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Interactive Video Distribution Systems > Video Distribution System With Upstream Communication > Transmission Network > Detail Of Use Of Two-way Spectrum Detail Of Use Of Two-way SpectrumDetail Of Use Of Two-way Spectrum 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.10/18/07 - 20070245394 - Training premable in multipoint-to-point communication using orthogonal frequency division multiplexing A training premable in multipoint-to-point communication using orthogonal frequency division multiplexing (OFDM) is provided. In one embodiment, a system comprises a host unit and a plurality of remote units using a multiple access scheme to communicate at the same time with the host unit using OFDM. The host unit sends ... 08/09/07 - 20070186261 - Data-specific bandwidth allocation in multipoint-to-point communication using orthgonal frequency division multiplexing A bidirectional communication system is provided. In one embodiment, a system comprises: a host unit and a plurality of remote units using a multiple access scheme to communicate at the same time with the host unit using orthogonal frequency division multiplexing (OFDM). The host unit allocates only a subset of ... 08/09/07 - 20070186260 - Methods for multiframe alignment Methods for multiframe alignment are provided. In one embodiment, a method comprises sharing upstream bandwidth capacity among a plurality of remote units in a manner that permits at least two of the remote units to transmit to a host at any one time using the upstream bandwidth capacity, the upstream ... 07/05/07 - 20070157280 - Multimedia in-band gateway An in-band gateway which enables TV operators having a narrow out-of-band return channel the capability of providing high bandwidth applications including voicemail, voice attachments, music on demand, and picture mail, by using the in-band channel and the out-of-band channel in parallel. The in-band gateway can receive multiple sources of multi-media ... 04/26/07 - 20070094697 - Personalized content A media switch enables a terminal to access content by receiving a content request from a terminal for a first piece of content to be distributed over a cable system, identifying a personal channel within resources available in the cable system to distribute the first piece of content to the ... 03/09/06 - 20060053462 - System and method to expand catv transmission spectrum using high frequency spectrum overlays A system and method for the expansion of the spectrum by the generation and introduction of high frequency spectrum overlays is disclosed. In an electronic content distribution system a plurality of input stream are combined at a head end into two combined signals having separate frequency band ranges. The signals ... 02/02/06 - 20060026660 - Video signal transceiver A video signal transceiver has a triax port, a baseband port, a demodulator for converting a HF video signal received at said triax port into a baseband video signal for outputting at said baseband port and at least one modulator for converting a baseband control signal received at said baseband ... 12/29/05 - 20050289632 - Controlled isolation splitter apparatus and methods Apparatus and methods for controlled splitting and isolation of signals in a radio frequency network. In one embodiment, the network comprises a cable television network, and the apparatus comprises a signal splitter having controlled isolation loss at its output ports in at least one frequency band, thereby enabling communications between ... 12/22/05 - 20050283815 - Apparatus and methods for network interface and spectrum management Apparatus and methods for the management of radio frequency spectrum within a network such as a CATV network. In one aspect of the invention, an improved signal reflector apparatus adapted for use in the network is disclosed, the reflector circuit being designed to strongly reflect signal frequencies at the lower ... 12/08/05 - 20050273838 - Method and apparatus for display of a digital video signal A method and apparatus for display of a digital video signal includes a demodulator capable of receiving a major channel of the digital video signal. The major channel of the digital video signal includes one or more minor channels, wherein the minor channels are specific and separate channels of broadcast ... 11/10/05 - 20050251845 - Method for quickly identifying network session resources A system and method for minimizing timeouts when enhanced services are requested through a digital home communications terminal (DHCT) requiring discovery of a service group identification (SGID) assigned to the DHCT. A service group map (SGM) includes a plurality of entries. Each entry includes a frequency, a tabulated transport stream ... 10/13/05 - 20050229230 - Shifted channel characteristics for mitigating co-channel interference Methods and apparatuses for minimizing co-channel interference in communications systems are disclosed. A method in accordance with the present invention comprises shifting a characteristic of the first signal with respect to a like characteristic of the second signal to mitigate co-channel interference, and transmitting the first signal and the second ... 07/28/05 - 20050166250 - Band limited port aggregation in a digital return path catv system A method and system for multi-port aggregation in a digital return path CATV system digitizes each of a plurality of return path signals, splits each of the plurality of return path signals into a low band and an upper band (41), combines each of the plurality of low band signals ... 07/14/05 - 20050155080 - Resource allocation in multi-stream ip network for optimized quality of service A resource allocation of multiple compressed AV streams delivered over the Internet is disclosed that achieves end-to-end optimal quality through a multimedia streaming TCP-friendly transport (MSTFP) protocol that adaptively estimates the network bandwidth while smoothing the sending rate. Resources allocated dynamically according to a media encoding distortion and network degradation ... ### FreshPatents.com Support |