Patent
1976-10-18
1978-03-14
Grieb, William H.
35 9A, 35 35C, G09B 702
Patent
active
040783154
ABSTRACT:
Apparatus and a method are disclosed for offering branch programming for instructional purposes. The apparatus comprises a tape player of the cassette variety, preferably having a tape index or counter. A prerecorded tape cassette carrying the program of instruction is also included. The tape has a plurality of segments of primary material recorded over corresponding spans of tape in a forward direction on a first track. A plurality of segments of supplemental material related to the primary material are recorded in a reversed direction on a second track. The primary material segments each terminate in segment-defining indicia aligned with the initiation of the corresponding secondary material segment. In use, the listener plays a primary material information segment, and then stops the tape player. If further development of the subject is desired, the listener removes the cassette, and flips it over or reverses its orientation. He then reinstalls it in and upon the tape player. When the tape player is again started, the supplemental information is provided. After listening to this information, the listener rewinds the tape to the supplemental information segment initiation point by reference to the tape index or counter in one form of the invention. The listener then again reverses the orientation of the cassette, and listens to a subsequent primary material information segment.
REFERENCES:
patent: 2558853 (1951-07-01), Kappeler
patent: 3194895 (1965-07-01), Treadwell
patent: 3408749 (1968-11-01), Brudner
patent: 3484950 (1969-12-01), Serrell et al.
patent: 3662120 (1972-05-01), Hess
patent: 3673346 (1972-06-01), Gordon et al.
patent: 3735503 (1973-05-01), Dow et al.
patent: 3810316 (1974-05-01), Lahlou
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