Recording pulse generating apparatus and information recording apparatus
    131.
    发明申请
    Recording pulse generating apparatus and information recording apparatus 有权
    记录脉冲发生装置和信息记录装置

    公开(公告)号:US20070217311A1

    公开(公告)日:2007-09-20

    申请号:US11730063

    申请日:2007-03-29

    IPC分类号: G11B7/0045

    CPC分类号: G11B7/1263 G11B7/00456

    摘要: The present invention provides a recording pulse generating apparatus capable of forming a recording pit having a proper shape even at the time of ultra-high-speed recording of, for example, 8× recording or higher. A recording controller 10 for generating recording pulse signals having lengths corresponding to ten kinds of lengths of pits formed at the time of recording information has a recording controller 10 for generating the recording pulse signals so that the amplitude of a recording pulse signal corresponding to a pit having a length of 4 T changes from a first amplitude to a second amplitude, and generating the recording pulse signals so that the amplitude of a recording pulse signal corresponding to a pit having a length of 5 T or longer changes from a third amplitude to a fourth amplitude and further changes to a fifth amplitude.

    摘要翻译: 本发明提供一种记录脉冲发生装置,即使在例如8×或更高记录的超高速记录时也能形成具有适当形状的记录凹坑。 用于产生具有对应于在记录信息时形成的凹坑的十种长度的长度的记录脉冲信号的记录控制器10具有用于产生记录脉冲信号的记录控制器10,使得对应于凹坑的记录脉冲信号的幅度 具有从第一幅度到第二幅度的4T长度的变化,并且产生记录脉冲信号,使得对应于长度为5T或更长的凹坑的记录脉冲信号的幅度从第三幅度变化到 第四幅度并进一步变化到第五幅度。

    Information recording apparatus and control method thereof
    132.
    发明授权
    Information recording apparatus and control method thereof 失效
    信息记录装置及其控制方法

    公开(公告)号:US07126893B2

    公开(公告)日:2006-10-24

    申请号:US10461359

    申请日:2003-06-16

    IPC分类号: G11B5/09

    CPC分类号: G11B7/1263 G11B7/00458

    摘要: An information recording apparatus includes a pickup which irradiates a recording light to a disc on which prepits are formed and which outputs return light quantity data, a period determination circuit which determines a data obtaining period in which return light quantity is not affected by the prepit, a sample-hold circuit which obtains the return light quantity in the data obtaining period, and a microcomputer which controls a recording power based on the return light quantity data. The microcomputer obtains the return light quantity data in the data obtaining period in which the return light quantity is not affected by the prepit, and executes control including the recording power control based on the return light quantity data. As a sample-hold circuit detects a pit level and the like in a 9T to 11T period which is hardly affected by the LPP and controls the recording power based on the result, proper recording power control can be executed.

    摘要翻译: 信息记录装置包括将记录光照射到其上形成有预凹坑的盘上并且输出返回光量数据的拾取器;确定返回光量不受预制坑影响的数据获取周期的周期确定电路, 获取数据获取期间的返回光量的采样保持电路以及基于返回光量数据来控制记录功率的微型计算机。 微计算机在返回光量不受预置坑影响的数据获取期间中获得返回光量数据,并且基于返回光量数据执行包括记录功率控制的控制。 作为采样保持电路,在几乎不受LPP影响的9T〜11T期间检测出坑电位等,并且根据该结果控制记录功率,可以进行合适的记录功率控制。

    Circuit for muting noises for an audio amplifier
    136.
    发明授权
    Circuit for muting noises for an audio amplifier 失效
    用于音频放大器的静音电路

    公开(公告)号:US5151942A

    公开(公告)日:1992-09-29

    申请号:US706696

    申请日:1991-05-29

    申请人: Yoshio Sasaki

    发明人: Yoshio Sasaki

    CPC分类号: H03F1/305 H03G3/348

    摘要: A stabilized power supply is provided for supplying a constant voltage to an audio amplifier. There are provided two comparators, a first comparator of which compares an output voltage of the stabilized power supply with a reference value to provide a first comparator signal when the output voltage coincides with the reference value. A second comparator is provided for comparing an output bias voltage of the amplifier with the output voltage of the stabilized power supply and for producing a second comparator signal when the output bias voltage coincides with the output voltage. A NAND gate is provided to be operated by the first and second comparator signals and a mute release signal so as to stop muting operation of the circuit.

    Isolator circuit for an audio system
    137.
    发明授权
    Isolator circuit for an audio system 失效
    用于音频系统的隔离器电路

    公开(公告)号:US5146506A

    公开(公告)日:1992-09-08

    申请号:US706697

    申请日:1991-05-29

    申请人: Yoshio Sasaki

    发明人: Yoshio Sasaki

    IPC分类号: H03H11/28 H03F3/45 H03F3/68

    CPC分类号: H03F3/68 H03F3/45479

    摘要: An isolator circuit for an audio system has an operational amplifier provided between a signal source and an amplifier. A capacitor and a resistor connected in series are connected between each input of the operational amplifier and the signal source. A buffer amplifier is provided between the capacitor and the resistor of each input line of the operational amplifier.

    UV light-absorbing skin-protecting composition
    138.
    发明授权
    UV light-absorbing skin-protecting composition 失效
    紫外线吸收防护组合物

    公开(公告)号:US5063048A

    公开(公告)日:1991-11-05

    申请号:US550540

    申请日:1990-07-10

    摘要: A UV light-absorbing skin-protecting composition which comprises an acrylic copolymer comprising (A) a compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or a methyl group, X is a group of the formula: ##STR2## in which R.sup.2 is a hydroxy group, R.sup.3 is a hydrogen atom or hydroxy group, R.sup.4 and R.sup.5 are the same or different and each is a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogen atom, a nitro group, a carboxyl group, a sulfonic acid group or a sulfonamide group and R.sup.6 is a single bond or a methylene group,Y is --O--, --NH-- or a group of the formula: ##STR3## in which R.sup.7 is a hydrogen atom or a lower alkyl group, R.sup.8 is a hydrogen atom or a hydroxy group, and m and n are the same or different and is each 0 or 1, (B) 40 to 75% by weight of an alkyl acrylate, (C) 10 to 40% by weight of an alkyl methacrylate, and (D) 5 to 30% by weight of a monoethylenically unsaturated monomer having a carboxyl group; and a medium.

    Method for producing sustained release formulation
    139.
    发明授权
    Method for producing sustained release formulation 失效
    缓释制剂的制备方法

    公开(公告)号:US4849141A

    公开(公告)日:1989-07-18

    申请号:US946075

    申请日:1986-12-24

    IPC分类号: A61K9/16 A61K9/20 A61K9/22

    摘要: A method for preparing a sustained release formulation utilizing collagen and/or gelatin as a carrier, which comprises the steps:(i) preparing a uniform and high concentrated mixture with respect to the collagen and/or gelatin by blending an active ingredient, said collagen and/or gelatin, and water or an admixture consisting of water and a hydrophilic organic solvent under one of the conditions selected from:(A) the pH of the mixture is kept below 5 and the salt concentration of the mixture is retained below fiber-forming concentration;(B) chemically modified collagen and/or gelatin is employed; and(C) glucose is added to the mixture;(ii) molding the resultant mixture; and(iii) gradually eliminating the solvent from the molded product.

    摘要翻译: 用于制备利用胶原和/或明胶作为载体的持续释放制剂的方法,其包括以下步骤:(i)通过混合活性成分制备相对于胶原和/或明胶的均匀和高浓缩混合物,所述胶原蛋白 和/或明胶,以及水或由水和亲水性有机溶剂组成的混合物,其中选自以下的条件之一:(A)混合物的pH保持在5以下,混合物的盐浓度保持在纤维 - 形成浓度; (B)使用化学改性的胶原和/或明胶; 和(C)将葡萄糖加入到混合物中; (ii)模制所得混合物; 和(iii)逐渐从成型产品中除去溶剂。

    Amplification gain adjusting circuit
    140.
    发明授权
    Amplification gain adjusting circuit 失效
    放大增益调整电路

    公开(公告)号:US4754232A

    公开(公告)日:1988-06-28

    申请号:US886719

    申请日:1986-07-18

    申请人: Yoshio Sasaki

    发明人: Yoshio Sasaki

    CPC分类号: H03G3/348 H03G1/0088

    摘要: An amplification gain adjusting circuit in which the gain of an AC amplifier is controlled by a voltage dividing series connection of two resistors. One of the resistors is selectively shorted by a switching transistor. The DC bias of the switching transistor is set to prevent current flow through the base of the switching transistor at high AC levels.

    摘要翻译: 一种放大增益调节电路,其中通过两个电阻器的分压串联连接来控制AC放大器的增益。 一个电阻器被开关晶体管选择性短路。 开关晶体管的直流偏压被设定为防止电流以高AC电平流过开关晶体管的基极。