High density electrical interconnect system for photon emission tomography scanner
OwnerFyodor I. Maydanich, James Malaneyinventors
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Abstract
A high density of electrical interconnection together with well controlled electrical transmission characteristics, low emissivity from the cable and low susceptibility to external electromagnetic interference are obtained in a PET machine with an interconnection harness formed of a ribbon cable with an inner and outer shield. The inner shield together with alternate conductors of the ribbon cable provide a signal return and the outer shield provides an earth ground reducing the susceptibility of the conductors to external electrical noise and reducing emissions from the cable.
Claims11
An electrical cable comprising:
- a series of mutually insulated and parallel electrical conductors joined edgewise to form a flexible ribbon;
- a first conforming flexible electrical shield covering the ribbon;
- a flexible insulating layer covering the first conforming flexible electrical shield;
- and
- a second conforming flexible electrical shield covering the insulating layer.
A cable assembly providing electrical communication of a series of signals from a first electrical device to a second electrical device comprising:
- a series of first terminals associated with the first electrical device including multiple signal terminals and at least one signal return terminal and at least one earth ground separate from the signal return terminal;
- a series of second terminals associated with the second electrical device including multiple signal terminals and at least one signal return terminal;
- a series of mutually insulated and parallel electrical conductors joined edgewise to form a flexible ribbon, wherein the conductors are attached to the terminals so that electrical conductors carrying signal returns alternate with conductors carrying signals;
- a first conforming flexible electrical shield covering the ribbon and attached to a signal return terminal;
- an insulating layer covering the outside of the first conforming flexible electrical shield;
- and
- a second conforming flexible electrical shield covering the insulating layer and attached to the earth ground.
Dependencies are inferred from the claim text.