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Interactive Video Distribution Systems > Video Distribution System With Upstream Communication > Transmission Network > Hybrid Fiber-coax Network Hybrid Fiber-coax NetworkHybrid Fiber-coax Network patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.07/26/07 - 20070174890 - Synchronized multipoint-to-point communication using orthogonal frequency division A multipoint-to-point, orthogonal frequency division multiplexed (OFDM) communication system is provided. The system includes a plurality of remote units and a host unit that includes a demodulator. Each of the remote units transmits an upstream OFDM signal using a multiple access scheme to the host unit demodulator using at least ... 05/10/07 - 20070107034 - Combination meter for evaluating video delivered via internet protocol An apparatus for testing a video stream received at a subscriber site includes a coupling for receiving broadband RF signals communicated over a hybrid fiber coaxial (HFC) network, a signal level measurement circuit operably coupled to the coupling, the signal level measurement operable to generate signal level measurements regarding a ... 05/03/07 - 20070101390 - Method and apparatus for maintaining ont video behavior during initial ont deployments, ont reboots, and loss of olt conditions A method of ensuring continuous receipt of video services based on certain conditions in a passive optical network (PON) is provided. The method includes (i) detecting at a PON element a condition indicating a change of states in receipt of video services, (ii) starting a timing mechanism having a default ... 04/12/07 - 20070083909 - Rf return optical transmission A method of transmitting TV signals and bidirectional telephone communication signals on a single optical fiber, existing telephone twisted pair infrastructure, and existing coaxial cable infrastructure. In addition to allowing the downstream transmission of television channels as well as bidirectional telephone communication, the single optical fibers also provides for the ... 03/29/07 - 20070074261 - System and method for assigning and verifying cpe service calls in a cable network A system for validating two-way continuity of a customer premises equipment (CPE) unit in a hybrid fiber coax (HFC) cable network. A two-way client uses a two-way query interface to acquire information indicative of the two-way operational status of a subscriber CPE units from a two-way validation server and to ... 03/01/07 - 20070050835 - Enhanced fiber nodes with cmts capability Enhanced Cable Modem Termination System (CMTS) functionality, including programmable digital domain modulators and demodulators for dynamic channel assignment, is incorporated into Fiber Nodes (FNs) or mini Fiber Nodes (mFNs), yielding enhanced Fiber Nodes (eFNs). These eFns distribute CMTS functionality deep into Hybrid-Fiber-Coax Networks (HFCN) rather than centralizing the CMTS functions ... 02/01/07 - 20070028280 - Distributed gain subscriber tap with power management A system and method for a distribution network is provided wherein cascaded power amplifiers with bypass switching are disposed along the branches of the network. The amplifiers may have an RF modem and a programmable digital computer that enables communication with a headend or a controlling computer as well as ... 10/26/06 - 20060242682 - An optical communication system for transmitting rf signals downstream and bidirectional telephony signals which also include rf control signals upstream A method of transmitting TV signals and bidirectional telephone communication signals on a single optical fiber, existing telephone twisted pair infrastructure, and existing coaxial cable infrastructure. In addition to allowing the downstream transmission of television channels as well as bidirectional telephone communication, the single optical fibers also provides for the ... 09/28/06 - 20060218616 - Prescriptive and diagnostic system and method for combined rf/optical transmission management A diagnostic and prescriptive system and method for management of a combined optical and RF cable plant system. In an exemplary embodiment the method and system uses optical receivers in a hub or headend to determine a variety of cable plant parameters such as the OMI of the received signal ... 12/22/05 - 20050283816 - Wideband node in a cable tv network 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 ... 11/24/05 - 20050262545 - Catv uplink optical transmission system A CATV station apparatus 100 subjects received optical signals to processes of optical-electrical conversion, signal separation, coupling, and demodulation for obtaining an uplink signal. A received photocurrent monitoring section 170 compares a received photocurrent at a optical receiving section 110 with a predetermined reference current. If the received photocurrent is ... 11/10/05 - 20050251846 - Network architecture for intelligent network elements Hybrid fiber/coax networks employ the existing cable plant used for cable TV and transmit data signals in a frequency bandwidth above that which is used for cable TV. As this cable plant was deployed in a tree and branch topology, data transmissions may be susceptible to noise, variable transmission loss ... 11/03/05 - 20050246756 - System and method for providing multiple services in hfc catv networks Various channels containing digital data for CATV services are distributed over the HFC CATV network from the headend. Digital data is modulated on RF sub-carriers within an allocated downstream RF spectrum. The allocated downstream RF spectrum is split such that different parts of the RF spectrum are transmitted by WDM ... 09/08/05 - 20050198688 - System and method for digitally monitoring a cable plant The present invention provides systems and methods for digitally certifying and monitoring a hybrid fiber coaxial (HFC) cable plant. The present invention may be used to automate the characterization of the upstream and/or downstream channels of the cable plant and provide a path for establishing a performance baseline for the ... 08/04/05 - 20050172329 - Onu device for switching channels An ONU device is disclosed. The ONU device is capable of channel switching in a broadcasting-telecommunications convergence system where digital broadcasting signals of channels are switched according to subscribers, converged with communication signals destined for the subscribers, and transmitted to the subscribers. In the ONU device, a channel information extractor ... 08/04/05 - 20050172328 - Ftth system based on passive optical network for broadcasting service A fiber to the home (FTTH) system based on a passive optical network (PON) includes an optical line terminal (OLT) block, an optical network terminal (ONT) block, and an optical distribution network (ODN). The ONT block includes a video-optical line terminal (V-OLT) and an optical line terminal (OLT) in order ... ### FreshPatents.com Support |