Tektronix, Inc.

Timothy E Sauerwein

Keith D Rule

Sean T Marty

Senthil Kumar Thandapani

Clinton M Alter

James R Waschura

Jenny Yang

A method of synchronizing tasks in a test and measurement system, includes receiving, at a client in the system, a task input, receiving, at a job manager running on a first device processor in the system, a call from the client to create a job associated with the task, returning to the client an action containing at least one job code block associated with the job, receiving a call for the action, executing the at least one job code block by at least one processor in the system, determining that the job has completed, and completing the task. A system of devices including at least one test and measurement device and a device controller, the device controller having at least one user input, a device controller processor configured to execute instructions, and at least one memory to store the data and to store instructions in the form of executable code, wherein the code causes the device controller processor to receive an input from a client, the input identifying a task, create a job associated with the task, return to the client an action containing at least one job code block associated with the task, receive a call for the action, determine that the job has completed, and notify the client that the job has completed.

Multi-instrument behavior synchronization using jobs and milestones

An improved arbitrary waveform generator has a waveform memory for storing digitized waveforms, a waveform playout for playing out desired ones of the digitized waveforms as analog waveforms and a sequencer for controlling the waveform playout, the sequencer providing indications of the desired waveform for playout and a desired starting sample position for the desired waveform. The sequencer includes a tracking mechanism for the desired waveform so that the desired waveform is phase coherent when playout is interrupted and restarted later according to programming of the sequencer.

Phase coherent playback in and arbitrary waveform generator

Embodiments of the present invention provide a variable inter symbol interference generator that generates a data signal having a variable amount of inter symbol interference by passing a data signal through (1) a programmable filter having an adjustable frequency response, and through (2) a fixed filter having a fixed frequency response such as a PCB trace, a length of cable, a discrete filter, or the like. By adjusting the parameters and therefore the insertion gain or loss of the programmable filter, and combining this with one or more fixed filters, a large range of continuously variable and finely tunable inter symbol interference amounts can be easily generated.

Growing community of inventors

Portland, OR, United States of America

Timothy E Sauerwein