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United States Patent | 3,586,837 |
Hyatt , et al. | June 22, 1971 |
An arrangement is provided in which the inputs and outputs of digital differential analyzer integrators are interconnected under program control by encoding and decoding the incremental dz integrator output signals in space and time domains. The integrators operate in parallel word fashion, the sum of the dependent incremental input variables dy being added to a parallel arrangement of full adders in the Y register to update the value of Y, and the updated value of Y being transferred via the full adders to a parallel arrangement of full adders in the R register under the control of independent variables dx during iteration. The independent dx variables are stored and employed to transfer weighted portions of the dependent incremental input variable sums into the R register during subsequent iterations to provide higher order correction of the Y values.
Inventors: | Hyatt; Gilbert P. (Northridge, CA), Ohlberg; Eugene (Northridge, CA) |
Assignee: |
Teledyne Industries, Inc.
( |
Appl. No.: | 04/725,468 |
Filed: | April 30, 1968 |
Current U.S. Class: | 708/102 |
Current International Class: | G06F 7/60 (20060101); G06F 7/64 (20060101); G06j 001/02 () |
Field of Search: | 235/150.31,150.3,150.4,150.5,150.51,150.52,150.53,164,152,160 |
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