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:
May. 03, 1994
Filed:
Mar. 11, 1992
Masahiro Ikeda, Shimosuwa, JP;
Sankyo Seiki Mfg. Co., Ltd., Nagano, JP;
Abstract
A magnetic recording/reproducing apparatus for recording data on a medium, for checking the recorded data and for retrieving any of the recorded data comprises a data reproduction device for reading data from a medium includes a conversion device for converting the signals for the reproduced data from the data reproduction device into read data pulses, a variable frequency oscillator for producing read data and window data out of the read data pulses from the conversion device and a follow-up characteristics switch device for switching the follow-up characteristics of the variable frequency oscillator from a narrow range option suitable for data checking to a wide range option suitable for data reproduction. With such an arrangement, a high level of quality of recorded data can be maintained, a wide range of compatibility of recording media is ensured and the rate of issuing error messages due to ISVs that can interrupt the operation of the apparatus is reduced.