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:
Dec. 28, 1982
Filed:
Sep. 22, 1980
Stuart R Michaels, Commack, NY (US);
Stephen J Sacks, Woodmere, NY (US);
ILC Data Device Corporation, Bohemia, NY (US);
Abstract
A companding analog to digital converter for converting an analog signal into a variable length multi-bit binary word, the number of said bits being a function of the magnitude of the analog signal being converted relative to the high end of the range of magnitudes capable of being converted. The analog signal is temporarily stored and is attenuated by a predetermined amount. The attenuated signal is converted into a multi-bit digital word. A group of the most significant bits of said digital word are examined to alter the attenuation of the stored analog signal dependent upon its magnitude relative to the full scale. The attenuated analog signal is again converted into a multi-bit digital word which is temporarily stored. The group of binary bits initially stored together with results of the second conversion operation are combined to develop a multi-bit digital word whose bit length is a function of the magnitude of the stored analog signal relative to scale. Multiplexer means are utilized to transfer stored bits to an output line in order to provide an output word of uniform digital length regardless of the magnitude of the converted analog signal.