Intrapersonal data communication system

A headgear system having an interference-resistant optical digital signal link configured to transmit optical digital signals between two or more local devices, the headgear system comprising:

• an exterior shell;
• a guide path adjacent to the exterior shell, the guide path configured to direct the optical digital signal link between a first optical connector having a non-contact portion and a second optical connector having a non-contact portion;
• a first signal converter having a first local device electrical data interface and a first optical data interface, wherein the first local device electrical data interface is configured to electrically connect to a first electrical data connector of a first local device, and wherein the first signal converter is configured to convert between electrical digital signals and optical digital signals;
• the first optical connector having a non-contact portion configured to couple optical digital signals between the first optical data interface of the first signal converter and a first end of the interference-resistant optical digital signal link across a first gap,
• a second signal converter having a second local device electrical data interface and a second optical data interface, wherein the second local device electrical data interface is configured to electrically connect to a second electrical data connector of a second local device, and wherein the second signal converter is configured to convert between electrical digital signals and optical digital signals;
• and
• the second optical connector having a non-contact portion configured to couple optical digital signals between the second optical data interface of the second signal converter and a second end of the interference-resistant optical digital signal link across a second gap.