Abstract: A suction cup may comprise a cup body, a locating unit, a pressing unit, a rotating plate, a shell and a connecting unit. The cup body has a suction face and a rear face, and a central portion of the rear face comprises a stepped column. The pressing unit has an upper part, two lower parts, and a second through hole penetrates through a central portion of the upper part, and the rotating plate has a first surface and a second surface, and a central axle protrudes from a central portion of the first surface. The central axle passes through the second through hole of the pressing unit and then engages with the stepped column such that the upper part and the second through hole are configured to secure and prevent the central axle from swing or shifting due to the heavy load.

Abstract: A laser apparatus includes an optical fiber component and a pump light source coupled to the optical fiber component. The optical fiber component includes a first fiber segment, a second fiber segment and a connecting segment that connects the first and second fiber segments. The first fiber segment includes a fiber core having a first diameter, and the second fiber segment includes a fiber core having a second diameter. The first diameter may be greater than the second diameter, and the connecting segment may have a periodically varying refractive index.

Abstract: A non-contact apparatus for monitoring cardiopulmonary activity signals comprises a pulse-series generator configured to generate a series of probing pulses and a series of reference pulses, a transmitting antenna configured to emit the probing pulses to a chest portion and a series of scattered pulses generated from the probing pulses by the scattering of the chest portion, a receiving antenna configured to receive the scattered pulses, a mixer including a first input port configured to receive the reference pulses and a second input port electrically connected to the receiving antenna and a signal-processing module configured to generate cardiopulmonary activity signals after the scattered pulses and the reference pulses are processed by the mixer.

Abstract: An apparatus, system and method which use a portable sensor to monitor the physical and mental reactions of a person in motion. The physical and mental reactions in motion will be transformed into the related physical and mental characteristic vectors, which are used to build up a personalized physical and mental database. The database executes a self-learning algorithm to output a set of physical and mental weighting factors. After executing the set of physical and mental weighting factors and physical and mental characteristic vectors, an embedded calculator incorporated in the portable sensor gives a warning signal if an abnormal situation is detected.

Abstract: A non-contact apparatus for monitoring cardiopulmonary activity signals comprises a pulse-series generator configured to generate a series of probing pulses and a series of reference pulses, a transmitting antenna configured to emit the probing pulses to a chest portion and a series of scattered pulses generated from the probing pulses by the scattering of the chest portion, a receiving antenna configured to receive the scattered pulses, a mixer including a first input port configured to receive the reference pulses and a second input port electrically connected to the receiving antenna and a signal-processing module configured to generate cardiopulmonary activity signals after the scattered pulses and the reference pulses are processed by the mixer.