Abstract:
An exemplary embodiment of the present invention docks a waterproof audio device into a recess in a top surface of a bodyboard (or other craft used in aquatic sports or related activities). Docking the device into the body of the craft serves to protect the device from impacts and mechanical stresses. The exemplary device comprises flat panel audio transducers, for example distributed mode loudspeakers and/or piezo transducers, or other flat panel audio transducer technologies, whether now known or in the future developed. The exemplary device is adapted for generating audio frequencies to produce high fidelity audio at sound pressure levels sufficient for the high noise environment that exists in aquatic sports. In the exemplary embodiment, the audio transducer(s) are acoustically coupled into the surface of the participant&#39;s aquatic sport craft and into the body of the craft. As a result of the acoustical coupling, the surface of the board, and the body of the board, act a distributed mode loudspeaker. In the exemplary embodiment, music playback is temporarily “paused” by two-way radio voice/data communication or by submersion of the device as detected by a submersion sensor. When incoming communication stops, or the device is no longer submerged, the music continues from the point it left off. This allows the participant to hear priority messages over the music program. It also allows the participant to resume music playback after surfacing. Further, the participant&#39;s ears are not obstructed so that verbal two-way voice/data communication with other participants nearby is no longer inhibited. The exemplary device has no visual display. Rather, the user interface is simplified, announcing verbal cues when switches are depressed. For example, when the participant depresses a volume key, the exemplary device announces “Volume Up.”

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application claims priority to U.S. Provisional Patent Application Ser. No. 60/848,877 titled “Waterproof Audio Player &amp; 2-Way Voice/Data Communication Device”, filed on Oct. 3, 2006, the entire contents and disclosure of which is incorporated herein in full by reference as if stated in full herein. 
     
     FIELD OF THE INVENTION 
       [0002]    The field of the present invention is audio players and communication devices, in particular, audio players and communication devices used in sports, such as, for example, aquatic sports, and related activities. 
       BACKGROUND OF THE INVENTION 
       [0003]    Participants in sports are limited, or in some cases, may be unable, to listen to music and/or communicate as they participate in their sport. Aquatic sports present various examples. For example, bodyboarders may want to listen to music while on the ocean between wave sets. If the music device is submerged, if the music continues to play, the bodyboarder or other aquatic sports participant misses the portion of the music that is played while the device is submerged. As another example, people exercising with a paddleboard may want to listen to books-on-tape while exercising. As yet another example, people on the beach may want to use a device to listen to music and or communicate with friends who are, for example, surfing or bodyboarding. 
         [0004]    In aquatic sports, music being played by conventional devices, such as, for example, a radio, or an MP3 player, continues to play even if the user is unable to hear the music due to extreme ambient levels (for example, an ocean wave collapses), competing audio sources, or submersion. 
         [0005]    Some music devices have been made waterproof and are made to be worn by the user. Some such waterproof music devices employ ear mounted speakers fitted with water barriers. However, extreme hydrodynamic forces encountered by aquatic sport participants such as bodyboarders, surfers, kayakers, wakeboards, etc. aggressively dislodge ear mounted speakers. Once dislodged these music players suffer degraded fidelity due to either partial or total interruption of the water barrier. Ear-mounted speakers obscure the wearer&#39;s ability to hear external sound and environmental cues such as waves, nearby surfers, and directions from a lifeguard and may prevent and/or interfere with normal conversation between participants and others nearby, for example other bodyboarders, kayaks, and surfers. 
         [0006]    Loud speakers of standard design work poorly in aquatic environments. Their concave shape easily fills with water and stop functioning when covered with water. 
         [0007]    Some waterproof music devices have been made to be secured to the surface of an aquatic sports device. Such devices create a high profile with respect to the surface of the aquatic sports device that tends to interfere with comfort and/or movement by the aquatic sports participant. 
         [0008]    Aquatic sport participants often need a high degree of mobility. A device that uses cords, wires, straps, harnesses etc. to transmit sounds to the user, and/or to secure the device to the user and/or to the aquatic sports device may limit and/or interfere with the participant&#39;s mobility. 
         [0009]    Further, aquatic sports participants may want to share music programs in real time or engage in two-way voice/data communication with others remotely located. For example, a person on the beach may want to communicate with a bodyboarder in the water. Or a bodyboard instructor, (on his bodyboard), may want to communicate with a student on a separate bodyboard. 
         [0010]    Merely placing a two-way radio or digital music player into a waterproof bag or container would not provide sufficient audio levels under some circumstances. For example, audio levels traveling through the waterproof bag or container are attenuated, making it difficult to hear the audio in high ambient noise situations. 
         [0011]    Further, merely placing a two-way radio or digital music player into a waterproof bag or container requires the aquatic sports participant to manipulate whatever standard controls and/or view displays while the device is in the waterproof bag or container. Trying to manipulate complex controls and view displays on devices that are contained in a bag may be difficult, especially if the aquatic sports participant&#39;s attention is focused on engaging in the relevant sport. Further, when a waterproof bag or container contacts cold water, internal humidity may condensate on the device which can damage sensitive electronic devices and/or may compound the difficulty of manipulating complex controls and/or viewing displays on devices enclosed in such a waterproof bag or container. Further, the aquatic sports participant may be distracted by manipulating controls and/or viewing displays, and may fail to recognize a possible dangerous situation such as an approaching surfer. 
         [0012]    Further, terrestrial-based digital music players and two-way radios may be damaged by extremes of shock, vibration, and foreign matter ingression prevalent in aquatic sports. 
         [0013]    Accordingly, an aquatic sports participant needs a unique music and two-way communication device that is capable of operating in such challenging environments without interfering with the aquatic sports participants&#39; mobility and concentration. 
       SUMMARY OF THE INVENTION 
       [0014]    An exemplary embodiment of the present invention docks a waterproof audio device into a recess in a top surface of a bodyboard (or other craft used in aquatic sports or related activities). Docking the device into the body of the craft serves to protect the device from impacts and mechanical stresses. 
         [0015]    The exemplary device comprises a flat panel audio transducer acoustically coupled to a flat panel audio interface panel. 
         [0016]    The exemplary device comprises flat panel audio transducers, for example distributed mode audio transducers and/or piezo transducers, and/or other flat panel audio transducer technologies, whether now known or in the future developed. 
         [0017]    The exemplary device is adapted for generating audio frequencies to produce high fidelity audio at sound pressure levels sufficient for the high noise environment that exists in aquatic sports. In the exemplary embodiment, the audio transducer(s) are acoustically coupled into the surface of the participant&#39;s aquatic sport craft and into the body of the craft. As a result of the acoustical coupling, the surface of the board, and the body of the board, act as a distributed mode loudspeaker. 
         [0018]    In the exemplary embodiment, music playback is temporarily “paused” by two-way radio voice/data communication or by submersion of the device as detected by a submersion sensor. When incoming communication stops, or the device is no longer submerged, the music continues from the point it left off. This allows the participant to hear priority messages over the music program. It also allows the participant to resume music playback after surfacing. Further, the participant&#39;s ears are not obstructed so that verbal two-way voice/data communication with other participants nearby is no longer inhibited. The exemplary device has no visual display. Rather, the user interface is simplified, announcing verbal cues when switches are depressed. For example, when the participant depresses a volume key, the exemplary device announces “Volume Up.” 
     
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0019]    These and other features of the present invention are more fully set forth in the following description of exemplary embodiments of the invention. The description is presented with reference to the accompanying drawings in which: 
           [0020]      FIG. 1  depicts a cross-sectional view of an exemplary audio device docked into a cradle that is mounted into a bodyboard in an exemplary embodiment of the present invention; 
           [0021]      FIG. 2  depicts a perspective view of a human aquatic sport participant riding on a bodyboard in which the exemplary device of the exemplary embodiment of the present invention is docked; 
           [0022]      FIG. 3  depicts a cross-sectional exploded view of the device of the exemplary described embodiment of the present invention adapted for docking into an exemplary cradle in a body of a craft the cradle using an exemplary shaft and an exemplary quarter-turn fastener; 
           [0023]      FIG. 4  depicts a perspective view of an exemplary recess in a body of a craft in an exemplary embodiment of the present invention; 
           [0024]      FIG. 5  depicts a side plan view of the exemplary device of the exemplary embodiment of the present invention; 
           [0025]      FIG. 6  depicts a top plan view of the exemplary device of the exemplary embodiment of the present invention; 
           [0026]      FIG. 7  depicts an exploded perspective view of an exemplary user interface panel, an exemplary upper housing component, and an exemplary rubber ring of the exemplary device of the present invention; 
           [0027]      FIG. 8  depicts a perspective view of the exemplary device of the present invention being recessed and docked into an exemplary tow raft; 
           [0028]      FIG. 9  depicts a perspective view of the exemplary device of the present invention being recessed and docked into an exemplary surfboard; 
           [0029]      FIG. 10  depicts a perspective view of the exemplary device of the present invention being recessed and docked into an exemplary paddle board; 
           [0030]      FIG. 11  depicts a perspective view of the exemplary device of the present invention being recessed and docked into an exemplary wind surfing board; 
           [0031]      FIG. 12  depicts a perspective view of the exemplary device of the present invention being recessed and docked into an exemplary kayak; 
           [0032]      FIG. 13  is a high-level block diagram depicting exemplary components of exemplary device  1  in the exemplary embodiment of the present invention; 
           [0033]      FIG. 14  is a graph that depicts results of empirical tests regarding audio levels produced by exemplary device of the exemplary embodiment of the present invention; 
           [0034]      FIG. 15  depicts a cross-sectional view of a top-mounted device, cradle and form in an alternative embodiment of the present invention; 
           [0035]      FIG. 16  depicts an exploded cross-sectional view of a top-mounted device, cradle and form in an alternative embodiment of the present invention; 
           [0036]      FIG. 17  depicts a cross-sectional view of a top-mounted device in a further alternative embodiment of the present invention; and 
           [0037]      FIG. 18  depicts a perspective view of an alternative embodiment in which a plurality of transducers are imbedded in a bodyboard underneath the top surface of the board. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0038]      FIG. 1  depicts a cross-sectional view of a portion of an exemplary embodiment of the present invention. As depicted in  FIG. 1 , the exemplary embodiment of the present invention comprises an exemplary waterproof audio device  1  that comprises an exemplary waterproof, watertight, housing  100 . 
         [0039]    The exemplary waterproof housing  100  of the exemplary embodiment comprises an exemplary lower housing component  10  and an exemplary upper housing component  11 . In the exemplary embodiment, the exemplary lower housing component  10  and the exemplary upper housing component  11  are joined together and sealed through ultrasonic bonding at a sealed joint  101 . It will be understood by someone with ordinary skill in the art that the description herein of ultrasonic bonding of the exemplary lower housing component  10  and the exemplary upper housing component  11  is exemplary and non-limiting. 
         [0040]    It will be understood by someone with ordinary skill in the art that other methods of joining and sealing the upper housing component  11  with the lower housing component  10  could be used without departing from the spirit of the present invention. For example, the exemplary lower housing component  10  could be joined with and sealed to the exemplary upper housing component  11  using a rubber seal, such as, for example, exemplary rubber ring  7 , and/or mechanical fasteners. Other permanent and non-permanent joining and sealing methods are possible, whether now known or in the future discovered. 
         [0041]    Further, it will be understood by someone with ordinary skill in the art that the description of two housing components  10  and  11  is illustrative and non-limiting. Rather, in alternative embodiments, it would be possible to provide a single-component housing. 
         [0042]    The exemplary device  1  is hardened against extremes in water pressure, temperature, shock, vibration, and foreign matter intrusion that are typical found in aquatic sport environments. The exemplary device  1  meets environmental specifications of at least International Standard CEI/IEC 529: 1989:IPX7. 
         [0043]    It will be understood by someone with ordinary skill in the art that the description herein of the exemplary device  1  as meeting the specific environmental specifications of International Standard CEI/IEC 529: 1989:IPX7 is exemplary and non-limiting. In alternative embodiments of the present invention, the exemplary device may be housed in a housing that is not waterproof, watertight, submersible or otherwise ruggedized against environmental elements. In some alternative embodiments, the housing may be sealed to resist dust entering the interior of the housing. 
         [0044]    Exemplary lower housing component  10  comprises an exemplary cylindrical shaft  45  attached to, and extending from an exemplary docking recess  10   b  in the bottom surface  10   a  of exemplary lower housing component  10 . 
         [0045]    The exemplary embodiment further comprises an exemplary body  50  of material. In the exemplary embodiment, the exemplary body  50  comprises a bodyboard of common design. An exemplary bodyboard  70  of the exemplary embodiment of the present invention is depicted in  FIG. 2 . It will be understood by someone of ordinary skill in the art that the description herein of the exemplary body  50  comprising an exemplary bodyboard  70  as depicted in  FIG. 2  is illustrative and non-limiting. 
         [0046]    In alternative embodiments, a body  50  may comprise a float tube or tow raft  55  an example of which is depicted in  FIG. 8 , a surfboard  56  of common design an example of which is depicted in  FIG. 9 , a paddle board  57  of common design an example of which is depicted in  FIG. 10 , a windsurfer board  58  of common design an example of which is depicted in  FIG. 11 , a kayak  59  of common design an example of which is depicted in  FIG. 12 , or other crafts, apparatus or bodies of material. It will be understood by someone with ordinary skill in the art that the aforementioned integrations of the exemplary device as shown in  FIGS. 8 ,  9 ,  10 ,  11 , and  12  are illustrative only. Rather, integrations into other platforms, crafts and/or apparatus could be provided without departing from the spirit of the present invention. 
         [0047]      FIG. 8  depicts a perspective view of the exemplary device  1  being recessed and docked into an exemplary tow raft  55 . The exemplary tow raft  55  depicted in  FIG. 8  is illustrative, and one of numerous such designs that can be used to float a person and/or can be towed behind a boat. 
         [0048]      FIG. 9  depicts a perspective view of the exemplary device  1  being recessed and docked into an exemplary surfboard  56 . The exemplary surfboard  56  depicted in  FIG. 9  is illustrative and non-limiting and is not intended to depict a specific type of surfboard. Rather, it will be understood by someone with ordinary skill in the art that there are a multitude of geometries, materials, and optimizations of surfboards. The exemplary device  1  could be recessed and/or docked and/or bonded into or onto any of such surfboard configurations without departing from the spirit of the present invention. 
         [0049]      FIG. 10  depicts a perspective view of the exemplary device  1  being recessed and docked into an exemplary paddle board  57 . Exemplary paddle board  57  is of the type typically used for swim training and/or pool exercising and its depicting in  FIG. 10  is illustrative and non-limiting and is not intended to depict a specific type or configuration of paddle board. Rather, it will be understood by those with ordinary skill in the art that there are a multitude of geometries, materials, and optimizations of paddle boards. The exemplary device  1  could be recessed and/or docked and/or bonded into or onto any of such paddle board configurations without departing from the spirit of the present invention. 
         [0050]      FIG. 11  depicts a perspective view of the exemplary device  1  being recessed and docked into an exemplary wind surfing board  58 . Depicting exemplary wind surfing board  58  in  FIG. 11  is illustrative and non-limiting and is not intended to depict a specific type or configuration of wind surfing board. Rather, it will be understood by those with ordinary skill in the art that there are a multitude of geometries, materials, and optimizations of wind surfing boards. The exemplary device  1  could be recessed and/or docked and/or bonded into or onto any of such wind surfing board configurations without departing from the spirit of the present invention. 
         [0051]      FIG. 12  depicts a perspective view of the exemplary device  1  being recessed and docked into an exemplary kayak  59 . Depicting exemplary kayak  59  in  FIG. 12  is illustrative and non-limiting and is not intended to depict a specific type or configuration of wind surfer. Rather, it will be understood by those with ordinary skill in the art that there are a multitude of geometries, materials, and optimizations of kayaks. The exemplary device  1  could be recessed and/or docked and/or bonded into or onto any of such kayak configurations without departing from the spirit of the present invention. 
         [0052]    It will be understood that the above-described examples are illustrative and non-limiting. The exemplary device  1  could be docked in various other crafts, including, by way of non-limiting example, a recess in an arm of a beach chair, cooler or other furniture, in a recess in a dashboard of a boat or car, or in a recess in the surface of a snowboard or wakeboard. The exemplary device  1  could be disengaged from one craft and docked into another craft, or even used independently. 
         [0053]    Returning with reference to  FIG. 1 , the exemplary body  50  of the exemplary embodiment further comprises an exemplary body top surface  51 . The exemplary body  50  of the exemplary embodiment further comprises an exemplary recess  71 . 
         [0054]      FIG. 4  depicts an exploded perspective view of the exemplary embodiment of the device  1  removed from exemplary cradle  2 , which has been removed from exemplary recess  71  in exemplary body top surface  51  of exemplary body  50  of bodyboard  70 . In the exemplary embodiment, the exemplary recess  71  in exemplary body  50  is cylindrical in shape. Exemplary recess  71  comprises a floor  71   a  and an interior wall  71   b . However, as will be understood by someone with ordinary skill in the art, the description herein of a cylindrical shape of exemplary recess  71  is illustrative and non-limiting. Rather, other shapes of recess  71  could be used without departing from the spirit of the present invention. 
         [0055]    Continuing with reference to  FIG. 1 , an exemplary cradle  2  is seated within exemplary recess  71 . In the exemplary embodiment, an exterior  2   c  (see element  2   c  in  FIG. 3 ) of exemplary cradle  2  is bonded into recess  71 . 
         [0056]    With reference to  FIG. 3 , in the exemplary embodiment, exemplary cradle  2  comprises an exemplary quarter turn fastener  40  attached to the bottom surface  2   a  of the well (or cradle recess)  2   b  of the cradle  2 . As will be explained further below, exemplary quarter turn fastener  40  is used to engage exemplary cylindrical shaft  45 , which is attached to, and extending from docking recess  10   b  in the bottom surface  10   a  of exemplary lower housing component  10  of exemplary housing  100  (see element  100  in  FIG. 1 ). 
         [0057]    In the exemplary embodiment, exemplary housing  100  depicted in  FIG. 1  is cylindrical in shape and comprises a cylindrical shaft  100   a  as depicted in  FIGS. 4 and 7 . 
         [0058]    Returning with reference to  FIG. 1 , in the exemplary embodiment, exemplary housing  100  further comprises an exemplary exterior rim  77  around the upper edge of the circumference (perimeter) of exemplary upper housing component  11 . In the exemplary embodiment, exemplary rubber ring  7  surrounds exemplary exterior rim  77  of exemplary upper housing component  11 . As depicted in  FIG. 5 , exemplary rubber ring  7  extends over and encircles a portion of exemplary user interface panel  5 , and an upper portion of exemplary upper housing component  11 .  FIG. 6  depicts a top plan view of exemplary rubber ring  7  encircling the exemplary exterior rim (not visible) of the housing  100  (not visible). In the exemplary embodiment, exemplary rubber ring  7  protects the exemplary waterproof device  1 , and also couples acoustic energy from the exemplary device  1  into the exemplary body  50 . 
         [0059]    Returning with reference to  FIG. 1 , in the exemplary embodiment, exemplary housing further comprises an exemplary user interface panel  5 . In the exemplary embodiment, exemplary user interface panel  5  is bonded by adhesives to an exemplary top surface  78  of exemplary upper housing component  11 .  FIG. 7  depicts an exploded perspective view of exemplary rubber ring  7 , exemplary user interface panel  5 , exemplary acoustic interface panel  8 , and exemplary upper housing component  11 . In the exemplary embodiment, exemplary user interface panel  5  comprises a thin polyester material that acts as a sound board for acoustic energy. It will be understood by someone with ordinary skill in the art that other materials and geometries could be used to form an interface panel that would conduct acoustic energy without departing from the spirit of the present invention. That is, the description of the exemplary embodiment comprising a substantially cylindrical housing is illustrative and non-limiting; other shapes could be used without departing from the spirit of the present invention. 
         [0060]    As depicted in  FIG. 6 , exemplary user interface panel  5  comprises exemplary graphic elements  30 ,  31 ,  32 ,  33 ,  34 ,  35 , and  36  that define tactile user switch locations. Exemplary user interface panel graphic element  30  comprises a tactile user switch location for activating mobile two-way communication with another device. Exemplary user interface panel graphic element  31  comprises a tactile user switch location for reducing the volume of audio sound. Exemplary user interface panel graphic element  32  comprises a tactile user switch location for navigating to the previous audio selection. Exemplary user interface panel graphic element  33  comprises a tactile user switch location for pausing play of a current audio selection. Exemplary user interface panel graphic element  34  comprises a tactile user switch location for navigating to the next audio selection. Exemplary user interface panel graphic element  35  comprises a tactile user switch location for increasing the volume of audio sound. Exemplary user interface panel graphic element  36  comprises a tactile user switch location for party line communication. 
         [0061]    It will be understood by someone with ordinary skill in the art that the description herein of the exemplary graphic elements  30 ,  31 ,  32 ,  33 ,  34 ,  35 , and  36  is illustrative and non-limiting; other graphic elements, switch configurations, materials, thickness, and geometries of exemplary user interface  5  are possible without departing from the spirit of the present invention. 
         [0062]    In the exemplary embodiment, the bonds at the sealed joint  101  between exemplary upper housing component  11  and exemplary lower housing component  10 , and between exemplary user interface panel  5  and exemplary inner rim  78  of exemplary upper housing component  11  hermetically seal within the exemplary housing  100 , various audio and communications related components described further below. 
         [0063]    Returning to  FIG. 1 , the exemplary waterproof audio device  1  of the exemplary embodiment of the present invention further comprises at least one exemplary distributed mode audio transducer  12  retained within exemplary waterproof housing  100  by retaining bracket  14 . In the exemplary embodiment, distributed mode audio transducers such as NXT™ exciters are used. However, it will be understood by someone with ordinary skill in the art that the description of use of NXT™ exciters is illustrative and non-limiting. In alternative embodiments, other types of distributed mode audio transducers could be used without departing from the spirit of the present invention. Further, in other alternative embodiments, pistonic transducers, flat panel piezo transducers, or other audio transducers or systems capable of generating or producing audio frequencies, whether now known or in the future discovered, could be used without departing from the spirit of the present invention. 
         [0064]    Continuing with reference to  FIG. 1 , the exemplary waterproof audio device  1  of the exemplary embodiment of the present invention further comprises an exemplary printed circuit board  18 , an exemplary inductive battery charger  16  and exemplary rechargeable batteries  15 . In the exemplary embodiment, exemplary inductive battery charger  16  is connected to, and is adapted for charging, exemplary rechargeable batteries  15 . 
         [0065]    In the exemplary embodiment, exemplary rechargeable batteries  15  provide electrical power to various electrical components described further below. In the exemplary embodiment, rechargeable batteries  15  comprise rechargeable lithium batteries. It will be understood by someone with ordinary skill in the art that the use of rechargeable lithium batteries in the exemplary embodiment is illustrative and non-limiting; other battery technologies and methods of supplying power, whether now known or in the future discovered, could be used without departing from the spirit of the present invention. For example, in alternative embodiments, by way of non-limiting example, nickle-metal-hydride, nickel-cadmium, replaceable alkaline, or photovoltaic (solar), could be used without departing from the spirit of the present invention. In yet another embodiment, a dock (not shown) adapted for accepting the device  1  could be used that would connect the docked device  1  to a personal computer (“PC”) or other device USB port; the USB port would be adapted for downloading music files to the alternative device music file download and battery charging. 
         [0066]    In the exemplary embodiment, as depicted in  FIG. 1 , exemplary inductive battery charger  16  is located in the bottom of the lower housing  10 . When exemplary inductive battery charger  16  is positioned in proximity to an appropriate alternating current (“AC”) electrical field, such as a desktop docking bay, a current is induced into exemplary inductive battery charger  16 ; exemplary inductive battery charger  16  will then charge exemplary rechargeable batteries  15 . In the exemplary embodiment, printed circuit board  18  would comprise exemplary battery charging circuitry, exemplary battery power monitoring circuitry, and power conditioning circuitry. 
         [0067]    In the exemplary embodiment, exemplary printed circuit board  18  comprises exemplary circuitry to facilitate all functions of exemplary device  1 , including, but not limited to, exemplary microprocessor circuitry, exemplary microcontroller circuitry, and exemplary dedicated circuitry for controlling exemplary radio transceivers, exemplary receivers, exemplary decoders, exemplary digital interfaces, and exemplary user interfaces; exemplary printed circuit board  18  comprises exemplary circuitry for facilitating music upload and download, audio playback, signal processing, power control, and manipulation of all audio and data sources. Further, exemplary printed circuit board  18  comprises exemplary memory mass storage devices to facilitate playback of stored digitally encoded music files (e.g., MP3, WMA, etc). It will be understood by someone with ordinary skill in the art that description herein of specific types of digitally encoded music files, such as MP3, WMA, etc., is illustrative and non-limiting; other types of digital encoding, whether now known or in the future discovered, could be used without departing from the spirit of the present invention. 
         [0068]    In the exemplary embodiment, exemplary printed circuit board  18  is mounted to exemplary lower housing component  10  using exemplary screws  28  and exemplary elastomeric isolators  27 . Exemplary elastomeric isolators  27  protect exemplary printed circuit board  18  from shock, vibration and acoustic energy. 
         [0069]    Continuing with reference to  FIG. 1 , the exemplary waterproof audio device  1  of the exemplary embodiment of the present invention further comprises exemplary data antenna  23 . In the exemplary device  1 , exemplary data antenna  23  is mounted on exemplary printed circuit board  18 . In the exemplary device  1 , exemplary data antenna  23  is adapted for transmitting and receiving high speed digital data via an exemplary wireless data link, such as, for example, a BLUETOOTH® wireless data link. In the exemplary embodiment, the exemplary BLUETOOTH® wireless data link comprises an exemplary BLUETOOTH® transceiver imbedded in exemplary printed circuit board  18 . In the exemplary embodiment, the exemplary BLUETOOTH® wireless data link facilitates uploading and downloading of music programs by the user, software for operating exemplary device  1 , verbal feedback ques, remote control commands, digital audio, and various software algorithms and commands. Additionally, in the exemplary embodiment, the BLUETOOTH® wireless data link can be used to facilitate two-way voice/data communication between exemplary compatible devices, as well as other devices such as cell phones, PDA&#39;s (Personal Data Assistant), and wireless hubs. 
         [0070]    It will be understood by someone with ordinary skill in the art that use in the exemplary embodiment of BLUETOOTH® wireless technology is illustrative and non-limiting; other wireless protocols whether now known or in the future discovered, such as, for example, 802.11, and other types of devices and messages could be used without departing from the spirit of the present invention. Alternatively, wired methods of data transfer, such as, for example, USB, could also be used without departing from the spirit of the present invention. 
         [0071]    Continuing with reference to  FIG. 1 , the exemplary waterproof audio device  1  of the exemplary embodiment of the present invention further comprises exemplary radio signal antenna  21  is adapted for receiving common AM and FM broadcast radio signals. In the exemplary embodiment, exemplary radio signal antenna  21  is further adapted for transmitting and receiving music program to/from neighboring devices that are similar to exemplary device  1 . Accordingly, with a plurality of specimens of exemplary device  1 , groups of users can all listen to (share) a single user&#39;s music program in real time. 
         [0072]    In the exemplary embodiment, exemplary radio signal antenna  21  is further adapted for transmitting and receiving Radio Broadcast Data System (RBDS) signals for configuration, command, and remote control of exemplary device  1 . In the exemplary embodiment, an exemplary AM, FM, and RBDS transceiver connected to exemplary radio signal antenna  21  is imbedded in exemplary printed circuit board  18 . 
         [0073]    Continuing with reference to  FIG. 1 , the exemplary waterproof audio device  1  of the exemplary embodiment of the present invention further comprises exemplary digital/satellite signal antenna  22 . In the exemplary embodiment, exemplary digital/satellite signal antenna  22  is adapted for receiving digital music program from both terrestrial and Earth satellite sources. In the exemplary device  1 , XM™ satellite radio would be used. In the exemplary embodiment, an exemplary digital music transceiver corresponding to exemplary digital/satellite signal antenna  22  is imbedded in exemplary printed circuit board  18 . It will be understood by someone with ordinary skill in the art that use in the exemplary embodiment of XM™ is illustrative and non-limiting; other wireless protocols, frequencies, modulation techniques and types of messages could be used without departing from the spirit of the present invention. 
         [0074]    Continuing with reference to  FIG. 1 , the exemplary waterproof audio device  1  of the exemplary embodiment of the present invention comprises an exemplary two-way communication antenna  20 . In the exemplary embodiment, exemplary two-way communication antenna  20  is adapted for receiving and transmitting two-way voice and communications and data messaging. In the exemplary embodiment, Family Radio Service (FRS) protocol is used for two-way voice and data messaging. In the exemplary embodiment, an exemplary FRS transceiver corresponding to exemplary two-way communication antenna  20 , is imbedded in exemplary printed circuit board  18 . In the exemplary embodiment, the exemplary FRS transceiver would be operable to communicate using the Family Radio Service (FRS) portion of the radio frequency spectrum. The FRS is defined by the 47 Code of Federal Regulation (CFR), section 95, which is incorporated herein for all purposes by reference. 47 CFR section 95 governs personal telecommunications. The FRS radio spectrum is administered by the Federal Communications Commission (FCC). Frequency of FRS operation is between 462.5625 MHz and 467.7125 MHz. FRS is used primarily for voice communications. However, communication of tones and data is authorized. 
         [0075]    In one embodiment, the waterproof device  1  would comprise a two-way FRS radio that would be operated in a “slave mode” to facilitate two-way voice communication while relieving the user of the task channel and privacy code assignments. In such an embodiment, the waterproof device  1  would enter a “slave mode” that would listen for, and that would synchronize to a “master” radio. Subsequently, the waterproof device  1 , in “slave mode” would follow the master radio&#39;s channel and code commands. 
         [0076]    In another embodiment, the waterproof device  1  would comprise a two-way FRS radio operated in a “party line” mode, whereby all local or nearby like devices would be capable of, and adapted for, monitoring and communicating with each other. In such a party line communication embodiment, the waterproof device  1  would enter/exit the “party line” mode with the touch of one button. In such an embodiment, the “party line” channel and code assignment would be fixed and hidden from the user. 
         [0077]    It will be understood by someone with ordinary skill in the art that there are advantages to using transceivers operable to communicate within the FRS spectrum for aquatic sports communications. One advantage is that the operable FRS frequency range (between 462.5625 MHz and 467.7125 MHz) facilitates the use of small antenna and other components due to the short wavelength at these frequencies. 
         [0078]    Another advantage of using FRS-capable transceivers is that even though the propagation of these frequencies are predominately “line-of-sight”, the propagation of these frequencies nevertheless provides for some diffraction around landscapes and fixed objects. Further, FRS utilizes an FM (F3E narrow-band) modulation scheme which provides clear reception. The Effective Radiated Power (ERP) for F3E narrow-band is 0.500 watts; this ERP facilitates a range of approximately 2 miles, but does not interfere with third-party communications systems that are far away. 
         [0079]    Another advantage of using FRS-capable transceivers is that a large variety of hand-held FRS units are commercially available and are compatible for use with this invention. Further, due to the large volume market of FRS units, FRS-compatible components and technology are inexpensive. 
         [0080]    Another advantage of using FRS-capable transceivers is that FRS provides 14 channels and 38 privacy codes. The high number of channels and privacy codes provides a large number of unique combinations so that a large number of users may operate privately in the same area at the same time. 
         [0081]    Even though FRS would be used in the exemplary embodiment, it will be understood by someone with ordinary skill in the art that other frequency bands, such as, by way of non-limiting example, the General Mobile Radio Service (GMRS), could be used without departing from the spirit of the present invention. 
         [0082]    Continuing With reference to  FIG. 1 , the exemplary distributed mode audio transducer  12  is adapted for generating high volume audio sound waves. As depicted in  FIG. 1 , exemplary distributed mode audio transducer  12  is retained in exemplary upper housing component  11  with an exemplary retaining bracket  14 . In the exemplary embodiment, exemplary retaining bracket  14  is secured to exemplary upper housing component  11  by “heat-staking” protuberances  17  on upper housing  11  that extend through retaining bracket  14 . In the exemplary embodiment, exemplary distributed mode audio transducer  12  comprises a top  12   a . In the exemplary embodiment, top  12   a  of exemplary distributed mode audio transducer  12  is mechanically bonded with adhesives to a bottom  8   a  of an exemplary acoustic interface panel  8 . 
         [0083]    Another embodiment of the exemplary device  1  would include one or more pistonic voice coils of common design bonded to the acoustic interface panel  8 . 
         [0084]    Yet another embodiment would use two or more voice coil audio transducers bonded to a single, or split, acoustic interface panel  8 . In such an embodiment, the dual audio transducers would facilitate true stereo playback. 
         [0085]    In a still further embodiment of the present invention, one or more distributed mode audio transducers  12  (“exciters”) or other flat panel audio transducers are mounted directly to (on top of; above) the top surface  51  of a body  50  to acoustically drive the body  50 . That is, in such an embodiment, the surface  12  of the transducers  12  would be mounted in contact with the top surface  51  of body  50 . In such an embodiment, mounting one or more exciters directly to the top surface  51  of a body  50  would provide audio performance while extending only a minimal height above the top surface  51  of the body  50 , and would not require a large recess to be opened into the body  50  to receive a device  1 ′ (see element  1 ′ depicted in  FIG. 18 ). In such an embodiment, device  1 ′ (see element  1 ′ depicted in  FIG. 18 ) would not necessarily comprise any audio transducer enclosed within its housing  10 - 11 . 
         [0086]    Yet still another embodiment of the present invention would comprise one or more flat panel audio transducers mounted to a top surface  51  and/or to a bottom  51 ′ surface (shown, for example, in  FIG. 18 , and will be understood by someone with ordinary skill in the art to refer to the bottom, underneath surface of body  50 ) of body  50 . In such an embodiment, the flat panel audio transducers provide enhanced wide fidelity music playback. 
         [0087]    Continuing with reference to  FIG. 1 , in the exemplary embodiment, a top surface  8   b  of exemplary acoustic interface panel  8  is adhesively bonded to a bottom surface  5   a  of exemplary user interface panel  5 . In the exemplary embodiment, by adhesively bonding the top surface  8   b  of exemplary acoustic interface panel  8  to the bottom surface  5   a  of exemplary user interface panel  5 , audio sound waves generated by audio transducer  12  are conducted to acoustic interface panel  8  which, in turn, conducts the audio sound waves to exemplary user interface panel  5 , which causes radiation of the audio sound into the air. 
         [0088]    In the exemplary embodiment, exemplary user interface panel  5  is also bonded by adhesives to exemplary upper housing component  11 . In turn, audio energy entering acoustic interface panel  5  is propagated through exemplary upper housing component  11  to exemplary rubber ring  7  and then into the body  50 . Further, sound waves are conducted through the body of audio transducer  12  and propagate through exemplary upper housing component  11 , exemplary lower housing component  10 , and exemplary cradle  2 , into the body  50 . 
         [0089]    In an alternative embodiment, it would be possible to provide at least a second flat panel transducer housed within housing  100  that is acoustically coupled to lower housing component  10  for stronger acoustic coupling into body  50 . 
         [0090]    In the exemplary device  1 , printed circuit board  25  comprises circuitry for interfacing with, and connected to, a plurality of exemplary tactile user switches  47 ; exemplary tactile user switches  47  underlie corresponding exemplary graphic elements  30 ,  31 ,  32 ,  33 ,  34 ,  35 , and  36  depicted in  FIG. 6  on exemplary user interface panel  5 . When exemplary tactile user switches  47  are pressed, simple audio tones indicate actuation of the corresponding switch. Special user-defined sound effects and speech can be used to indicate switch actuation or device status changes. 
         [0091]    In the exemplary device  1 , printed circuit board  25  further comprises circuitry for interfacing with, and connected to, an exemplary submersion sensor  6 , and an exemplary microphone  26 . When the exemplary device  1  is fully submerged in water, the submersion sensor  6  and corresponding circuitry in exemplary printed circuit board  25  automatically pauses playback of music program. When the submersion sensor  6  is no longer underwater, the submersion sensor  6  and corresponding circuitry in exemplary printed circuit board  25  automatically resumes music program playback at the point where playback was paused upon submersion. This is done in the exemplary embodiment by resuming feeding audio signals from the audio source to the audio transducer  12 . 
         [0092]    In the exemplary embodiment, exemplary microphone  26  is adapted to receive voice input; exemplary microphone  26  and corresponding microphone circuitry in exemplary printed circuit board  25  are connected to the exemplary two-way FRS transceiver imbedded in exemplary printed circuit board  18  as previously mentioned above. In the exemplary embodiment, exemplary microphone  26  and corresponding microphone circuitry in exemplary printed circuit board  25 , exemplary two-way communication antenna  20 , and the exemplary two-way FRS transceiver imbedded in exemplary printed circuit board  18  would be adapted for working together for receiving and transmitting two-way voice and communications and data messaging. 
         [0093]    In the exemplary embodiment, a microcontroller (e.g., element  204  depicted in  FIG. 13 ) is programmed to monitor the incoming channel of the two-way transceiver. When the microcontroller detects incoming audio signals over the incoming channel of the two-way transceiver, the microcontroller is programmed to pause audio playback through the audio transducer (e.g., element  12  depicted in  FIG. 1 ) to, and switch the audio source for, the feed of audio signals to the audio transducer (e.g., element  12  depicted in  FIG. 1 ) to the incoming channel of the two-way transceiver. 
         [0094]    With reference to  FIGS. 1 and 3 , mechanical retention of the exemplary device  1  to exemplary cradle  2  is achieved via engagement of exemplary cylindrical shaft  45  extends from the recess  10   b  located in the bottom surface  10   a  of exemplary lower housing component  10 , and exemplary quarter turn fastener  40  located in the center of exemplary cradle  2 .  FIG. 3  is a partially exploded cross-sectional view of the exemplary device  1 , exemplary cradle  2 ,  1  and exemplary recess  71  in body  50 . Exemplary device  1  is docked and mechanically fastened in the cradle  2  by inserting exemplary lower housing component  10  into exemplary cradle  2 , and rotating exemplary lower housing component  10  of the exemplary device  1  ninety degrees clockwise until further rotation is stopped. When the exemplary device  1  is fastened into exemplary cradle  2  (i.e., when exemplary device  1  is docked in exemplary cradle  2 ), exemplary rubber ring  7  contacts surface  51  of body  50 . 
         [0095]    To disengage the exemplary device  1  from exemplary cradle  2 , the process is reversed, rotating exemplary lower housing component  10  of the exemplary device  1  counterclockwise until exemplary device  1  is freed from exemplary cradle  2 . 
         [0096]    It will be understood by someone of ordinary skill in the art that the use in the exemplary embodiment of exemplary cylindrical shaft  45  located in the recess  10   b  in the bottom surface  10   a  of exemplary lower housing component  10 , to engage exemplary quarter turn fastener  40  located in the center of exemplary cradle  2  is illustrative and non-limiting. Various alternatives could be used to fasten exemplary device  1  in body  50  without departing from the spirit of the invention. For example, a TY-WRAP™ cable tie fastened to the bottom of exemplary device  1  could be threaded through a whole in the bottom of recess  71  and fastened with a washer on the opposite side of body  50 . As a further alternative, the exterior circumference of lower housing component  10  could be threaded to screw into corresponding threading of the interior walls of recess  71 , or of the interior walls of a cradle bonded in recess  71 , or a threaded shaft that goes through the board. In a yet further alternative embodiment, exemplary device  1  could be fully integrated into body  50  without a cradle. In a still further alternative embodiment, exemplary device  1  could be mounted on the surface  51  of body  50 . 
         [0097]      FIG. 13  is a high-level block diagram depicting exemplary components of exemplary device  1  in the exemplary embodiment of the present invention. As depicted in  FIG. 13 , exemplary device  1  comprises exemplary mass storage  200 , exemplary user interface circuitry  201 , a plurality of sensors  202  (including, for example, an exemplary submersion sensor  202   a , an exemplary temperature sensor  202   b , an exemplary acceleration sensor  202   c , and an exemplary GPS sensor  202   d ). In other embodiments, other sensors, such as, by way of non-limiting example, a compass sensor, a gyroscopic sensor, an ambient noise sensor, and/or a water depth sensor could be provided without departing from the spirit of the present invention. 
         [0098]    The exemplary device  1  further comprises exemplary analog switches  203 . Exemplary analog switches  203  correspond to the various exemplary graphic elements  30 ,  31 ,  32 ,  33 ,  34 ,  35 , and  36  on exemplary user interface panel  5  as depicted in  FIG. 6 . Exemplary analog switches  203  are connected to an exemplary FRS transceiver  214 , an exemplary BLUETOOTH® transceiver  211 , an exemplary AM/FM transceiver  212 , and an exemplary digital/satellite (e.g., XM™) radio transceiver  213 . Analogue audio sound passed through exemplary analog switches  203  is then passed through the Power Amplifier(s)  210  which drive(s) exemplary Speakers  216 . 
         [0099]    The exemplary device  1  further comprises a battery charger  208 , and a power supply  209  that converts Battery voltage (from e.g., rechargeable batteries, element  15 , and as depicted in  FIG. 1 ) to regulated voltage levels for use by system circuits. 
         [0100]    The exemplary device  1  further comprises a microcontroller (microprocessor)  204 , an MP3 Decoder  205 , an audio DACS/Signal processor  206 , and a microphone (Mic) interface  215 . 
         [0101]    The exemplary device  1  further comprises a USB port  207 . 
         [0102]    In the exemplary embodiment, compressed music files may be downloaded from, for example, a personal computer, into Mass Storage  200  by the microcontroller (microprocessor)  204  via the USB port  207  (or alternatively, a wireless 802.11 port). 
         [0103]    In the exemplary device, music playback is facilitated by the microcontroller (microprocessor)  204  transferring compressed music files from Mass Storage  200  to the exemplary MP3 Decoder  205  for decompression. Decompressed digital music data is transferred into the Audio DACs  206  and converted into analog audio signals (mono or stereo). Analog audio is passed through the Analog Switches  203 , through the Power Amps  210  which drives exemplary Speakers  216 . One or more Power Amp  210  and Speaker  216  elements may be employed. 
         [0104]    In the exemplary device  1 , direct current (DC) power can be passed through the USB port  207  to the Charger  208  (or alternatively through a coupled inductive link), which recharges batteries  15 . Battery voltage is converted to regulated voltage levels by Power Supply  209  for use by system circuits. 
         [0105]    Further, in an alternative embodiment, audio from an external source, such as, for example, a radio or digital music player, could be entered through a USB port, or other wired or wireless connection(s); of a type whether now known or in the future discovered, that connect to the analog switches  203 , the power amps  210  and the audio exciter  216 . For example, with reference to  FIG. 4 , such an alternative embodiment could provide an additional (optional) recess  121  in body  50 ; the additional recess  121  would be disposed to receive and enclose a separate (optional) audio communication device  120 , such as, for example, a radio, a cellular telephone, transceiver, or digital music player such as, by way of non-limiting example, an IPOD™. 
         [0106]    It will be understood by those with ordinary skill in the art that in such an alternative embodiment, a separate recess  120  could be provided in the body  50  of the craft for receiving and enclosing a separate music, audio or communication device  120 , such as, by way of non-limiting example, an IPOD™, cellular phone, or other separate audio device that is external to, but that communicates with, exemplary device  1 . In such an embodiment, the separate audio device  120  would, would use exemplary device  1  for audio amplification of the audio received by the separate device  120  in the separate recess  121 . 
         [0107]    In such an alternative embodiment, it would be possible for exemplary device  1  to receive or produce a first type of audio signals, for example, radio; separate audio device  120  could receive or produce a second type of audio signal, for example, digital music. Device  120  could also produce a third kind audio signal, for example, two-way communication. Exemplary device  1  in such an embodiment would amplify the audio produced or received by itself, and would also be adapted to amplify the audio received from the separate audio device  120 . Alternatively, exemplary device  1  could be adapted for audio amplification, but would not itself produce audio; in such an embodiment, separate audio device  120  could be the sole source of audio for amplification using exemplary device  1 . 
         [0108]    Continuing with reference to  FIG. 13 , the exemplary device  1 , FRS transceiver  214  receives RF signals via FRS Antenna (see, e.g., element  20  depicted in  FIG. 1 ) and outputs an analog audio signal that can be routed to the Power Amp  210  and Speakers  216  via the Analog Switches  203  under the control of the microcontroller (microprocessor)  204 . FRS Radio channel tuning and privacy code detection may be controlled and/or performed by microcontroller (microprocessor)  204  and/or dedicated circuits within the FRS Radio. 
         [0109]    In the exemplary device  1 , user voice is converted by Mic Interface  215  into an analog signal and passed to the FRS Radio transceiver  214 , which modulates the signal on the FRS transmit channel. Alternatively, the microcontroller (microprocessor)  204  can process this voice signal for clarity before being transmitted. FRS Radio transmission is controlled by User Interface  201  input (e.g., Push-to-Talk button). FRS Radio channel and privacy code usage is controlled by default settings, and altered by Master Radio input. 
         [0110]    In the exemplary embodiment, pressing the Push-to-Talk button pauses audio playback signals fed to the audio transducer  12  (see, e.g.,  FIG. 1 ). 
         [0111]    In the exemplary embodiment, the exemplary device  1  operates FRS Radio as a “Slave” to a detected “Master” radio. The Slave monitors a default channel and privacy code and “slaves” itself to the first detected Master to transmit an assignment signal. Once “slaved”, the Master can reassign the channel and/or privacy code assignment so that optimum FRS Radio traffic is attained. The slaved FRS radio follows the master&#39;s commands until power is cycled or User Interface  201  commands otherwise. 
         [0112]    The BLUETOOTH® Radio transceiver  211  (or similar system) is used to facilitate wireless file transfer from PC&#39;s or other external devices to the exemplary device  1 , or between two or more devices of the same type, or compatible with, exemplary device  1 . 
         [0113]    Exemplary microprocessor  204  facilitates music file downloads to Mass Storage  200 , and/or, music file uploads to external devices. Alternatively, downloaded music files can also be directed by Microprocessor  204  into exemplary MP3 Decoder  205 , bypassing Mass Storage  200 . Doing so would allow instantaneous file sharing for real-time playback. 
         [0114]    The embodiment depicted in  FIG. 13  would include an AM/FM Radio transceiver  212  (or similar) and a Satellite Radio transceiver  213  (e.g., XM or similar) to facilitate receiving AM/FM radio and/or Digital/Satellite radio from external music sources. The Microprocessor  204  (or dedicated circuitry) would control these radio receivers and would direct either an analog audio signal to the Power Amp  210  and Speakers  216  through the Analog Switches  203 , or a compressed audio file through the MP3 Decoders  205  to the Power Amp  210  and Speakers  216  through the Analog Switches  203 . 
         [0115]    In the exemplary device  1 , a plurality of sensors  202  connected to the microcontroller (microprocessor)  204  helps the unit maintain optimum configuration and provides the user with information about the user&#39;s environment. For example, the submersion sensor  202   a  pauses music playback when the exemplary device  1  is underwater. Music playback continues when the exemplary device  1  is again above water. The exemplary temperature sensor  202   b  allows temperature to be verbally announced to the user. Acceleration information sensed by the acceleration sensor  202   c  can be used to plot velocities and accelerations and can also be used to “dead reckon” a user&#39;s course on the water. Global Positioning System (GPS) information from the GPS sensor  202   d  can provide information to the user about course, speed, direction, and positioning. 
         [0116]      FIG. 2  depicts a perspective view of an exemplary human aquatic sports participant  75  riding atop a exemplary body  50  in which the exemplary embodiment of the device  1  is embedded in exemplary body  50 . In  FIG. 2 , exemplary body  50  comprises a bodyboard  70 . Because in the exemplary embodiment, exemplary body  50  comprises a bodyboard  70 , reference herein to the bodyboard  70  of the exemplary embodiment may be made to bodyboard  50 ; reference herein to the surface  51  of bodyboard  50  may be made to bodyboard surface  51 , or may be made to the top surface  51  of bodyboard  50 . 
         [0117]    The exemplary embodiment of the device  1  being mechanically connected to bodyboard  50  acoustically couples sound waves into the surface  51  of the bodyboard  50 . In the exemplary embodiment, acoustic coupling into the surface  51  of a body  50  is accomplished in at least two ways. First, exemplary rubber ring  7  contacts surface  51  of body  50 . It will be understood by someone with ordinary skill in the art that the description of exemplary rubber ring  7  is illustrative and non-limiting. Rather, as will be understood by someone with ordinary skill in the art, it would be possible to use other ways and materials for coupling an audio-excited panel, e.g., exemplary user interface panel  5 , to a surface  51  of a body  50  into which an exemplary device  1  is imbedded. For example, members made of various flexible and/or elastomeric materials other than rubber could be used to couple an audio-excited panel, e.g., exemplary user interface panel  5 , to a surface  51  of a body  50  into which an exemplary device  1  is imbedded. Further, such members could be formed in various geometries other than a ring. 
         [0118]    Another way in the exemplary embodiment that acoustic coupling into the surface  51  of a body  50  is accomplished is by the conducting of sound waves that are propagated by the audio transducer  12  through exemplary upper housing component  11  and exemplary lower housing component  10 , then through exemplary cradle  2 , then into the body  50 , and then through the surface  51  of the body  50 . 
         [0119]    As mentioned previously above, it would be possible in alternative embodiments, to fasten the audio device directly into a recess in body  50  (e.g., by “screwing” threaded exterior walls of the housing of device  1  into the threaded interior walls of a recess, such as recess  71 . In such an embodiment, no cradle would be provided. The direct contact between the housing in such an embodiment, with the interior walls and/or the floor of the recess, e.g., recess  70 , in body  50  results in further acoustic sound level that emanates through surface  51 . In such an embodiment, a thin coating of the interior walls of the recess, e.g., recess  70  could be applied to protect the body from environmental factors when the device  1  is removed. 
         [0120]    It will be understood by someone with ordinary skill in the art that the extent of audio sound level enhancement may be affected by the material composition of body  50 . For example, a body  50  comprising STYROFOAM® may tend to better conduct audio sound waves than a body  50  comprised of a solid plastic. 
         [0121]    The above-mentioned acoustic coupling enhances many facets of the aquatic sport participant&#39;s listening experience. One of the enhancements is overall audio sound level. 
         [0122]    Empirical testing shows the audio sound level produced by exemplary device  1 , and reinforced by the surface  51  of the exemplary body  50 , and the overall exemplary body  50 , provides an increase in sound level of approximately 20 db.  FIG. 14  is a graph that depicts results of empirical tests regarding audio levels produced by exemplary device  1  of the exemplary embodiment of the present invention. In  FIG. 14 , the x-axis relates to audio frequency, measured in Hertz (HZ); the y-axis relates to sound level (also referred to as audio amplitude), measured in decibels (dB(A)). 
         [0123]    In  FIG. 14 , plotted curve  66  (a dotted line) reflects the audio profile of the exemplary device  1  as measured when the exemplary device operated in free space. Plotted curve  65  (a solid line) reflects the audio profile of the exemplary device  1  when the exemplary device  1  was mounted into an exemplary bodyboard  50 . As depicted in  FIG. 14 , plotted curve  65  is in most instances, at least as strong as plotted curve  66 , and in most cases, is significantly higher. As depicted in  FIG. 14 , gains in sound level realized by conducting sound energy from the exemplary device  1  into the bodyboard  50  are, in some cases, more than 10 dB(A), and in some cases, as high as 20 dB(A). Frequency response has also been enhanced, especially in the 100-2000 Hz range. 
         [0124]    Another enhancement that results from the exemplary device  1  being mechanically and acoustically coupled to bodyboard  50  and bodyboard surface  51 , is that the audio spectral response of exemplary device  1  is equalized. That is, bass audio response is increased due to the low frequency resonance of bodyboard  50 , and the bodyboard surface  51 . 
         [0125]    Yet another enhancement that results from the exemplary device  1  being mechanically and acoustically coupled to bodyboard  50  and bodyboard surface  51 , is that the entire surface  51  of the exemplary bodyboard  50  acts as a distributed mode sound board or speaker. That is, the audio image presented to the aquatic sport participant  75  sounds like it is fully encircling the participant  75 . The entire surface  51  of the exemplary bodyboard  50  acting as a distributed mode sound board or speaker contrasts to a loudspeaker of common design where audio sound emanates from a driver and sounds to the participant as if the audio sound is emanating from a point source. 
         [0126]    In the exemplary embodiment, the exemplary device  1  is mounted into exemplary bodyboard  50  so that the top of the exemplary device  1  is flush, or nearly flush, with the top surface  51  of the exemplary bodyboard  50 . Thus, in the exemplary embodiment, the exemplary device  1  being recessed into the bodyboard  50  does not interfere with the exemplary bodyboard&#39;s  50  normal function. Further, it does not encroach into the participant&#39;s  75  domain on the exemplary bodyboard  50 . 
         [0127]    It will be understood by someone with ordinary skill in the art that recessing exemplary device  1  so that the top of exemplary device  1  is flush, or nearly flush with the top surface  51  of the exemplary bodyboard  50  is illustrative and non-limiting. Without departing from the spirit of the present invention, it would be possible to recess the exemplary device  1  further into the exemplary bodyboard  50  so that a well would be formed in the exemplary bodyboard&#39;s surface  51 . As a further alternative, exemplary device  1  could be mounted on top of (above) the exemplary bodyboard&#39;s surface  51 . 
         [0128]      FIG. 15  depicts a cutaway sectional view of an alternative embodiment of the exemplary device  1  in which the device  1  is mounted to the top surface  51  of a body  50 . In the alternative embodiment depicted in  FIG. 15 , exemplary device  1  is mounted into an exemplary cradle  2 . 
         [0129]    As depicted in  FIG. 16 , in such a top-mounted embodiment, exemplary cradle  2  is set within a form recess  85  provided in an exemplary form  80 . In the alternative embodiment, exemplary form  80  comprises a material adapted for conducting audio waves, such as, for example, STYROFOAM®, Expanded Polypropylene (EPP) foam, or other type of material. Exemplary bottom form surface  82  of exemplary form  80  is bonded to, affixed to, or otherwise in contact with, exemplary surface  51  of body  50 . 
         [0130]    In such a top-mounted embodiment, audio waves generated by exemplary device  1  are conducted into exemplary cradle  2 . Cradle  2  in turn, conducts the audio waves into exemplary form recess surface  90  of the exemplary form recess  85 . Audio waves conducted into exemplary form recess surface  90  are then conducted into exemplary form  80  and are then conducted into exemplary surface  51  and then into exemplary body  50 . 
         [0131]    In the alternative embodiment depicted in  FIGS. 15 and 16 , exemplary device  1  is similar to that depicted in  FIG. 1 . In the alternative embodiment depicted in  FIGS. 15 and 16 , an elastomeric rim  7  conducts audio waves from a device housing (e.g., elements  10 - 11  depicted in  FIG. 16 ) of device  1  to exemplary form top surface  81 . Audio waves are then conducted from the body of form  80  into the exemplary bottom form surface  82 , then into the exemplary board surface  51  of the exemplary board  50 . 
         [0132]    It will be understood by someone with ordinary skill in the art that the alternative embodiment depicted in  FIGS. 15 and 16  is non-limiting and illustrative. Other geometries and materials that are adapted for conducting acoustic sound waves and/or support the exemplary device  1  could be used without departing from the spirit of the present invention. For example,  FIG. 17  depicts a cutaway sectional view of a further alternative top-mounting embodiment of the exemplary device  1 . In the embodiment depicted in  FIG. 17 , device  1  would provide a low profile, and would be affixed, bonded, or otherwise in contact with the top surface  51  of body  50 . 
         [0133]    In the further alternative embodiment depicted in  FIG. 17 , alternative exemplary device  1  would provide an alternative housing geometry that would be formed by joining exemplary upper housing  11  to alternative exemplary lower housing  96 . Alternative exemplary lower housing  96  would have an alternative exemplary bottom surface  97 . Alternative exemplary bottom surface  97  would be affixed to, bonded to, or otherwise in contact with, exemplary board surface  51 . Audio sound waves generated by exemplary device  1  would be conducted into alternative exemplary lower housing  96  and then into exemplary board surface  51 . It will be understood by those with ordinary skill in the art that the further alternative embodiment depicted in  FIG. 17  is illustrative and non-limiting. Other geometries and materials adapted to conduct acoustic sound waves and/or support the exemplary device  1  could be used without departing from the spirit of the present invention. 
         [0134]    Continuing with reference to  FIG. 2 , in the exemplary embodiment, exemplary device  1  is located towards the front  106  of the exemplary bodyboard  50  allowing the exemplary device  1  to be above the waterline during use. That is, when the participant  75  sits or rides on the exemplary bodyboard  50 , the rear  105  of the exemplary bodyboard  50  may tend to be submerged below the waterline. Further, locating the exemplary device  1  towards the front  106  of the exemplary bodyboard  50  generally positions the exemplary device  1  below the participant&#39;s  75  head, thereby maximizing audio volumes and audio fidelity for the participant&#39;s listening. Even so, it would be possible to position the exemplary device  1  in other locations on the exemplary bodyboard  50  without departing from the spirit of the present invention. 
         [0135]    In a further alternative embodiment of the invention depicted in  FIG. 18 , a device  1 ′ is recessed in the body  50  of bodyboard  70 . In the further alternative embodiment of the invention depicted in  FIG. 18 , device  1 ′ would comprise an audio source, a power source, electrical circuitry, a housing, and components similar to exemplary device  1  previously described above, but would not necessarily comprise an audio transducer. Rather, in the further alternative embodiment of the invention depicted in  FIG. 18 , one or more flat panel audio transducers  12  would be imbedded in the body  50  beneath the top surface  51  of the body  50  of bodyboard  70 . In such an embodiment, imbedding one or more flat panel audio transducers  12  in the body  50  would acoustically couple each imbedded flat panel audio transducer  12  to the body  50  and to the top surface  51  (and to the bottom surface  51 ′) of bodyboard  70 . In such an embodiment, the transducers  12  would be connected, for example, by wires  200 , to the power source, audio source, and electrical circuitry of device  1 ′. Acoustic coupling of the imbedded audio transducers  12  to the body  50  and the top surface  51  (and to the bottom surface  51 ′) result in the bodyboard  70  comprising a sound board or speaker. 
         [0136]    Other features of the invention are implicit in the above-provided description and/or are depicted and/or are implicit in the accompanying Figures. 
       Facsimile Reproduction of Copyright Material 
       [0137]    A portion of the disclosure of this patent document contains material which is subject to copyright protection by the copyright owner, Whobody, Inc., its successors and assigns. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever. 
       Illustrative Embodiments 
       [0138]    Although this invention has been described in certain specific embodiments, many additional modifications and variations would be apparent to those skilled in the art. It is, therefore, to be understood that this invention may be practiced otherwise than as specifically described. Moreover, to those skilled in the various arts, the invention itself herein will suggest solutions to other tasks and adaptations for other applications. Thus, the embodiments of the invention described herein should be considered in all respects as illustrative and not restrictive, the scope of the invention to be determined by the appended claims and their equivalents rather than the foregoing description.