Abstract: A method is disclosed for interference mitigation which can include receiving a signal having a data component, an interfering component and a time period and creating a first plurality of digitized data that represents at least a portion of the interfering component. The method can also include generating a polynomial equation that is related to the at least a portion of the interfering component and generating a second plurality of digital data that represents a data vector of the received signal. The method can further subtract the polynomial equation from the received signal to cancel at least a portion of the interfering component to provide an interference mitigated signal representing the data component.

Abstract: In some embodiments a method is disclosed for detecting periodic interference and predicting future interference times. The method can include detecting an arrival time of a first occurrence of interference and detecting an arrival time of a second occurrence of interference. The method can include transmitting preemptive interference mitigation control signals that anticipate future arrival times of interference. A system is disclosed that includes a periodicity detector, an interference profiler and a mitigation control module. The system can provide interference mitigation features to a data recovery system. Other embodiments are disclosed.

Abstract: An apparatus and method for WGIO phase modulation are described. In one embodiment, the method includes the receipt of a high-speed data stream, encoded according to an 8b/10b code. Once received, a symbol rate of the data stream is reduced by a predetermined amount. Finally, once the symbol rate is reduced, a square wave carrier is phase modulated, using the reduced data rate data stream to generate a WGIO signal having double side band spectrum distributed either side of the square wave carrier. Accordingly, in one embodiment, a 3GIO signal may be phase modulated in order to fall within a spectrum that is not currently occupied by a wireless protocol, including, for example, Wireless Local Area Network (WLAN), Wireless Wide Area Networks (WWAN), global positioning systems (GPS), or the like in order to prevent interference therebetween.

Abstract: A wireless device that covers the wireless communication frequency bands incorporates a frequency domain monitor to adaptively modify the time domain waveform of a clock signal to suppress even order harmonics caused by asymmetry in the driver or load. Even order harmonics may be avoided where clock shifting is not possible and when combined with clock shifting the wireless device allows avoidance of both harmonics when two harmonics fall in-band of the receiver.

Abstract: Receivers for real-time adjacent channel characterization, along with associated systems and methods, are generally provided.

Abstract: A method and apparatus including, in some embodiments, a first conductor plane, a first array of periodically distributed co-planar conductive patches, each patch in the first array being connected to the first conductor plane, a second conductor plane separated from and parallel to the first conductor plane, and a second array of periodically distributed co-planar conductive patches, with each patch in the second array being connected to the second conductor plane, and where the first array and second array of periodically distributed co-planar elements are distributed in an overlapping and alternating adjacency.

Abstract: An apparatus to process a data word includes an encoder to receive and encode the data word, wherein a power spectral density of an encoded word is lowered across a specific frequency band relative to a power spectral density of the data word. A data transmission bus is coupled with the encoder and receives the encoded word, wherein a clock frequency of the data transmission bus is selected based on the specific frequency band. A decoder coupled with the data transmission bus receives and decodes the encoded word, wherein the data word is obtained from the encoded word.

Abstract: Briefly, in accordance with an embodiment of the invention, an apparatus to suppress surface currents is provided. The apparatus may include very high frequency (VHF) antenna and a frequency selective surface (FSS) structure adjacent to the VHF antenna. The FSS structure may include a ground plane, a first conductive via coupled to the ground plane, and a first conductive plate coupled to the first conductive via, wherein the FSS structure has a band gap frequency in the VHF band.

Abstract: Interference within a wireless apparatus is mitigated by adjusting one or more transmission characteristics associated with an interconnect of the apparatus. In at least one embodiment, the interconnect is a PCI Express interconnect.

Abstract: A slot antenna having one or more electronic components attached across a slot of the antenna to provide either an RF open or an RF short based on the bias supplied to a control terminal of the electronic component. The antenna is tunable via the RF open or short across the slot.

Abstract: An antenna system for a computing device operable in multiple communication modes.

Abstract: Methods and apparatuses for encoding speech signals in the presence of interference that accurately establishes a speech signal value subsequent to lost transmission packets. For one embodiment of the present invention, the initial bits of a speech transmission packet are encoded using a PCM encoding scheme and the remaining bits are encoded using a CVSD encoding scheme. Upon encoding, the initial bits of each packet, the instantaneous value of the voltage as derived from CVSD coder/decoder at the transmitter is encoded using PCM coding rather than CVSD coding. At the receiver, each packet is decoded independently using the PCM-encoded bits, rather than the terminal value of a preceding packet, to define a starting value. The PCM encoded bits of a valid packet are used to reestablish the signal value, thus avoiding packet-to-packet error extension in the presence of burst interference.

Abstract: An impedance plane has an elongated strip ship. The impedance plane approximates a magnetic conductor within a particular frequency band. A sector antenna is coupled to one side of the impedance plane. The sector antenna has a planar form factor with dimensions contained within the elongated strip. The sector antenna has a radiation pattern in the particular frequency band that is flared out from the impedance plane at a particular angle.

Abstract: Briefly, in accordance with an embodiment of the invention, a frequency selective surface (FSS) structure and a method is provided. The FSS structure may include a first conductive plate over a first surface of a substrate. The FSS structure may further include a first printed inductor over the first surface of the substrate and coupled to the first conductive plate. The method may include forming a frequency selective surface by patterning a first conductive material over a surface of a substrate to form a printed inductor.

Abstract: An antenna system for a computing device operable in multiple communication modes.

Abstract: A method and an apparatus for passive interference cancellation are provided. The apparatus includes a first and second radio operating on a same frequency band, a first and second coupler, and a first phase shifter. The first radio includes a first radio transceiver and a first radio antennae. The second radio includes a second radio antennae located a predetermined distance from the first radio antennae. A first coupler and second coupler are adjusted according to a coupling loss between the antennas. The first radio transceiver transmits a first signal. The first signal is divided by the first coupler to a first portion and a second portion. The first portion moves through the first radio antennae and is received by the second radio antennae. The second portion moves through the first phase shifter. Both portions of the first signal meet and cancel to achieve a specified isolation between the radios.

Abstract: Briefly, in accordance with an embodiment of the invention, a frequency selective surface (FSS) structure and a method is provided. The FSS structure may include a first conductive plate over a first surface of a substrate. The FSS structure may further include a first printed inductor over the first surface of the substrate and coupled to the first conductive plate. The method may include forming a frequency selective surface by patterning a first conductive material over a surface of a substrate to form a printed inductor.

Abstract: An apparatus and method for WGIO phase modulation are described. In one embodiment, the method includes the receipt of a high-speed data stream, encoded according to an 8b/10b code. Once received, a symbol rate of the data stream is reduced by a predetermined amount. Finally, once the symbol rate is reduced, a square wave carrier is phase modulated, using the reduced data rate data stream to generate a WGIO signal having double side band spectrum distributed either side of the square wave carrier. Accordingly, in one embodiment, a 3GIO signal may be phase modulated in order to fall within a spectrum that is not currently occupied by a wireless protocol, including, for example, Wireless Local Area Network (WLAN), Wireless Wide Area Networks (WWAN), global positioning systems (GPS), or the like in order to prevent interference therebetween.

Abstract: Methods and apparatuses for encoding speech signals in the presence of interference that accurately establish a speech signal value subsequent to lost transmission packets. For one embodiment of the present invention, the initial bits of a speech transmission packet are encoded using a PCM encoding scheme and the remaining bits are encoded using a CVSD encoding scheme. Upon encoding, the initial bits of each packet, the instantaneous value of the voltage as derived from CVSD coder/decoder at the transmitter is encoded using PCM coding rather than CVSD coding.

Abstract: An apparatus to process a data word includes an encoder to receive and encode the data word, wherein a power spectral density of an encoded word is lowered across a specific frequency band relative to a power spectral density of the data word. A data transmission bus is coupled with the encoder and receives the encoded word, wherein a clock frequency of the data transmission bus is selected based on the specific frequency band. A decoder coupled with the data transmission bus receives and decodes the encoded word, wherein the data word is obtained from the encoded word.