Patents Assigned to Brian A. Coghlan
  • Patent number: 5394536
    Abstract: A stable memory circuit which includes a pair of memory banks (2(a)) and (2(b)) each having eight arrays of eight VRAMs (3). Each VRAM (3) is dual-ported and includes a processor port connected to a processor bus (6) and a stable memory port connected to a stable memory bus (7). Accordingly, stable memory operations such as copying operations may be carried out on the stable memory bus (7) concurrently with conventional random accesses by a host processor via the processor port (6) and with very little use of processor time. Further, the stable memory ports of VRAMs (3) are serial ports and each memory bank (2(a)) and (2(b)) may transfer data at high speed using wide serial data path.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: February 28, 1995
    Assignees: The Provost, Fellows and Scholars of Trinity College Dublin, Brian A. Coghlan, Jeremy O. Jones
    Inventors: Brian A. Coghlan, Jeremy O. Jones