Abstract: Techniques for multi-party conferencing are provided. A plurality of audio streams is received from a plurality of conference-enabled devices associated with a conference call. Each audio stream includes a corresponding encoded audio signal generated based on sound received at the corresponding conference-enabled device. Two or more of the audio streams are selected based upon an audio characteristic (e.g., a loudness of a person speaking). The selected audio streams are transmitted to each conference-enabled device associated with the conference call. At each conference-enabled device, the selected audio streams are decoded into a plurality of decoded audio streams, the decoded audio streams are combined into a combined audio signal, and the combined audio signal is played from one or more loudspeakers to be listened to by a user.

Abstract: Embodiments of an RF receiver front-end are presented herein. In an embodiment, the RF receiver front-end comprises a transconductance LNA, a passive mixer, and a gm-enhanced common-gate buffer. The transconductance LNA is configured to convert an RF voltage signal to an RF current signal and provide the RF current signal at an output. The passive mixer is coupled to the output of the transconductance LNA and is configured to mix the RF current signal with a local oscillator signal to produce a frequency translated current signal. The gm-enhanced common-gate buffer is configured to receive the frequency translated current signal at an input and convert the frequency translated current signal to a frequency translated voltage signal. In an embodiment, the input of the gm-enhanced common-gate buffer is configured to provide a low input impedance to limit a voltage swing of the frequency translated current signal.

Abstract: A system and method that provide reduced latency in a video signal processing system. Various aspects of the present invention may comprise transmitting a first video information stream representative of a unit of video information. For example, the transmitted first video information stream may correspond to a video channel. A second video information stream representative of the unit of video information may be transmitted simultaneously with the first video information stream. The second video information stream may also, for example, correspond to the video channel. Various aspects of the present invention may comprise receiving a plurality of simultaneously transmitted video information streams. A video information stream of the plurality of received video information streams may be identified that, when processed, is expected to result in the lowest latency in presenting the unit of video information to the user. The identified video information stream may then be so processed.

Abstract: Techniques for loudspeaker localization are provided. Sound is received from a loudspeaker at a plurality of microphone locations. A plurality of audio signals is generated based on the sound received at the plurality of microphone locations. Location information is generated that indicates a loudspeaker location for the loudspeaker based on the plurality of audio signals. Whether the generated location information matches a predetermined desired loudspeaker location for the loudspeaker is determined. A corrective action with regard to the loudspeaker is enabled to be performed if the generated location information is determined to not match the predetermined desired loudspeaker location for the loudspeaker.

Abstract: Embodiments of a multi-band voltage controlled oscillator (VCO) are provided herein. The multi-band VCO is configured to adjust a frequency of an output signal based on an input signal. The multi-band VCO includes a tank module, an active module, and a control module. The tank module includes a parallel combination of a capacitor and an inductor. The active module includes a pair of cross-coupled transistors that are configured to provide a negative conductance that cancels out a positive conductance associated with the tank module. To improve the phase noise associated with the multi-band VCO, the control module is configured to adjust the body voltage of the cross-coupled transistors.

Abstract: A method and apparatus is disclosed to optimize one or more operational parameters of a communications transmitter to reduce undesirable noise and/or interference embedded within a transmitted communications signal resulting from one or more imperfections. A baseband processor selects one or more calibration signals to allow for optimization of one or more statistical parameters. A calibration module determines the one or more statistical parameters of the transmitted communications signal in response to the one or more calibration signals. The calibration module provides one or more compensation parameters indicative of the one or more statistical parameters to the baseband processor module. The baseband processor adjusts the one or more operational parameters of the communications transmitter in response to the one or more compensation parameters.

Abstract: In an embodiment, an analog to digital converter (ADC) has a dynamic power circuit. The ADC has a track-and-hold circuit with an output and a track mode. The ADC also has a comparator with an input. A preamplifier is coupled between the track-and-hold output and the comparator input. At least one of a preamplifier current and a comparator current are limited during the track mode to reduce ADC power consumption.

Abstract: A method and system of estimating frequency offset at a subscriber station is disclosed. One method includes the subscriber station receiving a composite signal, wherein the composite signal includes multi-carrier signals transmitted from a plurality of base stations. The subscriber station selects a first pair of multi-carrier symbols of the composite signal, wherein each multi-carrier symbol of the first pair of multi-carrier symbols includes a pilot sub-carrier having a common sub-carrier index. The subscriber station selects a second pair of multi-carrier symbols of the composite signal, the second pair having different symbol indices than the first pair, but having a same symbol index separation, wherein each of the multi-carrier symbols of the second pair of multi-carrier symbols includes a pilot sub-carrier having a second common sub-carrier index.

Abstract: A system and method in a wireless communication network access point for configuring operation of the access point. Various aspects of the present invention may comprise determining communication configuration information desired for the access point. Communication configuration information may, for example, correspond to a particular communication protocol. Communication configuration information may, for example and without limitation, comprise information selecting one or more particular modules or specifying operation of one or more modules. Communication configuration information may, for example, comprise executable code. Desired communication configuration information may, for example, be determined through communication with a user or other networked device. Determined communication configuration information may then be acquired (e.g., from a networked server or other device). Such acquisition may, for example, comprise receiving solicited or unsolicited communication configuration information.

Abstract: A system and method for adjusting a level of compression for endpoint devices. Endpoint devices in a network can stream audio/video traffic over a network. Such a connection between the endpoint devices can be reserved with guarantees of latency being obtained. Latency guarantees across multiple intermediary switches can be used to define a compression level for the end devices.

Abstract: An RFIC includes first and second RF sections, first and second PHY processing modules, first and second upper layer processing modules, and memory. When the RFIC is in a first receive mode, the first RF section, the first PHY processing module, and the first upper layers processing module convert a first inbound RF signal into a first inbound audio signal in accordance with a first wireless communication protocol. When the RFIC is in a second receive mode, the second RF section, the second PHY processing module, and the second upper layers processing module convert a second inbound RF signal into a second inbound audio signal in accordance with a second wireless communication protocol. The memory stores the first and second inbound audio signals. The first PHY processing module retrieves, based on the receive mode, the first or second inbound audio signal from the memory and converts the first or second inbound audio signal into a first or second inbound analog audio signal.

Abstract: Aspects of a method and system for improved communication network setup utilizing extended terminals are presented. Aspects of the method may comprise configuring a wireless Ethernet terminal functioning as a client station by a configurator via a network. The configured wireless Ethernet terminal may wirelessly receives information from a wireless station, and communicate the wirelessly received information to at least one of a plurality of wired stations via at least one of a plurality of corresponding wired interfaces. Aspects of the system may comprise a collocated device functioning as a configurator that configures a wireless Ethernet terminal functioning as a client station via a network. The configured wireless Ethernet terminal may wirelessly receives information from a wireless station, and communicate the wirelessly received information to at least one of a plurality of wired stations via at least one of a plurality of corresponding wired interfaces.

Abstract: A microprocessor system architecture is disclosed which allows for the selective execution of programmed ROM microcode or, alternatively, RAM microcode if there has been a correction or update made to the ROM microcode originally programmed into the system. Patched or updated RAM microcode is utilized or executed only to the extent of changes to the ROM microcode, otherwise the ROM microcode is executed in its normal fashion. When a patch is received, it is loaded into system RAM along with instructions or other appropriate signals to direct the execution of the patched or updated microcode from RAM instead of the existing ROM microcode. Various methods are presented for selecting the execution of the appropriate microcode depending upon whether there have been changes made to it.

Abstract: A system for reordering frames may include at least one processor that enable receiving of an out-of-order frame via a network subsystem. The at least one processor may enable placing data of the out-of-order frame in a host memory, and managing information relating to one or more holes resulting from the out-of-order frame in a receive window. The at least one processor may enable setting a programmable limit with respect to a number of holes allowed in the receive window. The out-of-order frame is received via a TCP offload engine (TOE) of the network subsystem or a TCP-enabled Ethernet controller (TEEC) of the network subsystem. The network subsystem may not store the out-of-order frame on an onboard memory, and may not store one or more missing frames relating to the out-of-order frame. The network subsystem may include a network interface card (NIC).

Abstract: Method and apparatus for processing location service messages in a satellite position location system is described. In one example, a mobile receiver includes a satellite signal receiver, wireless circuitry, and at least one module. The satellite signal receiver is configured to receive satellite positioning system signals, such as Global Positioning System (GPS) signals. The wireless circuitry is configured to communicate location service messages between the mobile receiver and a server through a cellular communication network. The location service messages may include any type of data related to A-GPS operation, such as assistance data, position data, request and response data, and the like. The at least one module is configured to provide a user-plane interface and a control-plane interface between the satellite signal receiver and the wireless transceiver.

Abstract: An apparatus for maintaining synchronization with a plurality of asynchronous communication links includes a first counter that generates a first local network clock, and a second counter that generates a second local network clock. The apparatus also includes an offset controller coupled with the first counter and coupled with the second counter, the offset controller configured to load a current network clock value of a first network clock of a first communication link into the first counter, and to load a current network clock value of a second network clock of a second communication link into the second counter. The apparatus further includes a drift controller coupled with the first counter and with the second counter, the drift controller configured to correct a drift between the first local network clock and the first network clock and to correct a drift between the second local network clock and the second network clock.

Abstract: One embodiment of the present invention provides a system that accommodates different clock frequencies in an EPON. The system receives a signal from the OLT at the ONU and derives an OLT clock. The system also maintains a local clock. The system further receives from the OLT an assignment for an upstream transmission window, during which the ONU can transmit an upstream data burst to the OLT based on the local clock. The system adjusts the number of bits of the data burst without affecting the payload data carried in the data burst, thereby allowing the data burst to fit properly within the upstream transmission window and compensating for frequency differences between the local clock and the OLT clock. The system transmits the data burst based on the local clock in the upstream transmission window.

Abstract: A system and method for controlling a physical layer device attached to a media access control interface for energy efficient Ethernet. Detecting of a condition that is conducive to a change in a link rate can be performed at either link partner. In one embodiment, a control message based on the detection can be sent to a physical layer device via a media access control layer interface to effect a link rate change in the physical layer device.

Abstract: A technique for performing frame erasure concealment (FEC) in a speech decoder. One or more non-erased frames of a speech signal are decoded in a block-independent manner. When an erased frame is detected, a short-term predictive filter and a long-term predictive filter are derived based on previously-decoded portions of the speech signal. A periodic waveform component is generated using the short-term predictive filter and the long-term predictive filter. A random waveform component is generated using the short-term predictive filter. A replacement frame is generated for the erased frame. The replacement frame may be generated based on the periodic waveform component, the random waveform component, or a mixture of both.

Abstract: A two way communication system is adapted to reduce latency while the communications system is operating in a low power mode. The two way communication system includes a local host having a first primary communication channel and a secondary out of band transmitter; and customer premise equipment having a primary communication channel for communicating with the first primary communication channel of the local host and a secondary low power out of band receiver that receives out of band control signals from the out of band transmitter during low power operation of the customer premise equipment.