Patent EP0469806A2 successfully refreshed from Google Patents.
EP0469806A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus and methods for recording video signals on magnetic tape
Assignee: Sony Corp
•
Filing: 1991-07-26
•
Granted: —
•
Expires: 2011-07-26
Abstract
Abstract In an apparatus and method for recording at least parts of first and second video signals (S3, S4) on a magnatic tape (TP), at least a part of the first video signal (S3) is recorded in a first portion of an oblique track on the tape (TP), and at least a part of the second video signal (S4) is recorded in a second portion of the track (R) on the tape (TP), the at least part of the second video signal (S4) being recorded in a digital form. <IMAGE> <IMAGE>
Inventors
- 👤 Masatoshi C/O Patents Division Sase
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:04
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/02; H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/928; H04N5/9201; H04N5/9205
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
100 words
An apparatus for recording at least parts of first and second video signals (S₃, S₄) on a magnetic tape (TP), the apparatus comprising: a first recording means (21) for recording at least a part of said first video signal (S₃) in a first portion of an oblique track (R) on said tape (TP); and a second recording means (23) for recording at least a part of said second video signal (S₄) in a second portion of said track (R), said at least part of said second video signal being recorded by said second recording means (23) in a digital form.
Claim 2
Dependent Claim
65 words
Apparatus according to claim 1 wherein said second recording means (21) is operative to record at least a part of a standard television picture as said at least part of said first video signal (S₃), and said second recording means (23) is operative to record at least part of an extended definition television signal as said at least part of said second video signal (S₄).
Claim 3
Dependent Claim
65 words
Apparatus according to claim 2 wherein said first recording means (21) is operative to record at least a part of a standard television picture as said at least part of said first video signal (S₃), and said second recording means (23) is operative to record at least part of an extended definition television signal as said at least part of said second video signal (S₄).
Claim 4
Dependent Claim
60 words
Apparatus according to claim 1 wherein said first recording means (21) is operative to record at least a part of a motion picture video signal in said first portion of said track (R), and said second recording means (23) is operative to record at least a part of a still video picture in said second portion of said track (R).
Claim 5
Dependent Claim
22 words
Apparatus according to claim 1 further comprising a video camera (10) for producing said second video signal (S₄) from an optical image.
Claim 6
Dependent Claim
24 words
Apparatus according to claim 5 further comprising signal converting means (16) for producing said first video signal (S₃) from said second video signal (S₄).
Claim 7
Dependent Claim
51 words
Apparatus according to claim 6 wherein said camera (10) is operative to produce said second video signal (S₄) as a high resolution video signal and said signal converting means (16) is operative to produce said first video signal (S₃) as an interlaced scanning signal from said high resolution video signal (S₄).
Claim 8
Independent Claim
73 words
A method of recording at leats parts of first and second video signals (S₃, S₄) on a magnetic tape (TP), the method comprising the steps of: recording at least a part of the first video signal (S₃) in a first portion of an oblique track (R) on said tape (TP); and recording at least a part of the second video signal (S₄) in digital form in a second portion of said track (R).
Claim 9
Dependent Claim
56 words
A method according to claim 8 wherein the steps of recording at least parts of the first and second video signals (S₃, S₄) comprise recording at least parts of the first and second video signals (S₃, S₄) in respective first and second portions of a plurality of oblique tracks (R) successively formed on said tape (TP).
Claim 10
Dependent Claim
39 words
A method according to claim 8 wherein the step of recording at least part of the first video signal (S₃) comprises recording at least part of an analogue video signal (AV) in said first portion of said track (R).
Claim 11
Dependent Claim
40 words
A method according to claim 10 wherein the step of recording at least part of an analogue video signal (AV) comprises recording at least part of an NTSC analogue video signal (AV) in said first portion of said track (R).
Claim 12
Dependent Claim
43 words
A method according to claim 11 wherein the step of recording at least part of the second video signal (S₄) comprises recording at least part of a high definition digital video still picture signal (PA) in said second portion of said track (R).
Claim 13
Independent Claim
43 words
A method according to clam 8 wherein the step of recording at least part of the second video signal (S₄) comprises recording at least part of a high definition digital video still picture signal (PA) in said second portion of said track (R).
Claim 14
Dependent Claim
21 words
A method according to claim 8 further comprising the step of producing said second video signal (S₄) from an optical image.
Claim 15
Dependent Claim
23 words
A method according to claim 14 further comprising the step of producing said first video signal (S₃) from said second video signal (S₄).
Claim 16
Dependent Claim
52 words
A method according to claim 15 wherein the step of producing said second video signal (S₄) from an optical image comprises forming a high resolution video signal (S₁), and wherein the step of producing said first video signal (S₃) comprises producing an interlaced scanning signal from said high resolution video signal (S₁).
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.