Patent US5515110A successfully refreshed from Google Patents.
US5515110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Computer generated video wipe effects
Assignee: Adobe Inc
•
Filing: 1995-03-29
•
Granted: 1996-05-07
•
Expires: 2015-03-29
Abstract
Abstract A computer-based video editing system provides software controlled wipes between scenes. These wipes may be the conventional horizontal, vertical, or clock type wipes used in video to transition from one scene to the next. Instead of being generated by conventional digital wave form generators, the wipes are generated as a bit map in computer memory, thus allowing the editor to design his own wipes as desired. The wipes are generated by comparators which have as their inputs line-by-line video data and computer controlled threshold data so as to control a video switcher to select between scenes as determined by the wipe pattern.
Inventors
- 👤 Robert J. Alig
- 👤 Gerald A. Raitzer
- 👤 Michael Shinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:27
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/262; H04N5/265; G; G11; G11B; G11B27/00; G11B27/02; G11B27/031; G11B27/034; H04N5/272; H04N5/275
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
124 words
A method of generating a video wipe effect comprising the steps of: storing a wipe pattern; providing a high threshold level and a low threshold level; comparing the high threshold level to the stored wipe pattern; comparing the low threshold level to the stored wipe pattern; providing a first control signal in response to the comparisons of the wipe pattern and the high and low threshold levels; determining a resulting video signal from a number representing a ratio of a first video signal to a second video signal, as determined by the stored wipe pattern, and providing a second control signal in response thereto; and switching between at least the first and second video signal in response to the first and second control signals.
Claim 2
Independent Claim
124 words
A method of generating a video wipe effect comprising the steps of: storing a wipe pattern; providing a high threshold level and a low threshold level; comparing the high threshold level to the stored wipe pattern; comparing the low threshold level to the stored wipe pattern; providing a first control signal in response to the comparisons of the wipe pattern and the high and low threshold levels; determining a resulting video signal from a number representing a ratio of a first video signal to a second video signal, as determined by the stored wipe pattern, and providing a second control signal in response thereto; and switching between at least the first and second video signal in response to the first and second control signals.
Claim 3
Dependent Claim
21 words
The method of claim 1, further comprising the step of providing the wipe pattern as a portion of one video line.
Claim 4
Dependent Claim
26 words
The method of claim 1, further comprising the step of converting the wipe pattern from a digital to analog signal and then filtering the analog signal.
Claim 5
Dependent Claim
20 words
The method of claim 1, further comprising the step of providing a gain value for controlling the steps of comparing.
Claim 6
Dependent Claim
31 words
The method of claim 1, wherein each of the steps of comparing includes comparing stored horizontal, vertical, and amplitude values of the wipe pattern to corresponding values of the threshold level.
Claim 7
Dependent Claim
37 words
The method of claim 1, further comprising the steps of: providing a memory, wherein the wipe pattern is stored in the memory; and scanning the memory storing the wipe pattern in synchronization with a video reference signal.
Claim 8
Dependent Claim
17 words
The method of claim 1, wherein the step of storing comprises horizontally compressing the stored wipe pattern.
Claim 9
Dependent Claim
15 words
The method of claim 1, wherein the stored wipe pattern is interleaved with additional data.
Claim 10
Dependent Claim
18 words
The method of claim 1, further comprising the step of controlling a time at which the switching occurs.
Claim 11
Dependent Claim
22 words
The method of claim 1, further comprising the step of altering the high and low threshold levels in response to user commands.
Claim 12
Dependent Claim
23 words
The method of claim 1, further comprising the step of generating the high and low threshold levels by values defined by a user.
References Cited (Backward Citations)
US3671667A
Cited
US4028727A
Cited
US4121253A
Cited
US4199790A
Cited
US4477830A
Cited
US4811102A
Cited
US4855834A
Cited
US5138455A
Cited
US5412479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-05-07 | 1999-11-06 | 2000-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-05-07 | 2003-11-06 | 2004-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-05-07 | 2007-11-06 | 2008-05-07 | $7700.00 | Window Closed / Lapsed |