Patent ID: 7557971

Claim:
A method of holographic data recording, the method comprising: a) providing a holographic recording medium comprising at least one data recording region, the at least one recording region including one or more data recording locations; b) performing at least one iteration of the following steps: i) providing a data light beam and a reference light beam; ii) encoding data onto the data light beam; iii) configuring the reference light beam; iv) directing the data light beam and the reference light beam to a data recording location on the holographic recording medium such that a holographic grating is formed in the holographic recording medium by the interference between the data light beam and the reference light beam, the holographic grating storing a currently written data page, and c) receiving a request for data stored at the data recording location on the holographic recording medium; d) determining if the data recording location is a closed region; e) fixing an area around the data recording location if the region is open; and f) reading the data in the data recording location.