公开(公告)号：US3660838A

公开(公告)日：1972-05-02

申请号：US3660838D

申请日：1970-04-02

Applicant: CONTROL DEVICES INC

Inventor： GOVE DONALD C ,  MULLINS BARRY W ,  ROUSSEAU EDMUND G

IPC: H03K17/98 ,  G08C9/02

CPC classification number: H03K17/98

Abstract: A multiple point switching array employs a plurality of keys for effecting a variable capacitance coupling between an oscillator and oscillation-responsive semiconductor switching circuits. The output of the semiconductor switches are encoded onto a plurality of sense buses, and connected therefrom to output digit lines via a plurality of sense amplifiers. A strobe circuit is provided to simultaneously enable the sense amplifiers after their switching thresholds have been exceeded, and circuitry is employed to inhibit all outputs when more than one key is actuated at any one time.

Abstract translation: 多点开关阵列采用多个键来实现振荡器和振荡响应半导体开关电路之间的可变电容耦合。 半导体开关的输出被编码到多个感测总线上，并且经由多个读出放大器与其连接以输出数字线。