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    • 51. 发明授权
    • Protection method, control circuit, and battery unit
    • 保护方法,控制电路和电池单元
    • US06492791B1
    • 2002-12-10
    • US09528201
    • 2000-03-17
    • Mitsuo SaekiMasafumi OkumuraShigeo TanakaHidekiyo Ozawa
    • Mitsuo SaekiMasafumi OkumuraShigeo TanakaHidekiyo Ozawa
    • H02J700
    • H01M10/425H02H7/18H02J7/0026H02J2007/0037H02J2007/004
    • A protection method for preventing battery cells from over-discharging and being overcharged, a control circuit, and a battery unit are provided. In the protection method, when a set signal “1” is supplied to a set terminal, a flip-flop outputs “1”. The gate of a discharge control FET then becomes “1”, so that the discharge control FET is OFF regardless of a discharge control signal supplied from a voltage monitor circuit. When a reset signal “1” is supplied to a reset terminal, the flip-flop outputs +0”. The discharge control FET is then switched on and off in accordance with the output of a discharge control circuit of the voltage monitor circuit. In this manner, battery cells connected to an electronic device do not over-discharge, even when they are left unused for a long period of time. Thus, the battery unit can be prevented from deteriorating and shortening the life thereof.
    • 提供一种用于防止电池过度放电和过充电的保护方法,控制电路和电池单元。 在保护方法中,当设定信号“1”被提供给设定端子时,触发器输出“1”。 然后,放电控制FET的栅极变为“1”,使得放电控制FET不管从电压监视电路提供的放电控制信号如何都是OFF的。 当复位信号“1”被提供给复位端时,触发器输出+0“,然后根据电压监视电路的放电控制电路的输出,对放电控制FET进行接通和断开 这样,即使长时间不使用的情况下,连接到电子设备的电池单元也不会过度放电,因此能够防止电池单元的劣化,缩短寿命。
    • 58. 发明授权
    • Bi-directional communication system
    • 双向通信系统
    • US5608730A
    • 1997-03-04
    • US170077
    • 1993-12-17
    • Yoshio OsakabeShigeo TanakaAkira KatsuyamaHiroshi YamazakiYasuo KusagayaNoriko KotabeKouichi SugiyamaMakoto Sato
    • Yoshio OsakabeShigeo TanakaAkira KatsuyamaHiroshi YamazakiYasuo KusagayaNoriko KotabeKouichi SugiyamaMakoto Sato
    • H04Q9/00H04B1/20H04L12/28H04L12/40H04J3/14
    • H04L12/2834H04B1/205H04L12/2803H04N21/478H04N5/44513H04L12/282H04L2012/2849H04N21/4622
    • There is disclosed a communication system using a bi-directional bus, which includes a plurality of devices (e.g., TV image receiver or video tape recorder, etc.) connected to each other. Each device includes a transmit signal formation unit having a frame structure including an address field for specifying addresses of devices between which communication is carried out, a control field for specifying whether communication is carried out in the state where device on the receiving side is locked or in the state where that device is unlocked, and a data field for specifying data to be transmitted. For transmitting data having a data quantity greater than data capacity of the data field, the data is divided into a plurality of frames, an indication to lock device on the receiving side is given to control field of a frame transmitted first, and an indication to unlock that device is given to control field of a frame transmitted last. The transmit signal thus indicated is transmitted through the bi-directional bus by a bus output unit. In addition, there are also disclosed a transmitting method, a receiving method and a communication method, which can be applied to such a bi-directional bus system.
    • 公开了使用双向总线的通信系统,其包括彼此连接的多个设备(例如,电视图像接收机或录像机等)。 每个设备包括发送信号形成单元,其具有帧结构,该帧结构包括用于指定在其进行通信的设备的地址的地址字段,用于指定在接收侧的设备被锁定的状态下是否进行通信的控制字段, 在该设备被解锁的状态下,以及用于指定要发送的数据的数据字段。 为了发送数据量大于数据字段的数据量的数据,将数据划分成多个帧,将接收侧的锁定装置的指示给予首先发送的帧的控制字段, 解锁该设备被给予最后发送的帧的控制字段。 如此指示的发射信号通过总线输出单元通过双向总线传输。 此外,还公开了可以应用于这种双向总线系统的发送方法,接收方法和通信方法。