With Staggered Or Irregular Photosites Or Specified Channel Configuration Patents (Class 348/315)
  • Patent number: 6806904
    Abstract: 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.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: October 19, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yong Gwan Kim
  • Patent number: 6803960
    Abstract: An optically operated test structure for testing the charge transfer efficiency (CTE) of a charge coupled device (CCD) solid-state image sensor. A solid-state image sensor includes a substrate of a semiconductor material of one conductivity type having a surface. A plurality of spaced, parallel CCDs are in the substrate at the surface. Each CCD includes a channel region and a plurality of conductive gates extending across and insulated from the channel region. The conductive gates extend laterally across the channel regions of all of the CCDs and divide the channel regions into a plurality of phases and pixels. A drain region of the opposite conductivity type is in the substrate at the surface and extends along the channel region of at least one of the CCDs. A simply connected (rectangular) region of the plurality of spaced, parallel CCDs is photoactive. The CCDs outside this photoactive region are typically covered with metal or some other optically opaque material.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: October 12, 2004
    Assignee: Eastman Kodak Company
    Inventors: John P. Shepherd, Eric G. Stevens
  • Patent number: 6784469
    Abstract: A solid-state image pickup device includes: a plurality of light receiving portions arranged in a matrix, and a vertical transfer register which is four-phase driven by first, second, third and fourth transfer electrodes of a three-layer structure. The vertical transfer register is provided for each of columns of said light receiving portions. The first and third transfer electrodes of the first layer are alternately arranged in a charge transfer direction, and the adjacent two of the first and third transfer electrodes extend in parallel to each other between the light receiving portions. With this solid-state image pickup device, the accumulated charge capacity of each transfer region composed of the adjacent transfer electrodes for two-phases is equalized and the area of the light receiving portion is increased irrespective of variations in processed dimension between the transfer electrodes.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: August 31, 2004
    Assignee: Sony Corporation
    Inventors: Junji Yamane, Kunihiko Hikichi
  • Patent number: 6747701
    Abstract: The present invention relates to an image recording device (10), comprising: an image section (11) with a number of picture elements (pixels) arranged in rows and columns; a storage section (12) with image storage elements arranged in rows and columns for (temporarily) at least partially storing charge absorbed by the pixels, wherein the charge is transferred to the storage elements; wherein one or more gates close to the transition (13) between the image section and the storage section are lengthened.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: June 8, 2004
    Assignee: Dalsa Corporation
    Inventors: Jan Theodoor Jozef Bosiers, Agnes Catharina Maria Kleimann
  • Patent number: 6744539
    Abstract: In order to perform addition of the electric charges obtained from adjacent pixels in the same sensor row with a multiplexing structure type of solid-state image pick-up apparatus, a solid-state image pick-up apparatus of the present invention comprises: a first CCD register 10 that transfers electric charges acquired by a first light-receiving pixel row; a second CCD register 20 that transfers electric charges acquired by a second light-receiving pixel row; a multiplex section 30 that transfers the respective electric charges, transferred by the first CCD register 10 and second CCD register 20 toward a floating diffusion amplifier FD; and signal generator 3 that in the case of alternately-output mode, applies signals in opposite phase to each other to a final stage of the first CCD register 10 and a final stage of the second CCD register 20, respectively, and, in the case of an add-and-output mode, applies to the final stage of the second CCD register 20 a signal for accumulating the electric charge until a
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: June 1, 2004
    Assignee: Sony Corporation
    Inventors: Toshiaki Azuma, Katsunori Noguchi
  • Patent number: 6721005
    Abstract: A solid-state image sensor comprising an effective pixel area having light receiving portions which perform photoelectric conversion by taking in light and an optical black area which forms a reference black level without taking in light. The light receiving portions are formed inside electrode opening port portions which are formed through an electrode. Electrode opening port portions in the optical black area which are formed through the electrode are formed narrower than the electrode port portions in the effective pixel area. Alternatively, there may be no opening port portions formed in the optical black area.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: April 13, 2004
    Assignee: Sony Corporation
    Inventor: Toshiaki Higuchi
  • Patent number: 6721010
    Abstract: The present invention discloses a method and structure for accelerating image-sensing speed in a CCD image-sensing device. According to the present invention, specific shift-control electrodes (G2j−1 and G2j) are biased to serve as a block unit. After the CCD image-sensing device serially shifts out the charge packets actually corresponding to the image of a sensed object, the CCD image-sensing device can repeat the operation for image sensing without first shifting out the remaining or undesired charge packets, thereby accelerating image-sensing speed.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: April 13, 2004
    Assignee: Avision Inc.
    Inventors: Michael Chen, Ivan Wu
  • Publication number: 20040046883
    Abstract: In a solid-state image pick-up device of FIG. 1, a plurality of photoelectric converting devices 100 having almost square light receiving regions are provided like a tetragonal grid over the surface of a semiconductor substrate and a plurality of vertical transfer sections 200 are provided corresponding to the respective photoelectric converting device strings respectively. The vertical transfer section 200 includes a vertical transfer channel and a plurality of vertical transfer electrodes provided on the upper layer of the vertical transfer channel, and the vertical transfer channel is provided in winding shape between the photoelectric converting devices 100 constituting the corresponding photoelectric converting device strings.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 11, 2004
    Inventor: Nobuo Suzuki
  • Patent number: 6704051
    Abstract: To correct aberration generated in the optical system of an image pickup device on a photoelectric conversion device and correct light amount nonuniformity generated in the optical system, as the characteristic feature of the photoelectric conversion device, the aperture positions where photoelectric conversion is performed are different from each other in a photoelectric conversion area. The aperture ratio of the aperture region where photoelectric conversion is performed is changed in units of arrangement positions. The pitch of pixels is shifted to shift the position of the aperture region, or the pattern of a light-shielding layer is shifted stepwise to shift the position of the aperture region. Alternatively, the pitch of a pixel string in the horizontal or vertical direction is changed, and the pattern of the light-shielding layer is changed stepwise to shift the aperture position in both the horizontal and vertical directions in a plane.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: March 9, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hidekazu Takahashi
  • Patent number: 6703597
    Abstract: A method of resolving photoelectron coupling that results from the operation of a staggered charge-coupled device inside a scanner. The staggered charge-coupled device at least includes an optical sensor group comprising of an optical sensor array and a neighboring optical sensor array for scanning pixels. The method includes the step of: recording the quantity of photoelectrons transferred between a first quantity of photoelectrons captured by the optical sensor array and a second quantity of photoelectrons captured by the neighboring optical sensor array during a scanning time interval t. Thereafter, the quantity of transferred photoelectrons is subtracted from the first quantity of photoelectrons captured by the optical sensor array to obtain the correct quantity of photoelectrons captured by the optical sensor array during the scanning time interval t. Using the corrected value, accurate brightness value of the pixels scanned by the optical sensor array is obtained.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: March 9, 2004
    Assignee: UMAX Data Systems, Inc.
    Inventors: Shih-Huang Chen, Shih-Zheng Kuo
  • Publication number: 20040032521
    Abstract: The invention provides a signal charge-coupled device (CCD) sensing apparatus, including at least one first CCD shift register, one first photo sensor set, and one second photo sensor set. The first CCD shift register includes a plurality of first CCD components and a plurality of second CCD components. The first photo sensor set includes multiple first photo sensors for receiving a first light signal and generating multiple first corresponding charge signals. The first charge signals can be received by the first CCD components. On the other hand, the second photo sensor set includes multiple second photo sensors for receiving a second light signal and generating multiple second corresponding charge signals. The second charge signals can be received by the second CCD components. The CCD sensing apparatus can acquire higher scanned image quality under high resolution.
    Type: Application
    Filed: August 11, 2003
    Publication date: February 19, 2004
    Inventor: Yen-Cheng Chen
  • Patent number: 6693671
    Abstract: A structure for a fast-dump gate for charge coupled devices that does not require a separate contact to a drain region instead using the existing drain of a lateral overflow drain (LOD) typically used for antiblooming purposes. LOD structures are typically used on full-frame CCD image sensors. By using the LOD as the drain for a fast-dump gate, a separate opening in the gate electrode for the drain contact is avoided, thereby making the structure more compact. Gate control is provided by etching a hole in the CCD gate electrode over the overflow channel region of the LOD structure, and overlaying this with one of the subsequent gate electrode layers. This subsequent gate electrode is then used to control the fast-dump operation. Timing is shown for a two-phase CCD being operated with accumulation-mode clocking. Other types of CCDs and clocking schemes may be used.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: February 17, 2004
    Assignee: Eastman Kodak Company
    Inventors: Eric G. Stevens, William F. Desjardin
  • Patent number: 6687026
    Abstract: An optical sensor for a telecine application having a first group of odd sensor elements and a second group of even sensor elements where each sensor element is associated with a control electrode that controls the operation of the associated sensor element. An auxiliary control electrode is also associated with sensor elements of one of the two groups with a charge summing element being coupled to adjacent sensor elements assigned to the first and second group.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: February 3, 2004
    Assignee: Thomas Licensing S.A.
    Inventor: Wolfgang Steinebach
  • Publication number: 20040017498
    Abstract: A solid-state image pickup apparatus includes a timing signal generator for generating timing signals. Particular gates formed in each of photosensitive cells arranged in an image pickup section are driven independently or simultaneously in response to the timing signals. In an independent drive mode, outputs each having particular sensitivity are obtained from the different photosensitive regions of the individual cell by one time of exposure, covering a range of sensitivity as broad as one achievable with repeated photometry. This reduces the number of times of photometry for determining adequate exposure. In a simultaneous drive mode, outputs are produced in the usual manner. An exposure value calculator converts the resulting image signals to values having a predetermined format while an exposure parameter determining section determines exposure parameters if those values are adequate.
    Type: Application
    Filed: July 18, 2003
    Publication date: January 29, 2004
    Inventors: Hitoshi Yamashita, Naoki Kubo, Keizou Uchioke
  • Publication number: 20040017497
    Abstract: A plurality of low-sensitivity pixels 10 and a plurality of high-sensitivity pixels 20 are arranged like a tetragonal grid respectively, and are provided in positions shifted by ½ of an array pitch from each other in a row direction X and a column direction Y. The detected charges of the low-sensitivity pixel 10 and the high-sensitivity pixel 20 are transferred in the column direction Y by a vertical transfer section 31. The charges of the low-sensitivity pixel 10 and the high-sensitivity pixel 20 which are adjacent to each other in the column direction are transferred through the vertical transfer sections 31 which are different from each other.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 29, 2004
    Inventors: Nobuo Suzuki, Kazuyuki Masukane
  • Patent number: 6683293
    Abstract: Embodiments of the present invention are directed to an apparatus and a method for synchronizing the velocity of an image of a moving object or target and the clocking of image sensor elements used to track the moving target. In one embodiment, an imaging apparatus comprises a two-dimensional array of image sensor elements being configured to sense a first set of image elements of a target moving in a first direction with respect to the two-dimensional array of image sensor elements, to integrate light from the set of image elements into corresponding pixel values, and to shift the pixel values along the image sensor elements in the first direction according to a clock rate. A row of image sensor elements extends in the first direction to sense a second set of image elements of the target moving in the first direction.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: January 27, 2004
    Assignee: Fairchild Imaging
    Inventor: David D. Wen
  • Publication number: 20040012698
    Abstract: The invention provides an image pickup module comprising a semiconductor chip including a photosensor array, and an optical element for guiding light to the photosensor array, wherein the optical element includes a imaging unit and a light shielding layer, and adhesive is formed in a position between the semiconductor chip and the optical element but excluding the position of the light shielding layer in the incident direction of light, and the optical element and the semiconductor chip are fixed across the adhesive. The invention also provides an image pickup module comprising an optical element provided on a semiconductor chip, wherein the optical element includes a first lens and a second lens which is provided corresponding to the first lens.
    Type: Application
    Filed: March 1, 2002
    Publication date: January 22, 2004
    Inventors: Yasuo Suda, Ryo Yamasaki
  • Patent number: 6642965
    Abstract: A solid-state image sensing device includes a plurality of photoelectric conversion cells, a light-shielding member, and a plurality of openings. The photoelectric conversion cells have photoelectric converters for photoelectrically converting optical signals and are arranged in a matrix to accumulate the photoelectrically converted signal charges. The photoelectric converters are adjacent to each other at different pitches in a predetermined direction. The light-shielding member covers the photoelectric conversion cells arranged in a matrix. The openings are formed in the light-shielding member in correspondence with the photoelectric converters, and pass optical signals to the photoelectric converters. The openings are arranged at an equal interval in a predetermined direction.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: November 4, 2003
    Assignee: NEC Electronics Corporation
    Inventors: Tsuyoshi Nagata, Yasutaka Nakashiba
  • Patent number: 6642964
    Abstract: Geometric configurations for photosites found on photosensitive chips for creating electrical signals from an original image, as would be found, for example, in a digital scanner, copier, printer, facsimile machine, or other document generating or reproducing device. The photosensitive chips are mounted on a substrate to form a photosensitive array in a full width scanner or other photosensitive device. The geometric configurations reduce the Moiré patterns to provide a higher quality image.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: November 4, 2003
    Assignee: Xerox Corporation
    Inventors: Alain E. Perregaux, Jagdish C. Tandon, Roger L. Triplett, Xiao-Fan Feng
  • Patent number: 6606124
    Abstract: A solid-state imaging device includes photoelectric conversion portions set in a two-dimensional array; charge readout portions each provided adjacent to each of the photoelectric conversion portions; charge transfer portions each provided adjacent to each of the photoelectric conversion portions; and, charge transfer electrodes spaced apart from each other through a separation portion separated from the opening portion, each of which is also a charge readout electrode, provided with an opening portion over the corresponding one of the photoelectric conversion portions, and formed so as to cover, through an insulation film, the corresponding one of the photoelectric conversion portions, charge readout portions, charge transfer portions, and their peripheral portions.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: August 12, 2003
    Assignee: NEC Electronics Corporation
    Inventors: Keisuke Hatano, Toru Yamada
  • Publication number: 20030128279
    Abstract: In a solid-state image capturing device including a pixel array arranged in a row direction and a column direction orthogonal thereto, and a vertical register having a plurality of transfer electrodes which serves to read signal charges Qa, Qb, . . . generated by light receipt of each of pixels A, B, . . . and to sequentially transfer the signal charge in the column direction upon receipt of a transfer pulse, an electric potential well for a smear charge is generated and an unnecessary charge q in the vertical register is collected into the electric potential well for a smear charge before the signal charge is read from the pixels A, B, . . . onto the vertical register (a timing t707), an electric potential well for signal charge transfer is then generated and the signal charges Qa, Qb, . . . are read from the pixels A, B, . . .
    Type: Application
    Filed: December 27, 2002
    Publication date: July 10, 2003
    Inventor: Nobuo Suzuki
  • Patent number: 6583558
    Abstract: An electron tube 10 mainly includes a sleeve 12, an input plate 14 having a photocathode surface 18, a stem 16 and a CCD 20. A vacuum is provided in an interior of the electron tube 10. The CCD 20 is fixed onto the stem such that a rear surface B faces the photocathode surface 18. In the CCD 20, on a single conductive type semiconductor substrate 64, a buried layer 66, a barrier region 68, a SiO2 layer 70, a storage electrode layer 72, a transmission electrode layer 74, and a barrier electrode layer 76 are formed at their predetermined positions. A PSG film 78 is formed at an entire front surface A over these layers to flatten the surface of the CCD 20. Further, SiN film 106 mainly composed of SiN is formed above the PSG film over the entire front surface A.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: June 24, 2003
    Assignee: Hamamatsu Photonics K. K.
    Inventors: Motohiro Suyama, Akihiro Kageyama, Masaharu Muramatsu
  • Publication number: 20030112349
    Abstract: A two-dimensional sensor array of non-uniformly spaced sensors for using in digitizing images and avoiding moiré patterns within those images. The non-uniform distribution of the sensors allows the array to avoid having an inherent “frequency” that may interfere with details or harmonics present in the image source, thereby eliminating or reducing the occurrence of moiré patterns and the need for application of image processing to remove moiré patterns.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 19, 2003
    Applicant: International Business Machines Corporation
    Inventor: Viktors Berstis
  • Patent number: 6515268
    Abstract: A photoelectric converter with improved charge transfer efficiency from a light receiving portion. The photoelectric converter includes a light receiving portion having an output end and a gate portion having a first side and a second side that both define a readout gate width for the light receiving portion, where the first side of the gate portion confronts the output end of the light receiving portion. The photoelectric converter also includes a charge transfer portion formed to confront the second side of the gate portion, where the readout gate width of said gate portion is wider at the first side confronting said light receiving portion than at the second side confronting said charge transfer portion.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: February 4, 2003
    Assignee: Sony Corporation
    Inventors: Satoshi Kitayama, Kazushige Nigawara, Tsuyoshi Sasaki
  • Publication number: 20030007087
    Abstract: A light source device for use in an image capturing device such as an endoscope capable of reducing size and cost, and preventing heat generation at an illuminated position. An illumination unit of the endoscope includes LED light sources for emitting ultraviolet light, fluorescent fibers for generating red, green and blue light respectively by irradiation of the ultraviolet light, a sampling light source, and an excitation light source. Upon capturing a normal image, the ultraviolet light is emitted sequentially from the LED light sources to cause the fluorescent fibers to generate the red, green and blue light. The light of each color is passed through a light guide and irradiated on an observation area of a living body. Thereafter, reflected images attributable to the light of each color are captured with a CCD image capturing element of a charge multiplying type, and captured images are displayed on a monitor.
    Type: Application
    Filed: July 5, 2002
    Publication date: January 9, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Kazuo Hakamata, Masahiro Toida
  • Publication number: 20020191093
    Abstract: A CCD device incorporates Charge Multiplication in its CCD registers together with charge domain Dynamic Range compression. This structure preserves the high dynamic range available in the charge domain of these devices, and avoids limiting it by an inadequate voltage swing of the charge detection nodes and amplifiers. The Dynamic Range compression is logarithmic from a predetermined built in threshold and noiseless. The technique has an additional advantage of maintaining the compact size of the registers, and the registers may also include antiblooming devices to prevent blooming.
    Type: Application
    Filed: May 6, 2002
    Publication date: December 19, 2002
    Inventor: Jaroslav Hynecek
  • Publication number: 20020180877
    Abstract: An image acquisition apparatus has an imaging optical system. An imaging section has a plurality of imaging pixels arranged at non-uniform intervals within an imaging surface. The imaging section picks up an object image imaged by the imaging optical system, and converts the object image into image signals. An image restoration processing section has a coefficient memory in which a predetermined coefficient sequence is recorded, and an image restoration processing circuit which carries out computation processing between the coefficient sequence recorded in the coefficient memory and the image signals from the imaging section. The image restoration processing section generates an image in a desired display pixel arrangement.
    Type: Application
    Filed: March 25, 2002
    Publication date: December 5, 2002
    Inventor: Susumu Kikuchi
  • Patent number: 6480229
    Abstract: Most camera systems only record an image from a limited viewing angle. A new panoramic camera apparatus is disclosed that instantaneously captures a 360 degree panoramic image. In the camera device, virtually all of the light that converges on a point in space is captured. Specifically, in the camera of the present invention, light striking this point in space is captured if it comes from any direction, 360 degrees around the point and from angles 50 degrees or more above and below the horizon. The panoramic image is recorded as a two dimensional annular image. Furthermore, various different systems for displaying the panoramic images and distributing the panoramic images. Specifically, methods and apparatus for digitally performing a geometric transformation of the two dimensional annular image into rectangular projections such that the panoramic image can be displayed using conventional methods such as printed images and televised images.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: November 12, 2002
    Assignee: Be Here Corporation
    Inventors: Edward Driscoll, Jr., Howard Morrow, Alan J. Steinhauer, Willard Curtis Lomax
  • Patent number: 6462779
    Abstract: A linear image sensor comprising a linear array of photosites adjacent to a charge coupled device (CCD) that is preferably a two phase CCD with a transfer gate between the array of photosites and the CCD with an output amplifier situated at the end of the CCD. At least one of the phases is divided into a split phase having two sets of electrically isolated gates that can be operated as a single phase or as two independent phases. The linear sensor operates in a reduced resolution mode by summing charge packets from adjacent photosites wherein the split phase functions as essentially two alternating phases with the phase that is not split being held at a D. C potential.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: October 8, 2002
    Assignee: Eastman Kodak Company
    Inventor: Robert H. Philbrick
  • Patent number: 6441849
    Abstract: A photographing lens focuses and forms incident light from a photographed body as an image on an image pickup face. An image pickup element photoelectrically converts the incident light focused and formed as an image by the photographing lens and converts the incident light to an image signal. A first control section obtains a first image signal by reading the image signal from each of pixels of a first area in all image pickup areas of the image pickup element. A second control section obtains a second image signal by reading the image signal from each of pixels of a second area smaller than the first area in all the image pickup areas of the image pickup element. A display section displays the first image signal obtained by the first control section. A third control section controls a level of the first image signal obtained by the first control section and a level of the second image signal obtained by the second control section such that these levels are substantially equal to each other.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: August 27, 2002
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Hidetoshi Fukuda
  • Publication number: 20020113889
    Abstract: One horizontal CCD register is provided for a plurality of vertical CCD registers. The horizontal CCD register has horizontal transfer electrodes in such a manner that transfer electrodes that are provided for each pair of vertical CCD registers adjacent to each other are independent of each other electrically. The eight transfer electrodes are supplied with eight kinds of horizontal transfer pulse signals, respectively. An operation that the horizontal CCD register consecutively outputs consecutive signal charges in the same manner as in the conventional two-phase driving method and an operation that the horizontal CCD register outputs consecutive signal charges while mixing desired ones are performed selectively by controlling the eight kinds of horizontal transfer pulse signals properly.
    Type: Application
    Filed: January 30, 2002
    Publication date: August 22, 2002
    Inventor: Naoki Nishi
  • Publication number: 20020113888
    Abstract: An image pickup apparatus including a pixel area including a plurality of pixels, and a substrate on which the pixel area is integrated, wherein the centers of the pixel area and substrate substantially coincide with each other. This apparatus can attains reduction of the size thereof.
    Type: Application
    Filed: December 17, 2001
    Publication date: August 22, 2002
    Inventors: Kazuhiro Sonoda, Hidekazu Takahashi
  • Patent number: 6437307
    Abstract: A rectangular image sensor member with a predetermined length and width is provided, the rectangular image sensor member including a light sensitive surface; a circuit section; a wiring section for connecting the circuit section to an external circuit; a first surface portion in which the circuit section and wiring section are arranged; and the light sensitive surface being arranged outside of the first surface portion.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: August 20, 2002
    Assignee: Fraunhofer-Gesellschaft zur Forderung zur Angewandten Forshung e.V.
    Inventors: Hans Bloss, Heino Möller
  • Publication number: 20020105586
    Abstract: In a solid-state image pickup device, third transfer electrodes are disposed in parallel to vertical transfer registers, and second transfer electrodes are disposed vertically to the vertical transfer registers. These transfer electrodes are also formed on the read-out gate portions to supply a driving voltage for reading out signal charges from photoelectric conversion elements. On the basis of the driving voltage applied to both the third and second transfer electrodes, the read-out of the signal charges to the vertical transfer registers is carried out. At the portion where the read-out of the signal charges is carried out, the transfer electrode at the read-out gate portion side and the sensor area of the photoelectric conversion element are formed so as to be adjacent to each other. At the portion where no read-out of signal charges is carried out, an offset area is provided between the transfer electrode at the read-out gate portion side and the sensor area of the photoelectric conversion element.
    Type: Application
    Filed: December 11, 2001
    Publication date: August 8, 2002
    Inventor: Kouichi Harada
  • Publication number: 20020097330
    Abstract: A photosensor assembly has charge transfer gates that are segmented into multiple sections. Individual sections can be controlled. For a small image, only the appropriate sections of the charge transfer gates are used to transfer charges from the photosensors to charge shift registers. The charge shift registers shift the charges toward a node for analog-to-digital conversion. When all the charges have been shifted beyond the appropriate sections of the charge transfer gates, the sections of the charge transfer gates can be activated again. As a result, multiple scanlines of the small image may be multiplexed onto the charge shift register. In the steady state, only the charges from a small section of the image are converted, thereby reducing processing time. Excess charges in photosensors that are not being used are drained into overflow drains.
    Type: Application
    Filed: January 25, 2001
    Publication date: July 25, 2002
    Inventors: Kurt E. Spears, Douglas L. Franz
  • Publication number: 20020085103
    Abstract: A color shooting solid state image pickup apparatus is composed by using a solid state image pickup device having a number of color pixels disposed in a plurality of rows and columns in a pixel shift layout with distributing at least one color-type color pixels in a square lattice pattern aligned in row and column directions and by using a video signal proceeding unit being able to perform interpolation processes using color information obtained from pixel signals output from the solid state image pickup device excepting one piece of color information obtained from pixel signals of the color pixels distributed in a square lattice pattern. A moving image having a smooth motion can be reproduced on a monitor even if the process performance of the video signal proceeding unit is not improved so much.
    Type: Application
    Filed: December 20, 2001
    Publication date: July 4, 2002
    Applicant: Fuji Photo Film Co., Ltd.
    Inventors: Ryuji Kondo, Tetsuo Yamada
  • Patent number: 6333760
    Abstract: An area-isolation type solid-state image pickup device is such that an image pickup area is formed on an element formation surface of a semiconductor chip in a way to correspond to an optical image configuration of a subject, the semiconductor chip serving as an image pickup element, and an element drive circuit area and signal processing circuit area formed on a section other than the image pickup area. By doing so it is possible to fully utilize elements on an element formation surface of a semiconductor chip without ruining the element and hence to improve an efficiency with which a semiconductor device is manufactured.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: December 25, 2001
    Assignee: Kawasaki Kaisha Toshiba
    Inventors: Takashi Terui, Tadashi Sugiki
  • Patent number: 6236434
    Abstract: Photosensor rows are disposed in such a manner that one photosensor row is shifted by a half of a layout pitch of photosensors, relative to another adjacent photosensor row. Column direction charge transfer devices are disposed in such a manner that two column direction charge transfer devices are disposed between adjacent two photosensors in the row direction and one column direction charge transfer device is disposed between obliquely adjacent two photosensors.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: May 22, 2001
    Assignees: Fuji Photo Film Co., Ltd., Kabushiki Kaisha Toshiba
    Inventor: Tetsuo Yamada
  • Patent number: 6229567
    Abstract: A charge coupled device of this invention includes photodiodes, VCCDs for shifting the image charges generated in the photodiodes in one direction or in the reverse direction, first HCCD formed on one sides of the VCCDs transmitting the image charges from the VCCDs in one direction, and second HCCD formed on the other side of the VCCDs transmitting the image charges to the VCCDs in the reverse direction.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: May 8, 2001
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Chan Park, In Kyou Choi
  • Patent number: 6215522
    Abstract: A method of acquiring and processing a satellite observation image of the earth by means of at least one strip or a matrix of detectors of the charge transfer type travelling over an observed zone, in which a plurality of pixels are acquired, which pixels are sampled in a staggered configuration, the method being characterized in that the line pitch and the column pitch of said staggered sampling are such that the image spectrum is situated mainly in a zone of the Fourier plane where the modulation transfer function is meaningful and where spectrum aliasing is limited.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: April 10, 2001
    Assignee: Centre National d'Etudes Spatiales
    Inventors: Bernard Rouge, Christophe Latry, Jean-Claude Favard, Gilbert Pauc
  • Patent number: 6201573
    Abstract: In a solid-state imaging apparatus of the present invention, after an integration operation is started with an integration circuit by setting a reset instruction signal at logical zero, charges stored in a light receiving device are discharged by selecting this light receiving device. A value of an integration signal obtained by an integration operation of an integration circuit is compared with a reference value by a comparing circuit. A capacitance control section informs a capacitance instruction signal to a variable capacitor section of the integration circuit in response to a comparing result. A feedback loop is formed, which consists of the integration circuit, the comparing circuit, and a capacitance control circuit. When the value of the integration signal agrees finally with the reference value within resolution, the capacitance control section outputs a value in accordance with the capacitance instruction signal. This value is sequentially read out through a horizontal reading-out section.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: March 13, 2001
    Assignee: Hamamatsu Photonics K. K.
    Inventor: Seiichiro Mizuno
  • Patent number: 6201574
    Abstract: A device for omnidirectional image viewing providing pan-and-tilt orientation, rotation, and magnification within a hemispherical field-of-view that utilizes no moving parts. The imaging device is based on the effect that the image from a fisheye lens, which produces a circular image of an entire hemispherical field-of-view, can be mathematically corrected using high-speed electronic circuitry. More specifically, an incoming fisheye image is captured on a Charge Coupled Diode array in such a way as to remove the distortion caused by the lens by locating the picture pickup elements in a nonlinear manner described herein. As a result, this device can accomplish the functions of pan, tilt, rotation, and zoom throughout a hemispherical field-of-view without the need for any mechanical mechanisms. The preferred embodiment of the image capture device can provide corrected images at standard video frame rates, compatible with standard video equipment.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: March 13, 2001
    Assignee: Interactive Pictures Corporation
    Inventor: H. Lee Martin
  • Patent number: 6184929
    Abstract: A solid state imaging device comprising: a plurality of photosensitive pixels for scanning an optical image signal falling thereon and converting the same photoelectrically which are arranged in parallel to one another in a main scan direction, wherein the photosensitive pixels are respectively formed in a triangle or in a trapezoid, the two mutually adjoining ones of the photosensitive pixels are positioned in point symmetry in which the two mutually adjoining photosensitive pixels are rotated in 180° about a point from each other, and the oblique sides of the two mutually adjoining photosensitive pixels are opposed to and in contact with each other.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: February 6, 2001
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Satoshi Noda, Izumi Takashima, Hisahiro Takahagi
  • Patent number: 6169577
    Abstract: A color CCD solid-state image pickup device having a color filter array such that it is not possible to mix pixels adjacent in the column direction. Even rows and odd rows of pixels arrayed in a matrix respectively have the same filter arrays and it is thereby made possible for signal charges of light-receiving parts in pixels of a Kth row (K being a positive integer) and signal charges of light-receiving parts in pixels of either of the K±2th rows to be mixed and vertically transferred in the vertical shift registers.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: January 2, 2001
    Assignee: Sony Corporation
    Inventor: Tetsuya Iizuka
  • Patent number: 6118483
    Abstract: An image sensing apparatus with an image sensor which comprises a plurality of sensors (47) each provided on each of pixel (37) forming a photo-receptive area (36), the sensor generating an electric signal in response to brightness of incident light from a subject; and a plurality of dual-function CCDs (40A-40H) for signal storage and read-out connected to the sensors, respectively, the dual-function CCDs each comprising a plurality of charge storage elements. The dual-function CCDs are of substantially linear shape, elongated over two or more of the pixels, and arranged parallel to each other. During an image sensing process, electric signals generated in the sensors of the pixels are transferred parallel in one direction by the plurality of dual-function CCDs, whereby the electric signals generated in the sensor are stored in the charge storage elements of the dual-function CCDs.
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: September 12, 2000
    Inventor: Takeharu Etoh
  • Patent number: 6097433
    Abstract: Shunt wirings (12) in the form of a conductive light intercepting film which covers over vertical CCD registers and also serves to supply power, project into locations between adjacent photoelectric transducers (11) in the vertical direction, and the distance between the projecting portions of adjacent ones of the metal wirings is set to 0.2 .mu.m or less and is limited to a distance with which an electric field between adjacent ones of the metal wirings is 10.sup.7 V/cm or less and the adjacent metal wirings do not suffer from short-circuiting.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: August 1, 2000
    Assignee: NEC Corporation
    Inventors: Shinichi Kawai, Michihiro Morimoto, Masayuki Furumiya, Chihiro Ogawa, Keisuke Hatano, Yasuaki Hokari, Takashi Sato, Nobuhiko Mutoh, Ichiro Murakami, Shinobu Suwazono, Hiroaki Utsumi, Kouichi Arai, Kozo Orihara, Nobukazu Teranishi, Takao Tamura
  • Patent number: 6097434
    Abstract: A method for managing digital graphical data includes defining a first pixel using a characteristic in a first set of sub-pixels. A second pixel adjacent to the first pixel is defined using the characteristic in a second set of sub-pixels.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: August 1, 2000
    Assignee: Intel Corporation
    Inventor: William C. DeLeeuw
  • Patent number: 6075565
    Abstract: An electronic still camera requires a solid-state image sensing apparatus capable of providing a higher-speed pickup image signal having a high vertical resolution. In a line reducing operation to reduce the number of lines of the pickup image signal to be output by applying read-out pulses to read-out gate units located at predetermined intervals in order to read out only signal electric charge from sensor units for picture elements arranged in the vertical direction on some lines, a vertical CCD is driven by a combination of a pair of vertical transfer clock signals .o slashed.V1 (.o slashed.V1') and .o slashed.V3 (.o slashed.V3') having phases opposite to each other and another pair of vertical transfer clock signals .o slashed.V2 and .o slashed.V4 also having phases opposite to each other, allowing the overlap period twice the vertical transfer clock signals to be lengthened.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: June 13, 2000
    Assignee: Sony Corporation
    Inventors: Hiroaki Tanaka, Tomio Ishigami
  • Patent number: 6049357
    Abstract: A solid state image pickup apparatus is constructed by arranging a plurality of photoelectric converting pixels each for accumulating charges produced by receiving a light energy and for amplifying the charges. Timings to start and finish the accumulation of the charges for each pixel in a photoelectric converting section are set to be equal to or slightly deviated from the accumulation timing. For this purpose, the apparatus has: a signal accumulating section in which signal accumulating cells having transistors are arranged; transfer sections 26, 29, and 31 each for transferring the signals of the photoelectric converting pixels as voltages to the control electrodes of the signal accumulating cells; and a reading circuit for outputting the signal from one of the main electrodes of the transistors of the signal accumulating cells.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: April 11, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventor: Mahito Shinohara
  • Patent number: 6005619
    Abstract: Quantum efficiency in an active pixel sensor improved by proper sizing and shaping of the contacts. The photodiode elements are formed of special shapes that are optimized for obtaining diffusion of charge, rather than obtaining the charge directly. Photogates are formed with a thinned polysilicon covering.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: December 21, 1999
    Assignee: Photobit Corporation
    Inventor: Eric R. Fossum