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:
Nov. 07, 1995
Filed:
Feb. 07, 1994
Applicant:
Inventor:
John C Schultheiss, Grass Valley, CA (US);
Assignee:
The Grass Valley Group, Inc., Nevada City, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348716 ; 348714 ; 360 141 ;
Abstract
A spiral buffer for a non-linear editing system digitizes and stores an input video signal as it is simultaneously being cataloged by an operator. The digitized video signal is stored in a circular buffer of a random access non-linear storage device, such as a disk recorder, with the oldest video being overwritten by the newest video when the buffer is full so long as the oldest video has not been marked by the cataloging process to be kept. The marked video is edited, further pruning the video in the buffer. The pruning of the video in the circular buffer results in a spiral shrinking of the buffer.