的射频信号改变为中频信号。第一个锯切滤波器通过IF信号中的模拟视频IF信号。第二锯滤波器通过IF信号中的模拟声音IF信号和数字IF信号。

8. 发明公开

KR1020100053522A 저손실 튜닝 가능 무선 주파수 필터 有权
标题翻译：低损失无线电频率滤波器
公开(公告)号：KR1020100053522A
公开(公告)日：2010-05-20
申请号：KR1020107001819
申请日：2008-06-27
申请人： 레저넌트 인크.
发明人： 쯔즈끼,겐이찌 , 윌렘센,발램에이.
IPC分类号： H01P1/20
CPC分类号： H03H9/465 , G06F17/5036 , G06F17/5045 , G06F17/5063 , G06F17/5072 , G06F17/5077 , G06F2217/02 , G06F2217/08 , G06F2217/16 , G06F2217/82 , H01P1/20 , H01P1/20336 , H03H3/00 , H03H7/0153 , H03H7/0161 , H03H7/06 , H03H7/075 , H03H7/12 , H03H7/1758 , H03H7/1791 , H03H7/54 , H03H9/171 , H03H9/46 , H03H9/462 , H03H9/542 , H03H9/64 , H03H9/6406 , H03H2007/013 , H03H2009/02204 , H03H2210/012 , H03H2210/025 , H03H2210/033 , Y10T29/49018
摘要： A tunable RF filter comprises a signal transmission path having an input and output, a plurality of resonant elements disposed along the signal transmission path between the input and output, and a set of non-resonant elements coupling the resonant elements together to form a stop band having a plurality of transmission zeroes corresponding to respective frequencies of the resonant elements, and at least one sub-band between the transmission zeroes. The set of non-resonant elements comprises a first plurality of non-resonant elements respectively coupled in parallel with the resonant elements, and a second plurality of non-resonant elements respectively coupled in series with the resonant elements. The first plurality of non-resonant elements comprises at least one variable non-resonant element for selectively introducing at least one reflection zero within the stop band to create a pass band in one of the one sub-band(s) without varying any of the second plurality of non-resonant elements.
摘要翻译：可调谐RF滤波器包括具有输入和输出的信号传输路径，沿着输入和输出之间的信号传输路径设置的多个谐振元件，以及将谐振元件耦合在一起以形成阻带的一组非共振元件具有对应于谐振元件的各个频率的多个传输零点，以及传输零点之间的至少一个子带。该非谐振元件组包括分别与谐振元件并联耦合的第一多个非谐振元件和分别与谐振元件串联耦合的第二多个非谐振元件。第一多个非谐振元件包括至少一个可变非谐振元件，用于选择性地在阻带内引入至少一个反射零点，以在一个子带之一中产生通带，而不改变任何一个第二多个非谐振元件。

9. 发明公开

KR1020080062829A 멀티플렉서 失效
标题翻译：复用器
公开(公告)号：KR1020080062829A
公开(公告)日：2008-07-03
申请号：KR1020060138967
申请日：2006-12-29
申请人： 엘지이노텍 주식회사
发明人： 조정훈
IPC分类号： H04B1/16
CPC分类号： H04B1/16 , H03H9/6406 , H03H9/725
摘要： A multiplexer is provided to realize optimized impedance matching of devices and improve bandwidth separation performance, by using minimum quantity of components with minimized size. A quintplexer(100) comprises a first PSN(Phase Shift Network)(110), a second PSN(120), a PCS signal separator(130), a third PSN(140), a DCN signal separator(150) and a GPS filter(160). A frequency signal of a triple band bandwidth(PCS signal, a DCN signal, or a GPS signal) received from an antenna(200) is transmitted to the first PSN and the GPS filter, wherein, the first PSN transfers a phase of the signal into about 60 degrees. So that, following circuits can be operated as an open circuit about the frequency of 1574.42 to 1576.42Mhz. Thus, the GPS signal is blocked and the DCN signal is passed.
摘要翻译：提供多路复用器以通过使用最小尺寸的最小数量的组件实现设备的优化阻抗匹配并提高带宽分离性能。复合器（100）包括第一PSN（相移网络）（110），第二PSN（120），PCS信号分离器（130），第三PSN（140），DCN信号分离器（150）和GPS 过滤器（160）。从天线（200）接收的三频带宽（PCS信号，DCN信号或GPS信号）的频率信号被发送到第一PSN和GPS滤波器，其中，第一PSN传送信号的相位进入约60度。因此，以下电路可以作为开路工作，频率为1574.42至1576.42Mhz。因此，GPS信号被阻塞，DCN信号通过。

10. 发明公开

KR1020040081835A 표면탄성파 필터 无效
标题翻译：表面声波滤波器，获得良好的频率特性
公开(公告)号：KR1020040081835A
公开(公告)日：2004-09-23
申请号：KR1020030016383
申请日：2003-03-17
申请人： 엘지이노텍 주식회사
发明人： 최용림
IPC分类号： H03H9/64
CPC分类号： H03H9/64 , H03H7/38 , H03H9/1092 , H03H9/25 , H03H9/6406
摘要： PURPOSE: A surface acoustic wave filter is provided to obtain an improved frequency characteristic by extending length of signals within the limit of the miniaturized size of the surface acoustic wave filter. CONSTITUTION: A surface acoustic wave filter includes an input IDT, an output IDT, and a plurality of resonators. The input IDT(303) is formed on a piezoelectric substrate in order to convert an inputted electric signal to an acoustic wave signal. The output IDT(304) which is formed on a predetermined position corresponding to the input IDT of the piezoelectric substrate converts the acoustic wave signal to the electric signal. The resonators(305,306) which are formed on both sides of the input IDT and the output IDT of the piezoelectric substrate transmit a surface acoustic wave of the input IDT to the output IDT.
摘要翻译：目的：提供表面声波滤波器，通过在声表面波滤波器的小型化尺寸的极限内延长信号长度，获得改进的频率特性。构成：表面声波滤波器包括输入IDT，输出IDT和多个谐振器。输入IDT（303）形成在压电基板上，以将输入的电信号转换成声波信号。形成在与压电基板的输入IDT相对应的预定位置的输出IDT（304）将声波信号转换为电信号。在输入IDT的两侧形成的谐振器（305,306）和压电基板的输出IDT将输入IDT的声表面波传输到输出IDT。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式