METHOD AND APPARATUS FOR VIDEO TRANSMISSION OVER LONG DISTANCES USING TWISTED PAIR CABLES
    11.
    发明申请
    METHOD AND APPARATUS FOR VIDEO TRANSMISSION OVER LONG DISTANCES USING TWISTED PAIR CABLES 审中-公开
    使用扭绞对电缆在长距离上进行视频传输的方法和设备

    公开(公告)号:WO2008057531A2

    公开(公告)日:2008-05-15

    申请号:PCT/US2007023356

    申请日:2007-11-06

    CPC classification number: H04N7/108 H04B3/10 H04L25/0272 H04L25/0296

    Abstract: A system capable of transmitting and receiving high frequency video signals across various lengths of a twisted pair cable while maintaining video quality is presented. The system includes a transmitter and a receiver tandem coupled together over twisted pair cable. Each video component is mixed with a reference signal in the transmitter and driven differentially onto the twisted pair cable. Upon detection of a signal in the twisted pair cable, the receiver adjusts its internal gains until the known characteristic of the reference signal is achieved. The receiver then automatically adjusts the skew & DC offset. Thus, the receiver is able to automatically measure the degradation in video quality and appropriately compensate the video signals for the accumulated degradation caused primarily by the transmission between the transmitter and the receiver. The compensated video may subsequently be provided to a video display device.

    Abstract translation: 介绍了能够在保持视频质量的同时在不同长度的双绞线电缆上发送和接收高频视频信号的系统。 该系统包括通过双绞线电缆连接在一起的发射器和接收器。 每个视频组件都与发送器中的参考信号混合并差分驱动到双绞线上。 在检测到双绞线电缆中的信号时,接收器调整其内部增益,直到达到参考信号的已知特性。 接收器然后自动调整偏移和直流偏移。 因此,接收机能够自动测量视频质量的下降,并适当地补偿视频信号中主要由发射机和接收机之间的传输引起的累积恶化。 补偿的视频可以随后被提供给视频显示设备。

    CIRCUITS AND METHODS FOR FAST-SETTLING SIGNAL ALIGNMENT AND DC OFFSET REMOVAL
    12.
    发明申请
    CIRCUITS AND METHODS FOR FAST-SETTLING SIGNAL ALIGNMENT AND DC OFFSET REMOVAL 审中-公开
    用于快速建立信号对准和DC偏移的电路和方法

    公开(公告)号:WO2004100567A3

    公开(公告)日:2005-01-20

    申请号:PCT/US2004012892

    申请日:2004-04-27

    CPC classification number: H04L25/0296

    Abstract: Fast settling circuits and methods designed to align input signal amplitude level and to remove DC offset voltages with minimal loss of low frequency signal in receiving analog circuits are disclosed. With the key innovative circuits and methods for signal peak alignment, the disclosed circuits and methods achieve fast settling without significant attenuation of the input signal. Peak aligning circuits and methods can be implemented along with conventional RC AC coupling circuits. In applying the aligning circuits and methods to differential signal pair, DC offsets can be easily removed.

    Abstract translation: 公开了用于调整输入信号幅度电平的快速稳定电路和方法,并且在接收模拟电路中以最小的低频信号损失去除DC偏移电压。 利用用于信号峰对准的关键创新电路和方法,所公开的电路和方法实现快速建立,而没有输入信号的显着衰减。 峰值对准电路和方法可以与传统的RC AC耦合电路一起实现。 在将对准电路和方法应用于差分信号对时,可以容易地去除直流偏移。

    KOMMUNIKATIONSSYSTEM MIT RÜCKKANAL REALISIERT DURCH PEGELVERSCHIEBUNG AUF DER DATENLEITUNG
    15.
    发明申请
    KOMMUNIKATIONSSYSTEM MIT RÜCKKANAL REALISIERT DURCH PEGELVERSCHIEBUNG AUF DER DATENLEITUNG 审中-公开
    背部通道通信系统中实现BY电平转换在数据线

    公开(公告)号:WO2012069254A1

    公开(公告)日:2012-05-31

    申请号:PCT/EP2011/067960

    申请日:2011-10-14

    CPC classification number: H04L25/38 H04L1/1692 H04L25/0284 H04L25/0296

    Abstract: Es wird ein Kommunikationssystem (1) mit einem Sender (2) und einem Empfänger (3) jeweils mit einer unidirektionalen Schnittstelle (21, 31) und einer zwischen Sender (2) und Empfänger (3) verbindbaren unidirektionalen Übertragungsleitung (4) beschrieben, wobei der Empfänger eine Prüf- und eine Auswerteschaltung (34) umfasst, und der Sender (2) eine Sendeeinrichtung (22) und eine Diagnoseeinrichtung (23) umfasst. Damit möglichst einfach und kostengünstig der Sender vom Empfänger (3) Informationen, in der Gegenrichtung einer unidirektionalen Signalermittlung erhält, sind von der Sendeeinrichtung (22) sendbare Signale von einer Mitteilungseinrichtung (32) des Empfängers (3) als Sendeinformation zur eigenen Zustandsmitteilung veränderbar und sind an der senderseitigen Schnittstelle (21) von der Detektoreinrichtung (230) detektierbar.

    Abstract translation: 公开的是(1)具有发射器(2)和一个接收机(3)每一个都具有一个单向接口(21,31)和所述发送器(2)和接收器之间的通信系统(3)连接的单向传输线(4),其特征在于 接收器包括测试和评估电路(34)和发射器(2)发送装置(22)和一个诊断装置(23)。 因此,如简单地和来自接收器的发送器的成本(3),和在相反方向接收的单向信号的检测,是从发送装置(22)从所述接收器的通信设备(32)发送的信号(3)的变量作为其自身的状态信息的传输信息,并且 在从检测器装置(230)检测到的发送侧接口(21)。

    PSEUDO-DIFFERENTIAL INTERFACING DEVICE HAVING A BALANCING CIRCUIT
    16.
    发明申请
    PSEUDO-DIFFERENTIAL INTERFACING DEVICE HAVING A BALANCING CIRCUIT 审中-公开
    具有平衡电路的PSEUDO-差分接口器件

    公开(公告)号:WO2009007864A1

    公开(公告)日:2009-01-15

    申请号:PCT/IB2008/051942

    申请日:2008-05-16

    CPC classification number: H04L25/0274 H04B3/30 H04L25/0296 H04L25/085

    Abstract: The invention relates to an interfacing device for pseudo-differential transmission through interconnections used for sending a plurality of electrical signals. The interfacing device of the invention comprises signal terminals (101) and a common terminal ( 100). A transmitting circuit (5) receives the "input signals of the transmitting circuit" coming from a source (2). The output of the transmitting circuit (5) delivers, when the transmitting circuit is in the activated state, voltages between one of said signal terminals (101) and said common terminal (100). A receiving circuit (6) delivers, when the receiving circuit is in the activated state, "output signals of the receiving circuit" determined each by the voltage between one of said signal terminals (101) and said common terminal (100), to the destination (3). The balancing circuit (9) is such that, when the transmitting circuit is in the activated state, the current flowing out of the common terminal (100) approximates the opposite of the sum of the currents flowing out of the signal terminals (101).

    Abstract translation: 本发明涉及一种用于通过用于发送多个电信号的互连的伪差分传输的接口装置。 本发明的接口装置包括信号端子(101)和公共端子(100)。 发送电路(5)接收来自源(2)的“发送电路的输入信号”。 当发射电路处于激活状态时,发射电路(5)的输出在所述信号端子(101)之一和所述公共端子(100)之间传递电压。 接收电路(6)在接收电路处于激活状态时,将所述信号端子(101)和所述公共端子(100)中的一个之间的电压确定为“接收电路的输出信号” 目的地(3)。 平衡电路(9)使得当发送电路处于激活状态时,流出公共端子(100)的电流近似于从信号端子(101)流出的电流之和的相反。

    CIRCUITS AND METHODS FOR FAST-SETTLING SIGNAL ALIGNMENT AND DC OFFSET REMOVAL
    17.
    发明申请
    CIRCUITS AND METHODS FOR FAST-SETTLING SIGNAL ALIGNMENT AND DC OFFSET REMOVAL 审中-公开
    用于快速建立信号对准和DC偏移的电路和方法

    公开(公告)号:WO2004100567A2

    公开(公告)日:2004-11-18

    申请号:PCT/US2004/012892

    申请日:2004-04-27

    IPC: H04Q

    CPC classification number: H04L25/0296

    Abstract: Fast settling circuits and methods designed to align input signal amplitude level and to remove DC offset voltages with minimal loss of low frequency signal in receiving analog circuits are disclosed. With the key innovative circuits and methods for signal peak alignment, the disclosed circuits and methods achieve fast settling without significant attenuation of the input signal. Peak aligning circuits and methods can be implemented along with conventional RC AC coupling circuits. In applying the aligning circuits and methods to differential signal pair, DC offsets can be easily removed.

    Abstract translation: 公开了用于调整输入信号幅度电平的快速稳定电路和方法,并且在接收模拟电路中以最小的低频信号损失去除DC偏移电压。 利用用于信号峰对准的关键创新电路和方法,所公开的电路和方法实现快速建立,而没有输入信号的显着衰减。 峰值对准电路和方法可以与传统的RC AC耦合电路一起实现。 在将对准电路和方法应用于差分信号对时,可以容易地去除直流偏移。

    ARRANGEMENT FOR COMPENSATION OF GROUND OFFSET IN A DATA BUS SYSTEM
    18.
    发明申请
    ARRANGEMENT FOR COMPENSATION OF GROUND OFFSET IN A DATA BUS SYSTEM 审中-公开
    在数据总线系统中补偿接地偏移的安排

    公开(公告)号:WO2004072854A1

    公开(公告)日:2004-08-26

    申请号:PCT/IB2004/000314

    申请日:2004-02-09

    Inventor: ELEND, Bernd

    CPC classification number: H04L25/061 H04L25/0284 H04L25/0296

    Abstract: A description is given of an arrangement for compensation of ground offset in a data bus system comprising a plurality of communication devices (2, 10) which are each supplied with an operating voltage (U0) by a voltage source (4; 14), are connected to ground (G1); G2) and have a data bus connection (6; 12) via which they are connected to a data bus line (8). The special thing about the invention is that between operating voltage (U0) and ground (G2) at least one voltage dividing device (R3, R6) is connected whose output is coupled to the data bus connection (12) of at least one communication device (10) and whose voltage dividing ratio is selected such that an offset of the ground (G2) of the communication device (10), whose data bus connection (12) is coupled to the voltage dividing device (R3, R6), is in essence compensated compared to ground (G1) of another communication device (2).

    Abstract translation: 给出了包括多个通过电压源(4; 14)被提供有工作电压(U0)的多个通信装置(2,10)的数据总线系统中补偿接地偏移的装置的描述, 连接到地面(G1); G2)并具有数据总线连接(6; 12),通过它们连接到数据总线(8)。 关于本发明的特别之处在于,在工作电压(U0)和地(G2)之间,连接至少一个分压装置(R3,R6),其输出耦合到至少一个通信装置的数据总线连接(12) (10)并且其分压比被选择为使得其数据总线连接(12)耦合到分压装置(R3,R6)的通信装置(10)的接地(G2)的偏移处于 与另一个通信设备(2)的接地(G1)相比,本质补偿。

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