Abstract: A low latency relinearization process can be performed in an FPGA cluster for accelerating homomorphic encryption. The low-latency process performs an early calculation of matrix rows to make the summation result available earlier in the relinearization to reduce waiting of subsequent operations.

Abstract: The present disclosure describes a method, an apparatus, and a non-transitory computer-readable medium for detecting sensitive text information such as privacy-related text information from a signal and modifying the signal by removing the detected sensitive text information therefrom. The apparatus receives the signal such as an image, a video clip, or an audio clip, and recognizes a text string therefrom. The apparatus then detects, from the text string, a substring based on a similarity between the substring and a regular expression, and modifies the signal by removing information related to the detected substring from the signal.

Abstract: A field-programmable gate array (FPGA) cluster, comprising a plurality of FPGA devices, can be used to accelerate homomorphic encryption functionality. In particular, the FPGA cluster can accelerate the relinearization process used in homomorphic encryption by using multiple FPGA devices to perform portions of the relinearization process in parallel. Further, the use of the FPGA cluster provides sufficient memory resources to allow data used by the relinearization process, namely the keyswitch keys, to be stored on-chip.

Abstract: Systems and memory devices are disclosed for fully homomorphic encryption (FHE). The system may include a processing unit including: a data memory for storing coefficients for a polynomial; a twiddle factor (TF) memory for storing TF values associated with the polynomial; a TF register connected to the TF memory; a plurality of first registers connected to the data memory; a plurality of first MUXs connected to the first registers; a plurality of second registers connected to the plurality of first MUXs; a plurality of Butterfly (BF) cores connected to the plurality of the second registers and the TF register; wherein each of the plurality of BF cores is configured to, responsive to a control signal, perform a Butterfly Transform (BFT) operation based on two coefficients from the data memory and a TF value from the TF memory.

Abstract: The present disclosure relates to one or more processors, communicative with one or more computer-readable media, are configured to automatically generate a sensitive text detector including a regular expression or keyword. A set of text inputs, including sensitive text, are received. The sensitive text is extracted from the set of text inputs. Based on the extracted sensitive text, one or both of the regular expression and the keyword are generated. The generated regular expression and/or keyword are used to generate a sensitive text detector for sensitive text detection.

Abstract: A low latency relinearization process can be performed in an FPGA cluster for accelerating homomorphic encryption. The low-latency process performs an early calculation of matrix rows to make the summation result available earlier in the relinearization to reduce waiting of subsequent operations.

Abstract: A field-programmable gate array (FPGA) cluster, comprising a plurality of FPGA devices, can be used to accelerate homomorphic encryption functionality. In particular, the FPGA cluster can accelerate the relinearization process used in homomorphic encryption by using multiple FPGA devices to perform portions of the relinearization process in parallel. Further, the use of the FPGA cluster provides sufficient memory resources to allow data used by the relinearization process, namely the keyswitch keys, to be stored on-chip.

Abstract: “The present disclosure describes a method, an apparatus, and a non-transitory computer-readable medium for detecting sensitive text information such as privacy-related text information from a signal and modifying the signal by removing the detected sensitive text information therefrom. The apparatus receives the signal such as an image, a video clip, or an audio clip, and recognizes a text string therefrom. The apparatus then detects, from the text string, a substring based on a similarity between the substring and a regular expression, and modifies the signal by removing information related to the detected substring from the signal.

Abstract: The disclosed systems and methods are directed to detecting sensitive data on a computing device. This includes matching predetermined keywords in input data, to determine data in vicinities of matched keywords in the input data in which sensitive data is likely to be found, and matching predefined patterns associated with sensitive data to the data in vicinities of matched keywords to detect sensitive data. Matching the predetermined keywords occurs prior to matching the predefined patterns, and the data in vicinities of matched keywords is substantially shorter than the input data.

Abstract: The disclosed systems and methods are directed to detecting sensitive data on a computing device. This includes matching predetermined keywords in input data, to determine data in vicinities of matched keywords in the input data in which sensitive data is likely to be found, and matching predefined patterns associated with sensitive data to the data in vicinities of matched keywords to detect sensitive data. Matching the predetermined keywords occurs prior to matching the predefined patterns, and the data in vicinities of matched keywords is substantially shorter than the input data.

Abstract: Systems and memory devices are disclosed for fully homomorphic encryption (FHE). The system may include a processing unit including: a data memory for storing coefficients for a polynomial; a twiddle factor (TF) memory for storing TF values associated with the polynomial; a TF register connected to the TF memory; a plurality of first registers connected to the data memory; a plurality of first MUXs connected to the first registers; a plurality of second registers connected to the plurality of first MUXs; a plurality of Butterfly (BF) cores connected to the plurality of the second registers and the TF register; wherein each of the plurality of BF cores is configured to, responsive to a control signal, perform a Butterfly Transform (BFT) operation based on two coefficients from the data memory and a TF value from the TF memory.

Abstract: Embodiments of the disclosure provide a controller for a compressor and a control method, a compressor assembly, and a refrigeration system, which improve control efficiency and reliability. The controller includes an obtaining module configured to obtain at least one operation state parameter of the compressor, and a controlling module configured to shut off a liquid injection valve if one of the at least one operation state parameter of the compressor meets a protection action condition, wherein the liquid injection valve is configured to regulate flow of fluid injected into the compressor.

Abstract: The disclosed systems, and methods are directed to a method for Privacy Preserving Inference (PPI) comprising receiving a first set of matrix information from a client device, generating kc?1 matrices by operating a first CSPRNG associated with the server with kc?1 seeds, computing inferences from the set of kc matrices, generating a matrix Ss, generating ks?1 random matrices, computing a matrix Yks in accordance with the inference matrix Y, the matrix Ss and the ks?1 random matrices, transmitting a second set of matrix information to the client device, the second set of matrix information includes ks?1 seeds corresponding to the ks?1 random matrices and the matrix Yks, receiving a matrix U from the client device, and computing an inference value y from the matrix U.

Abstract: The disclosed systems, and methods are directed to a method for Privacy Preserving Inference (PPI) comprising receiving a first set of matrix information from a client device, generating kc?1 matrices by operating a first CSPRNG associated with the server with kc?1 seeds, computing inferences from the set of kc matrices, generating a matrix Ss, generating ks?1 random matrices, computing a matrix Yks in accordance with the inference matrix Y, the matrix Ss and the ks?1 random matrices, transmitting a second set of matrix information to the client device, the second set of matrix information includes ks?1 seeds corresponding to the ks?1 random matrices and the matrix Yks, receiving a matrix U from the client device, and computing an inference value y from the matrix U.

Abstract: A fluid injection control system, a fluid injection control method and a fluid circulation system including the fluid injection control system are provided. The fluid injection control system includes an injection valve, control apparatus and energy storage apparatus. The injection valve is arranged in a path along which a fluid flows into a device; the energy storage apparatus is configured to supply, in response to the control apparatus being powered off, power to the control apparatus so as to maintain an operation of the control apparatus.

Abstract: A phase loss detection device, a compressor including the same, and a phase loss detection method are disclosed. The phase loss detection device may include a signal converting circuit and a processor. The signal converting circuit is configured to convert voltage signals corresponding to respective phases of multiphase alternating current (AC) power monitored from a motor. The processor is configured to receive the converted voltage signals from the signal converting circuit, and configured to calculate, based on the converted voltage signals, one or more phase angles between the respective voltage signals. The processor is configured to determine that phase loss occurs if any one or more of the calculated phase angles deviate from a nominal value of a corresponding phase angle of the multiphase AC power by a value higher than a predetermined threshold. The phase loss detection can be performed in a convenient, effective and reliable way.

Abstract: A fluid injection control system, a fluid injection control method and a fluid circulation system including the fluid injection control system are provided. The fluid injection control system includes an injection valve, control apparatus and energy storage apparatus. The injection valve is arranged in a path along which a fluid flows into a device; the energy storage apparatus is configured to supply, in response to the control apparatus being powered off, power to the control apparatus so as to maintain an operation of the control apparatus.

Abstract: Embodiments of the disclosure provide a controller for a compressor and a control method, a compressor assembly, and a refrigeration system, which improve control efficiency and reliability. The controller includes an obtaining module configured to obtain at least one operation state parameter of the compressor, and a controlling module configured to shut off a liquid injection valve if one of the at least one operation state parameter of the compressor meets a protection action condition, wherein the liquid injection valve is configured to regulate flow of fluid injected into the compressor.

Abstract: The present disclosure relates to telecommunication, and in particular, to a base station Radio Frequency (RF) duplexer, an RF module, and an RF system. A base station RF apparatus provided herein includes: an enclosure, an intermediate RF processing unit, and a duplexer. The enclosure is located on the duplexer; the intermediate RF processing unit is located inside a cavity enclosed by the enclosure and the duplexer, or on the duplexer; a duplexer cavity and a heat dissipation part exist on the surface of the duplexer; the opening of the duplexer cavity is opposite to or against the enclosure; the heat dissipation part is designed to dissipate heat of the intermediate RF processing unit; and the duplexer is integrally molded. The foregoing technical solution requires no external fasteners, reduces the time of production and assembly. In addition, waterproof design and shielding design are not required, and thus improves the reliability.

Abstract: The present disclosure relates to telecommunication, and in particular, to a base station Radio Frequency (RF) duplexer, an RF module, and an RF system. A base station RF apparatus provided herein includes: an enclosure, an intermediate RF processing unit, and a duplexer. The enclosure is located on the duplexer; the intermediate RF processing unit is located inside a cavity enclosed by the enclosure and the duplexer, or on the duplexer; a duplexer cavity and a heat dissipation part exist on the surface of the duplexer; the opening of the duplexer cavity is opposite to or against the enclosure; the heat dissipation part is designed to dissipate heat of the intermediate RF processing unit; and the duplexer is integrally molded. The foregoing technical solution requires no external fasteners, reduces the time of production and assembly. In addition, waterproof design and shielding design are not required, and thus improves the reliability.