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    • 4. 发明授权
    • Transmitter for vehicle remote control system
    • 车载遥控系统变送器
    • US5592169A
    • 1997-01-07
    • US360353
    • 1994-12-21
    • Yasunori NakamuraShunji Kato
    • Yasunori NakamuraShunji Kato
    • G07C9/00G08C19/12
    • G07C9/00182G07C9/00944G07C2009/00595G07C2009/00793
    • A remote control transmitter used for a switching of a state of a door lock device between a locked state and an unlocked state and so on comprises a portable-size case, operating buttons provided on an outer surface of the case, a secondary battery provided within the case, a solar battery provided on the outer surface of the case and rechargeably connected to the secondary battery, and a generator for generating a coded signal. One terminal of each operating button is connected to a positive terminal of the secondary battery and the other terminal is connected to a positive terminal of the generator. When one of the operating buttons is pushed, electric current is fed from the secondary battery to the generator.
    • 用于在锁定状态和解锁状态等之间切换门锁装置的遥控发射器包括便携式大小的壳体,设置在壳体的外表面上的操作按钮,设置在壳体的外表面上的二次电池 该情况下,设置在壳体的外表面并可再充电地连接到二次电池的太阳能电池,以及用于产生编码信号的发生器。 每个操作按钮的一个端子连接到二次电池的正极端子,另一个端子连接到发电机的正极端子。 当其中一个操作按钮被按下时,电流从二次电池供给到发电机。
    • 10. 发明授权
    • Spread spectrum communication transmitter an LSI therefor
    • 扩频通信发射机为LSI
    • US5500871A
    • 1996-03-19
    • US225252
    • 1994-04-08
    • Shunji KatoHiromitsu Miyajima
    • Shunji KatoHiromitsu Miyajima
    • H04J13/00H04B1/707H04L27/12H04B1/69
    • H04B1/69
    • High-sensitivity transmission can be performed in a wide temperature range, and spread spectrum communication free from jitters and bit errors in high-speed digital signal transmission can be performed. There is provided a spread spectrum communication transmitter for performing FSK modulation for switching the frequency in correspondence with the level of each bit of the serial digital data, performing spread spectrum modulation of a resultant FSK-modulated signal, and transmitting the data, wherein an FSK modulation unit (1) for performing the FSK modulation has a direct digital synthesizer and a synchronization circuit (19) is arranged to synchronize an FSK signal having a frequency corresponding to at least one level of the each bit with a PN code for the spread spectrum modulation.
    • 可以在宽的温度范围内执行高灵敏度传输,并且可以执行无抖动的扩展频谱通信和高速数字信号传输中的位错误。 提供了一种扩展频谱通信发射机,用于执行与串行数字数据的每个比特的电平相对应的频率的FSK调制,对所得到的FSK调制信号进行扩频调制,并发送数据,其中FSK 用于执行FSK调制的调制单元(1)具有直接数字合成器,并且同步电路(19)被布置为使具有对应于每个位的至少一个电平的频率的FSK信号与用于扩展频谱的PN码同步 调制。