摘要:
In a solid-state image sensing device, photoelectric conversion elements are two-dimensionally arrayed in a matrix on a semiconductor substrate. A transfer gate portion is arranged adjacent to each photoelectric conversion element to read signal charges stored in the photoelectric conversion element. A vertical CCD is arranged adjacent to the transfer gate portion to transfer the signal charges read from the photoelectric conversion element in a vertical direction. A horizontal CCD transfers the signal charges transferred from the vertical CCD in a horizontal direction. A charge detection portion detects the signal charges transferred from the horizontal CCD and outputs them. Four vertical transfer electrodes are formed adjacent to each other on the vertical CCD in a vertical transfer direction of the signal charges. The vertical transfer electrodes include first and second transfer electrodes adjacent to each other in the vertical transfer direction. The first vertical transfer electrode has a larger length than that of the second vertical transfer electrode and serves as a transfer electrode for controlling the transfer gate portion. A driving method therefor is also disclosed.
摘要:
A solid-state image pickup device in which many photoelectric converters are arranged in a shifted-pixel layout includes a vertical charge transfer path whose width is larger in a region in which an isolation area is disposed on both sides of the transfer path than in a region in which the isolation area is arranged on only one side thereof. This prevents an event in which the transfer efficiency and the saturation output of charge in the vertical charge transfer path are locally changed by the narrow channel effect.
摘要:
A solid-state image pickup device includes image pickup means having at least two sensor arrays disposed so as to be adjacent to each other, and horizontal charge transfer means having at least two horizontal registers which are disposed so as to be adjacent to the image pickup means and provided in association with the at least two sensor arrays respectively. A method of driving the solid-state image pickup device transfers the charges picked up at the respective pixels of the sensor arrays to the corresponding horizontal registers. After all the charges picked up at the respective pixels of the sensor arrays are transferred to the horizontal registers, the charges are successively transferred in the horizontal direction.
摘要:
A picture number of an image to be displayed on a liquid crystal display is compared with index data contained in an index section of a work memory to produce a display signal to be delivered to the liquid crystal display by using compressed or non-compressed data which has been left in a data section of the work memory when it is determined that the compared data coincided with each other. In this condition, both of a procedure for reading out the compressed data from an image recording section and a procedure for expanding the compressed data become unnecessary in case of utilizing non-compressed data, while only a procedure for reading the compressed data from the image recording section becomes unnecessary, though a procedure for expanding the compressed data is required in case of utilizing compressed data, so that it becomes possible to remarkably increase a speed in a procedure configured to display image, whereby instantaneous reproduction of image can be improved in either cases of compressed or non-compressed data.
摘要:
A color imaging device comprised of a plurality of light selective elements. The light selective elements include a first light selective element selective to light having a wavelength corresponding to the Orange region of the spectrum, a second light selective element selective to light having a wavelength corresponding to the Green region of the spectrum, and a third light selective element sensitive to light having a wavelength corresponding to the Blue region of the spectrum.
摘要:
Solid state image sensor suitable for enhancing sensitivity of charge coupled devices (CCDs) using phase shift of light, and method for fabricating the same, the solid state image sensor including a plurality of photodiodes for generating image charges from incident lights, a plurality of charge coupled devices provided between the photodiodes for transmitting the image charges in one direction, a first flat layer formed on an entire surface of the photodiodes and the charge coupled devices, a plurality of color filter layers formed on the first flat layer to be in correspondence to the photodiodes, a plurality of black layers formed on the first flat layer between the color filter layers, a plurality of phase shift layers selectively formed on the color filter layers to be in correspondence to the photodiodes alternately, a second flat layer formed on an entire surface including the phase shift layers, and a plurality of microlenses formed on the second flat layer to be in correspondence to the photodiodes.
摘要:
An aspect ratio variable solid state imaging device capable of reducing the frequency of a drive pulse of a horizontal register required for discharging signal charges in unnecessary portions at a small aspect ratio or of reducing a discharge period for signal charges in unnecessary portions in each horizontal period. In the mode of a small aspect ratio, in the horizontal blanking period, signal charges in the right side unnecessary portion on one line is mixed with signal charges in the right side unnecessary portion for the next line at the output end section of the horizontal register, and then the mixed signal charges are transferred to be discharged in the horizontal blanking period. In the horizontal transfer period, signal charges in the middle portion is horizontally transferred.
摘要:
An image sensing device comprising active pixels is disclosed, each pixel having a charge accumulation region for collecting charges generated by a photosensitive element such as a photodiode. A linear voltage to current converter, current mirrors, and a differential amplifier generate an output signal and minimize fixed pattern noise and improve the signal to noise ratio. Image quality is improved by reducing pixel blooming and image smearing through an improved method for resetting the pixels with a bias voltage reference which is less than Vdd. Active circuitry and physical device layout reduce the effects of IR voltage drops along the bus lines in a massive pixel array.
摘要:
A multi-cell cluster which includes a plurality of light-detecting unit cells and a single charge-integration and readout circuitry. Typically, each of the cells produces charge representative of the detected light. The circuit may be shared by the plurality of unit cells, and used to read-out the charge in real-time. The cluster may also Include a switch associated with each unit cell, such that each switch connects its associated unit cell to the circuit. The switch may also be controlled in a time-multiplexing manner. Each unit cell may include a photodetector, a photodiode, or a photogate. The circuit may include a shared storage device, a shared reset circuit, or a readout circuit. Typically, the shared storage device may be for accumulating the charge in the focal plane. The here-above described apparatus facilitates either static or dynamic, either local or global image resolution/sensitivity tradeoffs.
摘要:
Systems and methods allow driving a solid-state image pickup apparatus at high-speed operation by reducing a number of different samples in the horizontal and vertical directions. In an exemplary embodiment, three or more odd-numbered pixels are incorporated into a single block and signal charges from same color outputs are added within transfer registers such that an average center of the pixels coincides with a pixel at a center of the block. Three transfer electrodes are preferably provided for a column of a vertical transfer register in a part of the vertical transfer register on a side of the horizontal transfer register. The three transfer electrodes may be formed from one layer of three different gate electrode layers. The vertical registers may be arranged in a three column cycle. Preferably, an imaging device employing this structure has a switching mode of operation between a mode in which mixed charges that result from adding signal charges of predetermined pixels from one block are output and a normal mode for outputting all pixel information.