Bizarre Patents
A method to tenderize meat with an explosive shockwave.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8121062 | Method and apparatus for cross-talk cancellation in frequency division multiplexed transmission systems A method and apparatus are disclosed for canceling cross-talk in a frequency-division multiplexed communication system. The disclosed frequency-division multiplexed communication system employs multiple carriers having overlapping channels and provides an improved c... | 02/21/2012 |
| 8116240 | Bi-directional bridge circuit having high common mode rejection and high input sensitivity A bidirectional communications interface is provided that connects a transmitter and a receiver, or a transceiver, to a transmission line. Under an embodiment, the bidirectional interface generates positive and negative polarity data signals using two separate diffe... | 02/14/2012 |
| 8077641 | Echo cancellation for channels with unknown time-varying gain After an initial training session, a “Dynamic Echo Canceller” (DEC) provides echo cancellation where only access to an input signal and a composite output signal are available, and the input signal is subjected to an unknown variable gain function. In one embodi... | 12/13/2011 |
| 8077642 | Methods and apparatus for signal echo cancellation and transmitter calibration in full duplex systems A method includes transmitting a first signal over a network from a first communication link to a second communication link. The method further includes receiving a second signal with the first communication link from the second communication link. The method furthe... | 12/13/2011 |
| 8027279 | Echo cancellation Embodiments related to echo compensation have been described and depicted. ... | 09/27/2011 |
| 8023438 | Analog signal path modeling for self-interference cancellation Described herein is a device that includes at least one radio frequency transmitter; at least one radio frequency receiver; a copy block configurable to output a digital representation of a currently transmitted signal and a model having a representation of at least... | 09/20/2011 |
| 7924752 | Voice and data exchange over a packet based network with AGC A signal processing system which discriminates between voice signals and data signals modulated by a voiceband carrier. The signal processing system includes a voice exchange, a data exchange and a call discriminator. The voice exchange is capable of exchanging voic... | 04/12/2011 |
| 7916671 | Echo cancellation for duplex radios In a Frequency Duplex Division (FDD) radio, the transmit and receive signals are separated by frequency. In a wireless application, the power of the transmitted signal is typically much larger than the power of the received signal. A duplexer is used to separate the... | 03/29/2011 |
| 7898992 | Network apparatus with shared coefficient update processor and method thereof A network apparatus with a plurality of transport ports and a shared coefficient update processor is proposed. Each of the plurality of transport ports includes a PHY module. The coefficient update processor is coupled to each PHY module and is shared by the plurali... | 03/01/2011 |
| 7864718 | Echo cancellation device for full duplex communication systems An apparatus for echo cancellation in a transceiver of a full duplex communication system, where the transceiver includes a transmitter for transmitting a transmit signal and a receiver for receiving a receive signal, includes: an echo cancellation signal generator,... | 01/04/2011 |
| 7843858 | Crosstalk masking for digital subscriber loops A method is provided for reducing crosstalk problems in digital subscriber loop systems. The problems are associated with a second receiver on a second loop responding to a signal from a first transmitter on a first loop. The signal is actually destined for a first ... | 11/30/2010 |
| 7835311 | Voice-activity detection based on far-end and near-end statistics Methods and apparatus of managing a communication system, wherein a decision regarding a level of activity at a first end is made based at least in part on the level of activity at the second end. In one embodiment, the energy level of a first-end audio signal is me... | 11/16/2010 |
| 7808937 | Variable interference cancellation technology for CDMA systems An interference canceller comprises a composite interference vector (CIV) generator configured to produce a CIV by combining soft and/or hard estimates of interference, an interference-cancelling operator configured for generating a soft-projection operator, and a s... | 10/05/2010 |
| 7808936 | Systems and methods for facsimile echo cancellation The present invention is related to methods and systems for reducing or canceling echoes during fax communications. In an embodiment, during a fax call, a first fax signal from a first fax device intended for a second fax device is detected. Based at least in part o... | 10/05/2010 |
| 7778209 | Passive echo cancellation device and signal transmission method thereof The present invention refers to a passive echo cancellation device for use in a full-duplex communication system and its signal transceiving method. The full-duplex communication system comprises a transmitting end for sending a transmit signal to a wiring interface... | 08/17/2010 |
| 7778210 | Bridge circuit to suppress echoes in communication devices Bridge circuit for echo suppression for a reception signal of a communication device connected to a transmission line, to which can be supplied a reception signal received via the transmission line and a transmission signal to be transmitted by the communication dev... | 08/17/2010 |
| 7764634 | Suppression of acoustic feedback in voice communications Suppressing one or more frequency ranges of a signal prevents the occurrence of feedback in a voice data communications application. A system recognizes a frequency range in a signal where feedback occurs, or anticipates a frequency range where feedback is anticipat... | 07/27/2010 |
| 7760673 | Selectively adaptable far-end echo cancellation in a packet voice system A packet voice transceiver adapted to reside at a first end of a communication network and to send an ingress communication signal comprising voice packets to, and receive an egress communication signal comprising voice packets from, a second packet voice transceive... | 07/20/2010 |
| 7760672 | Method and device for the echo compensation of a reception signal A method and a device are provided for the echo compensation of a reception signal, a transmission signal being composed of a plurality of transmission subsignals which are generated in a corresponding plurality of signal paths, and a transmission combination signal... | 07/20/2010 |
| 7724693 | Network dependent signal processing A system processes signals exchanged between a near end terminal and a far end terminal over a communication path. The system selects the processing characteristics of a near end terminal based on characteristics of the communication path. The communication path may... | 05/25/2010 |
| 7720015 | Receiver ADC clock delay base on echo signals A device and method for a full-duplex transceiver is disclosed. The transceiver includes a transmitter DAC coupled to a transmission channel. The transmit DAC converting a digital transmission signal into an analog transmission signal. The transceiver further includ... | 05/18/2010 |
| 7656827 | Apparatus for, and method of, reducing noise in a communications system A communication line having a plurality of twisted wire pairs connects a plurality of transmitters, one transmitter at each end of each twisted wire pair, with a plurality of receivers, one receiver at each end of each twisted wire pair. Each receiver receives a com... | 02/02/2010 |
| 7649856 | System and method for transmitting and receiving wideband speech signals The system for transmitting and receiving a wideband speech signal includes an A/D converter for receiving an analog speech signal to convert it into a digital speech signal, a transmitter analysis filter for receiving the digital speech signal and dividing it into ... | 01/19/2010 |
| 7590077 | Canceller device and data transmission system Disclosed is a canceller device comprising a subcanceller for compensating the sampling phase shift of a plurality of analog-to-digital convert circuits for receiving a common input analog signal, converting the analog signal into digital signals responsive to respe... | 09/15/2009 |
| 7583621 | Method and apparatus for suppressing echo cancelling in a packet switched network A method, or corresponding apparatus, assumes a call is a Voice Band Data (VBD) call. The method disables a local echo canceller and transmits a tone that disables distal echo canceller(s) along a communications path across which the call is communicated. After disa... | 09/01/2009 |
| 7573839 | Line driver for an adaptive hybrid circuit A second output transmission signal (“TX2”) added to a line driver is a scaled version of the main output transmission signal (“TX1”). TX2 is scaled from TX1 by a variable scale factor K. An adaptive hybrid circuit... | 08/11/2009 |
| 7554933 | Echo cancellation device for full duplex communication systems An echo cancellation apparatus of a transceiver in a full duplex communication system is disclosed. The full duplex communication system includes a transmitter section for transmitting a transmit signal and a receiver section for receiving a receive signal. The echo... | 06/30/2009 |
| 7502336 | Multi-carrier communication using adaptive tone-pruning 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 calc... | 03/10/2009 |
| 7502337 | Intelligent voice network monitoring using echo cancellation statistics Monitoring voice quality passively using line echo cancellation data across a telecommunications network and reporting monitoring data to a central network management system. Network is monitored for potential voice quality issues for pro-active isolation of problem... | 03/10/2009 |
| 7480262 | Telephone terminal, telephone system using telephone terminal and control method of telephone terminal A telephone terminal includes a receiving detector which detects a signal level of a receiving voice signal incoming from the main device, a transmitting detector which detects a signal level of a transmitting voice signal to transmit it to the main device, an adjus... | 01/20/2009 |
| 7468957 | Canceller circuit and controlling method A canceller circuit includes a subtractor, receiving an analog received signal and a replica signal of noise (e.g., echo and/or crosstalk), for carrying out subtraction on the received signal and the replica signal in a continuous time analog domain, an analog-to-di... | 12/23/2008 |
| 7460499 | Modulation noise estimation mechanism An on-chip reduced complexity modulation noise estimation mechanism for performing nonlinear signal processing to analyze modulation noise to determine whether a semiconductor device under test complies with the performance criteria set by specifications or a standa... | 12/02/2008 |
| 7460498 | System and method for detecting anomalies along telecommunication lines An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a ... | 12/02/2008 |
| 7457258 | Tunable filter to facilitate communications Systems and methods are described herein for changing the frequency response of a filter, such as a hybrid circuit. One or more tunable components are adjustable to provide the hybrid circuit with a frequency response corresponding to the characteristics of an assoc... | 11/25/2008 |
| 7450528 | Method and apparatus for performing echo suppression An echo suppression technique is provided in which speech sample energies are collected and accumulated over predetermined time frames. From this, a peak aggregate value and time delay are noted. This peak is generated by mathematical correlation between the histori... | 11/11/2008 |
| 7443812 | Voice and data exchange over a packet based network with AGC A signal processing system which discriminates between voice signals and data signals modulated by a voiceband carrier. The signal processing system includes a voice exchange, a data exchange and a call discriminator. The voice exchange is capable of exchanging voic... | 10/28/2008 |
| 7440411 | Echo reduction to achieve a requested service A method for determining transmission characteristics over a first communication path and a second communication path, while an amount of the signal transmitted over the first communication path couples into the second communication path. In case of excess of capaci... | 10/21/2008 |
| 7436787 | Transceiver for full duplex communication systems A transceiver in a full duplex communication system includes a transmitting circuit coupled to a channel for transmitting a transmit signal to the channel, a cancellation signal generator coupled to the channel for generating a cancellation signal according to the t... | 10/14/2008 |
| 7433665 | Apparatus and method for converting single-ended signals to a differential signal, and transceiver employing same A communication circuit for an Ethernet or other network transceiver includes a first sub-circuit having a first input which receives a composite differential signal including first and second differential signal components, a second input which receives a different... | 10/07/2008 |
| 7426198 | Method and apparatus for performing spatial-division multiple access A method and apparatus for performing spatial-division multiple access within a communication system is provided herein. During operation, nodes will return null subspace information along with their channel subspace information. The null subspace is similar to the ... | 09/16/2008 |
