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1. 发明公开

EP1134660A3 Test mode entering in an integrated circuit for use in floppy disk drive apparatus 审中-公开
标题翻译： Prüfmoduseintritt中使用的集成电路在软盘驱动器
公开(公告)号：EP1134660A3
公开(公告)日：2004-01-14
申请号：EP01300105.2
申请日：2001-01-08
申请人： ALPS ELECTRIC CO., LTD.
发明人： Haitani, Munehisa
IPC分类号： G06F11/26 , G01R31/317
CPC分类号： G01R31/31701
摘要： In a method and a device for entering a test mode in an integrated circuit for use in a floppy disk drive apparatus, the integrated circuit enters the test mode on condition that an enter-test-mode command is input within a predetermined period after the floppy disk drive apparatus is powered on, thereby being prevented from accidentally entering the test mode while operating in a normal mode.

2. 发明公开

EP1187130A2 Seek pattern formation circuit 审中-公开
标题翻译： Suchmustervorbereitungskreis
公开(公告)号：EP1187130A2
公开(公告)日：2002-03-13
申请号：EP01305919.1
申请日：2001-07-09
申请人： ALPS ELECTRIC CO., LTD.
发明人： Haitani, Munehisa
IPC分类号： G11B21/08 , G11B5/55
CPC分类号： G11B5/5547 , G11B21/083
摘要： A seek pattern formation circuit (5) includes a seek pattern generation circuit (2) for generating a seek pattern formed of a predetermined pulse train every time a step pulse is applied and a seek pattern shaping circuit (3) for shaping the seek pattern and supplying the shaped seek pattern to a stepping motor driver (6). When the period for which the step pulse is supplied is shorter than the period for which the seek pattern is generated, and when at least one of pulses included in the seek pattern is very narrow, the seek pattern shaping circuit selectively eliminates the narrow pulse. As a result, narrow pulses which may induce noise are not supplied to the stepping motor driver, and hence a malfunction in the stepping motor driver does not occur.
摘要翻译：搜索图形形成电路（5）包括：寻道图案生成电路（2），用于在每次施加阶跃脉冲时产生由规定的脉冲串形成的搜索图形;以及搜索图案整形电路（3），用于对搜索图案进行整形;以及向步进电机驱动器（6）提供成形的搜索图案。当提供步进脉冲的周期短于产生搜索模式的周期时，并且当包括在搜索模式中的至少一个脉冲非常窄时，搜索模式整形电路选择性地消除窄脉冲。结果，不会向步进电机驱动器提供可能引起噪声的窄脉冲，因此不会发生步进电动机驱动器的故障。

3. 发明公开

EP1187130A3 Seek pattern formation circuit 审中-公开
标题翻译： Suchmustervorbereitungskreis
公开(公告)号：EP1187130A3
公开(公告)日：2003-08-20
申请号：EP01305919.1
申请日：2001-07-09
申请人： ALPS ELECTRIC CO., LTD.
发明人： Haitani, Munehisa
IPC分类号： G11B21/08 , G11B5/55
CPC分类号： G11B5/5547 , G11B21/083
摘要： A seek pattern formation circuit (5) includes a seek pattern generation circuit (2) for generating a seek pattern formed of a predetermined pulse train every time a step pulse is applied and a seek pattern shaping circuit (3) for shaping the seek pattern and supplying the shaped seek pattern to a stepping motor driver (6). When the period for which the step pulse is supplied is shorter than the period for which the seek pattern is generated, and when at least one of pulses included in the seek pattern is very narrow, the seek pattern shaping circuit selectively eliminates the narrow pulse. As a result, narrow pulses which may induce noise are not supplied to the stepping motor driver, and hence a malfunction in the stepping motor driver does not occur.

4. 发明公开

EP1187136A3 Floppy disc driving device 审中-公开
标题翻译：软盘驱动器
公开(公告)号：EP1187136A3
公开(公告)日：2002-04-17
申请号：EP01121215.6
申请日：2001-09-05
申请人： ALPS ELECTRIC CO., LTD.
发明人： Haitani, Munehisa
IPC分类号： G11B33/10 , G11B33/12
CPC分类号： G11B33/122 , G11B33/10
摘要： The invention provides a floppy disc driving device that is manufactured at a low cost and capable of maintaining light emitting brightness at a constant value continuously by using a membrane conductor for connection between a light emitting diode and an integrated circuit and by applying current driving of the light emitting diode. The floppy disc driving device is provided with a circuit substrate (2) mounted on one side of the chassis (1) on which at least an integrated circuit (3) and an interface connector (4) are mounted, a light emitting diode (6) located near a diskette insertion slot that emits light when a floppy disc is rotatively driven, and a connection conductor (7) that connects between the circuit substrate and the light emitting diode, wherein the connection conductor is the membrane conductor formed by spreading coating material on one side of the chassis, and wherein the light emitting diode is driven with a current supplied from the integrated circuit through the membrane conductor.
摘要翻译：本发明提供一种软盘驱动装置，其以低成本制造，并且通过使用用于连接发光二极管和集成电路的薄膜导体并且通过施加电流驱动该驱动装置，能够将发光亮度连续地维持在恒定值发光二极管。软盘驱动装置具有安装在其上至少安装有集成电路（3）和接口连接器（4）的机壳（1）的一侧上的电路基板（2），发光二极管（6 ），其位于软盘插入口附近，该软盘插入口在软盘被旋转驱动时发光;以及连接导体（7），其连接在电路基板和发光二极管之间，其中连接导体是通过涂布材料在所述底架的一侧上，并且其中所述发光二极管由从所述集成电路通过所述膜导体供应的电流驱动。

5. 发明公开

EP1187136A2 Floppy disc driving device 审中-公开
标题翻译：驾驶灵活板
公开(公告)号：EP1187136A2
公开(公告)日：2002-03-13
申请号：EP01121215.6
申请日：2001-09-05
申请人： ALPS ELECTRIC CO., LTD.
发明人： Haitani, Munehisa
IPC分类号： G11B33/10 , G11B33/12
CPC分类号： G11B33/122 , G11B33/10
摘要： The invention provides a floppy disc driving device that is manufactured at a low cost and capable of maintaining light emitting brightness at a constant value continuously by using a membrane conductor for connection between a light emitting diode and an integrated circuit and by applying current driving of the light emitting diode. The floppy disc driving device is provided with a circuit substrate (2) mounted on one side of the chassis (1) on which at least an integrated circuit (3) and an interface connector (4) are mounted, a light emitting diode (6) located near a diskette insertion slot that emits light when a floppy disc is rotatively driven, and a connection conductor (7) that connects between the circuit substrate and the light emitting diode, wherein the connection conductor is the membrane conductor formed by spreading coating material on one side of the chassis, and wherein the light emitting diode is driven with a current supplied from the integrated circuit through the membrane conductor.

6. 发明公开

EP1134660A2 Test mode entering in an integrated circuit for use in floppy disk drive apparatus 审中-公开
标题翻译： Prüfmoduseintritt在einer Integrierten Schaltung zur Verwendung在einem flexiblen Plattenlaufwerk
公开(公告)号：EP1134660A2
公开(公告)日：2001-09-19
申请号：EP01300105.2
申请日：2001-01-08
申请人： ALPS ELECTRIC CO., LTD.
发明人： Haitani, Munehisa
IPC分类号： G06F11/26
CPC分类号： G01R31/31701
摘要： In a method and a device for entering a test mode in an integrated circuit for use in a floppy disk drive apparatus, the integrated circuit enters the test mode on condition that an enter-test-mode command is input within a predetermined period after the floppy disk drive apparatus is powered on, thereby being prevented from accidentally entering the test mode while operating in a normal mode.
摘要翻译：在用于在用于软盘驱动装置的集成电路中输入测试模式的方法和装置中，集成电路进入测试模式，条件是在软盘之后的预定时段内输入进入测试模式命令磁盘驱动装置通电，从而防止在正常模式下工作时意外进入测试模式。

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