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1. 发明授权

US06388343B1 Power supply unit and electronic apparatus for preventing a leak current 失效
标题翻译：用于防止泄漏电流的电源单元和电子设备
公开(公告)号：US06388343B1
公开(公告)日：2002-05-14
申请号：US09030343
申请日：1998-02-25
申请人： Toru Michigami , Yukifumi Nakazawa , Arimasa Naitoh
发明人： Toru Michigami , Yukifumi Nakazawa , Arimasa Naitoh
IPC分类号： H02J700
CPC分类号： G06F1/26 , Y10T307/74 , Y10T307/937
摘要： A leak current is prevented from flowing during a power off state in a power supply unit having a remote power on/off function by using the momentary switch. In a state of power off, i.e. a state in which a switch SW2 is turned off, power is not applied to a latch circuit 30, and hence power is not consumed. A switch drive circuit 40 does not consume power. When a user depresses a momentary switch SW1 during a state that the switch SW2 is turned off, the switch drive circuit 40 turns the switch SW2 on. As a result, the latch circuit 30 can receive a drive voltage VCC from a node located down stream of the switch SW2, so that it can store or latch the turn on state of the momentary switch SW1. After that, when the user releases the momentary switch SW1, it returns to an original position and operation of the switch drive circuit 40 which turns the switch SW2 on is terminated. However, at this point of time, it becomes possible to maintain the turn on state of the switch SW2 by the operation of the latch circuit 40.
摘要翻译：通过使用瞬时开关，在具有远程电源接通/断开功能的电源单元中，防止在电源关闭状态期间泄漏电流流动。在断电状态，即开关SW2截止的状态下，不对锁存电路30施加电力，因此不消耗电力。开关驱动电路40不消耗电力。当用户在开关SW2断开的状态下按下瞬时开关SW1时，开关驱动电路40使开关SW2接通。结果，锁存电路30可以从位于开关SW2下游的节点接收驱动电压VCC，从而可以存储或锁存瞬时开关SW1的接通状态。此后，当用户释放瞬时开关SW1时，它返回到初始位置，并且使开关SW2导通的开关驱动电路40的操作终止。然而，在这个时间点，通过锁存电路40的操作，可以保持开关SW2的接通状态。

2. 发明授权

US06442443B1 Information processing apparatus and power saving apparatus 失效
标题翻译：信息处理装置和节电装置
公开(公告)号：US06442443B1
公开(公告)日：2002-08-27
申请号：US09118194
申请日：1998-07-17
申请人： Kazuo Fujii , Takeshi Asami , Yukifumi Nakazawa
发明人： Kazuo Fujii , Takeshi Asami , Yukifumi Nakazawa
IPC分类号： G06F1700
CPC分类号： H04R3/00 , G06F1/3203 , H03G3/341
摘要： An improved information processing apparatus, which accomplishes power-saving of an audio amplifier depending on the activity of each peripheral device having an audio signal output. This information processing apparatus includes one or more peripheral devices, each having an audio signal output and a mute signal output, the mute signal output indicating a mute state in which the targeted peripheral device does not output an audio signal, an audio amplifier for receiving the audio signal from each of the one or more peripheral device, a speaker for generating an audible output in accordance with an output of said audio amplifier; and an AND gate for receiving the mute signal from each of the one or more peripheral devices to perform a logical AND operation of the mute signals, the AND gate outputting a control signal for disabling the audio amplifier when all of the mute signals indicate the mute state. Thus, it is determined whether or not each of the peripheral devices for outputting an audio signal stays at the mute state, and the audio amplifier is disabled only when all of these peripheral devices are at the mute state.
摘要翻译：一种改进的信息处理设备，其根据具有音频信号输出的每个外围设备的活动来实现音频放大器的功率节省。该信息处理设备包括一个或多个外围设备，每个外围设备具有音频信号输出和静音信号输出，静音信号输出指示目标外围设备不输出音频信号的静音状态;音频放大器，用于接收来自所述一个或多个外围设备中的每一个的音频信号，用于根据所述音频放大器的输出产生可听输出的扬声器; 以及与门，用于从所述一个或多个外围设备中的每一个接收静音信号以执行所述静音信号的逻辑与运算，所述与门输出用于当所有静音信号指示静音时禁用音频放大器的控制信号州。因此，确定用于输出音频信号的每个外围设备是否保持静音状态，并且仅当所有这些外围设备处于静音状态时音频放大器才被禁用。

3. 发明授权

US06561668B2 Computer with keyboard illuminator for use in operating environments with inadequate ambient lighting conditions 有权
标题翻译：具有键盘照明器的计算机，用于在环境照明条件不足的环境中使用
公开(公告)号：US06561668B2
公开(公告)日：2003-05-13
申请号：US09754692
申请日：2001-01-03
申请人： Ken Katayama , Yukifumi Nakazawa , Yoshio Nishioka , Takahide Wada
发明人： Ken Katayama , Yukifumi Nakazawa , Yoshio Nishioka , Takahide Wada
IPC分类号： F21V3300
CPC分类号： G06F1/1616 , F21V23/04 , F21V33/0052 , F21Y2115/10 , G06F1/1637 , G06F1/1662 , Y10S362/802
摘要： In a portable computer, an LED holder is provided in the upper portion of an LCD and an LED is attached inside the LED holder. Light emitted from the LED passes through an aperture provided in the bottom portion of the LED holder and illuminates a keyboard. Furthermore, switching on or off the LED is manually performed by a switch installed in the portable computer and is also controlled from a utility program, etc., by a switching controller circuit installed inside a main body.
摘要翻译：在便携式计算机中，LED支架设置在LCD的上部，LED固定在LED支架内。从LED发出的光通过设置在LED支架底部的孔，照亮键盘。此外，通过安装在便携式计算机中的开关手动执行LED的接通或关闭，并且还通过安装在主体内的开关控制器电路从公用程序等控制。

4. 发明授权

US5617291A Compact modem system suitable for a notebook or other small computer 失效
标题翻译：紧凑型调制解调器系统适用于笔记本电脑或其他小型计算机
公开(公告)号：US5617291A
公开(公告)日：1997-04-01
申请号：US524856
申请日：1995-09-07
申请人： Kazuo Fujii , Yukifumi Nakazawa , Takehiko Noguchi
发明人： Kazuo Fujii , Yukifumi Nakazawa , Takehiko Noguchi
IPC分类号： G06F3/00 , H04L29/10 , H04M11/06 , H05K7/10
CPC分类号： H04M11/06
摘要： By the connection of a first subcard (26) to a main modem board (10), the modem system is customized to use an external data access arrangement (DAA) (32), while the connection of a second subcard (36) instead of the first customizes the modem system to use a built-in DAA (24). The subcards connect to the main modem board through a single interface connector (18). The first subcard includes a MiniDin connector (28) for connection to the external DAA, while the second subcard includes an RJ11 connector for direct connection to a telephone line. This mechanical arrangement results in a small, compact modem system suitable for use in a small computer.
摘要翻译：通过第一子卡（26）到主调制解调器板（10）的连接，调制解调器系统被定制以使用外部数据访问装置（DAA）（32），而第二子卡（36）的连接代替第一个定制调制解调器系统使用内置的DAA（24）。子卡通过单个接口连接器（18）连接到主调制解调器板。第一个子卡包括用于连接到外部DAA的MiniDin连接器（28），而第二个子卡包括用于直接连接到电话线的RJ11连接器。这种机械布置导致适合用于小型计算机的小型紧凑型调制解调器系统。

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