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    • 2. 发明授权
    • Teaching machine
    • 教学机器
    • US4673357A
    • 1987-06-16
    • US663064
    • 1984-10-17
    • Takamasa Ito
    • Takamasa Ito
    • G11B5/80G06K7/01G06K19/00G09B5/06G11B23/36G09B5/04
    • G09B5/062
    • A teaching machine is used with a card to pose a question to a user of the machine and to accommodate both a first case wherein a voice signal is audibly reproduced before the user enters his answer to the question into the machine and a second case wherein a voice signal is audibly reproduced after the user enters his answer into the machine. The machine includes a signal reproducer that cooperates with a card upon which a control signal, a correct-answer signal encoding a correct answer to the question and a voice signal are recorded and that reproduces the recorded signals from the card. A user of the machine enters a test answer to the question into the machine via a keyboard. A first memory responds to the correct-answer signal as reproduced by the signal reproducer for storing the correct answer, and a second memory responds to the keyboard for storing the test answer. A comparator responds jointly to the first and second memories for comparing the correct answer and the test answer and producing an output signal in accordance with the comparison. Lamps responsive to the comparator output signal indicate whether or not the test answer is correct. An audio channel jointly responsive to the control signal and the voice signal as reproduced by the signal reproducer audibly reproduces the voice signal before making the comparison in the first case and after making the comparison in the second case.
    • 教学机器与卡一起使用以向机器的用户提出问题,并且既适用于在用户将问题回答到机器中之前将语音信号可听地再现的第一种情况和第二种情况,其中 在用户将他的答案输入机器后,语音信号可以被再现。 该机器包括信号再现器,与信号卡协同操作,在该卡上控制信号,对问题的正确答案和声音信号进行编码的正确答案信号,并从卡中再现记录信号。 机器的用户通过键盘将问题的测试答案输入机器。 第一存储器响应由信号再现器再现的用于存储正确答案的正确答案信号,并且第二存储器响应键盘存储测试答案。 比较器共同响应第一和第二存储器,用于比较正确答案和测试答案,并根据比较产生输出信号。 响应于比较器输出信号的灯指示测试答案是否正确。 在第一种情况下进行比较之前和在第二种情况下进行比较之后,由信号再现器再现的控制信号和语音信号共同响应的音频信道可以再现声音信号。
    • 6. 发明授权
    • Method for forming a silicide layer
    • 硅化物层的形成方法
    • US06809039B2
    • 2004-10-26
    • US09940247
    • 2001-08-27
    • Takamasa Ito
    • Takamasa Ito
    • H01L21302
    • C23F1/28H01L21/28518H01L21/32134
    • A method for forming a metal silicide layer in a self-aligned manner on a source region and a drain region and a gate electrode of a semiconductor device formed on a semiconductor substrate, the method comprising the steps of: depositing a cobalt film over an entire surface of the semiconductor device formed on the semiconductor substrate, forming the metal silicide layer on the source region and drain region and the gate electrode by performing a heat treating thereof, and etching away an unreacted cobalt remaining on the semiconductor substrate using an admixture solution made of hydrochloric acid, hydrogen peroxide, and water, having relative concentration ratio ranging from 1:1:5 to 3:1:5, at a solution temperature of 25 to 45° C., with an etching time of 1 to 20 minutes.
    • 一种在半导体衬底上形成的半导体器件的源极区和漏极区以及栅电极上以自对准的方式形成金属硅化物层的方法,该方法包括以下步骤: 形成在半导体衬底上的半导体器件的表面,通过进行其热处理在源极区和漏极区以及栅电极上形成金属硅化物层,并使用制备的混合溶液蚀刻残留在半导体衬底上的未反应的钴 的盐酸,过氧化氢和水,相对浓度比为1:1:5〜3:1:5,溶液温度为25〜45℃,蚀刻时间为1〜20分钟。
    • 7. 发明授权
    • Method of recording on a magnetic tape which is attached to a card
    • 在附着在卡上的磁带上进行记录的方法
    • US4229770A
    • 1980-10-21
    • US008767
    • 1979-02-02
    • Takamasa Ito
    • Takamasa Ito
    • G11B5/09G11B5/86
    • G11B5/86
    • A recording method for a magnetic tape attached to a card is provided in which an audio signal from a master recorder is pulse coded by a PCM conversion circuit and stored in a solid memory of a predetermined capacity, and the stored signal is read repetitively by a control signal, then converted into an analog audio signal and recorded on one of the channel tracks of the magnetic tape in the slave side recorder while a cue signal formed at a predetermined timing in correspondence to the audio signal is recorded repetitively on the other channel track of the magnetic tape.
    • 提供一种附着在卡上的磁带的记录方法,其中来自主记录器的音频信号由PCM转换电路进行脉冲编码并存储在预定容量的固态存储器中,并且存储的信号被重复地读取 控制信号,然后转换为模拟音频信号,并记录在从属侧记录器中的磁带的一个通道轨道上,同时在对应于音频信号的预定定时形成的提示信号被重复地记录在另一个通道轨道上 的磁带。