LandOfFree - US Patents - Listing for Communications, electrical: acoustic wave systems and devices,Echo systems,Distance or direction finding

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Scanning sonar system

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

SCR control for high current discharge circuit

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Sea bottom slope compensation apparatus

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Sensor module for trawl

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Sensor module for trawl

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Short range ultrasonic distance warning system for motor vehicle

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Signal processing method and apparatus, and sonar systems

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Signal processor for elimination of sidelobe responses and gener

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Signalling method and apparatus for enhancing echo images

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Simplicity sonic depth finder for fishing

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Simplified sector scan ultrasonic imaging system

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Simultaneous coherent and incoherent processor for sonar signals

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Single-transmit, dual-receive sonar

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Sludge topography measurement in oil tanks

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Soft-bodied, towable, active acoustic module

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Sonar apparatus

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Sonar apparatus having a steerable beam

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Sonar apparatus with means to transmit and print on alternate cy

Communications – electrical: acoustic wave systems and devices – Echo systems – Distance or direction finding

Sonar array system