Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including infra-red link with landline telephone network
Inventor
active
Method and apparatus for controlling the ring volume of a teleph
Telephone system with automatic dialing using infrared transmiss
Telephone with a detachable key pad and method for operating it
No associations
LandOfFree
Sung-Hum Yun does not yet have a rating. At this time, there are no reviews or comments for this inventor.
If you have personal experience with Sung-Hum Yun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sung-Hum Yun will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-P-1500129