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. 05, 1978
Filed:
Aug. 26, 1977
Venkappa Laxmappa Gani, Wappingers Falls, NY (US);
Frank Alfred Montegari, Wappingers Falls, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A logical current switch responsive to a plurality of input logical signals having predetermined voltage swings and including in a first circuit arrangement parallel-connected bipolar transistors responsive to the logical signal levels of the input signals, and including in a second circuit arrangement a single bipolar transistor responsive to a logical function of the input signals via Schottky barrier diodes. Each of the above arrangements being connected with a further ground-biased transistor and including a Schottky barrier diode for coupling the emitter of the input signal responsive bipolar transistor to the emitter of the ground-biased bipolar transistor so as to result in circuits for producing complementary output signal level swings of a magnitude equal to the input logical signal voltage level swings.