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Machine translation
1. (WO1980001523) CONTROL KEYBOARD WITH MECHANICAL KEYS AND SWITCHES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001523    International Application No.:    PCT/FR1980/000005
Publication Date: 24.07.1980 International Filing Date: 16.01.1980
IPC:
H01H 13/70 (2006.01), H01H 9/02 (2006.01)
Applicants:
Inventors:
Priority Data:
7901101 17.01.1979 FR
Title (EN) CONTROL KEYBOARD WITH MECHANICAL KEYS AND SWITCHES
(FR) CLAVIER DE COMMANDE A TOUCHES ET INTERRUPTEURS MECANIQUES ET MACHINES COMPRENANT CE CLAVIER
Abstract: front page image
(EN)Improved keyboard of which the keys are coupled to normally closed contact switches. The switches (Ii, j) are mounted in series with respective dials (Di, j) and each such series connection is interconnected between a line and a column of a network of leads (12) in a matrice configuration. The device overcomes the problemes of bad quality contact by means of mechanical structure switches.
(FR)Clavier perfectionne dont les touches sont couplees a des interrupteurs a contact normalement ferme. Selon l"invention, les interrupteurs Ii, j sont montes en serie avec des diodes respectives Di, j et chaque connexion en serie ainsi realisee est interconnectee entre une ligne et une colonne d"un reseau de conducteurs (12) en configuration matricielle. L"invention permet de resoudre les problemes poses par la mauvaise qualite des contacts etablis au moyen des interrupteurs a structure mecanique.
Designated States:
Publication Language: French (FR)
Filing Language: French (FR)