US4001880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Audio to video translator
Assignee: Individual
•
Filing: 1975-06-23
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Granted: 1977-01-04
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Expires: 1995-06-23
Abstract
Abstract An audio to video translator in which an RF oscillator having a frequency within the commercial television broadcast band is coupled to the antenna terminals of a commercial home television receiver and tuned to the selected channel with no other antenna terminal input. The RF oscillator is modulated with vertical and horizontal sync pulses together with the outputs of a color oscillator which in turn is modulated by incoming audio such as from a standard stereo receiver tape deck or record player. Blanking and unblanking pulses from the output of a video generator also modulate the RF oscillator, the video generator being frequency modulated by outputs from the sync pulse generators and the audio channels.
Inventors
- 👤 Robert P. Delikat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:20
CPC Classifications
H; H04; H04N; H04N11/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
106 words
An audio to video translator comprising: a radio frequency oscillator, said radio frequency oscillator being tunable to at least one predetermined television channel frequency; vertical and horizontal sync pulse generator means coupled to said oscillator for modulation thereof; a video generator having at least first, second and third inputs and an output, said horizontal and vertical sync pulse generator means coupled to said first and second video generator inputs, respectively, and said video generator output coupled to said oscillator for blanking and unblanking modulation thereof; and an audio signal coupled to said third video generator input for varying said blanking and unblanking modulation of said oscillator.
Claim 2
Dependent Claim
106 words
An audio to video translator comprising: a radio frequency oscillator, said radio frequency oscillator being tunable to at least one predetermined television channel frequency; vertical and horizontal sync pulse generator means coupled to said oscillator for modulation thereof; a video generator having at least first, second and third inputs and an output, said horizontal and vertical sync pulse generator means coupled to said first and second video generator inputs, respectively, and said video generator output coupled to said oscillator for blanking and unblanking modulation thereof; and an audio signal coupled to said third video generator input for varying said blanking and unblanking modulation of said oscillator.
Claim 3
Dependent Claim
36 words
The audio to video translator of claim 1 and further including a fourth input to said video generator, said fourth input being coupled to an audio source in stereophonic relationship with said first mentioned audio source.
Claim 4
Dependent Claim
39 words
The audio to video translator of claim 1 and further including: a color oscillator having an output coupled to said radio frequency oscillator for color modulation thereof, said audio signal being coupled to said color oscillator for modulation thereof.
Claim 5
Dependent Claim
36 words
The audio to video translator of claim 3 and further including: a fouth input to said video generator, said fourth input being coupled to an audio source in stereophonic relationship with said first mentioned audio source.
Claim 6
Dependent Claim
134 words
An audio to video translator comprising: a radio frequency oscillator, said radio frequency oscillator being tunable to at least one predetermined television channel frequency; vertical and horizontal sync pulse generator means coupled to said oscillator for modulation thereof; a video generator having at least, first, second and third inputs and an output, said horizontal and vertical sync pulse generator means coupled to said first and second video generator inputs, respectively, and said video generator output coupled to said oscillator for blanking and unblanking modulation thereof; an audio signal coupled to said third video generator input for varying said blanking and unblanking modulation of said oscillator; and a color oscillator having an output coupled to said radio frequency oscillator for color modulation thereof, said audio signal being coupled to said color oscillator for modulation thereof.
Claim 7
Dependent Claim
134 words
An audio to video translator comprising: a radio frequency oscillator, said radio frequency oscillator being tunable to at least one predetermined television channel frequency; vertical and horizontal sync pulse generator means coupled to said oscillator for modulation thereof; a video generator having at least, first, second and third inputs and an output, said horizontal and vertical sync pulse generator means coupled to said first and second video generator inputs, respectively, and said video generator output coupled to said oscillator for blanking and unblanking modulation thereof; an audio signal coupled to said third video generator input for varying said blanking and unblanking modulation of said oscillator; and a color oscillator having an output coupled to said radio frequency oscillator for color modulation thereof, said audio signal being coupled to said color oscillator for modulation thereof.
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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) | 1980-01-04 | 1980-07-05 | 1981-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-04 | 1984-07-05 | 1985-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-04 | 1988-07-05 | 1989-01-04 | $7700.00 | Window Closed / Lapsed |