摘要:
An image pickup apparatus includes an image pickup device and a plurality of color filter groups associated with the device. Each of the filter groups has a different transmission characteristic. The pickup device generates an output signal representative of incident radiation. A color separating circuit separates color signals corresponding to the color filter groups from the output generated by the image pickup device. A control device adjusts the level of at least one of the signals separated by the color separation circuit and a dot-sequential signal forming circuit converts the signals, the levels of which are adjusted by the control device into a dot-sequential signal. The dot-sequential signal so formed is the result of separated color signals and benefits from less stringent frequency requirements for various switching, filtering, and gain control elements. Each of the plurality of color filter groups comprises a plurality of filter cells and the cells are repeatingly arranged at a predetermined pitch. The color separation device also includes sample and hold circuits for sampling and holding each of the color signals on the basis of the arrangement of the filter cells.
摘要:
An image pickup apparatus comprises a charge transfer type of image sensor having electrodes which can form a plurality of potential wells in each picture element of the photo-receiving surface including a plurality of picture elements; and a control circuit having a mode in that the electrodes are controlled so as to respectively form only one potential well in each of the picture element when storing charges and to sequentially read out the charges in each potential well, and a mode in that the electrodes are controlled so as to respectively form a plurality of potential wells in each of the picture elements when storing charges and to mix the charges in a predetermined plurality of potential wells and to sequentially read out them.
摘要:
A capacitor coupled circuit includes a power supply switch for switching power supply on; a coupling capacitor provided in a signal line; and a control circuit arranged to cause the capacitor to be charged or to be discharged in a short period of time according to the operation of the power supply switch. The arrangement enables the capacitor coupled circuit to obtain a stabilized constant output voltage in a short period of time after the power supply is switched on.
摘要:
The disclosed image pick-up device is provided with a scanning type image sensing arrangement having an image sensing area and a light-shielded area for obtaining an optical black reference, and control means for changing the scanning speeds between said image sensing area and light-shielded area.
摘要:
An imaging apparatus and a method of driving the same that can generate a digital data of a high resolution pixel signal are provided. The imaging apparatus includes: a pixel (10-1) for generating a signal by photoelectric conversion; a comparing circuit (30-1) for comparing a signal based on the pixel with a time-dependent reference signal; a counter circuit (40-1) performing a counting operating until an inversion of a magnitude relation between the signal based on the pixel and the time-dependent reference signal; and a selecting circuit (30-2) for setting a time-dependent change rate of the reference signal, according to a signal level of the signal based on the pixel.
摘要:
A thread hook and a looper thread holder are arranged on a rear side of a needle drop position of a sewing machine. When usual sewing is completed, the thread hook and the looper thread holder swing and move close to a looper. A hook part provided at a tip end of the thread hook holds a needle thread loop caught by the looper and positions it on an advance end side of the looper away from the needle drop position, and a thread receiving part provided at a tip end of the looper thread holder holds a looper thread extending from the looper to cloths and positions it on the front side away from the needle drop position. The sewing machine performs sewing for at least one stitch while maintaining positions of the needle thread loop and the looper thread.
摘要:
An imaging apparatus includes: a pixel generating a photoelectric conversion signal; a comparator comparing a base signal based on the pixel at a reset state with a time-changing first reference signal, and comparing an effective signal based on the pixel at a non-reset state with a time-changing second reference signal, the second reference signal having a larger time-changing ratio than that of the second reference signal; a counter counting a first count value until an inversion of a magnitude relation between the base signal and the first reference signal, and counting a second count value until an inversion of a magnitude relation between the effective signal and the second reference signal; and a correcting unit configured to correct the difference of resolutions of the first and second count values, and configured to correct the difference between the corrected first and second count values.
摘要:
A solid-state imaging apparatus comprising a plurality of pixels generating a photoelectric conversion signal, a column amplifying unit corresponding to columns of the pixels, for outputting a first and second signals generated by amplifying the photoelectric conversion signal at a smaller first gain and larger second gain respectively, an analog to digital converter (21) for converting the first and second signals from an analog signal to a digital signal, a comparing unit (224) for inputting the digital signal from the analog to digital converter, level-shifting into the same gain level the first and second signals converted by the analog to digital converter, and thereafter detecting a gain error between the level-shifted first and second signals, and a correction unit (226) for correcting the first and second signals based on the gain error.
摘要:
A method for preventing seam ravel of multi-thread chain stitches is provided. After normal sewing is terminated with a looper set in a forward movement state, a state in which a needle thread loop caught by the looper is subjected to position-holding at a position closer to a forward movement end of the looper than a descent position of a needle is maintained until the needle descends through the needle thread loop caught by the looper. Thereafter, the position-holding of the needle thread loop is released to permit a sewing action for at least one stitch, thereby allowing the needle thread loop to be self-looped with a needle thread held by the needle. This surely strongly prevents the seam ravel of multi-thread chain stitches formed by the single needle, irrespective of the dimension of tension applied to the needle thread and the looper thread.
摘要:
A thread hook and a looper thread holder are arranged on a rear side of a needle drop position of a sewing machine. When usual sewing is completed, the thread hook and the looper thread holder swing and move close to a looper. A hook part provided at a tip end of the thread hook holds a needle thread loop caught by the looper and positions it on an advance end side of the looper away from the needle drop position, and a thread receiving part provided at a tip end of the looper thread holder holds a looper thread extending from the looper to cloths and positions it on the front side away from the needle drop position. The sewing machine performs sewing for at least one stitch while maintaining positions of the needle thread loop and the looper thread.