US4847709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reproducing apparatus
Assignee: Canon Inc
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Filing: 1986-10-28
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Granted: 1989-07-11
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Expires: 2006-10-28
Abstract
Abstract In the disclosed reproducing apparatus a detector detects that a reproducing head is properly positioned relative to selected one of recording tracks on the recording medium and a control responsive to the detecting means enables an output arrangement to put out an information signal reproduced by the head when the detector detects that the head is properly positioned relative to the selected track. This allows a display device to display the reproduced information when the head is properly positioned relative to the selected track.
Inventors
- 👤 Tsukasa Uehara
- 👤 Tsuguhide Sakata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:58
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/10; G11B19/00; G11B19/02; G11B19/04; G11B21/00; G11B21/02; G11B21/08; G11B21/081; G11B27/00; G11B27/10; G11B27/34; G11B27/36; G11B2220/00; G11B2220/20
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
169 words
An apparatus for reproducing information from recording tracks of an information signal recording medium, comprising: (A) head means positionable for reproducing an information signal from a selected one of the recording tracks of said recording medium; (B) output means for supplying the information signals reproduced by said head means; (C) detecting means for detecting whether said head means is positioned properly relative to said selected track of the recording medium, said detecting means producing a characteristic indication when detecting that the head means is positioned properly relative to said selected track; (D) control means for enabling said output means to supply the information signal reproduced by said head means in response to said characteristic indication produced by said detecting means; and (E) memory means for memorizing a predetermined image information signal which represents a predetermined image and is produced otherwise than from said recording medium, said memory means supplying said image information signal when said information signal reproduced by said head means is not supplied by said output means.
Claim 2
Independent Claim
169 words
An apparatus for reproducing information from recording tracks of an information signal recording medium, comprising: (A) head means positionable for reproducing an information signal from a selected one of the recording tracks of said recording medium; (B) output means for supplying the information signals reproduced by said head means; (C) detecting means for detecting whether said head means is positioned properly relative to said selected track of the recording medium, said detecting means producing a characteristic indication when detecting that the head means is positioned properly relative to said selected track; (D) control means for enabling said output means to supply the information signal reproduced by said head means in response to said characteristic indication produced by said detecting means; and (E) memory means for memorizing a predetermined image information signal which represents a predetermined image and is produced otherwise than from said recording medium, said memory means supplying said image information signal when said information signal reproduced by said head means is not supplied by said output means.
Claim 3
Dependent Claim
63 words
The apparatus according to claim 1, wherein said detecting means includes circuit means for detecting, on the basis of the information signal reproduced through said head means, whether the head means is properly positioned relative to said selected track, said circuit means being arranged for producing said characteristic indication when detecting that the head means is properly positioned relative to the selected track.
Claim 4
Dependent Claim
32 words
The apparatus according to claim 2, further comprising: positioning means for positioning said head means relative to said selected track on the basis of the information signal reproduced through the head means.
Claim 5
Independent Claim
205 words
An apparatus for reproducing information signals from circular recording tracks of a rotary type information signal recording medium, comprising: (A) rotating means for rotating said recording medium about an axis; (B) head means positionable for reproducing an information signal from a recording track of said recording medium; (C) positioning means for positioning said head means relative to a selected one of the recording tracks of said recording medium; (D) output means for supplying the information signal reproduced through said head means; (E) detecting means for detecting whether said head means is positioned properly relative to said selected track of the recording medium, said detecting means producing a characteristic indication when detecting that the head means is positioned properly relative to said selected track; (F) memory means for memorizing a predetermined image information which represents at least one field image; (G) selection means for selectively feeding a signal, which has been reproduced by said head means and fed, without passing through said memorizing means, or a signal, which has been reproduced by said head means and memorized by said memorizing means, to a monitor; and (H) control means for controlling a selection state of said selection means, in accordance with an output of said detection means.
Claim 6
Independent Claim
205 words
An apparatus for reproducing information signals from circular recording tracks of a rotary type information signal recording medium, comprising: (A) rotating means for rotating said recording medium about an axis; (B) head means positionable for reproducing an information signal from a recording track of said recording medium; (C) positioning means for positioning said head means relative to a selected one of the recording tracks of said recording medium; (D) output means for supplying the information signal reproduced through said head means; (E) detecting means for detecting whether said head means is positioned properly relative to said selected track of the recording medium, said detecting means producing a characteristic indication when detecting that the head means is positioned properly relative to said selected track; (F) memory means for memorizing a predetermined image information which represents at least one field image; (G) selection means for selectively feeding a signal, which has been reproduced by said head means and fed, without passing through said memorizing means, or a signal, which has been reproduced by said head means and memorized by said memorizing means, to a monitor; and (H) control means for controlling a selection state of said selection means, in accordance with an output of said detection means.
Claim 7
Dependent Claim
29 words
The apparatus according to claim 4, further comprising: display means for displaying information in response to an output of said output means or an output of said memory means.
Claim 8
Dependent Claim
60 words
The apparatus according to claim 4, wherein said detecting means includes circuit means for detecting, on the basis of the information signal reproduced through said head means, whether the head means is properly positioned relative to said selected track, said circuit means producing said characteristic indication when detecting that the head means is properly positioned relative to the selected track.
Claim 9
Dependent Claim
37 words
The apparatus according to claim 6, wherein said positioning means includes means for adjusting the position of said head means relative to said selected track on the basis of the information signal reproduced through the head means.
Claim 10
Dependent Claim
29 words
The apparatus according to claim 4, further comprising: display means for displaying information in response to an output of said output means or an output of said memory means.
Claim 11
Independent Claim
214 words
An apparatus for reproducing frequency modulated signals from recording tracks of a recording medium, comprising: (A) head means positionable for reproducing a frequency modulated signal from a selected one of the recording tracks of said recording medium; (B) signal processing means for processing the frequency modulated signal reproduced by said head means to produce a frequency demodulated signal; (C) output means for supplying the frequency demodulated signal produced by said signal processing means; (D) detecting means for detecting, on the basis of an envelope value of the frequency modulated signal reproduced by said head means, whether said head means is properly positioned relative to said selected track of the recording medium, said detecting means producing a characteristic indication when detecting that the head means is properly positioned relative to said selected track; (E) memory means for memorizing a predetermined image information which represents at lease one field image (F) selection means for selectively feeding a signal, which has been reproduced by said head means and fed, without passing through said memorizing means, or a signal, which has been reproduced by said head means and memorized by said memorizing means, to a monitor; and (G) control means for controlling a selection state of said selection means, in accordance with an output of said detection means.
Claim 12
Independent Claim
214 words
An apparatus for reproducing frequency modulated signals from recording tracks of a recording medium, comprising: (A) head means positionable for reproducing a frequency modulated signal from a selected one of the recording tracks of said recording medium; (B) signal processing means for processing the frequency modulated signal reproduced by said head means to produce a frequency demodulated signal; (C) output means for supplying the frequency demodulated signal produced by said signal processing means; (D) detecting means for detecting, on the basis of an envelope value of the frequency modulated signal reproduced by said head means, whether said head means is properly positioned relative to said selected track of the recording medium, said detecting means producing a characteristic indication when detecting that the head means is properly positioned relative to said selected track; (E) memory means for memorizing a predetermined image information which represents at lease one field image (F) selection means for selectively feeding a signal, which has been reproduced by said head means and fed, without passing through said memorizing means, or a signal, which has been reproduced by said head means and memorized by said memorizing means, to a monitor; and (G) control means for controlling a selection state of said selection means, in accordance with an output of said detection means.
Claim 13
Dependent Claim
70 words
The apparatus according to claim 1 or 4 or 9, wherein said detecting means includes; an envelope value detecting circuit for detecting the envelope value of the frequency modulated signal reproduced through said head means; and a comparison circuit for comparing said detected envelope value with a predetermined reference value, said comparison circuit being arranged to producing said characteristic indication when the detected envelope value is above said reference value.
Claim 14
Dependent Claim
20 words
The apparatus according to claim 10, further comprising: positioning means for positioning said head means relative to said selected track.
Claim 15
Dependent Claim
51 words
The apparatus according to claim 11, wherein said positioning means includes, means for adjusting, on the basis of the envelope value detected by said envelope value detecting circuit in said detecting means, the position of said head means so that the head means is properly positioned relative to said selected track.
Claim 16
Dependent Claim
24 words
The apparatus according to claim 1 or 4 or 9, further comprising: positioning means for positioning said head means relative to said selected track.
Claim 17
Dependent Claim
50 words
The apparatus according to claim 13, wherein said positioning means includes means for adjusting, on the basis of the envelope value of the frequency modulated signal reproduced through said head means, the position of the head means so that the head means is properly positioned relative to said selected track.
Claim 18
Dependent Claim
29 words
The apparatus according to claim 9, further comprising: display means for displaying information in response to an output of said output means or an output of said memory means.
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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) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |