← Back to Patent Explorer
EP0309348A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Binary addition and multiplication device

Assignee: Orange SA
•
Filing: 1988-09-21
•
Granted: —
•
Expires: 2008-09-21
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from French La présente invention a pour objet un dispositif d'addition binaire, du type comprenant au moins une cellule possédant : une entrée de premiers chiffres binaires ou bits (Ai), une entrée de second bits (Bi), une entrée de report amont (Ri-1), des premiers moyens (100A) pour engendrer un signal de OU exclusif des deux bits d'entrée (Ai⊕Ri-1), et son complément (Ai⊕Ri-1), des seconds moyens (200A) pour produire un signal de résultat, des troisièmes moyens (300A) pour produire un signal de report aval (Ri) en logique multiplexée. L'invention concerne également un dispositif de calcul binaire pour additionner un premier bit de valeur binaire quelconque à un second bit de valeur binaire fixe et connue. Application à un multiplieur comprenant un tel additiionneur à opérande fixe. The present invention relates to a binary addition device, of the type comprising at least one cell having: an input of first binary digits or bits (Ai), an input of second bits (Bi), an input of carry-forward (Ri -1), first means (100A) for generating an exclusive OR signal from the two input bits (Ai⊕Ri-1), and its complement (Ai⊕Ri-1), second means (200A) for producing a result signal, third means (300A) for producing a downstream carry signal (Ri) in multiplexed logic. The invention also relates to a binary calculation device for adding a first bit of any binary value to a second bit of fixed and known binary value. Application to a multiplier comprising such a fixed operand adductor.

Inventors

  • 👤 Hedi Hmida
  • 👤 Pierre Duhamel

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 06:36
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/50; G06F7/505; G06F7/5055; G06F7/501; G06F7/52; G06F7/523; G06F2207/00; G06F2207/38; G06F2207/48; G06F2207/4802; G06F2207/4812

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US3767906A Cited
EP0096333A2 Cited

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag