US3560665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work study recording system
Assignee: Rolls Royce PLC
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Filing: 1968-10-03
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Granted: 1971-02-02
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Expires: 1988-10-03
Abstract
Abstract A work study recording system is described for analyzing a worker''s performance of a production process or the like, consisting of a number of operations. The recording system includes an electrical information generating circuit connected to a recording means and a replay circuit also connected to the recording means for converting the recorded information into useable information. The electrical information generating circuit includes a transducer for converting spoken information into an electrical signal to be recorded, a means for generating electrical timing signals corresponding to the commencement and termination of each of the operations in the process which are recorded on the recording means and a manually operable means for recording further coded information on the recording means. The replay circuit receives the recorded signals from the recording means and measures the intervals between successive timing signals and it includes a printing device connected to receive signals from the replay circuit for printing the duration of each interval and the further coded information.
Inventors
- 👤 Laurence Howard Pountney
- 👤 Clifford R Amsbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:31
CPC Classifications
G; G07; G07C; G07C1/00; G07C1/02; A; A45; A45C; A45C3/00; A45C5/00; A45C5/02; G11; G11B; G11B27/00; G11B27/10; G11B27/19; G11B27/28; G11B27/30
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
216 words
A work study recording system for analyzing a worker''s performance of a production process or like task consisting of a number of operations, said recording system comprising an electrical information generating means electrically connected to a recording means, said electrical information generating means comprising: means for converting spoken information in the form of sound pressure waves to an electrical signal and for communicating same to said recording means, means for generating and communicating to said recording means electrical timing signals corresponding to the commencement and termination of each said operation in said process, and manually operable means for generating and communicating further coded information in the form of electrical signals to said recording means, said means for generating and communicating electrical timing signals and said manually operable means comprising; a first pulse generator, a second pulse generator having the electrical output thereof connected to said first pulse generator, a first counter connected to the output of said first pulse generator, and said second pulse generator being connected to said first pulse generator for modulating the pulses from said first pulse generator until a predetermined number of pulses from said first pulse generator have been counted by said first counter, said predetermined number of pulses from said first pulse generator being representative of said further coded information.
Claim 2
Dependent Claim
216 words
A work study recording system for analyzing a worker''s performance of a production process or like task consisting of a number of operations, said recording system comprising an electrical information generating means electrically connected to a recording means, said electrical information generating means comprising: means for converting spoken information in the form of sound pressure waves to an electrical signal and for communicating same to said recording means, means for generating and communicating to said recording means electrical timing signals corresponding to the commencement and termination of each said operation in said process, and manually operable means for generating and communicating further coded information in the form of electrical signals to said recording means, said means for generating and communicating electrical timing signals and said manually operable means comprising; a first pulse generator, a second pulse generator having the electrical output thereof connected to said first pulse generator, a first counter connected to the output of said first pulse generator, and said second pulse generator being connected to said first pulse generator for modulating the pulses from said first pulse generator until a predetermined number of pulses from said first pulse generator have been counted by said first counter, said predetermined number of pulses from said first pulse generator being representative of said further coded information.
Claim 3
Dependent Claim
61 words
The recording system defined in claim 1 comprising in addition a replay circuit connected to said recording means for receiving electrical signals therefrom, said replay circuit including means for measuring the intervals between successive timing signals and a printing means connecTed to receive signals from said replay circuit for printing the duration of each said interval and said further coded information.
Claim 4
Dependent Claim
20 words
The recording system defined in claim 1 wherein said first pulse generator and said second pulse generator are multivibrator circuits.
Claim 5
Dependent Claim
35 words
The recording system defined in claim 2 wherein said replay circuit includes means for demodulating said modulated pulses from said first pulse generator and a second counter connected to receive and count said demodulated pulses.
Claim 6
Dependent Claim
67 words
The recording system defined in claim 4 wherein said means for demodulating comprises a filter to transmit only those recorded signals having a frequency in the region of the frequency of the pulses from said second pulse generator, a rectifying circuit connected to receive and rectify the filtered signal from said filter and a Schmitt trigger circuit connected to receive the rectified signal from said rectifying circuit.
Claim 7
Dependent Claim
70 words
The recording system defined in claim 4 wherein said replay circuit further includes a clock pulse generator, a third counter connected to be driven by said clock pulse generator and having a plurality of outputs which are to be cyclically energized, and a fourth counter connected to be driven by one of said outputs of said third counter and to be reset to zero in response to successive timing signals.
Claim 8
Dependent Claim
18 words
A recording system defined in claim 6 wherein said clock pulse generator comprises a Wien bridge oscillator circuit.
Claim 9
Dependent Claim
62 words
The recording system defined in claim 6 wherein said cyclically energized outputs of said third counter produce, in response to each said timing signal, a first control signal which is operative to cause said printing device to print the totals accumulated in said second and fourth counters and a second control signal which is operative to reset said second and fourth counters.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |