公开(公告)号：EP1231714A1

公开(公告)日：2002-08-14

申请号：EP02001439.5

申请日：2002-01-21

Applicant: Harman/Becker Automotive Systems GmbH

Inventor： Zahm, Michael ,  Geiger, Erich

IPC: H03J3/24 ,  H04B1/10

CPC classification number: H03J3/24

Abstract: Fernsehempfänger mit einer Kanalwählerstufe (2), einer dieser nachgeschalteten selektiven Filterstufe (3) und einer dieser nachgeschalteten Zwischenfrequenzstufe (4), bei dem eine Feldstärkedetektionsstufe (9) vorgesehen ist, die ein der Feldstärke des Empfangssignals proportionales Feldstärkesignal erzeugt, wobei die selektive Filterstufe (3) eine Übertragungsfunktion aufweist, die mittels eines Steuersignals (TS) veränderbar ist, und das Steuersignal (TS) aus dem Feldstärkesignal hergeleitet ist.

Abstract translation: 一种电视接收机，包括一个信道选择阶段（2），这些下游选择性滤波器阶段（3）中的一个和该中频级（4）的下游，其中，生成所接收的信号的场强（9）本发明提供一种场强检测级正比于磁场强度信号，其中，所述选择性滤波器级（ 具有3）具有其是（通过控制信号TS的装置的传递函数）是可变的，并且衍生自的场强信号的控制信号（TS）。

公开(公告)号：EP3519840A1

公开(公告)日：2019-08-07

申请号：EP17857502.3

申请日：2017-09-29

Applicant: Hyperfine Research, Inc.

Inventor： REARICK, Todd ,  JORDAN, Jeremy Christopher ,  CHARVAT, Gregory L. ,  ROSEN, Matthew Scot

IPC: G01R33/025 ,  G01R33/20 ,  G01R33/32 ,  G01R33/36 ,  G01R33/58 ,  H03J3/12 ,  H03J3/24 ,  H01F7/02

公开(公告)号：EP1604425A1

公开(公告)日：2005-12-14

申请号：EP04721210.5

申请日：2004-03-17

Applicant: Filtronic Comtek Oy

Inventor： ALA-KOJOLA, Jouni

IPC: H01P7/04 ,  H03J3/24

CPC classification number: H01P1/2053

Abstract: The invention relates to a tunable resonator filter. In each resonator cavity of the filter there is a movable dielectric tuning element (728; 748) to adjust the resonator’s natural frequency. The tuning elements are advantageously arranged to be moved by a common control implemented by a rod (708) joining them together, to shift the filter’s band through equal displacements of the natural frequencies of the resonators. When the tuning element is moved horizontally sidewards from the resonator (710; 720; 730; 740; 750; 760) axis, the electrical length and natural frequency of the resonator change. In that case, when sub-bands are used it is not necessary to tune the filters separately for each sub-band in the stage of manufacture, as the sub-band can be chosen when the filter is put into use. The tuning elements can be movable also in each resonator separately, to implement the basic tuning in connection with the manufacture of the filter. The basic tuning can be automated, in other words it can be made without inconvenient handwork.

公开(公告)号：EP0244020A2

公开(公告)日：1987-11-04

申请号：EP87200758.8

申请日：1987-04-23

Applicant: PHILIPS ELECTRONICS UK LIMITED ,  Philips Electronics N.V.

Inventor： Hughes, John Barry

IPC: H03H11/12 ,  H03J3/24

CPC classification number: H03H11/12 ,  H03J3/24

Abstract: An integrated electrical filter includes resistors (R10-12) and capacitors (C10-12). The capacitors are controllable in value by means of a control circuit (100-109) and are formed by a binary weighted array of capacitor elements which are selectively connectable in parallel. A controlled oscillator (103 Figure 1) or a controlled phase shifting network (113 Figure 2) includes a capacitor of the same form as the filter capacitors. The oscillator (103) or phase shifter (113) form part of a phase locked loop (101, 104, 105, 107) which produces a digital code as its control signal at the output of an up/down counter (107). This digital code is latched in a register (109) to provide a control signal for the filter capacitors and is used directly to control the capacitor(s) in the controlled oscillator or phase shifter.

Abstract translation: 集成电路滤波器包括电阻（R10-12）和电容（C10-12）。 这些电容器借助于控制电路（100-109）是可控制的，并且由可选择地可并联连接的电容器元件的二进制加权阵列形成。 受控振荡器（图1的103）或受控相移网络（图2的113）包括与滤波电容器形式相同的电容器。 振荡器（103）或移相器（113）形成锁相环（101,104,105,107）的一部分，该锁相环在增/减计数器（107）的输出端产生数字码作为其控制信号。 该数字码被锁存在寄存器（109）中以提供用于滤波电容器的控制信号，并直接用于控制受控振荡器或移相器中的电容器。

公开(公告)号：EP1436922B1

公开(公告)日：2010-11-10

申请号：EP02778355.4

申请日：2002-09-24

Applicant: Gonda, Rumi Sheryar

Inventor： Gonda, Rumi Sheryar

IPC: H04J3/02 ,  H04J3/14 ,  H03J3/24

CPC classification number: H04L12/4641 ,  H04J3/14 ,  H04J2203/0085 ,  H04L49/201 ,  H04L49/25 ,  H04L49/3009 ,  H04L49/351

Abstract: An Ethernet MAC sublayer is provided for supporting Ethernet MAC circuits in an Ethernet Network. In accordance with one embodiment, an Ethernet MAC sublayer is provided for processing and setting up circuits. The MAC sublayer provides support for higher level signaling (112, 122, 132) and routing (114, 124, 134) applications to implement Ethernet MAC circuit functionality. The MAC sublayer provides interrupts for WAN learning and circuit setup. The MAC sublayer also provides address table entry extension (2102, 2202, 2302) to allow for usage of multiple links between nodes (2100, 2200, 2300). The routing application is used to manage routing information, maintain a MAC to port mapping database, and manage port resources. The signaling application is used to set up and manage circuits. In accordance to various embodiments, circuits of various types and properties can be managed in the Ethernet Network.

公开(公告)号：EP1911159A1

公开(公告)日：2008-04-16

申请号：EP06766077.9

申请日：2006-08-01

Applicant: R.F. Magic Inc.

Inventor： COPPOLA, Francesco ,  CIPRIANI, Stefano ,  CARPINETO, Lorenzo ,  PUCCIO, Gianni ,  DUVIVIER, Eric ,  BISANTI, Biagio ,  ALDERTON, Martin

IPC: H03J3/00 ,  H03J5/24 ,  H03J3/24

CPC classification number: H03J5/244 ,  G06F1/06 ,  H03H11/1291 ,  H03J1/005 ,  H03J3/24 ,  H03J7/065 ,  H03J7/08 ,  H03J2200/10 ,  H03J2200/17 ,  H03L7/0891 ,  H03L7/093 ,  H03L7/099 ,  H03L7/10 ,  H03L7/1974 ,  H03L7/1976 ,  H03L7/22 ,  H03L7/23 ,  H03L2207/06

Abstract: A multiple frequency source system includes at least one frequency source tunable to a predefined target frequency, and at least one additional frequency source operable to generate a second signal at a frequency which is either higher or lower than the target frequency. A method for tuning the tunable frequency source to the target frequency during concurrent generation of the second signal includes (i) controlling the tunable frequency source to tune to at least one frequency point frequency lower than the target frequency, and thereafter controlling the oscillator to tune to the target frequency, when the second signal is higher in frequency than the target frequency, or (ii) controlling the tunable frequency source to tune to at least one frequency point higher than the target frequency, and thereafter controlling the tunable frequency source to tune to the target frequency, when the second signal is lower in frequency than the target frequency.

公开(公告)号：EP0244020A3

公开(公告)日：1989-08-02

申请号：EP87200758.8

申请日：1987-04-23

Applicant: PHILIPS ELECTRONICS UK LIMITED ,  Philips Electronics N.V.

Inventor： Hughes, John Barry

IPC: H03H11/12 ,  H03J3/24

CPC classification number: H03H11/12 ,  H03J3/24

Abstract: An integrated electrical filter includes resistors (R10-12) and capacitors (C10-12). The capacitors are controllable in value by means of a control circuit (100-109) and are formed by a binary weighted array of capacitor elements which are selectively connectable in parallel. A controlled oscillator (103 Figure 1) or a controlled phase shifting network (113 Figure 2) includes a capacitor of the same form as the filter capacitors. The oscillator (103) or phase shifter (113) form part of a phase locked loop (101, 104, 105, 107) which produces a digital code as its control signal at the output of an up/down counter (107). This digital code is latched in a register (109) to provide a control signal for the filter capacitors and is used directly to control the capacitor(s) in the controlled oscillator or phase shifter.

公开(公告)号：EP1231714B1

公开(公告)日：2005-05-18

申请号：EP02001439.5

申请日：2002-01-21

Applicant: Harman/Becker Automotive Systems GmbH

Inventor： Zahm, Michael ,  Geiger, Erich

IPC: H03J3/24 ,  H04B1/10

CPC classification number: H03J3/24

公开(公告)号：EP0245896A3

公开(公告)日：1989-08-02

申请号：EP87200757.0

申请日：1987-04-23

Applicant: PHILIPS ELECTRONICS UK LIMITED ,  Philips Electronics N.V.

Inventor： Hughes, John Barry

IPC: H03H11/12 ,  H03J3/24 ,  H03H11/04

CPC classification number: H03H11/04 ,  H03H11/12 ,  H03J3/24

Abstract: A continuous time electrical filter fabricated as an integrated circuit includes capacitors (CF,CN) and resistors (R1,R2). Since capacitors and resistors are difficult to integrate with accurately defined values a trimming circuit is provided which operates switches (S1-SN) to select appropriate ones of the capacitors (CN) to accurately define the cut-off frequency of the filter. The trimming circuit comprises a capacitor (TC2) which is charged through a resistor TR1 during a first period and which is discharged in incremental steps by capacitor (TC1). The number of incremental steps is counted by a counter (11) and transferred to a register (13). The outputs (S1-SN) of the register (13) control the switches (S1-SN). Instead of adjusting the value of the capacitors in the filter the values of the resistors may be adjusted. If this is done a convenient procedure is to short out selected portions of the resistors. More than one capacitor or resistor may be adjusted using a single counter and register. The trimming circuit also includes a switch (TS11) which connects the parasitic capacitance (CP1, CP2) of the capacitor (TC1) and an underlying conductive layer (22) and of a dummy resistor and the underlying layer (22) in parallel with the capacitor (TC1). The filter circuit is arranged so that the parasitic capacitance between the resistor (R1) and an underlying conductive layer and that between the capacitors (CF, CN) and the underlying conductive layer are connected in parallel with the fixed capacitor CF.

Abstract translation: 作为集成电路制造的连续时间电滤波器包括电容器（CF，CN）和电阻器（R1，R2）。 由于电容器和电阻器难以与精确定义的值集成，因此提供微调电路，其操作开关（S1-SN）以选择适当的电容器（CN）以精确定义滤波器的截止频率。 微调电路包括电容器（TC2），该电容器在第一周期期间通过电阻器TR1充电并且通过电容器（TC1）以递增的步骤放电。 递增步数由计数器（11）计数并传送到寄存器（13）。 寄存器（13）的输出（S1-SN）控制开关（S1-SN）。 除了调整滤波器中电容器的值之外，还可以调整电阻器的值。 如果做到这一点，一个方便的程序是缩短电阻的选定部分。 可以使用单个计数器和寄存器来调整多个电容器或电阻器。 微调电路还包括将电容器（TC1）的寄生电容（CP1，CP2）与下层导电层（22）和虚拟电阻器以及下层（22）并联连接的开关（TS11） 电容器（TC1）。 滤波器电路被配置为使得电阻器（R1）与下面的导电层之间的寄生电容以及电容器（CF，CN）与下面的导电层之间的寄生电容与固定电容器CF并联连接。

公开(公告)号：EP0245896A2

公开(公告)日：1987-11-19

申请号：EP87200757.0

申请日：1987-04-23

Applicant: PHILIPS ELECTRONICS UK LIMITED ,  Philips Electronics N.V.

Inventor： Hughes, John Barry

IPC: H03H11/12 ,  H03J3/24 ,  H03H11/04

CPC classification number: H03H11/04 ,  H03H11/12 ,  H03J3/24

Abstract: A continuous time electrical filter fabricated as an integrated circuit includes capacitors (CF,CN) and resistors (R1,R2). Since capacitors and resistors are difficult to integrate with accurately defined values a trimming circuit is provided which operates switches (S1-SN) to select appropriate ones of the capacitors (CN) to accurately define the cut-off frequency of the filter.
The trimming circuit comprises a capacitor (TC2) which is charged through a resistor TR1 during a first period and which is discharged in incremental steps by capacitor (TC1). The number of incremental steps is counted by a counter (11) and transferred to a register (13). The outputs (S1-SN) of the register (13) control the switches (S1-SN). Instead of adjusting the value of the capacitors in the filter the values of the resistors may be adjusted. If this is done a convenient procedure is to short out selected portions of the resistors. More than one capacitor or resistor may be adjusted using a single counter and register.
The trimming circuit also includes a switch (TS11) which connects the parasitic capacitance (CP1, CP2) of the capacitor (TC1) and an underlying conductive layer (22) and of a dummy resistor and the underlying layer (22) in parallel with the capacitor (TC1). The filter circuit is arranged so that the parasitic capacitance between the resistor (R1) and an underlying conductive layer and that between the capacitors (CF, CN) and the underlying conductive layer are connected in parallel with the fixed capacitor CF.

Abstract translation: 作为集成电路制造的连续时间滤波器包括电容器（CF，CN）和电阻器（R1，R2）。 由于电容器和电阻器难以与精确定义的值集成，所以提供了一种调节电路，其操作开关（S1-SN）以选择适当的电容器（CN）以精确地定义滤波器的截止频率。 微调电路包括电容器（TC2），其在第一时段期间通过电阻器TR1充电，并且通过电容器（TC1）以递增的步长放电。 增量步数由计数器（11）计数并传送到寄存器（13）。 寄存器（13）的输出（S1-SN）控制开关（S1-SN）。 代替调整滤波器中电容器的值，可以调节电阻值。 如果这样做，一个方便的过程是短路电阻器的选定部分。 可以使用单个计数器和寄存器调整多个电容器或电阻器。 微调电路还包括将电容器（TC1）的寄生电容（CP1，CP2）和下层导电层（22）以及虚拟电阻器和下层（22）并联的开关（TS11） 电容（TC1）。 滤波器电路被布置成使得电阻器（R1）和下面的导电层之间以及电容器（CF，CN）和下面的导电层之间的寄生电容与固定电容器CF并联连接。