The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 1998
Filed:
Mar. 10, 1997
Kenji Baba, Hitachi, JP;
Ichiro Embutsu, Hitachi, JP;
Akira Miyashiro, Hitachi, JP;
Bunji Yoshitomi, Hachioji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An automatic feeding apparatus for aquatic life comprising a cultivating device 20 for cultivating the aquatic life 10, and a feeding device 80 for supplying food, which further comprises an image acquisition device 40A for taking an image of wave forms at surface of water 30 in the cultivating device, an image processing device 50 for processing the image to a binary image, an activity calculating device 60 for calculating a value indicating the activity of the aquatic life by calculating a total number and/or a total area of the wave forms based on the binary image, a feeding amount control device 70 for controlling feeding amount and feeding time of the feeding device based on the value, and a device 110 , 40B for adjusting the feeding amount based on cultivation environment and/or number and size of the aquatic life.