1
Niall Kevin Kearney, Keith O Donoghue, Hongxing Li: Analog to digital convertor and a method of calibrating same. Analog Devices Global, Knobbe Martens Olson & Bear, October 13, 2015: US09160356 (5 worldwide citation)

An analog to digital convertor (ADC) comprises an integrator having an input selectively connected to an intermediate frequency (IF) signal input and an output connected to a summer. The summer has an output connected to an input of a quantizer, the quantizer output being operatively connected to a ...


2
Hongxing Li, Niall Kevin Kearney, Keith O Donoghue: Delta-sigma modulator having transconductor network for dynamically tuning loop filter coefficients. Analog Devices Global, Patent Capital Group, March 7, 2017: US09590590

A dynamically tunable transconductor includes a voltage-to-current converter stage for generating a current signal based on a voltage signal; and a current scaling stage for scaling the current signal by a scaling factor to achieve a particular transconductance. Current scaling stage includes a coar ...


3
Muhammad Kalimuddin Khan, Michael J Deeney, Niall Kevin Kearney, Kenneth J Mulvaney, Shane A O Mahony: Low intermediate frequency receiver. Analog Devices Global, Knobbe Martens Olson & Bear, July 12, 2016: US09391578

An LIF receiver includes a receiver path comprising: a mixer for mixing a received RF signal with a local oscillator signal to provide an IF signal at a lower frequency than the received RF signal, a bandpass filter for filtering the IF signal, a PGA for amplifying the filtered IF signal, an ADC for ...


4
Muhammad Kalimuddin Khan, Kenneth J Mulvaney, Michael Deeney, Niall Kevin Kearney: Apparatus and method for evaluating the performance of a system in a control loop. Analog Devices Global, Knobbe Martens Olson & Bear, March 14, 2017: US09594100

A monitoring circuit for monitoring the performance of a phase locked loop having a divider therein, the divider comprising at least a first counter, the monitoring circuit comprising at least one memory element for capturing a value of the first counter after a predetermined time from a system even ...