US4675737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superimposing apparatus
Assignee: Mitsumi Electric Co Ltd
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Filing: 1985-12-17
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Granted: 1987-06-23
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Expires: 2005-12-17
Abstract
Abstract A superimposing apparatus comprises an obtaining circuit for obtaining a first positional information from a video signal including the first positional information, a comparing circuit for comparing a second positional information read out from a storage medium with the first positional information obtained in the obtaining circuit, a varying circuit for varying a read-out position on the storage medium according to a compared result in the comparing circuit so that the second positional information coincides with the first positional information, a character signal generating circuit for generating a character signal by reading out from the storage medium a character information corresponding to the second positional information when the first positional information and the second positional information coincide, and a mixed signal generating circuit for generating a mixed signal for a superimposed display by mixing to the video signal the character signal generated from the character signal generating circuit.
Inventors
- 👤 Takuo Fujino
- 👤 Noboru Sugie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:43
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/262; H04N5/278
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
144 words
A superimposing apparatus comprising: obtaining means for obtaining a first positional information from a video signal including the first positional information; comparing means for comparing a second positioal information read out from a storage medium with the first positional information obtained in said obtaining means; varying means for varying a read-out position on the storage medium according to a compared result in said comparing means so that the second positional information coincides with the first positional information; character signal generating means for generating a character signal for reading out from the storage medium a character information corresponding to the second positional information when the first positional information and the second positional information coincide; and a mixed signal generating means for generating a mixed signal for a superimposed display by mixing to the video signal the character signal generated from said character signal generating means.
Claim 2
Dependent Claim
144 words
A superimposing apparatus comprising: obtaining means for obtaining a first positional information from a video signal including the first positional information; comparing means for comparing a second positioal information read out from a storage medium with the first positional information obtained in said obtaining means; varying means for varying a read-out position on the storage medium according to a compared result in said comparing means so that the second positional information coincides with the first positional information; character signal generating means for generating a character signal for reading out from the storage medium a character information corresponding to the second positional information when the first positional information and the second positional information coincide; and a mixed signal generating means for generating a mixed signal for a superimposed display by mixing to the video signal the character signal generated from said character signal generating means.
Claim 3
Dependent Claim
28 words
A superimposing apparatus as claimed in claim 1 in which said storage medium is interchangeable with another storage medium recorded with different second positional information and character information.
Claim 4
Dependent Claim
51 words
A superimposing apparatus as claimed in claim 1 in which said first positional information is recorded at a predetermined position in a vertical synchronizing signal of the video signal, said obtaining means obtaining said first positional information by using as a reference a vertical synchronizing signal separated from the video signal.
Claim 5
Dependent Claim
38 words
A superimposing apparatus as claimed in claim 1 in which said obtaining means subjects the first positional information which is obtained serially to a serial-to-parallel conversion and supplies the first positional information to said comparing means in parallel.
Claim 6
Dependent Claim
20 words
A superimposing apparatus as claimed in claim 1 in which said video signal is reproduced from a rotary recording medium.
Claim 7
Dependent Claim
45 words
A superimposing apparatus as claimed in claim 1 in which said character signal generating means supplies to said mixed signal generating means a character signal which is generated when the first positional information and the second positional information coincide continuously for a predetermined time period.
Claim 8
Dependent Claim
31 words
A superimposing apparatus as claimed in claim 1 in which said storage medium is recorded with a character information and a display time information in correspondence with the second positional information.
Claim 9
Dependent Claim
48 words
A superimposing apparatus as claimed in claim 7 in which said character signal generating means supplies the generated character signal to said mixed signal generating means only for a time period instructed by said display time information after the first positional information coincides with the second positional information.
Claim 10
Dependent Claim
61 words
A superimposing apparatus as claimed in claim 1 in which said character signal generating means comprises instructing means for instructing a position on a picture where a superimposed display is to be carried out, the generated character signal being supplied to said mixed signal generating means only during a time period in which an instruction is made by said instructing means.
Claim 11
Dependent Claim
23 words
A superimposing apparatus as claimed in claim 1 in which said mixed signal generating means time-division-multiplexes said video signal and said character 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) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |