Patent ID: 6518950
Filing Date: 2003-02-11
Classification: G06F,G06K

Abstract:
An electronic data linked physical medium suitable for linking a physical medium with video and audio data stored on multimedia networked computers, the electronic data linked medium comprising:a physical medium having at least one hot spot encoded with linking data enabling the electronic data linked physical medium to access remote data, wherein the linking data is encoded according to a spectral encoding scheme, wherein at least part of the linking data is visible and is blended with and appears to comprise at least part of an un-encoded graphic or text visible on the physical medium such that it is not apparent to a viewer of the physical medium that said linking data is encoded in said at least one hot spot; a sensor operable to measure and decode the linking data, the sensor being capable of measuring the intensity of electromagnetic radiation; and a transmitter operable to transmit the linking data to a remote computer system, the remote computer system responsive to the linking data to retrieve the remote data and present it to a user of the electronic linked physical medium, whereby the user of the electronic data linked physical medium is provided a mechanism for linking to and accessing remote data; wherein said at least one hot spot is surrounded by a marker and the sensor is responsive to the marker, whereby the marker indicates to the sensor the region within which the linking data is encoded and the sensor measures and decodes the linking data surrounded by the marker.