Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4686621 | Test apparatus for testing a multilevel cache system with graceful degradation capability | James W. Keeley, Robert V. Ledoux | 1987-08-11 |
| 4667288 | Enable/disable control checking apparatus | James W. Keeley, Robert V. Ledoux | 1987-05-19 |
| 4562536 | Directory test error mode control apparatus | James W. Keeley, Robert V. Ledoux | 1985-12-31 |
| 4484300 | Data processor having units carry and tens carry apparatus supporting a decimal multiply operation | Steven A. Tague | 1984-11-20 |
| 4462072 | Clock system having a stall capability to enable processing of errors | Steven A. Tague | 1984-07-24 |
| 4447870 | Apparatus for setting the basic clock timing in a data processing system | Steven A. Tague | 1984-05-08 |
| 4426680 | Data processor using read only memories for optimizing main memory access and identifying the starting position of an operand | Steven A. Tague | 1984-01-17 |
| 4423483 | Data processor using a read only memory for selecting a part of a register into which data is written | Steven A. Tague | 1983-12-27 |
| 4410984 | Diagnostic testing of the data path in a microprogrammed data processor | Steven A. Tague | 1983-10-18 |
| 4390961 | Data processor performing a decimal multiply operation using a read only memory | Steven A. Tague | 1983-06-28 |
| 4384343 | Firmware controlled search and verify apparatus and method for a data processing system | Victor M. Morganti, Michael J. D. Graesser | 1983-05-17 |
| 4384341 | Data processor having carry apparatus supporting a decimal divide operation | Steven A. Tague | 1983-05-17 |
| 4384340 | Data processor having apparatus for controlling the selection of decimal digits of an operand when executing decimal arithmetic instructions | Steven A. Tague | 1983-05-17 |
| 4323967 | Local bus interface for controlling information transfers between units in a central subsystem | Arthur Peters, David E. Cushing, Richard P. Brown, Thomas F. Joyce | 1982-04-06 |
| 4322846 | Self-evaluation system for determining the operational integrity of a data processing system | Elmer W. Carroll, Arthur Peters | 1982-03-30 |
| 4309753 | Apparatus and method for next address generation in a data processing system | Arthur Peters | 1982-01-05 |
| 4272828 | Arithmetic logic apparatus for a data processing system | Arthur Peters | 1981-06-09 |
| 4271484 | Condition code accumulator apparatus for a data processing system | Arthur Peters | 1981-06-02 |
| 4258420 | Control file apparatus for a data processing system | Arthur Peters | 1981-03-24 |
| 4245328 | Binary coded decimal correction apparatus for use in an arithmetic unit of a data processing unit | Arthur Peters | 1981-01-13 |
| 4224668 | Control store address generation logic for a data processing system | Arthur Peters | 1980-09-23 |
| 4218739 | Data processing interrupt apparatus having selective suppression control | Ming T. Miu | 1980-08-19 |