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. 04, 2008
Filed:
Aug. 06, 2003
Akihiko Kandori, Kokubunji, JP;
Tsuyoshi Miyashita, Fuchu, JP;
Keiji Tsukada, Kashiwa, JP;
Masahiro Murakami, Hitachinaka, JP;
Kuniomi Ogata, Hachioji, JP;
Akihiko Kandori, Kokubunji, JP;
Tsuyoshi Miyashita, Fuchu, JP;
Keiji Tsukada, Kashiwa, JP;
Masahiro Murakami, Hitachinaka, JP;
Kuniomi Ogata, Hachioji, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
A biomagnetic field measuring apparatus for performing (1) processes for removing a magnetic field waveform generated by a maternal heart from a waveform of a biomagnetic field measured, (2) processes for obtaining a template waveform of a magnetic field waveform generated by the fetal heart from a waveform, from which the magnetic field waveform generated by the maternal heart has been removed, (3) processes for obtaining a waveform of a cross correlation coefficient between the waveform, from which the magnetic field waveform generated by the mother's hears was removed, and the template waveform, and (4) a process for detecting peaks from a waveform of the cross correlation coefficient, and displaying times of appearance of the detected peaks on a display unit.