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:
Apr. 11, 1978
Filed:
Mar. 15, 1976
Thomas H Otten, Indian Harbour Beach, FL (US);
Harris Corporation, Cleveland, OH (US);
Abstract
A binary bit pattern is reconstructed from a block of analog signals corresponding to the number of known bit positions of the pattern being reconstructed. The analog signals, which may take the form of light intensity signals, vary in signal level with the binary level represented as well as with a characteristic which causes the signal levels of the analog signals to vary in a known manner as a function of bit position. In reconstructing the bit pattern, an output signal is developed having a value dependent upon that of at least one of the analog signals which has a known bit level reconstruction. This signal is used for providing a variable threshold having a value which varies in dependence upon the outut signal as modified by a modifying factor which varies in the known manner as a function of bit position. Bit decision circuitry includes a comparator for sequentially comparing the analog signals with the variable threshold to provide bit decision indications.