US3585612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repetitive playback means comprising an intermittently driven tape
Assignee: Edouard Dubied et Cie SA
•
Filing: 1969-05-19
•
Granted: 1971-06-15
•
Expires: 1989-05-19
Abstract
Abstract Repetitive playback means for controlling the operation of a machine, comprising a tape adapted to be driven intermittently to and fro past reading means and having items of information recorded thereon along parallel longitudinally extending tracks, sad items forming two categories, one being read as the tape travels in one direction and the other being read as the tape travels in the other direction, the tape also having recorded thereon near its ends instructions for causing the tape drive to be reversed as the tape reached either end.
Inventors
- 👤 Andre Corbaz
- 👤 Jean-Pierre Engel
- 👤 Erwin Zurcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:35
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/12; G05B19/124; G05B2219/00; G05B2219/20; G05B2219/23; G05B2219/23351; G05B2219/23418
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
270 words
A device for repetitively playing back a plurality of series of information bits recorded along a plurality of longitudinal tracks on a tape, as for the programmed control of a plurality of components of a machine with continuous, cyclic operation, said device comprising: means for reading said information bits; means for winding and storing said tape; and reversible tape-driving means, wherein said reversible tape-driving means include means for engaging the tape, adjacent to said reading means, and actuating means therefore, adapted for reversible step-by-step movement of said tape past said reading means to enable reading one information bit recorded on each track at each step; said reading means include a main reading element for each of said tracks and a pair of reading elements respectively adapted to read one of two reversing information bits located at opposite ends of said tracks and to deliver corresponding directionreversing signals to said tape-driving means to enable alternate step-by-step motion of said tape past said reading means, in both directions, from one end of said tracks to the other; and said device further comprising means for controlling the playback of the information bits read out by said main reading element of each track, said means for controlling being arranged to enable selective playback of a first half of each said series of information bits when said tape moves in one direction past said reading means, and of the second half of each said series when said tape moves in the opposite direction, the arrangement enabling repetitive playback of the information items of said series by back-and-forth movement of said tape past said reading means.
Claim 2
Independent Claim
270 words
A device for repetitively playing back a plurality of series of information bits recorded along a plurality of longitudinal tracks on a tape, as for the programmed control of a plurality of components of a machine with continuous, cyclic operation, said device comprising: means for reading said information bits; means for winding and storing said tape; and reversible tape-driving means, wherein said reversible tape-driving means include means for engaging the tape, adjacent to said reading means, and actuating means therefore, adapted for reversible step-by-step movement of said tape past said reading means to enable reading one information bit recorded on each track at each step; said reading means include a main reading element for each of said tracks and a pair of reading elements respectively adapted to read one of two reversing information bits located at opposite ends of said tracks and to deliver corresponding directionreversing signals to said tape-driving means to enable alternate step-by-step motion of said tape past said reading means, in both directions, from one end of said tracks to the other; and said device further comprising means for controlling the playback of the information bits read out by said main reading element of each track, said means for controlling being arranged to enable selective playback of a first half of each said series of information bits when said tape moves in one direction past said reading means, and of the second half of each said series when said tape moves in the opposite direction, the arrangement enabling repetitive playback of the information items of said series by back-and-forth movement of said tape past said reading means.
Claim 3
Dependent Claim
87 words
A device as claimed in claim 1 wherein said tape-driving means are arranged to displace said tape by half a step of said step-by-step movement each time said movement is reversed to allow reading of information bits of said first half-series recorded on the tape at a first set of spaced apart locations and of the said second half-series recorded on the tape at a second set of spaced apart locations, said first and second locations being longitudinally offset by a distance of said half a step.
Claim 4
Dependent Claim
29 words
A device as claimed in claim 1 wherein said main reading elements are adapted to read the information bits between successive stops of said step-by-step movement of the tape.
Claim 5
Dependent Claim
96 words
A device as claimed in claim 1 wherein said reading means include at least a second pair of reading elements associated with said means for controlling playback and adapted to respectively read a series of synchronization marks recorded along a pair of corresponding longitudinal tracks to allow synchronization marks recorded on one track of said pair to be read by the corresponding reading element when thE tape travels in said one direction and the synchronization marks recorded on the other track of said pair to be read when the film is travelling in said opposite direction.
Claim 6
Dependent Claim
68 words
A device as claimed in claim 4, wherein said means for controlling playback include a plurality of ''''AND'''' circuits each having a first input for receiving pulses from one of said main reading elements and a second input for receiving pulses from one reading element of said second pair of reading elements, and each adapted to deliver a control pulse upon receiving coinciding pulses at said two inputs.
Claim 7
Dependent Claim
86 words
A device as claimed in claim 1 wherein a first set of said main reading elements is adapted to read bits of information belonging to said first half-series, said bit being recorded on a first set of tracks, and a second set of said main reading elements is adapted to read bits of information belonging to said second half-series, said bits being recorded on a second set of tracks, whereby each of said tracks may include only bits of information belonging to one of said half-series.
Claim 8
Dependent Claim
34 words
A device as claimed in claim 1 wherein the reading means include, for each track, a photoelectric cell adapted to read the items of information ''''on the hop'''' between consecutive stops of the film.
Claim 9
Dependent Claim
141 words
A device as claimed in claim 5 wherein the output of each ''''AND'''' circuit is connected to one of two inputs of an intermediate storage element able to assume a 0 state and a 1 state, the other input of said element being adapted to receive pulses emitted by a pulse-generating member of said machine, and wherein the output of said element is connected to one of two inputs of a working memory also able to assume a 0 state and a 1 state, the other input of said memory being adapted to receive the pulses emitted by said member, the arrangement being such that at each of said latter pulses, the 0 or 1 state of said intermediate storage element may be transferred to said working memory, said working memory being adapted to control an electromechanical component of said machine.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |