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. 01, 1977
Filed:
Apr. 12, 1976
Francis T Thompson, Murrysville, PA (US);
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Abstract
An automatic self-administered interrogating apparatus that projects a series of film-frame-recorded images onto a rear projection screen. At least many of such images simultaneously present to the viewer both a question and a list of multiple choice answers, any or all of which answers may be selected by actuation of respective response buttons before a new question-answer image is brought into view on the screen. Each question has a serial number that is recorded together with the several answers, and each answer is coded on the basis of branching logic to control the number of film frames to be advanced for presentation of the next question-answer image. A selection device is included for determining which of the several film advancement codes is honored when the choice of answers necessitates such selection.