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Match Document Document Title
7614074 Burst-mode digital transmitter  
A transmitter ( 305 ) for transmitting reverse optical signals in a broadband communications system ( 300 ) that includes a converter ( 320 ) for digitizing the analog RF signals and a...
7613395 Optical network termination apparatus with shared components and passive optical network system comprising same  
A transmission system for a passive optical network comprises a shared optical transmission apparatus, a shared electrical interface apparatus and a plurality of transmission convergence...
7599624 System and method for switching channels using tunable laser diodes  
A channel switching function is added to a wavelength division multiplexing passive optical network (WDM-PON) system, which is an access optical network system, and the potential transmission rate...
7593638 Secure upstream transmission in passive optical networks  
A method and system for ensuring confidentiality of signal transmission in a point-to-multi point data transmission network like Ether net passive optical network, including at least one hub, at...
7581237 Method and apparatus for generating television program recommendations based on prior queries  
A method and apparatus are disclosed that generate television program recommendations based on queries that have previously been performed by a user on an electronic program guide. A conventional...
7571250 Method and apparatus for distributing messages  
A procedure identifies multiple messages to distribute via a cable television network. The procedure determines first performance data associated with a downstream subnetwork and determines second...
7565680 Advanced set top terminal having a video call feature  
A set top terminal equipped with a camera and microphone includes the capability to send and receive video calls through a cable television delivery system or other communications networks. In...
7548988 Software downloading using a television broadcast channel  
A software distribution architecture having a television broadcast system as its infrastructure. Software from a software repository ( 1600 ) is mixed into a television broadcast system and...
7509049 System for selectively combining satellite signals sent to a user through an optical fiber  
A method and apparatus are provided for transferring a plurality of satellite signals through an optical communication network. The method includes the steps of selecting a frequency of a local...
7490345 Upstream only linecard with front end multiplexer for CMTS  
One or more upstream line cards each include a digital or analog multiplexer front end circuit for a Cable Modem Termination System. Each upstream line card has only upstream receivers and allows a...
7466919 System for flexible multiple broadcast service delivery over a WDM passive optical network based on RF block-conversion, of RF service bands within wavelength bands  
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...
7457542 Optical access network system  
An optical access network system having a function of correcting upstream signal waveform distortions occurring in the PON section, wherein a central office side apparatus comprises a main...
7451472 System and method to test network performance with impairments  
The upstream performance characteristics of a network are measured by looping a signal through both the downstream and upstream paths of the network. Test equipment may be located at a headend of...
7450850 Fiber and wire communication system  
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...
7440702 Method for transmitting digital image signal, digital image transmitting device, digital image sending device and digital image receiver  
A multiplexer of a transmission section generates a clock signal by multiplying a reference clock signal of a digital image signal by a predetermined number ‘K’. A parallel digital image signal...
7437750 Data transceiving system and method therefor  
An object is to perform retrial processing according to the allowable volume on communication lines made available at response information receiving equipment. A broadcast unit 140 , when...
7421728 Interactive television receiver unit browser that waits to send requests  
In interactive television, a broadcaster may broadcast triggers to a great many receiver units prompting the receiver units to attempt to send requests to a single destination on the Internet at...
7412169 FTTH system for convergence of broadcasting and communication through switched broadcasting  
A fiber to the home FTTH network for convergence of broadcasting and communication is disclosed. The network includes: an OLT for receiving and converting a first predetermined number of broadcast...
7340171 FTTH system for broadcast/communication convergence using IEEE 1394  
A broadcast/communication convergence system, and an FTTH (Fiber To The Home) system that can accommodate broadcast signals of various channels and variable band signals by converging broadcast and...
7284260 Method and apparatus for bit vector array  
A bit vector array apparatus provides a high speed method for processing network transmission controls. Complex data structures for controlling network access are represented in the simplest...
7272847 System for return bandwidth minimization using selective sampling  
In a cable television system a system for supporting SCU return in FTTB-MDU and FTTC/FTTcab configurations. Fiber, baseband transceiver and networking capabilities are shared with data and voice...
7222358 Cable television return link system with high data-rate side-band communication channels  
A Cable Television (CATV) digital return link system that provides dedicated, high-speed, full-duplex and point-to-point connections between users and the head end system is disclosed. The CATV...
7194757 Method and apparatus for push and pull distribution of multimedia  
The present specification discloses a multimedia distribution system and method. The system and method has a producer workstation, a delivery server, a high-bandwidth one-way satellite transmission...
7171678 Systems and methods for establishing and administering sessions in digital cable systems  
Systems and methods facilitate the provisioning of a new service in a cable system without requiring that server hardware and/or software be changed to implement the service, or that an equivalent...
7162731 Radio frequency characterization of cable plant and corresponding calibration of communication equipment communicating via the cable plant  
A switch router and one or more gateways incorporating a diagnostic and calibration system that performs RF characterization of an underlying cable plant. The switch router is connected at a point...
7124428 Information providing system, information terminal device, information server device and information providing method  
An information providing system allows to intentionally modify the arrangement of clips to be reproduced from that of the first transmission. The program clips and the CM clips obtained by...
7103907 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...
7100192 Method of and an apparatus for controlling a web server, a web server control program, and a storage medium on which the web server control program is stored  
A WEB server includes a control unit for HTTP server, a table of addresses of VOD servers, and a table of identifiers of video data. The control unit accesses these tables, in response to a request...
7039939 Method and apparatus for creating virtual upstream channels for enhanced lookahead channel parameter testing  
Methods, apparatus, and computer-readable media are disclosed for creating a virtual lookahead upstream receiver in a single physical upstream receiver in a CMTS, thereby avoiding having to...
7020893 Method and apparatus for continuously and opportunistically driving an optimal broadcast schedule based on most recent client demand feedback from a distributed set of broadcast clients  
A broadcast method and system for continuously and opportunistically driving an optimal broadcast schedule based on most recent client demand feedback from a distributed set of broadcast clients....
6973670 In-building CATV system, down-converter, up-converter and amplifier  
In an in-building CATV system in which an upward signal is frequency-converted to an in-building upward signal using an up-converter at a terminal side and the frequency-converted in-building...
6937620 Transmission system, transmitter and receiver  
Transmission system for transmitting an MPEG-2 transport stream from a transmitter ( 10 ) to a receiver ( 14 ), provided with a return channel ( 16 ) through which the receiver ( 14 ) can transmit...
6886181 Extended distribution of ADSL signals  
A plurality of metallic telephone lines carrying both baseband POTS (plain old telephone service) and DSL (digital subscriber line) or ADSL (asymmetric digital subscriber line) signals originate at...
6877166 Intelligent power level adjustment for cable modems in presence of noise  
A technique is disclosed for selectively adjusting the power and/or frequency of cable modems without relying solely on the most recent measurement of these values to determine whether a change is...
6848116 Method and apparatus for on-demand video program access control using integrated out-of-band signaling for channel selection  
An on-demand program access system for broadband, frequency division multiplexed cable television signals, one or more infrastructure element (IF) constituting a local video network signal server...
6829781 Network-based service to provide on-demand video summaries of television programs  
A network-based device allows customers to receive television programming and to view summaries of the programming. A method of providing the summaries comprises: dividing a received program into...
6779197 Reverse path upstream signaling for status monitoring  
A reverse path signaling circuit is described which provides less noise and interruption when injecting signals upstream to a head end. The reverse path signaling circuit includes a low pass...
6728968 Upward-joining-noise decreasing method and apparatus  
A method for decreasing upward-joining-noise in an upward-signal-inputting position of a center device includes the steps of: measuring a noise level of each of a plurality of upward signals...
6725462 Optimizing upstream transmission in a cable television distribution plant  
A method and apparatus for reducing delay distortion of upstream transmissions in a cable television (CATV) distribution plant. Upstream transmission in a CATV distribution plant, i.e., from the...
6704932 Multi-access communication system and uplink band allocating method  
In a multi-access communication system where a center station dynamically allocates the band of an uplink to subscriber stations, the band of an uplink is flexibly and efficiently allocated when...
6694516 Method used in a telecommunication network, termination unit realizing the latter and a telecommunication network including such a termination unit  
The method is used in a telecommunication network wherein a central station (CS) is coupled to a plurality of residences (R 1 ,R 2 ,R 3 ). One of the residences (R 3 ) includes a termination unit...
6687907 Prevention of broadband cable service theft  
Detecting tampering of an incoming cable to which a network interface unit (NIU) is connected by testing for the reflected signal that is present when the signal being transmitted to the head end...
6637033 Signal splitter and gain adjustment system for a cable data system  
In a cable data system, frequency division multiplexed upstream data traffic is first split for subsequent signal processing. In the course of performing an analog RF signal splitting operation,...
6637028 Integrated television and internet information system  
A method and apparatus that enables a user to store or indicate event information while watching a television broadcast is disclosed. The event information is transmitted to a server, preferably...
6622307 Multiple-room signal distribution system  
A multiple-room communication system is adapted to provide digital television programming (e.g. DBS) to a plurality of rooms in a single family dwelling and may be further adapted to provide...
6598232 Hybrid amplifier-regenerator for optimizing cable network transmissions  
A hybrid amplifier and regenerator (HAR) device is designed for use in a communications network for carrying downstream traffic in a forward frequency band and for carrying upstream traffic in a...
6574795 Reliable communication of data by supplementing a unidirectional communications protocol  
An information delivery system includes receiving platforms to receive data communicated from a transmitting source according to a unidirectional transfer protocol over a link. At least some...
6571393 Data transmission system  
A data transmission system is proposed, for example for video-on-demand, internet or multimedia applications, in which a number of subscribers in a building are connected to a central server...
6571296 Apparatus and method for hybrid network access  
A system in which a personal computer sends messages into a TCP/IP network using a conventional dial-up link and downloads data from the TCP/IP network using a high-speed one-way satellite link. A...
6550063 Network interface module for receiving cable television broadcasting  
An HPF for blocking an upstream signal and passing a downstream signal, an LPF for blocking the downstream signal and passing only an upstream data signal, a directional coupler for branching, and...
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