公开(公告)号：US3629956A

公开(公告)日：1971-12-28

申请号：US3629956D

申请日：1970-08-04

Applicant: RCA CORP

Inventor： THOMAS LUCIUS PONDER ,  MCDONALD JAMES ALEXANDER ,  JANSON EUGENE ERNST ,  CHRISTOPHER TODD J ,  PEER JOHN CHARLES

IPC: G09B7/08

CPC classification number: G09B7/08

Abstract: Frames on a film may contain multiple choice questions which can be answered by selecting one of a number of answer buttons but each frame includes only a single next address code. The latter has only a small number of bits but is ambiguous in the sense that the present address on a number of frames is equal to this next address. The ambiguity is resolved by counting the frames having this common present address until the one called for by the selected answer button is reached. A second feature of the machine useful in playing games is the production of a random number in response to a user actuated button for comparison with the count of frames having a particular common present address.

公开(公告)号：US3441669A

公开(公告)日：1969-04-29

申请号：US3441669D

申请日：1965-02-26

Applicant: RCA CORP

Inventor： JANSON EUGENE ERNST ,  THOMAS LUCIUS PONDER

IPC: G06T11/00 ,  H03G3/20 ,  H04N5/08 ,  H04N5/213 ,  H04N5/53 ,  H04N5/14 ,  H04N5/44

CPC classification number: H04N5/08 ,  H04N5/213