US4811095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for displaying multiplexed analog components on a conventional TV monitor
Assignee: Rohde and Schwarz GmbH and Co KG
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Filing: 1988-02-01
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Granted: 1989-03-07
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Expires: 2008-02-01
Abstract
Abstract For the synchronized display of MAC signals on a monitor designed to display standard video signals, a decoding device derives synchronizing pulses from the data component of the MAC signal which contains the line-frequency and field-frequency information, and a blanking stage is triggered by the synchronizing pulses for the periodic blanking of a partial segment of the MAC signal to a predetermined constant voltage level in a standard-suitable temporal relationship to the synchronizing pulses.
Inventors
- 👤 Hartwig Harm
- 👤 Harald Ibl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:36
CPC Classifications
H; H04; H04N; H04N17/00; H04N17/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
92 words
An arrangement for the synchronized display of MAC signals on a monitor which is designed to display standard video signals, comprising a decoding device (15) for deriving synchronizing pulses (25) from the data component (6) of the MAC signal containing the line- and field frequency information, a blanking stage (17, 18) receiving the output of said decoding device and triggered by the synchronizing pulses and periodically blanking a partial segment (6a) of the MAC signal (14) to a predetermined constant voltage level (29) in standard-suitable timing relationship to the synchronizing pulses (25).
Claim 2
Dependent Claim
92 words
An arrangement for the synchronized display of MAC signals on a monitor which is designed to display standard video signals, comprising a decoding device (15) for deriving synchronizing pulses (25) from the data component (6) of the MAC signal containing the line- and field frequency information, a blanking stage (17, 18) receiving the output of said decoding device and triggered by the synchronizing pulses and periodically blanking a partial segment (6a) of the MAC signal (14) to a predetermined constant voltage level (29) in standard-suitable timing relationship to the synchronizing pulses (25).
Claim 3
Dependent Claim
23 words
An arrangement according to claim 1, wherein the partial segment (6a) is blanked to the black level (19) of the MAC signal (14).
Claim 4
Dependent Claim
24 words
An arrangement according to claim 2, wherein the black level is derived from the MAC signal (14) by means of the decoding device (15).
Claim 5
Dependent Claim
53 words
An arrangement according to claim 1 or claim 2, wherein the black level-determined timing of the MAC signal (14) is determined by means of the decoding device (15) and the black level of the MAC signal is clamped to a predetermined constant level (0 volts) by means of an additional clamping circuit (32).
Claim 6
Dependent Claim
33 words
An arrangement according to claims 1 or 2 or 3 wherein the derived synchronizing pulses are added to the MAC signal (14) in an adding stage (27) during the blanked partial segment (6a).
Claim 7
Dependent Claim
21 words
An arrangement according to claims 1 or 2 or 3 wherein a delay circuit (22) time displaces the derived synchronizing pulses.
Claim 8
Dependent Claim
72 words
An arrangement according to claims 1 or 2 or 3 including a switch (28) for connecting the signal input (13) directly to the picture signal input (11) of the monitor (10), said switch (28) controlled by a MAC signal recognition sensor circuit (30), so that the MAC signal which is blanked to a constant level is supplied to the monitor only when a MAC signal is actually present at the input (13).
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) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |