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    • 8. 发明授权
    • Data processing system
    • 数据处理系统
    • US3668648A
    • 1972-06-06
    • US3668648D
    • 1970-06-15
    • RICOH KK
    • YOSHIKAWA KINICHI
    • G06F3/00G06F3/06G05B19/38G05B19/42
    • G06F3/002G06F3/06
    • The invention provides a data processing system wherein a data processing equipment such as punched typewriter is operated by a magnetic tape upon which are recorded in alternating sequence digitally coded signal groups and audio signal groups which are used to give an operator instructions as to the operation of the equipment, tape, etc. A special code inserted at the end of each of the digitally coded signal groups indicates the switching from the digitally coded signal group to the audio signal group. A switching audio signal (for example an 800 Hz tone) is inserted at the end of the audio signal group to indicate switching from the audio signal group to the digitally coded signal group.
    • 本发明提供了一种数据处理系统,其中诸如打孔打字机的数据处理设备由磁带操作,磁带被记录在交替顺序的数字编码信号组和音频信号组中,这些信号组和音频信号组用于给操作者指示操作 设备,磁带等。插入每个数字编码信号组末尾的特殊代码指示从数字编码信号组到音频信号组的切换。 在音频信号组的末端插入切换音频信号(例如800Hz音调),以指示从音频信号组切换到数字编码信号组。
    • 10. 发明授权
    • Electronic thermostat
    • 电子恒温器
    • US3942718A
    • 1976-03-09
    • US352518
    • 1973-04-19
    • Joseph M. Palmieri
    • Joseph M. Palmieri
    • G05D23/24G05B19/38
    • G05D23/24G05D23/1902G05D23/1909
    • An electronic thermostat for controlling the operation of a temperature changing device such as a heater or a cooling device to maintain the temperature of an object at a desired level. The thermostat comprises a device in heat exchanging relationship with the object for generating a temperature signal representative of the temperature of the object. A reference signal generator is operable to generate a reference signal representative of the desired temperature level. A comparator compares the reference and temperature signals and produces an operate signal to operate the temperature changing device when the reference and temperature signals are unequal.
    • 一种用于控制诸如加热器或冷却装置之类的温度改变装置的操作以将物体的温度保持在期望水平的电子恒温器。 恒温器包括与物体热交换关系的装置,用于产生表示物体温度的温度信号。 参考信号发生器可操作以产生表示所需温度水平的参考信号。 比较器比较参考和温度信号,并产生操作信号以在参考温度信号不相等时操作温度变化装置。