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41. 发明公开

KR1020030054439A 튜너에서의 ＶＨＦ간섭 제거 회로 失效
标题翻译：在调谐器中移除甚高频干扰的电路
公开(公告)号：KR1020030054439A
公开(公告)日：2003-07-02
申请号：KR1020010084600
申请日：2001-12-26
申请人： 삼성전기주식회사
发明人： 장용주
IPC分类号： H04N5/50
CPC分类号： H04N5/50 , H03J5/244
摘要： PURPOSE: A circuit for removing VHF interference in a tuner is provided to remove a VHF signal and apply only UHF signal to a low-noise amplifier when UHF having a weak electric field is received, to eliminate interference generated due to VHF having a strong field. CONSTITUTION: A circuit for removing VHF interference in a tuner connected between an antenna for receiving a UHF signal and a VHF signal and a low-noise amplifier includes the first and second ON/OFF switches and a high pass filter(21). The first ON/OFF switch is placed between the antenna and the low-noise amplifier and turns off when the UHF signal is selected. The second ON/OFF switch is connected between the antenna and the low-noise amplifier in parallel with the first ON/OFF switch and turns on when the low-noise amplifier is selected to apply the UHF signal to the low-noise amplifier. The high pass filter passes UHF band.
摘要翻译：目的：提供一种用于去除调谐器中VHF干扰的电路，用于去除VHF信号，并且当接收到具有弱电场的UHF时，仅将UHF信号施加到低噪声放大器，以消除由于具有强场的VHF而产生的干扰。构成：用于消除连接在用于接收UHF信号的天线和VHF信号的天线之间的调谐器中的VHF干扰的电路和低噪声放大器包括第一和第二ON / OFF开关和高通滤波器（21）。第一个ON / OFF开关放置在天线和低噪声放大器之间，当选择UHF信号时，它将关闭。第二个ON / OFF开关与第一个ON / OFF开关并联连接在天线和低噪声放大器之间，当选择低噪声放大器将UHF信号施加到低噪声放大器时，它将导通。高通滤波器通过UHF频带。

42. 发明授权

KR100389504B1 대역 통과 필터 失效
标题翻译： 대역통과필터
公开(公告)号：KR100389504B1
公开(公告)日：2003-06-25
申请号：KR1020007000014
申请日：1998-07-03
申请人： 인피니언 테크놀로지스 아게
发明人： 무시올,로타르 , 쿤,랄프
IPC分类号： H03J5/24
CPC分类号： H03H7/1783 , H03H7/0115 , H03H7/075 , H03H7/1791 , H03H2240/00 , H03J5/244
摘要： The bandpass filter has a comparatively large pass bandwidth, with, at the same time, comparatively steep edges up to the stop band and low attenuation in the passband. The bandpass filter contains three parallel LC elements, one of which is connected between the bandpass filter input and the bandpass filter output. The other two parallel LC elements each have one of their connections coupled to a fixed reference-ground potential.
摘要翻译：带通滤波器具有相对较大的通带宽度，同时，相对陡峭的边缘直至阻带和通带中的低衰减。带通滤波器包含三个并联LC元件，其中一个连接在带通滤波器输入和带通滤波器输出之间。其他两个并联LC元件的每一个具有连接到固定参考地电位的连接中的一个。

43. 发明公开

KR1020010062493A 튜너의 복동조회로 失效
标题翻译：调谐器双调谐电路
公开(公告)号：KR1020010062493A
公开(公告)日：2001-07-07
申请号：KR1020000077115
申请日：2000-12-15
申请人： 알프스 덴키 가부시키가이샤
发明人： 야마모토마사키 , 야마모토아키라
IPC分类号： H04N5/50
CPC分类号： H03J5/244
摘要： PURPOSE: A dual-tuning circuit of a tuner is provided to prevent selective characteristics from deteriorating by a parasitic tuning circuit consisting of static capacitance caused in nonconductive state of a witch diode and inter-terminal capacitance of resistors. CONSTITUTION: A high-band reception feed resistor is connected directly to a switch diode(22) in a primary tuning circuit(11) and to a switch diode(40) via a coil(34) in a secondary tuning circuit(12). Since the tuning frequency by a parasitic tuning circuit in the primary tuning circuit is lower than the tuning frequency by a parasitic tuning circuit in the secondary tuning circuit, the peak in frequency characteristics caused by the parasitic tuning circuit can be reduced. Therefore, the disturbance to an IF(Intermediate Frequency) signal can be decreased.
摘要翻译：目的：提供调谐器的双调谐电路，以防止选择性特性受到由二极管的非导通状态引起的静态电容和电阻器的端子间电容组成的寄生调谐电路的恶化。构成：高频带接收馈电电阻器通过次谐波调谐电路（12）中的线圈（34）直接连接到初级调谐电路（11）中的开关二极管（22）和开关二极管（40）。由于主调谐电路中的寄生调谐电路的调谐频率通过二次调谐电路中的寄生调谐电路低于调谐频率，所以可以减少由寄生调谐电路引起的频率特性峰值。因此，可以降低对IF（中频）信号的干扰。

44. 发明公开

KR1020010051928A 튜너의 복동조회로 失效
标题翻译：调谐器双调谐电路
公开(公告)号：KR1020010051928A
公开(公告)日：2001-06-25
申请号：KR1020000070300
申请日：2000-11-24
申请人： 알프스 덴키 가부시키가이샤
发明人： 야마모토마사키 , 야마모토아키라
IPC分类号： H04N5/50
CPC分类号： H03J3/26 , H03J5/244
摘要： PURPOSE: To prevent deterioration of a selection characteristic due to a new undesired tuning circuit formed by capacitance generated in the nonconductive mode of a switch diode in a double-tuned circuit of a tuner switchable, so as to be tune to a plurality of frequency bands according to the conductivity/ nonconductivity of the switch diode. CONSTITUTION: A secondary tuning circuit 12 is provided with a trap circuit consisting of by a tuning coil 32, a varactor diode 37 and capacitors 40, by providing the capacitor 40 at the connection between a direct current blocking capacitor 33 and a tuning coil 34 and the connection between the diode 37 and a direct current blocking capacitor 38.
摘要翻译：目的：为了防止在可调谐的可调谐的双调谐电路中由在开关二极管的非导通模式中产生的电容形成的新的不期望的调谐电路导致的选择特性的劣化，以便调谐到多个频带根据开关二极管的电导率/非导通性。构成：二次调谐电路12设置有由调谐线圈32，变容二极管37和电容器40组成的陷波电路，通过将电容器40设置在直流隔离电容器33和调谐线圈34之间的连接处，以及二极管37和直流阻断电容器38之间的连接。

45. 发明公开

KR1020010046208A 주파수 매핑 근사 함수를 이용한 광대역 주파수 자동 채널선택 장치 및 그 방법 失效
标题翻译：使用频率映射逼近函数选择宽带频率自动通道的装置和方法
公开(公告)号：KR1020010046208A
公开(公告)日：2001-06-05
申请号：KR1019990049890
申请日：1999-11-11
申请人： 한국전자통신연구원
发明人： 정영준 , 김재영 , 강성춘 , 최재익 , 박재홍
IPC分类号： H04N7/015
CPC分类号： H03J1/005 , H03D7/163 , H03J1/0075 , H03J3/32 , H03J5/244 , H04B1/28
摘要： PURPOSE: An apparatus and method for selecting a broadband frequency automatically channel using a frequency mapping approximation function is provided to select a broadband frequency channel automatically by using a frequency mapping function. CONSTITUTION: A frequency band separating unit(510) comprises an input band passing wave filter(501) and a positive tracking wave filter and automatically gaining controller(502). The frequency band separating unit(510) passes broadcasting channels(CH2-CH69) of 50-810 MHz frequency band and the channels including cable TV channels and removes non-television signals inputted as a video signal band(more 920MHz). A frequency upward adjusting unit(520) comprises a frequency up-converter(503), a low band passing wave filter(504), an IF amplifier(505) and a band passing wave filter(506). The frequency up-converter(503) performs the first frequency upward conversion of an input wireless frequency signal into an intermediate frequency of 944 MHz. A frequency downward adjusting unit(530) comprises a frequency down-converter(507), a low band passing wave filter(508) and a final terminal IF amplifier(509). The frequency down-converter(507) performs the frequency downward conversion of an input IF signal(944 MHz) into the final IF(44 MHz). The low band passing wave filter(508) and the final terminal IF amplifier(509) suppress spurious components generated by a mixer and amplify a signal. A tuner control unit(550) comprises a tuning micro controller(513), an EEPROM(514), a digital/analog converter(D/A)(515), a calculation amplifier(516) and a driver amplifier(517). The tuning micro controller(513) forms an interface with a frequency channel selection information introduced by the external IIC-BUS signal.
摘要翻译：目的：提供一种使用频率映射近似函数选择宽带频率自动通道的装置和方法，以通过使用频率映射函数自动选择宽带频道。构成：频带分离单元（510）包括输入带通滤波器（501）和正跟踪波滤波器，并且自动获得控制器（502）。频带分离单元（510）通过50-810MHz频带的广播频道（CH2-CH69）和包括有线电视频道的频道，并去除作为视频信号频带（更多的920MHz）输入的非电视信号。频率上调单元（520）包括上变频器（503），低频带通滤波器（504），IF放大器（505）和带通滤波器（506）。上变频器（503）执行输入无线频率信号的第一频率向上转换为944MHz的中频。频率向下调整单元（530）包括频率下变频器（507），低频带通滤波器（508）和最终终端IF放大器（509）。降频转换器（507）将输入IF信号（944MHz）的频率向下转换成最终IF（44MHz）。低通滤波器（508）和最终终端IF放大器（509）抑制由混频器产生的杂散分量并放大信号。调谐器控制单元（550）包括调谐微控制器（513），EEPROM（514），数/模转换器（D / A）（515），计算放大器（516）和驱动放大器（517）。调谐微控制器（513）形成具有由外部IIC-BUS信号引入的频道选择信息的接口。

46. 发明公开

KR1020010040289A 자동 이득-제어 ＶＨＦ／ＵＨＦ 안테나 동조 장치 有权
标题翻译：自动增益控制VHF / UHF天线调谐装置
公开(公告)号：KR1020010040289A
公开(公告)日：2001-05-15
申请号：KR1020007006065
申请日：1998-12-04
申请人： 톰슨 라이센싱
发明人： 티나퐁,프라판,폴 , 슈이,이
IPC分类号： H03J5/24
CPC分类号： H01Q1/38 , H01Q5/25 , H01Q5/321 , H01Q5/357 , H01Q9/14 , H01Q21/30 , H03G3/3052 , H03J5/242 , H03J5/244
摘要： VHF/UHF 안테나를위한안테나동조장치는, AGC 장치에의해이득이제어되는증폭기를포함하는자동이득제어(AGC) 장치, 및동조장치의안테나입력단과 AGC-제어증폭기사이에연결된다수의임피던스매칭네트워크를포함한다. 원격제어기는상기동조장치가 VHF/UHF 신호를제공하는텔레비전장치의두 채널, 및각각의선택된채널에적합한적절한매칭네트워크를동시에선택하도록제공된다. 다수의매칭네트워크는각각다수의수신가능한방송채널을구비하는각각의 RF 신호그룹을 AGC 장치에독점적으로제공한다. 증폭기의이득은 RF 신호그룹의레벨에따라제어된다.

47. 发明公开

KR1020010037301A 지상파 디지털 텔레비전 튜너의 3밴드 트랙킹 필터 无效
标题翻译： 3波形数字电视调谐器带式跟踪滤波器
公开(公告)号：KR1020010037301A
公开(公告)日：2001-05-07
申请号：KR1019990044738
申请日：1999-10-15
申请人： 엘지이노텍 주식회사
发明人： 김철규
IPC分类号： H04N5/50
CPC分类号： H04N5/50 , H03J5/244
摘要： PURPOSE: A 3 band tracking filter for ground wave digital television tuner is provided to improve a distortion characteristic of a varactor by enlarging a combining degree of a circuit using a pattern condenser, supplying a different tuning voltage from the outside, and tuning a desired frequency in the tracking filter. CONSTITUTION: The first input terminal switch(11) is switched by each band of a channel tuned by a band switching signal. The first output terminal switch(12) is switched by each band of the channel tuned by the band switching signal. The first filter unit(110) is connected with an output terminal of the first input terminal switch(11) for passing a desired high frequency signal according to the first tuning voltage inputted from the outside. The second filter unit(120) is connected with an input terminal of the first output terminal switch(12) for passing a desired high frequency signal according the second tuning voltage inputted from the outside. A pattern condenser(Cp) performs a capacity combination of the first filter unit(110) and the second filter unit(120).
摘要翻译：目的：提供一种用于地面波数字电视调谐器的3频带跟踪滤波器，通过扩大使用图案电容器的电路的组合度来提高变容二极管的失真特性，从外部提供不同的调谐电压，并调谐所需的频率在跟踪过滤器中。构成：第一输入端子开关（11）由通过频带切换信号调谐的通道的每个频带切换。第一输出端子开关（12）由通过频带切换信号调谐的信道的每个频带切换。第一滤波器单元（110）与第一输入端子开关（11）的输出端连接，用于根据从外部输入的第一调谐电压来传递期望的高频信号。第二滤波器单元（120）与第一输出端子开关（12）的输入端连接，用于根据从外部输入的第二调谐电压来传递期望的高频信号。图案冷凝器（Cp）执行第一过滤器单元（110）和第二过滤器单元（120）的容量组合。

48. 发明公开

KR1020010022753A 믹서 발진기 스테이지 失效
标题翻译：混频器振荡器
公开(公告)号：KR1020010022753A
公开(公告)日：2001-03-26
申请号：KR1020007001352
申请日：1999-06-03
申请人： 코닌클리케 필립스 엔.브이.
发明人： 브레켈만스요하네스하.아.
IPC分类号： H03J5/24
CPC分类号： H03J5/244
摘要： 지금까지믹서발진기스테이지의스위치된 2 대역개념이 3 대역개념과는독립적으로개발되어왔다. 본발명은믹서발진기스테이지의구조를변경하지않고스위치된 2 대역개념및 3 대역개념을이용할수 있는믹서발진기스테이지를제공한다. 이것은믹서의수보다많은수의발진기를이용하는한편, 신호를모으는대역부에따라서상이한발진기들사이에서전환하도록상기믹서를스위칭수단을통해발진기에결합함으로서달성된다.

49. 发明公开

KR1020000071736A 텔레비젼신호 수신튜너 失效
标题翻译：电视信号接收调谐器
公开(公告)号：KR1020000071736A
公开(公告)日：2000-11-25
申请号：KR1020000020622
申请日：2000-04-19
申请人： 알프스 덴키 가부시키가이샤
发明人： 야마모토마사키
IPC分类号： H04N5/50
CPC分类号： H04N5/44 , H03J5/244 , H04N5/21 , H04N21/42607
摘要： 본발명은수신하는신호의 2분의 l의주파수신호의 2배고조파의레벨을낮게하여화상품질을높히는것이다. 이를위하여본 발명에서는 FM 방송대역에인접하는채널및 FM 방송대역주파수의 2배의주파수채널을수신하는경우에 FM 방송대역의주파수를감쇠시키기위한트랩회로(5')를구비하고있다. 또트랩회로는버랙터다이오드(18)를가지며, 버랙터다이오드(18)에동조전압(Vt)을인가함으로써감쇠시키는주파수가조정되고수신하는텔레비젼신호의 2분의 1의주파수신호가트랩회로에서감쇠된다.

50. 发明公开

KR1020000057908A 불필요한 복사를 줄인 텔레비젼신호 수신용 튜너 失效
标题翻译：用于接收电视信号的调谐器减少不必要的副本
公开(公告)号：KR1020000057908A
公开(公告)日：2000-09-25
申请号：KR1020000005364
申请日：2000-02-03
申请人： 알프스 덴키 가부시키가이샤
发明人： 야마모토마사키 , 오사다시게루 , 사토요시히로
IPC分类号： H04N5/50
CPC分类号： H04N5/44 , H03J5/244
摘要： PURPOSE: A tuner for receiving television signal to decrease unnecessary copy is provided to prevent an occurrence of an unnecessary copy by passing a high frequency signal between an input terminal and an output terminal when a frequency converter is operated and not passing the high frequency signal when the frequency converter is not operated. CONSTITUTION: A VHF band frequency converter(4) has a VHF band mixer(12) and a VHF band local oscillator(13) and converts a VHF band television signal into an intermediate frequency. A UHF band frequency converter(8) has a UHF band mixer(14) and a UHF band local oscillator(15) and converts a UHF band television signal into an intermediate frequency. A band converter(10) operates the VHF band frequency converter(4) and the UHF band frequency converter(8) selectively. First and second switch circuits(3,5) are installed at a front side of the VHF band frequency converter(4) and a front side of the UHF band frequency converter(8). First and second switch circuits(3,5) pass a high frequency signal when a frequency converter located at a rear side is operated and does not pass the high frequency signal when the frequency converter is not operated.
摘要翻译：目的：提供一种用于接收电视信号以减少不必要的副本的调谐器，以防止当频率转换器工作时通过在输入端和输出端之间传递高频信号而发生不必要的拷贝，而不会通过高频信号变频器不工作。构成：VHF频带变频器（4）具有VHF频带混频器（12）和VHF频带本地振荡器（13），并将VHF频带电视信号转换为中频。 UHF频带变频器（8）具有UHF频带混频器（14）和UHF频带本地振荡器（15），并将UHF频带电视信号转换成中频。频带转换器（10）选择性地操作VHF频带变频器（4）和UHF频带变频器（8）。第一和第二开关电路（3,5）安装在VHF频带变频器（4）的前侧和UHF频带变频器（8）的前侧。当位于后侧的变频器被操作时，第一和第二开关电路（3,5）通过高频信号，并且当变频器不工作时不通过高频信号。

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