A yet to be named LL X-gate


Using a LED/LDR pair to form inverting Photonic logic gates. The entire Boolean logic set handled by resistors and diodes! Who'd'a thunk

dr-cockroachDr. Cockroach 01/03/2022 at 20:046 Comments

Well, exclusive to All and Nothing OR Everything in between ;--)

I was messing with the XNOR circuit and this came up. Perhaps it

could be used as a lower and upper detection for a counter... I have no idea.


Starhawk wrote 01/05/2022 at 12:23 point

"Unified Input"...? Less of a mouthful than "Unanimous Input".

Maybe call it a "Consensus Gate"? All Aye's is a consensus... as is All Nays ;)

Ehhh whatever works, works.

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Dr. Cockroach wrote 01/05/2022 at 18:02 point

Perhaps, IDK....This was not exactly a priority project to begin with but it kept nagging at me. Consensus Gate works ;-)

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Ken KD5ZXG wrote 01/08/2022 at 08:40 point

Then we have a consensus on Consensus.

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Ken KD5ZXG wrote 01/04/2022 at 06:52 point

All or Nothing. Therefore AON?

Out of Bounds. Therefore OOB?

Bread on Baloney. Therefore BOB?

Unanimous Minority or Majority. UMOMY and tell her I said so...

555 can discover XOR by mixing a vote not between limits CV/2>VOTE>RESET.

Could be tweaked to discover AON or almost AAON from larger groups of input.

LDR have such muddy thresholds, better solved with diodes than a resistive mix.

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Dr. Cockroach wrote 01/04/2022 at 09:37 point

Well, the output will be a near ground condition for a low and a near open for a high in this configuration so only really usable with other Light Logic gates ATM. However I love the names you came up with ;-)  I think UMOMY wins :-D

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Ken KD5ZXG wrote 01/04/2022 at 14:20 point

Sadly, "All or Nothing" appears to be a name already taken.

Precedent for that phrase describing output behavior of AND.

In our context, "Nothing" wanted to mean unanimous low inputs.

But can't press a phrase already in use to mean something else.

"All the Same" and "Uncontested Agreement" just sound dumb.

"Exclusive Majority", doesn't make intuitive sense and could

easily mislead to output resembles input, not as intended.

"None Different", "No Disagreement", "ND" implies opposite "D",

but Takahasi and Goto's D-Gate already exists, so can't use that.

A squid only has two eyes, may not properly describe a potato.

Can only assume superconducting quantum interference device. 

"Uniform Input", though UI could misread as user interface.

AON might still work as "AND or NOR".

Does reverse Polish notation now demand "AND NOR or"?

I give up...

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