Title: System for multistation remote position indication and control

Abstract: A system is provided for multistation remote position indication for remotely controlling and indicating the position of a motor driven positioning system, particularly an antenna rotor, at multiple locations utilizing a single pair of control wires to interconnect all remote control units. The system includes the generation of a symmetrical alternating polarity low frequency pulse train which is amplitude modulated by the position of the antenna, display of the antenna position by means of a polarity selective peak detecting voltmeter, and control of the antenna position by means of polarity selective current means through a synchronous detector and antenna drive motor control means.

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Inventors: Springer, Barry R. (Fountain Valley, CA, US)

Application Number: 826227
Filing Date: 1977-08-19
Publication_date: 1978-12-26
Assignee:
Primary Class(es): 318/675 318/562, 340/3.2, 340/825.59, 343/766
Other Classes:
US Patent Ref:

3043998	Jul, 1962	Lunn et al.	318/663.
3729709	Apr, 1973	Augris et al.	340/169.
3944903	Mar, 1976	Clegg	318/562.
4053818	Oct, 1977	Younkin	318/562.

Other Refs:
Primary Examiner: Dobeck, B.
Assistant Examiner:
Attorney: Rusz; Joseph E., Fine; George