Template Details
Full Wireless Triggering System
Any serious EEG system needs the ability to send accurate and precise time markers for triggers and events. Although wireless systems enable mobility, accurate timing is difficult due to the inherent latency and jitter in wireless communications. This lack of accuracy is present in all wireless EEG solutions. The Cognionics triggering system is a custom developed protocol to accurately broadcast time markers with millisecond precision, resolving the issues of latency and jitter. Because the timing accuracy is guaranteed in hardware, there is no need for software or algorithmic timing compensation making experiments simple and reliable, just like a traditional wired setup.
The trigger box accepts the same inputs as a wired EEG system: an 8-bit TTL interface via DB-25, a RS232 serial via DB-9 and a USB virtual serial port making it compatible with virtually all popular triggering and stimulus presentation packages. Incoming markers are broadcast wirelessly to the mobile EEG electronics and integrated within the EEG data stream. Most users will require minimal, if any, modifications to an existing experimental paradigm to use the system.
The trigger box works with all of Cognionics EEG data acquisition systems which have the necessary receiver built in. Because the triggers are broadcast wirelessly, it is possible to send timing information to a virtually unlimited number of receiving systems in rage. This enables new experiments that are currently difficult or impossible, including multi-subject group research.
We're also happy to build customized wireless triggering systems if your experiment requires sources that require something besides the DB-25 and DB-9 connectors.
Specifications
| Model | USB Trigger | Full Trigger | ||
| Inputs | USB | TTL, RS232 and USB | ||
| TTL Connector | None | DB-25 parallel | ||
| RS232 Connector | None | DB-9 serial | ||
| USB Connector | USB-A, virtual serial port interface (FTDI) | mini-B, virtual serial port interface (FTDI) | ||
| Timing Latency and Jitter | Less than 6ms | Less than 2 ms | ||
| Wireless Protocol | Proprietary 2.4Ghz | Proprietary 2.4 GHz | ||
| Range | 10 meter typical | 10 meter typical | ||
| Power | Via USB Port | Via USB port | ||
| Dimensions | 2.5" x 1" x .4" | 3.6" x 2.1" x 0.7" |
Diagrams
ERP recordings from an ambulatory subject using Cognionics' Wireless Triggering System
Datasheet
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Cognionics core technologies span all of the components necessary to build portable, wearable and reliable biopotential monitoring systems. Our proprietary technologies include a new class of high input impedance active electrodes, low-noise amplifiers, sensor materials and form-factors.
Our new sensor systems solve many of the practical issues associated with building the best dry electrodes including noise, comfort, application time, reliability, cost and manufacturing. This technology is optimized to achieve the level of performance necessary to sense high quality electrocardiograms (ECG), electroencephalograms (EEG) and other body surface electrical activity without the need for gels or even direct skin contact.
Our technologies and expertise enable:
- Extended Holter ECG monitoring (48 hr - 30 days) with extremely comfortable, low-maintenance, high-reliability dry electrodes
- Motion artifact tolerant dry ECG electrodes for stress and fitness monitoring, both medical and recreational
- Comfortable and wearable EEG devices tolerant of moderate subject movement for neurology and research (including Brain Computer Interfaces)
- High-density, wireless and research EEG systems (32-channels and up) without the time-consuming need for gels and scalp preparation
- Precision measurements of electric fields and potentials through very high source impedance (microelectrodes, free space)
Cognionics, Inc. is a fast-growing company founded in 2010 and is dedicated to building innovative wireless physiological monitoring systems that can achieve high mobility without sacrificing signal quality to enable real-world applications. Some of our highlights and accomplishments include:
- Designing the first flexible dry electrode (2012)
- Building the highest density dry EEG system, HD-72 (2013)
- Building the highest density wireless EEG cap, Mobile-72 (2014)
- Building the world's first precision wireless EEG/ERP marker system (2014)
- Building the lightest and fastest dry EEG headset, Quick-20 (2015)
- Building the world's first, zero-adjustment, active electrode, actively shielded 30-channel EEG headset
- Obtaining patent grants and patent applications covering our sensors, mechanics and electronics
- Signing multiple licensing agreements to bring our sensors to the market in partner products
- Establishing a world-wide user base of academic and commercial research laboratories
Our products range from 2 to 64-channel dry EEG systems supported by an array of accessories for auxiliary physiological inputs (ECG, EMG, EOG, GSR, PPG, motion and more).
Cognionics technology was developed with funding from:
What's New?
August 17, 2017
Cognionics moves to new 8,000 square foot facility at 8445 Camino Santa Fe Drive, Suite 104.
August 8, 2017
Cognionics awarded grant to work on unobtrusive neurotechnology and HCI for enhanced learning.
June 26, 2017
New demonstration! Our new video in the "Videos" page shows how quickly our headsets recover from rTMS.
June 6, 2017
Cognionics selected for Phase II STTR to develop a circadian rhythm monitoring device
December 23, 2016
Cognionics selected for Phase I STTR to develop a stress/strain monitoring device
November 15, 2016
Introducing the New Quick-30 Dry EEG Headset
November 15, 2016
Introducing the 2nd Generation Quick-20 Dry EEG Headset