US4463389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for recording and playing back continuous-play and stop-motion signals
Assignee: Discovision Associates
•
Filing: 1980-10-31
•
Granted: 1984-07-31
•
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 08:44
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.
References Cited (Backward Citations)
US3878560A
Cited
US3789137A
Cited
US3909512A
Cited
US3924062A
Cited
US4075665A
Cited
US4065794A
Cited
US4065795A
Cited
US4141039A
Cited
US4138694A
Cited
US4030129A
Cited
DE2849791A1
Cited
US4227213A
Cited
JPS54122922A
Cited
JPS54137219A
Cited
US4353090A
Cited
US4347527A
Cited
US4317131A
Cited
US4321622A
Cited
US4420828A
Cited
US4383279A
Cited
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 |