System and method employing portable device for capturing and using broadcast source content to operate other digital devices

摘要

A handheld device (such as a personal digital assistant or a cellular telephone) is capable of receiving digital information obtained from a broadcast source during, for example, the vertical blanking interval or from the Internet. The handheld device is capable of both formulating an instruction based on the digital information received and transferring the information and/or instruction to a remote electronic device. The instructions are used by the remote electronic device to perform a particular operation.