Patent FR379191A successfully refreshed from Google Patents.
Patent US4764822A successfully refreshed from Google Patents.
US4764822A
Expired / Lapsed
US
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Method for recording cue signal
Assignee: Panasonic Holdings Corp
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Filing: 1986-03-21
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Granted: 1988-08-16
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Expires: 2006-03-21
Abstract
Abstract The present invention relates to a cue signal recording method in which multi-audio tracks are formed by dividing a magnetic tape in a widthwise direction, and PCM data is recorded in a scanning track segment of an audio track of the multi-audio tracks by a helically scanning rotary head. A cue signal is then recorded in a remaining area of the scanning track segment except for the area recorded with the PCM data, such as in the after-recording-margin area or the track-guard area which is immediately after the PCM data area.
Inventors
- 👤 Hiroshi Taniguchi
- 👤 Mitsunobu Furumoto
- 👤 Kanji Kubo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:15
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/05; G11B15/087; G11B27/00; G11B27/02; G11B27/031; G11B27/036; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3018; G11B2220/00; G11B2220/90; G11B2220/91; G11B2220/913; G11B27/032
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
126 words
A method for recording a cue signal, comprising the steps of: recording a time-compressed PCM audio signal on multi-audio tracks, said tracks being formed by dividing a magnetic tape in a widthwise direction, using a rotary head rotating along a helical scanning path; and recording cue signals on a desired audio track of said multi-audio tracks at a desired lengthwise position of the recorded magnetic tape, said cue signals being recorded in at least one of an after-recording-margin area and a track-guard area which is immediately after a PCM data area, a recording timing of said cue signal being produced on the basis of a detection pulse which is phase-shifted by a predetermined phase amount from a signal indicating the rotation phase of the rotary head.
Claim 2
Independent Claim
126 words
A method for recording a cue signal, comprising the steps of: recording a time-compressed PCM audio signal on multi-audio tracks, said tracks being formed by dividing a magnetic tape in a widthwise direction, using a rotary head rotating along a helical scanning path; and recording cue signals on a desired audio track of said multi-audio tracks at a desired lengthwise position of the recorded magnetic tape, said cue signals being recorded in at least one of an after-recording-margin area and a track-guard area which is immediately after a PCM data area, a recording timing of said cue signal being produced on the basis of a detection pulse which is phase-shifted by a predetermined phase amount from a signal indicating the rotation phase of the rotary head.
Claim 3
Independent Claim
123 words
A method for recording a cue signal, comprising the steps of: recording a time-compressed PCM audio signal on multi-audio tracks, said tracks being formed by dividing a magnetic tape in a widthwise direction, using a rotary head rotating along a helical scanning path; and recording cue signals on a desired audio track of said multi-audio tracks at a desired lengthwise position of the recorded magnetic tape, said cue signals being recorded in at least one of an after-recording-margin area and a track-guard area which is immediately after a PCM data area, a recording timing of said cue signal being produced on the basis of a detection pulse of an ending position of a reproduced PCM data area using predetermined reproduced PCM address data.
Claim 4
Independent Claim
123 words
A method for recording a cue signal, comprising the steps of: recording a time-compressed PCM audio signal on multi-audio tracks, said tracks being formed by dividing a magnetic tape in a widthwise direction, using a rotary head rotating along a helical scanning path; and recording cue signals on a desired audio track of said multi-audio tracks at a desired lengthwise position of the recorded magnetic tape, said cue signals being recorded in at least one of an after-recording-margin area and a track-guard area which is immediately after a PCM data area, a recording timing of said cue signal being produced on the basis of a detection pulse of an ending position of a reproduced PCM data area using predetermined reproduced PCM address data.
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) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |