摘要:
A solid state imager converts analog pixel values to digital form on an arrayed per-column basis. An N-bit counter supplies an N-bit DAC to produce an analog ramp output with a level that varies corresponding to the contents of the counter. A latch/counter or equivalent is associated with each respective column. A clock supplies clock signal(s) to the counter elements. When the analog ramp equals the pixel value for that column, the latch/counter latches the value. The black level can be pre-set in the latch/counter or can be subtracted separately to reduce fixed pattern noise. The pixels can be oversampled for some number of times, e.g., n=16, to reduce the thermal noise of the sensors. Also, two or more pixels sharing a common sense node may be binned together, and two (or more) pixels having different integration times may be combined to obtain an output signal with enhanced dynamic range.
摘要:
A solid state imaging system has at least one CMOS imager with first and second series of pixels in which the pixels of one series are offset, i.e., staggered, in respect to the pixels of the other series. Multiple imagers can be arrayed end to end, with jumper wires connecting the pixel output conductors or each so that the pixels feed into a common output amplifier for each series, to minimize chip to chip offset voltages. The pixels may be diagonally offset from one another, and a color imager can be constructed in which color ribbon filters are arranged diagonally across the imaging area. This arrangement minimizes color cross talk. An array of microlenses is situated with each microlens covering a plurality of the pixels. The different pixels under each microlens can be aligned along a diagonal. The different pixels under the same microlens can have different integration times, to increase the dynamic range of the imager(s).
摘要:
A solid state imaging system has at least one CMOS imager with first and second series of pixels in which the pixels of one series are offset, i.e., staggered, in respect to the pixels of the other series. Multiple imagers can be arrayed end to end, with jumper wires connecting the pixel output conductors or each so that the pixels feed into a common output amplifier for each series, to minimize chip to chip offset voltages. The pixels may be diagonally offset from one another, and a color imager can be constructed in which color ribbon filters are arranged diagonally across the imaging area. This arrangement minimizes color cross talk. An array of microlenses is situated with each microlens covering a plurality of the pixels. The different pixels under each microlens can be aligned along a diagonal. The different pixels under the same microlens can have different integration times, to increase the dynamic range of the imager(s).
摘要:
A solid state imager converts analog pixel values to digital form on an arrayed per-column basis. An N-bit counter supplies an N-bit DAC to produce an analog ramp output with a level that varies corresponding to the contents of the counter. A latch/counter or equivalent is associated with each respective column. A clock supplies clock signal(s) to the counter elements. When the analog ramp equals the pixel value for that column, the latch/counter latches the value. The black level can be pre-set in the latch/counter or can be subtracted separately to reduce fixed pattern noise. The pixels can be oversampled for some number of times, e.g., n=16, to reduce the thermal noise of the sensors. Also, two or more pixels sharing a common sense node may be binned together, and two (or more) pixels having different integration times may be combined to obtain an output signal with enhanced dynamic range.
摘要:
Improving the dynamic range of captured images is disclosed by using sub-pixel arrays to capture light at different exposures and generate color pixel outputs for an image in a single frame. Each sub-pixel array can include multiple sub-pixels. The sub-pixels that make up a sub-pixel array can include red (R) sub-pixels, green (G) sub-pixels, blue (B) sub-pixels, and in some embodiments, clear sub-pixels. Those sub-pixel arrays having clear sub-pixels effectively have a higher exposure level and can capture low-light scenes (for dark areas) better than those sub-pixel arrays without clear sub-pixels. Each sub-pixel array can produce a color pixel output that is a combination of the outputs of the sub-pixels in the sub-pixel array. Each sub-pixel in a sub-pixel array can have the same exposure time, or in some embodiments, individual sub-pixels within a sub-pixel array can have different exposure times to improve the overall dynamic range even more.
摘要:
The use of a Bayer pattern array in digital image sensors to enhance the dynamic range of the sensors is disclosed. Each Bayer pattern in the array can include three different pixels having a first exposure, and a fourth pixel (which is the same color as one of the other pixels in the array) having a second exposure. The dynamic range of the Bayer pattern array can be enhanced by using different exposure times for the pixels. Each pixel can capture only one channel (i.e. either red (R), green (G) or blue (B) light). Interpolation of neighboring pixels, including those having different exposure times, can enable the pixels in the Bayer pattern array to generate missing color information and effectively become a color pixel, and can allow the Bayer pattern array to have a higher dynamic range.
摘要:
Increasing the resolution of digital imagers is disclosed by sampling an image using diagonally oriented color sub-pixel arrays, and creating missing pixels from the sampled image data. A first method maps the diagonal color imager pixels to every other orthogonal display pixel. The missing display pixels can be computed by interpolating data from adjacent color imager pixels, and averaging color information from neighboring display pixels. This averaging can be done either by weighting the surrounding pixels equally, or by applying weights to the surrounding pixels based on intensity information. A second method utilizes the captured color imager sub-pixel data instead of interpolation. Missing color pixels for orthogonal displays can be obtained directly from the sub-pixel arrays formed between the row color pixels in the imager.
摘要:
A luggage cart includes a supporting tray and a latching mechanism. The latching mechanism includes a top seat, a fastening member, an actuating member, a bottom seat fixed to the supporting tray, and a latch bolt. The fastening member has a flange cap portion adapted for securing to a luggage container, and a shaft portion formed with a first locking part. The latch bolt is mounted to the bottom seat and is slidingly engaged with the actuating member. The actuating member is movable to move the latch bolt from a locking position, where the latch bolt engages the first locking part of the fastening member, to an unlocked position, where the latch bolt is disengaged from the first locking part to permit removal of the fastening member.
摘要:
The present invention relates to a benzbromarone or different pharmaceutically acceptable crystals thereof, or pharmaceutically acceptable solvates, salts, esters, ethers or clathrates thereof, or use of a pharmaceutical composition comprising any of the above in preparation of drugs, application thereof being for preparation of drugs for treating and preventing vertebrae cervicales diseases or lumbar disk herniation (LDH) in human.
摘要:
An anti-infective drug-macrolide derivate, preparation and uses thereof. Macrolide derivate, namely erythromycin ethylsuccinate crystalline hydrate. Preparation of erythromycin ethylsuccinate crystalline hydrate medicaments for the treatment and prevention of human or animal infectious diseases caused by Gram-positive or negative bacteria.