1. Field of the Invention
The invention relates to television display systems.
2. Summary of the Known Art
Initially, televisions (TVs) were capable of receiving outside programming via the use of an analog antenna. The analog antenna would receive analog signals from a transmission tower and the television system would display audio and video images on the display of the television. With the growth of cable television, cable television providers provided programming to televisions via a cable set top box. The cable set top box would receive television signals from a coaxial cable. The cable set top box would descramble these signals and provide them to the television, wherein the television would then display the audio and video images. Further improvements in televisions incorporated the use of additional electronics for “cable ready” television systems. These television systems already contain additional electronics for descrambling a cable signal, minimizing the need for a cable set top box.
However, with the advent of digital television, cable providers and others provided even more complex programming to a television using a digital set top box. The digital set top box has the capability of descrambling hundreds of channels but also had additional capabilities, such as providing on demand programming and other interactive features. Even more recently, modern television systems have integrated both an Internet connection capability combined with a high performance central processing unit and/or graphics processing unit. Many third party applications can be downloaded by the users of the television systems, including video streaming services and gaming applications.
As these video streaming services, gaming applications and other applications become more complex, more powerful processing is required by the television system. As such, central processors and graphic processors that are integrated within the television systems may become obsolete in terms of their computing capability, but the display of the television system may not obsolete in terms of the display capability. As a work around, some users utilize an over the top box or set top box in order to run updated applications. These add on devices, however, compromise the user experience, as the user now needs to operate multiple remote controls to power on the systems and to go to the desired content. Further complicating matters, each set top box or television system may have very different graphical user interfaces further compromising the user experience.
A modular television system may include a main module housing. Located within the main module housing may be a main module processor, a display, and at least one computing module port. Each of the display, audio output device and computing module ports are in communication with the main module processor. The main module processor functions to present audio and video received by the main module processor.
In addition, the main module processor is configured to communicate with a removable computing module. The removable computing module is configured to connect to the computing module port of the main module. The removable computing module has a computing module processor, wherein the main module processor is configured to communicate with data from the computing module processor when presenting audio and video received by at least one of a plurality of inputs/output ports. The plurality of input/output ports are in communication with the main module processor or the computing module processor.
In another embodiment, the modular television system may include a display subsystem and a television module subsystem. The display subsystem has a housing that contains a display panel for displaying images and display subsystem port. The television module subsystem has a housing that contains a main board and a television module port in communication with the main board. The main board is located within the housing and is configured to communicate with the display subsystem via at least one cord.
The modular television system may also include a timing controller module in communication with the display panel for controlling images displayed by the display panel of the display subsystem and a backlight controller in communication with the display panel as well. The backlight controller is configured to control the backlighting of the display panel. A power supply may be located in the housing of the television module subsystem and functions to supply power to the main board of the television module subsystem and the display subsystem. The timing controller module and/or backlight controller may be located either in the housing of the television module subsystem or the housing of the display subsystem. This allows either or both the timing controller module or backlight controller to be located in the display subsystem or the television module subsystem thereby providing a modular design for the television system.
Further objects, features and advantages of this invention will become readily apparent to persons skilled in the art after a review of the following description, with reference to the drawings and claims that are appended to and form a part of this specification.
Referring now to
Referring to
Located within the portion 20 of the housing 18 is a main module 24. As will be explained later, the main module 24 has a main module processor that is in communication with the plurality of the input/output ports 22. The plurality of input/output ports 22 may include any one of a number of different ports. For embodiment, the plurality of input/output ports could include universal serial bus (USB) ports, high definition multimedia interface (HDMI) ports, Ethernet ports, coaxial cable ports, digital video ports, video graphics array (VGA) ports, and the like. Additionally or alternatively, the input/output ports 22 could include any one of a number of different wireless interfaces such as Wi-Fi or Bluetooth interfaces.
Also in communication with the main module 24 are removable computing modules 26 and 28 that are in communication with the main module 24 via a connector, which will be described in more detail later. As best shown in
Referring to
In this embodiment, the main module 24 is in direct communication with the ports 22 and the display 12. The main module 24 can control what is displayed on the display 12 as well as receive inputs or transmit outputs to or from the ports 22. When the computing modules 26 and/or 28 are connected to the main module 24 via the ports 32, 34, 36, and 38, this allows the computing modules 26 and 28 to interact with the ports 22 as well as control what is displayed on the display 12. The main module 24 may be in charge of presenting audio and video on the display 12 in viewing conditions and may bear the function of image and audio post processing as well as be in charge of television receiving in network connections.
The computing modules 26 and/or 28 may be in charge of digital multimedia decoding of various formats and execution of various applications. For these reasons, the computing modules 26 and/or 28 may have a more powerful central processor or graphic processor to power modern operating systems, such as Linux, Android, and iOS and others. By making the computing modules 26 and/or 28 separate from the main modules 24, one can update the modular television system 10 by simply unplugging an older computing module and replacing with a newer and more powerful computing module. This allows the user to retain the display 12 which may still be current enough to date, but replace and upgrade the computing power providing audio and video images to the display 12.
Referring to
Also in communication with the system bus 46 may be an analog video decoder 48, an Ethernet interface 50, a control interface 52 and the display processor 13. The display processor 13 provides signals to present on the display 12. The control interface 52 may include an I2C, a UART, and/or a GPIO interface. There may also be additional interfaces 56, 58, and 60 that may be in communication with the system bus 46. These additional interfaces 56, 58 and/or 60 may include USB, a serial peripheral interface, a wireless Wi-Fi interface, a wireless Bluetooth interface, camera interface or other input/output device interfaces, such as a mouse or keyboard. In addition to video, there may also be an audio post processor 62. Memory for connecting with these various processors and interfaces may be in the form of a dynamic random access memory 64 as in communication with the system bus 46. By so doing, the devices previously described have access to the memory 64 via the bus 46.
The main module 24 may also include other more traditional television components as well. For example, main module 24 may include a tuner 66 for receiving radio frequencies from an incoming antenna. The main module 24 may also include an analog TV demodulator 66 and/or a digital TV demodulator 68. The analog TV demodulator 66 may be communication with the analog video decoder 48 or the memory 64, while the digital TV demodulator 68 may be in communication with the memory 64. In addition, the main module 24 may have an audio/video input 70 as well as a HDMI receiver 72.
Several of the interfaces of the main module 24 may also be placed in communication with the computing modules 26 and 28. For example, the HDMI receiver 72, digital TV demodulator 68 and/or analog TV demodulator 66, processor 40, Ethernet interface 50, control interface 52, may all or in some part be placed in communication with the computing module 26 and/or 28.
Referring to
Power is provided to the computing module 26 from a power input 94 that receives power from the main module 24. The control interface 90 may include an I2C, UART, and/or GPIO interface. The transport stream demultiplexer 86, control interface 90, and HDMI transmitter 92 may all be in direct connection with the main module 24 via the port 32. The central processor 74 and/or graphics processor 76 of the computing module 26 may offer assistance to displaying images and providing video to the user of the main module 24.
For example, the main module 24 may be responsible for analog video receiving and decoding, digital video receiving and demodulation, ultra high definition image processing, which may include noise reduction, super resolution scaling, sharpening, dynamic range enhancement, color and skin tone adjustment, deinterlacing, microdimming and backlight control, among others. In addition, the main module 24 may be responsible for high definition multimedia interface reception, universal serial bus interfacing, as well as wireless interfacing such as Wi-Fi or Bluetooth. Further, the main module 24 may also be responsible for Ethernet in providing a network connection to computing module 26.
The computing module 26 may, for example, be responsible for ultrahigh definition digital video recording, transport stream demultiplexing for digital television decoding, digital multimedia decoding, providing a high quality graphical user interface of the user of the system 10, and allow for the downloading and execution of third party applications such as video streaming or gaming.
The interfacing between the ports 32 and 36 and ports 34 and 38, best shown in
In this embodiment, pins 53 and 54 provide power to the computing module 26 from the main module 24. Pins 2-18 transmit video and audio signals from the computing module 26 to the main module 24. Pins 26-33 provide an Ethernet link that forms a local area network for the whole system of the main module 24 and the computing module 26. Internet data is passed through this link and is also used to share peripheral devices between the main module 24 and the computing module 26. Pins 41-51 provide a transport stream link from the main module 24 to the computing module 26 in the case of a digital television signal receiving and decoding. Pin 22 is utilized to identify the computing modules, up to two computing modules if only one pin is used and up to four computing modules if there are two pins utilized. Additional computing modules can be identified if additional pins are utilized on the interface. Pins 20, 21, 39, 56, and 57 transmit handshaking and/or control information between the main module 24 and a computing module 26.
Of course, it should be understood that the arrangement and the number of pins can vary according to product requirement. Furthermore, grounding pins are used to prevent interference between signals. It should further be understood that the type of connector utilized by the interface can vary as required by application.
Referring to
A local area network is formed in the main module 24 and the computing modules 26 and 28 through an Ethernet hub with routing capability. The routing hub can be realized by central processor software or by a hardware accelerator. In this case, the computing modules 26 and 28 do not have to have network access that is independent of the main module 24. The local area network not only allows network connection for both the main module 24 and the computing modules 26 and 28, but also allows device sharing as will be described later in this application. Of course, it should be understood, that the computing modules 26 and/or 28 may also be configured with a Wi-Fi or Ethernet interface allowing the computing modules 26 and/or 28 to communicate directly with the Internet instead of interfacing with the main module 24. In this configuration, Internet access to the main module 24 could be provided by interfacing with the computing modules 26 and/or 28, if they are configured to be directly connected to the Internet.
Referring to
Referring to
There are some application scenarios where another device, such as a smart phone 118, is connected to the same access point 116 as the main module 24 and desires to discover the computing modules 26 and/or 28. This may arise in the case of multiscreen applications that will be later described in this specification.
This function can be realized by adding a block 120 for IP address distribution. In this case, the main module 24 is assigned an IP address by the access point 116. Another device, such as a smart phone 118 is also connected to the access point 116. The IP address distribution block 120 will produce virtual IP addresses for the computing modules 26 and/or 28 so that the computing modules 26 and/or 28 would appear as if they are in the same network as both the main module 24 and the smart phone 118, instead of just being a subnetwork of the main module 24. The IP address distribution block 120 can be a hardware accelerator or software solution running on any one of the processors of the main module 24.
Referring to
One methodology for device sharing can be implemented by first defining a private protocol. In this case, the main module 24 interprets data from the devices 122 and packages the data with a header containing the main module interpreted information, such as device type, data type, and length. The package data is sent to one or all of the computing modules 26 and/or 28 over the Ethernet. The computing modules 26 and 28 are configured to understand the packaged data format. One possible way of implementing this is to add a virtual device driver to the kennel of the computing modules 26 and 28. The advantage of this private protocol is that performance is good since device data is may only be interpreted once at the main module 24.
Another methodology for device sharing utilizes a standard protocol. In this situation, a USB device is interpreted by the main module 24 and is packaged as USB data and sent to one of the computing modules 26 or 28 over the Ethernet connection between the main module 24 and the computing modules 26 or 28 in the form of Internet protocol packets. In virtual software, a USB driver is running on the computing modules 26 or 28. The computing module 26 or 28 would assemble the Internet protocol packets and would see the data as USB data and would see the USB device as if it's plugged into the computing module 26 or 28 itself. This methodology has the advantage in that the computing module 26 or 28 would see the USB devices as if they are plugged into the computing module itself although they are actually plugged into the main module 24.
Referring to
Referring to
Referring to
This feature can be realized by adding a block 120 for IP address distribution. In this case, the computing module 26 is assigned an IP address by the access point 116. Another device, such as a smart phone 118 may be also connected to the access point 116. The IP address distribution block 120 will produce virtual IP addresses for the main module 24 so that the main module 24 would appear as if it is in the same network as both the computing module 26 and the smart phone 118, instead of just being a subnetwork of the computing module 26. The IP address distribution block 120 can be a hardware accelerator or software solution running on any one of the processors of the computing module 26.
Referring to
This feature can be realized by adding a block 120 for IP address distribution to each of the computing module 26 and 28. In this case, the computing modules 26 and 28 are assigned an IP address by the access point 116. Another device, such as a smart phone 118 may be also connected to the access point 116. The IP address distribution block 120 in either the computing module 26 or 28 will produce a virtual IP address for the main module 24 so that the main module 24 would appear as if it is in the same network as both the computing modules 26 and/or 28 and the smart phone 118, instead of just being a subnetwork of the computing modules 26 and/or 28. The IP address distribution block 120 can be a hardware accelerator or software solution running on any one of the processors of the computing modules 26 and/or 28.
Referring to
Like before, one way for device sharing can be implemented by first defining a private protocol. In this case, the main module 24 interprets data from the devices 122 and packages the data with a header containing the main module interpreted information, such as device type, data type, and length. The package data is sent to one or all of the computing modules 26 and/or 28 over the Ethernet. The computing modules 26 and 28 are configured to understand the packaged data format. One possible way of implementing this is to add a virtual device driver to the kennel of the computing modules 26 and 28. The advantage of this private protocol is that performance is good since device data is only interpreted once at the main module 24.
Like described above, another methodology for device sharing utilizes a standard protocol. In this situation, a USB device is interpreted by the main module 24 and is packaged as USB data and sent to one of the computing modules 26 or 28 over the Ethernet connection between the main module 24 and the computing modules 26 or 28 in the form of Internet protocol packets. In virtual software, a USB driver is running on the computing modules 26 or 28. The computing module 26 or 28 would assemble the Internet protocol packets and would see the data as USB data and would see the USB device as if it's plugged into the computing module 26 or 28 itself. This methodology has the advantage in that the computing module 26 or 28 would see the USB devices as if they are plugged into the computing module itself although they are actually plugged into the main module 24.
The output 134 of the demodulation is the transport stream and is sent to the computing module through the connection between the main module 24 and the computing module 26. If there are multiple computing modules on the system, the main module 24 can select the computing module which was selected when digital television was watched last time or any of the computing modules.
The transport stream demultiplexing block 86 in the computing module processes the transport stream and separates it into the elementary audio and video bit streams. The video stream 136 is sent to the digital video decoder 78 of the computing module for video decoding. The audio stream 138 is sent to the digital audio decoder 80 of the computing module for audio decoding. The decoded video and audio signals 140 and 142 are sent back to the main module through a high definition multimedia interface 72. The video post processor 44 receives the video signal and performs image enhancement processing and passes the result to the display block for video output to the display panel. This output can be digital such as V-by-one and LVDS or can be analog such as YPbPr. The audio post processor 62 receives the audio signal and does post processing and prepares an audio output. The audio output can be digital such as I2S or SPDIF or can be analog, such as a line out signal. Interactions between the user and the system is through a Bluetooth or infrared remote control that interacts with appropriate receiver 144. The main module CPU 40 will pass the command received by the receiver 144 and take corresponding action such as bringing up an on screen display or changing the channel.
The processor 74 of the computing module processes the Internet data and derives the video and audio streams. The video stream 136 is sent to the digital video decoder 78 for video decoding, while the audio stream 138 is sent to the digital audio processor 80 for audio decoding.
The decoded video and audio signals 140 and 142 are sent back to the main module through a high definition multimedia interface 72. The video post processing 44 receives the video signal and may perform image enhancement processing and passes the result to the display processor 13 for video output. Like before, the output can be digital such as V-by-one and LVDS or can be analog such as YPbPr. The audio post processor 62 receives the audio signal and performs post processing and prepares the audio output. This audio output can be digital or can be analog.
Similarly, interactions between the user and the system is through the receiver 144 via a remote control that may be infrared remote or Bluetooth remote. The main module processor 40 will send the command received by the receiver 144 to the computing module through the Ethernet link between the main module and the computing module. In some cases, voice data may be present in some interactions scenarios. The computing module processor 74 will take the corresponding actions based on the input received.
Referring to
Referring to
The processor 74 the computing module processes the Internet data and would usually engage the graphics processor 76 to mix Internet data with graphic data generated by a gaming application. The audio signal from the gaming application can be sent to the digital audio decoder 80 for sound effect processes sing. The graphic picture and audio signals are sent back to the main module through the high definition multimedia interfaces 92 and 72. The video post processing block 44 receives the video signal and may perform image enhancement processing and passes the result to the display processor 13 for video output. Like before, the video output can be done via V-by-one and LVDS or can be analog such as YPbPr.
The audio post processor 62 receives the audio signal and may perform post processing and prepares audio output. The audio output can be digital such as I2S or SPDIF or can be analog such as a line out signal.
Interactions between the user and the system is through either a Bluetooth or infrared remote control or a Bluetooth game controller in a modern system, whose signal is received by the Bluetooth or infrared receiver 144 on the main module. The processor 40 of the main module will send a command to the computing module through the Ethernet link between the main module and the computing module. Also, it should be understood that voice data may be present in some interactive scenarios. The computing module processor 74 will take corresponding actions to control the game based on the voice data received.
Referring to
Referring to
Referring to
The computing module processor 74 may process the bit stream and derive the video and audio streams. The video stream is sent to the digital video decoder 78 for video decoding and the audio stream is sent to the digital audio processor 80 for audio decoding. The decoded video and audio signals are sent back to the main module through the HDMI transmitter 92. The video post processing block 44 receives the video signal and does image enhancement processing and passes the results to display processor 13 for video output. The audio post processor 62 receives the audio signals and may perform post processing and prepare for audio output. Referring to
The main module 24 requests the desired bit stream from the URL and routes the bit stream to the intended application in the intended computing module 26 or 28. Alternatively, when the intended computing module 26 or 28 is made with a virtual IP address as described previously, the smart phone or tablet 152 can send the URL of the intended content to the computing module 26 or 28 through the main module 24. Thus, the computing module 26 or 28 requests the desired video bit stream from the URL and the bit stream is fetched to the computing module via the main module. Routing is with the help of the processor 40 of the main module. Some hardware accelerator can be included in the main module 24 to assist the data routing if performance is a concern. The data path between the main module 24 and the computing module 26 or 28 may be the Ethernet link between the two.
The processor 74 of the computing module processes the bit stream and derives the video and audio streams. The video stream is sent to the video decoder 78 for video decoding, while the audio stream is sent to the digital audio processor 80 for audio decoding.
The decoded video and audio signals are sent back to the main module 24 through the HMDI interfaces 92 and 72. The video post processor 44 receives the video signal and performs image enhancement and processing and passes the result to the display processor 13 for video output. The audio post processor 62 receives the audio signal and does post processing and prepares an audio output. Video and audio may be displayed by the main module display 12 while the phone or tablet 152 performs other tasks, such as interactions.
Referring to
Referring to
The audio signal from the game application can be sent to the digital audio decoder 80 for sound effect processing. The graphic picture and audio signals are sent back to the main module through the HDMI transmitters and receivers 72 and 92. The video post processor 44 receives the video signal and may perform image enhancement processing and passes the result to the display processor 13 for video output. The audio post processor 62 receives the audio signal and may perform post processing as it prepares an audio output.
Interactions between the user and the system may be through a Bluetooth or infrared remote control interacting with a receiver 144. For example, the game controller may be a Bluetooth controller whose signal is received by the receiver 144 on the main module. The processor 40 of the main module will send the command to the computing module through the Internet link between the main module and the computing module. As before, voice data may be present in some interactive scenarios, wherein the processor 74 of the main module will take corresponding actions based on the received data.
Referring to
The computing module processor 74 may process the bit stream and derive the video and audio streams. The video stream is sent to the digital video decoder 78 for video decoding and the audio stream is sent to the digital audio processor 80 for audio decoding. The decoded video and audio signals are sent back to the main module through the HDMI transmitter 92. The video post processing block 44 receives the video signal and does image enhancement processing and passes the results to display processor 13 for video output. The audio post processor 62 receives the audio signals and may perform post processing and prepare for audio output. Referring to
The computing module 26 requests the desired bit stream from the URL and routes the bit stream to the processor 74. The processor 74 of the computing module processes the bit stream and derives the video and audio streams. The video stream is sent to the video decoder 78 for video decoding, while the audio stream is sent to the digital audio processor 80 for audio decoding.
The decoded video and audio signals are sent back to the main module 24 through the HMDI interfaces 92 and 72. The video post processor 44 receives the video signal and performs image enhancement and processing and passes the result to the display processor 13 for video output. The audio post processor 62 receives the audio signal and does post processing and prepares an audio output. Video and audio may be displayed by the main module display 12 while the phone or tablet 152 performs other tasks, such as interactions.
Referring back to
Upon both the main module 24 and the computing modules 26 and 28 finish booting, the system 10 will go to a television channel or streaming service application where the user last left when the system 10 was powered off. For a first time boot, the system 10 may default to a certain television channel or a certain user interface.
When there are two or more computing modules 26 and 28, one of the computing modules, which may be the computing module whose application is presented to the user interface upon booting up, or all the computing modules can be in the power on state. It is also possible that some computing modules, such as those without a user interface presence, can be chosen to be in standby or sleep or even power off state to save power.
When powering off the system, the computing modules 26 and 28 may be powered off first, with each computing module 26 or 28 storing in its own state. The main module 24 may then be ready to be powered off and would also store its own state, including information of which computing module 26 or 28 was active. In the process of powering off, the display 12 may be shut off while the powering off process is continuing in the background.
Referring to
Referring to
In the embodiment shown in
The backlight controller 240 is in communication with the display panel 216 as well. The backlight controller 240 is configured to control the backlighting on the display panel 216. Another cord 231 may be connected to a port 227 of the television module subsystem 218 and a port 229 of the display subsystem 212. This allows for the backlight controller to control the backlights of the display panel 216.
The power supply 238 may be configured to provide power to the main board 222 of the television module subsystem 218 and provide power to the display subsystem 212 as well via cord or cords 232 and 234.
Speakers may be located in the housing 220 of the television subsystem module 218. The speakers 242 function to provide audio related to the images displayed on the display panel 216.
Referring to
As a person skilled in the art will readily appreciate, the above description is meant as an illustration of implementation of the principles of this invention. This description is not intended to limit the scope or application of this invention in that the invention is susceptible to modification, variation and change, without departing from the spirit of this invention, as defined in the following claims.
This application claims priority to U.S. Provisional Patent Application 62/125,871 filed on Feb. 2, 2015 and U.S. Provisional Patent Application 62/116,831 filed on Feb. 16, 2015, both of which are hereby incorporated by reference in their entirety.
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