US3921215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recording and reproducing system with tape counter
Assignee: Panasonic Holdings Corp
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Filing: 1974-06-24
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Granted: 1975-11-18
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Expires: 1994-06-24
Abstract
Abstract There is provided a magnetic recording and reproducing system comprising a tape counter for counting the tape progress, means for starting the tape rewind operation in the mid course or at the end of the playback operation by operating a rewind lever, means for stopping the rewind operation when the display of the tape counter becomes a predetermined value, means for starting the rewind or fast feed operation in the mid course of the playback operation without rendering the playback lever inoperative by operating the rewind lever or a fast feed lever, and means for resuming the playback operation when the rewind or fast feed lever is restored or rendered inoperative.
Inventors
- 👤 Etsuji Asami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:40
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/005; G11B15/02; G11B15/10; G11B27/00; G11B27/10; G11B27/34
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
185 words
A magnetic recording and reproducing system comprising: first means for obtaining a playback operation and including a playback lever, second means for obtaining a rewind operation and including a rewind lever, third means for obtaining a fast feed operation and including a fast feed lever, fourth means for operating said means for obtaining the rewind or fast feet operation by interrupting the playback operation without restoring the playback lever with the driving of the rewind lever or fast feed lever, fifth means for manually or automatically restoring the rewind lever or fast feed lever for the purpose of resuming the playback operation by rendering the means for obtaining the rewind or fast feed operation inoperative, said fifth means comprising a first slidable lever having means for locking the rewind and fast feed levers in the operative state and a second slidable lever having means for locking the playback lever in the operative state, and means for deviating said first slidable lever in a direction not to lock said rewind and fast feed levers by said playback lever at the time of operation of the same.
Claim 2
Dependent Claim
185 words
A magnetic recording and reproducing system comprising: first means for obtaining a playback operation and including a playback lever, second means for obtaining a rewind operation and including a rewind lever, third means for obtaining a fast feed operation and including a fast feed lever, fourth means for operating said means for obtaining the rewind or fast feet operation by interrupting the playback operation without restoring the playback lever with the driving of the rewind lever or fast feed lever, fifth means for manually or automatically restoring the rewind lever or fast feed lever for the purpose of resuming the playback operation by rendering the means for obtaining the rewind or fast feed operation inoperative, said fifth means comprising a first slidable lever having means for locking the rewind and fast feed levers in the operative state and a second slidable lever having means for locking the playback lever in the operative state, and means for deviating said first slidable lever in a direction not to lock said rewind and fast feed levers by said playback lever at the time of operation of the same.
Claim 3
Dependent Claim
91 words
The magnetic recording and reproducing system according to claim 1, wherein said fourth means includes a means for locking the rewind lever when the rewind lever is advanced by operating a rewind knob in the playback state of the system, and also wherein said fifth means, includes a tape counter and means for releaSing the locking of the rewind lever upon reaching of a predetermined value of said counter, whereby the playback state may be automatically brought about again due to the releasing of the rewind lever by said releasing means.
Claim 4
Dependent Claim
93 words
The magnetic recording and reproducing system according to claim 2, wherein said locking means includes a rotatable locking lever spring biased in one direction, said locking lever being engageable with an engagement portion of the rewind lever, and also wherein said releasing means includes a releasing plunger having a movable member related to an end of an elongated portion of said locking lever, said plunger being actuated upon reaching of the predetermined value of the indication of the tape progress counter to release the locking of the rewind lever by the locking lever.
Claim 5
Dependent Claim
52 words
The magnetic recording and reproducing system according to claim 3, which further comprises an engagement knob lever to engage with an engagement portion provided on the elongated portion of said locking lever and operable to release the locking of the rewind lever by the locking lever upon actuation of said engagement knob.
Claim 6
Dependent Claim
34 words
The magnetic recording and reproducing system according to claim 3, which further comprises a releasing lever to cooperating with the locking lever to release the locking of the rewind lever by the locking lever.
Claim 7
Dependent Claim
51 words
The magnetic recording and reproducing system according to claim 2, wherein said fifth means has a switch adapted to be closed upon reaching of a predetermined value of the indication of the tape progress counter and a resetting mechanism for automatically bringing about the playback state from a desired tape position.
Claim 8
Dependent Claim
76 words
The magnetic recording and reproducing system according to claim 2, which further comprises an automatic playback selection switch, said releasing means being operable in the ''''on'''' state of said automatic playback selection switch, said means for obtaining the rewind operation being permitted to be operative until the tape is rewound up to the initial end thereof irrespective of the indication value of the tape progress counter in the ''''off'''' state of said automatic playback selection switch.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |