US4399355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display apparatus for tape running positions
Assignee: Olympus Corp
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Filing: 1980-12-23
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Granted: 1983-08-16
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Expires: 2000-12-23
Abstract
Abstract A display apparatus for tape running positions is provided with a first pulse generator (36) for generating m first pulses for each revolution of a supply reel (12) in a tape transport, a second pulse generator (38) for generating n second pulses for each revolution of a take-up reel (14), and a counter (44 to 48) for counting the number of the first pulses during one period of the second pulse. The ratio of count value change in the counter for a time period from the start to the end of the tape running is expanded to the square of the change ratio of rotational speed of the reel from the beginning to the end of the tape winding. A counting range of the counter at this time is proportional to m/n.
Inventors
- 👤 Ken Satoh
- 👤 Kenzi Furuta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:27
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/10; G11B27/34; G11B27/11; G11B27/13
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
258 words
A display apparatus for tape running positions comprising: a tape transport system in which the rotational speeds of first and second reels vary according to an amount of running of a tape; first generator means connected to said first reel for generating m number of pulses constituting a first signal for each revolution of said first reel; second signal generator means connected to said second reel for generating n number of pulses constituting a second signal for each revolution of said second reel; counter means connected to said first and second signal generator means for counting the repetitive pulse number of said first signal appearing during one cycle period of said second signal, the count operation of said counter means being carried out so that Cmax-Cmin=m/n (N-1/N) where Cmax denotes a maximum count of the repetitive pulse number of said first signal appearing during one cycle period of said second signal, Cmin a minimum count thereof, and N a rotational speed change of said first and second reels; display means connected to said counter means for displaying an amount of running of the tape according to count data obtained from the count operation of said counter means; a shift register connected to said first and second signal generator means and adapted to be clocked by said first signal and reset by said second signal; and a display array including display elements connected to output terminals of said shift register in which the energizing state of said display elements varies according to an amount of running of the tape.
Claim 2
Dependent Claim
258 words
A display apparatus for tape running positions comprising: a tape transport system in which the rotational speeds of first and second reels vary according to an amount of running of a tape; first generator means connected to said first reel for generating m number of pulses constituting a first signal for each revolution of said first reel; second signal generator means connected to said second reel for generating n number of pulses constituting a second signal for each revolution of said second reel; counter means connected to said first and second signal generator means for counting the repetitive pulse number of said first signal appearing during one cycle period of said second signal, the count operation of said counter means being carried out so that Cmax-Cmin=m/n (N-1/N) where Cmax denotes a maximum count of the repetitive pulse number of said first signal appearing during one cycle period of said second signal, Cmin a minimum count thereof, and N a rotational speed change of said first and second reels; display means connected to said counter means for displaying an amount of running of the tape according to count data obtained from the count operation of said counter means; a shift register connected to said first and second signal generator means and adapted to be clocked by said first signal and reset by said second signal; and a display array including display elements connected to output terminals of said shift register in which the energizing state of said display elements varies according to an amount of running of the tape.
Claim 3
Dependent Claim
58 words
A display apparatus according to claim 1, further comprising means connected, in order to increase a ratio m/n of the pulse number m of said first signal to the pulse number n of said second signal, between said first reel and said first signal generator means for providing a higher rotational speed than that of said first reel.
Claim 4
Dependent Claim
58 words
A display apparatus according to claim 1, further comprising means connected, in order to increase a ratio m/n of the pulse number m of said first signal to the pulse number n of said second signal, between said second reel and said second signal generator means for providing a lower rotational speed than that of said second reel.
Claim 5
Dependent Claim
66 words
A display apparatus according to claim 1 further comprising set/reset flip-flops connected at the set input terminals to output terminals of said shift register, adapted to receive said second signal at the reset input terminals and connected at the output terminals to said display elements, respectively, so that the energizing number of said display elements is increased as an amount of running of the tape increases.
Claim 6
Dependent Claim
39 words
A display apparatus according to claim 1, wherein, in order to indicate a tape running position at an initial stage of the running of the tape, predetermined output terminals of said shift register are unconnected to said display elements.
Claim 7
Dependent Claim
18 words
A display apparatus according to claim 1, wherein said display elements are arranged in a straight line array.
Claim 8
Dependent Claim
17 words
A display apparatus according to claim 1, wherein said display elements are arranged in a curved form.
Claim 9
Dependent Claim
17 words
A display apparatus according to claim 1, wherein said display elements are arranged in a ring array.
Claim 10
Dependent Claim
134 words
A display apparatus for tape running positions comprising: a tape transport system in which the rotational speeds of first and second reels vary according to an amount of running of the tape; first signal generator means connected to said first reel for generating pulses constituting a first signal for each revolution of said first reel; second signal generator means connected to said second reel for generating pulses constituting a second signal for each revolution of said second reel; a Miller integrator connected to said first and second signal generator means for integrating said first signal appearing during one cycle period of said second signal, said Miller integrator being reset by said second signal and a maximum level of an integration output being displayed by a display device which is applied to said Miller integrator.
Claim 11
Dependent Claim
134 words
A display apparatus for tape running positions comprising: a tape transport system in which the rotational speeds of first and second reels vary according to an amount of running of the tape; first signal generator means connected to said first reel for generating pulses constituting a first signal for each revolution of said first reel; second signal generator means connected to said second reel for generating pulses constituting a second signal for each revolution of said second reel; a Miller integrator connected to said first and second signal generator means for integrating said first signal appearing during one cycle period of said second signal, said Miller integrator being reset by said second signal and a maximum level of an integration output being displayed by a display device which is applied to said Miller integrator.
Claim 12
Dependent Claim
39 words
A display apparatus according to claim 9, wherein an integrating constant is beforehand set in said integrator at an initial stage of the running of the tape so as to neutralize said integration output corresponding to said first signal.
Claim 13
Dependent Claim
202 words
A display apparatus for tape running positions comprising: a tape transport system in which the rotational speeds of first and second reels vary according to an amount of running of a tape; first signal generator means connected to said first reel for generating pulses constituting a first signal for each revolution of said first reel; second signal generator means connected to said second reel for generating pulses constituting a second signal for each revolution of said second reel; a shift register connected to said first and second signal generator means for producing a shift pulse and adapted to be clocked by said first signal and reset by said second signal; and a converter connected to output terminals of said shift register for receiving shift pulses appearing at the output terminals of said shift register and for producing an output signal whose level varies in a staircase fashion depending on the clocked state of said shift register, said output signal being displayed by a display device which is applied to said converter, wherein, in order to indicate a tape running position at an initial stage of the running of the tape, predetermined output terminals of said shift register are unconnected to said converter.
Claim 14
Dependent Claim
202 words
A display apparatus for tape running positions comprising: a tape transport system in which the rotational speeds of first and second reels vary according to an amount of running of a tape; first signal generator means connected to said first reel for generating pulses constituting a first signal for each revolution of said first reel; second signal generator means connected to said second reel for generating pulses constituting a second signal for each revolution of said second reel; a shift register connected to said first and second signal generator means for producing a shift pulse and adapted to be clocked by said first signal and reset by said second signal; and a converter connected to output terminals of said shift register for receiving shift pulses appearing at the output terminals of said shift register and for producing an output signal whose level varies in a staircase fashion depending on the clocked state of said shift register, said output signal being displayed by a display device which is applied to said converter, wherein, in order to indicate a tape running position at an initial stage of the running of the tape, predetermined output terminals of said shift register are unconnected to said converter.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-15 | 1987-02-14 | 1987-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-15 | 1991-02-14 | 1991-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-15 | 1995-02-14 | 1995-08-16 | $7700.00 | Window Closed / Lapsed |