Patent Publication Number: US-2011050514-A1

Title: Removable mounting device for atenna

Description:
CROSS REFERENCE TO RELATED APPLICATION 
     This application is a continuation of copending U.S. patent application Ser. No. 11/811,409, entitled “REMOVABLE MOUNTING DEVICE FOR ANTENNA,” filed on JUN. 11, 2007, by Michael Jack Schipper, et al., which is hereby incorporated by reference, and claims priority and benefit under 35 U.S.C. §120. 
    
    
     FIELD OF INVENTION 
     The invention relates to a mounting device for an antenna, and more particularly to a removable mounting device for an antenna for use with portable electronic devices. 
     BACKGROUND OF THE INVENTION 
     The following three patents are use to illustrate the state of the art, but do not define anything which would prevent the patenting of the present invention. 
     U.S. Pat. No. 6,686,809 describes an antenna unit for a car navigation device includes a unit casing accommodating a circuit board and an antenna body and having a bottom cover in which a bottom recess is formed. A permanent magnet ring magnetically held on a back yoke is fixedly set in the bottom recess, the permanent magnet ring being used to magnetically hold the bottom cover on the surface of an object so that the antenna unit is detachably mounted on the object. In the antenna unit, an adhesive seal is bonded to the of the permanent magnet ring which surface confronts the surface of the object. 
     U.S. Pat. No. 7,002,523 describes an antenna device comprising an antenna element, and a bottom cover and a top cover which cover the antenna element. The bottom cover includes a base projection to be inserted into an opening formed in a mounting part, a washer having an elastic force being fitted over this base projection, and the washer comes into contact with an inner face of the mounting part thereby enabling the antenna device to be mounted and fixed. The washer is inserted into the opening in the mounting part in a state fitted over the base projection, and recovered to its original shape by the elastic force after the insertion, thereby to be brought into contact with the inner face of the mounting part. 
     U.S. Pat. No. 6,288,684, describes amounting apparatus ( 100 ) suitable for retaining an antenna ( 112 ) includes a base ( 102 ) having magnetic sources ( 104 ) and ( 106 ) capable of providing varying magnetic forces. Magnet ( 104 ) retains the base against a metal surface ( 410 ), while an electronically controlled magnet ( 106 ) provides additional retention of the base ( 102 ) against the metal surface ( 410 ) when activated, thereby preventing movement of the base and antenna ( 112 ). 
     Electronic devices that obtain information from a remote source typically receive that information though a wireless transmission medium. Information that is transmitted to outdoor and/or remote locations will usually be through radio frequency transmission. Some electronic devices that use antennae integrate the antenna into the device enclosure such as personal cellular phones which makes them highly portable. For proper reception of radio signals, an antenna may require placement away from interfering shielding, electronic noise sources, or require improved line of sight to the source antenna. Remote antenna placement typically uses cables and antenna mounting structures. Automobile, boat, and aircraft antenna have been used and mounted in a variety of methods. Mounts have attached to the frames, mirrors, windows, dash boards, and other area. As devices become increasingly portable and multi functional, the user desires to have an integrated antenna, multiple antennae, or a transportable antenna to maintain full functionality and portability of their devices. Antenna mounts with a magnetic base such as Yajima 1996 are used in applications where the mount is temporary and the installation does not use tools which results in the mounting process being easy for the installer. The use of a magnetic mount provides the user with a portable solution without the use of tools to remove the antenna. Although providing simplicity, magnetic antenna mounts do not meet the requirements in many aircraft, boat, and even automotive applications. Differing material that are non-ferrous such and aluminum skins of aircraft and composite fiber of aircraft and boats do not provide sufficient magnetic attraction. Additionally, high speed winds on vehicles break the hold of a magnetic mount. An alternative is to mount the antenna internal to a moving vehicle to avoid wind forces and to shorten cable lengths for cable management. Satellite navigation systems and satellite broadcast radios are two examples of radio devices that can receive sufficient signals when the antenna is mounted on the interior of a vehicle with a line of sight to the sky. A dashboard mount can solve problems associated with wind and will shorten cable lengths. Unfortunately in navigation equipped vehicles such as aircraft and boats, the use a magnetic mount will interfere with magnetic compasses in the vicinity of a dash mounted antenna. Remaining options for dash board mounting the antenna include permanent fasteners such as screws, adhesive, and hook and loop fasteners. 
     Having multiple permanent antenna installations would allow the electronic equipment to be used in multiple locations therefore partially meeting the portability requirement yet resulting in an increased cost to the user. Additional cost may be incurred on antenna systems that use a multi-functional antenna and antenna that have integrated electronics. These antenna devices are higher cost in both purchase price and use price. An antenna that integrates a satellite radio system with an antenna would have a subscription price associated with each satellite radio that resides internal to the antenna structure. 
     For usability and cost saving, the requirements for an antenna mounting structure associated with portable electronics are to have a mounting system that allows for easy removal of the antenna, proper cable management, ease of placement, movement from sites without tools, and little or no reliance on magnetic attachment. 
     SUMMARY OF THE SYSTEM AND METHOD 
     The invention is a mounting device for an antenna device and to a method for mounting, and removing the antenna. In addition to providing a mounting mechanism, the capture or mounting of the device incorporates a storage feature for the antenna cable to make it transportable. In this embodiment, the apparatus provides a means for connecting an antenna to a housing, storing a cable in the housing, and capturing the housing to a docking mechanism while allowing for easy removal of the antenna, and cable storage feature. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Reference is now made to the following detailed description of the described embodiments, taken in conjunction with the accompanying drawings. It is emphasized that various features may not be drawn to scale and selected views are selected for clarity of discussion and may not show all of the features that are present. Reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which: 
         FIG. 1  illustrates an exploded view of and antenna and an antenna mounting system, which uses a dock and cable spool; 
         FIG. 2A-2B  illustrates the dock structure of an antenna mounting system showing internal features; 
         FIG. 3  illustrates the base structure of an antenna mounting system showing internal features; and 
         FIGS. 4   a ,  4   b  and  4   c  show an example of an antenna mounted on the antenna mounting system of  FIGS. 1-3 ; and 
         FIG. 5  is a isometric view of the antenna mounted on the antenna mounting system. 
     
    
    
     DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT 
     A mounting and capture mechanism for an antenna comprising of a dock and a base wherein the dock and base can be disconnected for antenna portability. The base attaches to the antenna and provides a means for holding the antenna cable and cable connector. A dock mechanism provides a means for connecting to the base and attaching the resulting assembly to a surface. For the purpose of this disclosure, an aircraft instrument panel dashboard will be used as an example. Installation may be intuitively extended to any surface used for mounting an antenna including brackets for interior mounting. 
     The proposed methods will be using a dock and base made from plastic material and attached to the supporting surface by screws. However, the materials and attachment means may easily be constructed of other materials. 
     In a first embodiment, the base mechanism attaches to the antenna and holds a first cable comprising of at least one connector from the antenna for routing a connection internal to base so that the antenna may be transportable. A first cable may be a short cable that connects to the antenna or the first cable may be a permanent cable that is integrated into the antenna assembly. The base is attached to the antenna by any means the manufacturer of the antenna provides such as screws, locking mechanisms, threads, tape, or clips. Other means of attachment include but are not limited to adhesives, hook and loop fasteners and material bonding. A second cable comprising at least one connector is attached to the first cable connector to complete the circuit between the electronic device and the antenna. 
       FIG. 1  illustrates an antenna mounting mechanism using a base  11  and dock  12  and the corresponding antenna  9 . The mounting mechanism  10  is comprised of a base  11  and a dock  12 . First cable connector  15  is captured internal to the base  11  and the first cable  13  is wound and collected in the base&#39;s spool grove  14 . Once the first cable  13  is captured and the antenna  9  secured to the base  11 , the antenna  9 , base  11  and cable  13  comprise a self contained and transportable assembly. Dock  12  connects to base  11  and holds it in place. A second cable  17  and connector  18  originates from the electronic device (not illustrated) and is routed into dock  12 . Cable  17  may be routed from beneath base  12 , through an opening in the mounting surface, or through a side slot  21 . Side slots  21  may be used to the cable when holes beneath base  12  are not desired or feasible. Connector  18  attaches to connector  15  to complete the connection between the antenna  9  to the electronic device. Connectors  18  and  15  are retained in place by capture fingers  19 . Screws  16  and nuts  20  are used to connect dock  12  to a surface that will support the mounting device and the antenna  9 . Dock  12  may be secured with other methods comprising tape, glue, hook and loop fasteners or simply left unsecured depending on the user application. 
       FIG. 2A  illustrates the features of dock  12  in a perspective view, and  FIG. 2B  illustrates the features of dock  12  from a bottom view. The second cable  17  and connector  18  can be routed from beneath the dock through the opening  22 . Once the connector  18  has passed though opening  22 , cable  17  is slid to hole  23  where the opening is smaller than connector  18 . Connector  18  is therefore restricted from passing back though the opening. Preventing the second cable and associated connector from falling back though the mounting device is important while connector  15  and connector  18  are disengaged such as when the base  11  has been transported to another location. When the antenna  9  and base  11  return, the accessibility of the cable provides for easy re-attachment and engagement to the dock. Although the slot in this embodiment is a straight slot from the connector pass though hole  22  to the cable resting hole  23 , the design of the keyhole could be angled, spiral, or other shapes depending on the connector position and designers preferences. Tabs  24  are used to position and indents  25  secure base  11  inside of dock  12  cavity. Holes  26  are where screws  16  are used to attach the base to a surface. 
       FIG. 3  illustrates a bottom view of base  11 . Slots  31  are located in base  11  to correspond to tabs  24  of dock  12 . Base  11  is inserted into the dock  12 , aligned to the tabs and rotated until the tabs catch in the slots  31  of base  11 . Flexible locks  25  ( FIG. 2   b ) provide pressure to aid in capture. Once captured, base  11  is prevented from lifting out of dock  12  and the components acts as a single assembly. To aid in base capture locking mechanisms such as detents, friction locks and tongue and grove may be used at the discretion of the designer. Such mechanisms are common and obvious to a knowledgeable mechanical designer. Cable  17  connector  18  and cable  13  connector  15  are joined together and held in place by capture fingers  19 . Screws  33  are attached to the antenna module and the mounting method will vary between antenna manufacturers. 
       FIGS. 4   a ,  4   b , and  4   c  are side, end and top views of Antenna  9  assembled with base  11  and dock  12 . Cable  13  from Antenna  9  is shown entering base  11  where it is wound around internal groove  14  shown in  FIG. 1 . 
       FIG. 5  is an isometric view of the antenna assembly showing the antenna  9  and dock  12 . Cable  13  from antenna  9  enter an opening in base  11 . A cable from an electronic device (not illustrated) can be routed through openings  21  of dock  12  or may enter under dock  12  though opening  21  ( FIG. 2A  and  FIG. 2B ). 
     For the purpose of this disclosure, devices using cables to connect to antenna are described. Some integrated antenna devices are self contained and may receive information on certain frequencies and retransmit information to other equipment by infrared or different radio signals without the use of a cable. Variation of the embodiments described can be used as mounting systems for such wireless systems. The embodiment examples presented serve to convey additional complexities that are solved and the use of wired devices does not limit the scope of the device that can be mounted using the systems described.