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:
Jul. 09, 1991
Filed:
May. 04, 1989
Allan H Dansky, Poughkeepsie, NY (US);
Chris J Rebeor, Beacon, NY (US);
Dennis C Reedy, Stormville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A receiver and level converter circuit is disclosed which may be used, for example, in converting low-level logic or other signals to high-level signals. In one embodiment, the circuit includes a differential amplifier having two feedback loops to provide an output signal having hysteresis, for increased gain, better noise margin and compensation. Each feedback loop includes a nonlinear difference network. In a preferred embodiment, the circuit is implemented in BICMOS technology, uses out-of-phase FETs as pull-down devices, and may be used to convert ECL-level signals to CMOS or BICMOS-level signals.