Abstract:
A projector assembly includes a projector for projecting images and a plurality of speakers for reproducing sound. The projector assembly further includes a mounting bracket connected to a surface. The projector assembly includes a support assembly connected to the mounting bracket, wherein the projector and the plurality of speakers are supported by the support assembly. A projection screen system includes a projector, a mounting assembly, and a projection screen assembly. The projection screen assembly includes a first plurality of speakers for reproducing sound transmitted thereto and a projection screen to receive the projected image. The projection screen assembly is mounted to the mounting assembly and the mounting assembly can be mounted to a horizontal surface and a vertical surface. The system includes a power cable to provide AC power between the projection screen assembly and the projector in the projector assembly.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    Many home owners desire the cinematic experience in the comfort of their own living room, basement, or great room. Current home cinema systems are very expensive to purchase and are extremely difficult to install. A custom installer needs to be hired and cabling has to be installed above the ceilings and within the walls of the room. In addition, many components are incompatible so a large amount of time has to be spent understanding the connections (and wiring) needed to install the home cinema system. Further, current screen systems require a connection to AC power located in the ceiling or wall of the room as well as installation of the projection screen mechanism. 
         [0002]    Accordingly, what is desirable is a packaged, full-featured home cinema system that is easy-to-install, and can be installed in a relatively short period of time. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0003]      FIG. 1A  illustrates a projector screen assembly and a projector assembly in a home cinema system according to an embodiment of the invention; 
           [0004]      FIG. 1B  illustrates a projector assembly and a projection screen assembly utilizing wireless audio and video transmission with a receiver in the projector screen assembly according to an embodiment of the invention; 
           [0005]      FIG. 1C  illustrates a projector assembly and a projection screen assembly utilizing wireless audio and video transmission with a receiver in the projector assembly according to an embodiment of the invention; 
           [0006]      FIG. 1D  illustrates a projector assembly and a screen assembly utilizing wireless audio and video transmission with a receiver in both the projector assembly and the projection screen assembly according to an embodiment of the invention; 
           [0007]      FIG. 1E  illustrates a specific home cinema system including a specific A/V receiver according to an embodiment of the invention; 
           [0008]      FIG. 2A  illustrates video signal distribution according to an embodiment of the invention; 
           [0009]      FIG. 2B  illustrates power distribution in the EZ Home Theatre system according to an embodiment of the invention; 
           [0010]      FIG. 3  illustrates remote control operation of the EZ home cinema system; 
           [0011]      FIG. 4A  illustrates a top perspective view of a projector assembly according to an embodiment of the invention; 
           [0012]      FIG. 4B  illustrates an exploded view of the support assembly; 
           [0013]      FIG. 4C  illustrates a support assembly includes two side support areas and and a center area according to an embodiment of the invention; 
           [0014]      FIG. 4D  illustrates how sound is reflected from the central location to the rear walls and then to viewers in the center of the room according to an embodiment of the invention; 
           [0015]      FIG. 5A  illustrates an exploded top perspective view of the projection screen assembly according to an embodiment of the present invention; 
           [0016]      FIG. 5B  illustrates a mounting assembly for the projection screen assembly according to an embodiment of the invention; 
           [0017]      FIG. 5C  illustrates a side view of a semi-exploded view of the projection screen assembly according to an embodiment of the invention; 
           [0018]      FIG. 5D  is a view from a left side of the projection screen assembly; and 
           [0019]      FIG. 5E  is a front view of speaker assemblies in the projection screen assembly according to an embodiment of the invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0020]    The easy-to-install home cinema system may be plugged into any electrical socket and does not require any Custom Electrical Design and Installation. 
         [0021]      FIG. 1A  illustrates a projector screen assembly and a projector assembly in a home cinema system according to an embodiment of the invention. The projector screen assembly and projector assembly can be part of an easy-to-install (EZ) home cinema system. As illustrated in  FIG. 1A , the projector screen assembly can received amplified audio signals from an audio source, video signals from a video source, and power from an external power source. In the embodiment of the invention illustrated in  FIG. 1A , the projector assembly  110  includes a projector  115  and a plurality of speakers, e.g., speakers  124  and  126 . The projection screen assembly includes a screen  131 , a control assembly  135 , and a plurality of speakers  132 ,  134 , and  136 . 
         [0022]    In the embodiment of the invention illustrated in  FIG. 1A , the video signal is transmitted from a video source and passes through the projection screen assembly  120 . In an embodiment of the invention, the video signal is routed through a control assembly  135  in the projection screen assembly  120 , or the video signal can also routed directly to the projector  115  without passing through the projector screen assembly  120 . The video signal passes from the projection screen assembly  120  to the projector  115  in the projection assembly  110 . Images carried by the video signal are projected from the projector  115  back to the screen  131  of the projection screen assembly. 
         [0023]    In the embodiment of the invention illustrated in  FIG. 1A , the amplified audio signal is received from an audio source at the projection screen assembly  120 . Illustratively, the amplified audio signal may be received at a control assembly  135  of the projection screen assembly  120 . A number of signals in the amplified audio signal may be routed to speakers in the projection screen assembly  120 . For example, three audio signals may be routed to speakers  132 ,  134 , and  136  in the projection screen assembly  120 . Illustratively, these three channels of audio signals may be a front left sound signal, a front center sound signal, and a front right sound signal. 
         [0024]    The projection screen assembly  120  (e.g., the control assembly  135 ) may pass other channels of the amplified audio signal from the projection screen assembly to the projector assembly  110 . For example, two channels of the amplified audio signals may be input to the projector assembly  110  and then to two speakers in the projector assembly  124  and  126 . Illustratively, these two channels may be the rear left surround sound signal and the rear right surround sound signal. In an embodiment of the invention, the amplified audio signals may be input directly to the two speakers  124  and  126 . In another embodiment of the invention, the amplified audio signals may be input to input audio jacks the projector  115  of the projector assembly  115  and the projector  115  may also input audio output jacks which are connected to the speakers  124  and  126 . 
         [0025]      FIG. 1B  illustrates a projector assembly and a projection screen assembly utilizing wireless audio and video transmission with a receiver in the projector screen assembly according to an embodiment of the invention. In the embodiment of the invention illustrated in  FIG. 1B , a wireless receiver  153  is included in the projection screen assembly. The wireless receiver  153  receives wireless audio and video signals from a wireless transmitter. For example, there are manufacturers who have developed transmitters which transmit uncompressed high definition video signals along with audio signals. In an embodiment of the invention, control signals and/or authorization signals may also be transmitted by the wireless transmitter. Illustratively, if the video signal includes digital rights management information, the transmitter and the wireless receiver  153  engage in an authorization process before video is transmitted in order to identify if the receiver is authorized to receive the high definition video. The wireless receiver  153  may be located on a control assembly  135 . In the embodiment of the invention illustrated in  FIG. 1B , the audio received at the wireless receiver  153  is input to amplifier  154  which amplifies the audio signals. A number of channels of the amplified audio signal are routed to the plurality of speakers  132 ,  134 , and  136  in the projection screen assembly  120 . For example, three channels (e.g., the front left signal, the front center signal, and the front right signal) are input to the corresponding speaker  132 ,  134 , or  136 . 
         [0026]    The video signal is transmitted from the control assembly  135  to the projector  115  of the projector assembly  110  via a cable  152 . In addition, remaining channels of the amplified audio signals are output from the amplifier  154  and transmitted from the control assembly  135  to the projector  115  of the projector assembly  110  via the cable  152 . Illustratively, one cable with a plurality of conductors may transport both the video signal and the remaining channels of the amplified audio signal to the projector  115 . Illustratively, one physical cable  152  may be utilized to transport the power signal, e.g., a cable jacket may include conductors, wires, or cables for the power, video, and audio signals. The video signals are utilized by the projector  115  to project images corresponding to the video signal back to the screen  131  of the projection screen assembly  120 . The remaining channels of the amplified audio signals are output from the projector  115  to the plurality of speakers  124  and  126 . Illustratively these channels may be the rear left surround sound signal and the rear right surround sound signal. 
         [0027]    In an embodiment of the invention, a wireless receiver may also receive control signals for the audio/visual equipment and/or the projector. The control signals may be transmitted wirelessly via a lower bandwidth wireless protocol or an infrared wireless protocol. Although,  FIG. 1B  illustrates one wireless receiver  153 , this is for simplicity, because two physical wireless receivers may be utilized, i.e., one for the high bandwidth RF video signal and audio signal reception/transmission and one for the low bandwidth RF or infrared control signals. In an embodiment of the invention, the wireless receiver  153  (or wireless receivers  153 ) may be a transceiver in order to transmit wireless signals. The control signals received by the wireless receiver  153  may be transmitted back to audio and video source in order to control the operation of the audio and video source. In an embodiment of the invention, the control signals received by the wireless receiver  153  may be transmitted to the projector assembly in order to control operations of the projector assembly. 
         [0028]      FIG. 1C  illustrates a projector assembly and a projection screen assembly utilizing wireless audio and video transmission with a receiver in the projector assembly according to an embodiment of the invention. In this embodiment of the invention, the only wireless receiver  155  is in the projector assembly  110 . The wireless receiver  155  may be located on a separate circuit board or may be installed in a module that is attached to one of either the projector  115  or one of the plurality of speakers  124  and  126 . In an embodiment of the invention, the wireless receiver  153  may be a transceiver in order to transmit wireless signals. The wireless receiver  155  receives audio and video wirelessly from a wireless transmitter from a video and an audio source. An amplifier  156  receives the audio signal from the wireless receiver and amplifies the audio signals to create an amplified audio signal. Two channels of the amplified audio signal are transmitted to the plurality of speakers  124  and  126 . Illustratively, the rear left surround sound channel and the rear right surround sound channel are transmitted to the rear left speaker  124  and the rear right speaker, respectively. The wireless receiver  155  receives the uncompressed video and transmits the video to the projector  115 . The projector  115  projects images corresponding to the video signal to the screen  131 . 
         [0029]    The amplified audio signals output from the amplifier  156  includes other channels besides the channels transmitted to the plurality of speakers  124  and  126  in the projector assembly  110 . The other or remaining channels are transmitted to the projector screen assembly  120  via a cable  152 . A control assembly  135  in the projector screen assembly  120  receives the remaining channels of the amplified audio signal and the remaining channels are transmitted to the plurality of speakers  132 ,  134 , and  136  in the projection screen assembly. Illustratively, the remaining channels may be the front left signal, the front center signal, and the front right signal and they may be transmitted to the plurality of speakers  132 ,  134 , and  136 . For example, the speaker  132  may be the front left speaker, the speaker  134  may be the front center speaker, and the speaker  136  may be the front right speaker. 
         [0030]    In an embodiment of the invention, a wireless receiver may also receive control signals for the audio/visual equipment. The control signals may be transmitted wirelessly via a lower bandwidth wireless protocol or an infrared wireless protocol. Although,  FIG. 1B  illustrates one wireless receiver  155 , this is for simplicity, because two physical wireless receivers may be utilized, i.e., one for the high bandwidth RF video signal and audio signal transmission, and one for the low bandwidth RF or infrared control signal transmission. The control signals received by the wireless receiver  154  may be transmitted back to audio and video source in order to control the operation of the audio and video source. In an embodiment of the invention, the control signals received by the wireless receiver  154  may be transmitted to the projection screen assembly in order to control operations of the projection screen assembly. In an embodiment of the invention, the wireless receiver  155  may be a transceiver in order to transmit wireless signals. 
         [0031]      FIG. 1D  illustrates a projector assembly and a screen assembly utilizing wireless audio and video transmission with a receiver in both the projector assembly and the projection screen assembly according to an embodiment of the invention. In this embodiment of the invention, a wireless receiver  155  is located in the projector assembly  110  and an additional wireless receiver  153  is located in the projection screen assembly  120 . In the projector assembly  110 , the wireless receiver  155  receives the wirelessly transmitted audio and video signal from a wireless transmitter. The wireless receiver  155  transmits the audio signal to an audio amplifier  156  which amplifies the audio signal to create an amplified audio signal. Two channels of the amplified audio signal are transmitted from the amplifier  156  to the plurality of speakers  124  and  126 . In an embodiment of the invention, the amplified audio signal may be transmitted to the projector  115  and two channels of the amplified audio signal are transmitted from the projector  115  to the plurality of speakers  124  and  126 . The two channels may be the rear left surround sound signal and the rear right surround sound signal and the speakers may be the rear left speaker  124  and the rear right speaker  126 , respectively. The three additional channels of the amplified audio signal may not be utilized in the projector assembly  110  in this embodiment of the invention. 
         [0032]    The wireless receiver  153  in the projection screen assembly  120  may also receive the wirelessly transmitted audio and video signal. In this embodiment of the invention, the wireless receiver  153  receives the wirelessly transmitted video signal, but the video signal is not transferred anywhere or utilized in the projection screen assembly. The wireless receiver  153  transfers the audio signal to the amplifier  154  which generates an amplified audio signal. Three channels of the amplified audio signal are transmitted from the amplifier  154  to the plurality of speakers  132 ,  134 , and  136 . For example, the three channels of the amplified audio signal may be the front left signal, the front center signal, and the front right signal which may be input to the front left speaker  132 , the front center speaker  134 , and the front right speaker  136 , respectively. The two other channels of the amplified audio signal are not utilized in the projection screen assembly  120  and do not need to be transferred to the projector assembly  110  because of the existence of a wireless receiver  155  in the projector assembly  110 . In an embodiment of the invention, the wireless communication protocol may WHDI™ technology which enables wireless delivery of uncompressed HDTV throughout the home with video rates of up to 3 Gbps (uncompressed 1080 p!) in the 5 Ghz unlicensed band, with the same quality as a wired connection and no latency. The wireless receivers  153  or  155  may receive commands wirelessly (e.g., infrared—IR or radio frequency—RF). These wirelessly receivers  153  or  155  may be transceivers in order to transmit the control signals back to the original wireless transmitter in the audio and video data source. The original wireless transmitter may pass these control signals to audio or video devices either by a wired connection, or alternatively by infrared commands. An advantage of this solution is that the user&#39;s system audio and video components may be hidden in closet or attic, and a more powerful wireless solution could be used to allow user&#39;s standard IR or RF remote to control these components. 
         [0033]      FIG. 1E  illustrates a specific home cinema system including a specific A/V receiver according to an embodiment of the invention. An easy-to-install (EZ) home cinema system  100  includes a projector assembly  110 , a projection screen assembly  120 , an Audio/Video (A/V) receiver  140 , and a subwoofer  150 . The projector assembly  110  includes a projector  115  and a plurality of speakers  124  and  126 . The projection screen assembly  120  includes a screen  131 , a control assembly  135 , and a plurality of speakers  132   134   136 . The A/V receiver  140  includes a DVD player  141 , an audio output module  142  and a video output module  144 . The subwoofer  150  includes an audio amplifier  155 . 
         [0034]    A CD or DVD is placed into the DVD player  141  of the A/V receiver  140 . The video signal from the DVD player is output from the video output module  143  of the DVD and A/V receiver  140 . The video signal passes through the projection screen assembly  120  and is input to the projector  115  of the projector assembly. Images representative of the video signal are displayed via the projector  115  on the projection screen  131 . The audio signal is output through the audio output module  142  in the A/V receiver  140  to the subwoofer  150 . The subwoofer  150  includes an audio amplifier  155  which amplifies the received audio signals. The amplified audio signals are transmitted from the subwoofer  150  to the projection screen assembly  120  via cabling. A number of channels of the amplified audio signals are directed to an associated speaker in the plurality of speakers  132   134   126  installed in the projection screen assembly  120 . A remaining number of channels of the amplified audio signals are directed to the projector assembly  110 , and specifically to an associated speaker of the plurality of speakers  124  and  126  installed in the projector assembly  110 . 
         [0035]    A more detailed discussion of the transmission of audio signals in the EZ Home Cinema system is presented below. The audio output from the DVD player  141 , which is associated with the video output from the DVD player  141  is transmitted through an audio output module  142  of the A/V receiver  140  to an input of the subwoofer  150 . In an embodiment of the invention, the audio transmitted out the audio output module  142  includes five surround sound channels and the sound effects channel, i.e., a front right signal, a front center signal, a front left signal, a rear right signal, a rear left signal, as well as a subwoofer signal. 
         [0036]    In an embodiment of the invention, the subwoofer  150  receives the audio signals and a subwoofer signal. The received subwoofer signal drives a transducing apparatus in the subwoofer to produce the associated sound. In an embodiment of the invention, the subwoofer signal may be amplified by an amplifier in the subwoofer  150 . The subwoofer  150  includes an amplifier  155  (which may or may not be the same amplifier that is used for the subwoofer signal). In an embodiment of the invention, the amplifier  155  amplifies the received remaining audio signals, e.g., the surround sound audio signals and the sound effects channel, and then the remaining audio signals are divided into representative channels, e.g., the five surround sound channels or signals (i.e., the front right signal, the front center signal, the front left signal, the rear right signal, and the rear left signal) and the sound effects channel. The amplified audio signals may then be transmitted to an output audio module  153  on the subwoofer  150  which is connected to audio signal cabling. 
         [0037]    In an alternative embodiment, the subwoofer  150  may divide up the signals into the representative channels, and include a number of amplifiers to separately amplify each of the audio signals. Each of the amplifiers amplifies an associated channel audio signal. For example, one amplifier may amplify the left front audio signal. Each of these audio amplifiers may output an associated amplifier signal (together these associated amplified audio signals may be referred to as the amplified audio signals) to an output audio module  153  of the subwoofer  150  and then to audio signal cabling. 
         [0038]    The audio output module  153  of the subwoofer outputs the amplified audio signals to the projection screen assembly  130  via the audio signal cabling. The audio signal cabling may include a 2-pair wire for each channel of the output audio signal. In the projection screen assembly  130 , there may be a cable junction  210  where the audio cabling connects to the speakers integrated into the projection screen assembly  120 . The cable junction  210  may be an interconnect or may be a junction device/splitter where a number of signals are input through a first interface and output through a second interface and a third interface. The projection screen assembly  120  includes a plurality of speakers. In the embodiment of the invention illustrated in  FIG. 1 , the plurality of speakers may be three speakers  132 ,  134 , and  136 . For example, the plurality of speakers may be the front left speaker  132 , the front center speaker  134 , and the front right speaker  136 . In this embodiment of the invention, three of the amplified audio signals being transmitted on three of the audio signal conductors are directed to the associated speaker in the plurality of speakers. Illustratively, the front right audio signal is transmitted to the front right speaker  136 , the front center audio signal is transmitted to the front center speaker  134 , and the front left audio signal is transmitted to the front left speaker  132 . 
         [0039]    The remaining amplified audio signals and associated audio signal cabling exits the cable junction  210  and are coupled to audio cabling to the surround sound speakers located in the projector assembly  110 . For example, these amplified audio signals could be the rear left amplified audio signal and the rear right amplified audio signal of surround sound signals. Illustratively, the plurality of speakers in the projector assembly  110  may be a rear left speaker  124  and a rear right speaker  126 . In an alternative embodiment of the invention, a cable junction  220  in the projector assembly directs the remaining amplified audio signals to a plurality of speakers in the projector assembly  110 . 
         [0040]      FIG. 2A  illustrates video signal distribution according to an embodiment of the invention. The A/V receiver  140  may include a Component Video Output which receives a video signal from the DVD player  141 . In an embodiment of the invention, the A/V receiver  140  may include a high definition video output port  143  e.g., a Digital Visual Interface (DVI) or High Definition Multimedia Interface (HDMI) output port. In an embodiment of the invention, the output port may transmit lower definition video output. In an embodiment of the invention, the high definition video output may be compatible with High-bandwidth Digital Content Protection (HDCP) Digital Rights Management technology. In an embodiment of the invention where the output port is a high definition video output port, the high definition video output port may be the video output module. The video signals from the DVD player in the A/V receiver  140  may pass through a high definition video converter  146  to the high definition video output port  143 . In an alternative embodiment of the invention, audio signals from the DVD player may also pass through the high definition video converter  146  to the high definition video output port  143 . The A/V receiver  140  may also receive or transmit a plurality of analog audio inputs and analog audio outputs. Alternatively, the output port  143  may be a low definition video output port. 
         [0041]    In an embodiment of the invention where the output port is a high definition video output port, the video signals from the high definition video output port  143  are transmitted via an video cable  149  to the projection screen assembly  120 . Specifically, the video cable  149  is coupled to a cable junction  210  in the projection screen assembly  120 . The cable junction  210  may be the same cable junction used for the received amplified audio signals or may be a separate physical device. The cable junction  210  in the projection screen assembly  120  receives the video signal and redirects the video signal through a video cable  117  to a video input port/connector  119  of the projector  115  in the projector assembly  110 . In an embodiment of invention, the projection screen assembly  120  may include a video signal amplifier  128  located at the cable junction  210  that amplifies the received video signal before the amplified video signal is transmitted to the video input connector  119  of the projector  115 . 
         [0042]      FIG. 2B  illustrates power distribution in the EZ Home Theatre system according to an embodiment of the invention. The subwoofer  150  is connected to a power source (such as a standard AC power source, e.g., wall outlet), through a power cable  161 . In an embodiment of the invention, a power cable  162  is coupled between an AC adapter on the subwoofer  150  and the A/V receiver  140 . The A/V receiver  140  receives the AC power and converts it to DC operating voltages which drive the components and subsystems of the A/V receiver  140 . In an embodiment of the invention, an AC power cable  163  is coupled between a second AC adapter plug and the projection screen assembly  120 , e.g., the control assembly  135  in the projection screen assembly  120 . 
         [0043]      FIG. 2C  illustrates a block diagram of electrical components of the projection screen assembly. The projection screen assembly  120  receives the AC power at the control assembly  135 . The control assembly  135  also includes a step-down voltage converter  250  (which may be a transformer). For example, the voltage converter  250  may receive an AC signal and covert the AC input voltage signal to an operating voltage for the motor control module  260 , e.g., 3.3 Volts, 5 Volts, 12 Volts. The motor control module  270  may include a controller that sends signals to drive the motor  275  which drives the projection screen  131 . The motor  275  itself may have an AC input which receives AC power. The step down converter  250  may also supply an operating voltage to the control module  290  in the control assembly  135 . In an embodiment of the invention, the control module  290  and the motor control module  260  may be located on the same physical board, i.e., a control assembly  135 . 
         [0044]    The control module  290  may include an infrared receiver  295  for receiving control signals from a remote control device. The control assembly  135  also may include an AC output port  296  (or adapter plug) to transmit AC power to the projector assembly  110 . A cable  163  may be plugged into the AC output port  296  and is connected to an AC input port of the projector  110 . 
         [0045]      FIG. 3  illustrates remote control operation of the EZ home cinema system. A remote control device  305  may control the EZ home cinema system. The remote control device  305  transmits codes via infrared transmission. The codes may be standard remote control codes. In an embodiment of the invention, an infrared receiver  295  in the control module  290  of the projection screen assembly  120  may receive the transmitted code. Codes may control the screen  131  in the projection screen assembly  120  to raise (go up), deploy (go down) or stop. If the received code is directed for the projection screen assembly  120 , the infrared transceiver  295  transmits the received code to a microcontroller  310  on the control board  290 . The controller or microcontroller  310  transmits a signal to the motor control board  260  which in turn sends a signal to the motor  275 . In an embodiment of the invention, the microcontroller  310  and the control board  260  are on the same physical printed circuit board and in an alternative embodiment, they are on a separate physical printed circuit board. The motor  275  engages a roller which deploys, raises or stops the projection screen  131 . 
         [0046]    If the received code is for a DVD player in the A/V receiver  140 , the infrared or low frequency RF transceiver  295  in the control board  290  transmits the received code through a repeater to the A/V receiver  140 . In an embodiment of the invention, the transmission is via an existing wire (as indicated by line  365 ) connected between the A/V receiver  140  and the control board  290 . In an embodiment of the invention, the transmission is via an infrared wireless channel (as indicated by line  363 ) transmitted by the infrared or low frequency RF transceiver  295  to the A/V receiver  140 . 
         [0047]    In an embodiment of the invention, this transmission (as indicated by line  364 ) is a wireless transmission. In this embodiment of the invention, the transmission of remote control codes is via wireless video channel or signal (such as wireless HDMI channels). In an embodiment of the invention where the projection screen assembly  120  includes a wireless receiver  153 , the control assembly may also include an infrared receiver  295  that receives the control code from the remote control. The wireless receiver  153  may be a transceiver in that it can also transmit wirelessly as well as received information wirelessly. The infrared or low frequency RF receiver  295  transmits the received remote control codes to the wireless transceiver  153 . The wireless transceiver  153  transmits the received remote control codes to the audio and/or video source (e.g., a DVD player) via a wireless video and audio channel (e.g., a HDMI channel or a WHDI channel). In this way, no cable is needed to transfer remote control codes to the audio and video source and an existing wireless channel can be utilized. 
         [0048]    If the received code is for the projector  115 , e.g., adjusting contrast or brightness, or turning on the projector  115 , then the codes are transmitted to the projector  115  in the projector assembly  110 . The received code may be transmitted from the infrared or low frequency RF transceiver  295  utilizing a serial transmission protocol to the projector  115 . Under certain operating conditions, the control board  290  may include a serial transmitter  315  which receives the code from the transceiver and transmits the code (or a signal representative of the code) serially via an RS-232 cable  320  to the projector  115 . 
         [0049]      FIGS. 4A ,  4 B, and  4 C illustrate a projector assembly according to an embodiment of the invention.  FIG. 4A  illustrates a top perspective view of a projector assembly according to an embodiment of the invention. The EZ Home Cinema system may include a projector assembly  400 . The projector assembly  400  may include a mount  405 , a plate  410 , a swivel subassembly  412 , a support assembly  430 , a projector  415 , and a plurality of speakers  420  and  425 . The projector assembly  400  may be connected to the projection screen assembly  120  via a projector cabling system (not shown). The projector cabling system may include conductors, cables, or wires for power and audio signals. The projector cabling system may also include a conductor carrying a video signal. The projector cabling system may also include a RS232 cable for transmitting command signals from the projection screen assembly  120  to the projector  415 . The conductor, wire, or cable carrying the video signal (and/or the RS232 signal) may be coupled to the projector  415  (e.g., at a video input connector and a RS232 input connector of the projector  415 ). The projector  415  may receive the video signal and project an image representative of the video signal, such as the movie that was originally read from the DVD in the A/V receiver  140 . 
         [0050]    The projector mount  405  may be connected to a surface of a viewing area, such as a ceiling of a room. The projector plate  410  may be connected to the projector mount  405  via a swiveling assembly  412 . The swiveling assembly  412  may allow the projector  415  to be placed in a number of positions to change image quality or image directional focus. In an embodiment of the invention, the projector plate  410  may also be connected to an outside surface of the projector  415 . In an embodiment of the invention, the projector plate  410  may be connected to a top surface of the projector  415 , whereas in an alternative embodiment of the invention, the projector plate  410  may be connected to a bottom surface of the projector  415 . 
         [0051]    In an embodiment of the invention, the projector plate  410  may be coupled to a projector support plate  450 . In this embodiment of the invention, the projector support plate  450  may be connected to a surface of the projector  415 , e.g., the top surface of the projector  415  or bottom surface of the projector  415 . The projector  415  is placed in the support assembly  430 . 
         [0052]      FIG. 4B  illustrates an exploded front view of the support assembly.  FIG. 4C  illustrates an exploded back view of the support assembly. The support assembly  430  is connected to the projector support plate  450  by side edges of the projector support plate  450 . The support assembly  430  includes two side areas  480  and  482  and a center area  485 , as illustrated in  FIG. 4C . The projector  415  may be placed in the center area  485  of the support assembly  430 . 
         [0053]    The center area  485  of the support assembly  430  includes a bottom cover  450 , a bottom support frame  452 , and a plurality of side support frames  454  and  456 . The bottom cover  450  is attached to plurality of side support frames  454  to form the center area  485  where the projector  415  is placed. The bottom support frame  452  provides extra support for the center area  485  of the support assembly  430 . The side areas  480  and  482  include speaker mounting assemblies  458  and speaker assemblies  460 . The speaker mounting assemblies  458  are connected or attached to the side support assemblies  454  and  456 . The speaker assemblies  460  are then placed in the speaker mounting assemblies  458 . In an embodiment of invention, a mesh cover may cover the speaker assemblies  460  to prevent a user from touching the speaker assembly  460  or to view the speaker assembly  460 . The mesh cover should not impact the quality of sound produced by a speaker in the speaker assembly  460 . 
         [0054]    A back support frame  465  may be connected to the side support assemblies  454  and  456 , and the speaker mounting assemblies  458 . The back support frame  465  may have openings to allow for venting of the projector  415  and also for cable placement behind the projector  415 . A back cover  470  is attached to a back surface of the back support frame  465  of the support assembly  430 . The back cover  470  provides protection so that users or viewers do not stick their hands inside the projector assembly  400 . The back cover  470  runs across a back face of the side areas  480  and  482  and the center area  485 . The front face of the center area  485  does not have a cover because the lens assembly of the projector  415  is facing in that direction and images would not be able to be projected. 
         [0055]    The rear speakers  420  and  425  (see  FIG. 1 ), which are integrated into the projector assembly  110 , serves as the left and the right surround sound speakers in a 5.1 audio system. When installing surround sound audio systems, a problem often arises with the running of wires to connect to the speakers, e.g., rear speakers  420  and  425 , in the back corners of the room. In an embodiment of the invention, the left rear speaker, e.g., speaker  420 , and the right rear speaker, e.g., speaker  425 , are installed on the ceiling in a more central location, as compared to the rear corners of the room. The surround sound produced from reflection of the sound off of the rear and rear side walls, from a central ceiling position, can produce an acceptable surround sound which has about the same quality as the surround sound produced by the more difficult installation of the surround sound speakers located in the corners of the room. An additional advantage of the centrally located speakers  420  and  425  is that the drivers therein can be angled downward. In an embodiment of the invention, the speakers are angled away from the projector assembly. The speakers may be angled downward in a range of between 25-75 degrees. The speakers may also be angled to face in a rearwardly direction. The speakers may be angled in a rearwardly and downward direction. Alternatively, the speakers may be angled upward. This is a benefit of having the projector assembly and the speakers  420  and  425  located in the center of the room.  FIG. 4D  illustrates how sound is reflected from the central location to the rear walls and then to viewers in the center of the room. 
         [0056]    In an embodiment of the invention, the speakers are directly connected to the mounting assembly. This may result in the speakers not producing a vibration on the projector  110 . In an embodiment of the invention, the speakers may be installed in the side support assemblies, which are connected to the same upper mount as the projector, but where vibration damping mechanisms may be employed to isolate them from the projector vibrationally. For example, the vibration damping mechanism may be a spring connected between the side support assembly and the speakers, a spring or like device connected between the speakers and the mounting assembly. In addition, material may be placed in the side support assembly or on the mounting bracket (where the speakers are connected or coupled to) to dampen the vibration of the speakers. 
         [0057]    In an embodiment of the invention, the audio signal transmitted to the speakers may be notched or filtered to reduce the audio signal at frequencies that may cause resonance or vibration of the speaker assembly. In an embodiment of the invention, in the projector assembly, the received audio signals would be passed through an audio filter, which would notch the amplified audio signal to reduce the amplified audio signal at frequencies that cause the resonance or vibration. In an embodiment of the invention, vibration reduction materials are added to the frame of the projector assembly  110  in the area where the projector is sitting or resting. In an embodiment of the invention, the center support assembly includes the vibration reduction materials. These materials reduce the vibration of the projector assembly when the speakers are driving and producing sound. 
         [0058]    In the embodiments of the invention illustrated in  FIGS. 1C and 1D , the wireless audio receiver and audio amplifier have been built-in to power the wirelessly received audio signal to the speakers. Illustratively, a dongle may include a wireless to receive the wireless audio and video transmission. The dongle may be connected to an audio input jack and/or a video input jack. In an embodiment of the invention, the plurality of speakers may be connected to an audio output jack of the projector, which provides power and channels of the audio signal to the plurality of speakers. 
         [0059]      FIGS. 5A ,  5 B,  5 C,  5 D, and  5 E illustrate a projection screen assembly according to an embodiment of the invention.  FIG. 5A  illustrates an exploded top perspective view of the projection screen assembly according to an embodiment of the present invention. The projection screen assembly  500  includes a main housing  620  (may be referred to as a main extrusion), a control box  530 , a screen assembly  540 , a motor (not shown), speaker assemblies  550 ,  552 , and  554 , cover assemblies  560 ,  562 , and  564 , and a main housing bottom cover  570 , cover support brackets  580  and  582 , and end brackets  590 . 
         [0060]      FIG. 5B  illustrates a mounting assembly for the projection screen assembly according to an embodiment of the invention. A mounting assembly  510  fastens a projection screen assembly  500  to walls or surfaces. The mounting assembly  510  includes a plate  577  including horizontal fastening holes  511  to allow fasteners to connect the projection screen assembly  500  to a horizontal surface, such as a ceiling. The mounting assembly  510  may also include a plate  513  including vertical fastening holes  512  to allow fasteners to connect the projection screen assembly  500  to a vertical surface, such as a wall. The plate  577  and plate  513  form a one-piece mounting bracket  518 . The main housing  620  of the projection screen assembly  500  may be snapped into place over a protruding mounting bar  513  of the mounting assembly  510 . The main housing  620  includes a receiving area  521  and a latch  522  (as illustrated in  FIG. 5C ) to allow the main housing  620  to rest on the mounting bar  513 .  FIG. 5C  illustrates a side view of a semi-exploded view of the projection screen assembly according to an embodiment of the invention. 
         [0061]    The screen assembly  540  rests within the main housing  620 . The screen assembly  540  may be a 100 inch diagonal screen using a 16:9 aspect ratio. Side brackets  521  and  522  are connected to the screen assembly  540 . In an embodiment of the invention, the side brackets  521  and  522  are also connected to a top surface of the main housing  620 . The main housing bottom cover  570  is installed on a bottom side of the main housing  620  and prevents the screen assembly  540  from falling out of the main housing  620 . The main housing also includes a screen deployment gasket  523 , such as the one illustrated in  FIG. 5D .  FIG. 5D  is a view from a left side of the projection screen assembly. When viewing the main housing  620  from the left side, as is shown in  FIG. 5D , the screen deployment gasket  523  is shown in a closed position, e.g., when the screen is not deployed and is stored in the main housing  620 . If the screen is being deployed, (e.g. dropped down) or being raised up, the screen deployment gasket  523  may be moved, e.g., to one side or downward, to allow the screen to exit the main housing  620  in a direction as is illustrated by arrow  524 . 
         [0062]    The control assembly  530  may be attached to a top surface of the main housing  520 . The control assembly  530  may be placed on a top surface so as to allow the infrared receiver, which is disposed on a control board in the control assembly  530 , to receive signals from a remote control. In addition, the placement of the control assembly  530  keeps the control assembly  530  away from the screen assembly  540  and any movement associated with the screen assembly  540 . 
         [0063]    Referring to  FIG. 5A , the speaker assemblies  550 ,  552 , and  554  are connected to a front face of the main housing  620 . In an embodiment of the invention, the left speaker subassembly  550  includes the front left speaker, the center speaker subassembly  552  includes the front center speaker, and the right speaker subassembly  554  includes the front right speaker. In an embodiment of the invention, the speaker subassemblies  550 ,  552 , and  554  are placed so that the speakers are facing slightly downward, as is illustrated in  FIG. 5A . This projects the sounds emitted from the speakers in a downward direction towards the user. As illustrated in  FIG. 5E , the speaker assemblies  550 ,  552 , and  554  each include a tweeter  560  and a woofer  570 . In an embodiment of the invention, the speaker assemblies  550 ,  552 , and  554  may also include a plurality of tweeters  560  and/or woofers  570 . In an embodiment of the invention, the center channel is most important channel and has more information (voice) and typically has more audio power. Thus, the speaker assembly in the center of the projection screen assembly may include a plurality of woofers because the center channel is the most important channel. 
         [0064]    In an embodiment of the invention, the cover assemblies  560 ,  562 , and  564  may be installed to cover the speaker assemblies  550 ,  552 , and  554 . In an embodiment of the invention, the cover assemblies  560 ,  562 , and  564  may have a similar or the same length as the speaker assemblies  550 ,  552 , and  554 . Alternatively, one or more of the cover assemblies  560 ,  562 , and  564  may have a larger length than that of the speaker assemblies  550 ,  552 , and  554 . For example, as illustrated in  FIG. 5A , the left cover assembly  560  may have a longer length than the left speaker assembly  550 . The left cover assembly  560  may be connected to a left end cap (not shown) and also a cover support bracket  580 . The center cover assembly  562  may be connected to the cover support bracket  580  and the cover support bracket  582 . The right cover assembly  564  may be connected to the cover support bracket  582  and the right end bracket  590 . The cover assemblies  560 ,  562 , and  564  may be made of cloth, plastic, metal or other commonly used audio speaker grill materials. 
         [0065]    In embodiments of the invention, the projection screen assembly may include an equalizer. The equalizer may be utilized to modify characteristics of channels of the amplified audio signals to address room characteristics and location of the projection screen assembly compared to the back wall and the ceiling. 
         [0066]    In embodiments of the invention, the equalizer may be located in a separate physical device from the projection screen assembly. Illustratively, the equalizer may be located in the audio/video source or in a separate equalizer component. 
         [0067]    In an embodiment of the invention, a user may be able to adjust equalizer settings. Under certain operating condition, the selection of equalizer settings may be accomplished via the remote control. The equalizer settings may also be established by manually selecting predetermined settings (via a knob or button). In addition, a test may be conducted in the room where the projector assembly and projection screen assembly are located to determine sound characteristics of the room, (or alternatively a viewing area). These unique settings may be stored in an equalizer and transmitted (or sent) to the audio/video source. The audio/video source may utilized the unique equalizer settings for the room (or viewing area) and modify the amplified audio signals accordingly. 
         [0068]    The equalizer settings may be based on an installation location of the projection screen assembly in the room or viewing area. For example, if the speakers in the projection screen assembly are located about twelve inches from the ceiling of the room, the equalizer may adjust frequencies and/or amplitude of the audio signals in order to minimize the quality of the sound caused by the reflecting of the reproduced sound off of the ceiling, which may be significantly different versus having projection screen assembly installed on a wall flush to the ceiling. In addition, the equalizer may also adjust frequencies based on the position of the projection screen assembly to a wall behind the projection screen assembly. The equalizer may also adjust frequencies based on the room (or viewing area acoustics). As noted before, the equalizer may also be a DSP (digital signal processor) that can dynamically adjust EQ settings based on the room acoustics and placement of the screen on the wall or ceiling. 
         [0069]    While the description above refers to particular embodiments of the present invention, it will be understood that many modifications may be made without departing from the spirit thereof. The accompanying claims are intended to cover such modifications as would fall within the true scope and spirit of the present invention. The presently disclosed embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims, rather than the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.