초록 ▼

A top mounted buoy signaling device for marine navigation which is selectively activated in response to a coded address signal. The buoy signaling device includes a buoy having a top mounted receiver assembly which is activated by a transmitter assembly. The receiver circuit, transmitter circuit and

A top mounted buoy signaling device for marine navigation which is selectively activated in response to a coded address signal. The buoy signaling device includes a buoy having a top mounted receiver assembly which is activated by a transmitter assembly. The receiver circuit, transmitter circuit and antennas therefor are printed on circuit boards. The transmitter circuit includes an encoder chip which is preset to provide a coded address. The coded address is utilized to modulate a carrier signal to provide a coded address signal to activate the receiver circuit. The receiver circuit includes a decoder chip which is preset to the coded address of the corresponding transmitter. A lamp driver subcircuit is enabled in response to the coded address signal. The lamp driver subcircuit includes a master timer subcircuit which maintains the driver subcircuit in an operative condition for a predetermined period of time and a flash timer subcircuit which periodically energizes a lamp to provide a flashed output. The receiver circuit may also include a power timer subcircuit to periodically energize the receiver circuit for short-interval operation and a sweep circuit to allow the receiver circuit to receive coded address signals within a predetermined bandwidth.

대표청구항 ▼

A top mounted buoy signaling device for marine navigation, comprising: remote transmitter assembly means for generating a coded address signal to selectively activate said top mounted buoy signaling device, said remote transmitter assembly means including encoder subcircuit means having a preset cod

A top mounted buoy signaling device for marine navigation, comprising: remote transmitter assembly means for generating a coded address signal to selectively activate said top mounted buoy signaling device, said remote transmitter assembly means including encoder subcircuit means having a preset coded address for generating a digitized coded address for modulating a carrier signal to provide said coded address signal; means for disposing said top mounted buoy signaling device in a marine environment; and receiver assembly means top mounted in environmentally sealed combination with said signaling device disposing means in spaced apart relation from water in the marine environment for receiving said coded address signal, said receiver assembly means including detector means for detecting said coded address signal to provide the digitized coded address embodied in said coded address signal, decoder means coupled to said detector means and having stored therein a coded address corresponding to said preset coded address of said transmitter assembly means and operative in response to a match between said stored coded address and said preset coded address for generating a valid transmission signal; and lamp driver means coupled to said decoder means and operative in response to said valid transmission signal for providing a light output in a predetermined radiation pattern for a predetermined period of time for marine navigation.