Abstract
A new method of transmitting data suitable for a teletext service is introduced. This is a channel that is time division multiplexed into the front porch Portion of the composite video and transmits two bits of information by virtue of a burst that can assume one of four possible phases, in the preferred form. It is intended to be used together with the conventional method of teletext transmission through the vertical blanking interval to substantially reduce the waiting time for page information acquisition and display. The system is shown to have an excellent resiliency to noise. It has good potential for cost effectiveness because it uses much of the circuitry already present in a color television for detection, synchronization, and processing.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
