Patent US4463389A successfully refreshed from Google Patents.
US4463389A
Expired / Lapsed
US
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System for recording and playing back continuous-play and stop-motion signals
Assignee: Discovision Associates
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Filing: 1980-10-31
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Granted: 1984-07-31
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Expires: 2000-10-31
Abstract
Abstract An improved method and apparatus for recording and playing back a video signal on a video disc, such that selected video frames can be played back in a stop-motion fashion, with accompanying audio. Each stop-motion video frame is recorded on a single recording track on the disc, and an associated digitized stop-motion audio signal is combined with a continuous-play video signal and recorded on a plurality of preceding tracks. During playback, the tracks recording the continuous-play video signal are first scanned, to recover and display the continuous-play video frames, and to recover and enter into a memory the digitized stop-motion audio signal. The track recording the corresponding stop-motion video signal is then scanned, in a repeated fashion, to provide a stop-motion display of the video frame, while the stop-motion audio signal is extracted from the memory and converted back to its original analog format, for playback along with the stop-motion video frame.
Inventors
- 👤 Scott M. Golding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:13
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/93; G; G11; G11B; G11B20/00; G11B20/10; G11B20/10527; G11B20/00007; H04N5/915; H04N5/9155; H04N5/92; H04N5/926; H04N9/00; H04N9/79; H04N9/80; H04N9/802
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
135 words
A method of playing back a signal recorded on a record medium, a first portion of the medium containing a recorded composite signal that includes a continuous-play video signal and a stop-motion audio signal, and a second portion of the medium containing a recorded stop-motion video signal, the method comprising steps of: recovering the composite signal from the first portion of the record medium; separating the continuous-play video signal from the recovered composite signal, and displaying the separated video signal on a video monitor; separating the stop-motion audio signal from the recovered composite signal, and storing the separated audio signal in a memory; and recovering the stop-motion video signal from the second portion of the record medium, and displaying it in a repeated fashion on the monitor, while simultaneously playing back the stored audio signal.
Claim 2
Independent Claim
135 words
A method of playing back a signal recorded on a record medium, a first portion of the medium containing a recorded composite signal that includes a continuous-play video signal and a stop-motion audio signal, and a second portion of the medium containing a recorded stop-motion video signal, the method comprising steps of: recovering the composite signal from the first portion of the record medium; separating the continuous-play video signal from the recovered composite signal, and displaying the separated video signal on a video monitor; separating the stop-motion audio signal from the recovered composite signal, and storing the separated audio signal in a memory; and recovering the stop-motion video signal from the second portion of the record medium, and displaying it in a repeated fashion on the monitor, while simultaneously playing back the stored audio signal.
Claim 3
Dependent Claim
50 words
A method as defined in claim 1, wherein: the stop-motion audio signal recorded on the record medium is a digital signal; and the method further includes a step of converting the separated audio signal to a corresponding analog signal, for playback simultaneous with the display of the stop-motion video signal.
Claim 4
Dependent Claim
74 words
A method as defined in claim 2, wherein: the digital stop-motion audio signal recorded on the record medium is compressed in time; and the step of separating and storing includes steps of entering the digital stop-motion audio signal into a memory at a first, relatively high rate, and extracting the digital stop-motion audio signal from the memory at a second, relatively low rate, whereby the audio signal is returned to its normal play speed.
Claim 5
Dependent Claim
43 words
A method as defined in claim 1, wherein: a plurality of composite signals and a corresponding plurality of stop-motion video signals are recorded on the record medium; and the recited method steps are repeated for each pair of composite and stop-motion video signals.
Claim 6
Dependent Claim
141 words
Apparatus for playing back a signal recorded on a record medium, a first portion of the medium containing a recorded composite signal that includes a continuous-play video signal and a stop-motion audio signal, and a second portion of the medium containing a recorded stop-motion video signal, the apparatus comprising: means for recovering the composite signal from the first portion of the record medium; means for separating the continuous-play video signal from the recovered composite signal, and for displaying the separated video signal on a video monitor; means for separating the stop-motion audio signal from the recovered composite signal; memory means for storing the separated audio signal; means for recovering the stop-motion video signal from the second portion of the record medium, and for displaying it in a repeated fashion on the video monitor, while simultaneously playing back the stored audio signal.
Claim 7
Dependent Claim
141 words
Apparatus for playing back a signal recorded on a record medium, a first portion of the medium containing a recorded composite signal that includes a continuous-play video signal and a stop-motion audio signal, and a second portion of the medium containing a recorded stop-motion video signal, the apparatus comprising: means for recovering the composite signal from the first portion of the record medium; means for separating the continuous-play video signal from the recovered composite signal, and for displaying the separated video signal on a video monitor; means for separating the stop-motion audio signal from the recovered composite signal; memory means for storing the separated audio signal; means for recovering the stop-motion video signal from the second portion of the record medium, and for displaying it in a repeated fashion on the video monitor, while simultaneously playing back the stored audio signal.
Claim 8
Dependent Claim
49 words
Apparatus as defined in claim 5, wherein: the stop-motion audio signal recorded on the record medium is a digital signal; and the apparatus further includes means for converting the separated audio signal to a corresponding analog signal, for playing back simultaneous with the display of the stop-motion video signal.
Claim 9
Dependent Claim
71 words
Apparatus as defined in claim 6, wherein: the digital stop-motion audio signal recorded on the record medium is compressed in time; and the apparatus further includes means for entering the digital audio signal into the memory at a first, relatively high rate, and means for extracting the digital stop-motion audio signal from the memory at a second, relatively low rate, whereby the audio signal is returned to its normal play speed.
Claim 10
Dependent Claim
203 words
Apparatus for playing back a signal recorded on a record medium, a first portion of the medium containing a recorded composite signal that includes a continuous-play video signal and a time-compressed, digital stop-motion audio signal, and a second portion of the medium containing a recorded stop-motion video signal, the apparatus comprising: means for recovering the composite signal from the first portion of the record medium; means for separating the continuous-play video signal from the recovered composite signal, and for displaying the separated video signal on a video monitor; means for separating the time-compressed, digital audio signal from the recovered composite signal; memory means; means for entering the time-compressed, digital audio signal into the memory means at a first, relatively high rate; means for extracting the digital audio signal from the memory means at a second, relatively low rate, whereby the audio signal is returned to its normal play speed; means for converting the digital audio signal extracted from the memory means to a corresponding analog audio signal; and means for recovering the stop-motion video signal from the second portion of the record medium, and for displaying it in a repeated fashion on the video monitor while simultaneously playing back the analog audio signal.
Claim 11
Dependent Claim
203 words
Apparatus for playing back a signal recorded on a record medium, a first portion of the medium containing a recorded composite signal that includes a continuous-play video signal and a time-compressed, digital stop-motion audio signal, and a second portion of the medium containing a recorded stop-motion video signal, the apparatus comprising: means for recovering the composite signal from the first portion of the record medium; means for separating the continuous-play video signal from the recovered composite signal, and for displaying the separated video signal on a video monitor; means for separating the time-compressed, digital audio signal from the recovered composite signal; memory means; means for entering the time-compressed, digital audio signal into the memory means at a first, relatively high rate; means for extracting the digital audio signal from the memory means at a second, relatively low rate, whereby the audio signal is returned to its normal play speed; means for converting the digital audio signal extracted from the memory means to a corresponding analog audio signal; and means for recovering the stop-motion video signal from the second portion of the record medium, and for displaying it in a repeated fashion on the video monitor while simultaneously playing back the analog audio signal.
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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) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |