[time-nuts] Re: Clock displays -- eye response

2021-12-11 Thread Hal Murray
Erik E. Fair said: > This apparently relevant paper is, alas, behind a paywall: ... > The magic (google-fu) word is "latency" ... Ah... Thanks. NIH should have a lot of papers on visual stuff, so I fed >pubmed visual latency< to Google That got a bunch of hits. Some are behind paywalls.

[time-nuts] Re: Clock displays -- eye response

2021-12-10 Thread Erik E. Fair
This apparently relevant paper is, alas, behind a paywall: Investigation on human visual response latency https://ieeexplore.ieee.org/document/5540888 DOI: 10.1109/ICCDA.2010.5540888 The magic (google-fu) word is "latency" just as in computer networking & time

[time-nuts] Re: Clock displays -- eye response

2021-12-10 Thread Bob kb8tq
Hi Actually Have Quick (at least the airborne VHF version) was developed in parallel with SINCGARS. For quite a while it was unclear which one would “get there” first. The “time transfer” function is required for crypto synch. Without it, there the typical radio can not lock up to the current

[time-nuts] Re: Clock displays -- eye response

2021-12-10 Thread Brooke Clarke via time-nuts
Hi Jim: Interesting paper on flashing temporal response.  "Have Quick" is primarily a spread spectrum radio protocol but it also includes a time transfer/setting protocol. The early Trimpack GPS receivers included a time setting output. https://prc68.com/I/Trimpack.shtml The PLGR & DAGR

[time-nuts] Re: Clock displays -- eye response

2021-12-10 Thread Lux, Jim
On 12/10/21 12:31 PM, Brooke Clarke via time-nuts wrote: Hi Hal: There has been some recent research into illusions related to sight and sound. https://en.wikipedia.org/wiki/McGurk_effect - related to speech and search "audio optical illusion" I like a crisp "tick" for clock human

[time-nuts] Re: Clock displays -- eye response

2021-12-10 Thread Lux, Jim
On 12/10/21 12:09 PM, Hal Murray wrote: Does anybody have numbers for how long it takes for a visual signal to get into your brain? I think it's around 250 ms for a human to push a button when a light goes on. Less if the penalty for false pushes is low. I don't have a handy URL to back that

[time-nuts] Re: Clock displays -- eye response

2021-12-10 Thread Brooke Clarke via time-nuts
Hi Hal: There has been some recent research into illusions related to sight and sound. https://en.wikipedia.org/wiki/McGurk_effect - related to speech and search "audio optical illusion" I like a crisp "tick" for clock human synchronization. I wonder why there has not been more done with