Digital differential analyzer with an increment output function

Details Digital differential analyzer with an increment output function Digital differential analyzer with an increment output function

1979-10-19

1981-10-06

Malzahn, David H.

Boots, shoes, and leggings

G06F 764

Patent

active

042939186

ABSTRACT:
A digital differential analyzer has a Y register, an adder, an arithmetic logic unit, an R register, a logic circuit for producing increments, and incremental registers. These circuit components are controlled by a control unit storing previous programs. Another arithmetic/logic unit is provided which receives the data in the R register and increments.
The Y register converts the whole value data coming from the exterior of the digital differential analyzer into incremental data. When there is a difference between the data in the R register and the data in the Y register, an increment .DELTA.z is produced and the increment .DELTA.z is added to the content of the R register. The increment .DELTA.z is successively outputted until the contents of the R register is equal to that of the Y register.

REFERENCES:
patent: 3555514 (1971-01-01), Hosaka et al.
patent: 3586837 (1971-06-01), Hyatt et al.
patent: 3598974 (1971-08-01), Lincoln
patent: 3601591 (1971-08-01), Gaines et al.
patent: 4106100 (1978-08-01), Okada et al.

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