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A device for adjusting a remote speech direction changes machine being operated with a plurality of lines for the operation by means of a blind
A device for adjusting a remote speech direction changes machine being operated with a plurality of lines for the operation by means of a blind
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机译:一种用于调节远程语音方向改变机器的装置,该装置用多条线操作以通过百叶窗进行操作
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摘要
Apparatus for providing auditory and tactile recognition of a light signal associated with a line-selector pushbutton of a multi-line telephone instrument. A photocell is provided for sensing the light signal. An oscillator generates a sine wave voltage which is amplified and applied to excite a piezoelectric crystal into vibration in response to activation of the photocell. An auxiliary pushbutton is disposed in alignment with the line selector pushbutton so that manual depression of the auxiliary pushbutton actuates the line selector pushbutton. Vibration of the crystal in response to the light signal acts upon the auxiliary pushbutton to impart the vibration thereto so that the presence of a light signal is sensed by vibration of the auxiliary pushbutton.
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