Amethystum Storage Technology Assigned Patent

Amethystum Storage Technology Co., Ltd., Guangdong, China, has been assigned a patent (11,322,178) developed by Zheng, Mu, Luo, Tiewei, Tian, Jun, Hu, Dejiao, and Liu, Yicheng, Guangdong, China, for a “reflective holographic optical storage method and device.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The present invention discloses a reflective holographic storage method and device, in which a reflection layer is plated on a back side of a holographic storage medium, and a new reference light is formed by utilizing the reflection layer, so that a phase conjugate reproduction light of a hologram is obtained. According to the invention, a recording device and a reading device can be provided on the same side of a medium, thereby obtaining a more compact system, reducing design difficulty, improving system stability, and improving the SNR (signal-noise ratio) of reproduction light by the interference between reproduction light and a conjugate reproduction light.”

The patent application was filed on January 19, 2021 (17/152,417).