| Patent Number |
Title Of Patent |
Date Issued |
| D443859 |
Network adapter |
June 19, 2001 |
|
| D437289 |
Gateway device |
February 6, 2001 |
|
| D436927 |
Network filter |
January 30, 2001 |
|
| D436919 |
Network adapter |
January 30, 2001 |
|
| 7602596 |
Various methods and apparatuses for a surge protection scheme |
October 13, 2009 |
| In general, various methods, apparatuses, and systems for a surge protection circuit for a Public Switched Telephone Network (PSTN) are disclosed. The surge protection circuit includes a first voltage protection device coupled to a first wire of the PSTN. A voltage protection device |
| 7599365 |
System and method for detecting a network packet handling device |
October 6, 2009 |
| A packet handling detection system detects a packet handling device between an originating device and a detection device by analyzing one or more transmission parameters of a packet received at the detection device. |
| 7555037 |
Methods and apparatuses to provide synchronization symbol on demand for DSL systems |
June 30, 2009 |
| A method and apparatus for providing synchronization data on demand are described. The method includes sending one or more synchronization parameters from a receiver to a transmitter in a data communication system, and adjusting transmission of synchronization data from a transmitter |
| 7535880 |
Method and apparatus for controlling wireless access to a network |
May 19, 2009 |
| A wireless access point includes at least a first service set identifier associated with a public LAN. The wireless access point provides wireless access to the public LAN and to a wide area network (WAN). The wireless access point implements an access policy that provides unrestricted |
| 7526034 |
Method and apparatus for communicating between devices having no common electrical ground |
April 28, 2009 |
| Various methods, apparatuses, and systems are described in which devices having no common electrical ground communicate. In at least certain embodiments, an apparatus includes a transformer block to communicate a plurality of data signals and a synchronous clock signal between a first |
| 7502336 |
Multi-carrier communication using adaptive tone-pruning |
March 10, 2009 |
| An apparatus, system, and method are described for multi-carrier communication using adaptive tone-pruning. The method may include transmitting a data-bearing signal over a plurality of tones on a communication loop within a plurality of communication loops and calculating a minimum |
| 7499438 |
Controlling wireless access to a network |
March 3, 2009 |
| Various methods and apparatus are described in for a wireless access point. The wireless access point allows access to a wireless LAN that has two or more service set identifiers (SSIDs). At least one of the SSIDs is associated with a public wireless LAN. The wireless access point im |
| 7483528 |
Loop extender with selectable line termination and equalization |
January 27, 2009 |
| In accordance with the present invention, a loop extender for improving the transmission of digital subscriber line (DSL) signals over a local loop is disclosed. The loop extender includes selectable line termination and equalization (SLTE) DSL amplification circuitry capacitively couple |
| 7443916 |
Method and apparatus for communication in the presence of impulse noise |
October 28, 2008 |
| A method, system and apparatus for reliable multicarrier communication in the presence of periodic impulsive interference is disclosed. A power level of noise in a signal is determined. An impulse noise in the signal is detected. A gain factor associated with the impulse noise is det |
| 7433395 |
Reliable multicarrier communication in the presence of timing phase error |
October 7, 2008 |
| A method, system and apparatus for reliable multicarrier communication in the presence of timing phase error is disclosed. Phase noise due to a sampling-time phase mismatch between a transmitter device and a receiver device is measured in a signal. A Gaussian noise power level in the |
| 7421015 |
Bit-loading in multicarrier communication systems in the presence of an asymmetric, correlated g |
September 2, 2008 |
| In general, various methods and apparatus are described that use a multi-tone receiver. The multi-tone receiver detects data in a multiple tone signal. The receiver has a detector module to measure a noise power level present in the system and to detect for an asymmetric Gaussian noi |
| 7369607 |
Multicarrier communication using a time domain equalizing filter |
May 6, 2008 |
| Various methods and apparatus are described that use a filter. A receiver may be configured to receive multi-tone signals. The receiver has a Time Domain Equalizer filter employing an algorithm to shorten a length of an incoming impulse response to equal to or less than a guard period by |
| 7301940 |
Dual-use packet/analog phone or phone-adapter in a packet telephony distribution system |
November 27, 2007 |
| A system and method for communicating via a packet telephony distribution system is defined that includes a dual-use/analog phone or phone adapter. Any communication device incorporating the adapter can dynamically receive incoming calls and transmit outgoing calls over analog phone |
| 7194023 |
Loop extender with communications, control, and diagnostics |
March 20, 2007 |
| In accordance with the present invention, a Digital Subscriber Line (DSL) network for improving the transmission of DSL signals over a local loop is disclosed. The DSL network includes a loop extender with communications, control, and diagnostic functionality, and a central office in |
| 7190716 |
Line powered loop extender with communications, control, and diagnostics |
March 13, 2007 |
| A Digital Subscriber Line (DSL) network for improving the transmission of DSL signals includes a plurality of local loops for transmission of upstream and downstream DSL signals, control signals, and Direct Current (DC) power, a plurality of loop extenders with communications, control, |
| 7177419 |
Methods and apparatuses for detecting and reducing non-linear echo in a multi-carrier communicat |
February 13, 2007 |
| Apparatuses, systems, and methods for a multi-carrier communication system that detects and reduces an echo from a non-linear element present on the transmission medium. In an embodiment, a training period is established between a first transmitter-receiver device and a second transm |
| 7167923 |
System and method for selectively bridging and routing data packets between multiple networks |
January 23, 2007 |
| A system and method to permit efficient communication between multiple devices having different network protocols and to permit a private network device to conduct a direct PPPoE session without restricting other devices on the private network from using another IP address. In partic |
| 7111054 |
Customer premises equipment autoconfiguration |
September 19, 2006 |
| A system and method for automatically configuring customer premises equipment, the system including a search module configured to select a set of configuration values and to create a discover packet including the set of configuration values. The discover packet is transmitted to atte |
| 7085836 |
System and method for automatic private IP address selection |
August 1, 2006 |
| A system and method for automatically selecting and assigning private IP addresses to locally networked devices are provided whereby a mechanism exists to prevent an overlap in private IP addresses assigned to a gateway device and to the various locally networked devices. An IP module |
| 7072999 |
Robust packet arrival time detector using estimated signal power |
July 4, 2006 |
| A robust packet arrival time detector using a power estimate to validate a packet arrival time measurement. A packet arrival time measurement is considered valid when the value of the power estimate signal indicates that a packet is being received. A power estimator comprises a bandpass |
| 7072385 |
Load coil and DSL repeater including same |
July 4, 2006 |
| Systems and methods are disclosed for improving DSL performance, including ADSL and VDSL performance, over a local loop between a telephone company central office and a customer premises. In particular, a DSL repeater is coupled to the local loop and amplifies downstream and upstream DSL |
| 7068649 |
Extended bandwidth homePNA system compatible with homePNA 2.0 |
June 27, 2006 |
| An extended bandwidth HomePNA system uses a transmit spectrum having a greater bandwidth than the bandwidth specified by a HomePNA 2.0 communication standard. The extended bandwidth system of the invention provides for additional copies of a spectrum of a 2 Mbaud training signal for |
| 7061857 |
System and method for fault isolation for DSL loop extenders |
June 13, 2006 |
| A system and method are disclosed to implement fault detection in DSL loop extenders. The system of the invention includes a plurality of loop extenders coupled to a local loop, a loop extender (LE) test box coupled to the local loop, and fault detection circuitry coupled to each of the |
| 7023910 |
Dual-line DSL system and method |
April 4, 2006 |
| A dual-line DSL system comprises a central office and a customer premises coupled by at least two communication paths that together provide a single high-bandwidth channel. An ADSL transceiver unit-remote (ATU-R) at the customer premises is configured to reduce the effects of far end |
| 6977958 |
Differentially-driven loop extender |
December 20, 2005 |
| Systems and methods are disclosed for improving DSL performance, including ADSL and VDSL performance, over a local loop between a telephone company central office and a customer premises. In particular, a loop extender is coupled to the local loop and differentially amplifies downstream |
| 6965636 |
System and method for block error correction in packet-based digital communications |
November 15, 2005 |
| A system and method for efficiently correcting block errors in packet-based digital communications are provided whereby the ratio of redundant symbols/message symbols over the length of a data packet decreases in order to more efficiently use available bandwidth. The reduction of this |
| 6947529 |
DSL compatible load coil |
September 20, 2005 |
| A load coil is disposed along a local loop for conditioning POTS signals while permitting passage of higher frequency DSL signals with low attenuation. In one embodiment, the load coil includes a coupled inductor having multiple capacitive elements coupled thereto, the capacitive ele |
| 6898236 |
System and method for adaptively accommodating a high amplitude downstream signal in a DSL modem |
May 24, 2005 |
| A system and method are disclosed for adaptively accommodating a high amplitude downstream signal in a DSL modem. High amplitude downstream signals are common with local loop lengths of less than about 6,000 feet and can saturate DSL modem components and impair DSL service if not eff |
| 6874096 |
Apparatus and method for detecting packet arrival time |
March 29, 2005 |
| A detector for detecting packet arrival time for packets received by a Home Phoneline Network Alliance (HPNA) receiver. The detector correlates received preamble symbols with stored preamble symbols and generates an estimation of the packet arrival time when the entire transmitted preamb |
| 6839757 |
System and method for automatically discovering accessible services on a computer network and pr |
January 4, 2005 |
| A system and method for automatically discovering accessible services on a computer network and providing automatic access thereto. In particular, a gateway server is provided which periodically scans a building network for available network services and publishes links to the available |
| 6792104 |
Transformer-coupled matching impedance |
September 14, 2004 |
| A system for matching impedance in the circuitry of an xDSL communication device to improve noise cancellation resulting from signal leakage between transmit and receive signals. The system for matching impedance includes a transformer configured to couple an impedance, which is substant |
| 6778646 |
System and method for coupling multiple home networks |
August 17, 2004 |
| A system and method for coupling multiple home networks includes a first copper wire network, a second copper wire network, and a high pass coupler disposed between the first and second copper wire networks. The high pass coupler is configured to transfer data signals between the first a |
| 6697358 |
Emulation of phone extensions in a packet telephony distribution system |
February 24, 2004 |
| A system and method for emulating phone extensions in a packet telephony distribution system include using a gateway and an adapter. Signaling protocols between the gateway and the adapter provide procedures to enable typical analog phone system characteristics such as a dial tone and a |
| 6694016 |
Odd-order low-pass POTS device microfilter |
February 17, 2004 |
| An odd-order low-pass microfilter is disclosed for being interposed between a home telephone wiring network and a POTS, or voice band, device to separate voice-band signals from higher frequency signals, such as ADSL signals and home networking signals. The filter topology is substantial |
| 6661805 |
System and method for automatically changing a device transmit/receive configuration |
December 9, 2003 |
| A system and method are disclosed for automatically configuring an Ethernet device as either an Ethernet end station or as an Ethernet hub to permit the Ethernet device to be coupled to another Ethernet device regardless of whether the Ethernet devices are Ethernet end stations or Ethern |
| 6553087 |
Interpolating bandpass filter for packet-data receiver synchronization |
April 22, 2003 |
| An interpolating bandpass filter for packet-data receiver synchronization comprises a single delay line that delays the passband-sampled data from the analog-to-digital converter, and a convolving structure that uses the delay line to implement a L-times oversampling bandpass filter. A s |
| 6542028 |
System and method for efficient demodulation and filtering of a received signal |
April 1, 2003 |
| An efficient demodulation and low pass filter structure comprises a shift-add-negate structure that effectively multiplies each received sample by a combined demodulation and filter coefficient, and an accumulator that accumulates the products. Low pass filter coefficients are select |
| 6529549 |
System and method for an equalizer-based symbol timing loop |
March 4, 2003 |
| An equalizer based symbol timing loop system incorporates existing receiver architecture to modify an input sample stream to match a transmitter's symbol rate. The system includes a phase detector that identifies a center tap in a linear equalizer in the receiver and then captures the va |
| 6507608 |
Multi-line ADSL modulation |
January 14, 2003 |
| A system and method are disclosed for transmitting data over multiple twisted pairs and receiving the data at a single receiver. In one embodiment, data is transmitted over an additional channel existing as the difference between the average voltages of two twisted pairs. |
| 6285754 |
Odd-order low-pass pots device microfilter |
September 4, 2001 |
| An odd-order low-pass microfilter is disclosed for being interposed between a home telephone wiring network and a POTS, or voice-band, device to separate voice-band signals from higher frequency signals, such as ADSL signals and home networking signals. The filter topology is substantial |
