All PSoC Application Notes

AN2049: OnTV-21 or Stay in touch while watching TV

OnTV-21 is a small and relatively simple device that allows its owner to stay in touch while watching TV. OnTV-21 includes a wireless link to a PC that can collect information about incoming E-mails and chat requests. OnTV-21 is also coupled to a telephone line so it can collect Caller ID information. OnTV- 21 displays the information it gets in the TV using the Closed Caption decoder. OnTV-21 gets its name from the fact that Closed Caption information is broadcasted on the 21st line of the video frame.