Patent ID: 6175461
Filing Date: 2001-01-16
Classification: G11B

Abstract:
A signal reproduction apparatus comprising:a rotary head block including a reproduction head along which a tape-shaped recording medium is applied, so that at least a reproduction operation is carried out intermittently according to rotation of said rotary head block, a reproduction initial stage amplifier connected to said reproduction head, a rectifier circuit for supplying electric power to said reproduction initial stage amplifier, and power accumulation means for accumulating electric power supplied from said rectifier circuit and for supplying an accumulated power to said reproduction initial stage amplifier when no power is supplied from said rectifier circuit;a rotary transformer for transmitting an output signal of said reproduction initial stage amplifier from said rotary head block and a power signal to said rectifier circuit; anda power supply circuit for supplying said power signal to said rotary transformer and for stopping a supply of said power signal during a reproduction operation of said reproduction head of said rotary head block, whereinsaid rotary transformer includes a power signal channel formed of a first pair of windings for transmitting the power signal and a reproduction signal channel formed of a second pair of windings for transmitting the output signal of said reproduction initial stage amplifier.