Andrews, 1963 - Google Patents

Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
  • H04M1/26—Devices for signalling identity of wanted subscriber
  • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
  • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING; COUNTING
  • G06F—ELECTRICAL DIGITAL DATA PROCESSING
  • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
  • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
  • G06F7/46—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using electromechanical counter-type accumulators
  • G06F7/462—Multiplying; dividing
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING; COUNTING
  • G06F—ELECTRICAL DIGITAL DATA PROCESSING
  • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
  • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
  • G06F7/64—Digital differential analysers, i.e. computing devices for differentiation, integration or solving differential or integral equations, using pulses representing increments; Other incremental computing devices for solving difference equations
  • G06F7/66—Digital differential analysers, i.e. computing devices for differentiation, integration or solving differential or integral equations, using pulses representing increments; Other incremental computing devices for solving difference equations wherein pulses represent unitary increments only
• • H—ELECTRICITY
  • H03—BASIC ELECTRONIC CIRCUITRY
  • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
  • H03M2201/00—Indexing scheme relating to A/D or D/A conversion
  • H03M2201/80—Components, circuits or devices used with or within A/D or D/A converters but not disclosed in detail and not provided for elsewhere [H]
  • H03M2201/81—Electrical components
  • H03M2201/8104—Discharge tubes
  • H03M2201/8108—Vacuum tubes

Similar Documents