公开(公告)号：US20060128339A1

公开(公告)日：2006-06-15

申请号：US11347327

申请日：2006-02-06

申请人： Branislav Petrovic

发明人： Branislav Petrovic

IPC分类号： H04B1/10

CPC分类号： H04J1/085 ,  H03D7/161 ,  H04L5/06

摘要： An agile frequency converter provides IF-RF level exchange and notch filtering. System noise and spurious levels generated by channel frequency conversion is reduced in applications requiring broadband combining of frequency converters to form multichannel composite signal. A pair of varactor banks is connected in an arrangement whereby varactor pairs are connected in parallel and capacitor pairs are connected in anti-parallel. Tuning is achieved by circuitry for tuning first and second varactors.

摘要翻译： 敏捷变频器提供IF-RF电平交换和陷波滤波。 通过频率转换产生的系统噪声和杂散电平在需要频率转换器的宽带组合以形成多信道复合信号的应用中被减少。 一对可变电抗器组以一种布置方式连接，由此变容二极管对并联并且电容器对以反并联方式连接。 调谐通过用于调节第一和第二变容二极管的电路来实现。

公开(公告)号：US07061317B2

公开(公告)日：2006-06-13

申请号：US11197318

申请日：2005-08-05

申请人： Branislav Petrovic ,  Cong Nguyen

发明人： Branislav Petrovic ,  Cong Nguyen

IPC分类号： H03F1/26

CPC分类号： H03F3/26 ,  H03F1/26 ,  H03F1/32 ,  H03F3/45475 ,  H03F2200/534 ,  H03F2200/541

摘要： A method for improving or eliminating second harmonic and higher even order distortion terms and balance of fundamental signals in push-pull amplifiers and other differential circuits is disclosed. A common-mode (CM) signal is generated as a sum of two complementary (out of phase) signals in a summation network. The CM signal contains even order distortion terms only, while the fundamental signal and odd order distortion terms are canceled, thus providing a correction signal that can be used to reduce even order distortion terms, by injecting the correction signal, with proper phase and amplitude, into suitable circuit nodes. For feedback, the correction signal is injected at the input of the amplifiers, for feed-forward, it's injected at the output. The correction signal can be amplified to higher levels and injected into the circuit, without affecting gain of fundamental signals; and can result in significant even order distortion improvements, and improved balance of complementary fundamental signals.

公开(公告)号：US5032807A

公开(公告)日：1991-07-16

申请号：US377598

申请日：1989-07-10

申请人： Branislav Petrovic

发明人： Branislav Petrovic

IPC分类号： H03H7/01

CPC分类号： H03H7/0115

摘要： A notch filter comprises a helical transmission line enclosed in a conductive activity, and a high Q capacitor coupled to form a series-resonant circuit. The capacitor is fabricated from a portion of coaxial cable having an outer conductor forming a first plate of the capacitor and an inner conductor forming the second plate of the capacitor. The notch filter is particularly suited for rejecting terrestrial interference in a C-band tuner at an intermediate frequency of about 400 MHz.

摘要翻译： 陷波滤波器包括封装在导电活动中的螺旋传输线和耦合以形成串联谐振电路的高Q电容器。 电容器由同轴电缆的一部分制成，具有形成电容器的第一板的外部导体和形成电容器的第二板的内部导体。 陷波滤波器特别适用于在大约400MHz的中频处拒绝C波段调谐器中的地面干扰。

公开(公告)号：US4168064A

公开(公告)日：1979-09-18

申请号：US906239

申请日：1978-05-15

申请人： Branislav Petrovic

发明人： Branislav Petrovic

IPC分类号： A63B59/00 ,  G10D13/02

CPC分类号： G10D13/02 ,  A63B60/40

摘要： There is disclosed a hand held percussion toy comprising a pair of substantially parallel surfaces, each surface having a perimeter edge, the pair of substantially parallel surfaces being joined together by a third surface connected between the perimeter edges of the pair of parallel surfaces to form a sealed enclosure having an interior volume, the third surface having a recess therein extending into the interior volume, the recess being shaped to receive a thumb or a finger of a person for holding the percussion toy while maintaining the seal of the sealed enclosure whereby a drum-like structure is formed which produces a resonant tone when struck by another object.

摘要翻译： 公开了一种手持式打击乐玩具，其包括一对基本上平行的表面，每个表面具有周边边缘，所述一对基本平行的表面通过连接在该对平行表面的周边边缘之间的第三表面连接在一起，以形成 密封的外壳具有内部容积，所述第三表面在其中延伸到所述内部容积中，所述凹部被成形为接收人的拇指或手指以保持所述打击乐器，同时保持所述密封外壳的密封，由此鼓 形成当由另一物体撞击时产生共振色调的结构。

公开(公告)号：US08981980B2

公开(公告)日：2015-03-17

申请号：US13557067

申请日：2012-07-24

申请人： Branislav Petrovic

发明人： Branislav Petrovic

IPC分类号： H03M1/66 ,  H03M1/06 ,  H03M1/74 ,  H04L27/34 ,  H03M1/12 ,  H04L27/38 ,  H04B1/713 ,  H03F1/32 ,  H04B17/00

CPC分类号： H03M1/0614 ,  H03F1/3247 ,  H03M1/12 ,  H03M1/66 ,  H03M1/747 ,  H04B1/713 ,  H04B17/19 ,  H04L27/34 ,  H04L27/38

摘要： Systems and methods for providing a mechanism by which digital signals can be converted to analog signals with an efficient structure that reduces the number of filters required by providing a mechanism for cancelling images that would otherwise be generated. By adjusting three parameters in the system, a selection can be made as to whether to generate upper sidebands, lower sidebands and in which direction the envelope of the output from the system will be skewed.

摘要翻译： 用于提供机制的系统和方法，通过该机制可以将数字信号转换为具有有效结构的模拟信号，从而通过提供用于抵消否则将产生的图像的机构来减少所需的滤波器数量。 通过调整系统中的三个参数，可以选择是否生成上边带，下边带以及系统输出的包络线在哪个方向上偏移。

公开(公告)号：US08831015B2

公开(公告)日：2014-09-09

申请号：US13213370

申请日：2011-08-19

申请人： Branislav Petrovic ,  Changwen Liu ,  Zong Liang Wu

发明人： Branislav Petrovic ,  Changwen Liu ,  Zong Liang Wu

IPC分类号： H04L29/06 ,  H04W74/04 ,  H04L12/28 ,  H04W28/04 ,  H04W84/22

CPC分类号： H04W74/04 ,  H04L12/2801 ,  H04L12/2803 ,  H04W84/22

摘要： Systems, methods, and apparatus for sharing resources for a network bridge configured to perform communications on a MoCA network and a WiFi network using the shared resources. The method includes: receiving a MAP from a MoCA NC and checking the MAP to determine whether the MoCA NC has scheduled MoCA communications in an upcoming MAP cycle; in instances where the MAP indicates that the MoCA NC has scheduled MoCA communications in an upcoming MAP cycle, configuring the shared network bridge resources for MoCA communications: in instances where the MAP indicates that the MoCA NC has not scheduled any MoCA communications in an upcoming MAP cycle, configuring the shared network bridge resources for WiFi communications; at the conclusion of a WiFi communication period, sending a CTS to the WiFi devices an the network and configuring the shared network bridge resources for WiFi communications.

摘要翻译： 用于为配置为使用共享资源在MoCA网络和WiFi网络上执行通信的网桥共享资源的系统，方法和装置。 该方法包括：从MoCA NC接收MAP并检查MAP以确定MoCA NC是否在即将到来的MAP周期中调度了MoCA通信; 在MAP表示MoCA NC在即将到来的MAP周期中调度MoCA通信的情况下，配置用于MoCA通信的共享网桥资源：在MAP指示MoCA NC未在即将到来的MAP中调度任何MoCA通信的情况下 循环，配置WiFi通信的共享网桥资源; 在WiFi通信周期结束时，向WiFi设备发送CTS到网络并配置用于WiFi通信的共享网桥资源。

公开(公告)号：US08792565B2

公开(公告)日：2014-07-29

申请号：US13325418

申请日：2011-12-14

申请人： Branislav Petrovic

发明人： Branislav Petrovic

IPC分类号： H04B3/00

CPC分类号： H04B3/00 ,  H04N7/104

摘要： Systems and methods are described for providing a throughput of 10 Gbps or more in a coaxial cable network and which operate at high frequencies above the existing services on home coax in the range 2 GHz to 10 GHz, or more. The network uses a wide signal bandwidth, in the range, for example, of 8 GHz. Operating above the CATV band and satellite services, the network coexists with these services without mutual interference. The system could be used in networking systems, such as MoCA 3 and Access systems. This is achieved by using a splitter with a low loss and low isolation in the 2-10 GHz range at the point-of entry (POE) of the network signal. Alternatively, an active node to provide a signal booster or a repeater function at the point-of-entry (POE) can be used.

摘要翻译： 描述了用于在同轴电缆网络中提供10Gbps或更高的吞吐量的系统和方法，并且其工作频率高于2GHz至10GHz或更高的家庭同轴电缆上的现有服务。 该网络使用宽的信号带宽，范围为例如8GHz。 在CATV频段和卫星业务之上，网络与这些业务共存，不会相互干扰。 该系统可用于网络系统，如MoCA 3和Access系统。 这通过在网络信号的入口点（POE）处使用具有低损耗和低隔离度的分离器来实现，其在2-10GHz范围内。 或者，可以使用在入口点（POE）处提供信号增强器或中继器功能的活动节点。

公开(公告)号：US20140035699A1

公开(公告)日：2014-02-06

申请号：US13566508

申请日：2012-08-03

申请人： Younghuang Zeng ,  Branislav Petrovic

发明人： Younghuang Zeng ,  Branislav Petrovic

IPC分类号： H03H7/46

CPC分类号： H04B1/0057

摘要： A switchable filter and diplexer circuit includes a plurality of bandpass filters having passbands for the frequency bands in which communication across a communication channel is desired and a plurality of diplexers, the diplexers having a plurality of passbands. A plurality of switches are provided to select one of the bandpass filters or diplexers from among the plurality of bandpass filters and diplexers for communication on a communication channel. An additional switching capability is provided to select a first passband of a given diplexer when a second passband of that diplexer is selected by the plurality of switches.

摘要翻译： 可切换滤波器和双工器电路包括多个带通滤波器，其具有用于期望通信信道上的通信的频带的通带和多个双工器，所述双工器具有多个通带。 提供多个开关以从多个带通滤波器和双工器中选择一个带通滤波器或双工器，用于在通信信道上进行通信。 当多路开关选择该双工器的第二通带时，提供另外的切换能力来选择给定双工器的第一通带。

公开(公告)号：US08412759B2

公开(公告)日：2013-04-02

申请号：US12163787

申请日：2008-06-27

申请人： Branislav Petrovic

发明人： Branislav Petrovic

IPC分类号： G06F17/10

CPC分类号： H04B1/036 ,  H04B1/109

摘要： Methods and systems for signal filtering in electronic devices are provided. More particularly, methods and systems for filtering of radio frequency (RF) signals are provided. A filter circuit may comprise a down-converter, a filter, coupled to the down-converter and configured to filter the down-converted signal, and an up-converter, coupled to the filter. A filter circuit may also comprise a combining circuit, coupled to the up-converter and configured to combine the filtered, up-converted signal and the input signal.

摘要翻译： 提供了电子设备中信号滤波的方法和系统。 更具体地，提供了用于过滤射频（RF）信号的方法和系统。 滤波器电路可以包括耦合到下变频器并被配置为滤波下变频信号的下变换器，滤波器和耦合到滤波器的上变频器。 滤波器电路还可以包括组合电路，其耦合到上变频器并且被配置为组合经滤波的上变频信号和输入信号。

公开(公告)号：US08345798B2

公开(公告)日：2013-01-01

申请号：US12414892

申请日：2009-03-31

申请人： Branislav Petrovic ,  Itzhak Gurantz ,  Keith Bargroff

发明人： Branislav Petrovic ,  Itzhak Gurantz ,  Keith Bargroff

IPC分类号： H03K9/00

CPC分类号： H04N7/20 ,  H03D3/007 ,  H04H20/30 ,  H04H20/63 ,  H04H20/77 ,  H04H20/78 ,  H04H40/90

摘要： A channel stacking system includes first and second downconverting stages, first and second analog to digital converters, and a digital switching and signal processor. The first downconverting stage includes a first downconverter circuit having an input for receiving a first RF input signal which includes a multitude of first channels. The first downconverter circuit frequency downconverts the first RF input signal to a first IF signal which includes the multitude of first channels. The first analog-to-digital converter converts the first IF signal to a first digital IF signal. The second downconverter stage includes a second downconverter circuit having an input for receiving a second RF input signal which includes a multitude of second channels. The second downconverter circuit frequency downconverts the second RF input signal to a second IF signal including said multitude of second channels.