Apparatus for controlling the adjustment rate of a lens assembly
AssigneeKYOCERA Corporation
InventorsMamoru Akiyama, Hirotaka Shiroshita, Toshikatsu Atsuta, Nobuaki Murai, Takayoshi Morooka
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Abstract
A constant speed driving apparatus comprises a starting means for starting a control unit, the first pulse-generating means for generating the first pulse signal with a predetermined frequency, a driving mechanism for driving a load, the second pulse-generating means for generating the second pulse signal corresponding to driving speed of the driving mechanism, and the control unit for controlling the driving mechanism on the basis of the first and second pulse signals.
Claims6
A constant speed driving apparatus, comprising:
- starting means for starting a control unit;
- first pulse-generating means for generating a first pulse signal with predetermined frequency, wherein said first pulse-generating means is a software timer;
- a driving mechanism for driving a load;
- second pulse-generating means for generating a second pulse signal corresponding to driving speed of said driving mechanism;
- and
- said control unit to which said first and second pulse signals are inputted from said respective first and second pulse-generating means, for controlling said driving mechanism on the basis of said first and second pulse signals.
A constant speed driving apparatus, comprising:
- starting means for starting a control unit;
- first pulse-generating means for generating a first pulse signal with predetermined frequency;
- a driving mechanism for driving a load;
- second pulse-generating means for generating a second pulse signal corresponding to driving speed of said driving mechanism, wherein said second pulse-generating means is a photo-interrupter comprising a rotational slit plate for opening and shutting a light path, which is driven by said driving mechanism;
- and
- said control unit to which said first and second pulse signals are inputted from said respective first and second pulse-generating means, for controlling said driving mechanism on the basis of said first and second pulse signals.
Dependencies are inferred from the claim text.