Patent US3753304A successfully refreshed from Google Patents.
Patent US3857764A successfully refreshed from Google Patents.
Patent US4172152A successfully refreshed from Google Patents.
EP0307130A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Position control method for movable member and apparatus therefor
Assignee: Canon Inc
•
Filing: 1988-08-31
•
Granted: —
•
Expires: 2008-08-31
Abstract
Abstract A position control method for a movable member, comprises steps of, generating sinusoidal position signals (A PHASE, B PHASE) of mutually different phases corresponding to the position of the movable member, generating sinusoidal command position signals (COS DATA, SIN DATA) of mutually different phases corresponding to the command position of the movable member, processing (at 104 to 106) the position signals and the command position signals, and moving the movable member (by motor 108) to the command position according to a signal obtained by the processing is disclosed.
Inventors
- 👤 Baba Hisatoshi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 16:23
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/08; G11B7/085; G11B7/0857; G11B7/08582; G11B7/08588; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/33; G05B19/35; G05B19/351; G11B7/08505; G11B7/08517; G11B7/09; G11B7/0946; G05B2219/00; G05B2219/30; G05B2219/34; G05B2219/34076; G05B2219/49; G05B2219/49177
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
71 words
A position control method for a movable member, comprising steps of: generating sinusoidal position signals of mutually different phases corresponding to the position of said movable member; generating sinusoidal command position signals of mutually different phases corresponding to the command position of said movable member; processing said position signals and said command position signals; and moving said movable member to the command position according to a signal obtained by said processing.
Claim 2
Dependent Claim
71 words
A position control method for a movable member, comprising steps of: generating sinusoidal position signals of mutually different phases corresponding to the position of said movable member; generating sinusoidal command position signals of mutually different phases corresponding to the command position of said movable member; processing said position signals and said command position signals; and moving said movable member to the command position according to a signal obtained by said processing.
Claim 3
Dependent Claim
111 words
A position control apparatus for a movable member, comprising: moving means for moving said movable member; position detection means for detecting the position of said movable member and generating sinusoidal position signals of mutually different phases in response to the position of the movable member; position command means for said movable memeber, for generating sinusoidal command position signals of mutually different phases in response to the command position of the movable member; process means for processing said position signals and said command position signals and releasing a thus obtained process signal; and control means for controlling the function of said moving means, utilizing thus generated process signal as a control signal.
Claim 4
Dependent Claim
111 words
A position control apparatus for a movable member, comprising: moving means for moving said movable member; position detection means for detecting the position of said movable member and generating sinusoidal position signals of mutually different phases in response to the position of the movable member; position command means for said movable memeber, for generating sinusoidal command position signals of mutually different phases in response to the command position of the movable member; process means for processing said position signals and said command position signals and releasing a thus obtained process signal; and control means for controlling the function of said moving means, utilizing thus generated process signal as a control signal.
Claim 5
Dependent Claim
129 words
A position control apparatus for a movable member, comprising: a first movable member; a second movable member movably supporting said first movable member; first moving means for moving said first movable member; displacement detecting means for detecting the relative displacement of said first and second movable members; a support member movably supporting said second movable member; second moving means for moving said second movable member; position detecting means for detecting the relative position of said second movable member and said support member, said position detecting means being composed of a photoelectric encoder; and control means for processing signals from said displacement detecting means and from said position detecting means, and controlling the function of said second moving means, utilizing a signal obtained by said processing as a control signal.
Claim 6
Dependent Claim
129 words
A position control apparatus for a movable member, comprising: a first movable member; a second movable member movably supporting said first movable member; first moving means for moving said first movable member; displacement detecting means for detecting the relative displacement of said first and second movable members; a support member movably supporting said second movable member; second moving means for moving said second movable member; position detecting means for detecting the relative position of said second movable member and said support member, said position detecting means being composed of a photoelectric encoder; and control means for processing signals from said displacement detecting means and from said position detecting means, and controlling the function of said second moving means, utilizing a signal obtained by said processing as a control signal.
Claim 7
Independent Claim
120 words
A system for controlling position of an object, comprising: means (102, 103) to receive a first signal representing position; means responsive to the first signal to produce second and third signals (COS DATA, SIN DATA) in quadrature; means (101) responsive to the position of the object to produce fourth and fifth signals (A PHASE, B PHASE) in quadrature; means (104-106) for processing the second to fifth signals to produce a sixth signal (104 output) from the second and fourth signals, to produce a seventh signal (105 output) from the third and fifth signals, and to produce an eighth signal (106 output) from the sixth and seventh signals; and means (107, 108) responsive to the eighth signal to move the object.
Claim 8
Independent Claim
120 words
A system for controlling position of an object, comprising: means (102, 103) to receive a first signal representing position; means responsive to the first signal to produce second and third signals (COS DATA, SIN DATA) in quadrature; means (101) responsive to the position of the object to produce fourth and fifth signals (A PHASE, B PHASE) in quadrature; means (104-106) for processing the second to fifth signals to produce a sixth signal (104 output) from the second and fourth signals, to produce a seventh signal (105 output) from the third and fifth signals, and to produce an eighth signal (106 output) from the sixth and seventh signals; and means (107, 108) responsive to the eighth signal to move the object.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.