ELECTRONIC DEVICES AND METHODS OF OPERATING THE SAME

    公开(公告)号:US20250036520A1

    公开(公告)日:2025-01-30

    申请号:US18420877

    申请日:2024-01-24

    Abstract: An electronic device may include a reception circuit configured to generate a plurality of reception data bits based on a voltage level of an analog signal received through a link, and to generate a plurality of bit reliability values indicating probabilities of error occurrence of the plurality of reception data bits based on the voltage level of the analog signal, an alignment circuit configured to group the plurality of reception data bits into a plurality of error correction code (ECC) symbols, and to generate a plurality of symbol reliability values indicating probabilities of error occurrence of the plurality of ECC symbols based on the plurality of bit reliability values, and a decoding circuit configured to correct errors of the plurality of ECC symbols based on the plurality of symbol reliability values.

    ERROR CORRECTION DEVICE AND ERROR CORRECTION METHOD

    公开(公告)号:US20240178863A1

    公开(公告)日:2024-05-30

    申请号:US18511740

    申请日:2023-11-16

    CPC classification number: H03M13/1595 H03M13/2778 H03M13/2927

    Abstract: A device includes a receiver configured to receive a plurality of Error Correction Code (ECC) codewords transmitted from an external device through a channel including one or more lanes; an ECC decoder configured to generate a plurality of post ECC codewords by performing error correction with respect to the plurality of ECC codewords and generating a first cyclic redundancy check (CRC) codeword based on the plurality of post ECC codewords; a CRC checker configured to determine whether an error exists in the first CRC codeword; and a post ECC decoder configured to, when it is determined that the error exists in the first CRC codeword, generate a second CRC codeword by estimating a remaining error position based on error correction result information received from the ECC decoder and performing remaining error correction with respect to the plurality of post ECC codewords based on the remaining error position.

    Apparatus and method for securely managing keys

    公开(公告)号:US11533172B2

    公开(公告)日:2022-12-20

    申请号:US16929917

    申请日:2020-07-15

    Abstract: An integrated circuit includes a system memory, a security processor and a non-security processor. An attack against the integrated circuit is made more difficult based on using a key generated by the security processor. The security processor, as an example, reads a program image from the system memory and generates the key based on the program image. In some instances, a dedicated communication channel is provided for communication between the non-security processor and the security processor. The dedicated channel may be used to provide the key to the non-security processor for performance of a security operation.

    Electronic device for updating firmware based on user authentication and an operating method thereof

    公开(公告)号:US11409879B2

    公开(公告)日:2022-08-09

    申请号:US17029442

    申请日:2020-09-23

    Abstract: The present disclosure relates to an electronic device, such as a system on chip, that may perform firmware updates based on user consent. The system on chip includes a nonvolatile memory (NVM), a main processor, a security NVM, and a security processor. The nonvolatile memory (NVM) stores first firmware and a user permission indicator. The main processor Loads the first firmware to boot a security processor. The security NVM contains first version information. The security processor compares version information of the first firmware to the first version information based on the user permission indicator and executes the first firmware in response to the matching of the comparison result. In some examples, the security processor is implemented on the same chip as the main processor.

    Display device and method of anti-spoofing of the display device

    公开(公告)号:US11348376B2

    公开(公告)日:2022-05-31

    申请号:US16985888

    申请日:2020-08-05

    Abstract: A display device is provided. The display device includes a display panel including a pixels; a fingerprint recognition sensor including an image sensor disposed under a first surface of the display panel; and a processor to control the display panel and the fingerprint recognition sensor. A portion of display pixels are configured to emit light in a fingerprint recognition mode. The image sensor includes pixels, at least a portion of the pixels are phase detection pixels. The image sensor generates a fingerprint image signal and a fingerprint phase signal based on reflected light received while the portion of display pixels emit light. The main processor is further configured to perform an anti-spoofing operation or a fingerprint authentication operation based on the fingerprint image signal and the fingerprint phase signal.

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