The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 1982
Filed:
Sep. 12, 1980
Gerard M Lebesnerais, Perthes, FR;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The basic circuit (FIG. 2) includes an input device (A) driving two output transistors (B) and (C) which have different rise times [injection currents (I2, I3) or the input characteristics of the transistors (capacitors C2, C3) may be adjusted]. In a preferred embodiment (FIG. 3) differentiation is ensured by coupling a control transistor D to one of the output transistors (B) through a PNP transistor. If transistors (B) and (C) are cross-coupled, the circuit which is achieved is a bistable device. FIG. 4 shows the layout of the circuit of FIG. 3. Various applications in the synchronous logic circuit domain are described: T flip-flop (FIG. 8) and shift register (FIG. 9).