TDK had seven patents in artificial intelligence during Q1 2024. TDK Corp’s patents filed in Q1 2024 include a magnetic array with magnetoresistance effect elements and a pulse application device for initialization and operation pulses, a bi-directional photoacoustic gas sensor with two cells for improved signal-to-noise ratio, a memristor with variable conductance elements for reading paths, and a head worn electronic device with accelerometer for voice activity detection and control of a host device. GlobalData’s report on TDK gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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TDK grant share with artificial intelligence as a theme is 42% in Q1 2024. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Magnetic array, magnetic array control method, and magnetic array control program (Patent ID: US20240074323A1)
The patent filed by TDK Corp describes a magnetic array comprising multiple magnetoresistance effect elements with a pulse application device that applies initialization and operation pulses to each element. The initialization pulse includes a first pulse repeated to spread resistance values, with a voltage lower or pulse length shorter than the operation pulse. The pulse application device can change the polarity of the first pulse after a set number of applications, and a magnetic field application device can set the initial distribution. The method involves initializing the elements, applying the first pulse to spread the distribution, and operating the elements with an operation pulse.
The patent also covers a control method and computer-readable media for the magnetic array, detailing steps for initializing the elements, applying pulses, and measuring resistance values. The method includes changing the polarity of the first pulse, applying different conditions to element groups, and setting the initial distribution with additional pulses. The computer-readable media includes programs for initialization, operation, detection, and control of the magnetoresistance effect elements, with specific instructions for applying pulses and managing element groups in a neural network setting. Overall, the patent focuses on a method and system for efficiently initializing and operating a magnetic array for various applications, including neural networks.
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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.
