Patent Publication Number: US-2017350555-A1

Title: Portable electronic device holders with stand system and methods to manufacture portable electronic device holders with stand system

Description:
CROSS-REFERENCE 
     This claims the benefit of U.S. Provisional Application No. 62/481,771, filed May 4, 2017, U.S. Provisional Application No. 62/468,508, filed Mar. 8, 2017, and U.S. Provisional Application No. 62/380,300, filed Aug. 26, 2016, and is also a continuation in part of U.S. patent application Ser. No. 14/738,731, filed Jun. 12, 2015, which is a continuation in part of U.S. patent application Ser. No. 14/015,172, filed Aug. 30, 2013, now U.S. Pat. No. 9,108,096, all the contents of which are incorporated herein by reference. 
    
    
     FIELD OF THE INVENTION 
     The present disclosure relates generally to sport accessories, and more particularly, to portable electronic device holders and methods to manufacture portable electronic device holders. 
     BACKGROUND OF THE INVENTION 
     In golf, some training devices may be an integral part of a golf club (i.e., built-in). That is, the golf club may not be readily used for play in a round of golf. Alternatively, other training devices may only function as a golf training device such that the training device may not be used for other purposes. Instead of the types of training devices for golf mentioned above, individuals may use already-owned and/or everyday-used portable electronic devices as a training device for golf. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  shows a perspective view of a portable electronic device holder according to one embodiment. 
         FIG. 2  shows a rear perspective view of the portable electronic device holder of  FIG. 1 . 
         FIG. 3  shows a rear perspective view of the portable electronic device holder of  FIG. 1  shown attached to a golf club shaft. 
         FIG. 4  shows a top view of the portable electronic device holder of  FIG. 1 . 
         FIG. 5  shows a bottom view of the portable electronic device holder of  FIG. 1 . 
         FIG. 6  shows a side view of the portable electronic device holder of  FIG. 1 . 
         FIG. 7  shows another side view of the portable electronic device holder of  FIG. 1  shown attached to a golf club shaft. 
         FIGS. 8 and 9  show side views of a section of the portable electronic device holder of  FIG. 1 . 
         FIG. 10  shows a front view of the portable electronic device holder of  FIG. 1  with an exemplary portable electronic device mounted on the portable electronic device holder. 
         FIG. 11  shows a method of manufacturing a portable electronic device holder according to one embodiment. 
         FIG. 12  shows a perspective view of a portable electronic device holder according to another embodiment. 
         FIG. 13  shows a rear perspective view of the portable electronic device holder of  FIG. 12 . 
         FIG. 14  shows a bottom view of the portable electronic device holder of  FIG. 12 . 
         FIG. 15  shows a top view of the portable electronic device holder of  FIG. 12 . 
         FIG. 16  shows a side view of the portable electronic device holder of  FIG. 12 . 
         FIG. 17  shows another side view of the portable electronic device holder of  FIG. 12  shown attached to a golf club shaft. 
         FIGS. 18 and 19  show side views of a section of the portable electronic device holder of  FIG. 12 . 
         FIG. 20  shows a front view of the portable electronic device holder of  FIG. 12  with an exemplary portable electronic device mounted on the portable electronic device holder. 
         FIG. 21  shows a perspective view of a stand system for an exemplary portable electronic device holder. 
         FIG. 22  shows an enlarged perspective view of the stand system of  FIG. 21 . 
         FIG. 23  shows a perspective view of a coupling member of the stand system of  FIG. 21 . 
         FIG. 24  shows another perspective view of the coupling member of  FIG. 23 . 
         FIG. 25  shows a bottom view of the coupling member of  FIG. 24 . 
         FIG. 26  shows a front perspective view of a portable electronic device holder according to another embodiment. 
         FIG. 27  shows a rear perspective view of the portable electronic device holder of  FIG. 26 . 
         FIG. 28  shows a front perspective view of a portable electronic device holder according to another embodiment. 
         FIG. 29  shows a rear perspective view of the portable electronic device holder of  FIG. 28 . 
         FIG. 30  shows a front perspective view of a portable electronic device holder according to another embodiment. 
         FIG. 31  shows a rear perspective view of the portable electronic device holder of  FIG. 30 . 
         FIG. 32  shows a front perspective view of a portable electronic device holder according to another embodiment. 
         FIG. 33  shows a top view of the portable electronic device holder of  FIG. 32 . 
         FIG. 34  shows a rear view of the portable electronic device holder of  FIG. 32 . 
         FIG. 35  shows a side view of the portable electronic device holder of  FIG. 32 . 
         FIG. 36  shows another front perspective view of the portable electronic device holder of  FIG. 32 . 
     
    
    
     DETAILED DESCRIPTION 
     In general, apparatus, methods, and articles of manufacture associated with a portable electronic device holder are described herein. The methods, apparatus, and articles of manufacture described herein are not limited in this regard. 
       FIGS. 1-10  illustrate a portable electronic device holder  100  according to an embodiment of the present invention. The device holder  100  may include a body portion  102 , a first clamp portion  104  and a second clamp portion  106 . As described in detail below, the portable electronic device holder  100  may be configured to removably attach a portable electronic device  1000  (generally shown in  FIGS. 7 and 10 ) such as a wireless communication device and/or a portable media player to a golf club shaft  800  (generally shown in  FIGS. 3-5, 7 and 10 ) of a golf club (e.g., a putter-type golf club). For example, the portable electronic device  1000  may be a media player (e.g., an IPOD® mobile digital device from Apple Inc., Cupertino, Calif.), a wireless telephone (e.g., an IPHONE® mobile digital device from Apple Inc., Cupertino, Calif.), a handheld or tablet computer (e.g., an IPAD® from Apple Inc., Cupertino, Calif.), a global positioning system (GPS) device, a game console device, a digital camera, a video camera, and/or any other electronic device that may be include any type of sensor (e.g., accelerometer, gyroscope, microphone, CCD imaging sensor, CMOS imaging sensor, etc.) for sensing and collecting data and/or images. The portable electronic device  1000  may be configured to operate as a training device (e.g., the portable electronic device  1000  may include a processor to execute a software application), such as a golf training device. In addition or alternatively, the portable electronic device  1000  may be configured to operate as a telephone or a speaker broadcasting music. As shown by the example of  FIGS. 7 and 10 , a portable electronic device  1000  may include a bottom portion  1002 , a top portion  1004 , a first side portion  1006 , a second side portion  1008  that is opposite to the first side portion  1006 , a display portion  1010  and a back portion  1012  (shown in  FIG. 7 ). However, a portable electronic device may be in any shape such as oval, circular, triangular, spherical or other geometric and non-geometric shapes. Accordingly, a first clamp portion  104  and a second clamp portion  106  may be configured to provide engagement with any portable electronic device. The apparatus and articles of manufacture described herein are not limited in this regard. 
     The first clamp portion  104  includes a first clamp body  110  and a first clamp arm  112  that is connected to the first clamp body  110  and extends transverse or generally perpendicular to the first clamp body  110 . At the free end of the first clamp arm  112 , the first clamp arm  112  includes a lip portion  114  extending generally transverse to the first clamp arm  112  and toward the second clamp portion  106 . The first clamp body  110  includes a generally circular or curved channel  116  on a back side of the clamp body  110 , which may be the side of the clamp body  110  that is opposite to the side of the first clamp body  110  to which the first clamp arm  112  is connected. The clamp body  110  includes a first rod attachment portion  118  and a second rod attachment portion  119 , which may be located on opposite sides of the curved channel  116 . A first rod  120  is attached to the first rod attachment portion  118  (shown in  FIG. 8 ) and a second rod  121  is attached to the second rod attachment portion  119  (shown in  FIG. 9 ). Accordingly, as shown in  FIG. 1 , two generally parallel and spaced apart rods  120  and  121  are attached to and extend from the first clamp body  110 . The first rod  120  and the second rod  121  may be constructed with the clamp body  110  or constructed as separate pieces that are attached to the clamp body  110 . For example, as shown in  FIGS. 8 and 9 , the first rod  120  and the second rod  121  may be separately constructed parts that are inserted into slots or bores of the first rod attachment portion  118  and the second rod attachment portion  119  and attached to the first rod attachment portion  118  and the second rod attachment portion  119 , respectively. The first clamp portion  104  may include more than one clamp arm. For example the first clamp portion  104  may include a pair of spaced apart clamp arms (not shown). The methods, apparatus, and articles of manufacture described herein are not limited in this regard. 
     The body portion  102  includes a first end portion  126  and a second end portion  128 . The first end portion  126  and the second end portion  128  may define a length of the body portion  102 . The body portion  102  includes a front surface  130  that may extend from the first end portion  126  to the second end portion  128 , and a generally curved channel  132  on a back portion  131 , which is a portion of the body portion  102  that is behind the front surface  130 . The body portion  102  further includes a first rod housing  134  and a second rod housing  135 , which may be located on opposite sides of the curved channel  132  and extend along the length of the body portion  102 . The first rod housing  134  includes a first rod passage  140  (shown in  FIG. 8 ) that may be configured to accommodate a portion of the first rod  120  or the entire first rod  120 . The second rod housing  135  includes a second rod passage  141  (shown in  FIG. 9 ) that may be configured to accommodate a portion of second rod  121  or the entire second rod  121 . Accordingly, the first clamp portion  104  may be movable from a position where the first clamp portion  104  abuts the body portion  102  and the first rod  120  and the second rod  121  are substantially inside the first rod passage  140  and the second rod passage  141 , respectively, to a position where the first clamp portion  104  is spaced apart from the body portion  102  (shown for example in  FIG. 1 ) and the first rod  120  and the second rod  121  are partially inside the first rod passage  140  and the second rod passage  141 , respectively. 
     Referring to  FIGS. 8 and 9 , the first rod housing  134  includes a first aperture  200  at the first end portion  126 . Portions of the first rod  120  may traverse in and out the first rod passage  140  through the first aperture  200 . Similarly, the second rod housing  135  includes a second aperture  202  at the first end portion  126 . Portions of the second rod  121  may traverse in and out of the second rod passage  141  through the second aperture  202 . A diameter of each aperture  200  and  202  may be slightly greater than the outer diameter of the first rod  120  and the second rod  121 , but is smaller than the inner diameter of the first rod passage  140  and the second rod passage  141 , respectively. At a position along the first rod  120  or at the free end of the first rod  120 , the first rod  120  includes a first stop  220 , which may be cylindrical-shaped or disc-shaped. The stop  220  may have a diameter that is greater than the diameter of the first rod  120  and slightly smaller than the inner diameter of the first rod passage  140 . Accordingly, a first annular passage  204  may be defined in the first rod passage  140  between the first stop  220  and the first aperture  200 . Movement of the first rod  120  through the first rod passage  140  changes the length of the first annular passage  204 . Similarly, at a position along the second rod  121  or at the free end of the second rod  121 , the second rod  121  includes a second stop  222 , which may be cylindrical-shaped or disc-shaped. The second stop  222  has a diameter that is greater than the diameter of the second rod  121  and slightly smaller than the inner diameter of the second rod passage  141 . Accordingly, a second annular passage  206  may be defined in the second rod passage  141  between the second stop  222  and the second aperture  202 . Movement of the second rod  121  through the second rod passage  141  changes the length of the second annular passage  206 . 
     A first spring  210  is disposed in the first annular passage  204 . The first spring  210  has a coil diameter that is smaller than the inner diameter of the first rod passage  140 , greater than the diameter of the first aperture  200  and smaller than the diameter of the first stop  220 . Accordingly, the first spring  210  is bound in the first annular passage  204 . Similarly, a second spring  212  is disposed in the second annular passage  206 . The second spring  212  has a coil diameter that is smaller than the inner diameter of the second passage  141 , greater than the diameter of the second aperture  202  and smaller than the diameter of the second stop  222 . Accordingly, the second spring  212  is bound inside the second annular passage  206 . 
     Movement of the first rod  120  in the first rod passage  140  changes the length of the first annular passage  204 . When the first rod  120  is moving in a direction out of the first rod passage  140 , the first stop  220  compresses the first spring  210  against the first end portion  126  (i.e., around the first aperture  200 ) such that the first spring  210  exerts a force on the first stop  220  opposite to the movement of the first rod  120 . When the first rod  120  is moving in a direction into the first rod passage  140 , the first stop  220  allows the first spring  210  to decompress such that the force exerted by the spring on the first stop  220  is reduced. 
     Movement of the second rod  121  in the second rod passage  141  changes the length of the second annular passage  206 . When the second rod  121  is moving in a direction out of the second rod passage  141 , the second stop  222  compresses the second spring  212  against the first end portion  126  (i.e., around the second aperture  202 ) such that the second spring  212  exerts a force on the second stop  222  opposite to the movement of the second rod  121 . When the second rod  121  is moving in a direction into the second rod passage  141 , the second stop  222  allows the second spring  212  to decompress such that the force exerted by the spring on the second stop  222  is reduced. 
     The second clamp portion  106  (shown for example in  FIGS. 1 and 2 ) includes a second clamp arm  250  and a third clamp arm  252  that may be spaced apart to collectively provide a sufficiently wide support for a portable electronic device such as the portable electronic device  1000 . Each of the second clamp arm  250  and the third clamp arm  252  extends transversely from the body portion  102 . The second clamp arm  250  may include a second lip portion  254  and the third clamp arm  252  may include a third lip portion  256 . Each of the second lip portion  254  and the third lip portion  256  may extend toward the first clamp portion  104 . The second clamp portion  106  may include a single clamp arm similar to the first clamp portion  104  or more than two clamp arms. Each clamp arm  250  and  252  may be fixed to the body portion  102  or be movable relative to the body portion  102  similar to the first clamp arm  112  of the first clamp portion  104 . The methods, apparatus, and articles of manufacture described herein are not limited in this regard. 
     When the first clamp portion  104  is abutting the body portion  102 , the first spring  210  and the second spring  212  may be compressed. Accordingly, the first clamp portion  104  may be pressed and maintained against the body portion  102  by the forces of the first spring  210  and the second spring  212 . When the first clamp portion  104  is moved or pulled away from the body portion  102 , a portion of the first rod  120  and a portion of the second rod  121  are moved out of the first passage  140  and the second passage  141  to reduce the length of the first annular passage  204  and the second annular passage  206 , respectively. Accordingly, the first spring  210  and the second spring  212  are further compressed in the first annular passage  204  and the second annular passage  206  to increase the forces in the first spring  210  and the second spring  212 , respectively. The first clamp portion  104  may be further moved or pulled away from the body portion  102  until the first spring  210  and the second spring  212  are fully compressed, i.e., can no longer be compressed. Thus, the first clamp portion  104  may be moved to any position from an initial position where the first clamp portion  104  is pressed against the body portion  102  and the springs  210  and  212  are compressed to a final position where the first spring  210  and the second spring  212  are fully compressed. The forces of the first spring  210  and the second spring  212  return the first clamp portion  104  to the initial position from any position between the initial position and the final position. The initial position of the first clamp portion  104  may define the smallest distance between the first clamp arm  112  and the second and third clamp arms  250  and  252 . The final position of the first clamp portion  104  may define the largest distance between the first clamp arm  112  and the second and third clamp arms  250  and  252 . 
     According to another embodiment, when the first clamp portion  104  is abutting the body portion  102 , i.e., the initial position, the first spring  210  and the second spring  212  may be expanded. The springs  210  and  212  may be positioned in the first rod passage  140  and the second rod passage  141  between the second end portion  106  and the stops  220  and  222 , respectively (not shown). The springs  210  and  212  are further expanded when the first clamp portion  104  is moved to any position from the initial position to the final position. The final position of the first clamp portion  104  may correspond to a position where the stops  220  and  222  contact the first end portion  104  (not shown). 
     The portable electronic device holder  100  can hold a portable electronic device between the first clamp arm  112  and the second and third clamp arms  250  and  252  by the clamp arms  112 ,  250  and  252  pressing on opposing surfaces, portions or sides of the portable electronic device with the forces of the first spring  210  and the second spring  212 . Referring to  FIGS. 6 and 7 , a first inner surface  113  of the first clamp arm  112  may define an acute angle  127  with the direction of the forces exerted on the first clamp portion  104  by the springs  210  and  212 . In  FIGS. 6 and 7 , the forces exerted on the first clamp portion  104  by the springs are shown to be generally in the same direction as the longitudinal axis  123  of the first rod  120  and/or the longitudinal axis  125  of the second rod  121 . In other words, the first inner surface  113  is downwardly inclined relative to the body portion  102 . Similarly, the second inner surface  117  of the second clamp arm  250  and the third inner surface  119  of the third clamp arm  252  may define an acute angle  129  with the longitudinal axis  123  and/or the longitudinal axis  125 . In other words, the second inner surface  117  and the third inner surface  119  are upwardly inclined relative to the body portion  102 . When the portable electronic device  1000  is pressed by the first inner surface  113 , the second inner surface  117  and the third inner surface  119 , the acute angles  127  and  129  cause a component of force to be exerted on the portable electronic device  1000  in a direction toward the body portion  102 . Thus, as the first clamp arm  112  and the second and third clamp arms  250  and  252  press on opposing surfaces, portions or sides of the portable electronic device  1000 , the portable electronic device may be pushed and/or maintained against the front surface  130  of the body portion  102 . 
     Portable electronic devices of varying sizes may be held by the portable electronic device holder  100  by moving the first clamp portion  104  between the initial position and the final position to increase or decrease the distance between the first clamp arm  112  and the second and third clamp arms  250  and  252 . For example, referring to  FIG. 10 , a rectangular portable electronic device  1000  may be held by the first clamp arm  112  and the second and third clamp arms  250  and  252  pressing against two opposing sides  1002  and  1004  of the portable electronic device  1000 . Alternatively, the portable electronic device  1000  may be held by the first clamp arm  112  and the second and third clamp arms  250  and  252  pressing against the two opposing sides  1006  and  1008  of the portable electronic device  1000  (not shown). In another example, a circular portable electronic device (not shown) may be held with the portable electronic device holder  100  by the first clamp arm  112  and the second and third clamp arms  250  and  252  engaging radially opposing perimeter edges, surfaces and/or portions of the circular electronic device. Accordingly, a portable electronic device having any shape may be held by the portable electronic device holder  100  as long as two opposing sides, surfaces and/or portions of the portable electronic device can be engaged and held by the first clamp arm  112  and the second and third clamp arms  250  and  252 . 
     A portable electronic device  1000  may be mounted on to the portable electronic device holder  100  by pulling the first clamp portion  104  away from the body portion  102  until the distance between the first lip portion  114  and the second and third lip portions  254  and  256  is greater than a distance between two opposing edges, surfaces and/or portions of the portable electronic device. The portable electronic device  1000  may then be inserted into the portable electronic device holder  100  by the back portion  1012  being moved toward the front surface  130  until the back portion  1012  abuts the front surface  130  and the bottom portion  1002  rests on the second and third clamp arms  250  and  252 . The first clamp arm  112  may then be released or moved toward the body portion  102  so that the first clamp arm  112  engages the second side  1004  of the portable electronic device. Alternatively, the first clamp portion  104  may be pulled away from the body portion  102  until the distance between the first clamp arm  112  and the second and third clamp arms  250  and  252  is greater than a distance between two opposing edges, surfaces and/or portions of the portable electronic device  1000 . The portable electronic device  1000  may then be inserted into the portable electronic device holder  100  by being slipped in-between the first clamp arm  112  and the second and third clamp arms  250  and  252  (i.e., the back portion  1012  being moved generally parallel to the front surface  130 ) and the bottom portion  1002  being rested on the second and third clamp arms  250  and  252 . The first clamp arm  112  may then be released or moved toward the body portion  102  so that the first clamp arm  112  engages the top portion  1004  of the portable electronic device. 
     The forces generated by the compression of the first spring  210  and the second spring  212  cause the first clamp arm  112  and the second and third clamp arms  252  and  254  to press against the portable electronic device  1000  and frictionally hold the portable electronic device  1000  in the portable electronic device holder  100 . The first clamp arm  112  and/or the second and third clamp arms  250  and  252  may include a frictional material and/or surface texture that may enhance the frictional engagement between the clamp arms  112 ,  250  and  252  and the portable electronic device  1000 . For example, each of the clamp arms  112 ,  250  and  252  may include a rubber or high density foam pad that engages the portable electronic device  1000 . According to another example, the portion of each of the clamp arms  112 ,  250  and  252  that engages the portable electronic device  1000  may have a certain texture that enhances the frictional engagement with the portable electronic device  1000 . 
     The first lip portion  114  and the second and third lip portions  254  and  256  may engage a front surface or the display portion  1010  of the portable electronic device  1000  to further assist in holding the portable electronic device  1000  in the portable electronic device holder  100 . To remove the portable electronic device  1000  from the portable electronic device holder  100 , the first clamp portion  104  may be moved or pulled away from the body portion  102  so that the first clamp arm  112  is sufficiently spaced from the first side  1002  of the portable electronic device  1000  to allow removal of the portable electronic device  1000  from the portable electronic device holder  100 . 
     The portable electronic device holder  100  may be mounted on a shaft of sports equipment or any cylindrical object. Referring to  FIGS. 2-5, 7 and 10 , the portable electronic device holder  100  may be mounted on a golf club shaft  800 . The portable electronic device holder  100  may engage the golf club shaft  800  at any location on the golf club shaft  800 . The curved channel  132  of the body portion  102  is located opposite to the front surface  130 . Additionally, the curved channel  116  of the first clamp portion  104  may be linearly aligned with the curved channel  132  of the body portion  102 . The curved channels  132  and  116  collectively define an elongated substantially linear channel having a concave curvature relative to the front surface  130 . Furthermore, the length of the channel defined by the curved channel  132  and the curved channel  116  can increase or decrease based on the position of the first clamp portion  104  relative to the body portion  102 . The curved channels  132  and  116  can receive a longitudinal portion of a shaft such as a golf club shaft  800 . The channels  132  and  116  may be tapered from the first clamp portion  104  to the second end portion  106  to generally correspond to a taper in the golf club shaft  800 . For example, the diameter of the golf club shaft  800  may decrease from the grip portion (not shown) to the head portion (not shown). Accordingly, the diameter or width of the channels  132  and  116  may decrease from the first clamp portion  104  to the second end portion  106 . The channels  132  and  116  may have any dimensional variation from the first clamp portion  104  to the second end portion  106  to correspond to a similar dimensional variation in the golf club shaft  800 . Although the channels  132  and  116  are described and shown as curved channels, the channels  132  and  116  may have any shape that corresponds to the shape of a certain shaft. For example, the channels  132  and  116  may have an oval shape to receive a shaft having an oval cross section. In another example, the channels  132  and  116  may have a triangular shape to receive a shaft having a triangular shape. The methods, apparatus, and articles of manufacture described herein are not limited in this regard. 
     Referring to  FIGS. 2-7 , the portable electronic device holder  100  may further include at least a pair of arms  300  and  302  that are spaced apart and disposed on opposite sides of the channel  132 . The arms  300  and  302  and the curved channel  132  may collectively define a generally cylindrical passage  306  for receiving a portion of the golf club shaft  800  through an opening  308  that is defined by the space between the arms  300  and  302 . According to one example, the arms  300  and  302  may be shaped to substantially continue the curvature of the curved channel  132 . For example, as shown in  FIGS. 4 and 5 , if the cross section of the channel  132  defines a radial portion of a circle, then the arms  300  and  302  may define other radial portions of the same circle. Movement of the arms  300  and  302  from a rest position to widen or narrow the opening  308  can elastically bend the body portion  102 , e.g., widen or narrow the channel  132 . Accordingly, the elastic bending of the body portion  102  provides a biasing force for returning the arms  300  and  302  to the rest position. Alternatively, the arms  300  and  302  may be elastically flexible and/or be flexibly attached to the body portion  102 . Each arm  300  and  302  may also include an expansion tab  310  and  312  that may extend along at least a portion of the arm  300  and  302 , respectively. Each expansion tab  310  and  312  extends outwardly from the corresponding arm  300  and  302  to effectively enlarge the opening  308 . 
     The generally transverse orientation of each expansion tab  310  and  312  relative to a corresponding direction of the arm  300  and  302 , respectively, provides for the elastic bending of the arms  300  and  302 , the channel  132  and/or the body portion  102  when a golf club shaft  800  is pressed against the expansion tabs  310  and  312 . Accordingly, when a golf club shaft  800  is pressed against the expansion tabs  310  and  312 , the golf club shaft  800  presses the expansion tabs  310  and  312  outward to elastically enlarge the opening  308  so that the golf club shaft  800  may be received in the cylindrical passage  306 . Upon the golf club shaft  800  being inserted in the cylindrical passage  306 , the elastic restoring force of the arms  300  and  302 , the channel  132  and/or the body portion  102  move or snap the arms  300  and  302  back toward the pre-expanded position to frictionally engage the golf club shaft  800  in cooperation with the curved channel  132 . The curved channel  132  and or the arms  300  and  302  may collectively define a partial oval cross-sectional shape, circular cross-sectional shape, rectangular cross-sectional shape, or any other shape that may be similar to correspondingly shaped shaft. The methods, apparatus, and articles of manufacture described herein are not limited in this regard. 
     A portable electronic device may be mounted on the golf club shaft  800  with the portable electronic device holder  100  to capture still and/or video images of an area around the portable electronic device; measure and/or determine relative and/or absolute linear motion, velocity and/or acceleration of the portable electronic device; measure and/or determine relative and/or absolute angular motion, velocity and/or acceleration of the portable electronic device; and/or measure and/or determine relative and/or absolute position of the portable electronic device. Referring to  FIGS. 4, 5 and 7 , the curved channel  132  and the curved channel  116  allow the axis  830  of the golf club shaft  800  to be located close to the front surface  130  of the portable electronic device holder  100 , hence close to the portable electronic device  1000  when the portable electronic device  1000  is attached to the golf club shaft  800  with the portable electronic device holder  100 . Accordingly, any of the above-described motion, velocity, acceleration and/or position measurements and/or determinations associated with the portable electronic device  1000  may be interpreted as motion, velocity, acceleration and/or position measurements and/or determinations associated with the golf club shaft  800 . The distance  330  (shown in  FIG. 1 ) between the bottom of the curved channel  132  and the front surface  130  (i.e., the smallest thickness of the material between the front surface  130  and the lowest point on the curved channel  132 ) may be optimally minimized based on the materials and/or methods of construction of the portable electronic device holder  100 . For example, for a device holder constructed from a highly rigid material such as titanium, the distance may be smaller than a device holder constructed from a less rigid material such as plastic. Thus, the size and curvature of the curved channel  132  and the distance  330  may be optimally determined to place the axis  830  of the golf club shaft  800  as close as possible to the portable electronic device  1000 . 
       FIGS. 12-20  illustrate another exemplary embodiment of the portable electronic device holder  400 . Portable electronic device holder  400  may be similar to portable electronic device holder  100 , with like numbers referencing similar components. The portable electronic device holder  400  may include a body portion  402 , a first clamp portion  404  and a second clamp portion  406 . The portable electronic device holder  400  may be configured to removably attach a portable electronic device  1000  such as a wireless communication device and/or a portable media player to a golf club shaft  800  (generally shown in  FIGS. 17 and 18 ) of a golf club (e.g., a putter-type golf club), similar to the portable electronic device holder  100 . Accordingly, first clamp portion  404  and a second clamp portion  406  may be configured to provide engagement with any portable electronic device. The apparatus and articles of manufacture described herein are not limited in this regard. 
     The first clamp portion  404  includes a first clamp body  410  and a first clamp arm  412  that is connected to the first clamp body  410  and extends substantially transverse to the first clamp body  410 . The first clamp arm  412  has an arcuate shape defining a curved surface  414  (see  FIG. 16 ). The curved surface  414  allows the free end of the first clamp arm  412  to extend toward the second clamp portion  406  such that the free end of the first clamp arm  412  is closer to the second clamp portion  406  than the attached end of the first clamp arm  412 . 
     The clamp body  410  includes a first rod attachment portion  418  and a second rod attachment portion  419 . A first rod  420  is attached to the first rod attachment portion  418  and a second rod  421  is attached to the second rod attachment portion  419  (shown in  FIG. 12 ). Accordingly, as shown in  FIG. 12 , two generally parallel and spaced apart rods  420  and  421  are attached to and extend from the first clamp body  410 . The first rod  420  and the second rod  421  may be constructed with the clamp body  410  or constructed as separate pieces that are attached to the clamp body  410 . For example, as shown in  FIGS. 12 and 13 , the first rod  420  and the second rod  421  may be separately constructed parts that are inserted into slots or bores of the first rod attachment portion  418  and the second rod attachment portion  419  and attached to the first rod attachment portion  418  and the second rod attachment portion  419 , respectively. In the illustrated embodiment, the first clamp portion  404  includes the first clamp arm  412 . In other embodiments, the first clamp portion  404  may include more than one clamp arm. For example, the first clamp portion  404  may include a pair of spaced apart clamp arms (not shown). The methods, apparatus, and articles of manufacture described herein are not limited in this regard. 
     The body portion  402  includes a first end portion  426  and a second end portion  428 . The first end portion  426  and the second end portion  428  may define a length of the body portion  402 . The body portion  402  includes a front surface  430  and a back surface  431  that may extend from the first end portion  426  to the second end portion  428 . The body portion  402  further includes a first rod housing  434  and a second rod housing  435 , which may extend along the length of the body portion  402 . The first rod housing  434  includes a first rod passage  440  ( FIG. 18 ) that is configured to accommodate a portion of the first rod  420  or the entire first rod  420 . The second rod housing  435  includes a second rod passage  441  ( FIG. 19 ) that is configured to accommodate a portion of second rod  421  or the entire second rod  421 . Accordingly, the first clamp portion  404  may be movable from a position where the first clamp portion  404  abuts the body portion  402  and the first rod  420  and the second rod  421  are substantially inside the first rod passage  440  and the second rod passage  441 , respectively, to a position where the first clamp portion  404  is spaced apart from the body portion  402  (shown for example in  FIG. 12 ). The first rod  420  and the second rod  421  are partially inside the first rod passage  440  and the second rod passage  441 , respectively. 
     Referring to  FIGS. 18 and 19 , the first rod housing  434  includes a first aperture  500  at the first end portion  426 . Portions of the first rod  420  may traverse in and out the first rod passage  440  through the first aperture  500 . Similarly, the second rod housing  435  includes a second aperture  502  at the first end portion  426 . Portions of the second rod  421  may traverse in and out of the second rod passage  441  through the second aperture  502 . A diameter of each aperture  500 ,  502  may be slightly greater than the outer diameter of the first rod  420  and the second rod  421 , but smaller than the inner diameter of the first rod passage  440  and the second rod passage  441 , respectively. At a position along the first rod  420  or at the free end of the first rod  420 , the first rod  420  includes a first stop  520  which may be cylindrical-shaped or disc-shaped. The first stop  520  may have a diameter that is greater than the diameter of the first rod  420  and slightly smaller than the inner diameter of the first rod passage  440 . Accordingly, a first annular passage  504  may be defined in the first rod passage  440  between the first stop  520  and the first aperture  500 . Movement of the first rod  420  through the first rod passage  440  changes the length of the first annular passage  504 . Similarly, at a position along the second rod  421  or at the free end of the second rod  421 , the second rod  421  includes a second stop  522  which may be cylindrical-shaped or disc-shaped. The second stop  522  has a diameter that is greater than the diameter of the second rod  421  and slightly smaller than the inner diameter of the second rod passage  441 . Accordingly, a second annular passage  506  may be defined in the second rod passage  441  between the second stop  522  and the second aperture  502 . Movement of the second rod  421  through the second rod passage  441  changes the length of the second annular passage  506 . 
     A first spring  510  is disposed in the first annular passage  504 . The first spring  510  has a coil diameter that is smaller than the inner diameter of the first rod passage  440 , greater than the diameter of the first aperture  500  and smaller than the diameter of the first stop  520 . Accordingly, the first spring  510  is bound in the first annular passage  504 . Similarly, a second spring  512  is disposed in the second annular passage  506 . The second spring  512  has a coil diameter that is smaller than the inner diameter of the second rod passage  441 , greater than the diameter of the second aperture  502  and smaller than the diameter of the second stop  522 . Accordingly, the second spring  512  is bound inside the second annular passage  506 . 
     Movement of the first rod  420  in the first rod passage  440  changes the length of the first annular passage  504 . When the first rod  420  is moving in a direction out of the first rod passage  504 , the first stop  520  compresses the first spring  510  against the first end portion  426  (i.e., around the first aperture) such that the first spring  510  exerts a force on the first stop  520  opposite to the movement of the first rod  420 . When the first rod  420  is moving in a direction into the first rod passage  440 , the first stop  520  allows the first spring  510  to decompress such that the force exerted by the first spring  510  on the first stop  520  is reduced. 
     Movement of the second rod  421  in the second rod passage  441  changes the length of the second annular passage  506 . When the second rod  421  is moving in a direction out of the second rod passage  441 , the second stop  522  compresses the second spring  512  against the first end portion  426  (i.e., around the second aperture) such that the second spring  512  exerts a force on the second stop  522  opposite to the movement of the second rod  421 . When the second rod  421  is moving in a direction into the second rod passage  441 , the second stop  522  allows the second spring  512  to decompress such that the force exerted by the second spring  512  on the second stop  522  is reduced. 
     Referring to  FIG. 12 , the second clamp portion  406  includes a second clamp arm  550  that extends transversely from the body portion  402 . In other embodiments, the second clamp portion  406  may include more than one clamp arm. For example, the second clamp portion  406  may include a pair of spaced apart clamp arms (not shown). Further, in the illustrated embodiment, the second clamp arm  406  is substantially perpendicular to the body portion  402 , thereby allowing the portable electronic device holder  400  to receive a portable electronic device of any width and thickness. The methods, apparatus, and articles of manufacture described herein are not limited in this regard. 
     When the first clamp portion  404  is abutting the body portion  402 , the first spring  510  and the second spring  512  may be compressed. Accordingly, the first clamp portion  404  may be pressed and maintained against the body portion  402  by the forces of the first spring  510  and the second spring  512 . When the first clamp portion  404  is moved or pulled away from the body portion  402 , a portion of the first rod  420  and a portion of the second rod  421  are moved out of the first rod passage  440  and the second rod passage  441  to reduce the length of the first annular passage  504  and the second annular passage  506 , respectively. Accordingly, the first spring  510  and the second spring  512  are further compressed in the first annular passage  504  and the second annular passage  506  to increase the forces in the first spring  510  and the second spring  512 , respectively. The first clamp portion  404  may be further moved or pulled away from the body portion  402  until the first spring  510  and the second spring  512  are fully compressed, i.e., can no longer be compressed. Thus, the first clamp portion  404  may be moved to any position from an initial position where the first clamp portion  404  is pressed against the body portion  402  and the springs  510 ,  512  are compressed to a final position where the first spring  510  and the second spring  512  are fully compressed. The forces of the first spring  510  and the second spring  512  return the first clamp portion  404  to the initial position from any position between the initial position and the final position. The initial position of the first clamp portion  404  may define the smallest distance between the first clamp arm  412  and the second clamp arm  550 . The final position of the first clamp portion  404  may define the largest distance between the first clamp arm  412  and the second clamp arm  550 . 
     According to another embodiment, when the first clamp portion  404  is abutting the body portion  402 , i.e., the initial position, the first spring  510  and the second spring  512  may be expanded. The springs  510 ,  512  may be positioned in the first rod passage  440  and the second rod passage  441  between the second end portion  406  and the first and second stops,  520 ,  522 , respectively (not shown). The springs  510 ,  512  are further expanded when the first clamp portion  404  is moved to any position from the initial position to the final position. The final position of the first clamp portion  404  may correspond to a position where the stops  520 ,  522  contact the first end portion  404  (not shown). 
     The portable electronic device holder  400  can hold a portable electronic device  1000  between the first clamp arm  412  and the second clamp arm  550  by the clamp arms  412  and  550  pressing on opposing surfaces, portions or sides of the portable electronic device  1000  with the forces of the first spring  510  and the second spring  512 . The forces exerted on the first clamp portion  404  by the first and the second spring  510 ,  512  are generally in the same direction as a longitudinal axis  423  ( FIG. 16 ) of the first rod  420  and/or a longitudinal axis  425  ( FIG. 17 ) of the second rod  421 . The longitudinal forces exerted on the first clamp portion  404  by the springs  510 ,  512  aid in securing the portable electronic device  1000  within the portable electronic device holder  400  by preventing the portable electronic device  1000  from moving relative to the portable electronic device holder  400  in the direction of the longitudinal forces, due to the springs  510 ,  512 . Thus, as the first clamp arm  412  and the second clamp arm  550  press on opposing surfaces, portions or sides of the portable electronic device  1000 , the portable electronic device  1000  may be pushed, maintained, and/or secured between the first clamp portion  404  and the second clamp portion  406 . Further, the curved surface  414  exerts a force generally perpendicular to the longitudinal axis  423  ( FIG. 16 ) of the first rod  420  and/or the longitudinal axis  425  ( FIG. 17 ) of the second rod  421 , thereby further securing the portable electronic device  1000  in the portable electronic device holder  400  by preventing the portable electronic device  1000  from moving relative to the portable electronic device holder  400  in a direction of the perpendicular force, due to the downward inclination of the curved surface  414  relative to the body portion  402 . When the portable electronic device  1000  is pressed by the first clamp arm  412  and the second clamp arm  550 , the curved surface  414  exert a component of force on the portable electronic device  1000  in a direction toward the body portion  402 . Therefore, the curved surface  414  of the portable electronic device holder  400  provides the same function as the first lip portion  114 , the second lip portion  254 , and the third lip portion  256  of the portable electronic device holder  100 . In other words, the curved surface  414  and the first, the second and the third lip portions  114 ,  254 ,  256  all secure the portable electronic device  1000  within the portable electronic device holder by preventing movement of the portable electronic device  1000  relative to the portable electronic device holder in a direction generally perpendicular to the longitudinal axes  123 ,  423 ,  125 ,  425  and/or the front surface  430  of the body portion  402 . 
     Portable electronic devices of varying sizes may be held by the portable electronic device holder  400  by moving the first clamp portion  404  between the initial position and the final position to increase or decrease the distance between the first clamp arm  412  and the second clamp arm  550 . For example, referring to  FIG. 20 , a rectangular portable electronic device  1000  may be held by the first clamp arm  412  and the second clamp arm  550  pressing against two opposing sides  1002  and  1004  of the portable electronic device  1000 . Alternatively, the portable electronic device  1000  may be held by the first clamp arm  412  and the second clamp arm  550  pressing against the two opposing sides  1006  and  1008  of the portable electronic device  1000  (not shown). In another example, a circular portable electronic device (not shown) may be held with the portable electronic device holder  100  by the first clamp arm  412  and the second clamp arm  550  engaging radially opposing perimeter edges, surfaces and/or portions of the circular electronic device. Accordingly, a portable electronic device having any shape may be held by the portable electronic device holder  400  as long as two opposing sides, surfaces and/or portions of the portable electronic device can be engaged and held by the first clamp arm  412  and the second clamp arm  550 . 
     A portable electronic device  1000  may be mounted on to the portable electronic device holder  100  by pulling the first clamp portion  404  away from the body portion  402  until the distance between the first clamp arm  412  and the second clamp arm  550  is greater than a distance between two opposing edges, surfaces and/or portions of the portable electronic device. The portable electronic device  1000  may then be inserted into the portable electronic device holder  400  by the back portion (not shown) being moved toward the front surface  430  until the bottom portion  1002  rests on the second clamp arm  550 . The first clamp arm  412  may then be released or moved toward the body portion  402  so that the first clamp arm  412  engages the second side  1004  of the portable electronic device. Alternatively, the first clamp portion  404  may be pulled away from the body portion  402  until the distance between the first clamp arm  412  and the second clamp arm  550  is greater than a distance between two opposing edges, surfaces and/or portions of the portable electronic device  1000 . The portable electronic device  1000  may then be inserted into the portable electronic device holder  400  by being slipped in-between the first clamp arm  412  and the second clamp arm  550  (i.e., the back portion being moved generally parallel to the front surface  430 ) and the bottom portion  1002  being rested on the second clamp arm  550 . The first clamp arm  412  may then be released or moved toward the body portion  402  so that the first clamp arm  412  engages the top portion  1004  of the portable electronic device. 
     The forces generated by the compression of the first spring  510  and the second spring  512  cause the first clamp arm  412  and the second clamp arm  550  to press against the portable electronic device  1000  and frictionally hold the portable electronic device  1000  in the portable electronic device holder  400 . The longitudinal forces exerted on the first clamp portion  404  by the springs  510 ,  512  aid in securing the portable electronic device  1000  within the portable electronic device holder  400  by preventing the portable electronic device  1000  from moving relative to the portable electronic device holder  400  in the direction of the longitudinal forces, due to the springs  510 ,  512 . Further, the curved surface  414  exerts a force generally perpendicular to the longitudinal axis  423  ( FIG. 16 ) of the first rod  420  and/or the longitudinal axis  425  ( FIG. 17 ) of the second rod  421 , thereby further securing the portable electronic device  1000  in the portable electronic device holder  400  by preventing the portable electronic device  1000  from moving relative to the portable electronic device holder  400  in a direction of the perpendicular force, due to the downward inclination of the curved surface  414  relative to the body portion  402 . The first clamp arm  412  and/or the second clamp arm  550  may include a frictional material and/or surface texture that may enhance the frictional engagement between the clamp arms  412 ,  550  and the portable electronic device  1000  and/or provide vibration damping and sound reduction during use. For example, each of the clamp arms  412 ,  550  may include a rubber or high density foam pad that engages the portable electronic device  1000 . According to another example, the portion of each of the clamp arms  412 ,  550  that engages the portable electronic device  1000  may have a certain texture that enhances the frictional engagement with the portable electronic device  1000 . 
     To remove the portable electronic device  1000  from the portable electronic device holder  400 , the first clamp portion  404  may be moved or pulled away from the body portion  402  so that the first clamp arm  412  is sufficiently spaced from the first side  1002  of the portable electronic device  1000  to allow removal of the portable electronic device  1000  from the portable electronic device holder  400 . 
     Referring to  FIGS. 13-15 , the portable electronic device holder  400  may further include at least a pair of arms including a first arm  600  and a second arm  602  that are spaced apart and positioned on the back surface  431  of the body portion  402 . The arms  600  and  602  may be fixedly attached to the back surface  431  of the body portion  402 . The arms  600  and  602  define an opening  608  capable of expanding to receive a portion of the golf club shaft  800 . The arms  600  and  602  may be elastically flexible and/or be flexibly attached to the body portion  402 . Each arm  600  and  602  may also include an expansion tab  610  and  612  that may extend along at least a portion of the arm  600  and  602 , respectively. Each expansion tab  610  and  612  extends outwardly from the corresponding arm  600  and  602  to effectively enlarge the opening  608 . 
     The generally transverse orientation of each expansion tab  610  and  612  relative to a corresponding direction of the arm  600  and  602 , respectively, provides for the elastic bending of the arms  600  and  602  when a golf club shaft  800  is pressed against the expansion tabs  610  and  612 . Accordingly, when a golf club shaft  800  is pressed against the expansion tabs  610  and  612 , the golf club shaft  800  presses the expansion tabs  610  and  612  outward to elastically enlarge the opening  608  so that the golf club shaft  800  may be received in the opening  608 . Upon the golf club shaft  800  being inserted in the opening  608 , the elastic restoring force of the arms  600  and  602  move or snap the arms  600  and  602  back toward the pre-expanded position to frictionally engage the golf club shaft  800  in the opening  608 . The arms  600  and  602  may collectively define a partial oval cross-sectional shape, circular cross-sectional shape, rectangular cross-sectional shape, or any other shape that may be similar to correspondingly shaped shaft. The methods, apparatus, and articles of manufacture described herein are not limited in this regard. 
     The portable electronic device holder  400  may be mounted on a shaft of sports equipment or any cylindrical object. The portable electronic device holder  400  may be mounted on the golf club shaft  800 . The portable electronic device holder  400  may engage the golf club shaft  800  at any location on the golf club shaft  800 . A portable electronic device may be mounted on the golf club shaft  800  with the portable electronic device holder  400  to capture still and/or video images of an area around the portable electronic device; measure and/or determine relative and/or absolute linear motion, velocity and/or acceleration of the portable electronic device; measure and/or determine relative and/or absolute angular motion, velocity and/or acceleration of the portable electronic device; and/or measure and/or determine relative and/or absolute position of the portable electronic device. Any of the above-described motion, velocity, acceleration and/or position measurements and/or determinations associated with the portable electronic device  1000  may be interpreted as motion, velocity, acceleration and/or position measurements and/or determinations associated with the golf club shaft  800 . 
       FIGS. 26-31  illustrate further embodiments of a portable electronic device holder  1100 ,  1200 , and  1300 . The portable device holder  1100 ,  1200 ,  1300  comprises a body portion  1102 ,  1202 ,  1302  and a base  1104 ,  1204 ,  1304 . The portable electronic device holder  1100 ,  1200 ,  1300  may be configured to removably attach a portable electronic device  1000  such as a wireless communication device and/or portable media player to a golf club shaft  800  of a golf club (e.g., a putter-type golf club), similar to the portable electronic device holders  100  and  400 . 
     The body portion  1102 ,  1202 ,  1302  comprises a first end portion  1106 ,  1206 ,  1306 , a second end portion  1108 ,  1208 ,  1308 , a first side  1110 ,  1210 ,  1310  and a second side  1112 ,  1212 ,  1312 . A distance between the first end portion  1106 ,  1206 ,  1306  and the second end portion  1108 ,  1208 ,  1308  defines a length  1120 ,  1220 ,  1320  of the body portion  1102 ,  1202 ,  1302 . A distance between the first side  1110 ,  1210 ,  1310  and the second side  1112 ,  1212 ,  1312  defines a width  1122 ,  1222 ,  1322  of the body portion  1102 ,  1202 ,  1302 . 
     The body portion  1102 ,  1202 ,  1302  further comprises a front surface  1114 ,  1214 ,  1314  and a back surface  1116 ,  1216 ,  1316  that may extend from the first end portion  1106 ,  1206 ,  1306  to the second end portion  1108 ,  1208 ,  1308 . 
     The body portion  1102 ,  1202 ,  1302  may further comprise a clamp (e.g., snap clamp, wherein applying a pressure on the clamp against a shaft will couple the clamp and shaft, producing a “snap” sound)  1126 ,  1226 ,  1326  positioned on the back surface  1116 ,  1216 ,  1316 . In the embodiments illustrated, the clamp  1126 ,  1226 ,  1326  is centered along the width  1122 ,  1222 ,  1322  of the body portion  1102 ,  1202 ,  1302 , and can be positioned anywhere along the length  1120 ,  1220 ,  1320  of the body portion  1102 ,  1202 ,  1302 . For example, the clamp  1126 ,  1226 ,  1326  may be positioned on the back surface  1116 ,  1216 ,  1316  near the first end portion  1106 ,  1206 ,  1306 , or be positioned on the back surface  1116 ,  1216 ,  1316  near the second end portion  1108 ,  1208 ,  1308  as illustrated in  FIGS. 27, 29 and 31 . Further, the clamp  1126 ,  1226 ,  1326  may have different orientations on the back surface  1116 ,  1216 ,  1316  (e.g., parallel to the first side  1110 ,  1210 ,  1310 , perpendicular to the first side  1110 ,  1210 ,  1310 , or different angles relative to the first side.) 
     The clamp  1126 ,  1226 ,  1326  comprises a first arm  1128 ,  1228 ,  1328  and a second arm  1130 ,  1230 ,  1330  wherein an opening  1132 ,  1232 ,  1332  defines a space between the first arm  1128 ,  1228 ,  1328  and the second arm  1130 ,  1230 ,  1330 . The first arm  1128 ,  1228 ,  1328  and the second arm  1130 ,  1230 ,  1330  collectively define a generally cylindrical shape for receiving a portion of the golf club shaft  800 , or any cylindrical object through the opening  1132 ,  1232 ,  1332 . Once the clamp  1126 ,  1226 ,  1326  is snapped onto the golf club shaft  800 , a friction generated between the golf club shaft  800  and the first arm  1128 ,  1228 ,  1328  and the second arm  1130 ,  1230 ,  1330  of the clamp  1126 ,  1226 ,  1326  prevent the portable electronic device holder  1100 ,  1200 ,  1300  from rotating and sliding on the golf club shaft  800 . The general cylindrical shape created by the first arm  1128 ,  1228 ,  1328  and the second arm  1130 ,  1230 ,  1330  comprise a radius, wherein the radius can vary to accommodate different sized golf club shafts and cylindrical objects. 
     The base  1104 ,  1204 ,  1304  is integrally formed with the body portion  1102 ,  1202 ,  1302  and extends from the second end portion  1108 ,  1208 ,  1308  of the front surface  1114 ,  1214 ,  1314 . The base extends the entire width  1122 ,  1222 ,  1322  of the body portion  1102 ,  1202 ,  1302 . Furthermore, the base  1104 ,  1204 ,  1304  is perpendicular relative to the body portion  1102 ,  1202 ,  1302 . The base  1104 ,  1204 ,  1304  prevents the portable electronic device  1000  from rotation when mounted to the body portion  1102 ,  1202 ,  1302 . 
     The body portion  1102 ,  1202 ,  1302  further comprises at least one recess  1118 ,  1218 ,  1318  (e.g., 1 recess, 2 recesses, 3 recesses, 4 recesses, 5 recesses, or 6 recesses), wherein the at least one recess  1118 ,  1218 ,  1318  is located on the front surface  1114 ,  1214 ,  1314 . The at least one recess  1118 ,  1218 ,  1318  can be positioned on any portion of the front surface  1114 ,  1214 ,  1314 , such as: centered along the width  1122 ,  1222 ,  1322  of the body portion  1102 ,  1202 ,  1302 , centered along the length  1120 ,  1220 ,  1320  of the body portion  1102 ,  1202 ,  1302 , closer to the first side  1110 ,  1210 ,  1310 , closer to the second side  1112 ,  1212 ,  1312 , closer to the first end portion, closer to the second end portion  1108 ,  1208 ,  1308 , in an alignment parallel to the first side  1110 ,  1210 ,  1310 , in an alignment perpendicular to the first side  1110 ,  1210 ,  1310 , aligned in a diagonal orientation, positioned at different corners of the body portion  1102 ,  1202 ,  1302 , in a shape orientation (e.g., square, diamond, triangle, pentagon, etc.), or any combination thereof. For example, the body portion can comprise three recesses  1118 ,  1218 ,  1318 , centered along the width  1122 ,  1222 ,  1322  of the body portion  1102 ,  1202 ,  1302 , and aligned parallel to the first side  1110 ,  1210 ,  1310 . Further the at least one recess  1118 ,  1218 ,  1318  can be any cross-sectional shape (e.g., circle, triangle, square, rectangle, etc.). The at least one recess  1118 ,  1218 ,  1318  described herein is a circular cross-sectional shape. 
     The at least one recess  1118 ,  1218 ,  1318  of the portable electronic device holder  1100 ,  1200 ,  1300  can further house at least one magnet  1124 ,  1224 ,  1324 , wherein the at least one magnet  1124 ,  1224 ,  1324  comprises a cross-sectional shape that is complementary to the cross-sectional shape of the at least one recess  1118 ,  1218 ,  1318 . In other embodiments, the at least one recess  1118 ,  1218 ,  1318  of the portable electronic device holder  1100 ,  1200 ,  1300  can comprise a polymagnet (programmable magnet). In other embodiments still, the portable electronic device holder  1100 ,  1200 ,  1300  can comprise a polymagnet. The at least one magnet  1124 ,  1224 ,  1324  may be positioned in the at least one recess  1118 ,  1218 ,  1318  by an adhesive (e.g., epoxy), press fit, molding a plastic of the portable electronic device holder  1100 ,  1200 ,  1300  around the at least one magnet  1124 ,  1224 ,  1324 , 3-D printing the at least one magnet  1124 ,  1224 ,  1324  into the at least one recess  1118 ,  1218 ,  1318 , or providing a portable electronic device holder  1100 ,  1200 ,  1300  comprising a ferrous material (i.e. any material that is magnetic). 
     In some embodiments, the portable electronic device holder  1100 ,  1200 ,  1300  can be made of polymagnets that may vary at different strengths of attraction. Further, the polymagnet can be programmable to be at different strengths of attraction. The polymagnets of the portable electronic device holder  1100 ,  1200 ,  1300  can comprise ferrous materials. Further, the polymagnets of the portable electronic device holder  1100 ,  1200 ,  1300  do not affect any surrounding magnetic fields (i.e., magnetic field of a gyroscope or any magnetic field within an electronic device). 
     When the at least one magnet  1124 ,  1224 ,  1324  is positioned in the at least one recess  1118 ,  1218 ,  1318 , an exposed surface  1125 ,  1225 ,  1325  of the at least one magnet  1124 ,  1224 ,  1324  is flush with the front surface  1114 ,  1214 ,  1314 . The exposed surface  1125 ,  1225 ,  1325  of the at least one magnet  1124 ,  1224 ,  1324  further comprises a polarity with respect to a magnetic field. The at least one magnet  1124 ,  1224 ,  1324 , can be made of neodymium iron boron, samarium cobalt, alnico, ceramic, or any combination of ferromagnetic metals. 
     In other embodiments, the at least one magnet can be a polymagnet. The polymagnet can vary at different strengths of attraction to metals, polymagnets, ferrous materials or other materials. Further, the polymagnet can be programmable to be at different strengths of attraction. The polymagnet will not affect other surrounding magnetic fields (i.e., magnetic field of a gyroscope, or any magnetic field within an electronic device). In some embodiments, the polymagnet can comprise ferrous materials. 
     In one embodiment, as illustrated in  FIGS. 26 and 27 , the body portion  1102  comprises one recess  1118 . The recess  1118  is centered along the width  1122  of the body portion  1102 , and positioned near the first end portion  1106  of the body portion  1102 . In other examples, the recess  1118  can be positioned anywhere along the entire length  1120  of the body portion  1102 . For example, the recess  1118  can be positioned on the front surface  1114  near the first end portion  1106 , near the second end portion  1108 , or in the center of the length  1120  of the body portion  1102 . 
     In another embodiment, as illustrated in  FIGS. 28 and 29 , the body portion  1202  comprises two recesses  1218 . The two recesses  1218  are aligned parallel to the first side  1210  and are centered between the first side  1210  and the second side  1212  with one recess  1218  closer to the first end portion  1206 , and the second recess  1218  closer to the second end portion  1208 . In other examples, the two recesses  1218  can be aligned parallel to the first side  1210 , and positioned closer to the first side  1210 , or closer to the second side  1212 . In other examples, the two recesses can be aligned parallel to the base  1204 , and be positioned closer to the first end portion  1206 , closer to the second end portion  1210 , or in the center of the length  1220  of the body portion  1202 . In other examples, the two recesses  1218  can be aligned in a diagonal orientation, from the first side  1210  near the first end portion  1206  towards the second side  1212  near the second end portion  1208 , or from the first side  1210  near the second end portion  1208  towards the second side  1212  near the first end portion  1206 . In further examples, the two recesses  1218  can be unaligned and be positioned on any portion of the front surface  1214 . 
     In another embodiment, as illustrated in  FIGS. 30 and 31 , the body portion  1302  comprises four recesses  1318 . The four recesses  1318  are positioned on the front surface  1314  in a square orientation parallel to the first side  1310 . In another example, the square orientation of the four recesses  1318  can be in a square orientation perpendicular to the first side  1310 . In another example, each recess  1318  can be positioned at each corner of the body portion  1302 . In another example, the four recesses  1318  can be aligned in a straight line parallel to the first side  1310  near the first side  1310 , near the second side  1312 , or centered along the width  1322  of the body portion  1302 . In other examples, the four recesses  1318  can be aligned in a in a straight line diagonal orientation, from the first side  1310  closer to the first end portion  1306  towards the second side  1312  closer to the second end portion  1308 , or from the first side  1310  closer to the second end portion  1308  towards the second side  1312  closer to the first end portion  1306 . In further examples, the four recesses  1318  can be unaligned and be positioned on any portion of the front surface  1314 . 
     When the at least one magnet  1124 ,  1224 ,  1324  is placed near a ferrous material (e.g., alloy steel, carbon steel, stainless steel, cast iron, etc.), or, the magnetic field of the at least one magnet  1124 ,  1224 ,  1324  causes the ferrous material to polarize. A force of attraction due to the polarity of the ferrous material and the polarity of the at least one magnet  1124 ,  1224 ,  1324 , couples the ferrous material to the at least one magnet  1124 ,  1224 ,  1324 . 
     There are several different approaches to incorporate a ferrous material to the portable electronic device  1000  so the portable electronic device  1000  may mount the portable electronic device holder  1100 ,  1200 ,  1300 . In one approach, the portable electronic device  1000  may have a portable electronic device case made of the ferrous material. In another approach, the portable electronic device  1000  may have a portable electronic device case with a metal sheet made of the ferrous material positioned in between the portable electronic device  1000  and the portable electronic device case. The metal sheet comprises an adhesive surface wherein the adhesive surface can directly attach to the portable electronic device  1000  or to the portable electronic device case. The metal sheet can further comprise a design or logo on the surface opposite the adhesive surface. The force of attraction between the at least one magnet  1124 ,  1224 ,  1324  and the metal sheet, or the portable electronic device case made of the ferrous material, will keep the portable electronic device  1000  coupled to the portable electronic device holder  1100 ,  1200 ,  1300  until removal by a user. Further, the magnetic field of the at least one magnet  1124 ,  1224 ,  1324  will not harm the portable electronic device  1000  when mounted onto the portable electronic device holder  1100 ,  1200 ,  1300 . 
     To remove the portable electronic device  1000  from the portable electronic device holder  1100 ,  1200 ,  1300 , the portable electronic device  1000  and the electronic device case may be pulled away from the body portion  1102 ,  1202 ,  1302  so that the magnetic fields of the at least one magnet  1124 ,  1224 ,  1324  and the metal sheet, or the portable electronic device case made of the ferrous material do not create a force of attraction to one another. 
     The portable electronic device holder  1100 ,  1200 ,  1300  may be mounted on a shaft of sports equipment or any cylindrical object. The portable electronic device holder  1100 ,  1200 ,  1300  may be mounted on the golf club shaft  800 . The portable electronic device holder  1100 ,  1200 ,  1300  may engage the golf club shaft  800  at any location on the golf club shaft  800 . A portable electronic device may be mounted on the golf club shaft  800  with the portable electronic device holder  1100 ,  1200 ,  1300  to capture still and/or video images of an area around the portable electronic device; measure and/or determine relative and/or absolute linear motion, velocity and/or acceleration of the portable electronic device; measure and/or determine relative and/or absolute angular motion, velocity and/or acceleration of the portable electronic device; and/or measure and/or determine relative and/or absolute position of the portable electronic device. Any of the above-described motion, velocity, acceleration and/or position measurements and/or determinations associated with the portable electronic device  1000  may be interpreted as motion, velocity, acceleration and/or position measurements and/or determinations associated with the golf club shaft  800 . 
       FIGS. 32-37  illustrate another embodiment of the portable electronic device holder  1400 . The portable electronic device holder  1400  comprises a body portion  1402 , and a base  1404 . The portable electronic device holder  1400  may be configured to removable attach a portable electronic device  1000  such as a wireless communication device and/or portable media player to a golf club shaft  800  of a golf club (e.g., a putter-type golf club head), similar to the portable electronic device holders  100 ,  400 ,  1100 ,  1200 , and  1300 . 
     The body portion  1402  comprises a first end portion  1406 , a second end portion  1408 , a first side  1410  and a second side  1412 . A distance between the first end portion  1406  and the second end portion  1408  defines a length  1420  of the body portion  1402 . A distance between the first side  1410  and the second side  1412  defines a width  1422  of the body portion  1402 . The first side  1410  of the body portion curves toward the second end  1412  of the body portion  1402 , and the second side  1412  curves toward the first end  1410 , wherein the width  1422  of the body portion  1402  is the greatest near the first and second end portion  1406 ,  1408 . As illustrated in  FIG. 32 , due to the curve of the first and second sides  1410  and  1412 , the portable electronic device holder  1400  can have a general hourglass shape. The body portion  1402  further comprises a front surface  1414  and a back surface  1416  that may extend from the first end portion  1406  to the second end portion  1408 . 
     The body portion  1402  may further comprise a clamp (e.g., snap clamp, wherein applying a pressure on the clamp against a shaft will couple the clamp and shaft, producing a “snap” sound)  1426  positioned on the back surface  1416 . In the embodiments illustrated, the clamp  1426  is centered along the width  1422  of the body portion  1402 , and can be positioned anywhere along the length  1420  of the body portion  1402 . For example as illustrated in  FIG. 32 , the clamp  1426  may be positioned centered along the width  1422  on the back surface  1416 , near the first end portion  1406 . Further, the clamp  1426  of the body portion  1402  may have different orientations on the back surface  1416  (e.g., perpendicular to the base  1404 , or different angles relative to the base  1404 .) 
     As illustrated in  FIGS. 33 and 34 , the clamp  1426  comprises a first arm  1428  and a second arm  1430  wherein an opening  1432  defines a space between the first arm  1428  and the second arm  1430 . The first arm  1428  and the second arm  1430  collectively define a generally cylindrical shape for receiving a portion of the golf club shaft  800 , or any cylindrical object through the opening  1432 . Once the clamp  1426  is snapped onto the golf club shaft  800 , a friction generated between the golf club shaft  800  and the first arm  1428  and the second arm  1430  of the clamp  1426  prevent the portable electronic device holder  1400  from rotating and sliding on the golf club shaft  800 . The general cylindrical shape created by the first arm  1428  and the second arm  1430  comprise a radius, wherein the radius can vary to accommodate different sized golf club shafts and cylindrical objects. 
     The first and second arms  1428  and  1430  of the clamp  1426  may also include an expansion tab  1440  and  1442  that may extend along at least a portion of the first and second arms  1428  and  1430 , respectively. Each expansion tab  1440  and  1442  extends outwardly from the corresponding arm  1428  and  1430  to effectively enlarge the opening  1432 . The generally transverse orientation of each expansion tab  1440  and  1444  relative to a corresponding direction of the arm  1428  and  1430 , respectively, provides for the elastic bending of the first and second arms  1428  and  1430  when a golf club shaft  800  is pressed against the expansion tabs  1440  and  1442 . Accordingly, when a golf club shaft  800  is pressed against the expansion tabs  1440  and  1442 , the golf club shaft  800  presses the expansion tabs  1440  and  1442  outward to elastically enlarge the opening  1432  so that the golf club shaft  800  may be received in the opening  1432 . 
     In some embodiments, the back surface  1416  of the body portion  1402  can comprise a level surface. In other embodiments as illustrated in  FIG. 35 , the back surface  1416  of the body portion  1402  can comprise a non-level surface. For example, the first side  1410 , the second side  1412 , the first end portion  1406 , and the second end portion  1408  can increase in elevation as it extends toward the clamp  1426 . 
     The base  1404  of the portable electronic device holder  1400  is integrally formed with the body portion  1402  and extends from the second end portion  1408  of the front surface  1414 . The base extends the entire width  1422  of the body portion  1402 . Furthermore, the base  1404  is perpendicular relative to the body portion  1402 . The base  1404  prevents the portable electronic device  1000  from rotation when mounted to the body portion  1402 . 
     The body portion  1402  further comprises at least one recess  1418  (e.g., 1 recess, 2 recesses, 3 recesses, 4 recesses, 5 recesses, or 6 recesses), wherein the at least one recess  1418  is located on the front surface  1414 . The at least one recess can be positioned on any portion of the front surface, such as: centered along the width  1422  of the body portion  1402 , centered along the length  1420  of the body portion  1402 , closer to the first side  1410 , closer to the second side  1412 , closer to the first end portion  1406 , closer to the second end portion  1408 , in an alignment parallel to the first side  1410 , in an alignment perpendicular to the first side  1410 , aligned in a diagonal orientation, positioned at different corners of the body portion  1402 , in a shape orientation (e.g., square, diamond, triangle, pentagon, etc.), or any combination thereof. For example as illustrated in  FIG. 32 , the body portion can comprise one recess  1418 , centered along the width  1422  of the body portion  1402 , and aligned perpendicular to the base  1404 . Further the at least one recess  1418  can be any cross-sectional shape (e.g., circle, triangle, square, rectangle, etc.). The at least one recess  1418  described herein is a rectangular cross-sectional shape. 
     As illustrated in  FIG. 36 , the at least one recess  1418  can further house at least one magnet  1424 , wherein the at least one magnet  1424  comprises a cross-sectional shape that is complementary to the cross-sectional shape of the at least one recess  1418 . The at least one magnet  1424  may be positioned in the at least one recess  1418  by an adhesive (e.g., epoxy), press fit, molding a plastic of the portable electronic device holder  1400  around the at least one magnet  1424 , 3-D printing the at least one magnet  1424  into the at least one recess  1418 , providing a portable electronic device holder  1400  comprising a ferrous material (i.e. any material that is magnetic), or providing a portable electronic device holder  1400  comprising a polymagnet. When the at least one magnet  1424  is positioned in the at least one recess  1418 , an exposed surface  1425  of the at least one magnet  1424  is flush with the front surface  1414 . The exposed surface  1425  of the at least one magnet  1424  further comprises a polarity with respect to a magnetic field. The at least one magnet  1424 , can be made of neodymium iron boron, samarium cobalt, alnico, ceramic, or any combination of ferromagnetic metals. 
     The body portion  1402  further comprises at least one cavity  1434  (e.g., 1 cavity, 2 cavities, 3 cavities, 4 cavities, or 5 cavities), wherein the at least one cavity  1434  is located on the front surface  1414 . The at least one cavity  1434  can be positioned on any portion of the front surface  1414 , such as: centered along the width  1422  of the body portion  1402  near the first end portion  1406 , centered along the width  1422  near the second end portion  1408 , centered along the with near both the first end portion  1406  and the second end portion  1408 , closer to the first side  1410 , closer to the second side  1412 , or located at the corners of the front surface  1414 . For example, the body portion  1402  comprises 2 cavities  1434 , the first cavity  1434  centered along the width  1422  of the body portion  1402  near the first end portion  1406 , and the second cavity  1434  centered along the width  1422  near the second end portion  1408 . Further the at least one cavity  1434  can be any cross-sectional shape (e.g., circle, triangle, square, rectangle, etc.). The at least one cavity  1434  described herein is an oval cross-sectional shape. 
     The at least one cavity  1434  is configured to receive at least one friction pad  1436 , wherein the at least one friction pad  1436  comprises a cross-sectional shape that is complementary to the cross-sectional shape of the at least one cavity  1434 . The at least one friction pad  1436  may be positioned in the at least one cavity  1434  by an adhesive (e.g., epoxy), tape, press fit, or by any other attachment means. When the at least one friction pad  1436  is positioned in the at least one cavity  1434 , the at least one friction pad  1436  can be flush with the front surface  1414 . In other embodiments, the at least one friction pad  1436  is not flush with the front surface when positioned within the at least one cavity  1434 , wherein the at least one friction pad  1436  can extend past the front surface  1414  by 0.05 inch to 0.30 inch. For example, the at least one friction pad  1436  can extend past the front surface  1414  by 0.05 inch, 0.10 inch, 0.15 inch, 0.20 inch, 0.25 inch, or 0.30 inch. 
     The at least one friction pad  1436  comprises a material. The material of the at least one friction pad  1436  can be polyethylene terephthalate, high-density polyethylene, polyvinyl chloride, polycarbonate, polypropylene, other thermoplastics, composite polymers, foams or any combination thereof. The material of the at least one friction pad  1436  provides friction for the portable electronic device  1000  and prevent the portable electronic device from rotating when coupled to the portable electronic device holder  1400 . 
     When the at least one magnet  1424  is placed near another polymagnet or a ferrous material (e.g., alloy steel, carbon steel, stainless steel, cast iron, etc.), the magnetic field of the at least one magnet  1424  causes the ferrous material to polarize. A force of attraction due to the polarity of the ferrous material and the polarity of the at least one magnet  1424 , couples the ferrous material to the at least one magnet  1424 . 
     There are several different approaches to incorporate a ferrous material to the portable electronic device  1000  so the portable electronic device  1000  may mount the portable electronic device holder  1400 . In one approach, the portable electronic device  1000  may have a portable electronic device case made of the ferrous material. In another approach, the portable electronic device  1000  may have a portable electronic device case with a metal sheet made of the ferrous material positioned in between the portable electronic device  1000  and the portable electronic device case. The metal sheet comprises an adhesive surface wherein the adhesive surface can directly attach to the portable electronic device  1000  or to the portable electronic device case. The metal sheet can further comprise a design or logo on the surface opposite the adhesive surface. The force of attraction between the at least one magnet  1424  and the metal sheet, or the portable electronic device case made of the ferrous material, will keep the portable electronic device  1000  coupled to the portable electronic device holder  1400  until removal by a user. Further, the magnetic field of the at least one magnet  1424  will not harm the portable electronic device  1000  when mounted onto the portable electronic device holder  1400 . 
     To remove the portable electronic device  1000  from the portable electronic device holder  1400 , the portable electronic device  1000  and the electronic device case may be pulled away from the body portion  1402  so that the magnetic fields of the at least one magnet  1424  and the metal sheet, or the portable electronic device case made of the ferrous material do not create a force of attraction to one another. 
     The portable electronic device holder  1400  may be mounted on a shaft of sports equipment or any cylindrical object. The portable electronic device holder  1400  may be mounted on the golf club shaft  800 . The portable electronic device holder  1400  may be further mounted on any other sport related shafts such as a polo stick, tennis racket, a hockey stick, or a lacrosse stick. The portable electronic device holder  1400  may engage the golf club shaft  800  at any location on the golf club shaft  800 . A portable electronic device may be mounted on the golf club shaft  800  with the portable electronic device holder  1400  to capture still and/or video images of an area around the portable electronic device; measure and/or determine relative and/or absolute linear motion, velocity and/or acceleration of the portable electronic device; measure and/or determine relative and/or absolute angular motion, velocity and/or acceleration of the portable electronic device; and/or measure and/or determine relative and/or absolute position of the portable electronic device. Any of the above-described motion, velocity, acceleration and/or position measurements and/or determinations associated with the portable electronic device  1000  may be interpreted as motion, velocity, acceleration and/or position measurements and/or determinations associated with the golf club shaft  800 . 
     Referring to  FIGS. 21-25 , the portable electronic device holder  100 ,  400 ,  1100 ,  1200 ,  1300 ,  1400  may be configured to be removably attached to a stand system  700 . In the illustrated embodiment, the stand system  700  includes a coupling member  702  and at least one leg  704 . The coupling member  702  includes a first end  710  configured to removably receive the at least one leg  704  and/or a camera stand (not shown), and a second end  712  configured to removably receive the portable electronic device holder  100 ,  400 ,  1100 ,  1200 ,  1300 ,  1400 . 
     Further referring to  FIGS. 21-25 , the first end of the coupling member  702  includes at least one cavity  716  configured to receive the at least one leg  704 . The cavity  716  may have any shape corresponding to the cross sectional shape of the at least one leg  704 . The at least one cavity  716  may include a substantially ring shaped securing member (not shown). The securing member may be made of a rubber-type material capable of frictionally engaging the at least one leg  704  to provide a secure press fit of the at least one leg  704  within the at least one cavity  716 . The at least one leg  704  may be an alignment tool used for aligning a golfer&#39;s swing. The first end  710  of the coupling member  702  may further include a threaded inner surface  718  capable of receiving a camera stand having mating threads. 
     Further referring to  FIGS. 21-25 , the second end  712  of the coupling member  702  includes a ball member  720  positioned within a socket  722 , and a threaded fastener  728  capable of provisionally fixing the ball member  720  within the socket  722  in a desired position. The ball member  720  includes a first portion  732  having a substantially spherical shape and a second portion  734  having threads capable of removably coupling the coupling member to a threaded inner surface  750  (shown in  FIG. 13 ) of the portable electronic device holder. The position of the ball member  720  within with socket  722  may be changed by loosening the threaded fastener  728 , rotating the ball member  720  to a different position, and tightening the threaded fastener  728 . 
     In the illustrated embodiment, the stand system includes a first leg  704   1 , a second leg  704   2 , and a third leg  704   3 . The first, the second, and the third legs  704   1 ,  704   2 ,  704   3  are illustrated in  FIG. 18  as alignment tools used to align a golfer&#39;s swing. The at least one leg  704  may also be other alignment tools, or any elongated shape capable of forming a stand system  700  with the coupling member  702 . In the illustrated embodiment, the at least one leg  704  has an elongated shape with a substantially circular cross section matching a substantially circular cross section of the at least one cavity  716 . In other embodiments, the at least one leg  704  may be any elongated shape having any cross sectional shape capable of removably coupling to the at least one cavity  716  in the first end  710  of the coupling member  702 . 
     A golfer may attach the portable electronic device to the golf club shaft  800  or to the coupling member  702  using alignment tools as legs  704  to create a stand system  700 . This flexibility provides the golfer with a variety of abilities such as, for example, tracking the position, velocity, acceleration of the golf club during a swing, recording a video of the swing of the golf club or impact of the golf club with a golf ball, or overall recording of the mechanics and tempos of a golfer&#39;s swing. 
     Referring to  FIG. 11 , a method  2000  of manufacturing an exemplary portable electronic device holder is shown. The method  2000  may include forming a body portion (block  2002 ), forming a first clamp portion (block  2004 ), forming a first rod and a second rod (block  2006 ), forming a second clamp portion (block  2008 ), and providing a first spring and a second spring (block  2010 ). The second clamp portion may be formed with the body portion as a single unit. The springs may be formed by any of the processes described herein. Additionally, the first rod and the second rod may be formed together with the first clamp portion. 
     Any single part or multiple parts of the portable electronic device holder may be constructed from any type of material, such as stainless steel, aluminum, titanium, various metals or metal alloys, composite materials (e.g., Kevlar®, graphite and/or fiberglass), natural materials such as wood or stone or artificial materials such as plastic. Any single part or multiple parts of the portable electronic device holder, such as the body portion, the first and second rods, the first clamp portion and/or the springs may be constructed by stamping (i.e., punching using a machine press or a stamping press, blanking, embossing, bending, flanging, coining, or casting), injection molding, forging, machining or a combination thereof, or other processes used for manufacturing metal, composite, plastic or wood parts. The first and second springs may be coil springs, leaf springs, radial springs, elastomer springs (e.g., annular or cylindrical elastomeric parts) or be constructed with any material and/or have any shape to provide the functions described herein. For example, the body portion including the second clamp portion, the first and second rods and the first clamp portion may be constructed from plastic by an injection molding process. The springs for example may be steel or plastic coil springs. The body portion including the second clamp portion, the first and second rods, the springs and the first clamp portion may then be assembled to form the portable electronic device holder. The body portion or any other part of the portable electronic device holder may be constructed in multiple sections that may be joined together during assembly of the portable electronic device holder. For example, the body portion may be constructed as two halves that are joined together during assembly of the portable electronic device holder. 
     The above examples are described in connection with a golf club such as a putter-type golf club, a driver-type golf club, a fairway wood-type golf club, a hybrid-type golf club, an iron-type golf club, or a wedge-type golf club. However, the apparatus and articles of manufacture described herein may be applicable other types of sports equipment such as a hockey stick, a tennis racket, a fishing pole, a ski pole, etc. 
     Although a particular order of actions is described above, these actions may be performed in other temporal sequences. For example, two or more actions described above may be performed sequentially, concurrently, or simultaneously. Alternatively, two or more actions may be performed in reversed order. Further, one or more actions described above may not be performed at all. The apparatus, methods, and articles of manufacture described herein are not limited in this regard. 
     Although certain example methods, apparatus, systems, and articles of manufacture have been described herein, the scope of coverage of this disclosure is not limited thereto. On the contrary, this disclosure covers all methods, apparatus, systems, and articles of manufacture fairly falling within the scope of the appended claims either literally or under the doctrine of equivalents.