公开(公告)号：US3901371A

公开(公告)日：1975-08-26

申请号：US29738572

申请日：1972-10-13

Applicant: RCA CORP

Inventor： SCOTT JR PHILIP ROMEO

IPC: B41J1/30 ,  B41J1/24 ,  B41J1/26 ,  B41J7/36 ,  G01D5/249 ,  H03M1/26 ,  B41J1/32

CPC classification number: B41J1/24 ,  B41J1/26 ,  Y10S400/901

Abstract: A type carrier presents characters serially to a print station which includes a recording medium. A signal controlled actuator at the print station is interposed in the print character path just before the desired character arrives and is struck on an angled cam surface by the character causing the character to strike the recording medium and forcing the actuator away from the character path. A binary encoder which issues signals determinative of what character is at the print station issues as many as 3/2 . 2n unique signals with n code tracks and n + 1 transducers.

公开(公告)号：US3868557A

公开(公告)日：1975-02-25

申请号：US29738472

申请日：1972-10-13

Applicant: RCA CORP

Inventor： SCOTT JR PHILIP ROMEO

IPC: G05B19/40

CPC classification number: G05B19/40

Abstract: The windings of a stepping motor are sequentially energized to drive the motor. A tachometer on the motor shaft produces a signal indicative of motor speed and direction which is converted to a binary signal indicative of whether or not the motor is rotating. The motor is stopped by a reverse torque braking signal produced in response to the concurrent presence of a control signal and a binary signal which indicates that the motor is rotating.

Abstract translation: 步进电机的绕组依次通电以驱动电动机。 电动机轴上的转速表产生指示电动机速度和方向的信号，该信号被转换成指示电动机是否正在旋转的二进制信号。 电动机被响应于同时存在控制信号和指示电动机正在旋转的二进制信号产生的反向转矩制动信号而停止。