CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application claims the benefit of U.S. Provisional Patent Application 61/176,607, filed on May 3, 2009, and incorporated herein by reference. 
     
    
     STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT 
       [0002]    Not applicable. 
       FIELD OF THE INVENTION 
       [0003]    The present invention generally relates to advertisement displays and, more specifically, to a mobile, remote-controlled, electronic advertisement display device. 
       DISCUSSION OF RELATED ART 
       [0004]    The success of traditional fixed billboard and wall-type advertising depends on the location and placement of the advertisement. To be effective, advertisers must choose what they feel is the best ad location that they can afford in the hopes that potential consumers will see and react to the message in the advertisement. One problem with traditional fixed billboard and wall-type advertising is the mobility of the advertisement. These types of fixed location advertising devices are not mobile and cannot move with or to a target audience on demand. Another problem with fixed location outdoor advertising such as billboards and banners is that this type of advertising is prohibited in many places. 
         [0005]    Another type of advertising method includes mobile vehicle advertising such as banners or video ads on automobiles. The type of advertising faces the problem of restricted access to an intended audience. Mobile vehicle advertisers are limited to advertising only from roads and parking areas. Mobile vehicle advertisers are not able to drive their vehicles around inside a public retail structure or on public sidewalks to capture the attention of their intended audiences. 
         [0006]    One such advertisement system that attempts to solve the above disadvantages mentioned above is U.S. Patent Application Publication No. US 2004/0049960 A1 to Percy, on Mar. 18, 2004. Percy describes an advertisement system that allows display of at least one product advertisement. The system includes a base, an advertisement display unit, a motor, and a receiver. The receiver receives input signals from a control unit that is remotely located, and converts the input signals into control signals that control operation of the motor and advertisement display unit. A power source can be mounted on the base to supply power to the system. However, the advertisement system of Percy is for the inside of a store only, and is not capable of surviving the weather elements outside, such as rain, sleet, or snow. In addition, the system of Percy does not provide a mechanism for adjusting the height of the display of the system. 
         [0007]    Therefore, there is a need for an apparatus that is capable of providing advertising both indoors or outside. Also, there is a need for an apparatus that can be remotely controlled by a user and that is capable of changing locations and heights, on demand, for example, depending on the location and desired height that a user would like to display an advertisement. The present invention accomplishes these objectives. 
       SUMMARY OF THE INVENTION 
       [0008]    The present device is a media display platform for displaying media content such as advertisements, warnings, and other content. The platform includes a chassis, at least three wheels adapted to moveably support the chassis on a ground surface, a motive mechanism fixed with the chassis and adapted for driving at least one of the wheels in a rotational motion, a controller in electronic communication with the motive mechanism and adapted to control a speed and a direction that the motive mechanism drives the at least one of the wheels, at least one display screen fixed with the chassis, a media player in electronic communication with the at least one display screen and adapted for playing the media thereon, a power source electrically connected with at least the motive mechanism and each display screen, and a lift mechanism fixed with the chassis and each display screen, electrically connected with the power source and the controller, and adapted to lift at least one of the display screens above the chassis. 
         [0009]    The controller may be used to direct the chassis to move along the ground surface while the media player plays a video portion of the media on the at least one display screen. The controller may be a wireless remote control that gives a user the option of changing the direction, speed, height, and the like, of the at least one display. In some embodiments, the platform may be completely automatic with no need for user control. 
         [0010]    In some embodiments, the platform may include at least one speaker electronically connected with the media player, such that an audio portion of the media may be reproduced thereby. In some embodiments, the platform may further include a radio transmitter for broadcasting an audio portion of the media. 
         [0011]    The present system is capable of providing advertising anytime, anywhere, be it indoors or outside. Also, the present system may be remotely controlled by a user. Using the remote control the user is capable of changing the height of the advertisement display, on demand, for example, depending on the location and desired height that a user would like to display an advertisement. Other features and advantages of the present invention will become apparent from the following more detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the invention. 
     
    
     
       DESCRIPTION OF THE DRAWINGS 
         [0012]      FIG. 1A  is an example of a media display apparatus that is displaying an advertisement on a surface, according to various embodiments; 
           [0013]      FIG. 1B  is an example of the media display apparatus illustrated in  FIG. 1A , according to various embodiments; 
           [0014]      FIG. 2  is an exploded view of an example media display apparatus, according to various embodiments; 
           [0015]      FIG. 3  is a side-perspective of an example media display apparatus, according to various embodiments; 
           [0016]      FIG. 4  is an internal view of an example media display apparatus, according to various embodiments; and 
           [0017]      FIG. 5  is a side-perspective of an example media display apparatus, according to various embodiments. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0018]    Illustrative embodiments of the invention are described below. The following explanation provides specific details for a thorough understanding of and enabling description for these embodiments. One skilled in the art will understand that the invention may be practiced without such details. In other instances, well-known structures and functions have not been shown or described in detail to avoid unnecessarily obscuring the description of the embodiments. 
         [0019]    Unless the context clearly requires otherwise, throughout the description and the claims, the words “comprise,” “comprising,” and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of “including, but not limited to.” Words using the singular or plural number also include the plural or singular number respectively. Additionally, the words “herein,” “above,” “below” and words of similar import, when used in this application, shall refer to this application as a whole and not to any particular portions of this application. When the claims use the word “or” in reference to a list of two or more items, that word covers all of the following interpretations of the word: any of the items in the list, all of the items in the list and any combination of the items in the list. 
         [0020]      FIG. 1A  illustrates an example of a media display apparatus that is displaying an advertisement on a surface. Referring to  FIG. 1A , a media display apparatus platform  10  (hereinafter platform  10 ) displays media content, such as video  21 , onto a surface  18 . 
         [0021]      FIG. 1B  illustrates an example of the media display apparatus illustrated in  FIG. 1A .  FIG. 4  illustrates an internal view of an example media display apparatus. Referring to  FIGS. 1B and 4 , platform  10  displays media  20 . The platform  10  includes a chassis  30  that is disposed on an underside of platform  10 , and which supports the body of platform  10 . The size of the chassis may  30  vary depending on the size of the body of platform  10 . The chassis may be comprised of various materials, for example, wood, plastic, metal, and the like. The metal may include, for example, aluminum, steel, carbon fiber, and the like. 
         [0022]    The platform  10  includes at least three wheels  40  that are adapted to moveably support the chassis  30  on a ground surface  15  (shown in  FIG. 2 ). The number of wheels  40  may vary, for example, the number of wheels  40  may be 3 wheels, 4 wheels, 5 wheels, 6 wheels, or more wheels. The size and material of the wheels  40  may vary as desired. The wheels  40  may be constructed from any desired material, for example, the wheels  40  may be comprised of rubber, plastic, metal, and the like. 
         [0023]    The platform  10  includes a motive mechanism  50  fixed with the chassis  30  and adapted for driving at least one of the wheels  40  in a rotational motion. For example, the motive mechanism  50  may include an electric motor. The motive mechanism  50  may provide the forward and reverse power or drive movement to the wheels  40  to propel the platform  10  forward and backward. The motive mechanism  50  may also provide the platform with a propulsion stop function. The motive mechanism  50  may include various safety features. For example, when the forward and/or reverse function of the motive mechanism  50  is not engaged, the motive mechanism  50  may instantly eliminate power, thus locking the wheels  40  in place. This locking may stop any and all forward or reverse wheel  40  movement, even on an incline or decline. This motor locking feature provides safety to the media display apparatus and the people around. 
         [0024]    In some embodiments, the motive mechanism  50  includes at least a gas-powered engine (not shown) mechanically coupled to at least one of the wheels  40 . In some embodiments, the platform  10  may further include at least one proximity sensor  250  for overriding commands to the motive mechanism  50  when a hazard is detected thereby. For example, when a person is sensed near or approaching the platform  10 , the at least one proximity sensor  250 , may sense the movement, and thereby detect a hazard. The at least one proximity sensor  250  may override the commands to the motive mechanism  50  to shut down the power, or to stop the platform  10  from moving. 
         [0025]    The platform  10  includes a controller  60  in electronic communication with the motive mechanism  50  and adapted to control the motive mechanism including the speed and direction that the motive mechanism  50  drives at least one wheel  40 . The controller  60  may include a wireless transmitter  140  that allows a user to remotely control the platform  10 . For example, the controller  60  may include a radio controller  140  that receives signal inputs from joysticks, switches, buttons, and the like, of the controller  60 , and transmits the signals to a radio receiver  130  that is in electrical communication with the motive mechanism  50 . The radio receiver  130  may read the transmitted signals and translate them into actions for controlling direction and propulsion of the platform  10 . 
         [0026]    The platform  10  includes at least one display screen  70  fixed with the chassis  30 . The display may be comprised of, for example, light emitting diodes (LEDs), organic LEDs (OLEDs), liquid crystal design (LCD), plasma screen, and the like. The size of the display screen  70  may vary. For example, the display screen  70  may include a 19 inch screen, a 27 inch screen, a 35 inch screen, a 48 inch screen, a 60 inch screen, or other desired size. The at least one display screen  70  may include a plurality of displays, for example, two displays, three displays, four displays, and the like. The display screen  70  may include a monitor mount to stably hold the display screen  70  in place inside the platform  10 . The controller  60  may also control the movement, on/off, direction, and the like, of the at least one display screen  70 . 
         [0027]    The platform  10  includes a media player  80  in electronic communication with the at least one display screen  70  and adapted for playing the media thereon. The media player  80  may be a media player integrated into the at least one display  70 . The media player  80  may be a stand-alone media player such as a computer hard drive. The media player  80  may provide video and/or audio playback functions from data stored on the hard drive. The data may include, for example, motion images, audio recordings, digital images, and the like. In some embodiments, the controller may include a receiver  130  and a wireless transmitter  140 . The wireless transmitter  140  may be adapted to transmit commands  150  to the receiver  130  for controlling the motive mechanism  50  and the media player  80 . 
         [0028]    In some embodiments, the platform  10  may further include at least one speaker  110  electronically connected with the media player  80 , such that an audio portion  22  of the media may be reproduced thereby. In addition, the speaker  110  may produce alerts such as beeps and alarms to indicate to pedestrians that the platform  10  is approaching. In some embodiments, the platform  10  may further include a radio transmitter  160  for broadcasting the audio portion  22  of the media. 
         [0029]    The platform  10  includes a power source  90  electrically connected with at least the motive mechanism  50  and each display screen  70 . The power source  90  may be a rechargeable power supply, for example, a rechargeable 12-volt battery, and the like. The platform  10  may include an on-board battery charger that may replenish/recharge the power source  90 . The power source  90  may consist of a plurality of batteries, for example, two batteries, three batteries, four batteries, or more. Each of the batteries may have any desired and appropriate voltage and capacity. The platform  10  may include a power inverter to convert battery power to AC 110V power for powering electrical devices such as DVD players, or the like. Further, the platform  10  may receive power from an external source, such as from an outlet, via one or more extension cables (not shown). In some embodiments, the motive mechanism  50  includes at least an electric motor  180  electrically connected with the power source  90  and the controller  60 . 
         [0030]      FIG. 2  illustrates an exploded view of an example media display apparatus. Referring to  FIGS. 1B and 2 , the platform  10  includes a lift mechanism  100  fixed with the chassis  30  and each display screen  70 , electrically connected with the power source  90  and the controller  60 , and adapted to lift at least one of the display screens  70  above the chassis  30 . The lift mechanism  100  may include a motor that is in electrical communication with the controller  60 , and which is capable of mechanically moving the lift mechanism  100  up and down. Using the controller  60 , a user may remotely control the movement of the lift mechanism  100 . Also, a power inverter may be electrically connected to a power strip that is electrically connected to one or more of the motive mechanism  50 , the at least one display,  70 , the media player  80 , and the lift mechanism  100 . 
         [0031]    Accordingly, the controller  60  may be used to direct the chassis  30  to move along the ground surface  15  while the media player plays a video portion  21  of the media on the at least one display screen  70 . In some embodiments, the platform  10  may further include a digital projector  120  interconnected with the power source  90  and the media player  80 , such that the video portion of the media may be projected onto a surface  18  thereby. 
         [0032]      FIG. 3  illustrates a side-perspective of an example media display apparatus. Referring to  FIGS. 1B ,  3 , and  4 , in some embodiments, the platform  10  may further include a weatherproof enclosure  200 . The enclosure  200  may include at least one transparent portion  210  approximately aligned with each display screen  80 , such that water impacting the platform  10  does not gain access to the at least one display screen  80 . In addition, the controller  60 , the power source  90 , and/or the media player  80  may be included in the enclosure  200 . The enclosure  200  may further include at least one openable access panel  220 . 
         [0033]    In some embodiments, the platform  10  may further include at least one camera  230  fixed with the chassis  30  and electrically connected with the power source  90 , the controller  60 , the media player  80 , and/or at least one electronic memory. The camera may be used to take digital images. In some embodiments, the platform may further include at least one light source  240  electrically connected with the power source  90  and the controller  60 . Each light source  240  may be adapted for illuminating an area around the platform  10  when the camera  230  is activated by the controller  60 . 
         [0034]      FIG. 5  illustrates a rear-perspective of an example media display apparatus. Referring to  FIGS. 1B and 5 , in some embodiments, at least one of the wheels  40  may be mechanically coupled to a steering mechanism  170  that is electronically connected with the controller  60  and the power source  90 . Also, the controller  60  may be adapted to issue steering commands to the steering mechanism  170  such that the platform  10  may be steered thereby. In some embodiments, the platform  10  may further include at least one stabilizing brace  260  (shown in  FIG. 5 ) fixed with the chassis  30  and adapted to be positioned onto the ground surface  15  to maintain the chassis  30  in an upright configuration. 
         [0035]    While a particular form of the invention has been illustrated and described, it will be apparent that various modifications can be made without departing from the spirit and scope of the invention. For example, in some embodiments, the platform  10  is not controlled by a user but is instead fully automatic and programmed to function as an intelligent robotic system. For example, a computer and/or one or more sensors may drive and guide the platform  10 . In some embodiments, the platform  10  may be used with tank tracks to provide skid steering and/or differential steering. Accordingly, it is not intended that the invention be limited, except as by the appended claims. 
         [0036]    Particular terminology used when describing certain features or aspects of the invention should not be taken to imply that the terminology is being redefined herein to be restricted to any specific characteristics, features, or aspects of the invention with which that terminology is associated. In general, the terms used in the following claims should not be construed to limit the invention to the specific embodiments disclosed in the specification, unless the above Detailed Description section explicitly defines such terms. Accordingly, the actual scope of the invention encompasses not only the disclosed embodiments, but also all equivalent ways of practicing or implementing the invention. 
         [0037]    The above detailed description of the embodiments of the invention is not intended to be exhaustive or to limit the invention to the precise form disclosed above or to the particular field of usage mentioned in this disclosure. While specific embodiments of, and examples for, the invention are described above for illustrative purposes, various equivalent modifications are possible within the scope of the invention, as those skilled in the relevant art will recognize. Also, the teachings of the invention provided herein can be applied to other systems, not necessarily the system described above. The elements and acts of the various embodiments described above can be combined to provide further embodiments. 
         [0038]    All of the above patents and applications and other references, including any that may be listed in accompanying filing papers, are incorporated herein by reference. Aspects of the invention can be modified, if necessary, to employ the systems, functions, and concepts of the various references described above to provide yet further embodiments of the invention. 
         [0039]    Changes can be made to the invention in light of the above “Detailed Description.” While the above description details certain embodiments of the invention and describes the best mode contemplated, no matter how detailed the above appears in text, the invention can be practiced in many ways. Therefore, implementation details may vary considerably while still being encompassed by the invention disclosed herein. As noted above, particular terminology used when describing certain features or aspects of the invention should not be taken to imply that the terminology is being redefined herein to be restricted to any specific characteristics, features, or aspects of the invention with which that terminology is associated. 
         [0040]    In general, the terms used in the following claims should not be construed to limit the invention to the specific embodiments disclosed in the specification, unless the above Detailed Description section explicitly defines such terms. Accordingly, the actual scope of the invention encompasses not only the disclosed embodiments, but also all equivalent ways of practicing or implementing the invention under the claims. 
         [0041]    While certain aspects of the invention are presented below in certain claim forms, the inventor contemplates the various aspects of the invention in any number of claim forms. Accordingly, the inventor reserves the right to add additional claims after filing the application to pursue such additional claim forms for other aspects of the invention.
A mobile system that is capable of providing advertising both indoors or outside is provided. The system may be remotely controlled by a user. Using the remote control the user is capable of changing the height of the advertisement display, on demand, for example, depending on the location and desired height that a user would like to display an advertisement.