Bill's teletoys

2019-03-07 03:08:04

By Barry Fox Patents filed by Microsoft reveal plans for an interactive toy system (WO 99/979). TV screens do not display the full width of a transmitted picture, so the extreme ends of each scanning line, known as the horizontal overscan, can be used to carry digital code. Microsoft proposes a decoder in the TV set which converts this code into control signals for a toy that are synchronised with the picture. The TV transmits the decoded data by a low-power radio link to any electronic equipment in the same room—so, for instance,