Patent ID: 9369269
Filing Date: 2016-06-14
CPC Classification: G01R,H02J,H04J,H04L,H04Q,Y02E,Y04S

Claim Text:
1. A sampling device for use in a distributed power measurement system, the sampling device comprising: a delta-sigma modulator for sampling a power waveform to generate a bitstream of delta-sigma modulated sample data; a link interface to send and receive data with a remote master device using high-speed isochronous data links; a clock circuit to generate a local clock signal; a data storage element to store a sequence number of a time-stamp packet received from the remote master; a counter clocked by the local clock signal to determine an offset time between receipt of the time-stamp packet and occurrence of one of the samples taken by the delta-sigma modulator; and a framing controller to generate framed output data for transmission to the remote master device over the isochronous data link, wherein the framed output data includes the sequence number, the offset time, and a data payload, and wherein the data payload comprises the delta-sigma modulated sample data.