Garmin International, Inc.

A sonar imaging system includes a sonar transducer mounted to a motorized steering unit configured to rotate the sonar transducer about a vertical axis. At least one processing element receives sonar return data from the sonar transducer and controls rotation of the motorized steering unit in response to user input. The at least one processing element determines, for received sonar return data, corresponding heading information and geographic position information associated with the sonar return data and associates the sonar return data with the heading information and geographic position information. Sonar return data collected during rotation of the sonar transducer through an angular range may be used to generate an accumulated image. Accumulated images may be displayed in a two-dimensional or three-dimensional view such that the underlying sonar return data is rendered at geographically correct positions and maintained in geographic alignment as a marine vessel moves.

A method for delay estimation of audio signals using an impulse response signal is provided. The method includes determining an energy envelope for the impulse response signal based on a moving average function of the impulse response signal. The method further includes determining an estimated delay of the impulse response signal based on at least one characteristic of the determined energy envelope. At least one audio signal phase is adjusted for at least one audio driver based on the estimated delay.

An audio system can include a speaker frame, a first loudspeaker mounted within the frame, a perforated mounting ring suspended from the frame, a second loudspeaker, a plurality of magnets, and a grill including a magnetic portion. The perforated mounting ring includes a central aperture in which the second loudspeaker is mounted. The magnets are disposed on the mounting ring to allow the grill to removably attach to the speaker frame through magnetic coupling with mounting ring.

A camera mounting system for a vehicle. The camera mounting system comprises a base mount configured to be coupled with an exterior surface of the vehicle. The base mount includes an interior space. The camera mounting system additionally comprises a sub-housing received within the interior space of the base mount. The sub-housing is configured to rotate within the base mount. The camera mounting system additionally comprises a camera configured to be removably mounted to the sub-housing. As such, when the camera is mounted to the sub-housing, the camera is configured to rotate in conjunction with the sub-housing. The camera mounting system additionally comprises at least one damper configured to permit a position of the camera to translate toward the sub-housing in response to an external object impacting the camera. The camera mounting system further comprises at least one attitude sensor configured to sense an orientation of the camera.

A method for phase alignment of audio signals using a first impulse response signal associated with a first frequency range and a second impulse response signal associated with a second frequency range is provided. The method includes determining a first start time for the first impulse response and a second start time for the second impulse response. The method further includes determining a delay based at least in part on a difference between the second start time and the first start time. The method further includes adjusting at least one audio signal phase for a first audio driver operating in the first frequency range with respect to a second audio driver operating in the second frequency range, where the adjusting of the at least one audio signal phase is based at least in part on the determined delay.

A handheld underwater sonar system comprising a housing and a sonar transducer housed within the housing. The sonar transducer is configured to generate a sonar signal emittable in a forward direction with respect to the housing. The sonar system additionally comprises a light source housed within the housing. The light source is configured to generate light emittable in the forward direction. The sonar system further comprises a trigger assembly associated with the housing. The trigger assembly is configured to selectively activate the sonar transducer or the light source.

A foot pedal comprising a base, a pivot assembly, and a foot platform. The pivot assembly includes an outer sheath and an inner axle assembly. The inner axle assembly comprises an outer friction ring and an inner friction ring. The pivot assembly further comprises at least one retaining mechanism configured to selectively restrict rotation of the at least one outer friction ring with respect to the outer sheath. When the at least one retaining mechanism restricts rotation of the outer friction ring, the pivot assembly is in a first configuration. When the at least one retaining mechanism does not restrict rotation of the outer friction ring, the pivot assembly is in a second configuration. The pivot assembly is configured to impart different damping forces against rotation of the foot platform based on whether the pivot assembly is in either the first configuration or the second configuration.

A marine autopilot system configured to control a marine vessel through a marine environment is disclosed herein. The marine autopilot system may obtain data of the marine environment from charts and community shared data and generate a path from a first location to a destination location in the marine environment. The marine autopilot system may control the marine vessel along the path based on the marine vessel dynamics and weather and water current conditions. Sensors may detect hazards on and in the water and object detections systems may classify the hazards. The marine autopilot system may control the marine vessel to avoid the hazards based on the location and classification of the hazards. Furthermore, sensors may be utilized to generate detailed 3D maps that change with time to dock the marine vessel at known and unknown locations.

An equine sensor system can comprise an equine sensor and a computing device. The equine sensor can include a strap removably coupled to a tail of an equine, an accelerometer configured to collect accelerometer data, and a transmitter coupled to the accelerometer configured to transmit the accelerometer data. The computing device can include a memory, a receiver configured to receive the accelerometer data, and a processor coupled to the memory and the receiver, wherein the processor is configured to determine a stride length of the equine based on the accelerometer data and positional data.