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US 7,243,848 B2Granted
Optical module with accelerated reset capability
AssigneesOptoelectronics Co., Ltd., Cypress Semiconductor Corporation
InventorKazukuni Hosoi
Life of this patent
Estimating the term…
Abstract
An optical scanning system in which plural scan lines are sequentially scanned, and parameters association with the scanning are monitored. If one or more parameters change during the scanning operation, the system automatically begins rescanning, rather than continuing to scan the entire frame. This results in a system that operates more quickly than prior art systems, which have to waste an entire frame.
Claims11
A method of reading an image comprising:
- sequentially scanning plural lines of said image, each line being scanned at a shutter speed;
- adjusting the shutter speed, the shutter speed being adjustable based upon ambient conditions;
- upon determining that the shutter speed has changed during the scan of the image, stopping the scan of the image, and beginning scanning of a first line of the image again substantially automatically.
Apparatus for reading symbols comprising:
- a sensor for detecting changing ambient conditions and for causing, in response to said changing conditions, changes in integration time associated with capturing an image, and
- a scanner operable to scan the image line by line;
- and operable to:
- stop the scan of the image, and begin scanning a first line of the image again substantially immediately if the integration time changes during the scan of the image.
1 more element
A method of reading an image comprising:
- scanning lines of the image using a shutter speed;
- adjusting the shutter speed based on at least one ambient condition;
- and
- upon determining that the shutter speed has changed during the scan of the image,
- stopping the image;
- and
- substantially automatically beginning scanning the image again, at a first line thereof.
4 more elements
Dependencies are inferred from the claim text.