Remote control device

Details Remote control device Remote control device

1988-07-06

1990-04-10

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

375 27, 34082569, 34082572, 341176, H04Q 914

Patent

active

049164465

ABSTRACT:
A remote control device capable of substantially eliminating affection of noise and radio interference and increasing a transmission rate to improve a response speed by alternately transmitting an absolute data and a difference data. When joysticks of a transmitter are operated depending on the desired amount of operation of a control drive unit, the transmitter alternately arranges an absolute signal and a difference signal corresponding to the operation and generates a modulated control signal, which is received by a radio receiver loaded on the control drive unit. The radio receiver demodulates the control signal into an absolute data signal and a difference data signal, which are then converted into a signal of only an absolute value by a converter. Then, a drive section drives and controls the movable controls of the control drive unit in response to the signal.

REFERENCES:
patent: 4739311 (1988-04-01), Yamamoto et al.

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