| Patent application number | Description | Published |
|---|
| 20080240318 | Recovering precoded data using a Mueller-Muller recovery mechanism - In one embodiment, the present invention includes an apparatus having a digital signal processor (DSP) coupled to receive a digitized signal. The DSP may be controlled to perform a timing recovery mechanism that implements a Mueller and Müller (MM)-based algorithm to generate a sensor output responsive to the digitized signal, where the incoming signal is non-linearly precoded in a transmitter from which the signal is received. Other embodiments are described and claimed. | 10-02-2008 |
| 20080240412 | Maintaining convergence of a receiver during changing conditions - In one embodiment, the present invention includes an apparatus having an automatic gain control (AGC) stage to receive an input signal from a communication channel physical medium, a first local gain stage coupled to an output of the AGC stage, an equalizer coupled to an output of the first local gain stage, an echo canceler to receive local data to be transmitted along the communication channel physical medium, and a second local gain stage coupled to an output of the echo canceler. Other embodiments are described and claimed. | 10-02-2008 |
| 20080297383 | Calibrating an analog component using digital feedback information - In one embodiment, the present invention includes an apparatus having an analog front end to receive a signal from a communication channel physical medium, an analog-to-digital converter (ADC) coupled to an output of the analog front end to digitize the received signal, and a digital signal processor (DSP) coupled to receive an output signal of the ADC and to process the digitized signal to generate a decision output and an error signal, and a feedback path to provide the error signal from the DSP to the ADC for use in calibration. Other embodiments are described and claimed. | 12-04-2008 |
| 20090245448 | Adaptation of a digital receiver - A method and apparatus to improve adaptation speed of a digital receiver is presented. The receiver includes an equalizer to initiate adaptation to a transmission channel responsive to a first control signal, a slicer coupled to the equalizer to generate symbol decisions based at least in part on an equalized digital signal, logic to receive the symbol decisions and generate a selection signal when a lock onto a training sequence of the symbol decisions occurs, first and second phase detectors to detect phase errors of the equalized digital signal and an incoming digital signal, respectively, and a clock generator to generate a clock signal responsive to one of the first and second phase errors. | 10-01-2009 |
| 20100014566 | METHOD AND APPARATUS FOR A 10GBASE-T SMALL FORM FACTOR PLUGGABLE (SFP+) MODULE - A 10GBase-T Small Form Factor Pluggable (SFP+) module. The 10GBase-T SFP+ module has a 10GBase-T physical layer (PHY) module with a communication interface and an interface module with SFP+ high speed serial electrical interface (SFI). During receive operation, 10GBase-T data is received from a link partner via the communication interface. The 10GBase-T PHY module processes the 10GBase-T data into intermediate data. The interface module receives the intermediate data from the 10GBase-T PHY module, processes the intermediate data into 10GBase-R data, and outputs the 10GBase-R data to a SFI host via the SFI. During transmit operation, 10GBase-R data is transmitted by a SFI host via the SFI. The interface module processes the 10GBase-R data into intermediate data. The 10GBase-T PHY receives the intermediate data from the interface module, processes the intermediate data into 10GBase-T data, and outputs the 10GBase-T data to a link partner via the communication interface. | 01-21-2010 |
| 20100153032 | Probing analog signals - A device, comprising a monitoring slicer adapted to repeatedly sample an internal analog signal to provide a sequence of digital outputs indicating a result of a comparison of the level of the internal analog signal to a reference voltage and an operative unit adapted to perform a task of the device and provide a result without using digital outputs from the monitoring slicer. | 06-17-2010 |
| 20100166125 | SYSTEMS AND METHODS FOR ENHANCING PERFORMANCE OF A LOW-POWER TRANSCEIVER - According to some embodiments, a digital switching distortion canceller may receive Ethernet data along with an Ethernet class AB transceiver switching signal. A combiner may combine the output of the digital switching distortion canceller with a digital high switching distortion signal to generate a corrected output signal. According to other embodiments, a switching-signal-to-voltage-converter receives an Ethernet class AB transceiver switching signal and generates a common-mode compensation voltage adjustment. An analog combiner may combine the common-mode compensation voltage adjustment with a noisy common-mode signal to generate a stabilized common-mode voltage. Note that reduction of switching-related distortion might be achieved in the digital domain, in the analog domain, or in both domains according to the embodiments described herein. | 07-01-2010 |
| 20100232492 | Transmitter control in communication systems - Techniques are described to adaptively adjust the equalizer settings of each transmitter in a transmitter-receiver pair. The transmitter-receiver pair can be used at least with implementations that comply with 40GBASE-CR4 or 100GBASE-CR10. For implementations that comply with 40GBASE-CR4, equalizer settings of four transmitters may be independently established. | 09-16-2010 |
