1
Joseph A Doumit, Robert E Weiblen: Information displaying system. Dial A Channel, Clarence A O Brien, Harvey B Jacobson, May 13, 1980: US04203130 (219 worldwide citation)

Program schedules together with other periodically updated information is displayed to subscribers through a cable television system. The information is derived from optical image recordings and electronically generated from digital circuitry for display in synchronized relation to audio and color s ...


2
Joseph A Doumit: Program schedule displaying system. Dial A Channel, Clarence A O Brien, Harvey B Jacobson, April 22, 1980: US04199781 (106 worldwide citation)

Program schedule information recorded on film is converted into video signals by two video record players for transmission with audio signals through a selected channel to cable television subscribers. The film is incrementally advanced in reverse directions for alternate display of different inform ...


3
Joseph A Doumit: Program schedule displaying system. Dial A Channel, Clarence A O Brien, Harvey B Jacobson, May 11, 1976: US03956579 (15 worldwide citation)

Television programs schedules and visual time information are displayed by projection of composite images from the frames of a film strip and slides respectively displaced in synchronism on a cyclic basis and unidirectionally advanced at the end of each regular program period under control of a time ...