Cuba Tourist Visa. Everyone wishing to enter Cuba as a Tourist is required to apply for a Tourist Visa-card. A tourist card is valid ONLY for leisure or recreational purposes. It is not valid for other travel purposes. A Tourist Card is valid only for one entry within 180 days after the date of issue.
HD-CVi & HD-TVi Technologies. HDTVI (High Definition Transport Video Interface) is the HD Video transmission Interface. HDTVI technology can be implemented in existing simulation on a transmission line reliable kop HD video signal transmission.
HDTV and standard definition television (SDTV) are the two categories of display formats for digital television (DTV) transmissions, which are becoming the standard. HDTV provides a higher quality display with a vertical resolution display from 720p to 1080i.