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:
Jan. 04, 1977
Filed:
Jan. 02, 1975
Applicant:
Inventor:
David A Folsom, Sudbury, MA (US);
Assignee:
QSI Systems, Inc., West Newton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
360-5 ; 360 35 ;
Abstract
A video surveillance system which records the outputs of a plurality of video cameras in sequence normally operates in a time lapse mode so that video signals are recorded at spaced intervals of time to conserve video recording tape. When an emergency situation occurs in the installation being surveilled, an alarm button is depressed which automatically switches the system into a real time mode in which the video signals are recorded continuously so that there is no loss of useful information during the emergency.