GENEVA, July 9 -- ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD. filed a patent application (CN2025/147189) for “OSCILLATOR FREQUENCY MODULATION CIRCUIT AND COMMUNICATION CHIP”. With publication no. WO/2026/145524, here are the other details related to the patent application:
Kind: Initial Publication with ISR [A1]
IPC: H03D 7/12
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).
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