I fairly sure the concept of "code division" (a form of multiplex) was around at the end of WWII.Maybe on a few wireline circuits spanning the Atlantic (trans-Atlantic cable) ... but nothing involving radio ...
Wait - they used time division, not 'code' division on those 'circuits' ...
About the same for shared channel access arbitration (multiple access).Multiple access implies multiple users accessing a common channel concurrently (from the viewpoint of each subscriber). No arbitration ...
I fairly sure the concept of "code division" (a form of multiplex) was around at the end of WWII. About the same for shared channel access arbitration (multiple access).I'm not going to grant credit on this item - this sounds like pure speculation on your part ... certainly the topic 'spead spectrum' wasn't in common usage and even multiplex (either carrier or time-division) in telephony was young at this point - SSB (single side band wasn't even in use yet!) ... (the texts to check for references to these items would be the olf BSTJ - Bell System Techncal Journals - and not some poorly reseached science show hosted by a celebrity)
No points for you this evening ...