专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

62. 发明授权

US4262352A Electronic multifunction timepiece employing the PLA system 失效
标题翻译：采用PLA系统的电子多功能钟表
公开(公告)号：US4262352A
公开(公告)日：1981-04-14
申请号：US13067
申请日：1979-02-21
申请人： Isamu Kobayashi , Takashi Ito
发明人： Isamu Kobayashi , Takashi Ito
IPC分类号： G04F10/00 , G04G3/02 , G04G13/00 , G04G99/00 , G04C19/00 , G04C15/00
CPC分类号： G04G99/006 , G04G13/00 , G04G3/025
摘要： Disclosed is an electronic multifunction timepiece employing the PLA system, including a key input circuit, a clock pulse generator circuit, a random access memory which stores time data therein, an adder circuit, and a read only memory which stores therein control instructions for controlling operations of said random access memory and said adder circuit and for causing said random access memory to write renewed time data and which provides the control signals sequentially on the basis of clock pulses of said clock pulse generator circuit, characterized in that said read only memory comprises a first read only memory which stores therein control signals for renewing the time data of said random access memory independently or operation modes appointed by said key input circuit, and a second read only memory which stores therein control instructions for controlling information processing operations in the operation modes appointed from said key input circuit.
摘要翻译：公开了一种采用PLA系统的电子多功能钟表，包括键输入电路，时钟脉冲发生器电路，存储时间数据的随机存取存储器，加法器电路和只读存储器，其中存储用于控制操作的控制指令的所述随机存取存储器和所述加法器电路，并且用于使所述随机存取存储器写入更新的时间数据，并且基于所述时钟脉冲发生器电路的时钟脉冲顺序提供控制信号，其特征在于，所述只读存储器包括：第一只读存储器，其中存储有用于更新所述随机存取存储器的时间数据的控制信号或由所述键输入电路指定的操作模式;以及第二只读存储器，其中存储用于控制操作模式中的信息处理操作的控制指令从所述键输入电路指定。

IPRDB

热门服务

关于我们

友情链接

联系方式