Decoding equipment especially for a typewriter intended for handicapped persons
AssigneeRotary Club Geneve SUD
InventorJean Richez
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Abstract
Code control equipment especially for a typewriter intended for handicapped persons comprising a receiver of control signals having short and long impulses, a decoder, and circuits able to control various functions, characterised in that it comprises electronic integrating equipment, memory store equipment and comparison equipment which interprets for each coded control signal the significance of each element of the coded signal so that the control of functions is rendered practically independent of the rate at which the elements of the coded signal are given and of their absolute duration.
Claims12
A decoding control device for controlling an electrical circuit in response to a coded control signal, comprising
- a receiver able to receive a control signal having successive short or long elements and comprising at least one short and one long element,
- identifying means for identifying each element of a control signal so received as short or long by comparison of a signal derived from the element with a reference signal having a value dependent on a signal derived from at least one other element of the control signal, means for producing the reference signal, and means for producing for each element an identifying signal having a value corresponding to the identification of the element as short or long,
- and a decoder responsive to a permutation of the identifying signals thereby to control an electrical circuit.
Code control equipment especially for a typewriter intended for handicapped persons comprising a receiver of control signals having short and long impulses, a decoder, and circuits able to control various functions, characterised in that it comprises electronic integrating equipment, memory store equipment and comparison equipment which interprets for each coded control signal the significance of each element of the coded signal so that the control of functions is substantially independent of the rate at which the elements of the coded signal are given, and of their absolute duration.
Dependencies are inferred from the claim text.