Electric device for numerical measurement of a magnitude by a pulse counter
AssigneeCharbonnages de France
InventorClaude Gagniere
Life of this patent
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Abstract
An electronic counting device for displaying the measurement of a quantity includes a pulse counter which receives a supplementary pulse every time the pulse counter stands at any one of a predetermined series of numerals. The natural counting base of the counter is thus effectively modified so that the displayed output is determined according to a different counting base.
Claims5
An electrical device for numerical measurement of a quantity by a pulse counter with a fixed whole number counting base, each pulse representing a rational fraction of the unit of measurement of the quantity comprising
- a pulse counter including binary counting circuits,
- means for supplying to said pulse counter a supplementary pulse every time said pulse counter stands at one of the numerals of a preselected series of numerals,
- said pulse supplying means including
- a pulse generator connected to the input circuit of said pulse counter,
- a display comparator circuit controlling said pulse supplying means and connected to the output circuit of the pulse counter and including
- binary-decimal coders each of which is associated with one of said binary counting circuits,
- a decimal display system connected to outputs from said pulse counter,
- an AND circuit whose output is connected to said pulse generator,
- an OR circuit,
- means for connecting outputs of said coder associated with the first of said counting circuits to said OR circuit,
- said connecting means including
- at least one AND circuit whose output is permanently connected to said OR circuit,
- and means for connecting certain outputs of said coders to one of the inputs of each said AND circuit of said connecting means.
An electrical device for numerical measurement of a quantity by a pulse counter with a fixed whole number counting base, each pulse representing a rational fraction of the unit of measurement of the quantity comprising
- a pulse counter including binary counting circuits,
- means for supplying to said pulse counter a supplementary pulse every time said pulse counter stands at one of the numerals of a preselected series of numerals,
- said pulse supplying means including
- a pulse generator connected to the input circuit of said pulse counter,
- a display comparator circuit controlling said pulse supplying means and connected to the output circuit of the pulse counter and including
- display binary comparators each of which is associated with one of said counting circuits,
- And circuits each of which is associated with one of said comparators associated with the counting circuits of the rank 2, 3, . . . ,
- and means for connecting each of said AND circuits simultaneously to the output of said comparator with which it is associated and to the outputs of all the counting circuits of lower rank, and for connecting to said pulse generator the outputs of said comparator associated with the first counting circuit and the outputs of several of said AND circuits so that said pulse generator will supply a pulse ever time the set of said counting circuits has recorded one of the numerals of a series selected by the user.
An electrical device for numerical measurement of a quantity by a pulse counter with a fixed whole number counting base, each pulse representing a rational fraction of the unit of measurement of the quantity comprising
- a pulse counter including at least two inputs operable as forward and backward pulse counting device,
- means for supplying to said pulse counter a supplementary pulse every time said pulse counter stands at one of the numerals of a preselected series of numerals,
- said pulse supplying means including
- a pulse generator,
- branching circuit means to direct supplementary pulses from said pulse generator to one of said inputs of said counter which is operable to receive the supplementary pulse,
- and a display comparator circuit controlling said pulse supplying means and connected to the output circuit of the pulse counter.
Dependencies are inferred from the claim text.