Abstract: The present invention is concerned with a wireless transceiver for implantable medical devices, and has a first coil winding wound around its coil axis in a first direction, at least one second coil winding wound around its coil axis in a second direction non-parallel with the first direction, and at least one circuit board having at least one control circuit; wherein the first and the second coil windings are electrically connected to the control circuit of the circuit board respectively.

Abstract: The present invention discloses an integral anatomical and functional computed tomography imaging system, which includes an x-ray source, a rotational stand for a sample and an imager. The imager includes an x-ray and a gamma-ray scintillator, an image sensor for detecting photon from the scintillator and a pinhole collimator positioned between the rotational stand and the scintillator. During the anatomical imaging process, the x-ray penetrating through the sample will directly irradiate on the scintillator in x-ray mode. During the functional imaging process, the gamma-ray emitted from the radioisotope-injected sample will penetrate through the pinhole of the pinhole collimator and then irradiate on the scintillator in gamma-ray mode. For both cases, photons are generated by the scintillator and picked up by the image sensor.

Abstract: A programmable photo-coupler-isolated wide band modulator for high voltage power supply is disclosed, which utilizes a high voltage module to step up the input voltage and utilizes a wide band modulator connected with the high voltage module to modulate the high voltage output from the high voltage module for outputting a wide band high voltage, wherein the wide band modulator receives a modulator signal generated by a computer for modulating.

Abstract: A voltage transforming apparatus for receiving a system input voltage and generating a system output voltage is disclosed herein. The voltage transforming apparatus includes the following devices. Transforming device that is to generate module output voltage responsive to the rate of change of the magnetic flux induced by the system input voltage. The voltage transforming device including a first terminal having a first voltage and a second terminal having a second voltage. The first voltage is higher than the second voltage, and the output voltage of the voltage transforming device is generated responsive to the difference between the first voltage and the second voltage. The voltage transforming device is mechanically connected to prevent the movement. Coupling device for electrically coupling the voltage transforming device to form a serial connected voltage transforming device.

Abstract: The structure of a high voltage transformer is disclosed. The transformer structure has a magnetic core, a multi-layer printed circuit board (PCB), a conductor winding, a voltage doubling rectifier means, a magnetic means, a supporting means, and insulated oil. The multi-layer PCB has spiral coils used as a secondary winding. A conductor windings is used as a primary winding. The voltage doubling rectifier means includes an anode voltage doubling rectifier circuit and a cathode voltage doubling rectifier circuit which are respectively formed on a first and a second insulated boards. The two voltage doubling rectifier is used to increase the voltage gain. The magnetic means has a top magnetic cap and a bottom magnetic cap. The mullet-layer PCB and the voltage doubling rectifier means are interposed between the top and the bottom magnetic cap for decreasing the leakage magnetic flux. The breakdown distance can be maintained in an appropriate distance by using the supporting means.