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:
Mar. 23, 1982
Filed:
Aug. 23, 1979
Hiroshi Kosugi, Yokohama, JP;
Kunio Imai, Kodaira, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A digital-to-analog converter which is effective for an interpolative decoder for decoding a linear PCM signal is disclosed. An output signal of a binary rate multiplier which develops signals of several less-significant bits of the linear PCM signal onto a time axis is directly applied to a driver circuit, by which is driven the segment of a ladder resistance network corresponding to the least significant bit, the ladder resistance network having segments corresponding to signals of several more-significant bits of the linear PCM signal. Thus, an adder for the digital addition between the output signal of the binary rate multiplier and the signals of the several more-significant bits is dispensed with.