Patents by Inventor Roland J. Handy

Roland J. Handy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4712137
    Abstract: A high density charge coupled device imaging array 88 with a bilinear array of photosites on a single integrated circuit chip is utilized in an image scanning configuration. Offset photosites 90a, 94a in the two separated rows are coupled via transfer gates 98, 106 to storage registers 104, 108 and then to two shift registers 110, 112, and via transfer gates 96 directly to two shift registers 100, 102 in a quadrilinear array. The output of these four shift registers 110,102,110,112 are multiplexed to generate a single output pulse train representative of the information scanned. By separating the offset rows 90, 94 of photosites by a row 92 therebetween, the necessity for accurate alignment of the photosite areas is reduced.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: December 8, 1987
    Assignee: Xerox Corporation
    Inventors: Narayan K. Kadekodi, Abd-El-Fattah A. Ibrahim, Roland J. Handy, Jagdish C. Tandon
  • Patent number: 4631739
    Abstract: A charge coupled device (CCD) amplifier is utilized for amplification of charge packets as small as 500 electrons into usable signals. Very little noise is injected into the signal. The charge amplifier consists of two connecting electrodes, one designated as the detector G.sub.1 and the other designated as the response G.sub.2, physically separated by any convenient distance on the same LSI chip surface on which an NMOS field effect transistor (FET) is attached. Also coupled to the FET is another electrode G.sub.3 designated as the amplifier gate. The charge amplifier structure is embedded in the silicon dioxide layer, with the detector response, and amplifier electrode being located some convenient distance above the silicon-silicon dioxide interface.
    Type: Grant
    Filed: November 28, 1984
    Date of Patent: December 23, 1986
    Assignee: Xerox Corporation
    Inventor: Roland J. Handy
  • Patent number: 4623928
    Abstract: A unique charge coupled device imager is utilized to provide high density, large dynamic range recording, with fast response time by injecting the photoelectric detected charge directly from the photosite area to the output shift register. In essence, therefore, the area beneath the photosite used for storage of the injected charge is, in fact, the output shift register, in real time.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: November 18, 1986
    Assignee: Xerox Corporation
    Inventor: Roland J. Handy
  • Patent number: 4438457
    Abstract: A high density charge coupled device imaging array 58 with a bilinear array 60, 62 of photosites on a single integrated circuit chip is utilized in an image scanning configuration. Offset photosites 60a, 62a in two rows are coupled via transfer gates 64 to storage register 72 and then to two shift registers 74, 76, and via transfer gates 66 directly to two shift registers 68, 70 in a quadrilinear array. The output of these four shift registers 68, 70, 74, 76 are multiplexed to generate a single output pulse train representative of the information scanned.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: March 20, 1984
    Assignee: Xerox Corporation
    Inventors: Jagdish C. Tandon, Narayan K. Kadekodi, Abd-El-Fattah A. Ibrahim, Roland J. Handy, James C. Stoffel
  • Patent number: 4272759
    Abstract: Utilizing a plurality of analog to digital converter cells with transfer gates as implemented by large scale integrated circuit techniques incorporating charge coupled device technology, a 16 bit or larger analog to digital converter is achieved. On a single integrated circuit chip, the necessary A/D cells are formed, whereby in each cell gate and charge packet transfer paths allow for the analog to digital conversion. With transfer gates coupling the A/D cells, the multi-bit A/D conversion register is constructed. Digital voltage levels indicative of logic 0's or logic 1's are generated from varying analog charge levels applied.
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: June 9, 1981
    Assignee: Xerox Corporation
    Inventor: Roland J. Handy
  • Patent number: 4240068
    Abstract: An analog to digital converter as implemented by large scale integrated circuit techniques utilizing charge coupled device technology. On a single integrated circuit chip, the necessary gate and charge packet transfer paths are formed to allow for the analog to digital conversion. Depending on the amount of charge transferred from one location to the next the two outputs will denote a digital voltage level indicative of logic 0 or logic 1.
    Type: Grant
    Filed: June 23, 1978
    Date of Patent: December 16, 1980
    Assignee: Xerox Corporation
    Inventor: Roland J. Handy