There were some interesting competing products around that time which used datacasting over Vertical Blanking Interval in the PBS television signal. You subscribe to the service, and they would send you a box which you hooked to your incoming cable feed, and it did the VBI extraction and provided it to a DOS application running on the computer for display. I wish I could remember the name of the company, but at the time I thought it was pretty interesting. Devin On Mon, Aug 5, 2024 at 8:34 PM Martin A. Flynn via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote:
On 8/5/2024 11:21 AM, Bob Roswell via vcf-midatlantic wrote:
I think I have one in inventory. Anyone up for building a FM transmitter t make our Lotus Signal work again? That likely would have been an SCA signal piggybacked on an FM broadcast signal.
See:
* https://patents.google.com/patent/US3387268A/en * https://libraryarchives.metro.net/dpgtl/trafficplans/1989-smart-corridor-pro... page 188