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:
Oct. 19, 1993
Filed:
May. 17, 1991
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A reproduction waveform signal l(having a frequency f) containing perpendicular and longitudinal components is reproduced from a recording medium which is magnetized in the vertical direction, thereby recording digital information. The signal is processed through a waveform processing circuit including an operational amplifier having an input side connected to a time constant-setting circuit comprising a capacitor and a resistor, thereby obtaining a processed waveform signal having a constant amplitude and a phase shifted by 2.times.(tan.sup.-1 2.pi.fA).degree. . Bits of the digital information is detected from the processed waveform signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile