Taiwan National Central University Assigned Two Patents

Light interference module and holographic storage apparatus
National Central University, Taoyuan, Taiwan, has been assigned a patent (9,542,970) developed by Sun, Ching-Cherng, Yu, Yeh-Wei, and Lin, Che-Chu, Taoyuan, Taiwan, for a “light interference module and holographic storage apparatus.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A light interference module includes an object lens, a first light-guiding element, and a second light-guiding element. The object lens is configured to project a signal light beam to an optical storage media. The first light-guiding element is configured to project a first reference light beam to the optical storage media, in which the first reference light beam and the signal light beam produce a first interference pattern on the optical storage media. The second light-guiding element is configured to project a second reference light beam to the optical storage media, in which the second reference light beam and the signal light beam produce a second interference pattern on the optical storage media, and the first interference pattern is different from the second interference pattern.“

The patent application was filed on October 12, 2015 (14/880,285).

Holographic device and method for data reading
National Central University, Taoyuan, Taiwan, has been assigned a patent (9,495,993) developed by Yu, Yeh-Wei, and Sun, Ching-Cherng, Taoyuan, Taiwan, for a “holographic device and method for data reading using the same .“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A holographic device includes a holographic storage device, a shearing interferometer, and an optical receiver. The holographic storage device is configured to provide a disk with a reading light beam to make the reading light beam become a diffracted light beam after the reading light beam is diffracted in the disk. The shearing interferometer is configured to receive the diffracted light beam and to transform the diffracted light beam into a first light beam and a second light beam. The optical receiver is configured to receive the first light beam and the second light beam provided by the shearing interferometer.“

The patent application was filed on January 31, 2016 (15/011,630).