US5227892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for identifying and selecting edit paints in digital audio signals recorded on a record medium
Assignee: Sony United Kingdom Ltd
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Filing: 1991-05-24
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Granted: 1993-07-13
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Expires: 2011-05-24
Abstract
Abstract Apparatus for identifying edit points in a digital audio signal recorded on a record medium in association with a video signal and a time code signal, comprises a random access memory (3) for storing a reproduced segment of the digital audio signal and the associated time code signal, a monitor (2) for displaying the image corresponding to a reproduced portion of the associated video signal, a digital-to-analog converter for converting that part of the segment of the digital audio signal corresponding to the displayed image and read from the random access memory (3) by reference to the stored time code for reproduction by a loudspeaker (4), a video screen (6) for displaying the waveform of the analog-converted audio signal with a cursor (8) which relates the waveform to the image displayed on the monitor (2), and a register (7) for recording the time code read from the random access memory (3) and corresponding to a required audio edit point at which the cursor is positioned.
Inventors
- 👤 Robin L. Lince
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:04
CPC Classifications
G; G11; G11B; G11B27/00; G11B27/02; G11B27/031; G11B27/032; G11B27/10; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3036; G11B27/3054; G11B27/34; G11B2220/00; G11B2220/90
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
191 words
A method of identifying and selecting edit points in a digital audio signal recorded on a record medium in association with a video signal and a time code signal, the method comprising: storing a segment of said digital audio signal and the associated time code signal in a random access memory; reproducing the associated video signal from the record medium and displaying a corresponding image on a monitor; reading from said random access memory, by reference to the stored time code, a part of said segment of said digital audio signal which corresponds to the displayed image; digital-to-analog converting the part of said segment of said digital audio signal read from the random access memory to an analog audio signal and audibly reproducing said analog audio signal; displaying a waveform of said analog audio signal with a cursor positioned relative to said waveform in correspondence to the displayed image; varying the position of said cursor relative to said waveform while correspondingly changing the displayed image; selecting a position of said cursor relative to said waveform as an audio edit point; and storing a time code corresponding to said audio edit point.
Claim 2
Independent Claim
191 words
A method of identifying and selecting edit points in a digital audio signal recorded on a record medium in association with a video signal and a time code signal, the method comprising: storing a segment of said digital audio signal and the associated time code signal in a random access memory; reproducing the associated video signal from the record medium and displaying a corresponding image on a monitor; reading from said random access memory, by reference to the stored time code, a part of said segment of said digital audio signal which corresponds to the displayed image; digital-to-analog converting the part of said segment of said digital audio signal read from the random access memory to an analog audio signal and audibly reproducing said analog audio signal; displaying a waveform of said analog audio signal with a cursor positioned relative to said waveform in correspondence to the displayed image; varying the position of said cursor relative to said waveform while correspondingly changing the displayed image; selecting a position of said cursor relative to said waveform as an audio edit point; and storing a time code corresponding to said audio edit point.
Claim 3
Dependent Claim
34 words
A method according to claim 1, further comprising the step of displaying a time graph in association with said waveform and said cursor, said time graph being based upon the stored time code signal.
Claim 4
Dependent Claim
36 words
A method according to claim 1, further comprising the step of displaying time codes in numerical form in association with said waveform and said cursor, the displayed time codes corresponding to the stored time code signal.
Claim 5
Dependent Claim
35 words
A method according to claim 1 wherein the step of storing a time code corresponding to said audio edit point comprises storing the corresponding time code in an edit point register in an edit controller.
Claim 6
Dependent Claim
27 words
A method according to claim 1, wherein the step of reproducing the analog audio signal audibly comprises reproducing the analog audio signal by means of a loudspeaker.
Claim 7
Dependent Claim
214 words
Apparatus for identifying and selecting edit points in a digital audio signal recorded on a record medium in association with a video signal and a time code signal, the apparatus comprising: random access memory means for storing a reproduced segment of said digital audio signal and the associated time code signal; monitor means for displaying an image corresponding to a reproduced associated video signal; means for reading from said random access memory means, by reference to the stored time code signal, a part of said segment of said digital audio signal which corresponds to the displayed image; digital-to-analog converter means for converting the part of said segment of said digital audio signal read from the random access memory means to an analog audio signal; means for audibly reproducing said analog audio signal; video display means for displaying a waveform of said analog audio signal with a cursor positioned relative to said waveform in correspondence to the image displayed by said monitor means; means for varying the position of said cursor relative to said waveform, while correspondingly changing the displayed image, for enabling selection of a position of said cursor relative to said waveform as an audio edit point; and time code storing means for storing a time code corresponding to said audio edit point.
Claim 8
Dependent Claim
214 words
Apparatus for identifying and selecting edit points in a digital audio signal recorded on a record medium in association with a video signal and a time code signal, the apparatus comprising: random access memory means for storing a reproduced segment of said digital audio signal and the associated time code signal; monitor means for displaying an image corresponding to a reproduced associated video signal; means for reading from said random access memory means, by reference to the stored time code signal, a part of said segment of said digital audio signal which corresponds to the displayed image; digital-to-analog converter means for converting the part of said segment of said digital audio signal read from the random access memory means to an analog audio signal; means for audibly reproducing said analog audio signal; video display means for displaying a waveform of said analog audio signal with a cursor positioned relative to said waveform in correspondence to the image displayed by said monitor means; means for varying the position of said cursor relative to said waveform, while correspondingly changing the displayed image, for enabling selection of a position of said cursor relative to said waveform as an audio edit point; and time code storing means for storing a time code corresponding to said audio edit point.
Claim 9
Dependent Claim
36 words
Apparatus according to claim 6, wherein said video display means is operative to display a time graph in association with said waveform and said cursor, said time graph being based upon the stored time code signal.
Claim 10
Dependent Claim
38 words
Apparatus according to claim 6, wherein said video display means is operative to display time codes in numerical form in association with said waveform and said cursor, the displayed time codes corresponding to the stored time code signal.
Claim 11
Dependent Claim
31 words
Apparatus according to claim 6, wherein the time code storing means comprises an edit controller including an edit point register for storing the time code corresponding to said audio edit point.
Claim 12
Dependent Claim
18 words
Apparatus according to claim 6, wherein said means for reproducing the analog audio signal audibly comprises a loudspeaker.
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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) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |