3 results about "Nonlinear channel" patented technology

A patient transport apparatus comprising a support frame, a base, a bracket coupled to the support frame and comprising a channel being non-linear, a frame assembly coupled between the support frame and the base and comprising a slidable member disposed in the channel, the slidable member being moveable between a plurality of different positions in the channel to place the support frame in a plurality of different poses relative to the base. The patient transport apparatus also comprises a sensor configured to detect the slidable member in the channel and produce a reading, as well as a controller coupled to the sensor and configured to receive the reading from the sensor, determine the position of the slidable member in the channel based on the reading, and determine the pose of the support frame relative to the base based on the determined position of the slidable member.

A device (100) for traversing a suspended cable (110) anchored at each end, and the device comprising: an open non-linear channel (130) for receiving, by a slotting action, the suspended cable, said non-linear channel defining a minor segment (165-2); a motor (135); and a drive mechanism (140), powered by the motor, arranged within the minor segment so as to contact the suspended cable when received by the non-linear channel and thereby to drive the device along the suspended cable.

The application provides a nanosecond micro-impulse generation method for chip electrostatic tolerance, relates to the technical field of detection systems, and establishes a low-energy linear channel model and a segmented nonlinear channel model of a triggered electrostatic protection clamp for a target test port of a measured chip, discretely decomposes a pre-distortion excitation instruction into a charge packet sequence containing a charge amount parameter, an energy parameter and a release time parameter, injects and forms a nanosecond micro-impulse waveform according to the release time, performs wideband sampling on port voltage and current, obtains an actual port waveform based on double-model inversion compensation, calculates an error, and updates the charge packet sequence in a closed loop until convergence output is obtained, meanwhile, port impedance and leakage response criterion extraction are realized through a pre-processing section, a main impulse section and a latch detection section, which are used for distinguishing soft breakdown and hard breakdown and generating a multi-port sensitivity distribution, and the method has the characteristics of controllable, reproducible and traceable waveform.