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Match Document Document Title
7388871 Method and system for changing message filter coefficients dynamically  
Certain aspects of changing message filter coefficients dynamically in a packetized network system may comprise selecting a filter for filtering data in a first portion of an incoming data stream....
7380011 Methods and systems for per-session network address translation (NAT) learning and firewall filtering in media gateway  
Methods and systems for per-session NAT learning and firewall filtering are disclosed. Media packets associated with a call/session are received and processed at a media gateway. For the first few...
7376154 Non-intrusive method for routing policy discovery  
Discovering routing policies in information networks. Large networks such as Autonomous Systems are abstracted as a single network element. A plurality of taps on the borders of the abstracted...
7356048 Method and apparatus for network modems on a shared communications channel  
A network modem which interfaces, in an embodiment of the invention, with existing wired media within a home. The network modems couple to an existing shared medium and utilize frequency division...
7352776 Line terminator unit for a subscriber line  
The invention relates to a line terminating device for a subscriber line which transmits and receives broadband signals via a single subscriber line, a broadband signal being composed of a...
7299487 Control program, for a co-processor in a video-on-demand system, which uses transmission control lists to send video data packets with respective subgroups of internet protocol headers  
A control program for a co-processor in a video-on-demand system directs the co-processor to perform the steps of: a) obtain a transmission control list, from an external source, which identifies a...
7280566 Multi-format transport stream decoder  
In a multi-format transport stream decoder that performs a desired process on first transport streams of different formats to generate a second transport stream, a process request information input...
7280469 Efficient implementation of large size FFT  
A system and method of implementing a Fast Fourier Transform (FFT) function in a high data rate communication network. The communication network, employing technology such as VDSL and DMT or FDM,...
7272137 Data stream filtering apparatus and method  
A method and apparatus for filtering data packets in a shared-medium or point-to-multipoint communications network. A filter unit is sent a data packet carrying a filter tag value in a packet...
7183900 Coupling circuit arrangement for data communication over power lines  
A coupling circuit arrangement for data communication over a power line comprises a modulator/demodulator circuit for modulating data signals for transmission over the power line, and for...
7176786 Method of isolating data in a power line communications network  
The present invention provides isolation between a power line local area network and another network such as a power line wide area network. In one embodiment of the present invention, a filter...
7110419 Technique for using address filter parameters to facilitate sign-on procedures in access networks  
A technique is disclosed for reducing collisions of signals occurring on at least one communication channel in an access network. The access network may include at least one Head End, and a...
7061937 Communication system  
A transmission schedule table of program data to be transmitted from a video server to a client is previously transmitted to a filter unit. The filter unit receives program information concerning a...
6980645 Low-pass filtering device with integrated insulator and private installation comprising same  
A filtering device for a narrow-band terminal in a private installation connected to an access network carrying narrow-band services (analogue or ISDN) and broad-band services (xDSL or HomePNA)....
6856682 System and method for processing an input signal communicated on a telephone line  
In one embodiment, a system is provided for processing an input signal communicated on a telephone line, the input signal including a first component associated with a first frequency band, a...
6829336 System and method for active filtering in a telecommunications network  
A filtering device ( 50 ) for active filtering at a customer premises includes an input interface that receives telephone signals and digital data signals communicated from a central office ( 14 )...
6763032 Cable modem system with sample and packet synchronization  
A method for communicating information is disclosed wherein a time slot is allocated in a time division multiple access system for a transmission from a subscriber to a headend. Synchronization of...
6751315 High bandwidth phone line transceiver with capacitor isolation  
A high bandwidth telephone line transceiver for connecting telecommunications equipment to a telephone line provides a pair of isolation capacitors connected to the telephone line to transmit the...
6693917 Digital subchannel transceiver for transmitting data  
A system for transmitting subchannel data over the same media as high speed data, especially DC balanced high speed data. A digital transmitter receives subchannel data and modulates it onto a...
6584079 Apparatus and method of implementing a home network by filtering ISDN-based signals within the customer premises  
An arrangement for implementing a network in an ISDN-BASED customer premises having a 4-wire ISDN S0 bus. The ISDN-BASED customer premises includes a Network Termination Basic Access (NTBA) that...
6580729 Signal multiplexer and method  
A signal multiplexer for N channel signals of different frequency bands that utilizes only N+1 hybrid couplers and presents a constant impedance to the transmitters that supply the N channel...
6574236 Interface device having VDSL splitter and interference filter  
A customer interface device for coupling a customer site to a VDSL-based video, voice and data distribution network includes a signal splitter for separating incoming narrowband and broadband from...
6567519 System and method for processing an input signal communicated on a telephone line  
A system for processing an input signal communicated on a telephone line includes an input node to receive the input signal. The input signal comprises a first component associated with a first...
6320878 Active demarcation point of an access network  
In a hybrid fiber/coax access network (NET) with downstream and upstream channels, the upstream channel serves to transmit voice and video signals as well as data signals from groups of customer...
6141356 System and method for distributing voice and data information over wireless and wireline networks  
A method and device for distributing both high-speed data service, such as digital computer, video and multimedia data, and lower speed data service, such as POTS voice telephone signals,...
6115409 Integrated adaptive spatial-temporal system for controlling narrowband and wideband sources of interferences in spread spectrum CDMA receivers  
An integrated adaptive spatial-temporal system and method for controlling narrowband and wideband sources of interference. The system includes an N element antenna array which receives a spread...
6065059 Filtered utilization of internet data transfers to reduce delay and increase user control  
Method and system aspects for allowing user control of data transfer from websites on the Internet via a web browser on a client system are presented. A method aspect includes establishing limits...
5982785 Combination conventional telephony and high-bit-rate digital channel transmission system comprising high pass filters which comprise both first order and second order high pass filters  
The symmetrical Cu double lead line is asymmetrically terminated by two digital signal high-pass filters, one thereof at the exchange side being formed with a high-pass filter of the 4th order and...
5960066 Method and apparatus for using telephone house wiring for voice/data network  
A system for deriving multiple channels from four-wire residential telephone wiring. The invention provides two voice channels and two, or more, data channels on common residential telephone...
5930340 Device and method for isolating voice and data signals on a common carrier  
A device and system for isolating voice and data signals transmitted on an internal telephone wire network is disclosed. The device further includes voice and/or data connectors coupled to the...
5878221 Network for multimedia asynchronous transfer mode digital signal transmission and components thereof  
Apparatus and methods for transmitting digital multi-media signals in asynchronous transfer mode over unshielded twisted pair wiring in a multi-point topology in an improved cost-effective manner....
5878047 Apparatus for provision of broadband signals over installed telephone wiring  
A network includes a facility for transmitting baseband telephone signals, plural subscriber locations, and twisted pair circuits which connect each subscriber location to the baseband telephone...
5870402 Multiple user digital receiver apparatus and method with time division multiplexing  
A digital receiver apparatus and method, designed for multiple simultaneous users, digitizes a received analog RF signal and tunes to multiple desired frequencies of the received signal on a time...
5870395 Wide area fiber and tv cable fast packet cell network  
53 byte length ATM compliant cells are transmitted over a digital optical fiber path to interconnect with a coaxial feeder cable TV system to support two-way digital services at a plurality of...
5864583 Parameter sampling apparatus  
Apparatus for sampling a signal parameter of a plurality of data signals is disclosed which comprises a plurality of sources (5) of data signals. Each data signal includes sequential groups of...
5841841 Networking computers via shared use of voice telephone lines  
Simultaneous communication of data and voice on a common telephone line are provided between a customer location and a central switching location. At the customer location there may be provided a...
5809033 Use of modified line encoding and low signal-to-noise ratio based signal processing to extend range of digital data transmission over repeaterless two-wire telephone link  
The range of digital data communication services, such as a basic rate 2B1Q ISDN channel, to customer premises located beyond the industry standard achievable range of a two-wire loop can be...
5781865 PCS cell site system for allowing a plurality of PCS providers to share cell site antennas  
A new system for allowing PCS Providers to share cell sites, and more particularly multi-sector antennas, is provided. The present invention utilizes primarily passive, linear components to combine...
5691987 Frequency-channel multiplexer and demultiplexer  
A circuit of low complexity which selects arbitrary channels from a plurality of multichannel input signals and generates from a plurality of individual frequency channels a plurality of output...
5644596 Method and apparatus for frequency selective adaptive filtering  
A method and apparatus for performing subband adaptive filtering is proposed. A signal is prefiltered by a set of complementary filters to provide corresponding subbands of the input signal. The...
5608728 System and method for equalization of forward and reverse channels of a communication network system  
A system and method for equalization for forward and reverse channels of communicating highway network system having a branching tree topology. The system and method cause the forward channel to be...
5594730 Data distribution system and methods for its use  
A subscriber system (10), operating in combination with other similar subscriber systems, for collectively and swiftly distributing multiple copies of digital data to a large number of other...
5519732 Digital baseband to IF conversion in cellular base stations  
A system and method for converting and combining multiple digital baseband signals into a composite IF signal for subsequent up converting and transmitting as an RF signal. The system and method...
5408466 Duplex interconnect dispatch trunked radio  
A subscriber unit for use with a duplex communication system is described. The present invention contemplates a duplex transceiver which incorporates data and voice handling capability. A...
5255267 Apparatus for combining broadband and baseband signal transmissions  
Apparatus for combining broadband RF signals and baseband signals in a baseband distribution cable includes a bridge for coupling the distribution cable to an RF broadband trunk and to a baseband...
5150365 Communication system for coexistent base band and broad band signals  
A base-band and broad-band coexisting communication system comprises a transmission path, a plurality of first data terminal units outputting data to be transmitted in the form of pulse signals...
5008900 Subscriber unit for wireless digital subscriber communication system  
A subscriber unit for wireless communication with a base station in a wireless subscriber communication system includes a FIR chip, a DIF (digital intermediate frequency) chip, a single processor...
4852087 Receiver data gate with automatic gain control  
A telephone system that is useful for facilitating both voice and data communications uses an analog gate. An incoming data signal periodically enters the analog gate. A signal processing means...
4785448 System for communicating digital data on a standard office telephone system  
A network for enabling a local area telephone system to simultaneously carry digital data and analog voice signals on the same tansmission medium. Such a system typically includes a PBX and twisted...
4653046 Single channel subscriber carrier system  
There is provided an improved subscriber carrier system which enables the transmission of both voice frequencies and carrier frequencies by a common line without the need for a battery at the...
Matches 1 - 50 out of 114 1 2 3 >