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. 11, 1983
Filed:
Sep. 18, 1980
Victor Company of Japan, Limited, Yokohama, JP;
Abstract
A digital editing system includes first and second memories in which audio data and weighting factor data are respectively stored. The audio data are sequentially retrieved from the first memory and multiplied by corresponding weighting factor data retrieved from the second memory. A coincidence detector detects when predetermined storage locations of the memories are addressed. The weighting factor data has a unity or zero value during the time prior to the occurrence of an output from the detector, whereupon it changes its value as a function of time until it reaches to zero or unity and remains at the final value thereafter. The direction of variation of the weighting factor data can be appropriately selected to modify the audio data into a so-called 'fade out' of 'fade-in' pattern at a desired point of the audio program. A pair of such editing systems is required for editing audio programs from different sources for storing such programs in a pair of first memories. Weighting factor data respectively stored in the second memories vary in opposite directions so that the audio data from the first memories are modified into 'fade-out' and 'fade-in' patterns which are combined in an adder to create a single, continuous audio program.