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:
Jan. 06, 1987
Filed:
Jun. 28, 1984
Hiroshi Suzuki, Saitama, JP;
Makoto Imamura, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A waveform equalizer is arranged to transform a signal reproduced from a magnetic recording medium and having a longitudinal waveform component to a signal of a perpendicular waveform. The waveform equalizer comprises a tapped delay line having a first end connected to receive the reproduced signal and a second end arranged to reflect the reproduced signal, and a weighting adder for weighting tap voltages of the tapped delay line and adding together the weighted voltages. A combiner may be provided to additively or subtractively combine an output signal of the weighting adder with an output signal of either the tapped delay line or another delay line receiving the reproduced signal so as to transform a reproduced signal having both longitudinal and perpendicular waveform components to a signal with a longitudinal waveform or a perpendicular waveform. The second end of the tapped delay line may be short-circuited or connected to a resistor in order to reflect the signal.