Analogue computer

• US 3,084,863 A
• Filed: 02/19/1962
• Issued: 04/09/1963
• Est. Priority Date: 02/19/1962
• Status: Expired due to Term

• Current Assignee: Wilbur E Du Vall
• Original Assignee: Wilbur E Du Vall
• Inventors: DU VALL WILBUR E
• Application Number:
  US04/173,980
• Time in Patent Office: 414 Days
• US Class Current: 708/838
• CPC Class Codes: G01R 21/127 by using pulse modulation G01R21/133 takes precedence
• CPC Class Codes: G06G 7/161 with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form pulse modulators H03K7/00

Claims

1. AN ANALOGUE COMPUTER HAVING A FIRST INPUT TERMINAL, MEANS FOR APPLYING A VOLTAGE TO SAID FIRST INPUT TERMINAL, A SECOND INPUT TERMINAL, MEANS FOR APPLYING A CURRENT TO SAID SECOND INPUT TERMINAL, MEANS FOR CONVERTING SAID CURRENT INTO A SQUARE WAVE, MEANS FOR DERIVING LEADINGEDGE SIGNALS AND LAGGING-EDGE SIGNALS FROM SAID SQUARE WAVE, A GATE CIRCUIT HAVING TWO INPUTS AND A SINGLE OUTPUT, MEANS FOR APPLYING SAID VOLTAGE TO ONE OF SAID GATE INPUTS, MEANS FOR SELECTING ONE OF SAID LEADING- AND LAGGINGEDGE SIGNALS AND APPLYING THE SELECTED SIGNALS TO THE OTHER INPUT OF SAID GATE, CAPACITOR MEANS HAVING A CHARGING AND DISCHARGING CIRCUIT, MEANS FOR APPLYING THE OUTPUT OF SAID GATE TO SAID CAPACITOR MEANS FOR CHARGING SAID CAPACITOR MEANS, A SECOND GATE HAVING TWO INPUTS, MEANS FOR RECTIFYING SAID CURRENT APPLIED TO SAID SECOND INPUT TERMINAL AND FOR APPLYING IT TO ONE OF THE SAID SECOND GATE INPUTS, MEANS FOR APPLYING THE OUTPUT OF SAID CAPACI-