Huawei Investment has been granted a patent for a data read/write apparatus and electronic device to enhance data storage performance. The apparatus includes a laser, dispersion compensator, and optical fiber lens to focus optical pulses onto a storage medium for writing data. GlobalData’s report on Huawei Investment gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Huawei Investment, was a key innovation area identified from patents. Huawei Investment's grant share as of February 2024 was 46%. Grant share is based on the ratio of number of grants to total number of patents.

Data read/write apparatus using lasers for improved performance

Source: United States Patent and Trademark Office (USPTO). Credit: Huawei Investment & Holding Co Ltd

A recently granted patent (Publication Number: US11922983B2) discloses a data read/write apparatus that includes a first laser, dispersion compensator, and optical fiber lens for writing data to an optical storage medium. The first laser outputs an optical pulse based on a control signal obtained from the data to be written, which is then compensated for dispersion by the dispersion compensator to produce a second optical pulse. The optical fiber lens focuses this pulse onto the storage medium, facilitating data writing. The apparatus further includes a second laser, optical fiber coupler, and detector for reading data from the storage medium based on fluorescent signals generated by the medium in response to the laser light.

Additionally, the patent describes various configurations and components of the data read/write apparatus, such as isolators to prevent interference, band-pass filters for signal filtering, and piezoelectric actuators for adjusting the position of optical fiber lenses. The apparatus can utilize different types of lasers, dispersion compensators, and optical fiber lenses to optimize the data reading and writing processes. The wavelength ranges of the laser light and fluorescent signals are specified, and the apparatus can be scaled up to handle multiple channels of data simultaneously, enhancing its efficiency and versatility in data storage applications.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.