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:
Oct. 13, 1987
Filed:
Oct. 25, 1985
Applicant:
Inventor:
Robert F Casey, Oradell, NJ (US);
Assignee:
RCA Corporation, Princeton, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ; H04L / ;
U.S. Cl.
CPC ...
375 76 ; 307359 ;
Abstract
As the 8-bit input signal applied to a threshold device reaches a first threshold level, the 1-bit output signal changes from a logical zero to a logical one. The 1-bit output signal is delayed by one system clock period and fed back. The delayed 1-bit output signal is combined (e.g., merged or added) with the 8-bit input signal, and the resulting signal is applied to the threshold device to provide a hysteresis feature. Once the delayed 1-bit output signal becomes a logical one, the input signal has to drop below a second, lower threshold level before the 1-bit output signal can revert back to a logical zero, whereby a margin of noise immunity is provided.