Resources Contact Us Home

Image Number 2 for United States Patent #7245557.

A sonar emits an ultrasonic wave into the water from a transducer on the basis of a transmission signal outputted from a transmission circuit, receives an echo reflected in the water with the transducer and converts the echo into an electric signal, and displays underwater information on a display unit on the basis of an echo signal extracted by processing the electric signal. A tailing signal removing unit for removing a tailing signal and extracting only the echo signal is provided in the sonar such that a video of a surface layer fish shoal is clearly displayed on a screen of the display unit without being hidden by a video of the tailing signal.

  Recently Added Patents
Systems and methods for reducing narrow bandwidth interference contained in broad bandwidth signals
Hand-held optical probe based imaging system with 3D tracking facilities
Methods circuits apparatuses and systems for facilitating access to online content
Automatic population of feature capabilities on a communication device
Metal foil laminate, substrate for mounting LED, and light source device
Single-chain variable fragment (scFv) able to recognize and bind CD99 human protein
Electric vehicle supply equipment having a socket and a method of charging an electric vehicle
  Randomly Featured Patents
Apparatus and method for providing flight operations integrated planning and analysis tools
Snap latch filter ring for a fuel injector
Ethylene-carboxyl copolymers as drug delivery matrices
System and method for restoring a multiple checkpointed database in view of loss of volatile memory
Pillow for separating the knees
Presenting sponsored content on a mobile communication facility
Fuel cell configured with discharge passages that preheat fuel gas and prevent cross leakage
Reservation job security established image forming apparatus, control program, and recording medium
Three-dimensional shape measuring system
Inline power device detection