Abstract: A method is provided for automatically optimizing parameter selection in a communication system having one or more channels for transmitting and receiving signals by the steps of: receiving a signal from a channel; characterizing impairments in the channel while gathering statistics using the received signal; analyzing the impairments to obtain recommendations for parameter modifications for improved performance; and modifying the parameters based on the recommendations. Other systems and methods are disclosed.

Abstract: A collated wireless local area network/Bluetooth (WLAN/BT) device avoids radio interference between the two wireless systems by collaborative coexistence mechanisms. The collocated WLAN/BT device and coexistence methods include time division multiplexing based on various operating states of the collocated WLAN and BT systems, respectively. Such operating states include the transmission of low priority WLAN and BT data signals during WLAN and BT periods, the sleep mode of the collocated WLAN system, transmission of high priority data signals from the collocated BT system during time division multiplexed WLAN and BT periods, the transition of the collocated BT system from an active state to an idle state, and the transition of the collocated WLAN system from an active state to an idle state.

Abstract: The present invention generally to a multimode terminal including a wireless local area network (WLAN) system and a Bluetooth system that avoids radio interference between the two systems by collaborative coexistence methods that include time-sharing, combined frequency and time-sharing, and forward looking combined frequency and time-sharing between the WLAN system and the Bluetooth system. The coexistent multimode terminal and the method of coexistence provide WLAN transmission/receptions that are not impacted when there is no Bluetooth traffic, Bluetooth transmissions/receptions that are not impacted when there is no WLAN traffic, Bluetooth and WLAN transmissions/receptions that are provided fair access to the medium when both Bluetooth and WLAN traffic are present, and high priority Bluetooth traffic, for example, voice traffic, that has priority over non-high WLAN traffic.

Abstract: A method is provided to automatically identify noise events in a channel of a communication system comprising the steps of: receiving an input signal from the channel; determining the mean energy of the input signal; determining the recent energy of the input signal; identifying a beginning of the noise event when the recent energy is greater than the product of the mean energy and a predefined first threshold; identifying an end of a noise event when the recent energy is less that the product of the mean energy and a predefined second threshold; and providing for output the beginning of the noise event and the end of the noise event. Other systems and methods are disclosed.

Abstract: A method is disclosed for providing data for automatically estimating channel performance if different parameters of a Reed-Solomon (RS) code are used in a communication system while transmission is occurring in the communication system without changing the current Reed-Solomon (RS) code parameters.

Abstract: The detection of symbols in digital burst transmissions is improved by an equalizer (30) that initializes the values of only a subset of its filter coefficients (C, D), and thereafter begins to decode the symbols using an iterative, decision directed algorithm that determines all of its filter coefficients. This can advantageously provide an acceptable trade-off between computational complexity and equalizer performance.

Abstract: A home video network, and a home video and data network, utilizing wireless protocol communications over coaxial cable (CX) are disclosed. In the home video network, a main network station (10) includes video processing functionality, such as one or more of a DVD player, personal video recorder (PVR), and a set-top box (STB) for cable or satellite television reception. The main network station (10) also includes a matched splitter (27) that receives coaxial cable (CX) inputs, and provides low-pass filtered and high-pass filtered output. The low-pass filtered output (LF) corresponding to video signals is provided to the video processing functionality (20) and the high-pass filtered output (HF) corresponding to wireless protocol communications is provided to a wireless access point function (22).

Abstract: A cable network includes a cable modem termination system at the head end of a cable network, which transmits digitized video data and digitized data, according to a Data Over Cable System Interface Standard (DOCSIS), from sources external to the cable network downstream to a cable subscriber's set-top box over a selected downstream channel. The set-top box includes a single downstream tuner for selecting the digitized video data and DOCSIS data over the selected downstream channel.

Abstract: An improved receiver is provided having a voltage controlled amplifier for adjusting the gain of a first input signal, a comparator and integrator for controlling the voltage controlled amplifier and connected to the output of the voltage controlled amplifier and connected to a second input signal, a cross-correlator connected to the output of the voltage controlled amplifier and the second input signal, first auto correlator connected to the output of the voltage controlled amplifier, a second auto correlator connected to the second input signal, a first mixer connected to the cross-correlator and the output of the voltage controlled amplifier for providing a correction signal to the signal output by the second auto correlator, and a second mixer connected to the cross-correlator and the second input signal for providing a correction signal to the signal output by the first auto correlator.

Abstract: A communication network is provided having a wireless connection and a coax connection comprising a network access point coupled to the wireless connection and the coax connection; a first station coupled to the wireless connection; and a second station coupled to the coax connection. Other systems and methods are disclosed.

Abstract: A method is disclosed for providing data for automatically estimating channel performance if different parameters of a Reed-Solomon (RS) code are used in a communication system while transmission is occurring in the communication system without changing the current Reed-Solomon (RS) code parameters comprising the steps of: receiving an input signal from the channel; processing the input signal in a receiver in the communication system, the receiver having a Reed Solomon decoder having an output of RS symbols; choosing a virtual RS block code size; determining a RS number of errors data by determining how many RS symbols in a sequence of RS symbols the size of the virtual RS block code size are erred RS symbols; determining a RS sequence of errors data by determining how many occurrences there are of erred RS symbols that occur sequentially in the sample and the number of sequential erred RS symbols in each occurrence; and outputting the RS number of errors data and RS sequence of errors data.

Abstract: A system is provided to automatically estimate performance of a receiver for receiving input signals, the input signals having a carrier frequency and a baud rate, from a channel in a communication system and the effect of highly correlated noise cancellation on performance of the receiver, while no active transmission is occurring on the channel, comprising: a digital front end in the receiver for receiving samples of the input signals; a predictor coupled to the digital front end for predicting highly correlated noise in a second sample of the input signal; and a subtraction unit coupled to the predictor for subtracting the predictor output from the second sample to determine residual noise in the second sample. Other systems and methods are disclosed.

Abstract: A method is provided for automatically improving throughput of an active channel in a communication system comprising: receiving input from one or more modules that identify and characterize impairments in the active channel; monitoring the input to track changes in the impairments; and changing channel parameters to improve throughput on the channel based on the changes in the impairments. Other systems and methods are disclosed.

Abstract: A method is provided for automatically optimizing parameter selection in a communication system having one or more channels for transmitting and receiving signals comprising the steps of: receiving a signal from a channel; characterizing impairments in the channel while gathering statistics using the received signal; analyzing the impairments to obtain recommendations for parameter modifications for improved performance; and modifying the parameters based on the recommendations. Other systems and methods are disclosed.

Abstract: A method is provided to provide data to automatically estimate channel performance in a communication system if a different order constellation is used comprising the steps of: receiving an input signal from the channel; passing the input signal to a slicer having an output signal; determining signal noise by taking the difference between the input signal and output signal; identifying a beginning of a noise event when the signal noise is greater than a predefined first threshold; identifying an end of a noise event when the signal noise is less than a predefined second threshold; and providing for output the beginning of the noise event and the end of the noise event. Other systems and methods are disclosed.

Abstract: A method is provided to automatically identify noise events in a channel of a communication system comprising the steps of: receiving an input signal from the channel; determining the mean energy of the input signal; determining the recent energy of the input signal; identifying a beginning of the noise event when the recent energy is greater than the product of the mean energy and a predefined first threshold; identifying an end of a noise event when the recent energy is less that the product of the mean energy and a predefined second threshold; and providing for output the beginning of the noise event and the end of the noise event. Other systems and methods are disclosed.