Patents Examined by Dwight Alex C Tejano
  • Patent number: 7683954
    Abstract: A solid-state image sensor of a charge sorting method used in a time-of-flight measurement method, in which noise derived from background light, which is caused by the reflection light from the subject derived from background light is eliminated, reflection light from the subject derived from a predetermined light source, which is previously set in the solid-state image sensor, is effectively extracted as a signal component to achieve high sensitivity and low noise, which is a solid-state image sensor that is equipped with a plurality of charge-storage sections, discriminates photoelectrons generated by incoming light on the incoming timing and sort to the above-described plurality of charge-storage sections, and measures the timing of the incoming light, in which the sensor has: a plurality of capacitors that capable of conducting to the plurality of charge-storage sections; and a control section that controls a conducted state between the above-described plurality of charge-storage sections and the above-de
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: March 23, 2010
    Assignees: Brainvision Inc., Stanley Electric Co., Ltd.
    Inventors: Michinori Ichikawa, Takanori Tanite, Tadashi Kawata
  • Patent number: 7667757
    Abstract: A solid-state imaging device includes a photoelectric conversion unit 110, an analog shift register, and signal output units 131 and 132. The analog shift register is divided into a first transfer section 121 and a second transfer section 122 with a substantially central region of the analog shift register being set as a boundary. A common transfer section 123 is provided in the boundary between the first transfer section and the second transfer section. The common transfer section 123 selects, as a transfer path of signal charges transferred from the photoelectric conversion unit 110, either a first path through the first transfer section 121 or a second path through the second transfer section 122.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: February 23, 2010
    Assignee: Fujifilm Corporation
    Inventor: Katsumi Ikeda
  • Patent number: 7595830
    Abstract: In an imaging device having an all-pixel read mode for reading signals from all pixels and a pixel downsampling read mode for reading signals by appropriately discarding pixels, adjacent ones of pixels use a floating diffusion capacitance, an amplifying transistor, a reset switch and a selection switch in common. In the pixel downsampling read mode, not only a primary capacitance but also a photodiode in each pixel to be discarded are used as capacitances for storing signal charges transferred from transfer switches. This makes it possible to lower the gate voltage of the amplifying transistor as compared with the case of using only the primary capacitance as a capacitance for storing signal charges transferred from a transfer switch to reduce the sensitivity of the pixels, thereby reducing the occurrence of flicker.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: September 29, 2009
    Assignee: Funai Electric Co., Ltd.
    Inventors: Masaya Oita, Hiromichi Tanaka, Masafumi Kimata
  • Patent number: 7586523
    Abstract: A solid-state image sensor which includes a pixel section, AD converter, line memory, controller and synthesizer is disclosed. The line memory stores a digital signal output from the AD converter. The controller controls the pixel section and AD converter to subject analog signals of different exposure times to an AD converting process by use of the AD converter and transfer the thus AD-converted signals to the line memory in an accumulation period of charges of one frame. The synthesizer is supplied with digital signals of different exposure times from the line memory, compare a fist signal obtained by adding signals of short and long exposure times with a second signal obtained by amplifying the signal of short exposure time by the ratio of the signal of short exposure time to the signal of long exposure time, select a larger one of the compared signals and output the selected signal.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: September 8, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshitaka Egawa, Ryuta Okamoto, Shinji Ohsawa, Hiroshige Goto
  • Patent number: 7583303
    Abstract: An imaging device having a hybrid RGBYC color filter using a primary color system RGB filter and a complementary color system YC filter is composed. Four G filters that directly relate to resolution and that is close to a luminance signal that human eyes sense are arrayed in a checker shape so that the number of the G filters is four times larger than the number of filters of each of the other colors. An array shown in FIG. 10A is composed of low resolution rows (G, R, G, and B) and high resolution rows (C, G, Y, and G) that are alternately arrayed in each line. When signals are read if exposure times are varied for individual lines, the signals that are read can easily have a wide dynamic range. An array shown in FIG. 10B has two Gs, a low sensitivity color, and a high sensitivity color in each line and each row. Thus, the luminance difference is small in the horizontal direction and the vertical direction. Thus, the reading method in the array shown in FIG.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: September 1, 2009
    Assignee: Sony Corporation
    Inventors: Takami Mizukura, Naoya Katoh, Kenji Tanaka, Masaya Kinoshita, Yutaka Yoneda, Akira Matsui
  • Patent number: 7554583
    Abstract: A pixel signal having a k-th spectral characteristic at a pixel interpolation position occupied by a pixel signal having an h-th spectral characteristic is generated from a set of pixel signals arrayed in a two-dimensional plane, each having one of a plurality of spectral characteristics, by calculating a difference between low-frequency components, corresponding to a degree of correlation between pixel signals having the k-th and h-th spectral characteristics in a neighborhood of the pixel interpolation position (8r, 8g, 8b, 24k, 24h, 26), calculating a non-correlation value corresponding to a degree of non-correlation between the pixel signals having the k-th and h-th spectral characteristics in the neighborhood of the pixel interpolation position (7r, 7g, 7b, 23k, 23h, 25), and obtaining the pixel signal having the k-th spectral characteristic at the pixel interpolation position by using the calculated difference and the non-correlation value (27, 28, 29).
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: June 30, 2009
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tetsuya Kuno, Junko Makita, Hiroaki Sugiura, Narihiro Matoba, Masashi Tamura