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    • 9. 发明授权
    • Telephone-call prohibit circuit
    • 电话禁止电路
    • US4482787A
    • 1984-11-13
    • US455600
    • 1983-01-04
    • Iwao SagaraKeisuke Kataoka
    • Iwao SagaraKeisuke Kataoka
    • H04M1/677H04M1/66
    • H04M1/677
    • A circuit for preventing a telephone set from being used without approval, the telephone set including a handset, telephone lines coupled to the handset, a dial pulse signal generator and hookswitches for coupling the telephone lines to the handset and for cooperating with the handset. A circuit is provided for converting the dial pulse signals into a binary code, a prohibit circuit is provided for generating a prohibit signal which prohibits a telephone call when the binary codes corresponding to prohibited dial numbers are input thereto, and an unlock circuit is provided for generating during a predetermined period a control signal which allows a telephone call when the binary codes corresponding to secret dial numbers are input thereto. A transfer switching means is provided for selectively coupling the converting circuit to either the prohibit circuit or to the unlock circuit and for cooperating with the hookswitches. A gate circuit is provided for preventing the passing of the prohibit signal of the prohibit circuit in response to the control signal of the unlock circuit, and a switch is provided for breaking the telephone lines in response to the prohibit signal from the gate circuit. A reset signal is generated to the prohibit circuit when the hookswitches are closed, whereby the prohibit circuit is reset to its initial condition.
    • 一种用于防止电话机未经批准使用的电路,电话机包括手机,连接到手机的电话线,拨号脉冲信号发生器和用于将电话线连接到手机并与手机配合的挂钩。 提供一种用于将拨号脉冲信号转换为二进制码的电路,提供禁止电路,用于在输入与禁止的拨号号码相对应的二进制码时,产生禁止电话呼叫的禁止信号,并且提供解锁电路用于 在预定时段期间产生一个控制信号,当对应于秘密拨号号码的二进制代码被输入时,允许电话呼叫。 提供转换开关装置,用于选择性地将转换电路耦合到禁止电路或解锁电路,并与钩开关配合。 提供了一种门电路,用于响应于解锁电路的控制信号而防止禁止电路的禁止信号通过,并且提供了一个用于响应于来自门电路的禁止信号而断开电话线的开关。 当钩开关闭合时,向禁止电路产生复位信号,由此将禁止电路复位到其初始状态。
    • 10. 发明授权
    • Programmable logic array arrangement
    • 可编程逻辑阵列布置
    • US4207556A
    • 1980-06-10
    • US857306
    • 1977-12-05
    • Yoshi SugiyamaKeisuke Kataoka
    • Yoshi SugiyamaKeisuke Kataoka
    • H01L23/525H01L27/118H03K19/177H03K19/08
    • H01L27/11801H01L23/525H01L23/5256H03K19/17708H01L2924/0002
    • The programmable logic array arrangement comprises a plurality of cell units formed on a semiconductor substrate and wiring means for interconnecting the cell units. Each cell unit comprises a plurality of electronic elements such as resistors, transistors and diodes which are necessary to form logic circuits, and the wiring means comprises a plurality of bit lines and product term lines which are arranged in the form of a matrix, conductive layers for determining the type and input/output conditions of the logic circuit to be formed. The array arrangement further comprises a group of switching elements connected between the electronic element, bit lines, product term lines, and conductive layers for interconnecting or disconnecting these elements thereby forming desired logic circuits.
    • 可编程逻辑阵列布置包括形成在半导体衬底上的多个单元单元和用于互连单元单元的布线装置。 每个单元单元包括形成逻辑电路所必需的诸如电阻器,晶体管和二极管的多个电子元件,并且布线装置包括以矩阵形式布置的多个位线和乘积项线,导电层 用于确定要形成的逻辑电路的类型和输入/输出条件。 阵列布置还包括连接在电子元件,位线,乘积项线和导电层之间的一组开关元件,用于互连或断开这些元件,从而形成期望的逻辑电路。