scholarly journals Multiplane Mesoscope reveals distinct cortical interactions following expectation violations

2020 ◽  
Author(s):  
Natalia Orlova ◽  
Dmitri Tsyboulski ◽  
Farzaneh Najafi ◽  
Sam Seid ◽  
Sara Kivikas ◽  
...  
Keyword(s):  
Neuronal Activity ◽  
Random Access ◽  
Dynamic Routing ◽  
Cortical Column ◽  
Unexpected Events ◽  
Time Division Multiplexing ◽  
Cortical Columns ◽  
Time Division ◽  
Signal Routing

Cortical columns interact through dynamic routing of neuronal activity. To monitor these interactions, we developed the Multiplane Mesoscope which combines three established microscopy technologies: time-division multiplexing, remote focusing, and random-access mesoscopy. The Multiplane Mesoscope allowed us to study cortical column interactions in excitatory and inhibitory subpopulations in behaving mice. We found that distinct cortical subnetworks represent expected and unexpected events, suggesting that expectation violations modify signal routing across cortical columns, and establishing the Multiplane Mesoscope as a unique platform to study signal routing.

Full-parallax 3D display using time-multiplexing projection technology

2020 ◽  
Vol 2020 (2) ◽  
pp. 100-1-100-6
Author(s):  
Takuya Omura ◽  
Hayato Watanabe ◽  
Naoto Okaichi ◽  
Hisayuki Sasaki ◽  
Masahiro Kawakita
Keyword(s):  
Incident Light ◽  
Polarization State ◽  
3D Image ◽  
3D Display ◽  
Time Division Multiplexing ◽  
3D Images ◽  
Polarization Gratings ◽  
Light Rays ◽  
Time Division

We enhanced the resolution characteristics of a threedimensional (3D) image using time-division multiplexing methods in a full-parallax multi-view 3D display. A time-division light-ray shifting (TDLS) method is proposed that uses two polarization gratings (PGs). As PG changes the diffraction direction of light rays according to the polarization state of the incident light, this method can shift light rays approximately 7 mm in a diagonal direction by switching the polarization state of incident light and adjusting the distance between the PGs. We verified the effect on the characteristics of 3D images based on the extent of the shift. As a result, the resolution of a 3D image with depth is improved by shifting half a pitch of a multi-view image using the TDLS method, and the resolution of the image displayed near the screen is improved by shifting half a pixel of each viewpoint image with a wobbling method. These methods can easily enhance 3D characteristics with a small number of projectors.

A Novel Multichannel Inductive Wear Debris Sensor Based on Time Division Multiplexing

2021 ◽  
Vol 21 (9) ◽  
pp. 11131-11139
Author(s):  
Sen Wu ◽  
Zhijian Liu ◽  
Kezhen Yu ◽  
Zixiao Fan ◽  
Ziyi Yuan ◽  
...  
Keyword(s):  
Wear Debris ◽  
Time Division Multiplexing ◽  
Time Division

scholarly journals A 30GHz integrated time-division multiplexing front-end for phased-array applications in SiGe

2009 ◽  
Author(s):  
Wei Deng ◽  
Reza Mahmoudi ◽  
Arthur van Roermund ◽  
Fernando Fortes ◽  
Edwin van der Heijden
Keyword(s):  
Phased Array ◽  
Time Division Multiplexing ◽  
Front End ◽  
Time Division
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