Abstract:
According to one embodiment of the present invention, an electronic-acoustic device which is responsive to at least one input signal comprises: a spatial orientation sensor for detecting the vertical direction; a sound channel distributor/director for providing a plurality of output signals, and which is jointly responsive to such at least one input signal and to the spatial orientation sensor; a multi-channel amplifier which is responsive to a the plurality of output signals of the sound channel distributor/director; and a loudspeaker array which is responsive to the multi-channel amplifier for producing different sets of output sounds in the various spatial orientations of the device.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    This patent application is a continuation-in-part of co-pending patent application serial number 653,668, filed on Dec. 17, 2009, and entitled SYSTEM AND METHOD FOR APPLYING A PLURALITY OF INPUT SIGNALS TO A LOUDSPEAKER ARRAY by the same inventor herein. 
         [0002]    1. Field of the Invention 
         [0003]    This invention relates to an ELECTRONIC-ACOUSTIC DEVICE FEATURING A PLURALITY OF INPUT SIGNALS BEING APPLIED IN VARIOUS COMBINATIONS TO A LOUDSPEAKER ARRAY for producing different sets of output sounds in various spatial orientations of the device. 
         [0004]    2. Description of the Prior Art 
         [0005]    The prior art discloses the following: 
         [0006]    An inclinometer is an instrument for measuring angles of slope (or tilt), elevation or depression of an object with respect to gravity. It is also known as a tilt meter, tilt indicator, slope alert, slope gauge, gradient meter, gradiometer, level gauge, level meter, declinometer, and pitch &amp; roll indicator. Clinometers measure both inclines (positive slopes, as seen by an observer looking upwards) and declines (negative slopes, as seen by an observer looking downward). (SEE WIKIPEDIA ARTICLE OF “INCLINOMETERS”) 
         [0007]    Slayton et al patent application publication 2002-0087080 published on Jul. 4, 2002 and entitled Visual imaging system for ultrasonic probe states as follows: “While an exemplary embodiment of a positioning indicator can comprise a series of marks  308 , such as two, three, four or more, or a single mark, positioning indicator  308  can comprise any mechanism for facilitating the determination of the geometry of transducer  102  with respect to the patient. Thus, the positioning indicator can also comprise any three-dimensional positioning indicator devices that can provide information regarding the position of transducer  102  with respect to the patient. For example, the positioning indicator can comprise an electromagnetic device configured within transducer  102  that can be suitably tracked by electromagnetic sensors configured with control system  100 . In addition, the positioning indicator can comprise a gravitational accelerometer configured to provide the assessment of three axis or rotation of transducer  102  in three dimensions. Such a collection of three-dimensional information could also be suitably correlated with three-dimensional imaging information, as disclosed more fully in U.S. patent application Ser. No. 09/502,174, entitled IMAGING, THERAPY AND TEMPERATURE MONITORING ULTRASONIC SYSTEM, hereby incorporated herein by reference.” 
         [0008]    Weinbrenner U.S. Pat. No. 6,466,887 issued on Oct. 12, 2002 and entitled Gravimetric rotation sensors: dead reckoning, velocity, and heading sensor system for vehicle navigation systems states as follows: “A rotational sensor for use with an in-vehicle navigation system, a navigation system that uses the sensor, and a vehicle with the sensor installed. The rotational sensor is created by placing two gravitational accelerometers configured at 90 degrees with respect to one another and mounted at the center of a vehicle wheel. As this resulting sensor is rotated, sine and cosine signals with a quadrature relationship are generated with respect to the earth&#39;s gravity vector, from which both rotation and direction of rotation can be determined. These signals may then allow the counting of the turns of the wheel, thus estimating the distance and the rate at which the vehicle has moved. A self-contained version of this device including a transmitter can relay this information to a receiving unit located within the vehicle. When one of these devices is located on each of the steerable wheels of the vehicle, the relative heading-direction of the vehicle may also be estimated.” . . . “A gravimetric rotational wheel sensor for use on a mobile vehicle, the mobile vehicle having a body, and front axle engaged to the body, and at least one wheel engaged to the axle, comprising: a first accelerometer for engagement to the wheel; a second accelerometer for engagement to the wheel and aligned relatively to sense gravitational force 90 degrees out of synch from said first accelerometer; a transmitter for engagement to the wheel and for receiving electrical accelerometer output signals representing wheel rotation from said first and said second accelerometers and said transmitter for transmitting said accelerometer output signals; said first accelerometer and said second accelerometer are within a container and said container may be mounted to the wheel; a transmitter for allowing remote reporting of wheel position from said first and second accelerometers without the need for hard wiring; a microprocessor-based electronic circuit for signal processing and data correlation; said container configured to ensure said first accelerometer and said second accelerometer are located near the center of the wheel when said container is engaged to the wheel; and said microprocessor-based electronic circuit for signal processing and data correlation has a generator that may convert sensed rotational motion of the wheels to electric power.” . . . “A gravimetric rotational wheel sensor for use on a mobile vehicle, the mobile vehicle having a body, and front axle engaged to the body, and at least one wheel engaged to the axle, comprising: a first accelerometer for engagement to the wheel; a second accelerometer for engagement to the wheel and aligned relatively to sense gravitational force 90 degrees out of synch from said first accelerometer; a transmitter for engagement to the wheel and for receiving electrical accelerometer output signals representing wheel rotation from said first and said second accelerometers and said transmitter for transmitting said accelerometer output signals; said first accelerometer and said second accelerometer are within a container and said container may be mounted to the wheel; a transmitter for allowing remote reporting of wheel position from said first and second accelerometers without the need for hard wiring; a microprocessor-based electronic circuit for signal processing and data correlation; said container configured to ensure said first accelerometer and said second accelerometer are located near the center of the wheel when said container is engaged to the wheel; said first and second accelerometer provide two output wave results in a quadrature waveform in a 90 degree phase relationship between said two outputs when installed on a wheel and the wheel rotates; and said microprocessor-based electronic circuit for signal processing and data correlation has a centripetal bias signal processing circuit portion programmed for accounting for offset from center of the wheel upon mounting.” . . . “A mobile vehicle, comprising: a body; front axle engaged to said body; said front axle engaged to a left front steerable wheel and a right front steerable wheel, each of said wheels having an inner hub for mounting to said front axle; a navigation system within said body; a first gravimetric rotational wheel sensor engaged to a first of said front wheels, comprising: a first accelerometer; a second accelerometer aligned relatively to sense gravitational force 90 degrees out of synch from said first accelerometer; and a transmitter for receiving electrical accelerometer output signals representing wheel rotation from said first and said second accelerometers and said transmitter for transmitting said accelerometer output signals; a receiver and microprocessor system for receiving and error checking said electrical accelerometer output signals from said first front wheel transmitter; said receiver engaged to said navigation system to provide said electrical accelerometer output signals to said navigation system providing said navigation system an indication of distance traveled and direction of first front wheel rotation; a second gravimetric rotational wheel sensor engaged to a second of said front wheels, comprising: a third accelerometer; a fourth accelerometer aligned relatively to sense gravitational force 90 degrees out of synch from said third accelerometer; and a second transmitter for receiving electrical accelerometer output signals representing wheel rotation from said third and said fourth accelerometers and said second transmitter for transmitting said accelerometer output signals to said receiver; and said receiver, microprocessor, and navigation system programmed to process output signals from said first and second rotational wheel sensors to determine distance traveled and changes in vehicle direction due to sensed relative wheel rotation.” . . . “A gravimetric rotational wheel sensor for use on a mobile vehicle, the mobile vehicle having a body, and front axle engaged to the body, and at least one wheel engaged to the axle, comprising: an accelerometer for engagement to the wheel; and a transmitter for engagement to the wheel and for receiving electrical accelerometer output signals representing both static and dynamic wheel position and rotation from said accelerometer and said transmitter for transmitting said accelerometer output signal.” . . . “A gravimetric rotational wheel sensor for use on a mobile vehicle, the mobile vehicle having a body, and front axle engaged to the body, and at least one wheel engaged to the axle, comprising: a first accelerometer for engagement to the wheel; a second accelerometer for engagement to the wheel and aligned relatively to sense gravitational force 90 degrees out of synch from said first accelerometer; and a transmitter for engagement to the wheel and for receiving electrical accelerometer output signals representing wheel radial position in both static and dynamic conditions and amount of rotation upon rotation from said first and said second accelerometers and said transmitter for transmitting said accelerometer output signals.” 
         [0009]    Perez patent application publication 2003-0038778 published on Feb. 27, 2003 and entitled Tilt based pointing for hand-held devices states as follows: “Referring to  FIG. 1 , in one embodiment, a hand-held device  10  includes a display screen  12  that is configured to display a graphical user interface, which may present one or more user commands or options for controlling the operation of hand-held device  10 . A pointer  14  may be positioned over the options that are presented by the graphical user interface at any one of a plurality of pointer screen locations. A selection button  16  may be depressed to activate a command or option selected by pointer  14 . Hand-held device  10  also includes an orientation (or tilt) sensor (e.g., a gravitational accelerometer) that is operable to provide an indication of the orientation of hand-held device  10 , and a controller that is configured to compute pointer screen locations where pointer  14  is to be displayed based upon device orientation indications provided by the orientation sensor over time (see FIG.  5 ).” 
         [0010]    Nobuhiko et al patent application publication 2005-0212909 published on Sep. 29, 2005 and entitled Remote video display method, video acquisition device, method thereof, and program thereof states as follows: “According to the usage pattern, when the direction of the partial object that the user wants to see first is predetermined, it is necessary that the respective pieces of camera identification information be made to correspond to north, south, east and west directions, for example, north, north-east, east, . . . directions. The correspondences between the camera identification information and the north, south, east and west directions may be defined by predetermining the shooting direction of the camera device of each camera identification information and placing the remote image sensing device  2  accordingly. In some case, however, such placement of the remote image sensing device  1  is time-consuming. To avoid this, as shown in  FIG. 11 , camera information measuring means  25  is provided in each of the camera devices  2 .sub.1 to  2 .sub.N, and the angle of the shooting direction with respect to true north is measured by a magnetic compass or similar direction sensor  25   a  of the camera information measuring means  25  to obtain the information about the shooting direction of each camera device in north, south, east, or west direction. In the illustrated example, a tilt angle sensor  25   b  as by a gravitational accelerometer is also provided, by which is detected a value .DELTA.y that represents, in terms of the number of pixels on the frame of the captured image, the angle of the shooting direction to the horizontal plane, that is, the angle (angle of elevation/depression) of the y-axis of the image sensor device  7  of the camera  21 . The north, south, east or west direction and the tilt angle .DELTA.yn measured by the camera information measuring means  25  are sent, together with the camera identification information IDn of the camera device  2 .sub.n (n=1, . . . , N), to the image capturing device  1  by the signal sending/receiving means  23  as indicated by the term in parentheses in  FIGS. 11 and 13 . The image capturing device  1  receives from each camera device  2 .sub.n its identification information IDn, north, south, east or west direction and tilt angle .DELTA.yn by the signal sending/receiving means  15 , and stores them in the camera direction storage means  19  in correspondence to the identification IDn as shown in  FIG. 16 , for instance.” 
         [0011]    Rickaby patent application publication 2005-0279577 published on Dec. 22, 2005 and entitled Stairlift states as follows: “In this mode of operation the control unit maintains the seat level by use of the sensor  19  which is in the form of a Gravitational Accelerometer to measure seat angle relative to the vertical. The lift is run slowly up on the rail with the control unit recording data representing both the position of the levelling motor and the relative position of the lift along the rail at all positions on the rail eg by counting teeth on the rack. Other information needed to operate the lift is also recorded such as desired running speed, positions of the end stops etc. In this mode of operation the seat is maintained level by driving the levelling motor  16  to follow the positions recorded during the program mode. Main drive speed, end stops etc are also controlled using the recorded data. The Gravitational Accelerometer is not used to maintain level during this mode but is used as a failsafe device, stopping the lift if the seat fails to be maintained within a defined level range.” 
         [0012]    Epley et al patent application publication 2007-0299362 published on Dec. 27, 2007 and entitled Stimulus-evoked vestibular evaluation system, method and apparatus states as follows: “One or more (and preferably bilateral) eye video cameras  14 , which also can be integrated into the hEADet, are configured to digitally record a video of the subject&#39;s right and/or left ocular, e.g. nystagmatic, response to the ear pressure and/or sound stimuli. One or more positional/inertial sensors  16 , which can take the form of an angular or gravitational accelerometer and which typically is positioned on the subject&#39;s torso such as a shoulder but which can alternatively be positioned on the subject&#39;s head, are used in accordance with the invention to monitor the subject&#39;s head or torso postural sway response to the stimuli.” 
         [0013]    Meitzler et al patent application publication 2009-0143106 published on Jun. 4, 2009 and entitled Hand-Held Communication Device with Auxiliary Input Apparatus, and Method states as follows: “Accordingly, the sensor assembly  200  is well suited for use as an antenna selector so that the device circuitry can use the information regarding the detected hand grip, such as associated with different housing orientations in different modes of operation of the device  100 , to select the appropriate antenna or combination of antennas to provide the best signal strength for the wireless device  100 . In another aspect, the sensor assembly  200  may be used as an orientation sensor. Present art uses a gravitational pull sensor to determine if the phone  100  is held more horizontally such as with images displayed on the screen  124  in the landscape mode or more vertically such as with images displayed on the screen  124  in the document mode. As indicated, in most cases the user holds the phone  100  differently when using the phone  100  in the different modes. Thus, the tactile pressure sensor  200  described herein can be used instead of or in addition to present gravitational and accelerometer orientation technology to better define to the internal processing circuitry not only the gravitational pull forces on the device, but also the hand grip location and/or force on the device. For example, two sensor assemblies  200  mounted at different locations about the phone housing  102  together will give the device circuitry a better chance of predicting the user&#39;s intended use for the device  100  allowing it to better predict the mode in which the user is employing the device  100 . Use of a gravitational sensor alone may not accurately predict where the hand is holding the phone device  100 . Accordingly, without positive information regarding the user&#39;s grip, the phone&#39;s circuitry will not as likely be able to accurately predict where the user is holding the phone  100 . Thus, if the wireless device  100  has several antennas to choose from whereby each antenna is more resistant to negative hand grip effects of a specific grip, and it knows the grip that is being applied to the housing  102 , it can choose the best antenna on the phone  100  to negate hand grip losses without needing to measure receiver performance from each available antenna (which is a long utilized methodology in the art).” 
         [0014]    Lin et al patent application publication 2011-0102149 published on May 5, 2011 and entitled SYSTEM AND METHOD FOR OPERATING AN RFID SYSTEM WITH HEAD TRACKING states as follows: “In  FIG. 3 , the head  312  of the user  310  is positioned facing the tracking device  340 . The left and right light beams  334 ,  338  are received by the sensor  350 . From observation of the positioning of the sources of the left and right light beams  334 ,  338 , namely, the left and right emitters  332 ,  336 , the tracking device  340  can determine various characteristics of the present state of the head  312 . For example, in conjunction with a gravitational gyroscope or other gravitational accelerometer or sensor, the head tracking device can determine whether the left and right emitters  332 ,  336  are on the same level relative to the surface of the Earth. Thus, the tracking device  340  can determine the angle of incline of the head  312  from positioning of the emitters  332 ,  336 .” 
         [0015]    Lemire et al patent application publication 2011-0231996 published on Sep. 29, 2011 and entitled Hospital Bed states as follows: “Currently, the angular position of the patient can be determined by measuring the patient&#39;s current position with respect to a plane of reference (e.g., the floor or the bed frame). This technique, however, suffers from the drawback that any misalignment in the frame of reference severely affects the integrity of the sensed angular position. Another method for inclinometry is by way of gravitational accelerometers. When the accelerometer is in a stationary position, the only force acting on it is the vertical gravitational force having a constant acceleration. Accordingly, the angular position of the patient can be calculated by measuring the deviation in the inclination angle between the inclination axis and the vertical gravitational force.” 
         [0016]    While the aforementioned prior art references describe the use of gravitational accelerometers in various applications, such references do not disclose applicant&#39;s claimed invention. 
         [0017]    Objects of the present invention are to provide: 
         [0018]    An electronic-acoustic device that is capable of providing programmable mono-phonic, stereo-phonic, tri-phonic, and quadri-phonic sound outputs in its primary portrait orientation, its primary landscape orientation, its secondary portrait orientation, and its secondary landscape orientation in response to a spatial orientation sensor. 
         [0019]    An electronic-acoustic device that is capable of providing dramatic multi-channel sound effects in its primary portrait orientation, its primary landscape orientation, its secondary portrait orientation, and its secondary landscape orientation in response to a spatial orientation sensor. 
       FEATURES OF THE PRESENT INVENTION 
       [0020]    An electronic-acoustic device being responsive to at least one input signal and comprising: A spatial orientation sensor for detecting the vertical direction; A sound channel distributor/director for providing a plurality of output signals, and being jointly responsive to said at least one input signal and to said spatial orientation sensor; A multi-channel amplifier being responsive to said plurality of output signals of said sound channel distributor/director; A loudspeaker array being responsive to said multi-channel amplifier for producing different sets of output sounds in the various spatial orientations of said device. 
         [0021]    Features of the present invention are as follows: 
         [0022]    The Electronic-Acoustic Device of the present invention may be configured in its portrait orientations and in its landscape orientations to provide a left sound output and a right sound output utilizing a loudspeaker array in response to a spatial orientation sensor. 
         [0023]    The Electronic-Acoustic Device of the present invention may be configured in its portrait orientations and in its landscape orientations to provide a left sound output, a center or middle sound output, and a right sound output utilizing a loudspeaker array in response to a spatial orientation sensor. 
         [0024]    The Electronic-Acoustic Device of the present invention may be programmed in its portrait orientations and in its landscape orientations to provide various combinations of left and right sound outputs utilizing a loudspeaker array in response to a spatial orientation sensor. 
         [0025]    The Electronic-Acoustic Device of the present invention may be programmed in its portrait orientations and in its landscape orientations to provide various combinations of left, right and center or middle sound outputs utilizing a loudspeaker array in response to a spatial orientation sensor. 
         [0026]    The Electronic-Acoustic Device of the present invention may be configured in its portrait orientations and in its landscape orientations to secure and hold an iphone, an ipod, a smart phone, a cell phone or any other similar device being surrounded by its loudspeaker array. 
         [0027]    The Electronic-Acoustic Device of the present invention may be configured in its portrait orientations and in its landscape orientations to secure and hold an iphone, an ipod, a smart phone, a cell phone or any other similar device surrounded by its left sound output loudspeakers and its right sound output loudspeakers. 
         [0028]    The Electronic-Acoustic Device of the present invention may be configured in its portrait orientations and in its landscape orientations to secure and hold an iphone, an ipod, a smart phone, a cell phone or any other similar device surrounded by its left sound output loudspeaker, its middle or center sound output loudspeakers, and its right sound output loudspeaker. 
         [0029]    The Electronic-Acoustic Device of the present invention may be programmed in its portrait orientations and in its landscape orientations to provide various combinations of sound outputs from its left sound output loudspeakers and its right sound output loudspeakers wherein the sound outputs are derived from input signals provided by an iphone, an ipod, a smart phone, a cell phone or any other similar device. 
         [0030]    The Electronic-Acoustic Device of the present invention may be programmed in its portrait orientations and in its landscape orientations to provide various combinations of sound outputs from its left sound loudspeaker, its middle or center sound loudspeakers, and its right sound loudspeaker wherein the sound outputs are derived from input signals provided by an iphone, an ipod, a smart phone, a cell phone or any other similar device. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0031]    The above and other objects, advantages and features of the present invention will be further appreciated from a reading of the following detailed description in conjunction with the drawing in which: 
           [0032]    FIG. A 1  is a front view of Electronic-Acoustic Device  10  in the primary portrait orientation P 1  according to the present invention. 
           [0033]    FIG. A 2  is a front view of Electronic-Acoustic Device  10  in the primary landscape orientation L 1  according to the present invention. 
           [0034]    FIG. A 3  is a front view of Electronic-Acoustic Device  10  in the secondary portrait orientation P 2  according to the present invention. 
           [0035]    FIG. A 4  is a front view of Electronic-Acoustic Device  10  in the secondary landscape orientation L 2  according to the present invention. 
           [0036]    FIG. A 5  is a partially cross-sectional front view of Electronic-Acoustic Device  10  according the present invention. 
           [0037]    FIG. A 6  is a front view of channel distributor/director  100  according to the present invention. 
           [0038]    FIG. A 7 A is a front view of Electronic-Acoustic Device  10  according to the present invention. 
           [0039]    FIG. A 7 B is a rear view of Electronic-Acoustic Device  10  according to the present invention. 
           [0040]    FIG. A 8  is a right side view of Electronic-Acoustic Device  10  according to the present invention. 
           [0041]    FIG. A 9  is a left side view of Electronic-Acoustic Device  10  according to the present invention. 
           [0042]    FIG. A 10  is a top view of Electronic-Acoustic Device  10  according to the present invention. 
           [0043]    FIG. A 11  is a bottom view of Electronic-Acoustic Device  10  according to the present invention. 
           [0044]    FIG. A 12  is a front view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. 
           [0045]    FIG. A 13  is a rear view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. 
           [0046]    FIG. A 14  is a right side view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. 
           [0047]    FIG. A 15  is a left side view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. 
           [0048]    FIG. A 16  is a top view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. 
           [0049]    FIG. A 17  is a bottom view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. 
           [0050]    FIG. B 1  is a front view of channel distributor/director  100  in the primary portrait operating configuration according to the present invention. 
           [0051]    FIG. B 2  is a front view of Electronic-Acoustic Device  10  in the primary portrait orientation P 1  according to the present invention. 
           [0052]    FIG. B 3  is a front view of channel distributor/director  100  in the primary landscape operating configuration according to the present invention. 
           [0053]    FIG. B 4  is a front view of Electronic-Acoustic Device  10  in the primary landscape orientation L 1  according to the present invention. 
           [0054]    FIG. B 5  is a front view of channel distributor/director  100  in the secondary portrait operating configuration according to the present invention. 
           [0055]    FIG. B 6  is a front view of Electronic-Acoustic Device  10  in the secondary portrait orientation P 2  according to the present invention. 
           [0056]    FIG. B 7  is a front view of channel distributor/director  100  in the secondary landscape operating configuration according to the present invention. 
           [0057]    FIG. B 8  is a front view of Electronic-Acoustic Device  10  in the secondary landscape orientation L 2  according to the present invention. 
           [0058]    FIG. C 1  is a front view of channel distributor/director  100  in the primary portrait operating configuration according to the present invention. 
           [0059]    FIG. C 2  is a front view of Electronic-Acoustic Device  10  in the primary portrait orientation P 1  according to the present invention. 
           [0060]    FIG. C 3  is a front view of channel distributor/director  100  in the primary landscape operating configuration according to the present invention. 
           [0061]    FIG. C 4  is a front view of Electronic-Acoustic Device  10  in the primary landscape orientation L 1  according to the present invention. 
           [0062]    FIG. D 1  is a front view of channel distributor/director  100  in the primary portrait operating configuration according to the present invention. 
           [0063]    FIG. D 2  is a front view of Electronic-Acoustic Device  10  in the primary portrait orientation P 1  according to the present invention. 
           [0064]    FIG. D 3  is a front view of channel distributor/director  100  in the primary landscape operating configuration according to the present invention. 
           [0065]    FIG. D 4  is a front view of Electronic-Acoustic Device  10  in the primary landscape orientation L 1  according to the present invention. 
           [0066]    FIG. E 1  is Table P 1  with other examples of channels CH 11 -CH 14  of FIG. B 1  according to the present invention. 
           [0067]    FIG. E 2  is Table L 1  with other examples of channels CH 21 -CH 24  of FIG. B 3  according to the present invention. 
           [0068]    FIG. E 3  is Table P 2  with other examples of channels CH 31 -CH 34  of FIG. B 5  according to the present invention. 
           [0069]    FIG. E 4  is Table L 2  with other examples of channels CH 41 -CH 44  of FIG. B 7  according to the present invention. 
           [0070]    FIG. F 1  is partially cross-sectional front view of Electronic-Acoustic Device  500  according the present invention. 
           [0071]    FIG. F 2  is a front view of channel distributor/director  590  in the primary portrait operating configuration according to the present invention. 
           [0072]    FIG. F 3  is a front view of Electronic-Acoustic Device  500  in the primary portrait orientation P 1  according to the present invention. 
           [0073]    FIG. F 4  is a front view of channel distributor/director  590  in the primary landscape operating configuration according to the present invention. 
           [0074]    FIG. F 5  is a front view of Electronic-Acoustic Device  500  in the primary landscape orientation L 1  according to the present invention. 
           [0075]    FIG. F 6  is front view of Electronic-Acoustic Device  500  according the present invention. 
           [0076]    FIG. F 7  is rear view of Electronic-Acoustic Device  500  according the present invention. 
           [0077]    FIG. F 8  is right side view of Electronic-Acoustic Device  500  according the present invention. 
           [0078]    FIG. F 9  is left side view of Electronic-Acoustic Device  500  according the present invention. 
           [0079]    FIG. F 10  is top view of Electronic-Acoustic Device  500  according the present invention. 
           [0080]    FIG. F 11  is bottom view of Electronic-Acoustic Device  500  according the present invention. 
           [0081]    FIG. F 12  is front view of Electronic-Acoustic Device  500  according the present invention. 
           [0082]    FIG. F 13  is rear view of Electronic-Acoustic Device  500  according the present invention. 
           [0083]    FIG. F 14  is right side view of Electronic-Acoustic Device  500  according the present invention. 
           [0084]    FIG. F 15  is left side view of Electronic-Acoustic Device  500  according the present invention. 
           [0085]    FIG. F 16  is top view of Electronic-Acoustic Device  500  according the present invention. 
           [0086]    FIG. F 17  is bottom view of Electronic-Acoustic Device  500  according the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     FIGS. A 1  Through A 17   
       [0087]    FIG. A 1  is a front view of Electronic-Acoustic Device  10  in the primary portrait orientation P 1  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the Y 2  direction. 
         [0088]    FIG. A 2  is a front view of Electronic-Acoustic Device  10  in the primary landscape orientation L 1  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the X 2  direction. 
         [0089]    FIG. A 3  is a front view of Electronic-Acoustic Device  10  in the secondary portrait orientation P 2  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the Y 1  direction. 
         [0090]    FIG. A 4  is a front view of Electronic-Acoustic Device  10  in the secondary landscape orientation L 2  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the X 1  direction. 
         [0091]    FIG. A 5  is a partially cross-sectional front view of Electronic-Acoustic Device  10  according the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 ; rechargeable power pack  200 ; automatic orientation detector/sensor  70 ; channel distributor/director  100 ; multi-channel amplifier  300 . Rechargeable power pack  200  receives power from external source  120 . Channel distributor/director  100  receives input signals from signal source  130 . Rechargeable power pack  200  powers: automatic orientation detector/sensor  70  via line  210 ; channel distributor/director  100  via line  220 ; multi-channel amplifier  300  via line  230 . Automatic orientation detector/sensor  70  feeds signals to channel distributor/director  100  via line  72 . Channel distributor/director  100  feeds signals to multi-channel amplifier  300  via line  110 . Multi-channel amplifier  300  feeds signals to: loudspeaker SP 1  via line  310 ; loudspeaker SP 2  via line  320 ; loudspeaker SP 3  via line  330 ; loudspeaker SP 4  via line  340 . Automatic orientation detector/sensor  70  may comprise an orientation sensor or an inclinometer or a positioning indicator or a tilt angle sensor or two-axis gravitational accelerometer  71 . Also shown is gravity vector  80 . 
         [0092]    FIG. A 6  is a front view of channel distributor/director  100  according to the present invention. Channel distributor/director  100  re-directs signals on active channels CH 11  to CH 44  as provided by input signal source  130 . Channel distributor/director  100  provides combinations of signals to amplifier/loudspeaker pairs: AMP 1 /SP 1  to AMP 4 /SP 4 . Channel distributor/director  100  receives orientation or position signals from automatic orientation detector/sensor  70  and re-directs the input signals from the active channels to the pre-chosen or pre-programmed amplifier/loudspeaker pairs. 
         [0093]    FIG. A 7 A is a front view of Electronic-Acoustic Device  10  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; and the front side of housing  60 . 
         [0094]    FIG. A 7 B is a rear view of Electronic-Acoustic Device  10  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; and the rear side of housing  60 . 
         [0095]    FIG. A 8  is a ride side view of Electronic-Acoustic Device  10  according to the present invention. FIG. A 8  shows: loudspeakers SP 2 , SP 3 ; loudspeaker holding or securing means  31 ,  41 ; and the right side of housing  60 . 
         [0096]    FIG. A 9  is a left side view of Electronic-Acoustic Device  10  according to the present invention. FIG. A 9  shows: loudspeakers SP 1 , SP 4 ; loudspeaker holding or securing means  21 ,  51 ; and the left side of housing  60 . 
         [0097]    FIG. A 10  is a top view of Electronic-Acoustic Device  10  according to the present invention. FIG. A 10  shows: loudspeakers SP 1 , SP 2 ; loudspeaker holding or securing means  21 ,  31 ; and the top side of housing  60 . 
         [0098]    FIG. A 11  is a bottom view of Electronic-Acoustic Device  10  according to the present invention. FIG. A 11  shows: loudspeakers SP 3 , SP 4 ; loudspeaker holding or securing means  41 ,  51 ; and the bottom side of housing  60 . 
         [0099]    FIG. A 12  is a front view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. FIG. A 12  shows: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; and the front of attached electronic device  700 . Attached Electronic Device  700  comprises front monitor screen  710 . Attached Electronic Device  700  may provide signals to signal source  130  for processing by channel distributor/director  100  of Electronic-Acoustic Device  10  as hereinbefore described. 
         [0100]    FIG. A 13  is a rear view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. FIG. A 13  shows: loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; the rear side of housing  60 ; and the rear side of attached electronic device  700 . Attached Electronic Device  700  may provide signals to signal source  130  for processing by channel distributor/director  100  of Electronic-Acoustic Device  10  as hereinbefore described. 
         [0101]    FIG. A 14  is a right side view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. FIG. A 14  shows: loudspeakers SP 2 , SP 3 ; loudspeaker holding or securing means  31 ,  41 ; the right side of housing  60 ; and the right side of attached electronic device  700 . 
         [0102]    FIG. A 15  is a left side view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. FIG. A 14  shows: loudspeakers SP 1 , SP 4 ; loudspeaker holding or securing means  21 ,  51 ; the left side of housing  60 ; and the left side of attached electronic device  700 . 
         [0103]    FIG. A 16  is a top view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. FIG. A 16  shows: loudspeakers SP 1 , SP 2 ; loudspeaker holding or securing means  21 ,  31 ; the top side of housing  60 ; and the top side of attached electronic device  700 . 
         [0104]    FIG. A 17  is a bottom view of Electronic-Acoustic Device  10  and attached electronic device  700  according to the present invention. FIG. A 17  shows: loudspeakers SP 3 , SP 4 ; loudspeaker holding or securing means  41 ,  51 ; the bottom side of housing  60 ; and the bottom side of attached electronic device  700 . 
       FIGS. B 1  Through B 8   
       [0105]    FIG. B 1  is a front view of channel distributor/director  100  in the primary portrait operating configuration according to the present invention. Channel distributor/director  100  receives input signals from active channels CH 11  to CH 14  as provided by signal source  130  and distributes/re-directs such signals in response to automatic orientation detector/sensor  70  to amplifier/loudspeaker combinations: AMP 1 /SP 1  to AMP 4 /SP 4  as indicated by the arrows. 
         [0106]    FIG. B 2  is a front view of Electronic-Acoustic Device  10  in the primary portrait orientation P 1  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41  and  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the Y 2  direction. More specifically, loudspeaker SP 1  on the upper left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 11 ; loudspeaker SP 2  on the upper right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 12 ; loudspeaker SP 3  on the lower right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 13 ; and loudspeaker SP 4  on the lower left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 14 ; all of the aforementioned being under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100 . 
         [0107]    FIG. B 3  is a front view of channel distributor/director  100  in the primary landscape operating configuration according to the present invention. Channel distributor/director  100  receives input signals from active channels CH 21  to CH 24  as provided by signal source  130  and distributes/re-directs such signals in response to automatic orientation detector/sensor  70  to amplifier/loudspeaker combinations: AMP 1 /SP 1  to AMP 4 /SP 4  as indicated by the arrows. 
         [0108]    FIG. B 4  is a front view of Electronic-Acoustic Device  10  in the primary landscape orientation L 1  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the X 2  direction. More specifically, loudspeaker SP 2  on the upper left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 22 ; loudspeaker SP 3  on the upper right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 23 ; loudspeaker SP 4  on the lower right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 24 ; loudspeaker SP 1  on the lower left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 21 ; all of the aforementioned being under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100 . 
         [0109]    FIG. B 5  is a front view of channel distributor/director  100  in the secondary portrait operating configuration according to the present invention. Channel distributor/director  100  receives input signals from active channels CH 31  to CH 34  as provided by signal source  130  and distributes/re-directs such signals in response to automatic orientation detector/sensor  70  to amplifier/loudspeaker combinations: AMP 1 /SP 1  to AMP 4 /SP 4  as indicated by the arrows. 
         [0110]    FIG. B 6  is a front view of Electronic-Acoustic Device  10  in the secondary portrait orientation P 2  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the Y 1  direction. More specifically, loudspeaker SP 3  on the upper left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 33 ; loudspeaker SP 4  on the upper right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 34 ; loudspeaker SP 1  on the lower right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 31 ; loudspeaker SP 2  on the lower left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 32 ; all of the aforementioned being under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100 . 
         [0111]    FIG. B 7  is a front view of channel distributor/director  100  in the secondary landscape operating configuration according to the present invention. Channel distributor/director  100  receives input signals from active channels CH 41  to CH 44  as provided by signal source  130  and distributes/re-directs such signals in response to automatic orientation detector/sensor  70  to amplifier/loudspeaker combinations: AMP 1 /SP 1  to AMP 4 /SP 4  as indicated by the arrows. 
         [0112]    FIG. B 8  is a front view of Electronic-Acoustic Device  10  in the secondary landscape orientation L 2  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the X 1  direction. More specifically, loudspeaker SP 4  on the upper left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 44 ; loudspeaker SP 1  on the upper right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 41 ; loudspeaker SP 2  on the lower right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 42 ; and loudspeaker SP 3  on the lower left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 43 ; all of the aforementioned being under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100 . 
       FIGS. C 1  Through C 4   
       [0113]    FIG. C 1  is a front view of channel distributor/director  100  in the primary portrait operating configuration according to the present invention. Channel distributor/director  100  receives input signals from active channels CH 11  and CH 12  as provided by signal source  130  and distributes/re-directs such signals in response to automatic orientation detector/sensor  70  to amplifier/loudspeaker combinations: AMP 1 /SP 1  to AMP 4 /SP 4  as indicated by the arrows. 
         [0114]    FIG. C 2  is a front view of Electronic-Acoustic Device  10  in the primary portrait orientation P 1  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the Y 2  direction. More specifically, loudspeaker SP 1  on the upper left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 11 ; loudspeaker SP 2  on the upper right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 12 ; loudspeaker SP 3  on the lower right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 12 ; loudspeaker SP 4  on the lower left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 11 ; all of the aforementioned being under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100 . This loudspeaker output operating configuration would be the typical left channel/right channel stereo configuration with moderate channel separation in the primary portrait orientation P 1 . 
         [0115]    FIG. C 3  is a front view of channel distributor/director  100  in the primary landscape operating configuration according to the present invention. Channel distributor/director  100  receives input signals from active channels CH 11  and CH 12  as provided by signal source  130  and distributes/re-directs such signals in response to automatic orientation detector/sensor  70  to amplifier/loudspeaker combinations: AMP 1 /SP 1  to AMP 4 /SP 4  as indicated by the arrows. 
         [0116]    FIG. C 4  is a front view of Electronic-Acoustic Device  10  in the primary landscape orientation L 1  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the X 2  direction. More specifically, loudspeaker SP 2  on the upper left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 11 ; loudspeaker SP 3  on the upper right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 12 ; loudspeaker SP 4  on the lower right of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 12 ; loudspeaker SP 1  on the lower left of Electronic-Acoustic Device  10  provides the sound output corresponding to the input signal from channel CH 11 ; all of the aforementioned being under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100 . This loudspeaker output operating configuration would also be a left channel/right channel stereo configuration but with expanded channel separation in the primary landscape orientation L 1 . 
       FIGS. D 1  Through D 4   
       [0117]    FIG. D 1  is a front view of channel distributor/director  100  in the primary portrait operating configuration according to the present invention. Channel distributor/director  100  receives input signals from active channels CH 11  through CH 24  as provided by signal source  130  and distributes/re-directs such signals in response to automatic orientation detector/sensor  70  to amplifier/loudspeaker combinations: AMP 1 /SP 1  to AMP 4 /SP 4  as indicated by the arrows. 
         [0118]    FIG. D 2  is a front view of Electronic-Acoustic Device  10  in the primary portrait orientation P 1  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the Y 2  direction. More specifically, loudspeaker SP 1  on the upper left of Electronic-Acoustic Device  10  provides the sound output corresponding to the combined input signals from channels CH 11 +CH 21 ; loudspeaker SP 2  on the upper right of Electronic-Acoustic Device  10  provides the sound output corresponding to the combined input signals from channels CH 12 +CH 22 ; loudspeaker SP 3  on the lower right of Electronic-Acoustic Device  10  provides the sound output corresponding to the combined input signal from channels CH 13 +CH 23 ; loudspeaker SP 4  on the lower left of Electronic-Acoustic Device  10  provides the sound output corresponding to the combined input signal from channels CH 14 +CH 24 ; all of the aforementioned being under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100 . This loudspeaker output operating configuration would also be a left channel/right channel stereo configuration with moderate channel separation in the primary portrait orientation P 1 . 
         [0119]    FIG. D 3  is a front view of channel distributor/director  100  in the primary landscape operating configuration according to the present invention. Channel distributor/director  100  receives input signals from active channels CH 11  through CH 24  as provided by signal source  130  and distributes/re-directs such signals in response to automatic orientation detector/sensor  70  to amplifier/loudspeaker combinations: AMP 1 /SP 1  to AMP 4 /SP 4  as indicated by the arrows. 
         [0120]    FIG. D 4  is a front view of Electronic-Acoustic Device  10  in the primary landscape orientation L 1  according to the present invention. Electronic-Acoustic Device  10  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  21 ,  31 ,  41 ,  51 ; housing  60 . Also shown are gravitational accelerometer axes  71  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the X 2  direction. More specifically, loudspeaker SP 2  on the upper left of Electronic-Acoustic Device  10  provides the sound output corresponding to the combined input signals from channels CH 11 +CH 21 ; loudspeaker SP 3  on the upper right of Electronic-Acoustic Device  10  provides the sound output corresponding to the combined input signals from channels CH 12 +CH 22 ; loudspeaker SP 4  on the lower right of Electronic-Acoustic Device  10  provides the sound output corresponding to the combined input signal from channels CH 13 +CH 23 ; loudspeaker SP 1  on the lower left of Electronic-Acoustic Device  10  provides the sound output corresponding to the combined input signal from channels CH 14 +CH 24 ; all of the aforementioned being under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100 . This loudspeaker output operating configuration would also be a left channel/right channel stereo configuration with expanded channel separation in the primary landscape orientation. 
       FIG. E 1  Through E 4   
       [0121]    FIG. E 1  is Table P 1  with other examples of channels CH 11 -CH 14  in FIG. B 1  being distributed/directed individually and in combination under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100  to loudspeaker/amplifier combinations AMP 1 /SP 1 -AMP 4 /SP 4  in the primary portrait operating configuration. 
         [0122]    FIG. E 2  is Table L 1  with other examples of channels CH 21 -CH 24  in FIG. B 3  being distributed/directed individually and in combination under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100  to loudspeaker/amplifier combinations AMP 1 /SP 1 -AMP 4 /SP 4  in the primary landscape operating configuration. 
         [0123]    FIG. E 3  is Table P 2  with other examples of channels CH 31 -CH 34  in FIG. B 5  being distributed/directed individually and in combination under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100  to loudspeaker/amplifier combinations AMP 1 /SP 1 -AMP 4 /SP 4  in the secondary portrait operating configuration. 
         [0124]    FIG. E 4  is Table L 2  with other examples of channels CH 41 -CH 44  in FIG. B 7  being distributed/directed individually and in combination under the joint control of automatic orientation detector/sensor  70  and channel distributor/director  100  to loudspeaker/amplifier combinations AMP 1 /SP 1 -AMP 4 /SP 4  in the secondary landscape operating configuration. 
       FIGS. F 1  Through F 17   
       [0125]    FIG. F 1  is partially cross-sectional front view of Electronic-Acoustic Device  500  according the present invention. Electronic-Acoustic Device  500  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  91 ,  93 ,  95 ,  97 ; housing  550 ; rechargeable power pack  570 ; automatic orientation detector/sensor  580 ; channel distributor/director  590 ; multi-channel amplifier  600 . Rechargeable power pack  570  receives its power from external source  560 . Channel distributor/director  590  receives signals from signal source  650 . Rechargeable power pack  570  powers: automatic orientation detector/sensor  580  via line  571 ; channel distributor/director  590  via line  572 ; multi-channel amplifier  600  via line  573 . Automatic orientation detector/sensor  580  feeds signals to channel distributor/director  590  via line  581 . Channel distributor/director  590  feeds signals to multi-channel amplifier  600  via line  591 . Multi-channel amplifier  600  feeds signals to: loudspeaker SP 1  via line  610 ; loudspeaker SP 2  via line  620 ; loudspeaker SP 3  via line  630 ; loudspeaker SP 4  via line  640 . Automatic orientation detector/sensor  580  may comprise an orientation sensor or an inclinometer or a positioning indicator or a tilt angle sensor or a two-axis gravitational accelerometer  582  of FIG. F 1 A. Also shown is gravitational vector  80 . 
         [0126]    FIG. F 2  is a front view of channel distributor/director  590  in the primary portrait operating configuration according to the present invention. Channel distributor/director  590  receives input signals from active channels CH 11  and CH 12  as provided by signal source  650  and distributes/re-directs such signals in response to automatic orientation detector/sensor  580  to amplifier/loudspeaker combinations: AMP 1 /SP 1  to AMP 4 /SP 4  as indicated by the arrows. 
         [0127]    FIG. F 3  is a front view of Electronic-Acoustic Device  500  in the primary portrait orientation P 1  according to the present invention. Electronic-Acoustic Device  500  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  511 ,  521 ,  531 ,  541 ; housing  550 . Also shown are gravitational accelerometer axes  582  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the Y 2  direction. More specifically, loudspeaker SP 1  on the upper middle of Electronic-Acoustic Device  500  provides the sound output corresponding to the combined input signals from channels CH 11 +CH 12 ; loudspeaker SP 2  on the right middle of Electronic-Acoustic Device  500  provides the sound output corresponding to the input signal from channel CH 12 ; loudspeaker SP 3  on the lower middle of Electronic-Acoustic Device  500  provides the sound output corresponding to the combined input signal from channels CH 11 +CH 12 ; loudspeaker SP 4  on the left middle of Electronic-Acoustic Device  500  provides the sound output corresponding to the input signal from channel CH 11 ; all of the aforementioned being under the joint control of automatic orientation detector/sensor  580  and channel distributor/director  590 . This loudspeaker output operating configuration provides: a left channel; a center or middle channel; and a right channel stereo configuration with moderate channel separation in the primary portrait orientation P 1 . 
         [0128]    FIG. F 4  is a front view of channel distributor/director  590  in the primary landscape operating configuration according to the present invention. Channel distributor/director  590  receives input signals from active channels CH 11  and CH 12  as provided by signal source  650  and distributes/re-directs such signals in response to automatic orientation detector/sensor  580  to amplifier/loudspeaker combinations: AMP 1 /SP 1  to AMP 4 /SP 4  as indicated by the arrows. 
         [0129]    FIG. F 5  is a front view of Electronic-Acoustic Device  500  in the primary landscape orientation L 1  according to the present invention. Electronic-Acoustic Device  500  comprises: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  511 ,  521 ,  531 ,  541 ; housing  550 . Also shown are gravitational accelerometer axes  582  being X 1 , X 2 , Y 1  and Y 2  and gravity vector  80  in this case corresponding to the X 2  direction. More specifically, loudspeaker SP 1  on the left middle of Electronic-Acoustic Device  500  provides the sound output corresponding to the input signal from channel CH 11 ; loudspeaker SP 2  on the upper middle of Electronic-Acoustic Device  500  provides the sound output corresponding to the combined input signals from channels CH 11 +CH 12 ; loudspeaker SP 3  on the right middle of Electronic-Acoustic Device  500  provides the sound output corresponding to the input signal from channel CH 12 ; loudspeaker SP 4  on the bottom middle of Electronic-Acoustic Device  500  provides the sound output corresponding to the combined input signals from channel CH 11 +CH 12 ; all of the aforementioned being under the joint control of automatic orientation detector/sensor  580  and channel distributor/director  590 . This loudspeaker output operating configuration provides: a left channel; a center or middle channel; and a right channel stereo configuration with expanded channel separation in the primary landscape orientation L 1 . 
         [0130]    FIG. F 6  is front view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  91 ,  93 ,  95 ,  97 ; and the front of housing  550 . 
         [0131]    FIG. F 7  is rear view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  91 ,  93 ,  95 ,  97 ; and the rear of housing  550 . 
         [0132]    FIG. F 8  is right side view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 1 , SP 2 , SP 3 ; loudspeaker holding or securing means  91 ,  93 ,  95 ; and the right side of housing  550 . 
         [0133]    FIG. F 9  is left side view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 1 , SP 3 , SP 4 ; loudspeaker holding or securing means  91 ,  95 ,  97 ; and the left side of housing  550 . 
         [0134]    FIG. F 10  is top view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 1 , SP 2 , SP 4 ; loudspeaker holding or securing means  91 ,  93 ,  97 ; and the top of housing  550 . 
         [0135]    FIG. F 11  is bottom view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  93 ,  95 ,  97 ; and the bottom of housing  550 . 
         [0136]    FIG. F 12  is front view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  91 ,  93 ,  95 ,  97 ; housing  550 ; and Attached Electronic Device  800  comprising screen monitor  810 . Attached Electronic Device  800  may provide signals to signal source  650  for processing by channel distributor/director  590 . 
         [0137]    FIG. F 13  is rear view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 1 , SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  91 ,  93 ,  95 ,  97 ; the rear of housing  550 . Attached Electronic Device  800  is not visible in this view. 
         [0138]    FIG. F 14  is right side view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 1 , SP 2 , SP 3 ; loudspeaker holding or securing means  91 ,  93 ,  95 ; the right side of housing  550 ; and the right side of Attached Electronic Device  800 . 
         [0139]    FIG. F 15  is left side view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 1 , SP 3 , SP 4 ; loudspeaker holding or securing means  91 ,  95 ,  97 ; the left side of housing  550 ; and the left side of Attached Electronic Device  800 . 
         [0140]    FIG. F 16  is top view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 1 , SP 2 , SP 4 ; loudspeaker holding or securing means  91 ,  93 ,  97 ; the top of housing  550 ; and the top of Attached Electronic Device  800 . 
         [0141]    FIG. F 17  is bottom view of Electronic-Acoustic Device  500  according the present invention showing: loudspeakers SP 2 , SP 3 , SP 4 ; loudspeaker holding or securing means  93 ,  95 ,  97 ; the bottom of housing  550 ; and the bottom of Attached Electronic Device  800 . 
         [0142]    While the present invention has been described in terms of specific illustrative embodiments, it will be apparent to those skilled in the art that many other embodiments and modifications are possible within the spirit and scope of the disclosed principle.