RO84001B1 - Tastatura senzoriala pentru aparate telefonice - Google Patents

Tastatura senzoriala pentru aparate telefonice

Info

Publication number
RO84001B1
RO84001B1 RO99754A RO9975479A RO84001B1 RO 84001 B1 RO84001 B1 RO 84001B1 RO 99754 A RO99754 A RO 99754A RO 9975479 A RO9975479 A RO 9975479A RO 84001 B1 RO84001 B1 RO 84001B1
Authority
RO
Romania
Prior art keywords
keyboard
sensorial
telephone apparatuses
channels
channel
Prior art date
Application number
RO99754A
Other languages
English (en)
Other versions
RO84001A2 (ro
Inventor
Victor Croitoru
Dumitru Cracea
Gabriel Cristescu
Viorel Casaru
Original Assignee
Victor Croitoru
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Victor Croitoru filed Critical Victor Croitoru
Priority to RO99754A priority Critical patent/RO84001B1/ro
Publication of RO84001A2 publication Critical patent/RO84001A2/ro
Publication of RO84001B1 publication Critical patent/RO84001B1/ro

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  • Input From Keyboards Or The Like (AREA)

Abstract

Inventia se refera la o tastatura senzoriala pentru aparate telefonice alcatuita din trei tastere senzoriale realizate cu circuite integrate si reprezentînd, fiecare, cîte patru canale, astfel încît zece canale sa fie utilizate pentru tastarea celor zece cifre (de la 0 la 9), iar un canal utilizat ca element necesar stergerii celorlalte, prin acest al 11-lea canal si cu un comutator electronic neinversor aferent, constituit din doua tranzistoare complementare.
RO99754A 1979-12-29 1979-12-29 Tastatura senzoriala pentru aparate telefonice RO84001B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO99754A RO84001B1 (ro) 1979-12-29 1979-12-29 Tastatura senzoriala pentru aparate telefonice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO99754A RO84001B1 (ro) 1979-12-29 1979-12-29 Tastatura senzoriala pentru aparate telefonice

Publications (2)

Publication Number Publication Date
RO84001A2 RO84001A2 (ro) 1984-05-12
RO84001B1 true RO84001B1 (ro) 1984-06-30

Family

ID=20107833

Family Applications (1)

Application Number Title Priority Date Filing Date
RO99754A RO84001B1 (ro) 1979-12-29 1979-12-29 Tastatura senzoriala pentru aparate telefonice

Country Status (1)

Country Link
RO (1) RO84001B1 (ro)

Also Published As

Publication number Publication date
RO84001A2 (ro) 1984-05-12

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