| Patent application number | Description | Published |
|---|
| 20080204040 | Systems and arrangements for determining properties of a transmission path - One disclosed method is to automate testing for transmission path impedance conditions on a circuit board. The method can include transmitting a plurality of electrical pulses on a transmission path utilizing an on-board transmitter, the electrical pulses can have a time period and the transmission path can have impedance mismatches to reflect energy of the electrical pulse back towards the on-board transmitter. After the pulse is transmitted, a voltage of the reflected energy can be compared with a reference voltage at different time intervals. A single bit can be acquired for each voltage/time sample and the bits can be sequentially stored in a shift register. The digital data that is stored in the shift register can be compared to existing data in memory to determine a quality of the transmission path of the printed circuit board. | 08-28-2008 |
| 20080238482 | Transmitter swing control circuit and method - disclosed herein are embodiments of a swing compensation scheme for compensating errors in a transmitter driver. | 10-02-2008 |
| 20090167402 | Dual barrel receiver equalization architecture - Methods and apparatus relating to dual barrel receiver equalization architectures are described. In an embodiment, a receiver logic may include an amplifier and two comparators to equalize frequency components of a received signal. The receiver logic may further include offset adjustment (or cancelation) logic to generate an offset adjustment (or cancelation) signal coupled to the amplifier. Other embodiments are also described. | 07-02-2009 |
| 20090219052 | Transmitter swing control circuit and method - Disclosed herein are embodiments of a swing compensation scheme for compensating errors in a transmitter driver. | 09-03-2009 |
| 20090248945 | NOISE REDUCING METHODS AND CIRCUITS - In some embodiments, a circuit is provided with a transmitter to generate switching noise during clock events when no transition occurs to reduce data dependent switching noise. | 10-01-2009 |
| 20090323794 | Transmitter Equalization Method and System - A method is provided to determine transmitter equalization coefficients and a number of transmitter equalization taps. The method may include transmitting a first signal pattern at a first frequency across a channel to a receiver and determining a first eye height of the received clock signal pattern at the receiver. The method may also include transmitting a second signal pattern at a second frequency across the channel to the receiver and determining a second eye height of the received clock signal pattern at the receiver. Transmitter equalization coefficients may then be determined based on the determined first eye height and the determined second eye height. | 12-31-2009 |
| 20100033211 | Link transmitter with reduced power consumption - With some transmitter embodiments disclosed herein, static power consumption in low power modes may be reduced without excessively increasing latency. | 02-11-2010 |
