Sony Corporation

Toshihiro Kawakubo

Masahiro Suzuki

Kenichi Ono

Shinichi Fukuda

Minoru Shimizu

Takuya Motoishi

Norio Shoji

Yuuki Kubota

Naoki Ogishita

Junkichi Sugita

Takashi Sonehara

Daisuke Kawamoto

Kimimasa Senba

Ryousuke Tobiyama

Nobuhiro Kumae

Masanori Okazaki

Masami Hosaka

Takehiko Mizutani

Tailiang Qian

Toshiyuki Shiwa

Shunichiro Takamura

According to the present disclosure, there is provided an information processing apparatus, including a first housing, a second housing, having a display section which displays information, in which the display section is reversed between a first position and a second position, a connection section which rotatably connects the second housing with respect to the first housing, a posture detection section which detects any of the four postures of a first posture, a second posture, a third posture, and a fourth posture, and a display control section which controls a display state of the display section in accordance with a detection result of the posture detection section.

Information processing apparatus and information processing method that transitions between multiple postures for controlling a display state

A PLL circuit functioning as a clock recovery circuit in a tape recording and playback apparatus employing the PRML method has a level determining circuit for detecting that head output level (signal level) is at or lower than a certain level during track crossing for a high-speed search, and effects a hold on a loop filter according to a level determination output to thereby hold PLL operation, whereby the PLL behavior is not disturbed by a noise component occurring during track crossing. Thus, it is possible to stabilize search operation and increase the design margin.

PLL circuit and recording and playback apparatus using same

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

Rotary head block with rotary transformer having separate channels for power signal and playback signal

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Nagano, Japan

Toshihiro Kawakubo