US4603360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable cylinder with plural heads having diverse azimuth angle gap arrangements
Assignee: Canon Inc
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Filing: 1983-09-07
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Granted: 1986-07-29
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Expires: 2003-09-07
Abstract
Abstract In the disclosed video signal recording and reproducing apparatus, a cylinder member arranged to have a tape-shaped recording medium wound thereon, includes five rotating heads. The first head has a specific head width and azimuth angle. The second rotating head is approximately equal in head width to the first rotating head but differs from the first rotating head in azimuth angle. The third rotating head has a narrower head width than the first rotating head but is equal to the first head in azimuth angle. The fourth rotating head is approximately equal in head width to the third rotating head and equal in azimuth angle to the second rotating head and the fifth rotating head is equal in azimuth angle to the third rotating head.
Inventors
- 👤 Makoto Fujiki
- 👤 Masahide Hasegawa
- 👤 Takashi Narasawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:28
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/782; H04N5/7824; H04N5/7826; H04N5/78263; G; G11; G11B; G11B15/00; G11B15/18; G11B15/1808; G11B15/1875; G11B5/00; G11B5/008; G11B5/00813; G11B5/00847; G11B5/0086; G11B5/00878; G11B5/48; G11B5/52; G11B5/53; G11B5/531; G11B5/534; H04N5/783
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
113 words
A video signal recording and reproducing apparatus, comprising: a cylinder member arranged to have a tape-shaped recording medium wound thereon, the cylinder member including: a first rotating head; a second rotating head approximately equal to the first rotating head in head width and differing from the first rotating head in azimuth angle; a third rotating head having a narrower head width than the first rotating head and equal to the first head in azimuth angle; a fourth rotating head approximately equal to the third rotating head in head width and equal to the second rotating head in azimuth angle; and a fifth rotating head equal to the third rotating head in azimuth angle.
Claim 2
Dependent Claim
113 words
A video signal recording and reproducing apparatus, comprising: a cylinder member arranged to have a tape-shaped recording medium wound thereon, the cylinder member including: a first rotating head; a second rotating head approximately equal to the first rotating head in head width and differing from the first rotating head in azimuth angle; a third rotating head having a narrower head width than the first rotating head and equal to the first head in azimuth angle; a fourth rotating head approximately equal to the third rotating head in head width and equal to the second rotating head in azimuth angle; and a fifth rotating head equal to the third rotating head in azimuth angle.
Claim 3
Dependent Claim
25 words
An apparatus according to claim 1, wherein said fifth rotating head is positioned to trace said tape-shaped recording medium alternately with said third rotating head.
Claim 4
Dependent Claim
25 words
An apparatus according to claim 2, wherein said fifth rotating head is positioned to trace said tape-shaped recording medium alternately with said first rotating head.
Claim 5
Dependent Claim
20 words
An apparatus according to claim 3, wherein said fifth rotating head is positioned between said second and fourth rotating heads.
Claim 6
Dependent Claim
32 words
An apparatus according to claim 4, wherein said fifth rotating head has a head width narrower than that of said first rotating head and wider than that of said third rotating head.
Claim 7
Dependent Claim
98 words
A video signal recording and reproducing apparatus, comprising: a cylinder member arranged to have a tape-shaped recording medium wound thereon, the cylinder member including: a first rotating head; a second rotating head approximately equal to said first rotating head in head width; a third rotating head having a narrower head width than the first rotating head; a fourth rotating head equal to said third rotating head in head width; and a fifth rotating head, the head width of which is narrower than that of said first rotating head and is wider than that of said third rotating head.
Claim 8
Dependent Claim
98 words
A video signal recording and reproducing apparatus, comprising: a cylinder member arranged to have a tape-shaped recording medium wound thereon, the cylinder member including: a first rotating head; a second rotating head approximately equal to said first rotating head in head width; a third rotating head having a narrower head width than the first rotating head; a fourth rotating head equal to said third rotating head in head width; and a fifth rotating head, the head width of which is narrower than that of said first rotating head and is wider than that of said third rotating head.
Claim 9
Dependent Claim
28 words
An apparatus according to claim 6, wherein said fifth rotating head is positioned to be able to trace said tape-shaped recording medium alternately with said third rotating head.
Claim 10
Dependent Claim
28 words
An apparatus according to claim 7, wherein said fifth rotating head is positioned to be able to trace said tape-shaped recording medium alternately with said first rotating head.
Claim 11
Dependent Claim
36 words
An apparatus according to claim 8, wherein, on said cylinder member, said first and third rotating heads are disposed adjacently to each other while said second, fourth and fifth rotating heads are disposed adjacent one another.
Claim 12
Dependent Claim
134 words
A video signal recording and reproducing apparatus, comprising: a cylinder member arranged to have a tape-shaped recording medium wound thereon, the cylinder member including: a first rotating head, a second rotating head approximately equal to said first rotating head in head width and differing from the first rotating head in azimuth angle, a third rotating head equal to said first rotating head in azimuth angle and differing from said first rotating head in head width, a fourth rotating head equal to said second rotating head in azimuth angle and approximately equal to said third rotating head in head width, and a fifth rotating head; a first selection means for selecting one of said first and third rotating heads; and a second selection means for selecting one of said second, fourth and fifth rotating heads.
Claim 13
Dependent Claim
134 words
A video signal recording and reproducing apparatus, comprising: a cylinder member arranged to have a tape-shaped recording medium wound thereon, the cylinder member including: a first rotating head, a second rotating head approximately equal to said first rotating head in head width and differing from the first rotating head in azimuth angle, a third rotating head equal to said first rotating head in azimuth angle and differing from said first rotating head in head width, a fourth rotating head equal to said second rotating head in azimuth angle and approximately equal to said third rotating head in head width, and a fifth rotating head; a first selection means for selecting one of said first and third rotating heads; and a second selection means for selecting one of said second, fourth and fifth rotating heads.
Claim 14
Dependent Claim
26 words
An apparatus according to claim 10, wherein said first selection means selects said first rotating head when said second selection means selects said second rotating head.
Claim 15
Dependent Claim
26 words
An apparatus according to claim 10, wherein said first selection means selects said third rotating head when said second selection means selects said fourth rotating head.
References Cited (Backward Citations)
US4486792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |