A multi-directional signal assembly includes a signal display assembly having one or more display surface, and at least one signal indicia affixed to each display surface. The multi-directional display assembly comprises a buoyant construction such that the signal indicia affixed to the display surface(s) are readily visible above the surface of a body of water in which the assembly is deployed. A counterweight assembly is mounted to the signal display assembly to maintain the signal display assembly in a substantially upright, operative orientation when deployed. An illumination assembly comprising one or more illumination member is mounted to the signal display assembly, and is actuated to increase visibility of the signal display assembly while it is deployed on the surface of a body of water.

A multi-directional signal assembly includes a signal display assembly having one or more display surface, and at least one signal indicia affixed to each display surface. The multi-directional display assembly comprises a buoyant construction such that the signal indicia affixed to the display surface(s) are readily visible above the surface of a body of water in which the assembly is deployed. A counterweight assembly is mounted to the signal display assembly to maintain the signal display assembly in a substantially upright, operative orientation when deployed. An illumination assembly comprising one or more illumination member is mounted to the signal display assembly, and is actuated to increase visibility of the signal display assembly while it is deployed on the surface of a body of water.

Embodiments described herein provide a system, apparatus and methods to enable a diver to communicate more clearly with other divers or locations Embodiments process the speech to add clarity, or otherwise convert speech into an outputted form that is more intelligible e.g. so as to simulate the diver's unhindered speech. Embodiments provide hardware and software for receiving and recognizing hindered speech of a diver (e.g., speech hindered by a mouthpiece) and then augmenting the speech with generated output sounds corresponding to the intended speech sound or generating or replacing at least some of the diver's speech with synthesized words. The output sounds may be in the speaker's own voice or a synthesized voice. Embodiments may be configured to add clarity to and/or augment speech that is hindered by the wearing of a mouthpiece from a snorkel, SCUBA or other diving apparatus.

Embodiments described herein provide a system, apparatus and methods to enable a diver to communicate more clearly with other divers or locations Embodiments process the speech to add clarity, or otherwise convert speech into an outputted form that is more intelligible e.g. so as to simulate the diver's unhindered speech. Embodiments provide hardware and software for receiving and recognizing hindered speech of a diver (e.g., speech hindered by a mouthpiece) and then augmenting the speech with generated output sounds corresponding to the intended speech sound or generating or replacing at least some of the diver's speech with synthesized words. The output sounds may be in the speaker's own voice or a synthesized voice. Embodiments may be configured to add clarity to and/or augment speech that is hindered by the wearing of a mouthpiece from a snorkel, SCUBA or other diving apparatus.

A smart clothing and backpack system enables a user to perform many actions. The smart clothing includes circuitry and/or is made of a conductive material enclosed in an insulation material. The smart clothing includes a set of sensors configured to detect body information. The smart clothing includes multiple electromagnets configured to adjust a size of the smart clothing. The electromagnets are configured to have an increased attraction to make the smart clothing tighter on the body of the user. The system includes a smart backpack to communicate with the smart clothing. The smart backpack includes a Radio Frequency IDentification (RFID) reader configured to detect RFID tags on or in items within the smart backpack. Many other features are able to be implemented with the smart clothing and backpack system. The smart clothing is able to include a wetsuit configured to communicate with a surfboard and/or a backpack.

A smart clothing and backpack system enables a user to perform many actions. The smart clothing includes circuitry and/or is made of a conductive material enclosed in an insulation material. The smart clothing includes a set of sensors configured to detect body information. The smart clothing includes multiple electromagnets configured to adjust a size of the smart clothing. The electromagnets are configured to have an increased attraction to make the smart clothing tighter on the body of the user. The system includes a smart backpack to communicate with the smart clothing. The smart backpack includes a Radio Frequency IDentification (RFID) reader configured to detect RFID tags on or in items within the smart backpack. Many other features are able to be implemented with the smart clothing and backpack system. The smart clothing is able to include a wetsuit configured to communicate with a surfboard and/or a backpack.

Disclosed are breathing apparatus comprising lighting systems. Lighting modules are provided to illuminate in vertical and horizontal directions and to illuminate in a first lighting pattern if the determined status condition is a normal status condition and in a second lighting pattern if the determined status condition is an alert status condition.

A tablet-like device is configured to have a slightly negative buoyancy and to hold a sheet of waterproof synthetic paper, or another removable, waterproof recording sheet, onto which notes or messages or sketches can be recorded via a writing implement, in an underwater or marine environment, or another extreme or severe environment. Since the tablet device is configured for use of sheets of waterproof synthetic paper, divers can work with their own personal pre-printed material underwater. Further, the tablet device also has the advantages of cost savings and reduced environmental impact.

A tablet-like device is configured to have a slightly negative buoyancy and to hold a sheet of waterproof synthetic paper, or another removable, waterproof recording sheet, onto which notes or messages or sketches can be recorded via a writing implement, in an underwater or marine environment, or another extreme or severe environment. Since the tablet device is configured for use of sheets of waterproof synthetic paper, divers can work with their own personal pre-printed material underwater. Further, the tablet device also has the advantages of cost savings and reduced environmental impact.

An apparatus and method for measuring a swimmer's speed and conveying the speed to the swimmer in real time includes a plurality of ultrasonic beacons each having a transducer configured to emit ultrasonic signals in a pool or other body of water within which the swimmer is swimming. A wearable, waterproof, ultrasonic receiver worn by the swimmer, receives the ultrasonic signals and generates corresponding signal data. The receiver's microcontroller captures and uses the signal data to calculate the swimmer's position and speed in real time, and conveys this information to a wearable, waterproof, user interface device worn by the swimmer, the user interface device including a near-eye display disposed on the swimmer's goggles.