US3861622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape drive system
Assignee: Panasonic Holdings Corp
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Filing: 1973-11-09
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Granted: 1975-01-21
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Expires: 1993-11-09
Abstract
Abstract A magnetic tape drive system for controlling a tape consisting of a magnetic tape provided at the leading end with a transparent leader tape and at the trailing end with a transparent trailer tape according to the output of a detecting means for discriminating the magnetic tape from the transparent tape when the tape is travelling along a tape path. The rewinding state can be brought about at any time. The tape is stopped a predetermined time after the detection of the transparent tape by the detecting means. Playback or fast feed is possible only when the detecting means provide a magnetic tape detection output.
Inventors
- 👤 Noboru Wakami
- 👤 Toshiomi Yabu
- 👤 Hiroo Hosono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:02
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
157 words
A magnetic tape drive system comprising; a tape consisting of a magnetic tape provided at the leading end with a transparent leader tape and at the trailing end with a transparent trailer tape; a take-up means for taking up said tape on a take-up reel through a predetermined tape path from a supply reel on which said tape is wound; a rewinding means for rewinding said tape on said supply reel; a detecting means provided in said predetermined tape path for discriminating the transparent tapes from the magnetic tape; stopping means for releasing said rewinding means; and source voltage supplying means for supplying a source voltage to said stopping means, said source voltage supplying means including a first series circuit consisting of a first switch for driving said rewinding means when the first switch is closed, a second switch adapted to be closed upon detection of the transparent tape by said detecting means and a delay circuit.
Claim 2
Dependent Claim
157 words
A magnetic tape drive system comprising; a tape consisting of a magnetic tape provided at the leading end with a transparent leader tape and at the trailing end with a transparent trailer tape; a take-up means for taking up said tape on a take-up reel through a predetermined tape path from a supply reel on which said tape is wound; a rewinding means for rewinding said tape on said supply reel; a detecting means provided in said predetermined tape path for discriminating the transparent tapes from the magnetic tape; stopping means for releasing said rewinding means; and source voltage supplying means for supplying a source voltage to said stopping means, said source voltage supplying means including a first series circuit consisting of a first switch for driving said rewinding means when the first switch is closed, a second switch adapted to be closed upon detection of the transparent tape by said detecting means and a delay circuit.
Claim 3
Dependent Claim
214 words
A magnetic tape drive system comprising: a tape consisting of a magnetic tape provided at the leading end with a transparent leader tape and at the trailing end with a transparent trailer tape; a take-up means for taking up said tape on a take-up reel through a predetermined tape path from a supply reel on which said tape is wound; a rewinding means for rewinding said tape on said supply reel; a detecting means provided in said predetermined tape path for discriminating the transparent tapes from the magnetic tape; a fast feeding means for feeding the tape first on said take-up reel; source voltage supplying means for supplying a source voltage to said stopping means, said source voltage supplying means including a first series circuit consisting of a first switch for driving said rewinding means when the first switch is closed, a second switch adapted to be closed upon detection of the transparent tape by said detecting means and a delay circuit; and a second series circuit in parallel with said source voltage supplying means, said second series circuit including a third switch adapted to drive said fast feeding means when the third switch is closed, and a fourth switch adapted to be closed upon detection of the magnetic tape by said detecting means.
Claim 4
Dependent Claim
214 words
A magnetic tape drive system comprising: a tape consisting of a magnetic tape provided at the leading end with a transparent leader tape and at the trailing end with a transparent trailer tape; a take-up means for taking up said tape on a take-up reel through a predetermined tape path from a supply reel on which said tape is wound; a rewinding means for rewinding said tape on said supply reel; a detecting means provided in said predetermined tape path for discriminating the transparent tapes from the magnetic tape; a fast feeding means for feeding the tape first on said take-up reel; source voltage supplying means for supplying a source voltage to said stopping means, said source voltage supplying means including a first series circuit consisting of a first switch for driving said rewinding means when the first switch is closed, a second switch adapted to be closed upon detection of the transparent tape by said detecting means and a delay circuit; and a second series circuit in parallel with said source voltage supplying means, said second series circuit including a third switch adapted to drive said fast feeding means when the third switch is closed, and a fourth switch adapted to be closed upon detection of the magnetic tape by said detecting means.
Claim 5
Dependent Claim
216 words
A magnetic tape drive system comprising: a tape consisting of a magnetic tape provided at the leading end with a transparent leader tape and at the trailing end with a transparent trailer tape; a take-up means for taking up said tape on a take-up reel through a predetermined tape path from a supply reel on which said tape is wound; a rewinding means for rewinding said tape on said supply reel; a detecting means provided in said predetermined tape path for discriminating the transparent tapes from the magnetic tape; a playback feeding means for feeding the tape at playback speed on the take-up reel; source voltage supplying means for supplying a source voltage to said stopping means, said source voltage supplying means including a first series circuit consisting of a first switch for driving said rewinding means when the first switch is closed, a second switch adapted to be closed upon detection of the transparent tape by said detecting means and a delay circuit; and a third series circuit in parallel with said source voltage supplying means, said third series circuit including a fifth switch adapted to drive said playback feeding means when the fifth switch is closed, and a sixth switch adapted to be closed upon detection of the magnetic tape by said detecting means.
Claim 6
Dependent Claim
216 words
A magnetic tape drive system comprising: a tape consisting of a magnetic tape provided at the leading end with a transparent leader tape and at the trailing end with a transparent trailer tape; a take-up means for taking up said tape on a take-up reel through a predetermined tape path from a supply reel on which said tape is wound; a rewinding means for rewinding said tape on said supply reel; a detecting means provided in said predetermined tape path for discriminating the transparent tapes from the magnetic tape; a playback feeding means for feeding the tape at playback speed on the take-up reel; source voltage supplying means for supplying a source voltage to said stopping means, said source voltage supplying means including a first series circuit consisting of a first switch for driving said rewinding means when the first switch is closed, a second switch adapted to be closed upon detection of the transparent tape by said detecting means and a delay circuit; and a third series circuit in parallel with said source voltage supplying means, said third series circuit including a fifth switch adapted to drive said playback feeding means when the fifth switch is closed, and a sixth switch adapted to be closed upon detection of the magnetic tape by said detecting means.
Claim 7
Dependent Claim
183 words
A megnetic tape drive system comprising: a tape consisting of a magnetic tape provided at the leading end with a transparent leader tape and at the trailing end with a transparent trailer tape; a take-up means for taking up said tape on a take-up reel through a predetermined tape path from a supply reel on which said tape is wound; a rewinding means for rewinding said tape on said supply reel; a detecting means provided in said predetermined tape path for discriminating the transparent tapes from the magnetic tape; stopping means for releasing said rewinding means; and source voltage supplying means for supplying a source voltage to said stopping means, said source voltage supplying means including a first series circuit consisting of a first switch for driving said rewinding means when the first switch is closed, a second switch adapted to be closed upon detection of the transparent tape by said detecting means and a delay circuit, the delay time of said delay circuit being longer than the time required for taking up the leader tape or trailer tape in the rewinding mode.
Claim 8
Dependent Claim
183 words
A megnetic tape drive system comprising: a tape consisting of a magnetic tape provided at the leading end with a transparent leader tape and at the trailing end with a transparent trailer tape; a take-up means for taking up said tape on a take-up reel through a predetermined tape path from a supply reel on which said tape is wound; a rewinding means for rewinding said tape on said supply reel; a detecting means provided in said predetermined tape path for discriminating the transparent tapes from the magnetic tape; stopping means for releasing said rewinding means; and source voltage supplying means for supplying a source voltage to said stopping means, said source voltage supplying means including a first series circuit consisting of a first switch for driving said rewinding means when the first switch is closed, a second switch adapted to be closed upon detection of the transparent tape by said detecting means and a delay circuit, the delay time of said delay circuit being longer than the time required for taking up the leader tape or trailer tape in the rewinding mode.
Claim 9
Dependent Claim
200 words
A magnetic tape drive system comprising: a tape consisting of a magnetic tape provided at the leading end with a transparent leader tape and at the trailing end with a transparent trailer tape; a take-up means for taking up said tape on a take-up reel through a predetermined tape path from a supply reel on which said tape is wound; a rewinding means for rewinding said tape on said supply reel; a detecting means provided in said predetermined tape path for discriminating the transparent tapes from the magnetic tape; stopping means for releasing said rewinding means; source voltage supplying means for supplying a source voltage to said stopping means, said source voltage supplying means including a first series cirCuit consisting of a first switch for driving said rewinding means when the first switch is closed, a second switch adapted to be closed upon detection of the transparent tape by said detecting means and a delay circuit; a seventh switch inserted beween said source voltage supplying means and said source voltage, said seventh switch being closed during auto-threading; and a second delay circuit connected between said seventh switch and said stopping means to connect said voltage source to said stopping means.
Claim 10
Dependent Claim
200 words
A magnetic tape drive system comprising: a tape consisting of a magnetic tape provided at the leading end with a transparent leader tape and at the trailing end with a transparent trailer tape; a take-up means for taking up said tape on a take-up reel through a predetermined tape path from a supply reel on which said tape is wound; a rewinding means for rewinding said tape on said supply reel; a detecting means provided in said predetermined tape path for discriminating the transparent tapes from the magnetic tape; stopping means for releasing said rewinding means; source voltage supplying means for supplying a source voltage to said stopping means, said source voltage supplying means including a first series cirCuit consisting of a first switch for driving said rewinding means when the first switch is closed, a second switch adapted to be closed upon detection of the transparent tape by said detecting means and a delay circuit; a seventh switch inserted beween said source voltage supplying means and said source voltage, said seventh switch being closed during auto-threading; and a second delay circuit connected between said seventh switch and said stopping means to connect said voltage source to said stopping means.
References Cited (Backward Citations)
US3127120A
Cited
US3706844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |