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. 16, 2001
Filed:
Jun. 04, 1998
Shinichi Fukuda, Kanagawa, JP;
Masahiro Suzuki, Kanagawa, JP;
Toshihiro Kawakubo, Kanagawa, JP;
Masanori Okazaki, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A reproduction initial stage amplifier at the rotary side of a rotary head apparatus, prevents an adverse affect of a power transmission signal to a reproduction channel, operates such that a signal from a reproduction head,of a rotary head,is supplied via a reproduction initial stage amplifier,and via windings,and,of a rotary transformer,to a reproduction system,of the fixed side. A power signal from a power supply circuit,is supplied via windings,and,of the rotary transformer,to a rectifier circuit,. A rectified output from the rectifier circuit,is supplied via a capacitor,for power accumulation to a regulator,, so as to be subjected to voltage stabilization for supply to the reproduction initial stage amplifier,. During a reproduction operation of the reproduction head,, a control circuit,halts power supply from the power supply circuit,and a power accumulated in the capacitor,is supplied to the reproduction initial stage amplifier