Abstract: An infusion device includes a peristaltic pump, a gear set, an optical encoder, a motor, and a control module. The peristaltic pump is used to transport a fluid in an infusion tube. The motor is used to output power to drive the peristaltic pump, such that the peristaltic pump squeezes the infusion tube to transport the fluid. The optical encoder is driven by the motor to operate synchronously with the peristaltic pump. The control module is electrically connected to the motor and the optical encoder. The optical encoder is used to detect a rotational speed of the motor. The control module detects a flow rate of the fluid in the infusion tube based on the rotational speed, and the control module controls the rotational speed to change a peristaltic frequency of the peristaltic pump squeezing the infusion tube to adjust the flow rate.

Abstract: A parser is used for parsing a header in a packet. The parser includes a plurality of horizontal field selectors, a plurality of comparators, and a content addressable memory (CAM) based device. Each of the horizontal field selectors is configured to select a first bit group. The comparators are coupled to the horizontal field selectors, respectively. Each of the comparators is configured to compare a first bit group selected by a corresponding horizontal field selector with a designated value to generate a comparison result. The CAM based device is configured to receive a plurality of comparison results generated from the comparators, and use the comparison results as a first input search data.

Abstract: A parser is used for parsing a header in a packet. The parser includes a plurality of horizontal field selectors, a plurality of comparators, and a content addressable memory (CAM) based device. Each of the horizontal field selectors is configured to select a first bit group. The comparators are coupled to the horizontal field selectors, respectively. Each of the comparators is configured to compare a first bit group selected by a corresponding horizontal field selector with a designated value to generate a comparison result. The CAM based device is configured to receive a plurality of comparison results generated from the comparators, and use the comparison results as a first input search data.

Abstract: The invention discloses a switching power supply capable of reducing a low-frequency secondary-side common-mode voltage. The power supply mainly has two common-mode filtering circuit devices to prevent an AC voltage and an AC current from coupling to a secondary side of a transformer. Thus, the electrical safety and the quality in use of the associated electronic apparatus can be enhanced, a potential difference between the electronic apparatus and the ground may be greatly reduced, and an AC hum of a speaker coupled to an output of the power supply may be reduced or even eliminated.

Abstract: The invention discloses a switching power supply capable of reducing a low-frequency secondary-side common-mode voltage. The power supply mainly has two common-mode filtering circuit devices to prevent an AC voltage and an AC current from coupling to a secondary side of a transformer. Thus, the electrical safety and the quality in use of the associated electronic apparatus can be enhanced, a potential difference between the electronic apparatus and the ground may be greatly reduced, and an AC hum of a speaker coupled to an output of the power supply may be reduced or even eliminated.