摘要:
A content addressable memory (CAM) can include a CAM memory array having both a data field and a mask field. A multiplexer (MUX) can selectively load data from either a register or an external data input to one or both fields of the CAM memory array.
摘要:
Electronic devices may include image sensors and processing circuitry. Image sensors may be used to capture multiple exposure images. Processing circuitry may be used to combine multiple exposure images into high-dynamic-range images. A motion correction method is provided that detects motion between multiple exposure images without using a frame buffer. A noise model is used to separate noise from motion for more accurate motion detection. A dilation operator may be used to enlarge a motion mask generated by the motion detector. Motion-corrected images may be generated from the multiple exposure images using a soft switch based on the motion strength. Motion-corrected multiple exposure images may be combined to generate a motion-corrected HDR image. A smoothing filter may be applied to the motion region of the motion-corrected HDR image. A blooming correction may be used to eliminate color artifacts in the motion-corrected HDR image.
摘要:
An ablation apparatus includes a catheter, a conductor arrangement provided along the catheter, and one or more electrodes provided at a distal end of the catheter. A flexible structure maintains the one or more electrode elements in a spaced relationship relative to an inner wall of the renal artery when in a deployed configuration. Each electrode is coupled to the conductor arrangement and configured to deliver energy sufficient to ablate perivascular renal nerve tissue. The flexible structure may comprise a basket structure and at least one electrode is situated within the basket structure. The flexible structure may comprise a tube structure having spaced-apart electrically non-conductive segments, and at least one electrode is situated between adjacent electrically non-conductive segments.
摘要:
A catheter arrangement includes a flexible shaft having a length sufficient to access a patient's renal artery relative to a percutaneous access location. A cooling arrangement is provided at a distal end of the shaft and dimensioned for deployment within a renal artery. The cooling arrangement is configured to freeze tissue of a wall of the renal artery while target tissue adjacent the renal artery wall including perivascular renal nerve tissue remains unfrozen. A microwave emitter is configured to propagate microwave energy through the frozen renal artery wall to heat the unfrozen target tissue to a temperature sufficient to ablate perivascular renal nerve tissue included within the target tissue with no or negligible thermal damage to at least an inner wall of the renal artery.
摘要:
A dual input AC/DC power converter (10) having dual inputs (12, 14) adapted to receive both an AC and DC input and provide a selectable DC voltage output (16) and a second DC output (18). The dual input AC/DC power converter (10) comprises a power converter circuit (20) having an AC-to-DC converter (22), a DC-to-DC booster converter (24), a feedback circuit (26), a filter circuit (25) and a DC-to-DC buck converter (28). Advantageously, the power converter (10) resolves many of system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the power converter (10) also advantageously includes dual output voltage terminals (16/18) to allow for multiple mobile devices of varying power requirements to be powered, simultaneously, by a single converter.
摘要:
A development tool enables a device database to be created, managed, and deployed to a device as part of the a device project. The device database may have an installation property which provides logic for installing the device database at the device. Additionally, stored procedures and triggers may be registered with the device database. The registered stored procedures and triggers may be embedded in the device database and deployed to the device along with the device database.
摘要:
A composite biomaterial having a continuous metal sheet with arcuate members that define a first fenestration pattern, and a polymer layer over at least one surface of the continuous metal sheet. The arcuate members elastically stretch to allow the continuous metal sheet to bend in more than one axis without buckling or wrinkling.
摘要:
A development tool enables a device database to be created, managed, and deployed to a device as part of the a device project. The device database may have an installation property which provides logic for installing the device database at the device. Additionally, stored procedures and triggers may be registered with the device database. The registered stored procedures and triggers may be embedded in the device database and deployed to the device along with the device database.
摘要:
A method and apparatus of combining multiple exposure images by applying a transfer function to pixel output signals from pixels in a pixel array, the pixel output signals from each pixel including at least a first pixel output signal generated in response to a first exposure time and a second pixel output signal generated in response to a second exposure time.
摘要:
A composite biomaterial having a continuous metal sheet with arcuate members that define a first fenestration pattern, and a polymer layer over at least one surface of the continuous metal sheet. The arcuate members elastically stretch to allow the continuous metal sheet to bend in more than one axis without buckling or wrinkling.