Tel Aviv University

Given Imaging Ltd.

Ben Zion Steinberg

Menachem Nathan

Amir Boag

Oren Levy

Ido Bettesh

This invention relates to methods and apparatus for localizing an in vivo imaging device by means of a single magnetic source coil assembly and a single magnetic detector coil assembly. This invention also relates to methods and apparatus to enable the use of a single magnetic source coil assembly to also transmit and receive information, images, and controls signals, as well as for the coil assembly to be used in DC-DC voltage conversion. A user interface with a display provides the user with the option of viewing selected images captured by the in vivo imaging device.

Localization of capsule with a synthetic source of quadrupoles and dipoles

A displacement sensor comprising at least one pair of co-planar photonic crystal waveguide (PCWG) sections aligned along or parallel to a common axis and separated by a gap, one PCWG section of a pair operative to perform a displacement relative to the other section of the pair. In some embodiments, the sensor is linear, comprising two PCWG sections separated by a gap that forms a cross PCWG, the displacement sensing performed preferrably differentially between two edges of the cross PCWG. In other embodiments, the sensor includes Mach Zehnder Interferometer (MZI) configurations with gaps between fixed and moving PCWG sections. Displacement induced changes in the gap widths are reflected in changes in an output parameter of the MZI.

Displacement sensor based on photonic crystal waveguides

A displacement sensor comprising at least one pair of co-planar photonic crystal waveguide (PCWG) sections aligned along or parallel to a common axis and separated by a gap, one PCWG section of a pair operative to perform a displacement relative to the other section of the pair. In some embodiments, the sensor is linear, comprising two PCWG sections seperated by a gap that forms a cross PCWG, the displacement sensing performed preferrably differentially between two edges of the cross PCWG. In other embodiments, the sensor includes Mach Zehnder Interferometer (MZI) configurations with gaps between fixed and moving PCWG sections. Displacement induced changes in the gap widths are reflected in changes in an output parameter of the MZI.

A dynamically controllable photonic crystal comprises at least one micro-cavity, and electrical means to induce carrier refraction in the vicinity of the micro-cavity. In the exemplary case when the photonic crystal is implemented in a semiconductor substrate, localized carrier refraction is achieved using field induced carrier injection or depletion into a carrier concentration column surrounding the micro-cavity. Preferably, if the substrate is silicon, the injection and depletion is achieved using various two or three terminal, unipolar or bipolar structures.

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Kfar Saba, Israel

Ben Zion Steinberg