US3706859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unidirectional tape motion detection apparatus and automatic tape return
Assignee: Lanier Electronic Laboratories Inc
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Filing: 1969-09-26
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Granted: 1972-12-19
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Expires: 1989-09-26
Abstract
Abstract In dictation systems in which magnetic tape is stored in bins, unidirectional tape motion switches and related control and monitor circuits are provided to automatically return previously reversed but unlistened tape to the place where the dictation was terminated. Also provided are unidirectional switches and circuitry to determine the accumulative length of tape transcribed and/or dictated and awaiting transcription.
Inventors
- 👤 William M Nye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:33
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/20
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
115 words
In a tape device in which tape is moved for recording or transcribing, first driving means for driving a tape in a transcribing mode, second driving means for driving a tape in a recording mode, and indicating means for indicating the amount of tape which has been driven in the recorded mode but not yet transcribed, said indicating means including a differential meter operative to show an increase of recorded untranscribed tape when said device is solely in the recording mode, a decrease in recorded untranscribed tape when said device is solely in a transcribing mode, and an unchanged inventory of recorded untranscribed tape when said device is simultaneously in said recording and transcribing modes.
Claim 2
Dependent Claim
115 words
In a tape device in which tape is moved for recording or transcribing, first driving means for driving a tape in a transcribing mode, second driving means for driving a tape in a recording mode, and indicating means for indicating the amount of tape which has been driven in the recorded mode but not yet transcribed, said indicating means including a differential meter operative to show an increase of recorded untranscribed tape when said device is solely in the recording mode, a decrease in recorded untranscribed tape when said device is solely in a transcribing mode, and an unchanged inventory of recorded untranscribed tape when said device is simultaneously in said recording and transcribing modes.
Claim 3
Dependent Claim
121 words
In a tape device in which tape is moved for recording or transcribing, first driving means for driving a tape in a transcribing mode, second driving means for driving a tape in a recording mode, first tape motion responsive means responsive to tape driven in the transcription mode by said first driving means and not previously driven in the transcription mode, second tape motion responsive means responsive to tape driven in the recording mode by said second driving means and not previously driven in the recording mode, and indicating means selectively operative in response to said first and second tape motion responsive means for indicating the amount of tape which has been driven in the recorded mode, but not yet transcribed.
Claim 4
Dependent Claim
121 words
In a tape device in which tape is moved for recording or transcribing, first driving means for driving a tape in a transcribing mode, second driving means for driving a tape in a recording mode, first tape motion responsive means responsive to tape driven in the transcription mode by said first driving means and not previously driven in the transcription mode, second tape motion responsive means responsive to tape driven in the recording mode by said second driving means and not previously driven in the recording mode, and indicating means selectively operative in response to said first and second tape motion responsive means for indicating the amount of tape which has been driven in the recorded mode, but not yet transcribed.
Claim 5
Dependent Claim
56 words
In the tape device of claim 2, means responsive to the completion of tape transcription and concurrently responsive to said indicating means indicating An amount of tape which has been driven in the recorded mode but which has not yet been transcribed, to cause said indicating means to become indicative of the completion of tape transcription.
Claim 6
Dependent Claim
16 words
In the tape device of claim 2 further including means for additionally accumulatively indicating tape transcribed.
Claim 7
Dependent Claim
23 words
In the tape device of claim 4 further including means for automatically returning reversed tape to its position at which said reversal began.
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) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |