KT had 21 patents in cybersecurity during Q4 2023. KT Corp filed patents for a quantum key distribution method/device and a single photon detector with specific operational features. The quantum key distribution device connects to another device through a quantum channel to distribute a quantum cryptography key using optical elements and post-processing units. The single photon detector includes a gate signal generator and a photon detector operating in Geiger mode, detecting single photons at specific time intervals. GlobalData’s report on KT gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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KT grant share with cybersecurity as a theme is 52% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Method and device for quantum key distribution (Patent ID: US20230396421A1)
The patent filed by KT Corp. describes a method and device for quantum key distribution, where a quantum key distribution device is connected to another device through a quantum channel to distribute a quantum cryptography key. The device includes an optical unit with an optical element for transmitting information and a post-processor that calculates the quantum cryptography key by processing random numbers generated by the optical unit. The device can have various configurations, such as multiple unit optical modules in the optical unit and multiple unit post-processing modules in the post-processor.
The claims in the patent outline different configurations and functionalities of the quantum key distribution device, including variations in the number of unit optical modules and unit post-processing modules, as well as adjustments based on random number generating rates. The post-processor is designed to operate in response to different protocols used in the unit optical modules, ensuring the secure distribution of quantum cryptography keys. Additionally, the method described involves generating random numbers using the optical unit and calculating the quantum cryptography key using the post-processor, with variations in configurations based on the number of unit optical modules and unit post-processing modules.
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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.
