RADIO CONTROL DEVICE OF CONSTRUCTION MACHINERY
PROBLEM TO BE SOLVED: To avoid any communication barrier in a construction site surely, and also to make improvements in reliability on a device and safely during the constriction work by leaps and bounds. SOLUTION: A radio control device 1 of this construction machinery is equipped with a radio tra...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
13.10.1998
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To avoid any communication barrier in a construction site surely, and also to make improvements in reliability on a device and safely during the constriction work by leaps and bounds. SOLUTION: A radio control device 1 of this construction machinery is equipped with a radio transmitter T, diffusing and molding a control signal Sc or a primary modulated signal Sm primarily modulated with this control signal Sc on the basis of a pseudo-noise sign Spt, and diffusing a frequency spectrum and then transmitting it, while it is also equipped with a radio receiver R, inversely diffusing a receiving signal Sr to be obtained from the received wave out of the radio transmitter T on the basis of the pseudo-noise sign Spr or demodulating an inverse diffusion signal So to be obtained by this inverse diffusion, thereby securing a control signal Sco. |
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Bibliography: | Application Number: JP19970080120 |