Network Component (e.g., Filter, Tap, Splitter, Amplifier, Repeater, Etc.) Patents (Class 725/127)
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Patent number: 8006277Abstract: A method for providing power to a boost device in a high-speed cable connected between a transmitting data source device and a receiving data sink device is described. The method comprises receiving differential data signals from the data source device in a differential input circuit of the boost device; boosting at least one of the received differential data signals into a boosted differential data signal; transmitting the boosted differential data signal from a differential output circuit of the boost device to the receiving data sink device; and obtaining power to operate at least some of the circuitry of the boost device from the data sink device through its connection with the differential output circuit, for example, providing at least some of the power to operate the processing block. A corresponding high-speed cable is also described.Type: GrantFiled: March 2, 2011Date of Patent: August 23, 2011Assignee: Redmere Technology Ltd.Inventors: Aidan Gerard Keady, John Anthony Keane, Judith Ann Rea, Benjamin Griffin, John Martin Horan
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Patent number: 8001579Abstract: A downstream bandwidth output level and/or output level tilt compensation device that can be inserted into a signal transmission line of a CATV system on a premise of a user. The device includes a tuner that identifies low and high band signal channels, and a channel analyzer that determines a format of each of those channels. A signal measurement measures low and high band signal strengths. An offset circuit adds or subtracts an offset value to the low and/or high band channel signal strengths depending on whether the respective channel is analog or digital. A microprocessor compares the low and high band signal strengths, including any offset values, to a predetermined signal strength loss curve. A variable output level compensation device and a variable slope adjusting circuit are provided to amplify and adjust the gain slope of the downstream bandwidth.Type: GrantFiled: October 16, 2008Date of Patent: August 16, 2011Assignee: John Mezzalingua Associates, Inc.Inventors: Thomas A. Olson, David Kelma, Joseph Lai, Raymond Palinkas
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Publication number: 20110197250Abstract: A CATV filter assembled inside a housing has the housing marked by a laser system with indicia relating to specific characteristics of the filter.Type: ApplicationFiled: April 18, 2011Publication date: August 11, 2011Applicant: JOHN MEZZALINGUA ASSOCIATES, INC.Inventor: David Rahner
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Patent number: 7995920Abstract: Optical network terminal (ONT) power failure management. A system for permitting a customer of a telecommunication company, for whom fiber to the premises (FTTP) has been installed, to control operating features associated with operation of a battery backup unit (BBU) which is used, during power failure, for powering the ONT associated with the FTTP installation and the customer's telephone(s). The controlling of these features includes utilization of signal-controlled switches, which are manually over-rideable by the customer, thereby providing the desired operating feature control.Type: GrantFiled: June 22, 2010Date of Patent: August 9, 2011Assignee: Verizon Patent and Licensing Inc.Inventor: Stanley J. Wynman
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Publication number: 20110191814Abstract: A passive cable adaptor for connecting a data source device with a display device is described. The adaptor has a packet-based interface connector at one end, the connector having a positive main link pin, a negative main link pin, a positive auxiliary channel pin, and a negative auxiliary channel pin. Also at the same end is a serial interface connector, such as a serial interface connector. At the other end is an upgraded serial interface connector (e.g., enhanced serial interface) connector having high-speed transmission pins, high-speed receiving pins, and a ground pin, wherein multimedia content is transmitted over the cable adaptor and electrical power is supplied over the cable adaptor simultaneously.Type: ApplicationFiled: August 9, 2010Publication date: August 4, 2011Applicant: STMICROELECTRONICS, INC.Inventor: Osamu Kobayashi
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Publication number: 20110167442Abstract: A system includes a signal-processing engine configured to generate a video data stream including a plurality of data packets based on a received video signal. A first subset of the plurality of data packets is usable to generate a video display of content having a first quality and all of the plurality of data packets are usable to generate a second video display of the content having a second quality. The second quality is higher than the first quality. The signal-processing engine is further configured to distinguish the first subset of the plurality of data packets from other data packets of the plurality of data packets by applying a tag to particular data packets to form tagged data packets. The system also includes a transmitter coupled to the signal-processing engine and configured to transmit the plurality of data packets of the video data stream.Type: ApplicationFiled: February 7, 2011Publication date: July 7, 2011Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.Inventors: Ahmad C. Ansari, Dinesh Nadarajah, David Bruce Hartman
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Publication number: 20110162030Abstract: According to one embodiment, a cable includes a first plug and a second plug, a voltage application line which is formed by a metal wire connected between the first plug and the second plug, and to which a voltage is applied from one of the first plug and the second plug, a plurality of optical fibers which are connected between the first plug and the second plug, and transmit a video signal, and a controller connected to the voltage application line, and configured to detect a transmission direction of the video signal between the first plug and the second plug by sensing a change in voltage of the voltage application line and perform processing in accordance with the detected transmission direction.Type: ApplicationFiled: August 20, 2010Publication date: June 30, 2011Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Takashi DOI
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Publication number: 20110154428Abstract: A method for providing power to a boost device in a high-speed cable connected between a transmitting data source device and a receiving data sink device is described. The method comprises receiving differential data signals from the data source device in a differential input circuit of the boost device; boosting at least one of the received differential data signals into a boosted differential data signal; transmitting the boosted differential data signal from a differential output circuit of the boost device to the receiving data sink device; and obtaining power to operate at least some of the circuitry of the boost device from the data sink device through its connection with the differential output circuit, for example, providing at least some of the power to operate the processing block. A corresponding high-speed cable is also described.Type: ApplicationFiled: March 2, 2011Publication date: June 23, 2011Inventors: Aidan Gerard Keady, John Anthony Keane, Judith Ann Rea, Benjamin Griffin, John Martin Horan
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Publication number: 20110145882Abstract: A multi-channel digital TV transmission system and method are provided. In the multi-channel digital TV transmission system and method, a single auxiliary transmitter may be configured to be switched with respect to a plurality of main transmitters and thus, it is possible to provide a broadcasting service without interruption even when an fault occurs in a main transmitter among the plurality of main transmitters, to reduce costs of a multi-channel digital TV transmission system, and to ensure a wide facility space.Type: ApplicationFiled: November 16, 2010Publication date: June 16, 2011Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sung Woong Choi, Heon Jin Hong
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Publication number: 20110138436Abstract: Provided is a device for use with a headend, a household and an amplifier. The headend is able to provide signals within a high-frequency band fH. The household is able to provide signals within a low-frequency band fL, and to provide signals within a super-high-frequency band fR, where fL<fH<fR. The device includes a splitter, a diplexer and a combiner. The splitter is arranged to receive the signals within the high-frequency band fH and to split the signals within the high-frequency band fH into a first signal portion within the high-frequency band fH and a second signal portion within the high-frequency band fH. The diplexer is operable to pass the second signal portion within the high-frequency band fH to the household, to pass the signals within the low-frequency band fL to the splitter and to pass the signals within the super-high-frequency band fR.Type: ApplicationFiled: December 9, 2009Publication date: June 9, 2011Applicant: GENERAL INSTRUMENT CORPORATIONInventors: George S. Karpati, Robert L. Howald
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Publication number: 20110131617Abstract: A residential gateway includes an Internet Protocol television (IPTV) network communication port and a first isolation transformer circuit. The IPTV network communication port is configured to receive a signal from an ITPV network. The first isolation transformer circuit is in communication with the IPTV network communication port. The isolation transformer is configured to receive the signal from the IPTV network communication port, and to transform a ground of the signal to float at a ground potential of a power source of the residential gateway.Type: ApplicationFiled: November 30, 2009Publication date: June 2, 2011Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.Inventor: Gregory D. Olson
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Patent number: 7949749Abstract: An improved interactive network system is provided that allows the Network Operator to control the transfer of information to and from the network end users, the system preferably using triggers or markers embedded within the programming broadcast to users via the network. As a consequence of this system, the Network Operator is able to efficiently garner revenues from third parties transacting business over the network and to control the look and feel of programming offered to network users. Additionally the system can be used as a means of limiting network access, filtering programming, providing on-screen graphics or audible signals for particular programming types or providers, bookmarking programming, profiling network users, targeting advertising, and simplifying network transactions.Type: GrantFiled: August 11, 2008Date of Patent: May 24, 2011Assignee: Thomson LicensingInventors: Nizar Allibhoy, L. Dane Elliott, Joaquin Fernandez-Silva, Stephen M. Johnson
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Patent number: 7945166Abstract: A network interface apparatus comprises a bidirectional optical signal port, an optical diplexer connected to the bidirectional optical signal port, a first RF signal port (bidirectional), a second RF signal port, a first RF diplexer, and an RF splitter. The RF diplexer transmits a first received RF input signal from the first RF signal port to the optical diplexer to modulate an optical output signal transmitted by the optical diplexer to the optical signal port. The RF splitter receives from the optical diplexer an RF signal derived from an RF-modulated optical input signal received from the bidirectional optical signal port, transmits a first portion of the derived RF signal as a first RF output signal to the first RF signal port through the first RF diplexer, and transmits a second portion of the derived RF signal as a second RF output signal to the second RF signal port.Type: GrantFiled: December 7, 2007Date of Patent: May 17, 2011Assignee: HOYA Corporation USAInventor: Henry A. Blauvelt
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Patent number: 7937739Abstract: Embodiments of the invention provide a method, device and/or system for communicating over a wideband distribution network. The device may include, for example, a downstream conversion module for converting a legacy downstream electrical signal of a legacy downstream frequency band into an extended downstream optical signal of an extended downstream frequency band; and/or an upstream conversion module for converting an extended upstream optical signal of an extended upstream frequency band into a legacy upstream electrical signal of a legacy upstream frequency band. Other embodiments are described and claimed.Type: GrantFiled: March 29, 2005Date of Patent: May 3, 2011Assignee: Xtend NetworksInventors: Ron Shani, Yeshayahu Strull, Semion Kofman
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Publication number: 20110099601Abstract: An addressable optical network interface unit includes an optical input and a radio frequency output. The unit also includes an optical-to-electrical conversion circuit that converts optical signals received at the optical input into radio frequency signals, a directional coupler that is coupled to an output of the optical-to-electrical conversion circuit and a radio frequency receiver that is coupled to a first output of the directional coupler. The radio frequency receiver receives radio frequency signals input through the optical input. The unit also includes a controller that is coupled to the radio frequency receiver, and a filter circuit that is coupled to a second output of the directional coupler. The filter circuit includes multiple signal paths that filter out signals in different frequency ranges. Switches are provided that select one of the signal paths through the filter circuit. These switches are controlled in response to data contained in the radio frequency signal.Type: ApplicationFiled: October 22, 2010Publication date: April 28, 2011Inventors: Robert Ryan Riggsby, Neil Phillips, Mark Vogel
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Publication number: 20110099600Abstract: In general, in one aspect, the disclosure describes a resonance restricting material in communication with a bypass line of a cable television tap. The bypass line generates resonances at a defined frequency in response to RF parameters in the tap and the resonances increase insertion losses at the defined frequency and precludes bandwidth of the tap being increased above the defined frequency. The resonance restricting material may attenuate the resonances generated by the bypass line at the defined frequency (e.g., approximately 1.2 GHz) and reduce insertion losses at the defined frequency and enable the bandwidth of the tap to be increased (e.g., from 1.0 GHz to 1.5 GHz).Type: ApplicationFiled: October 26, 2009Publication date: April 28, 2011Applicant: GENERAL INSTRUMENT CORPORATIONInventors: Rudolph J. Menna, Philip Miguelez
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Patent number: 7917931Abstract: An apparatus and method are presented to allow the extension of a DOCSIS cable modem service over a wireless link. According to the invention a wireless hub transceiver is connected to a distribution coax cable of a DOCSIS based system. The downstream data are transferred over a wireless link to a remote subscriber radio frequency (RF) unit connected to a cable modem that provides the downstream data to the subscriber. Similarly, upstream data are sent from the subscriber cable modem over the wireless link to the wireless hub transceiver where such data are inserted back to the distribution coax cable.Type: GrantFiled: September 16, 2009Date of Patent: March 29, 2011Assignee: Arcowv Wireless LLCInventors: James Bertonis, Terrence R. Nash, Alfred F. Melzig
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Publication number: 20110072472Abstract: A cable television (CATV) entry adapter interfaces to a CATV network and serves as a hub in an in-home network for passively communicating multimedia content or information from the CATV network and between subscriber devices connected to the ports of the CATV entry adapter, using CATV signals in a CATV frequency band and network signals in a different in-home network band.Type: ApplicationFiled: September 21, 2009Publication date: March 24, 2011Inventors: Chad T. Wells, John M. Egan, JR.
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Patent number: 7908634Abstract: A High-Definition Multimedia Interface (HDMI) cable carries high speed encoded data which are transmitted differentially over data channels, along with a clock. High-frequency loss and differential skew within a differential signal may be compensated by analog circuits embedded in the cable. These embedded circuits are tuned at production for best performance by observing the quality of the recovered analog signal. The embedded circuits are powered by a combination of power sources, both carried within the cable, and harvested from the high-speed signals themselves.Type: GrantFiled: July 30, 2009Date of Patent: March 15, 2011Assignee: Redmere Technology Ltd.Inventors: Aidan Gerard Keady, John Anthony Keane, Judith Ann Rea, Benjamin Griffin, John Martin Horan
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Patent number: 7904932Abstract: A novel node device enables transmission of a wideband signal, in compliance with various acceptable transmission standards and protocols. The signal consists of the legacy spectrum of about 5-860 MHz as well as a new downstream spectrum of about 1000-2000 MHz and a new upstream spectrum of about 2000-3000 MHz or about 930-1100 MHz. The novel device enables transfer of additional data in the upstream direction employing multiple upstream bands without making substantial investment in upstream physical node splitting thus providing networking services to residential subscribers, as well as to small and medium-sized businesses (SMB), which may operate under existing DOCSIS protocols and controlled by standard DOCSIS routers (CMTSs).Type: GrantFiled: July 2, 2008Date of Patent: March 8, 2011Assignee: XTEND Networks Ltd.Inventors: Oleg Dounaevski, Hillel Weinstein, Yeshayahu Strull
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Publication number: 20110055875Abstract: A method and apparatus for providing WiMAX coverage via a wired network are provided. For example, systems and methods are discussed in which a Cable TV (“CATV”) network, Direct Broadcasting Satellite (“DBS”) and/or Passive Optical Network (PON) are used in order to deliver the native WiMAX signals into the buildings or an area in which WiMAX coverage is desired, where a small Consumer Premise Device is used to transmit and receive the signals to and from the WiMAX devices.Type: ApplicationFiled: June 23, 2008Publication date: March 3, 2011Applicant: CLARITON NETWORKS, LTD.Inventor: Mordechai Zussman
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Publication number: 20110047583Abstract: An integrated wireless MobileMedia system is provided. One embodiment includes a wireless media system for distributing media content, the wireless media system including; a base unit that includes: (1) a WWAN modem for receiving the media content over a WWAN network; (2) a router in communication with the WWAN modem; and (3) a transmitter for wirelessly transmitting the media content to one or more wireless receivers, wherein a first wireless receiver is configured to wirelessly receive the media content from the transmitter and push the media content to a video device. In some embodiments, the wireless media system further includes a TV tuner device for receiving live video content.Type: ApplicationFiled: February 17, 2010Publication date: February 24, 2011Applicant: INTERNET CONNECTIVITY GROUP, INC.Inventors: Kevin B. Howard, Kurtis S. Van Horn, JR., Gordon J. Davidson
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Patent number: 7877013Abstract: A wavelength division multiplexing based passive optical network is disclosed. The network includes an optical line terminal; a power optical splitter connecting to the optical line terminal by an optical fiber; and several optical network units. Each of the optical network units connects to the power optical splitter by each of other optical fibers by a random process.Type: GrantFiled: February 26, 2007Date of Patent: January 25, 2011Assignee: Futurewei Technologies, Inc.Inventor: Frank J. Effenberger
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Patent number: 7873980Abstract: A High Definition Multimedia Interface (HDMI) cable carries high speed encoded data which are transmitted differentially over data channels, along with a clock. A Mobile High-Definition Link (MHL) cable carries high speed data which are multiplexed to achieve smaller connectors with fewer pins. A MHL-to-HDMI cable is proposed which includes an embedded MHL to HDMI format conversion device for demultiplexing the received MHL-formatted signal and outputting an HDMI-formatted signal. The embedded device is powered by a combination of power sources, the power being harvested from the high-speed HDMI signals themselves.Type: GrantFiled: June 9, 2010Date of Patent: January 18, 2011Assignee: Redmere Technology Ltd.Inventors: John Martin Horan, Gerard David Guthrie
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Publication number: 20110010749Abstract: A filter for use in a coaxial cable network includes a printed circuit board having first and second opposed major surfaces, and first and second opposing sides. The opposed major surfaces are substantially parallel to a single plane, and are bisected by a longitudinal axis. The first and second opposing sides are substantially parallel to the longitudinal axis. The filter further includes an input terminal and an output terminal connected to the printed circuit board. The input terminal and the output terminal have an axis extending substantially parallel to the longitudinal axis. A signal path is disposed on the printed circuit board and extends from the input terminal toward the output terminal. The filter further includes a plurality of resonator elements fabricated upon the first opposed major surface. In one embodiment, the inductor elements are arranged in series along the signal path defining a footprint of less than 540 square millimeters.Type: ApplicationFiled: July 10, 2009Publication date: January 13, 2011Applicant: John Mezzalingua Associates, Inc.Inventor: Erdogan Alkan
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Patent number: 7868704Abstract: A broadband integrated television receiver for receiving a standard antenna or cable input and outputting an analog composite video signal and composite audio signal is disclosed. The receiver employs an up-conversion mixer and a down-conversion mixer in series to produce an IF signal. An IF filter between the mixers performs coarse channel selection. The down-conversion mixer may be an image rejection mixer to provide additional filtering. The received RF television signals are converted to a standard 45.75 MHz IF signal for processing on-chip by additional circuitry.Type: GrantFiled: May 12, 2009Date of Patent: January 11, 2011Assignee: Microtune (Texas), Inc.Inventors: S. Vincent Birleson, Albert H. Taddiken, Kenneth W. Clayton
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Patent number: 7860393Abstract: A system and method for simultaneous delivery of a plurality of independent blocks of 500 MHz digital broadcast television services, stacking a plurality of RF blocks on a plurality of spectrally sliced WDM optical bands.Type: GrantFiled: November 24, 2008Date of Patent: December 28, 2010Assignee: AT&T Intellectual Property I, LPInventors: Martin Birk, Patrick P. Iannone, Kenneth C. Reichmann, Nicholas J. Frigo, Cedric F. Lam
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Patent number: 7861277Abstract: An HDMI cable carries high speed encoded data which are transmitted differentially over data channels, along with a clock. High-frequency loss and differential skew within a differential signal may be compensated by analog circuits embedded in the cable. These embedded circuits are tuned at production for best performance by observing the quality of the recovered analog signal. The embedded circuits are powered by a combination of power sources, both carried within the cable, and harvested from the high-speed signals themselves.Type: GrantFiled: July 18, 2007Date of Patent: December 28, 2010Assignee: Redmere Technology Ltd.Inventors: Aidan Gerard Keady, John Anthony Keane, Judith Ann Rea, Benjamin Griffin, John Martin Horan
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Patent number: 7861271Abstract: An apparatus comprising a transmodulator unit. The transmodulator unit generally comprises (i) a first input configured to receive a baseband video signal, (ii) a second input configured to receive a first encoded data signal and (iii) an output configured to present a second encoded data signal. The second encoded data signal is generated in response to the first encoded data signal and the baseband video signal. The first encoded data signal comprises an advanced data signal. The second encoded data signal comprises a legacy data signal.Type: GrantFiled: December 5, 2003Date of Patent: December 28, 2010Assignee: LSI CorporationInventor: Ion Coman
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Patent number: 7848951Abstract: A method and apparatus for providing specifically targeted advertisements and preventing various forms of advertising fraud in electronic books.Type: GrantFiled: August 11, 2006Date of Patent: December 7, 2010Assignee: Wowio, Inc.Inventors: William Lidwell, Edward L. Novak
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Publication number: 20100306814Abstract: The present invention is an integrated set-top box having daisy-chaining capability. The set-top box includes a down-stream path having a tuner and a digital receiver portion and an up-stream path having a power amplifier. In one embodiment, the tuner, digital receiver, and power amplifier can all be disposed on a common substrate. In another embodiment, the tuner can be disposed on a first substrate, and the digital receiver and the power amplifier can be disposed on a second substrate. The set-top box includes a daisy-chain buffer having an input coupled to an input of the tuner and having an output coupled to an input of another receiving entity such as another set-top box, tuner, cable, etc., where the daisy-chain buffer is configured to provide a signal to drive the receiving entity.Type: ApplicationFiled: July 16, 2009Publication date: December 2, 2010Applicant: Broadcom CorporationInventors: Francesco GATTA, Leonard Dauphinee, Ramon Gomez, Joseph L. Laskowski
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Patent number: 7831147Abstract: This invention provides a new architecture for a communication system between head-ends and end-users which expands bandwidth and reliability of the communication system. A mux-node receives communication signals from a head-end and forwards the received communication signals to one or more mini-fiber nodes. The connection to the head-end is via a small number of optical fibers and the connections to each of the mini-fiber nodes may be via one or more optical fibers that may provide full duplex communication. The head-end may communicate with the mux-node using digital or digital and analog signals. The mini-fiber nodes may combine the signals received from the head-end with loop-back signals used for local media access control prior to forwarding the signals to the end-users. Upstream data are received by the mini-fiber nodes and transmitted to the mux-node.Type: GrantFiled: November 10, 2008Date of Patent: November 9, 2010Assignee: AT&T Intellectual Property II, L.P.Inventors: Charles D. Combs, Thomas Edward Darcie, Bhavesh N. Desai, Alan H. Gnauck, Xiaolin Lu, Esteban Sandino, Oleh J. Sniezko, Anthony G. Werner, Sheryl Leigh Woodward
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Patent number: 7831145Abstract: The present disclosure provides a passive optical network (PON) system and a method for protecting the service of the system for service recovery and fault locating in case of a failure of the network, wherein the PON system comprises an optical line terminal (OLT), an optical distribution network (ODN) and an optical network terminal (ONT) equipment protection group comprising a plurality of ONT equipment groups, each of which is connected to at least one of other ONT equipment groups within the ONT equipment protection group for the mutual protection relationship. The PON system of the present disclosure does not require equipment and link redundancy for backup, contributes to reduced cost and improved utilization of resources, and provides a means for diagnosing any faults of the links and equipment in the network.Type: GrantFiled: December 15, 2006Date of Patent: November 9, 2010Assignee: Huawei Technologies Co., Ltd.Inventors: Hai Gao, Gang Zheng
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Publication number: 20100281511Abstract: A multimedia system and associated control method is provided. The multimedia system includes a remote control, a display device and a multimedia signal generator. A control method of the multimedia system includes steps of transmitting a remote control signal to the display device by the remote control, transmitting a local control signal associated with the remote control signal to the multimedia signal generator, generating an operation command by the multimedia signal generator in response to the local control signal, and executing the operation command by the multimedia signal generator.Type: ApplicationFiled: March 30, 2010Publication date: November 4, 2010Applicant: MStar Semiconductor, Inc.Inventor: Hung-Chi Huang
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Patent number: 7825932Abstract: A repeater comprises an EDID memory to store a control data and a memory control unit. The memory control unit is configured to make access to the EDID memory to read the control data therefrom, store the read control data into the EDID memory and, when access is made to the EDID memory by the set-top box, transfer the control data stored in the EDID memory to the set-top box. In this case, the memory control unit outputs an inhibiting signal to a set-top box to inhibit it from making access to the EDID memory until the completion of an operation of storing the control data from the EDID memory in the set-top box into the EDID memory in the repeater.Type: GrantFiled: April 30, 2009Date of Patent: November 2, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Masahiko Mawatari, Yutaka Kawada
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Patent number: 7818772Abstract: A system and method for improving quality of video communication includes a packets generator logical unit (PGU) coupled to a video source for receiving a compressed video stream and generating primary and secondary data chunks for transmittal to one or more destination nodes via a network. Each primary data chunk is associated with a secondary data chunk, and each secondary data chunk includes video data that covers a same portion of a video frame as video data included in each associated primary data chunk. The PGU encapsulates the primary and secondary data chunks in associated primary-secondary packet pairs composed of MB data fields, picture header fields, GOB and slice start header fields, and MB header fields, among others. The destination nodes process the secondary packets received via the network if the primary packets are damaged or lost in transmission.Type: GrantFiled: July 18, 2002Date of Patent: October 19, 2010Assignee: Polycom, Inc.Inventors: Ilan Yona, Moshe Elbaz
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Publication number: 20100257574Abstract: This invention relates to a multimedia network splitter in which a plurality of connection terminals are provided at the outer edge of the housing and a circuit board is provided in the interior of the housing. Corresponding to the connection terminals on the housing, a plurality of radially spaced attenuation circuits are provided on the circuit board. Each attenuation circuit is composed of a first resistor and a second resistor in parallel connection together, and each attenuation circuit is suitably matched on the circuit board. With this structure, after the connection terminals are connected with a plurality of televisions or a variety of digital multimedia equipments by coaxial cables, better flatness of frequency bandwidth and wider extended bandwidth can be obtained during transmission of various signals in upload or download condition such that the signals can be evenly distributed among the networks linked between the terminals in use. Furthermore, the insertion loss, i.e.Type: ApplicationFiled: April 1, 2009Publication date: October 7, 2010Inventors: Chun-Hsien Pan, Hsin-Lung Huang
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Publication number: 20100251322Abstract: An upstream bandwidth conditioning device that can be inserted into a signal transmission line of a CATV system on a premise of a user includes a main signal path and a filter array including a plurality of discrete signal filters coupled to the main signal path. Each of the signal filters is configured to reduce a signal level of at least one frequency portion of an upstream bandwidth. The device further includes a controller configured to select between a plurality of states. In at least two of the states at least one of the signal filters is selected such that a signal level of a lower frequency portion of the upstream bandwidth and a signal level of an higher frequency portion of the upstream bandwidth are reduced by a greater amount than a signal level of an intermediate frequency portion, which includes frequencies arranged between the lower frequency portion and the higher frequency portion.Type: ApplicationFiled: August 4, 2009Publication date: September 30, 2010Inventors: Raymond Palinkas, Erdogan Alkan
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Publication number: 20100251324Abstract: There is provided a terminate or permit device that includes an internal circuitry, which discriminates between noise and non-noise transmissions. In one embodiment, the internal circuitry comprises a switch and termination unit (“STU”) with a signal path that is used to terminate and/or permit the upstream bandwidth based on the presence of non-noise transmissions. The internal circuitry also comprises a signal processing unit (“SPU”) with a processing circuit, which is configured to identify the non-noise transmissions from the upstream bandwidth, and to cause the STU to permit the upstream bandwidth based on the presence of the non-noise transmissions.Type: ApplicationFiled: September 25, 2009Publication date: September 30, 2010Inventor: Erdogan Alkan
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Publication number: 20100251321Abstract: An upstream bandwidth conditioning device is provided that can be inserted into a signal transmission line of a CATV system on a premise of a user. The device includes a tunable low pass filter, a tunable high pass filter connected in series with the tunable low pass filter, and at least one voltage control unit. The voltage control unit is configured to adjust each of the tunable low pass filter and the tunable high pass filter between at least a first intermediate frequency range having a first width and a second intermediate frequency range having a second width. The first width differs in size from the second width.Type: ApplicationFiled: August 4, 2009Publication date: September 30, 2010Inventors: Raymond Palinkas, Erdogan Alkan
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Publication number: 20100251323Abstract: An upstream bandwidth conditioning device that can be inserted into a signal transmission line of a CATV system in or proximate to a premise of a user includes a main signal path divided into a forward path and a return path, the return path being divided into supplier side portion and a user side portion. The device further includes a supplier side termination device selectively connected to the supplier side portion by a supplier side termination switch, and a user side termination device selectively connected to the user side portion by a user side termination switch. A signal amplifier is selectively connected to the supplier side portion and the user side portion by at least one amplifier switch, and a switch controller is configured to actuate each of the supplier side termination switch, the user side termination switch, and the amplifier switch from a first position to a second position.Type: ApplicationFiled: August 4, 2009Publication date: September 30, 2010Inventor: David H. Jackson
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Patent number: 7802287Abstract: A hybrid fiber coax (HFC) network management method and system for use in a broadband network having a hybrid fiber coax (HFC) network provided with network elements operable for communicating telephony, data, and video signals with customer-premises equipment of a subscriber includes an HFC network manager for monitoring status and configuration of the network elements and the customer-premises equipment. A service, design, and inventory (SDI) database is operable with the HFC network manager for storing data indicative of the configuration of the network elements and the customer-premises equipment. A fault manager having an alarm visualization tool is operable with the HFC network manager and the SDI database for generating visual displays of the status and configuration of the network elements and the customer-premises equipment.Type: GrantFiled: May 8, 2001Date of Patent: September 21, 2010Assignee: AT&T Intellectual Property II, L.P.Inventors: Harvey R. Bialk, Jyoti A. Kulkarni, Paul E. Schauer
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Patent number: 7796888Abstract: A method and system for ensuring confidentiality of signal transmission in a point-to-multipoint data transmission network like Ethernet passive optical network, including at least one hub, at least one transmission medium and at least one station connected to the hub via the transmission medium. When an upstream signal is transmitted from a first station, the upstream signal is reflected by at least one disturbing reflector for producing a disturbing reflection. The disturbing reflection combines with a second reflection of the upstream signal and renders the second reflection undecodable by a second station.Type: GrantFiled: January 8, 2008Date of Patent: September 14, 2010Inventors: Olli Pekka Pohjola, Ari Tervonen
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Patent number: 7783196Abstract: This invention provides a new architecture for a communication system between head-ends and end-users which expands bandwidth and reliability of the communication system. A mux-node receives communication signals from a head-end and forwards the received communication signals to one or more mini-fiber nodes. The connection to the head-end is via a small number of optical fibers and the connections to each of the mini-fiber nodes may be via one or more optical fibers that may provide full duplex communication. The head-end may communicate with the mux-node using digital or digital and analog signals. The mini-fiber nodes may combine the signals received from the head-end with loop-back signals used for local media access control prior to forwarding the signals to the end-users. Upstream data are received by the mini-fiber nodes and transmitted to the mux-node.Type: GrantFiled: October 2, 2007Date of Patent: August 24, 2010Assignee: AT&T Intellectual Property II, L.P.Inventors: Charles D. Combs, Thomas Edward Darcie, Bhavesh N. Desai, Alan H. Gnauck, Xiaolin Lu, Esteban Sandino, Oleh J. Sniezko, Anthony G. Werner, Sheryl Leigh Woodward
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Patent number: 7777590Abstract: An improved HF socket or HF plug socket for connecting to a coaxial wiring system comprises an integrated monitoring means comprising a monitoring circuit arranged in a feed path extending in the HF socket between an interface for connecting a receiver and a junction to the wiring system or to the single-cable system. The monitoring circuit comprises a cut-off or interruption means by which the feed path is interrupted when a direct-voltage signal originating from a connected receiver is applied with a voltage above a threshold voltage for feeding into the wiring system or into the single-cable system over a predetermined or preadjustable period of time (?).Type: GrantFiled: August 3, 2006Date of Patent: August 17, 2010Assignee: Kathrein-Werke KGInventors: Albert Haslböck, Anton Ilsanker, Christian Linke
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Publication number: 20100195623Abstract: An apparatus includes a plurality of content sources providing content relevant to an event at a venue, one or more wireless access points positioned at the venue, a plurality of servers distributing the content signals to the wireless access points, and a plurality of wireless communication devices, each using a browser to retrieve the content through one of the wireless access points. A method performed by the apparatus is also provided.Type: ApplicationFiled: January 29, 2010Publication date: August 5, 2010Inventors: Priya Narasimhan, Rajeev Gandhi
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Patent number: 7769290Abstract: An optical system with a first and second network tiers. The first network tier includes a plurality of major nodes optically interconnected by at least one transmission path. The second network tier includes a plurality of minor nodes disposed along the transmission path and the minor nodes are connected to at least one of the major nodes. The minor node is configured to transmit all traffic to an adjacent major node, and the major nodes are configured to transmit to and receive information from other major nodes and minor nodes on transmission paths connected to the major node.Type: GrantFiled: June 25, 2002Date of Patent: August 3, 2010Assignee: Broadwing CorporationInventor: David F. Smith
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Patent number: 7751350Abstract: A full duplex radio bridge using two transceivers coupled to a first packet network, one for transmitting data toward another radio bridge coupled to a second packet network, and the other for receiving data transmitted from the first packet network toward said second packet network by a transceiver of the other radio bridge. Each radio bridge is coupled to its packet network through one network port whose transmit data path is coupled to one of the transceivers, and whose receive data path is coupled to receive data from the other transceiver. An inner loop and outer loop is used. Management packets are routed to the various transceivers using the inner loop and outer loop by routing and filtering functions. Payload packets are transmitted from one packet network to the other using only the outer loop.Type: GrantFiled: August 3, 2007Date of Patent: July 6, 2010Inventor: William George Pabst
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Patent number: 7751711Abstract: Optical network terminal (ONT) power failure management. A system for permitting a customer of a telecommunication company, for whom fiber to the premises (FTTP) has been installed, to control operating features associated with operation of a battery backup unit (BBU) which is used, during power failure, for powering the ONT associated with the FTTP installation and the customer's telephone(s). The controlling of these features includes utilization of signal-controlled switches, which are manually over-rideable by the customer, thereby providing the desired operating feature control.Type: GrantFiled: July 27, 2006Date of Patent: July 6, 2010Assignee: Verizon Patent and Licensing Inc.Inventor: Stanley J. Wynman
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Patent number: 7748023Abstract: A method, device and/or system for connecting at least one subscriber device, e.g., a legacy subscriber device, to a wideband distribution network. The device may include, for example, an up-converter to up-convert a subscriber upstream signal within a subscriber upstream frequency band supported by the subscriber device, into an up-converted upstream signal within an upstream sub-band of an extended upstream frequency band; and/or a down-converter to down-convert an extended downstream signal in an extended downstream frequency band, into a down-converted subscriber downstream signal within a subscriber downstream frequency band supported by the subscriber device.Type: GrantFiled: January 25, 2005Date of Patent: June 29, 2010Assignee: Xtend Networks Ltd.Inventors: Hillel Weinstein, Yishaiahu Strull, Zeev Orbach