Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1985-09-05
1987-09-01
Orsino, Jr., Joseph A.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
356152, H04B 900
Patent
active
046913858
ABSTRACT:
A communication apparatus for controllably bidirectionally transferring information between a vehicle and a docking station advantageously utilizes pulsed radiant energy for effecting the information transfer. A first radiant energy emitting device and a first radiant energy detecting device is located on the vehicle and a second radiant energy emitting device and a second radiant energy detecting device is located on the docking station. A first frequency control device recieves electrical signals from the first radiant energy detecting device, produces pulse control signals having a nominal frequency which is variable within a predetermined frequency range, and controllably delivers the produced pulse control signals at the nominal frequency to the first radiant energy emitting device located on the vehicle. A second frequency control device receives electrical signals from the second radiant energy detecting device, produces pulse control signals having a nominal frequency which is variable within a predetermined frequency range, and controllably delivers the produced pulse control signals at the nominal frequency to the second radiant energy emitting device located on the docking station. The frequency of the produced pulse control signals is automatically adaptively modified in response to receiving the electrical signals.
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Caterpillar Industrial Inc.
Noe Stephen L.
Orsino Jr. Joseph A.
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