Abstract: A drive tumbler comprises a hub having attached thereto a plurality of replaceable rim segments. The rim segments are supported by a plurality of raised blocks that are formed integral with the hub and serve to absorb the shear forces to which the tumbler is subject during operation.

Abstract: A local private network includes a chassis including a diskless, real-time based board including a memory. The memory downloads an executable program that runs in response to a form output, the memory further downloads a webserver. A host computer electrically coupled to the chassis through an Ethernet connection contains the form, the webserver, and the executable program.

Abstract: A diagnostic medical imaging device including a signal processor that includes an adaptive filter noise canceler that is used to reduce the additive electrical noise on low power bio-potential signals caused by a patient's respiration. A noise reference signal associated with the patient's respiration is adaptively filtered with only minimal time delay and subtracted from a noisy bio-potential signal that is acquired from the patient. The resultant signal is a clean bio-potential signal that may be used for, among other things, triggering an MRI scan. The noise reference signal is received by an adaptive filter having adjustable filter coefficients. The filter coefficients are adjusted using the clean bio-potential signal that acts an error signal.

Abstract: A method of filtering frequency encoded imaging signals includes receiving the frequency encoded imaging signals in the time domain and demodulating the frequency encoded imaging signals. The method further includes upsampling the frequency encoded imaging signals by an integer upsampling factor, reducing the bandwidth of the frequency encoded imaging signals, and downsampling the frequency encoded imaging signals by an integer downsampling factor. The frequency encoded imaging signals are resampled by a resampling factor substantially equal to the integer upsampling factor divided by the integer downsampling factor.

Abstract: A method of filtering frequency encoded imaging signals includes receiving the frequency encoded imaging signals in the time domain and demodulating the frequency encoded imaging signals. The method further includes upsampling the frequency encoded imaging signals by an integer upsampling factor, reducing the bandwidth of the frequency encoded imaging signals, and downsampling the frequency encoded imaging signals by an integer downsampling factor. The frequency encoded imaging signals are resampled by a resampling factor substantially equal to the integer upsampling factor divided by the integer downsampling factor.

Abstract: A diagnostic medical imaging device including a signal processor that includes an adaptive filter noise canceler that is used to reduce the additive electrical noise on low power bio-potential signals caused by a patient's respiration. A noise reference signal associated with the patient's respiration is adaptively filtered with only minimal time delay and subtracted from a noisy bio-potential signal that is acquired from the patient. The resultant signal is a clean bio-potential signal that may be used for, among other things, triggering an MRI scan. The noise reference signal is received by an adaptive filter having adjustable filter coefficients. The filter coefficients are adjusted using the clean bio-potential signal that acts an error signal.