Abstract:
A set-box (SBB) is advanced into a receptacle on the rear of a TV to add functionality to the TV. Digital video information is conveyed from the SBB to the TV using respective HDMI connectors on the SBB and TV that mechanically engage each other, whereas bi-directional control information is passed wirelessly between the SBB and TV.

Description:
I. FIELD OF THE INVENTION 
       [0001]    The present invention relates generally to hardware modules for adding functionalities to devices such as televisions, DVD players, and the like. 
       II. BACKGROUND OF THE INVENTION 
       [0002]    When a TV receiver is developed and released, not all functionality that might ever be desired of the TV can be included or even foreseen. For example, an improved video compression paradigm requiring a complementary decoder to play the video might be introduced after a TV is sold, in which case the TV would not have the requisite decoding capability to play video transmitted in the newer compression paradigm. 
         [0003]    While some products may possess the capability to be remotely updated via a software update, a television might not have such a capability. Furthermore, simply updating a product with software or with a new interface has shortcomings, such as not being able to accommodate industry standards for copy protection and not possessing innate mechanisms to restrict access to the interface, which is otherwise required to prevent unapproved devices from being attached to the interface. 
         [0004]    In co-pending U.S. patent application Ser. No. 11/782,078, incorporated herein by reference, the present assignee has disclosed a set back box (SBB) for upgrading with digital capability a TV having a chassis holding a TV processor, an analog TV receiver, and no digital TV receiver. The SBB includes a housing and a digital TV receiver in the housing. The digital TV receiver is connectable through a high definition multimedia interface (HDMI) cable to the TV processor so that signals on digital channels received by the SBB can be displayed on the TV. The housing of the SBB is slidably engageable with a rear of the chassis of the TV. 
         [0005]    As recognized herein, it may be desirable to establish not only a HDMI path between the TV and SBB but also a secondary path such as a universal serial bus (USB) path to facilitate communication of, e.g., control information. As further understood herein, it is desirable to avoid forcing the end user to make multiple wired connections between components. As also recognized herein, making a single large connector with both HDMI and USB pin-outs may not be feasible due to license constraints that permit approved interfaces only. 
       SUMMARY OF THE INVENTION 
       [0006]    A module is disclosed for adding functionality to a component such as a TV to be augmented. The module includes a module housing for holding components facilitating the functionality, and a high definition multimedia interface (HDMI) connector arrangement engaged with the housing and connectable to a complementary rigidly supported connector on the component for establishing a pathway for communication of digital video to the component to be augmented. A wireless transceiver on the housing is configured for bi-directional communication with a complementary transceiver on the component to augmented to facilitate handshaking communication therebetween. The functionality may be, e.g., video decoding functionality provided by the module but not by the TV. 
         [0007]    The handshaking communication may include device discovery communication. It may also include metadata exchange. In general, the handshaking communication is communication of control data between the component and module. 
         [0008]    The wireless transceiver can be an optical wireless transceiver or a radiofrequency transceiver. The module housing can be disposed in a receptacle on a rear of the TV. The receptacle can have an HDMI connector configured for mechanically engaging the HDMI connector arrangement on the module housing, and the TV also includes a wireless transceiver configured for communicating with the wireless transceiver of the module. 
         [0009]    In another aspect, a system includes a TV defining a monitor, a rear opposed to the monitor, and a receptacle formed in the rear of the monitor. The TV has a digital video connector and a wireless transceiver. A module housing holds components facilitating audio-video functionality. The module housing is disposable in the receptacle, and the module housing includes a digital video connector that mechanically engages the connector of the TV when the housing is moved into the receptacle. The module housing also supports a wireless bidirectional transceiver configured for communicating with the transceiver of the TV. 
         [0010]    In another aspect, a module is engaged with a TV to add functionality to the TV. A mechanical connection is used to communicate digital video data from the module to the TV, while a wireless connection is used to communicate bidirectional control information between the module and TV. 
         [0011]    Thus, in some implementations bi-directional wireless communication is established in addition to an HDMI connection. This new embodiment has variations for the method of establishing contact between the SBB and TV as well as for the method of connection for both the HDMI and bi-directional wireless communication. The system eliminates the installation and use of multiple cables for proper connection between the SBB and TV and allows for flexibility in design. Further, one embodiment of the system implements a pair of HDMI connectors, one on the SBB and the other the TV, so that the connector mating is done in the same time module is slid in for installment. In this embodiment, connector cables are eliminated completely. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0012]      FIG. 1  is a block diagram of a non-limiting system in accordance with present principles; 
           [0013]      FIG. 2   a  is an exploded perspective view with portions cut away showing the rear of the TV chassis and the set-back box; 
           [0014]      FIG. 2   b  is a view of the system in which the set back box is incorporated into the TV and direct contact/connection between the two is established; 
           [0015]      FIG. 3   a  is a view of the rear of a TV with HDMI and optical wireless connectors and set back box with corresponding optical wireless connector as well as HDMI connector; 
           [0016]      FIG. 3   b  shows the set back box incorporated into the rear of the TV, thereby establishing HDMI and bi-directional wireless communication; 
           [0017]      FIG. 4   a  is a variation of the system in which the set back box contacts the TV by an attachment base, with bi-directional wireless connection being established via Bluetooth communicators on both the set back box and TV and with the HDMI connection being established with a HDMI cable; and 
           [0018]      FIG. 4   b  shows yet another embodiment using a HDMI connector cable. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
       [0019]    Referring initially to  FIG. 1 , a system is shown, generally designated  10 , which can include a TV  12  with video display  14  such as a flat panel matrix display or other TV display, a TV processor  16 , and a TV tuner  18 . The display  14  is caused by the TV processor  16  to display TV signals as selected by the TV tuner  18 . Also, the TV  12  may have a data storage  19  such as but not limited to an extended display identification data (EDID) electrically erasable programmable read only memory (EEPROM). Other computer-readable media may be included or substituted, including other types of solid state memory as well as disk-based memory. 
         [0020]    The TV  12  is also associated with one or more communication interfaces  12   a . In one non-limiting implementation the interface  12   a , which can be an Internet Protocol television (IPTV) receiver, codec, or other module, is a HDMI-based interface that may include hardware and software embodying a HDMI transmitter (for sending signals to a set-top box or disk player or other source) and HDMI receiver (for receiving signals from a source). Plural HDMI connectors may be provided. The interface  12   a  may be physically implemented within the housing of the TV  12  or it may be external thereto. The interface  12   a  may include its own storage such as an EEPROM or one-time programming (OTP) ROM. It is to be understood that while  FIG. 1  shows various storages, the information disclosed below may be stored in one common storage or in a storage associated with only the TV  12  or only with the interface  12   a . In any case, as shown the interface  12   a  is the communication interface between the TV  12  and an add-on functionality module  20 , referred to herein as a set-back box (SBB). 
         [0021]    More specifically, as shown in  FIG. 1  an add-on functionality module  20  with internal components  20   a  such as circuits for facilitating the functionality can be connected to the TV  12  by a connector  12   a  such as a High Definition Multimedia Interface (HDMI) connector. The add-on functionality module  20  may include hardware and/or software not included in the TV  12  but desired by a user of the TV  12 . For instance, the module  20  may include a video decoder or other function that is not otherwise included in the TV  12 . The module  20  has an interface  23  that is complementary to the interface  12   a  of the TV  12 . 
         [0022]    The signals to be displayed on the TV  12  can come from a multimedia source  24  such as a set-top box, a cable head end, a satellite source, a disk player, an Internet site, etc. The multimedia source  24  may be connected to the TV  12  directly and/or to the TV  12  via the module  20  as shown. 
         [0023]    While the above disclosure focuses on an example implementation in which the module  20  is used to augment the functionality of a TV  12 , it is to be understood that the module  20  may also be used to augment the functionality of other components, e.g., set top boxes, DVD players, personal computers, etc. For example, as has been postulated in the case of a TV, a DVD player and/or a PC may not have the capability to support some new and future video and/or audio compression system. The module  20  can thus be connected to a PC or DVD to facilitate the support of a future compression algorithm. 
         [0024]    In any case, to provide an illustration of the purpose of the module  20 , if the source  24  is connected to the module  20  to deliver video that is transmitted using a compression algorithm requiring a decoder not possessed by the TV  12  to play the video, the module  20  can be provided with the decoder, decode the video, and then send the decoded video to the TV  12  for playing the video. 
         [0025]    Turning to  FIGS. 2   a ,  2   b ,  3   a , and  3   b , a first embodiment is shown illustrating the TV  12  and the module  20 , displayed in  FIG. 2   a  with an arrow indicating the direction of incorporation of the module  20  into a complimentarily-shaped module bay  26  of the TV  12 . In this instance, the module  20  slides into the bay  26 , which holds an electrical interface  26  such as the HDMI connector  12   a . With this structure, the HDMI connector  12   a  rigidly supported by the housing of the TV  12  aligns itself with the complementary rigidly supported connector  23  located on the module  20 . Once the module  20  is slid into in the module bay  26 , which closely receives the module  20  as shown in  FIG. 2   b , a pathway for communication of digital video to the TV  12  is established. 
         [0026]    Moving to  FIGS. 3   a  and  3   b , a wireless secondary communication path between the module  20  and TV  12  may be appreciated. The module bay  26  of the TV  12  holds an optical communication receiver/transmitter  30  for wireless connection is encased in the module housing in similar fashion. An optical communication receiver/transmitter  32  for wireless connection is also shown on the housing of the module bay  26 . The two wireless connectors  30 ,  32  are designed in the way that logical connection is established when faced each other without requiring severe alignment or physical connection. The arrow  33  indicates the direction of incorporation of the module  20  into the module bay  26 . 
         [0027]      FIG. 3   b  displays the module  20  incorporated into the module bay  26  of the TV  12 . Although not shown in  FIG. 3   b , once the HDMI connector  12   a  of the module  20  aligns with and connects to the complimentary connector  23  of the module bay  26 , a pathway for communication of digital video to the TV  12  is established. When this happens, the wireless receiver/transmitter  30  on the module  20  is in line of sight of the receiver/transmitter  32  to establish a bi-directional communication link between the module  20  and TV  12  for facilitating the exchange of handshaking communication between the TV  12  and module  20 , e.g., for facilitating metadata exchange, device discovery information, authentication data, and the like. 
         [0028]      FIG. 4   a  displays an alternate embodiment in which a module  50  can be engaged with a module attachment base  52  of a TV  54 . The module  50  is shown with its HDMI connector  56  mounted on the left side of the module housing. A corresponding HDMI connector  58  is mounted on the TV  54  housing near, or next to, the module attachment base  52 . The arrow  60  indicates that the module  50  is placed on the module attachment base  52  without direct contact between the HDMI connectors  58 ,  56 . 
         [0029]    Also shown mounted on the module  50  housing is a variation of the wireless transmitter, specifically, a radiofrequency transmitter/receiver such as a Bluetooth transmitter/receiver  62 . A corresponding Bluetooth transmitter/receiver  64  is mounted on the housing of the TV  54  preferably near, or next to, the module attachment base  52 . 
         [0030]    The module  50  is shown placed on the module attachment base  52  in  FIG. 4   b . The Bluetooth transmitters/receivers  62 ,  64  are located in proximity to one another in order to establish a bi-directional wireless communication to facilitate the above-discussed handshaking information exchange. A HDMI cable  66  can be connected to the HDMI connector  58  of the module  50  and to the HDMI connector  56  of the TV  12  to establish a pathway for communication of digital video between the two components. 
         [0031]    Digital video protocols other than HDMI may be used. Also, wireless paths other than optical and rf may be used, e.g., ultrasonic wireless paths may be used. Moreover, more than a single wireless path may be used. 
         [0032]    While the particular HARDWARE MODULE FOR ADDING FUNCTIONALITY TO TELEVISION USING MECHANICAL AND WIRELESS LINKS is herein shown and described in detail, it is to be understood that the subject matter which is encompassed by the present invention is limited only by the claims. For instance, a module of the invention may comprise one, two, or all of the features shown in the figures.