2results about How to "Reduce strong coupling" patented technology

The invention relates to a decentralized, distributed and RPC (Remote Procedure Call) low-dependency global user security authentication and system mutual trust security service system, which comprises a user authentication certificate management module for managing signature certificates used for user authentication and basic authority management and control in the past, at present and in the future; the user verification certificate issuing and storage module is used for issuing a verification certificate list according to a request of the client, and after the client obtains the verification certificate list, binary block encryption is carried out on the verification certificate list in a mode of combining a fixed encryption key, a machine fingerprint encryption key and an environment variable encryption key and the verification certificate list is combined into a file system; the user authentication signature module supports a user to carry out single-mode or multi-element authentication processing in the modes of user passwords, registered mobile phone short messages, account electronic Key, face recognition and fingerprint recognition; and the user signature verification module is used for obtaining the asymmetric signature public key from the local certificate list according to the signature certificate ID to perform signature verification processing.

This invention relates to the field of semiconductor structure technology and discloses a surface acoustic wave (SAW) resonator, filter, and electronic device. The SAW resonator includes a piezoelectric layer and an interdigital transducer. The interdigital transducer includes multiple electrode strips and a first busbar and a second busbar arranged opposite each other along a first direction. The first and second strips are alternately arranged along a second direction, and the first and second directions intersect. The interdigital transducer includes a central region and edge regions located on both sides of the central region along the second direction. A first metal duty cycle is smaller than a second metal duty cycle, and the difference between the second and first metal duty cycles ranges from 0.05 to 0.3. The first metal duty cycle is the metal duty cycle of the electrode strips in the edge regions, and the second metal duty cycle is the metal duty cycle of the electrode strips in the central region. This invention weakens the strong coupling between the incident wave and the reflected wave, thereby reducing the ripple on the low-frequency side of the resonant frequency.