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1. 发明公开

EP1553776A1 Multichannel quadrature modulation 无效
标题翻译： Mehrfachkanal mit Quadraturmodulation
公开(公告)号：EP1553776A1
公开(公告)日：2005-07-13
申请号：EP05006721.4
申请日：1993-01-07
申请人： Broadband Innovations, Inc.
发明人： Katznelson, Ron D.
IPC分类号： H04N7/167
CPC分类号： H04L5/06 , H04N7/08 , H04N7/162 , H04N7/1675 , H04N7/169 , H04N7/1713
摘要： A method and apparatus for modulating both quadrature components of each of a plurality of RF signals comprising a multichannel signal is disclosed. By employing certain digital signal processing techniques, a pair of composite baseband signals are produced in manner that is uniquely associated with the modulation content of the RF signals. According to one aspect of the invention, by using the composite baseband signals to modulate in quadrature a single quadrature modulator, the composite baseband signals are shown to have a baseband frequency span that is substantially half of the frequency range, spanned by the multichannel signal. An application for the CATV field in which a television channel spacing between the RF signals is disclosed.
摘要翻译：公开了一种用于调制包括多通道信号的多个RF信号中的每一个的正交分量的方法和装置。通过采用某些数字信号处理技术，以与RF信号的调制内容唯一相关联的方式产生一对复合基带信号。根据本发明的一个方面，通过使用复合基带信号以正交调制单个正交调制器，复合基带信号被示为具有基本频率跨度，该基带频率跨度基本上是由多信道信号跨越的频率范围的一半。公开了其中在RF信号之间的电视频道间隔的CATV字段的应用。

2. 发明授权

EP1115248B1 Method and apparatus for generating a multichannel signal 失效转让
标题翻译：用于生成多声道信号的方法和装置
公开(公告)号：EP1115248B1
公开(公告)日：2005-03-30
申请号：EP01104853.5
申请日：1993-01-07
申请人： Broadband Innovations, Inc.
发明人： Katznelson, Ron D.
IPC分类号： H04N7/167 , H04N7/171
CPC分类号： H04L5/06 , H04N7/08 , H04N7/162 , H04N7/1675 , H04N7/169 , H04N7/1713

3. 发明公开

EP1290795A2 METHOD OF DIGITALLY SYNTHESIZING FREQUENCIES WITH RATIONAL RELATIONSHIPS TO A REFERENCE FREQUENCY 审中-公开
标题翻译：方法为参考频率理性条件频率数字合成
公开(公告)号：EP1290795A2
公开(公告)日：2003-03-12
申请号：EP01939530.0
申请日：2001-05-25
申请人： Broadband Innovations, Inc.
发明人： KATZNELSON, Ron, D.
IPC分类号： H03L1/00
CPC分类号： H03L7/16
摘要： A method is disclosed for synthesizing a frequency which has a rational relation with respect to a reference or clock frequency, the method comprising: providing a plurality of periodic pattern signals (g0-gN); feeding said plurality of periodic pattern signals to a N-way commutator (20); clocking the periodic pattern generator at a frequency f1; and rotating the commutator (20) at a frequency f2 thereby obtaining an output frequency of f1+f2 or f1-f2.

4. 发明公开

EP1285495A2 METHOD AND APPARATUS FOR ACHIEVING BROADBAND MATCHING OF NARROW-BAND RESONATOR FILTER IMPEDANCES TO LOADS AND SOURCES 审中-公开
标题翻译：方法和装置SCHMALLBANDIGEN谐振滤波器阻抗的负载和来源宽带阻抗匹配
公开(公告)号：EP1285495A2
公开(公告)日：2003-02-26
申请号：EP01939573.0
申请日：2001-05-24
申请人： Broadband Innovations, Inc.
发明人： PETROVIC, Branislav, A.
IPC分类号： H03H7/38
CPC分类号： H03H7/38
摘要： A circuit for matching the impedance of a narrow-band resonator filter presented to a port over a broad range of frequencies employs a second resonator that has substantially the same transfer characteristic as the resonator filter. The resonator filter is isolated from the output port using a resonator having a dual characteristic that behaves as a short circuit in the pass-band of the resonator filter, and is an open circuit in the stop-band of the resonator filter. The second resonator is isolated from the port using a resistor that has a value on the order of the ideal or desired impedance to be presented at the port. The circuit provides an impedance at the port that is approximately equal to the desired impedance in the stop-band, and an impedance that is slightly degraded in the pass-band, and particularly at the on-frequency of the resonator filter. The circuit is particularly useful when narrow band-pass resonator filters are employed in broadband multichannel systems coupled to the input ports of an impedance sensitive load, such as a passive mixers used to perform frequency conversion over a wide range of frequencies.

5. 发明公开

EP1147602A1 NARROW BAND-PASS TUNED RESONATOR FILTER TOPOLOGIES HAVING HIGH SELECTIVITY, LOW INSERTION LOSS AND IMPROVED OUT-OF BAND REJECTION OVER EXTENDED FREQUENCY RANGES 审中-公开
标题翻译：相合窄带谐振拓扑选择性高，传输损耗低和改进的带扣的出来的频率延伸范围
公开(公告)号：EP1147602A1
公开(公告)日：2001-10-24
申请号：EP99963029.6
申请日：1999-12-06
申请人： Broadband Innovations, Inc.
发明人： PETROVIC, Branislav
IPC分类号： H03H7/09 , H03H7/01
CPC分类号： H03H7/09 , H03H7/0123 , H03H7/1775
摘要： A tuned resonator circuit topology is disclosed that permits implementation of narrow band-pass filters having high loaded Q and optimal coupling (for low insertion loss) using a parallel tuned resonator topology at freqencies in the 1 to 2 GHz range and beyond. The topology consists of a mirror image of the parallel tuned circuit about the signal line of a conventional parallel tuned circuit to effect a cancellation of virtually all of the induced currents between the inductive elements of the resonators. This reduction in induced currents reduces the magnetic coupling between the resonators, thereby offsetting the increase in overall coupling between the resonators as frequency increases, and thereby serves to maintain optimal coupling between the resonators as the frequency of operation increases. Moreover, the mirror image topology increases the parallelism between the inductive elements in the resonators, thereby decreasing the inductance values and permitting an increase in capacitance values. Increasing the capacitancevalues of the resonators effectively offsets the decrease in the loaded Q as frequency is increased. The topology works for any number of parallel resonators. As the resolution of the manufacturing process decreases (e.g. from printed circuit board to integrated circuit processes), the range of operating frequencies scales with the increase in resolution.

6. 发明公开

EP0622003A1 MULTICHANNEL TELEVISION SIGNAL SCRAMBLING AND DESCRAMBLING SYSTEM AND METHOD 失效转让
标题翻译：多通道电视信号加扰和解扰系统和方法
公开(公告)号：EP0622003A1
公开(公告)日：1994-11-02
申请号：EP93903401.0
申请日：1993-01-07
申请人： Multichannel Communication Sciences, Inc.
发明人： KATZNELSON, Ron D.
IPC分类号： H03C1 , H04J1 , H04L5 , H04N7
CPC分类号： H04L5/06 , H04N7/08 , H04N7/162 , H04N7/1675 , H04N7/169 , H04N7/1713
摘要： Système de commande d'accès à des signaux télévisuels multicanaux dans lequel on effectuer le traitement du signal à large bande en injectant des signaux de radiofréquence (RF) à porte cohérente sur une pluralité de canaux, ce qui permet d'effectuer le débrouillage sélectif d'un sous-ensemble arbitraire de canaux situé dans un groupe de canaux. Ce système utilise une commande de vecteur tournant de signal d'injection à boucle fermée pour maintenir une relation pratiquement constante entre les signaux télévisuels et les signaux injectés. Les signaux combinés sont distribués à des abonnés qui peuvent alors utiliser leur installation prévue pour le câble. Le signal à large bande est couplé à un amplificateur (104) à large bande par l'intermédiaire d'un diviseur de puissance (102). Dans la ligne (114) les signaux injectés sont combinés avec le signal amplifié à large bande par le coupleur directif (108) et il en résulte un signal composite sur la ligne (109). Le signal à large bande de la ligne (109) est distribué au point d'accès (112) de l'abonné par un branchement directionnel (110). Les signaux injectés qui forment ensemble le signal composite injecté au niveau de la ligne (114) sont générés par un générateur (136) numérique à large bande qui alimente le commutateur RF (116). Pendant le moment où l'injection est nécessaire, le commutateur RF (116) se trouve dans la position (117) indiquée sur le schéma.
摘要翻译：一种多信道电视信号接入控制系统，其中通过在多个信道上注入相干门射频（RF）信号来执行宽带信号处理，由此能够选择性地解扰一组频道中的任意频道子集。该系统利用闭环注入信号矢量控制来维持电视信号和注入信号之间基本恒定的关系。合并的信号被分配给订户，然后用户可以使用他们的计划安装电缆。宽带信号经功率分配器（102）耦合到宽带放大器（104）。在线（114）中，注入的信号通过定向耦合器（108）与放大的宽带信号组合，并且在线（109）上产生合成信号。线路（109）的宽带信号通过有向分支（110）分配给用户的接入点（112）。一起形成在线路（114）处注入的复合信号的注入信号由为RF开关（116）供电的宽带数字发生器（136）产生。在需要注射时，RF开关（116）处于图中所示的位置（117）。

7. 发明公开

EP1287616A2 PLL FOR SYNTHESIZING FREQUENCIES HAVING RATIONAL RELATIONSHIPS WITH A REFERENCE FREQUENCY 审中-公开
标题翻译： PLL合成理性条件的速度参考频率
公开(公告)号：EP1287616A2
公开(公告)日：2003-03-05
申请号：EP01946002.1
申请日：2001-05-24
申请人： Broadband Innovations, Inc.
发明人： PETROVIC, Branislav, A. , ASHKENASI, Max
IPC分类号： H03L7/16
CPC分类号： H03B21/025 , H03B21/04 , H03L7/16
摘要： A single loop PLL frequency synthesizer, operates at comparison frequencies above 100 MHz, with excellent phase noise performance, but allows for small frequency steps lower than 10 kHz and is suitable for integration within ASICs. The output frequency and the reference clock frequency always have a rational relationship (i.e. the ratio of the two frequencies can always be represented as a ratio of two integer numbers). This ratio can always be expanded into various expressions of equivalent fraction expansions. The equivalent fractions take the form of a series of divided, added or subtracted terms, each term itself being a rational number. For each synthesized frequency, the computation of expansion terms yields specific, different values of the terms, with possibly multiple solutions. The realization in hardware of the computed fraction expansion terms is achieved by the means of a specific combination of frequency division and frequency translation of the reference clock frequency and/or of the oscillator frequency.

8. 发明公开

EP1115248A1 Method and apparatus for generating a multichannel signal 失效转让
标题翻译： Verfahren undGerätzur Erzeugung eines Mehrkanalsignal
公开(公告)号：EP1115248A1
公开(公告)日：2001-07-11
申请号：EP01104853.5
申请日：1993-01-07
申请人： Multichannel Communication Sciences, Inc.
发明人： Katznelson, Ron D.
IPC分类号： H04N7/167 , H04N7/171
CPC分类号： H04L5/06 , H04N7/08 , H04N7/162 , H04N7/1675 , H04N7/169 , H04N7/1713
摘要： A multichannel television access control system is disclosed wherein processing of the broadband signal is performed by gated coherent RF injection on a plurality of channels, thereby effecting selective descrambling of an arbitrary subset of channels in a channel group. The system provides for a closed loop injection signal phasor control so as to maintain substantially constant relationship between the television signals and the injected signals. The combined signals are supplied to subscribers enabling the use of their cable ready equipment. The broadband signal is coupled to a broadband amplifier (104) via a power splitter (102). The injected signals are combined through line (114) with the amplified broadband signal by directional coupler (108), resulting in the composite signal on line (109). The broadband signal on line (109) is fed to the subscriber port (112) through directional tap (110). The injected signals forming together the composite signal injected at line (114) are generated by a digital broadband generator (136) feeding RF switch (116). During the time in which injection is required. RF switch (116) is at position (117).
摘要翻译：公开了一种多通道电视接入控制系统，其中通过在多个信道上的门控相干RF注入来执行宽带信号的处理，从而对通道组中的任意信道子集进行选择性解扰。该系统提供闭环注入信号相量控制，以便在电视信号和注入的信号之间保持基本恒定的关系。组合的信号被提供给订户，使得能够使用其有线就绪设备。宽带信号通过功率分配器（102）耦合到宽带放大器（104）。注入的信号通过线路（114）与定向耦合器（108）的放大的宽带信号组合，导致线路（109）上的复合信号。线路（109）上的宽带信号通过方向分接头（110）馈送到用户端口（112）。形成在线（114）处注入的复合信号的注入信号由馈送RF开关（116）的数字宽带发生器（136）产生。在需要注射的时间内。 RF开关（116）处于位置（117）。

9. 发明公开

EP0622003A4 MULTICHANNEL TELEVISION SIGNAL SCRAMBLING AND DESCRAMBLING SYSTEM AND METHOD. 失效转让
标题翻译：多频道电视信号和解码系统供应和程序。
公开(公告)号：EP0622003A4
公开(公告)日：1994-09-08
申请号：EP93903401
申请日：1993-01-07
申请人： MULTICHANNEL COMM SCIENCES INC
发明人： KATZNELSON RON D
IPC分类号： H03C1/60 , H04J1/00 , H04J1/06 , H04L5/06 , H04N7/12 , H04N7/16 , H04N7/167 , H04N7/169 , H04N7/171
CPC分类号： H04L5/06 , H04N7/08 , H04N7/162 , H04N7/1675 , H04N7/169 , H04N7/1713
摘要： A multichannel television access control system is disclosed wherein processing of the broadbande signal is performed by gated coherent RF injection on a plurality of channels, thereby effecting selective descrambling of an arbitrary subset of channels in a channel group. The system provides for a closed loop injection signal phasor control so as to maintain substantially constant relationship between the television signals and the injected signals. The combined signals are supplied to subscribers enabling the use of their cable ready equipment. The broadband signal is coupled to a broadband amplifier (104) via a power splitter (102). The injected signals are combined through line (114) with the amplified broadband signal by directional coupler (108), resulting in the composite signal on line (109). The broadband signal on line (109) is fed to the subscriber port (112) through directional tap (110). The injected signals forming together the composite signal injected at line (114) are generated by a digital broadband generator (136) feeding RF switch (116). During the time in which injection is required, RF switch (116) is at position (117) as shown in the figure.

10. 发明公开

EP1629673A2 DIGITAL MEDIA SERVER FOR MULTIPLE DIGITAL TV APPLIANCES UTILIZING NATIVE SIGNALS CARRIED ON COAXIAL HOME WIRING NETWORKS 无效
标题翻译：数字媒体服务器支持多种数字电视设备使用本地哄家居布线网络出信号
公开(公告)号：EP1629673A2
公开(公告)日：2006-03-01
申请号：EP04751744.6
申请日：2004-05-10
申请人： Broadband Innovations, Inc.
发明人： KATZNELSON, Ron, D.
IPC分类号： H04N7/173 , H04N7/16
CPC分类号： H04N21/4147 , H04N7/10 , H04N7/173 , H04N21/4122 , H04N21/43615 , H04N21/440218 , H04N21/440281
摘要： A method for providing television services from a head-end to subscriber premises and includes receiving by a first subscriber terminal via a first transmission link coupled to the first subscriber terminal, a first television service transmitted from the head-end. System information data specifying attributes of at least one local television channel is transmitted to a second subscriber terminal coupled to the first subscriber terminal via a second transmission link. The at least one local television channel has a frequency that is unused on the first transmission link by the head-end. The first television service is transmitted by the first subscriber terminal, on one of the at least one local television channel via the second transmission link, to the second subscriber terminal located at the subscriber premises.

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