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7489633 |
Method and apparatus for differential link bring-up for MoIP on the Internet
Method and apparatus are described for differential MoIP bring-up and compression negotiation. A first differential, and, more particularly, overlapping, bring-up method involves initiating a...
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7486723 |
Asymmetrical digital subscriber line system with improved data rate
An improved ADSL system with improved data rate is disclosed. In one embodiment, the upstream data bit rate is increased by extending the upstream transmission band. In another embodiment, the...
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7486722 |
Bandwidth efficient cable network modem
A MUD enabled cable modem that provides efficient use of cable television network bandwidth in the presence of interference and noise is disclosed. The modem design provides for compatibility with...
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7483472 |
Apparatus and method for transmitting and receiving data in a code division multiplexing-frequency hopping-orthogonal frequency division multiple access communication system
A system and method for transmitting data by a base station in a multiple access communication system including a plurality of sub-channels, each of which includes a predetermined number of...
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7483481 |
System and method for adaptively updating precoder taps
A system for adaptively updating precoder taps comprises a first signal path, a second signal path, a delay mechanism, and logic. The first signal path is configured to receive encoded signals. The...
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7480327 |
System and method for controlling line driver power in digital subscriber line modems
A method for operating plurality of DSL modem transmitters integrated within a circuit card. The method includes each DSL modem transmitter: generating a full power physical frame when the DSL...
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7477652 |
Linking cross bar controller
A crossbar for communicating with at least one device, the crossbar comprises N ports. Each one of the N ports comprises a link logic unit to receive messages and data from a respective device, N-...
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7477663 |
High layer bonding of multiple access lines for carrier grade access
Apparatus and method that increases bandwidth and reliability of digital subscriber line (DSL) connections. The system involves provisioning multiple DSL lines, splitting traffic into cells,...
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7477683 |
Periodic DMT signals with cyclic extension
A method for digital communication includes generating time-domain symbols having a predetermined symbol duration in accordance with a discrete multi-tone (DMT) modulation scheme. A cyclic...
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7477682 |
Echo cancellation for a packet voice system
An apparatus and methods supporting improved echo cancellation in a packet network is disclosed. An embodiment of the present invention may permit a split-band communication system operating in a...
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7477708 |
Modes of operations in QAM modems
The method of selecting an optimum mode of operation of the QAM modem comprising (A) using a host interface to select a pair of states, the first state being an initial state; the second state...
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7477170 |
Sample rate converter system and method
A sample rate conversion is accomplished by presenting to a numerically controlled oscillator (NCO) register a clock input at the desired output rate; first-modifying the NCO register contents...
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7474694 |
Methods, devices and computer program products for adaptively adjusting passbands of high-pass filters of asymmetric digital subscriber link (ADSL) modems
The present invention provides methods and related devices for adjusting the passband and/or cutoff frequency of a high-pass filter of an ADSL modem. A level of a received ADSL signal is compared...
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7471721 |
System and method for scrambling the phase of the carriers in a multicarrier communications system
A system and method that scrambles the phase characteristic of a carrier signal are described. The scrambling of the phase characteristic of each carrier signal includes associating a value with...
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7471771 |
Telecommunications diagnostic information management
A diagnostic tool is adapted to include the capability of initiating one or more diagnostic tests, collecting the raw data from the diagnostic test(s) and transporting the raw diagnostic data to an...
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7463682 |
Coding method for binary digits coding and its circuit for digits transmission
This invention presents a coding method for binary digits coding and its circuit for digits transmission. With this coding method, the binary digits are corresponding to a sequence of pulse groups....
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7463676 |
On-line phase noise measurement for layered modulation
A method and apparatus for measuring the phase noise of an low noise block (LNB) and other devices while the device under test is on line is disclosed. Using a signal processing procedure over a...
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7463675 |
Direct digital access arrangement circuitry and method for connecting to phone lines
An isolation system is provided that is suitable for use in telephony, medical instrumentation, industrial process control and other applications. Preferred embodiments of the invention comprise a...
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7460588 |
Digital subscriber line (DSL) state and line profile control
Disclosed are systems and methods for evaluating whether to transition operation of a DSL line from a current line profile to one or more target line profiles. For example, in one embodiment, a...
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7460878 |
Radio communication system and radio communication device that periodically compares transmission power with a maximum value to determine a transmission mode
In the mobile terminal, the reception quality estimating unit measures a reception quality, and at least one of the data buffer monitoring unit and the transmission power monitoring unit measures a...
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7460587 |
Electronic circuit for performing fractional time domain interpolation and related devices and methods
A clock offset compensation arrangement may include a fractional interpolator for applying a trigonometric interpolation to a sampled input signal according to a clock offset signal. It uses...
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7460465 |
Method for reducing signaling overhead in a multicarrier system with dynamic bit allocation and corresponding transmitter/receiver device
A method for reducing signaling overhead in a multicarrier system with dynamic bit allocation per subcarrier and a corresponding transmitter/receiver device, are provided wherein an established bit...
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7457353 |
Method and system for mitigating Fourier transform side lobes
The present invention is directed to implementing theoretical foundations of frequency domain methods aiming to locally decrease the impact of aggregate side lobes of a few discrete frequency...
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7454607 |
Techniques for managing applications in a portable communication device
An arbitration engine manages applications in a portable communication device by identifying a comprehensive DSP image that includes all modules necessary to run a new application as well as...
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7453930 |
Method and system of tone ordering for discrete multi-tone systems with tone grouping
The present disclosure describes a method and system of tone ordering for discrete multi-tone (DMT) systems with tone grouping. Some illustrative embodiments may include a method, comprising,...
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7453944 |
Multi-mode signal modification circuit with common mode bypass
A signal modification circuit is provided for use with multi-mode formatted data in accordance with a common mode component and a high frequency component formatted in accordance with a...
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7453929 |
High speed access system over copper cable plant
A system for transporting a high speed data stream over a plurality of relatively low bandwidth unshielded twisted copper pairs within the local loop plant or in any environment having a plurality...
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7453943 |
Hybrid circuit for broadband modems
A hybrid circuit that decouples gains for a transmit signal and a receive signal of a broadband modem that is coupled to a telephone line is provided. The hybrid circuit includes a multi-port...
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7453895 |
Outlet with analog signal adapter, a method for use thereof and a network using said outlet
An outlet ( 70, 75, 76, 78, 79 ) for a Local Area Network (LAN), containing an integrated adapter ( 21, 25 ) that converts digital data to and from analog video signal. Such an outlet allows using...
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7447191 |
Ghost network built using data transmission via phantom mode
A power supply distributor permits to broadcast data received in phantom mode at one of its port to at least few of the other ports such that the respective apparatus connected to the power supply...
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7443915 |
Method and apparatus for providing out of band communications over structured cabling
An out of band communications apparatus includes first and second data lines arranged in a differential pair. The data lines convey high speed data within a first frequency range and out of band...
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7443911 |
Communication devices capable of using system clock inputs for embedded television applications
According to one embodiment of the present invention, a device may receive one of multiple frequencies at a clock input of the device; determine which of the multiple frequencies is received; and...
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7440496 |
Apparatus and method to extend communication range
Briefly, in accordance with an embodiment of the invention, an apparatus to extend communication range is provided. The apparatus may be coupled to a wireless local area network (WLAN) access point...
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7440508 |
System and method for cellular communications
A a system for allocating subcarriers to subscribers, comprising a subcarriers allocation controller, connected to a subcarrier modulation unit in a transmitter and to a subcarrier demodulation...
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7440498 |
Time domain equalization for discrete multi-tone systems
A multiple carrier communication system includes a primary impulse shortening filter that receives an output signal of an analog to digital converter and accepts coefficients. A secondary impulse...
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7436289 |
Remote keyless entry system with two modes of demodulation
A remote signaling receiver system includes a receiver that operates in two different modes of demodulation to accommodate different types of signals from different types of transmitting devices. A...
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7436893 |
Multiuser allocation method for maximizing transmission capacity
Disclosed is a method and computer-readable medium for bit and power allocation for modems sharing a common multi-carrier binder, including Discrete Multi-Tone (DMT) based Digital Subscriber Line...
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7433395 |
Reliable multicarrier communication in the presence of timing phase error
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...
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7433394 |
Transmitting/receiving arrangement, and a method for bidirectional transmission of data via a digital interface in a radio
A transmitting/receiving arrangement comprises a baseband module ( 1 ) and a radio-frequency module ( 3 ), which are connected to one another via a bidirectional data line ( 21 ) and a bit clock...
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7433393 |
Apparatus for controlling a digital signal processor for radio isolation and associated methods
A method of operating a radio-frequency (RF) circuitry and a signal-processing circuitry in a mobile telephone apparatus includes at least partially disabling the signal-processing circuitry while...
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7430212 |
System and method for improved data transmission speed by fixing the lower corner frequency at a frequency above voice band in a symmetric DSL transmission system
A system and method of the present invention improves data transmission speeds by fixing the lower corner frequency at a frequency above voice band in a symmetric DSL transmission system. By using...
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7428304 |
Method and apparatus for detecting subscriber alerting signal tones and customer premises equipment alerting signal tones to non-echo canceling modems
A non-echo canceling voice band modem capable of detecting subscriber alerting signal (SAS) tones and customer premises equipment alerting signal (CAS) tones is provided. The modem includes a...
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7424051 |
Pad and CODEC detection
A Digital Impairment detection scheme which is designed for providing reliable estimate of digital impairments such as PAD, and CODEC type in the presence of digital impairments such as Robbed Bit...
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7421044 |
Quasi error free (QEF) communication using turbo codes
Quasi error free method and system are presented for encoding and decoding information using turbo codes as an inner code in conjunction with an algebraic outer code linked by an interleaver. This...
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7421015 |
Bit-loading in multicarrier communication systems in the presence of an asymmetric, correlated gaussian noise sources
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...
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7421014 |
Channel bonding of a plurality of multi-gigabit transceivers
A method for channel bonding begins when a master transceiver receives a channel bonding sequence. The process continues with the master transceiver generating a channel bonding request and...
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7417943 |
Dynamic compression training method and apparatus
An apparatus for communicating between an access endpoint and a mobile device endpoint comprising a network service center attached to the access endpoint. A memory stores a prototype corpus...
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7418048 |
Tone ordered discrete multitone interleaver
A tone ordered discrete multitone interleaver system and method, including a tone ordered interleaver and deinterleaver, are provided for efficiently communicating data despite noise affecting a...
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7418030 |
Flexible initialization method for DSL communication systems
A communication system 10 initialized using an iterative training portion is disclosed. The communication system 10 comprises a first transceiver 12 operable to communicate according to a...
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7418039 |
Adaptive communication
The invention provides a system for analysing a signal received over a channel to determine the channel characteristics. The determined characteristics are then used to divide the sub-carriers up...
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