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Mobile movies

发布时间:2019-03-06 08:12:02来源:未知点击:

By Barry Fox It would be great to receive high-quality video on a mobile phone, and now Hewlett-Packard has a way of beating the interference that can wreck digitally compressed pictures (WO 01/22735). HP uses standard MPEG digital video compression. This sends a few full picture frames, along with many predicted frames that only show how the picture is changing. But HP doesn’t send them all on one radio channel. Instead, it uses two channels to carry alternate full or predicted frames, recombining them in the cellphone. As interference usually affects one channel at a time,