Optics: image projectors – Selective data retrieval
Patent
1981-12-31
1984-06-05
Haroian, Harry N.
Optics: image projectors
Selective data retrieval
360 80, G03B 2306, G03B 2302
Patent
active
044525184
ABSTRACT:
Control apparatus including a keyboard is provided for a slide projector to control operation of the slide projector in various predetermined modes to perform predetermined functions. Various functions are executed by the slide projector in response to the keyboard inputs. The keyboard includes an array of digit keys for the numerals 0 through 9 and various other function keys. Actuation of each of the function keys directly corresponds to either a function to be accomplished by the control apparatus or to a command mode input. Actuation of the digit keys provides designation of particular slide address numbers and also provides predetermined mode command inputs. The slide projector and control apparatus include an associated cassette tape recorder/player. A prerecorded program tape includes encoded slide address signals and encoded mode command signals which are decoded to control the slide projector to project the slides represented by the encoded slide address signals in a random access program in accordance with the associated decoded mode command signals. A remote control unit is also provided that includes a keyboard. In specific embodiments the control apparatus provides for the manual, local, or remote control of functions and features for slide programs including random access slide selection, selective pause times, indefinite pauses with restart control, remote control enable and disable, display blanking and unblanking control, selective slide presentation advance times, record enable, and integrated control of the local and remote keyboard.
REFERENCES:
patent: 3243780 (1966-03-01), Bendick et al.
patent: 3718985 (1973-03-01), Hewitt
patent: 3732570 (1973-05-01), Fiorentino
patent: 4041457 (1977-08-01), Koch
patent: 4075668 (1978-02-01), Keach
patent: 4080637 (1978-03-01), Chase et al.
patent: 4363055 (1982-12-01), Lee
"Diaprojektor-Fernsteuerung mit dem Infrarot-System IR 60", by Helmut Liedl., Elektronik Industrie, vol. II, No. 5, (May 1980), pp. 28-29.
Di Gianfilippo Dominic J.
Parker Robert R.
Bell & Howell Company
Fitz-Gerald Roger M.
Haroian Harry N.
Lapacek James V.
Schneider Robert J.
LandOfFree
Slide projector control apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Slide projector control apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Slide projector control apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1494831