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:
Nov. 23, 1982
Filed:
Feb. 06, 1981
Soichi Onishi, Yao, JP;
Shigeru Kitano, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A data reader reads data from a magnetic tape using a reproduction head. This data is presented to a loading control circuit which amplifies the signal produced by the reproduction head, as needed. The sufficiency of the volume level produced by the loading control circuit is detected by a volume adjustment detection circuit which detects the sufficiency of the signal level. If the signal level is insufficient, a buzzer is sounded indicating to the operator of the data reader that the gain level of the loading control circuit is insufficient. If the gain level is determined to be sufficient by the volume adjustment detection circuit, a signal path to a data detection circuit is enabled. The data detection circuit determines the presence of actual data and presents this data to a readout circuit.