Patents Assigned to Ricoh Silicon Valley Corporation
  • Patent number: 7493472
    Abstract: A set of S-machines, a T-machine corresponding to each S-machine, a General Purpose Interconnect Matrix (GPIM), a set of I/O T-machines, a set of I/O devices, and a master time-base unit form a system for scalable, parallel, dynamically reconfigurable computing. Each S-machine is a dynamically reconfigurable computer having a memory, a first local time-base unit, and a Dynamically Reconfigurable Processing Unit (DRPU). The DRPU is implemented using a reprogrammable logic device configured as an suction Fetch Unit (IFU), a Data Operate Unit (DOU), and an Address Operate Unit (AOU), each of which are selectively reconfigured during program execution in response to a reconfiguration interrupt or the selection of a reconfiguration directive embedded within a set of program instructions. Each reconfiguration interrupt and each reconfiguration directive references a configuration data set specifying a DRPU hardware organization optimized for the implementation of a particular Instruction Set Architecture (ISA).
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: February 17, 2009
    Assignees: Ricoh Company Ltd., Ricoh Silicon Valley Corporation
    Inventor: Michael A. Baxter
  • Patent number: 6961842
    Abstract: A set of S-machines, a T-machine corresponding to each S-machine, a General Purpose Interconnect Matrix (GPIM), a set of I/O T-machines, a set of I/O devices, and a master time-base unit form a system for scalable, parallel, dynamically reconfigurable computing. Each S-machine is a dynamically reconfigurable computer having a memory, a first local time-base unit, and a Dynamically Reconfigurable Processing Unit (DRPU). The DRPU is implemented using a reprogrammable logic device configured as an Instruction Fetch Unit (IFU), a Data Operate Unit (DOU), and an Address Operate Unit (AOU), each of which are selectively reconfigured during program execution in response to a reconfiguration interrupt or the selection of a reconfiguration directive embedded within a set of program instructions. Each reconfiguration interrupt and each reconfiguration directive references a configuration data set specifying a DRPU hardware organization optimized for the implementation of a particular Instruction Set Architecture (ISA).
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: November 1, 2005
    Assignees: Ricoh Company Ltd., Ricoh Silicon Valley Corporation
    Inventor: Michael A. Baxter