US 20050020320A1 (19) United States (12) Patent Application Publication (10) Pub. N0.2 US 2005/0020320 A1 (43) Pub. Date: Lavelle et al. (54) VEHICLE DISPLAY DEVICE HAVING A WIRELESS TRANSMITTER Jan. 27, 2005 Publication Classi?cation (51) Int. Cl? ........................ .. H04M 3/42; HOSK 11/02; (52) Us. 01. .................... .. 455/569.2; 455/566; 455/345; (76) Inventors: Patrick M. Lavelle, Sayville, NY (US); H04B 1/06 Thomas C. Malone, Miller Place, NY 455/350 (US); James R. Tranchina, Dix Hills, NY (US) (57) Correspondence Address: ABSTRACT There is provided a display device for a vehicle having a F. CHAU & ASSOCIATES, LLC seat. The display device includes an assembly housing 130 WOODBURY ROAD adapted to mount at a rear portion of the seat. A receiver is WOODBURY, NY 11797 (US) adapted to receive at least one of video and audio signals (21) Appl. No.: 10/912,008 from at least one external input device. At least one Wireless (22) Filed: Aug. 5, 2004 Wirelessly transmit the audio signals to at least one Wireless transmitter operatively coupled to the receiver, is adapted to headphone set. The display device is adapted to reproduce Continuation of application No. 09/698,918, ?led on the video signals. In some embodiments of the invention, the at least one Wireless transmitter is adapted to transmit the audio signals based on Code-Division Multiple Access Oct. 27, 2000. (CDMA) technology. Related US. Application Data (63) 114 116 118 120 122 126 136 . TV VCR tuner DVD CD AM/FM video player player radio game I [1 12 125;" V V V V‘? + input bus I - Sig #127 proc/conv : facilities lv TV TV VCR 128 DVD 130 " VCR IR DVD IR CD iL- TXMTR AM/FM TXMTR g on F1 F2 AM/FM EXT ' GAME L R 2.3MHz/2.8MHz (g?) EXT GAME g2 / 154 L R 2.5MHZ / 3.0MHZ display .. 192 Patent Application Publication Jan. 27, 2005 Sheet 1 0f 4 US 2005/0020320 A1 Patent Application Publication Jan. 27, 2005 Sheet 2 0f 4 US 2005/0020320 A1 Patent Application Publication Jan. 27, 2005 Sheet 4 0f 4 US 2005/0020320 A1 Jan. 27, 2005 US 2005/0020320 A1 VEHICLE DISPLAY DEVICE HAVING A WIRELESS TRANSMITTER [0008] According to a second aspect of the invention, the Wireless signals are at least one of radio frequency and infrared signals. CROSS-REFERENCE TO RELATED APPLICATION [0009] According to a third aspect of the invention, the receiver receives an input signal from an external media [0001] This application is a Continuation of US. applica tion Ser. No. 09/698,918, ?led on Oct. 27, 2000, the entirety of Which is incorporated by reference herein. source. [0010] According to a fourth aspect of the invention, the external media source includes at least one of a television 1. TECHNICAL FIELD [0002] The present invention relates generally to vehicles and, in particular, to a display device for a vehicle. The tuner, a video cassette player (VCP), a compact disk (CD) player, a digital video disk (DVD) player, an AM/FM radio, a video game player, global navigation data, and e-mail. display device mounts at a rear portion of a vehicle seat, With [0011] According to a ?fth aspect of the invention, the audio being supplied to the vehicle passengers by a Wireless transmitter included in the display device. The passengers receive the transmitted audio through Wireless headphones. display device further includes signal processing facilities adapted to perform at least one of signal processing and signal conversion, With respect to at least one of the audio signals and the video signals. 2. BACKGROUND DESCRIPTION [0003] As cars have been continuously updated to include neW and useful features for the enjoyment and/or utility of [0012] According to a sixth aspect of the invention, the signal processing facilities are adapted to perform at least a driver and his or her passengers, devices generally found in the home have made their Way into cars as optional one of digital signal processing, encoding, decoding, encrypting, decrypting, compressing, decompressing, ana log-to-digital conversion (ADC), digital-to-analog conver features. Such features include the television, the video sion (DAC), and error correction. cassette player (VCP), the compact disk (CD) player, and the digital video disk (DVD) player. These features undoubtably provide enjoyment and/or utility to the driver and/or pas sengers of a vehicle. For example, children may become occupied by, for example, Watching a moving and, thus, may leave the driver better able to concentrate on operating the vehicle. Moreover, passengers in a vehicle undertaking a long journey may better pass the time by vieWing a movie. [0004] HoWever, it has generally been the case that the vieWing of a movie in a vehicle includes the playing of any corresponding audio on the vehicle’s existing sound system [0013] According to a seventh aspect of the invention, the display device employs one of a liquid crystal display (LCD), light emitting diodes (LEDs), and a gas plasma. [0014] According to an eighth aspect of the invention, the liquid crystal display is based upon one of active matrix technology and passive matrix technology. [0015] According to a ninth aspect of the invention, the display device employs touch screen technology. or on a sound system of the reproducing device (e.g., [0016] According to a tenth aspect of the invention, the display device includes one of picture-in-picture and split integrated television/video cassette player). Such an arrangement may interrupt those passengers Who Wish to screen capability. have a quiet environment, such as those passengers intend [0017] According to an eleventh aspect of the invention, ing to, for example, read or sleep during the trip. the at least one Wireless transmitter includes at least one [0005] Accordingly, there is a need for vehicle display device Which provides an audio output to only those pas sengers intent on receiving the same. multiplexor adapted to select a speci?c input device Whose audio output is to be Wirelessly transmitted to the at least one Wireless headphone set. [0018] According to a tWelfth aspect of the invention, the SUMMARY OF THE INVENTION [0006] The problems stated above, as Well as other related problems of the prior art, are solved by the present invention, at least one Wireless transmitter is adapted to Wirelessly transmit the audio signals to the at least one Wireless headphone set as a left audio channel and a right audio channel. a display device for a vehicle. The display device mounts at a rear portion of a vehicle seat, With audio being supplied to the vehicle passengers by a Wireless transmitter included in [0019] According to a thirteenth aspect of the invention, the display device. The passengers receive the transmitted spond to different frequencies. the left audio channel and the right audio channel corre audio through Wireless headphones. [0007] According to a ?rst aspect of the invention, there is provided a display device for a vehicle having a seat. The [0020] According to a fourteenth aspect of the invention, the at least one Wireless headphone set includes a plurality of Wireless headphone sets and the at least one Wireless display device includes an assembly housing adapted to transmitter is adapted to Wirelessly transmit the audio sig mount at a rear portion of the seat. A receiver is adapted to receive at least one of video and audio signals from at least one external input device. At least one Wireless transmitter nals to each of the plurality of Wireless headphone sets as a left audio channel and a right audio channel. Each of the channels have a different frequency for each of the plurality of Wireless headphone sets. operatively coupled to said receiver, is adapted to Wirelessly transmit the audio signals to at least one Wireless headphone set. The display device is adapted to reproduce the video [0021] According to a ?fteenth aspect of the invention, the signals. bus includes a video bus and an audio bus. Jan. 27, 2005 US 2005/0020320 A1 [0022] According to a sixteenth aspect of the invention, the video bus is coupled to the display device and the audio bus is coupled to the at least one Wireless transmitter. [0023] According to a seventeenth aspect of the invention, the at least one Wireless transmitter includes an optical transmitting device and the at least one Wireless headphone set includes a photosensitive device. [0024] According to an eighteenth aspect of the invention, the at least one Wireless transmitter and the at least one Wireless headphone set include an antenna. [0025] According to a nineteenth aspect of the invention, the at least one Wireless headphone set includes a digital to-analog converter. [0026] These and other aspects, features and advantages of the present invention Will become apparent from the fol loWing detailed description of preferred embodiments, Which is to be read in connection With the accompanying draWings. BRIEF DESCRIPTION OF THE DRAWINGS [0027] FIG. 1A is a block diagram illustrating the ele connections betWeen the system components may differ depending upon the manner in Which the present invention is programmed. Given the teachings herein, one of ordinary skill in the related art Will be able to contemplate these and similar implementations or con?gurations of the present invention. [0033] To facilitate a clear understanding of the present invention, a brief description of the invention Will noW be given, folloWed by a more detailed description With respect to FIGS. 1-3. As noted above, the invention is directed to a display device for a vehicle. The display device mounts at a rear portion of a vehicle seat, With audio being supplied to the vehicle passengers by a Wireless transmitter included in the display device. The passengers receive the transmitted audio through Wireless headphones. Thus, only passengers desiring to receive the audio are provided With the same through the Wireless headphones. Passengers desiring a quiet environment are not disrupted by the reproduction of the audio. As is knoWn to one of ordinary skill in the related art, the Wireless headphones Will include a Wireless receiver for receiving the Wireless signals transmitted by the Wireless transmitter of the display device. [0034] It is to be appreciated that the display device of the ments of a display device for a vehicle according to an invention may include more than one Wireless transmitter. In illustrative embodiment of the invention; such a case, different listeners may simultaneously listen to different audio outputs. For example, if a video cassette [0028] FIG. 1B is a block diagram illustrating the ele ments of a display device for a vehicle according to another player (VCP) and a compact disk (CD) player are coupled to illustrative embodiment of the invention; the display device through an included interface, then one vehicle passenger may listen to the audio output correspond ing to the VCP While another vehicle passenger may listen to the audio output corresponding to the CD player. Thus, the display device need not be coupled to external devices that include a video output. Further, since the display device [0029] FIG. 2 is a diagram illustrating a Wireless trans mitter interacting With a Wireless headphone set based on optical and/or RF transmission, according to an illustrative embodiment of the invention; and [0030] FIG. 3 is a block diagram illustrating a display of the invention may include picture-in-picture capability, device for a vehicle according to an illustrative embodiment tWo vehicle passengers may simultaneously Watch and listen of the invention. to tWo different movies. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS [0031] It is to be understood that the present invention may be implemented in various forms of hardWare, soft Ware, ?rmWare, special purpose processors, or a combina [0035] It is to be appreciated that the Wireless signals can be any type of Wireless signal including, but not limited to, radio frequency and infrared signals. It is to be noted that the current transmission capability (bandWidth) of infrared sig nals is approximately 1.5 to 2.0 Mbits/sec, With a maximum projected bandWidth of 16 Mbits/sec. tion thereof. Preferably, the present invention is imple [0036] mented as a combination of both hardWare and softWare, the ments of a display device 112 for a vehicle according to an softWare being an application program tangibly embodied illustrative embodiment of the invention. The display device on a program storage device. The application program may be uploaded to, and executed by, a machine comprising any 112 mounts at a rear portion of a vehicle seat. The display device 112 includes a ?rst Wireless transmitter 128, a second suitable architecture. The machine may be implemented on Wireless transmitter 130, a receiver 125, facilities for per a computer platform having hardWare such as one or more forming signal processing and/or signal conversion 127 (hereinafter “signal processing/conversion facilities”), and a display 192 (e.g., screen and rendering portion). The display central processing units (CPU), a random access memory (RAM), and input/output (I/O) interface(s). The computer platform may also include an operating system and micro instruction code. The various processes and functions described herein may either be part of the microinstruction code or part of the application program (or a combination thereof) Which is executed via the operating system. In addition, various other peripheral devices may be connected to the computer platform such as an additional data storage device. [0032] It is to be further understood that, because some of the constituent system components depicted in the accom panying Figures may be implemented in softWare, the actual FIG. 1A is a block diagram illustrating the ele device 112 is intended to interface With at least one of the folloWing through the receiver 125: a TV tuner 114, a video cassette player (VCP) 116, a digital video disk (DVD) player 118, a compact disk (CD) player 120, an amplitude modu lation/frequency modulation (AM/FM) radio 122, a video game player 126, and so forth. [0037] The TV tuner 114, the VCP 116, the DVD player 118, the CD player 120, the AM/F M radio 122, and the video game player 126 may also be collectively referred to herein as input devices 190. It is to be appreciated that the devices described above With respect to the input devices 190 are Jan. 27, 2005 US 2005/0020320 A1 merely illustrative and, thus, other devices may also be employed in accordance With the invention, While maintain ing the spirit and scope thereof. [0038] The receiver 125 may include a bus for receiving audio and video signals. Moreover, the receiver 125 may include separate buses for receiving the audio and video (e.g., electrostatic pen) near the screen. In a preferred embodiment of the invention, a liquid crystal display is employed Which uses active matrix technology. [0044] In the case When display device 112 includes picture-in-picture or split screen capability, tWo or more signals. different input devices 190 (e. g., the DVD player 118 and the TV tuner 114) may be input to the display device 112 [0039] The ?rst Wireless transmitter 128 and the second Wireless transmitter 130 each have multiplexing capabilities to enable the selection of a particular device (e.g., one of the plexors (not shoWn) may be employed to determine Which display WindoW is to reproduce a particular video signal input devices 190) Whose audio signal is to be Wirelessly through the receiver 125. In such a case, additional multi from a plurality of video signals. Given the teachings of the invention provided herein, one of ordinary skill in the related art Will contemplate these and various other variations and con?gurations of the elements of the invention, While main taining the spirit and the scope thereof. transmitted. Selection is made through a SELECT (SEL) input. Of course, Wireless transmitters Without such multi plexing capabilities may also be used; hoWever, in such a case, a separate multiplexor(s) Would be coupled betWeen such transmitters and the audio outputs of the input devices 190. Which is operatively coupled to the receiver 125, may [0040] perform such processing/conversion prior to any video sig The elements of the display device 112 are intended to interact With a ?rst Wireless headphone set 152 and a second Wireless headphone set 154. It is to be appreciated that While the illustrative embodiment of FIG. 1A is shoWn With tWo Wireless headphone sets (i.e., 152, 154), the invention is not so limited and, thus, any number of Wireless headphone sets may be used in conjunction With the invention. For example, one or more headphones may be used (e.g., one Wireless headphone set for each passenger). [0041] The ?rst Wireless transmitter 128 and the second Wireless transmitter 130 transmit Wireless signals to the ?rst Wireless headphone set 152 and the second Wireless head phone set 154, respectively. Of course, other con?gurations are possible Which maintain the spirit and scope of the invention, as readily contemplated by one of ordinary skill [0045] The signal processing/conversion facilities 127, nals being provided to the display device 112 and any audio signals being provided to the Wireless transmitters 128 and 130. Of course, other arrangements are possible, including having separate signal processing/conversion facilities for the video signals and the audio signals. [0046] The signal processing/conversion facilities 127 provides the audio signals input to the receiver 125 to the Wireless transmitters 128, 130, and provides the video signals input to the receiver 125 to the display (e.g., screen and rendering portion). [0047] The signal processing/conversion facilities 127 may include, but are not limited to, Digital Signal Processors (DSPs), and facilities for performing encoding/decoding, in the related art. encrypting/decrypting, compressing/decompressing, ana log-to-digital conversion (ADC), digital-to-analog conver [0042] An antenna 136 may be located Within or external to the vehicle. For example, antenna 136 may be the original antenna included in the vehicle, Which is typically used to rection may include, but is not limited to, Cyclic Redundancy Checking (CRC), Error Correction Code or receive frequencies associated With AM/FM radio stations and television stations. Such an antenna is typically located in the Windshield or protruding from the exterior of the vehicle. Moreover, the antenna 136 may be a special purpose antenna, capability of receiving frequencies corresponding to, for example, satellite communications from a satellite or satellite netWork. The satellite communications may include movies and other media types (e.g., music, global navigation data, e-mail, and so forth). Of course, the antenna 136 may receive various media types (including those mentioned above) from other types of transmission netWorks (e.g., land-based). In any event, the antenna 136 is coupled to the display device 112 through the receiver 125. [0043] It is to be appreciated that the display device 112 is not limited to any particular kind of display device. Accord ingly, display devices may be used Which include, but are not limited to, liquid crystal displays (LCDs), light emitting diodes (LEDs), and gas plasma. It is to further appreciated that any variations of the aforementioned types of displays may be used. For example, With respect to liquid crystal displays, active matrix (e.g., thin ?lm transistor) technology or passive matrix (e.g., dual scan) technology may be employed. The display device 112 may also employ touch sion (DAC), error correction, and ?ltering. Such error cor Error Checking and Correcting (ECC), checksum, and so forth. With respect to, for example, encoding/decoding, encrypting/decrypting, and compressing/decompressing, the former of each pair may be performed by any of the input devices and the latter is performed by the signal processing/ conversion facilities 127. [0048] It is to be noted that the Wireless signals may be encoded to prevent interference betWeen the tWo Wireless headphone sets 152, 154. Such encoding may be based on technologies such as, for example, spread spectrum tech nology. [0049] In many cases, the facilities described above may be implemented by one or more codecs. In other cases, additional and/or other circuitry may be required. It is to be appreciated that one of ordinary skill in the related art Will contemplate these and various other facilities for performing signal processing and/or signal conversion, While maintain ing the spirit and scope of the invention. [0050] FIG. 1B is a block diagram illustrating the ele ments of a display device 512 for a vehicle according to another illustrative embodiment of the invention. screen technology, so that users can interact With the console [0051] by either touching the screen or placing a speci?ed device mitter 510, a receiver 125, signal processing/conversion The display device 512 includes a Wireless trans Jan. 27, 2005 US 2005/0020320 A1 facilities 127, and a display 192 (e.g., screen and rendering portion). The display device 112 is intended to interface With the input devices 190. [0052] Similar to the display device 112 of FIG. 1A, the display device 512 of FIG. 1B is intended to interact With a plurality of Wireless headphone sets. For illustrative pur poses, the ?rst Wireless headphone set 152 and the second Wireless headphone set 154 are shoWn. [0053] It is to be appreciated that the main difference betWeen the display device 112 of FIG. 1A and the display device 512 of FIG. 1B is that the ?rst and the second Wireless transmitters 128, 130 have been replaced by the Wireless transmitter 510 of FIG. 1B, the latter for Wirelessly transmitting the audio signals (hereinafter also referred to as “audio programs”, With each input device outputting a particular audio program) based upon Code-Division Mul tiple Access (CDMA) technology. The coding and other related operations may be performed by the Wireless trans mitter 510 and/or by the signal processing/conversion facili ties 127. In any event, the requisite circuitry for implement ing CDMA technology Would be required both on the transmission end (the display device) and the receiving end (the Wireless headphone sets). Such circuitry may include, for eXample, convolutional encoders, Walsh code generators in the related art Will contemplate these and various other arrangements for implementing the invention, While main taining the spirit and scope thereof. [0057] In the illustrative embodiment of FIG. 1B, the Wireless signals (audio programs) are shoWn transmitted in tWo distinct Ways. In the ?rst approach 550, the left and right audio channels of each of the plurality of audio programs are transmitted as separate streams. In the second approach 560, the left and right audio channels of each of the plurality of audio programs are combined onto a single stream. In the latter case, separation of the channels is performed in the Wireless headphone sets. In any event, the plurality of audio programs are then combined, superimposed onto a carrier frequency, and transmitted by the Wireless transmitter 510 for receipt by the Wireless headphone sets. These and various other Ways in Which to transmit a plurality of audio programs to a plurality of Wireless headphones sets may be readily contemplated and implemented by those of ordinary skill in the art, While maintaining the spirit and scope of the invention. [0058] FIG. 2 is a diagram illustrating the Wireless trans mitter 128 interacting With the Wireless headphone set 152 based on optical and/or RF transmission, according to an illustrative embodiment of the invention. It is to be appre and PN (pseudo random number) sequence generators, com ciated that the folloWing description is also applicable to the biners, modulators, de-modulators, correlators, digital-to Wireless transmitters 130 and/or 510. The Wireless transmit ter 128 includes an optical transmitting device 212 (e.g., an LED, a laser, and so forth) and an antenna 214. The Wireless headphone set 152 includes a photosensitive device 252 (e.g., a phototransistor, a solar cell(s), a SEED (self-optic effect device), and so forth) and an antenna 254. The optical analog converters (DACs), analog-to-digital converters (ADCs), and so forth. Given the teachings of the invention provided herein, one of ordinary skill in the related art Will readily contemplate the elements required to implement CDMA in a display device according to the invention, While maintaining the spirit and scope thereof. [0054] It is to be appreciated that the use of CDMA technology enables a single transmitter (i.e., Wireless trans mitter 510) to transmit all programs simultaneously, With a user being able to select the program he or she intends to hear via a selector located on, for eXample, his or her Wireless headphone set. Moreover, the use of CDMA tech nology enables all of the available frequency bandWidth to be used, While simultaneously minimiZing interference. transmitting device 212 and the photosensitive device 252 are used for Wireless transmission and reception of optical signals, respectively. The antenna 214 and the antenna 254 are used for Wireless transmission and reception of RF signals, respectively. [0059] In the case of Wireless optical transmission, the optical transmitting device 212 Wirelessly transmits optical (digital) signals to the Wireless headphone set 152 by pulsing its light output (e.g., off equals a Zero (0) and on equals a one The photosensitive device 252 in the Wireless head [0055] According to one illustrative embodiment of the invention, the audio programs may be pre-stored in a memory system such that pre-speci?ed memory locations are used to store speci?c audio programs (i.e., a pre-de?ned phone set 152 detects the optical signals Wirelessly trans mitted by the optical transmitting device 212. mapping). Of course, a dynamic mapping approach may also digital-to-analog converter (DAC) 256 for converting the digital signals into analog signals. The analog signals are be employed. In either case, a memory addressing scheme may be used to Write the programs into memory and read them therefrom. A processor and governing program or operating system may be employed to control the memory operations. The processor, governing program or operating system, and memory system may be implemented as part of [0060] The Wireless headphone set 152 also includes a then provided to a left channel speaker 282 and a right channel speaker 284 either directly or after processing by another signal processing/conversion facilities 197. For eXample, in the latter case, the DAC 256 may simply convert the signal processing/conversion facilities 127, the Wireless the Wireless digital signal to a composite analog signal, Which is then separated by the other signal processing/ transmitter 510, a combination thereof, or separately as conversion facilities 197 into right and left audio channels independent elements of the display device 512. Of course, (When the DAC 256 is separate from the signal processing/ conversion facilities 197). Other processing by the signal processing/conversion facilities 197 may include, for other arrangements are possible and readily contemplated by one of ordinary skill in the art. [0056] It is to be appreciated that the audio programs need not be stored but may be directly processed by, e.g., the signal processing/conversion facilities 127 and/or the Wire less transmitter 510 in real-time (or With slight delay) for the purposes of transmitting in CDMA format. Given the teach ings of the invention provided herein, one of ordinary skill eXample, ?ltering of the analog signals. [0061] It is to be appreciated that different frequencies may be used for right channels and left channels. For eXample, as shoWn in FIG. 1A, the Wireless headphone set 152 receives a left channel audio signal corresponding to 2.3 MHZ and a right channel audio signal corresponding to 2.8 Jan. 27, 2005 US 2005/0020320 A1 MHZ, While the Wireless headphone set 154 receives a left channel audio signal corresponding to 2.5 MHZ and a right channel audio signal corresponding to 3.0 MHZ. Such an arrangement alloWs for more than one Wireless headphone set to be actively used Without frequency interference ther ebetWeen. Given the teachings of the invention provided herein, one of ordinary skill in the related art Will contem plate these and other approaches for facilitating Wireless transmission betWeen the Wireless transmitters 128, 130 and the Wireless headphone sets 152, 154 While maintaining the spirit and scope of the invention. [0062] It is to be appreciated that a processor 276 may be used to control the functions of the DAC 256 and the signal processing/conversion facilities 197. It is to be further appreciated that the DAC 256 may be separate from (as shoWn) or part of the signal processing/conversion facilities receiving composite video and audio signals, or altogether separate buses for video and audio, Which corresponding processing circuitry for each. [0068] It is to be appreciated that While the display device 312 is shoWn to include tWo Wireless transmitters (128, 130), any number of Wireless transmitters may be employed including only one Wireless transmitter. It is to be further appreciated that the locations of the Wireless transmitters 128, 130 in FIG. 3 are merely illustrative. Such transmitters (including the case When only one transmitter is used) may be located anyWhere on or in the display device. For eXample, a transmitter(s) may be located on the top, bottom, side, front, or rear of the display device. The transmitter may be ?ush, fully or partial protruding With respect to one or more surfaces of the display devices. Given the teachings of 197. the invention provided herein, one of ordinary skill in the related art Will contemplate these and various other locations [0063] The preceding description regarding the functions employed by the display device. of the DAC 256 and the signal processing/conversion facili and con?gurations of the Wireless transmitters that are ties 197 may also be applied in the case of RF transmission. In such a case, the transmission and reception functions of [0069] Associated With the display device 312 of FIG. 3 the optical transmitting device 212 and the photosensitive Wireless headphone set 154 (not shoWn), Which receive device 252 are replaced by those of the antennas 214 and 254, respectively. That is, the antenna 214 is used to Wire lessly transmit an RF signal Which is then received by the Wireless signals from the ?rst Wireless transmitter 128 and antenna 254. A modulator/demodulator may be included or herein, one of ordinary skill in the related art Will contem described herein With reference to the accompanying draW ings, it is to be understood that the present system and method is not limited to those precise embodiments, and that various other changes and modi?cations may be affected therein by one skilled in the art Without departing from the scope or spirit of the invention. All such changes and plate these and other optical transmitting devices, photosen modi?cations are intended to be included Within the scope of associated With the antennas 214 and 254 to perform such functions as are knoWn to one of ordinary skill in the related art. [0064] Given the teachings of the invention provided sitive devices, and con?gurations of the elements of the invention Which alloW for the transmission and reception of any type of Wireless signal (e.g.,analog and digital) and appropriate processing/conversion to facilitate reproduction of the content of the Wireless signals provided by the Wireless transmitters 128, 130. [0065] The preceding description of the display device 112 has primarily focused on features that may be included in the are the ?rst Wireless headphone set 152 and the second the second Wireless transmitter 130, respectively. [0070] Although the illustrative embodiments have been the invention as de?ned by the appended claims. What is claimed is: 1. A display device for a vehicle having a seat, compris ing: an assembly housing, Wherein at least a portion of the assembly housing is adapted to be mounted in the seat; at least one media source operatively coupled to the display device for providing at least one of video and display device 112 to enhance the operation thereof. A audio signals from the at least one media source to the description of mounting arrangements for the display device display device; and 112 Will noW be given. [0066] FIG. 3 is a block diagram illustrating a display device 312 for a vehicle according to an illustrative embodi ment of the invention. FIG. 3 is shoWn With the minimum number of elements, so that the mounting arrangement of the display device is emphasiZed. In particular, the display device 312 is mounted on the rear of a seat of the vehicle. [0067] The display device 312 includes the ?rst Wireless transmitter 128, the second Wireless transmitter 130, and the receiver 125. Also shoWn With a dashed line is the Wireless transmitter 510, Which may be employed in embodiments of the invention Which implement CDMA technology. The folloWing description, hoWever, Will be directed to the ?rst and the second Wireless transmitters 128, 130. The video and audio signals from the input devices 190 are provided to the display device 112 through the receiver 125. In a preferred embodiment, the receiver 125 includes separate inputs for video signals and audio signals. Of course, other arrange ments are possible, including, but not limited to, inputs for at least one Wireless transmitter adapted to Wirelessly transmit the audio signals to at least one Wireless receiver or speaker. 2. The display device according to claim 1, Wherein the assembly housing is mounted in a headrest of the vehicle seat. 3. The display device according to claim 1, Wherein the assembly housing is mounted in a body of the vehicle seat. 4. The display device according to claim 1, Wherein the assembly housing includes a face portion adapted to be mounted substantially ?ush With the vehicle seat. 5. The display device according to claim 4, Wherein the at least one Wireless transmitter is positioned on the face portion. 6. The display device according to claim 1, Wherein the audio signals are Wirelessly transmitted as at least one of radio frequency and infrared signals. 7. The display device according to claim 1, Wherein the at least one media source includes at least one of a television Jan. 27, 2005 US 2005/0020320 A1 tuner, a video cassette player (VCP), a compact disk (CD) player, a digital video disk (DVD) player, an AM/FM radio, a video game player, global navigation data, and e-mail. 8. The display device according to claim 1, further com prising signal processing facilities adapted to perform at least one of signal processing and signal conversion, With 19. The display device according to claim 16, further comprising at least one multiplexer adapted to select a media source of the at least tWo media sources Whose audio output is to be Wirelessly transmitted to the at least one Wireless receiver or speaker. respect to at least one of the audio signals and the video 20. The display device according to claim 16, Wherein the assembly housing is mounted in a headrest of the vehicle signals. seat. 9. The display device according to claim 8, Wherein the signal processing facilities are adapted to perform at least 21. The display device according to claim 16, Wherein the assembly housing is mounted in a body of the vehicle seat. 22. The display device according to claim 16, Wherein the assembly housing includes a face portion adapted to be mounted substantially ?ush With the vehicle seat. 23. A display device for a vehicle having a seat, compris one of digital signal processing, encoding, decoding, encrypting, decrypting, compressing, decompressing, ana log-to-digital conversion (ADC), digital-to-analog conver sion (DAC), and error correction. 10. The display device according to claim 1, Wherein the display device employs one of a liquid crystal display (LCD), light emitting diodes (LEDs), and a gas plasma. 11. The display device according to claim 1, Wherein the display device includes one of picture-in-picture and split screen capability. 12. The display device according to claim 1, Wherein the at least one Wireless transmitter comprises an optical trans mg: an assembly housing, Wherein at least a portion of the assembly housing is adapted to be mounted in the seat; at least tWo media sources operatively coupled to the display device for providing at least one of audio and video signals from the at least tWo media sources to the display device; and mitting device. 13. The display device according to claim 1, Wherein the at least one Wireless transmitter comprises an antenna. 14. The display device according to claim 1, Wherein the at least one Wireless transmitter is adapted to transmit the audio signals based on Code-Division Multiple Access (CDMA) technology. 15. The display device according to claim 1, Wherein the display device is adapted to reproduce the video signals for display. 16. A display device for a vehicle having a seat, compris mg: an assembly housing, Wherein at least a portion of the assembly housing is adapted to be mounted in the seat; at least tWo media sources operatively coupled to the display device for providing at least one of audio and video signals from the at least tWo media sources to the display device; and a Wireless transmitter adapted to Wirelessly transmit the audio signals from the at least tWo media sources to at least one Wireless receiver or speaker. 17. The display device according to claim 16, Wherein the Wireless transmitter simultaneously transmits the audio sig nals from the at least tWo media sources to the at least one Wireless receiver or speaker. 18. The display device according to claim 16, Wherein the Wireless transmitter simultaneously transmits the audio sig nals from the at least tWo media sources to the at least one Wireless receiver or speaker and to at least one other Wireless receiver or speaker. at least tWo Wireless transmitters adapted to Wirelessly transmit the audio signals from the at least tWo media sources to a plurality of Wireless receivers or speakers. 24. The display device according to claim 23, Wherein a ?rst Wireless transmitter is adapted to Wirelessly transmit audio signals from one of the at least tWo media sources to a ?rst Wireless receiver or speaker, and Wherein a second Wireless transmitter is adapted to Wirelessly transmit audio signals from another of the at least tWo input sources to a second Wireless receiver or speaker. 25. The display device according to claim 24, Wherein the ?rst and second Wireless transmitters simultaneously trans mit the audio signals from the at least tWo media sources to the ?rst and second Wireless receivers or speakers. 26. The display device according to claim 24, Wherein each of the ?rst and second Wireless transmitters are opera tively coupled to a multiplexer for selecting the one or the other of the tWo input sources Whose audio signals are to be Wirelessly transmitted. 27. The display device according to claim 23, Wherein the assembly housing is mounted in a headrest of the vehicle seat. 28. The display device according to claim 23, Wherein the assembly housing is mounted in a body of the vehicle seat. 29. The display device according to claim 23, Wherein the assembly housing includes a face portion adapted to be mounted substantially ?ush With the vehicle seat.
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