Side-looking sonar system

Claim 1

A SONAR SYSTEM COMPRISING: (A) VEHICLE CARRIED PORT AND STARBOARD LONG RANGE SIDELOOKING SONAR TRANSDUCER MEANS; (B) VEHICLE CARRIED PORT AND STARBOARD HIGH RESOLUTION SIDE-LOOKING SONAR TRANSDUCER MEANS; (C) A SOURCE OF SYNC SIGNALS; (D) MEANS RESPONSIVE TO SAID SYNC SIGNALS FOR PROVIDING SEQUENTIALLY OCCURRING PORT AND STARBOARD SIGNALS; (E) OSCILLATOR MEANS FOR PROVIDING A LIMITED PULSE WIDTH OUTPUT SIGNAL FOR EACH SAID PORT SIGNAL PRODUCED AND EACH SAID STARBOARD SIGNAL PRODUCED; (F) AMPLIFIER MEANS; (G) PORT AND STARBOARD RECORDING MEANS; (H) CIRCUIT MEANS OPERABLE, DURING THE PERIOD IN WHICH A PORT SIGNAL IS PROVIDED, (1) TO GATE THE OUTPUT SIGNAL TO A SELECTED ONE OF SAID PORT TRANSDUCER MEANS, WHEREUPON SAID PORT TRANSDUCER MEANS TRANSMITS AN ACOUSTIC SIGNAL TO THE SURROUNDING MEDIUM AND PROVIDES AN ECHO SIGNAL UPON RECEIPT OF ANY REFLECTED ACOUSTIC SIGNAL, AND (2) TO GATE THE ECHO SIGNAL PROVIDED BY SAID PORT TRANSDUCER MEANS TO SAID AMPLIFIER AND SAID PORT RECORDING MEANS; (I) SAID CIRCUIT BEING ADDITIONALLY OPERABLE DURING THE PERIOD IN WHICH A STARBOARD SIGNAL IS PROVIDED, (1) TO GATE THE OUTPUT SIGNAL TO SELECTED ONE OF SAID STARBOARD TRANSDUCER MEANS, WHEREUPON SAID STARBOARD TRANSDUCER MEANS TRANSMITS AN ACOUSTIC SIGNAL TO THE SURROUNDING MEDIUM AND PROVIDES AN ECHO SIGNAL UPON RECEIPT OF ANY REFLECTED ACOUSTIC SIGNAL, AND (2) TO GATE THE ECHO SIGNAL PROVIDED BY SAID STARBOARD TRANSDUCER MEANS TO SAID AMPLIFIER AND SAID STARBOARD RECORDING MEANS.