Abstract: The present invention relates to a balloon catheter and an ablation system. The balloon catheter includes a catheter body, a balloon, a temperature-sensing element and a restricting member. The balloon is disposed at a distal end of the catheter body. The temperature-sensing element includes a temperature-sensing module and a wire. The temperature-sensing module is disposed on the balloon or the catheter body, and part of the wire of the temperature-sensing element is arranged in a cavity of the catheter body so as to extend in an axial direction of the cavity of the catheter body. The restricting member is disposed within the cavity of the catheter body and configured to positionally restrict the wire of the temperature-sensing element within the cavity of the catheter body.

Abstract: A boot read only memory (ROM) chip unit can perform a secure boot routine based on various operations. A processor device comprises a boot ROM chip with processing circuitry on a system board configured to perform a system board power up according to a read operation in a one-time-programmable OTP memory/non-volatile memory (NVM). The OTP memory/NVM includes a spare area in a portion of the OTP/NVM that can receive a first sequence pattern. The processor determines whether a secure boot indication indicates a secure boot routine, and differentiates one or more read return content of the OTP memory/NVM between a wrongly read return content and a trusted read return content, in response to, or concurrent with, the secure boot indication indicating the secure boot routine.

Abstract: A phase-locked loop (PLL) and a method for calibrating a VCO therein are provided. The PLL comprises a frequency-phase detector, a charge pump, a loop filter, a VCO, a divider and a calibration circuit. The calibration circuit is used to acquire a frequency of an output signal of the VCO, to calibrate the frequency of the output signal according to an expected frequency, and to acquire frequency control parameters of the VCO at the current signal frequency. The amplitude and gain of the output signal are kept constant according to the amplitude control parameters and gain control parameters. The PLL can meet the demands on frequencies of multiple protocols and can adaptively look up and stabilize the suitable frequency. It solves the issue that the amplitude of the output signal of the VCO is not constant when the PLL operates in a large frequency range.

Abstract: Anti-fault injection systems and methods are disclosed. An anti-fault injection system includes a processor; a boot ROM configured to store a series of boot instructions executable by the processor; and anti-fault injection controller circuitry. The anti-fault injection controller circuitry is accessible to the processor while the processor is executing the boot instructions. The anti-fault injection controller circuitry includes interrupt/reset circuitry configured to interrupt the processor in response to a trigger and secure boot circuitry. The secure boot circuitry is configured to, in response to being accessed by the processor: determine whether the processor is executing non-secure boot instructions in error; and in response to detecting that the processor is executing non-secure boot instructions in error, provide the trigger to the interrupt/reset circuitry.

Abstract: A phase-locked loop (PLL) and a method for calibrating a VCO therein are provided. The PLL comprises a frequency-phase detector, a charge pump, a loop filter, a VCO, a divider and a calibration circuit. The calibration circuit is used to acquire a frequency of an output signal of the VCO, to calibrate the frequency of the output signal according to an expected frequency, and to acquire frequency control parameters of the VCO at the current signal frequency. The amplitude and gain of the output signal are kept constant according to the amplitude control parameters and gain control parameters. The PLL can meet the demands on frequencies of multiple protocols and can adaptively look up and stabilize the suitable frequency. It solves the issue that the amplitude of the output signal of the VCO is not constant when the PLL operates in a large frequency range.

Abstract: A ventilating fan, includes a humidity sensor box, provided with an air inlet in a bottom surface facing an suction opening and an air outlet in a top surface opposite to the bottom surface; a humidity sensor located inside the humidity sensor box and adapted to detect the humidity of the air passing through the humidity sensor box; and a humidity sensor circuit board located inside the humidity sensor box, disposed perpendicular to the bottom surface and adapted to control the humidity sensor. The air may flow at a high speed in the humidity sensor box, and it is easy for the water vapor to be taken out of the humidity sensor box without being accumulated inside the humidity sensor box, thereby suppressing the influence of the water vapor or the water droplet on the humidity sensor and enabling the humidity sensor to accurately detect the indoor humidity.

Abstract: A boot read only memory (ROM) chip unit can perform a secure boot routine based on various operations. A processor device comprises a boot ROM chip with processing circuitry on a system board configured to perform a system board power up according to a read operation in a one-time-programmable OTP memory/non-volatile memory (NVM). The OTP memory/NVM includes a spare area in a portion of the OTP/NVM that can receive a first sequence pattern. The processor determines whether a secure boot indication indicates a secure boot routine, and differentiates one or more read return content of the OTP memory/NVM between a wrongly read return content and a trusted read return content, in response to, or concurrent with, the secure boot indication indicating the secure boot routine.

Abstract: A voltage controlled oscillator (VCO) is disclosed. The VCO includes an amplifier that receives a control signal and a feedback signal and generates an amplified output signal based on the difference between the control signal and the feedback signal. The VCO also includes circuitry to generate an oscillating output signal based on the amplifier output signal. Additionally, the VCO includes a feedback amplifier that generates the feedback signal based on the output of the amplifier. The feedback amplifier includes a first resistor connected in parallel with a second resistor, the second resistor having an adjustable resistance.

Abstract: A rigid hanger connecting structure and a bridge structure. The connecting structure includes a rigid hanger and further includes a first connecting portion connected to a top end of the rigid hanger and a second connecting portion connected to a bottom end of the rigid hanger, and the hanger is connected to the first connecting portion and/or the second connecting portion by using a spherical bearing pair. A rotatable connection between the hanger and a bridge structure is implemented to avoid cracking of concrete inside a short hanger, prolonging the service life of a bridge; the connecting ends of the hanger are located within a line of sight range convenient for maintenance, to eliminate a blind zone, improving bridge safety; the hanger can be prefabricated in a factory, shortening construction period and improving efficiency.

Abstract: A flexible cable connecting structure and a bridge structure. The connecting structure includes a flexible cable; the first portion connected to a top end and a second portion connected to a bottom end by using a spherical bearing pair. By using a hinge assembly and a spherical hinge assembly, a rotatable connection between the cable and a bridge structure is implemented to avoid force uniformity of steel wires inside the cable due to inclination, thus helps prolong the service life of the cable. The connecting ends of the cable are located in a lower part of an arch rib and an upper part of a bridge floor, respectively located within a line of sight range, making it convenient for maintenance. The cable can be prefabricated in a factory, which ensures construction quality and reduces time of site construction.

Abstract: An adapter structure for a ventilating fan, including an adapter having an air inlet; an air guide structure having an air inlet, and a mounting structure for mounting the air guide structure within the adapter. The mounting structure includes a first portion provided at an outer side of a flange of the air inlet of the air guide structure and a second portion provided at an inner side of the adapter so that the mounting structure is positioned between the air inlet of the air guide structure and the air inlet of the adapter. With the adapter structure for a ventilating fan according to the present invention, the airflow amount is prevented from being reduced, and noise is reduced.

Abstract: Embodiments relate to a voltage oscillator (VCO) that uses a replica bias circuit to generate a cascode bias voltage. The VCO generate an output periodic signal having a frequency and phase that is less or not susceptible to voltage swings by using a bias voltage generated in a replica bias circuit that replicates a voltage-to-current converter in the VOC. The bias voltage is generated and regulated according to a power supply voltage that supplies power to the VCO to account for voltage variations in the power supply voltage.

Abstract: The present invention relates to the field of construction engineering, and discloses a rigid hanger connecting structure and a bridge structure. The connecting structure includes a rigid hanger and further includes a first connecting portion connected to a top end of the rigid hanger and a second connecting portion connected to a bottom end of the rigid hanger, and the hanger is connected to the first connecting portion and/or the second connecting portion by using a spherical bearing pair. In the present invention, a rotatable connection between the hanger and a bridge structure is implemented to avoid cracking of concrete inside a short hanger, prolonging the service life of a bridge; the connecting ends of the hanger are located within a line of sight range convenient for maintenance, to eliminate a blind zone, improving bridge safety; the hanger can be prefabricated in a factory, shortening construction period and improving efficiency.

Abstract: The present invention relates to the field of construction engineering; a flexible cable connecting structure and a bridge structure. The connecting structure includes a flexible cable; the first portion connected to a top end and a second portion connected to a bottom end by using a spherical bearing pair. By using a hinge assembly and a spherical hinge assembly, a rotatable connection between the cable and a bridge structure is implemented to avoid force uniformity of steel wires inside the cable due to inclination, thus helps prolong the service life of the cable. The connecting ends of the cable are located in a lower part of an arch rib and an upper part of a bridge floor, respectively located within a line of sight range, making it convenient for maintenance. The cable can be prefabricated in a factory, which ensures construction quality and reduces time of site construction.

Abstract: Systems, devices and methods for analog echo cancellation for high speed full duplex data transmissions, which include a first set of differential nodes to receive reception data and transmission data, a second set of differential nodes to receive the transmission data, and a subtraction circuit to receive data from the first set of differential nodes and data from the second set of differential nodes. The subtraction circuit includes a plurality of capacitors to receive data from each of the first and second sets differential nodes, and a termination circuit for providing DC termination voltage to subtract the data of the second set of differential nodes from the data of the first set of differential nodes to eliminate echo from the reception data received at the first set differential nodes.

Abstract: Embodiments of the present disclosure relate to methods and device for receiving PAM data stream. In an embodiment, a method comprises receiving a signal stream modulated with pulse amplitude modulation (PAM) associated with a plurality of bit patterns; determining boundary voltages for the plurality of bit patterns; and calibrating, based on the boundary voltages, a threshold voltage for use in recognition of the plurality of bit patterns. In this way, bit patterns may be accurately recognized based on the calibrated threshold voltage.

Abstract: A ventilating fan, includes a humidity sensor box, provided with an air inlet in a bottom surface facing an suction opening and an air outlet in a top surface opposite to the bottom surface; a humidity sensor located inside the humidity sensor box and adapted to detect the humidity of the air passing through the humidity sensor box; and a humidity sensor circuit board located inside the humidity sensor box, disposed perpendicular to the bottom surface and adapted to control the humidity sensor. The air may flow at a high speed in the humidity sensor box, and it is easy for the water vapor to be taken out of the humidity sensor box without being accumulated inside the humidity sensor box, thereby suppressing the influence of the water vapor or the water droplet on the humidity sensor and enabling the humidity sensor to accurately detect the indoor humidity.

Abstract: A voltage controlled oscillator (VCO) is disclosed. The VCO includes an amplifier that receives a control signal and a feedback signal and generates an amplified output signal based on the difference between the control signal and the feedback signal. The VCO also includes circuitry to generate an oscillating output signal based on the amplifier output signal. Additionally, the VCO includes a feedback amplifier that generates the feedback signal based on the output of the amplifier. The feedback amplifier includes a first resistor connected in parallel with a second resistor, the second resistor having an adjustable resistance.

Abstract: Anti-fault injection systems and methods are disclosed. An anti-fault injection system includes a processor; a boot ROM configured to store a series of boot instructions executable by the processor; and anti-fault injection controller circuitry. The anti-fault injection controller circuitry is accessible to the processor while the processor is executing the boot instructions. The anti-fault injection controller circuitry includes interrupt/reset circuitry configured to interrupt the processor in response to a trigger and secure boot circuitry. The secure boot circuitry is configured to, in response to being accessed by the processor: determine whether the processor is executing non-secure boot instructions in error; and in response to detecting that the processor is executing non-secure boot instructions in error, provide the trigger to the interrupt/reset circuitry.

Abstract: A voltage controlled oscillator (VCO) is disclosed. The VCO includes an amplifier that receives a control signal and a feedback signal and generates an amplified output signal based on the difference between the control signal and the feedback signal. The VCO also includes circuitry to generate an oscillating output signal based on the amplifier output signal. Additionally, the VCO includes a feedback amplifier that generates the feedback signal based on the output of the amplifier. The feedback amplifier includes a first resistor connected in parallel with a second resistor, the second resistor having an adjustable resistance.