US4573087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording apparatus
Assignee: Canon Inc
•
Filing: 1984-12-06
•
Granted: 1986-02-25
•
Expires: 2004-12-06
Abstract
Abstract In the disclosed recording apparatus an arrangement moves a recording head relative to a record bearing medium, a detector detects when the recording head is in a substantially stabilized position, and a facility responds to the output of the detector to produce an output signal that enables the recording. This assures initiation of a recording operation when the head is in a stable condition.
Inventors
- 👤 Nobuo Tezuka
- 👤 Tokihiko Ogura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:53
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/20; G11B15/00; G11B15/18; G11B15/1808; G11B19/02; G11B19/14; G11B33/00; G11B33/02; G11B33/08; Y; Y10; Y10S; Y10S358/00; Y10S358/906
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
88 words
A recording apparatus comprising: (A) signal recording means including a movable recording head which is movable relative to a record bearing medium; (B) moving means for intermittently moving said head relative to the medium; (C) detecting means for detecting that said head has reached a predetermined substantially stable state at a position to which it has moved; and (D) enabling means responsive to said detecting means for enabling said recording means to record a signal on the medium when said head has reached said predetermined substantially stable state.
Claim 2
Dependent Claim
88 words
A recording apparatus comprising: (A) signal recording means including a movable recording head which is movable relative to a record bearing medium; (B) moving means for intermittently moving said head relative to the medium; (C) detecting means for detecting that said head has reached a predetermined substantially stable state at a position to which it has moved; and (D) enabling means responsive to said detecting means for enabling said recording means to record a signal on the medium when said head has reached said predetermined substantially stable state.
Claim 3
Dependent Claim
44 words
The apparatus according to claim 1, further comprising: trigger means for producing a recording trigger signal; said enabling means including a logic gate circuit for supplying said trigger signal to said recording means only when said head has reached said predetermined substantially stable state.
Claim 4
Dependent Claim
33 words
The apparatus according to claim 1, wherein said moving means includes: a movable head carrier for carrying said head; a cam for moving said carrier; and a drive member for driving said cam.
Claim 5
Dependent Claim
53 words
The apparatus according to claim 3, wherein said detecting means includes: a sensor for sensing the movement of said head carrier and for producing a corresponding output signal; and a detecting circuit for detecting, on the basis of the output signal of said sensor, that said head reached said predetermined substantially stable state.
Claim 6
Dependent Claim
14 words
The apparatus according to claim 4, wherein said sensor is of a magnetic type.
Claim 7
Dependent Claim
14 words
The apparatus according to claim 4, wherein said sensor is of a photo-electric type.
Claim 8
Dependent Claim
110 words
A recording apparatus using a rotary type record bearing medium, comprising: (A) recording means including a movable recording head for recording signals at different positions on the medium; (B) rotating means for rotating the medium relative to said recording head; (C) moving means for intermittently moving said recording head relative to the medium; (D) trigger means for triggering said recording means; (E) detecting means for detecting that said recording head reached a predetermined substantially stable state at each position to which it is moved; and (F) control means responsive to said detecting means for enabling said trigger means only when said recording head has reached said predetermined substantially stable state.
Claim 9
Dependent Claim
110 words
A recording apparatus using a rotary type record bearing medium, comprising: (A) recording means including a movable recording head for recording signals at different positions on the medium; (B) rotating means for rotating the medium relative to said recording head; (C) moving means for intermittently moving said recording head relative to the medium; (D) trigger means for triggering said recording means; (E) detecting means for detecting that said recording head reached a predetermined substantially stable state at each position to which it is moved; and (F) control means responsive to said detecting means for enabling said trigger means only when said recording head has reached said predetermined substantially stable state.
Claim 10
Dependent Claim
33 words
The apparatus according to claim 7, wherein said moving means includes: a movable head carrier for carrying said head; a cam for moving said carrier; and a drive member for driving said cam.
Claim 11
Dependent Claim
54 words
The apparatus according to claim 8, wherein said detecting means includes: a sensor for sensing the movement of said head carrier and for producing a corresponding output signal; and a detecting circuit for detecting, on the basis of the output signal of said sensor, that said head has reached said predetermined substantially stable state.
Claim 12
Dependent Claim
14 words
The apparatus according to claim 9, wherein said sensor is of a magnetic type.
Claim 13
Dependent Claim
14 words
The apparatus according to claim 9, wherein said sensor is of a photo-electric type.
Claim 14
Dependent Claim
120 words
A magnetic video recording apparatus using a rotary type magnetic sheet, comprising: (A) a magnetic recording head; (B) a movable head carrier for carrying said head; (C) a moving mechanism for intermittently moving said head carrier so that the recording position of said head on the sheet is changed; (D) a rotation drive member for rotating the sheet relative to said head; (E) a recording circuit for supplying a predetermined amount of a video signal to said head; (F) detecting means for detecting that said head carrier has reached a predetermined substantially stable state; and (G) control means responsive to said detecting means for enabling said recording circuit only when said head carrier has reached said predetermined substantially stable state.
Claim 15
Dependent Claim
120 words
A magnetic video recording apparatus using a rotary type magnetic sheet, comprising: (A) a magnetic recording head; (B) a movable head carrier for carrying said head; (C) a moving mechanism for intermittently moving said head carrier so that the recording position of said head on the sheet is changed; (D) a rotation drive member for rotating the sheet relative to said head; (E) a recording circuit for supplying a predetermined amount of a video signal to said head; (F) detecting means for detecting that said head carrier has reached a predetermined substantially stable state; and (G) control means responsive to said detecting means for enabling said recording circuit only when said head carrier has reached said predetermined substantially stable state.
Claim 16
Dependent Claim
37 words
The apparatus according to claim 12, further comprising: a trigger circuit for triggering said recording circuit; said control means being arranged to enable said trigger circuit only when said head carrier has reached said predetermined stable state.
Claim 17
Dependent Claim
54 words
The apparatus according to claim 12, wherein said detecting means includes: a sensor for sensing the movement of said head carrier and for producing a corresponding output signal; and a detecting circuit for detecting on the basis of the output signal of said sensor that said head has reached said predetermined substantially stable state.
Claim 18
Dependent Claim
14 words
The apparatus according to claim 14, wherein said sensor is of a magnetic type.
Claim 19
Dependent Claim
14 words
The apparatus according to claim 14, wherein said sensor is of a photo-electric type.
Claim 20
Dependent Claim
27 words
The apparatus according to claim 12, wherein said moving mechanism includes a cam for moving said head carrier and a driving member for intermittently drive the cam.
References Cited (Backward Citations)
US3492669A
Cited
US4198666A
Cited
US4131919A
Cited
DE2916387A1
Cited
US4386376A
Cited
US4400743A
Cited
US4396955A
Cited
US4458273A
Cited
US4481550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |