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:
Jul. 08, 1980
Filed:
Jun. 27, 1978
Hideki Kohno, Tokyo, JP;
Hidemi Shiono, Akikawa, JP;
Chitose Nakaya, Hachioji, JP;
Kensuke Sekihara, Sakamachi, JP;
Teruichi Tomura, Kunitachi, JP;
Shinji Yamamoto, Hachioji, JP;
Takayuki Hayakawa, Hachioji, JP;
Isao Horiba, Kashiwa, JP;
Shigenobu Yanaka, Kashiwa, JP;
Hitachi Medical Corporation, , JP;
Abstract
A tomographic imaging system is disclosed in which the quantity of absorption or transmittance of a transmissive radiation by or through a certain tomographic cross-section of an object under consideration is detected and the distribution of radiation absorption or transmittance in the cross-section is reconstructed through a convolution operation. A weighting function used in the convolution operation is prepared with a predetermined one of its positive orders the value of which is an integration of the weighting function from the predetermined positive order to positive infinity and a predetermined one of its negative orders the value of which is in integration of the weighting function from the predetermined negative order to negative infinity.