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. 13, 1982
Filed:
Mar. 24, 1980
Charles E Wright, Escondido, CA (US);
Eastman Technology, Inc., Rochester, NY (US);
Abstract
A video camera is provided with means for producing lap and/or dissolve effects between successively recorded scenes. Means are provided for controlling the level of AC bias accompanying the video signals applied to a magnetic recording head. A dissolve effect is achieved by gradually decreasing the level of such bias at the end of a recorded scene. A lap effect is achieved by gradually increasing the bias level at the beginning of a new scene. A simultaneous lap and dissolve effect is achieved by performing the individual lap and dissolve effects on the same segment of tape. To do this, the tape drive is reversed at the end of each scene to position the dissolved portion of the scene upstream of the magnetic recording head. Upon recording a new scene while gradually increasing the level of AC bias at the beginning thereof, a simultaneous lap and dissolve effect is achieved automatically.