Patents Represented by Attorney Ronald Fish
  • Patent number: 4949301
    Abstract: A RAM buffer controller for managing the address input lines of a RAM buffer to simulate the operation of two FIFO's therein. Apparatus is included for allowing random access by a node processor in a local area network node using the RAM buffer controller to manage "transmit and receive" FIFO's to have random access to any address in the address space of the buffer without restriction to FIFO boundaries. Apparatus is also included for transmitting packets from said buffer organized into one or two linked lists. Further, apparatus is included for allowing independent initialization of any of the pointers in the RAM buffer controller which are not currently selected, and for allowing software requests for read or write access by the node processor.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: August 14, 1990
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Sunil P. Joshi, Venkatraman Iyer
  • Patent number: 4681742
    Abstract: A machine for transferring liquids to and from the wells of assay trays in a controlled, automated manner and a solid phase assay tray for use with the machine. The machine includes a horizontally translatable table (15) that holds the tray (46), a plurality of liquid dispensing manifolds (54) for dispensing liquids into the tray wells (50) and an aspirating manifold (65) for aspirating liquid from the well. The dispensing and aspirating manifolds are mounted on a vertically translatable head (16) above the table. Each dispensing manifold is equipped with a row of dispensing tubes (56) and is connected via a pump (58) to a liquid container (62). The aspirating manifold is equipped with a row of aspirating tube (66) and is connected via a pump (69) to a waste liquid receptacle (73). A microprocessor (85) controls the movements of the table and manifolds and operates the pumps.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: July 21, 1987
    Assignee: Cetus Corporation
    Inventors: Larry J. Johnson, Stephen R. Coates, Rueyming Loor
  • Patent number: 4654269
    Abstract: There is disclosed herein a stress relieved intermediate insulating layer consisting of one or more layers of spun-on glass lying over a metalization pattern. The spun-on layers are allowed to crack from thermal stress imposed upon the structure. The cracks in the spun-on layers are then filled with a glass layer deposited by CVD or LPCVD.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: March 31, 1987
    Assignee: Fairchild Camera & Instrument Corp.
    Inventor: William I. Lehrer