Image pickup apparatus having means to control adjustment of color balance based on image pickup mode
AssigneeCanon Kabushiki Kaisha
InventorYuji Sakaegi
Life of this patent
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Abstract
An image pickup apparatus includes an image pickup element for picking up an optical image; a trigger circuit for initiating an image pickup by the image pickup element; and a control circuit which incorporates a preparation step for preparing an image pickup prior to initiation of an image pickup by the trigger circuit and a judge step responsive to the trigger circuit and included in the preparation step for omitting the following preparation step and initiating an image pickup.
Claims31
An image pickup apparatus comprising:
- means for picking up an optical image;
- trigger means for initiating an image pickup by said image pickup means;
- and
- control means comprising a preparation step for preparing an image pickup prior to initiation of an image pickup by said trigger means and a judge step responsive to said trigger means and included in said preparation step for omitting the following preparation step and initiating an image pickup.
An image pickup apparatus comprising:
- color image pickup means for converting an optical image into an electric signal;
- color balance adjustment means for adjusting color balance of the output from said color image pickup means in accordance with a color temperature of an object;
- and
- control means for controlling to switch two operations, one for fixing a color balance status adjusted by said color balance adjustment means in a first mode where said image pickup means picks up images continuously at relatively high speed, and the other for causing said color balance adjustment means to adjust a color balance for each image in a second mode where said image pickup means picks up images continuously at relatively low speed or picks up one image.
An image pickup apparatus comprising:
- color balance adjustment means for adjusting color balance of the output from color image pickup means in accordance with a color temperature of an object;
- means for detecting a color temperature of an object;
- means for periodically integrating the output from said detection means;
- and
- means for performing a calculation using a predetermined output and the other output before or after said predetermined output from said integration means.
In a recording or reproducing apparatus having a motor for use in relative displacement of a recording medium and a head at high speed and a booster circuit for supplying power to the internal circuit, said recording or reproducing apparatus comprising:
- control means which controls to actuate said booster circuit after said motor is supplied with a relatively large current, if a first power supply capable of discharging a relatively large current is used, and controls to supply a relatively small current to said motor after said booster circuit is actuated, if a second power supply capable of discharging only a relatively small current is used.
An electric apparatus capable of using a plurality of power supplies different in their capability comprising:
- a plurality of circuits which are fed with power from said power supplies;
- switch means for controlling to supply power to each circuit;
- discrimination means for discriminating between types of said plurality of power supplies;
- and
- control means for changing the order of supplying power to each circuit by said switch means in accordance with an output from said discrimination means.
An electric apparatus comprising:
- discrimination means for discriminating between a first status indicating that a power supply capability has been degraded and a second status indicating that a power supply capability is not degraded;
- and
- control means for controlling to switch two operations based on an output from said discrimination means, one for supplying power to a plurality of drivers substantially at a same time, and the other for supplying power to said plurality of drivers sequentially by a predetermined interval.
An electric apparatus comprising:
- a plurality of circuits supplied with power from a power supply;
- switch means for controlling to supply power to each circuit;
- judge means for judging an output level of said power supply;
- and
- control means for changing the order of supplying power to each circuit by said switch means in accordance with an output from said judge means.
An image pickup apparatus comprising:
- color balance adjustment means for adjusting color balance of the output from color image pickup means in accordance with a color temperature of an object;
- means for recording an output from said image pickup apparatus;
- said recording means includes a motor for changing a relative position of a recording medium and a head, and means for generating a signal corresponding to a rotary phase of said motor;
- and
- control means for controlling said color balance adjustment means in synchro with the output from said signal generating means.
An image pickup apparatus comprising:
- image pickup means for converting incident light from an object into an electric signal;
- color temperature detecting means for detecting color temperature information of incident light;
- drive means for changing the status of incident light;
- and control means for causing said drive means to change the status of incident light from an initial status to a predetermined status at the start of image pickup, and obtaining a white balance based on the output from said detecting means within a predetermined time before said change is completed.
Dependencies are inferred from the claim text.