MXPA04009699A - Method and apparatus for displaying graphics on an auxiliary display device using low level graphics drivers. - Google Patents

Method and apparatus for displaying graphics on an auxiliary display device using low level graphics drivers.

Info

Publication number
MXPA04009699A
MXPA04009699A MXPA04009699A MXPA04009699A MXPA04009699A MX PA04009699 A MXPA04009699 A MX PA04009699A MX PA04009699 A MXPA04009699 A MX PA04009699A MX PA04009699 A MXPA04009699 A MX PA04009699A MX PA04009699 A MXPA04009699 A MX PA04009699A
Authority
MX
Mexico
Prior art keywords
graphics
screen
operator
auxiliary display
invocations
Prior art date
Application number
MXPA04009699A
Other languages
Spanish (es)
Inventor
P Goffin Ii Glen
Original Assignee
Gen Instrument Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gen Instrument Corp filed Critical Gen Instrument Corp
Publication of MXPA04009699A publication Critical patent/MXPA04009699A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
    • H04N21/41265—The peripheral being portable, e.g. PDAs or mobile phones having a remote control device for bidirectional communication between the remote control device and client device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
    • H04N21/43637—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4431—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB characterized by the use of Application Program Interface [API] libraries
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8146—Monomedia components thereof involving graphical data, e.g. 3D object, 2D graphics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only

Abstract

A method and system for processing and displaying graphics in a communications system (e.g., CATV system) (200). The system (200) includes an auxiliary display device (210) and a set-top box (STB) (205). The STB (205) transmits graphical data to the auxiliary display device (210) over a wireless communications medium (245). The graphical data includes abstracted graphic driver calls. The driver calls are processed in the auxiliary display device (210) using graphic drivers residing in the auxiliary display device (210). Graphics are displayed on a display (235) in the auxiliary display device (210), based on the processed driver calls. User inputs are transmitted from the auxiliary display device (210) to the STB (205) over the wireless communications medium (245). The user inputs are responses to selections presented by the graphics on the display (235) of the auxiliary display device (210).

Description

METHOD AND DEVICE TO DISPLAY ON SCREEN GRAPHICS IN AN AUXILIARY APPARATUS USING LOW LEVEL GRAPHICS UNITS.
Field of the Invention The present invention generally refers to the transmission of interactive graphics to see and interact, applications that operate in a remote apparatus processor.
Antecedents of the Invention A new era is emerging in the experience of watching television, in which the data of complementary services of video are available for the viewer using a second screen in an apparatus of auxiliary screen. An example of the auxiliary display device is a web attenuator which is a relatively small remote wireless device. Figure 1 shows a conventional two-screen digital cable television system 100. The system 100 includes an auxiliary display apparatus 105 which communicates with a digital decoder (STB) 110 (also referred to as a "local device"). ") using a wireless connection. The wireless connection uses an external port 115 on the STB 110, such as a Universal Serial Bus (USB), Ethernet, or an IEEE 1394 port equipped with an access point 120 that communicates with the auxiliary display apparatus 105 for a wireless radio frequency (RF) link 125. In this scenario, access point 120 is a device designed for a specific interface (eg, USB) and is used to support wireless connectivity. The auxiliary display apparatus 105 can also be connected directly to a high-speed cable modem, a digital subscriber's modem (DSL) or any other high-speed Internet connection device to access the Internet 135. It can be having access to the video programming of the television 140 via the STB 110. Typical wireless connection protocols that may be used for the television system 100 include, but are not limited to HomeRF® and IEEE 802.11. A more traditional wired connection simply includes a cable or wire between the STB 110 and the auxiliary display apparatus 105, again using a USB, Ethernet, or IEEE 1394 port. The STB 110 is also connected to a 130 television. The television system Two-screen digital cable 100 allows many enhanced capabilities over a one-screen system. For example, a user can view the Internet data on the screen of the auxiliary display apparatus 105, while viewing an uninterrupted video on the television 130. In another example, the STB applications that are generally seen on the television screen , they are viewed 'on the screen of the auxiliary screen apparatus 105, leaving the TV 130 available to watch video programs. In a CATV system, an electronic program guide (EPG) is a specific example of an application that can be interacted through an application operating in a second display apparatus, such as the auxiliary display apparatus 105. A EPG by the viewer to determine the programs that are available to watch on the television, at which time the programs will be broadcast and through which channels. The supplementary information of the most sophisticated EPG screens used by the viewer to determine if the program is suitable for the children, the actors that are in the program, the duration of the program and what the program is about. Normally in an EPG, a portion of individual windows is assigned for each program displayed on the screen. Viewers of the CATV programs use a GUI to navigate in an EPG and select the program windows in the EPG that are of particular interest. It is desirable to define a distributed process for the CATV STB application to send abstract graphics operation invocations to a low-cost auxiliary display apparatus, by which the graphics are presented, to facilitate remote control feedback of the auxiliary display apparatus to the STB. Unlike the processes embodied in more complex personal computers, the transmission of abstract graphic operator invocations frees the STB from the burden of supporting application data traffic, and minimizes the memory processing requirements of the auxiliary display apparatus.
SUMMARY OF THE INVENTION The present invention makes it possible to send graphics information to an auxiliary display device for display on the screen in a communication system that includes an auxiliary display device and a decoder (STB). The STB transmits the graphic data to the auxiliary screen. The graphic data includes the operation invocations of abstract graphics. The operation invocations are processed in the auxiliary display apparatus using the graphics units residing in the auxiliary display apparatus. The graphics are displayed on a screen of the auxiliary display device, based on the operator invocations processed. The user inputs can be transmitted from the auxiliary display device to the STB. The user inputs are responses to the selections presented by the graphics on the screen of the auxiliary display device. A wireless local area network (WLAN) protocol, and / or infrared transmission can be used to transmit the user's inputs. Abstract graphics operator invocations can be packed into a wireless local area network (WLAN) protocol. Invocations of the abstract graphics operator may be invocations of the low-level graphics operator. The graphics displayed on the screen may include a TV program controller of an electronic program guide (EPG). The communication system can be a cable system (CATV). The STB may include a local graphics application that operates at least one interface layer of the application program (API), at least one layer of the operator, and at least one layer of the hardware including a processor. The auxiliary display apparatus may include a remote graphics application that operates at least one application program interface layer (API), at least one layer of the operator, and at least one layer of the hardware including a processor.
BRIEF DESCRIPTION OF THE DRAWINGS The following detailed description of the preferred embodiments of the present invention will be better understood when read in conjunction with the accompanying drawings. For purposes of illustration of the present invention, modalities which are currently preferred are shown in the drawings. However, the present invention is not limited to the precise adaptations and instrumentation shown. In the figures: Figure 1 shows a conventional two-screen digital cable television system; Figure 2 shows a communication system operating in accordance with the present invention; Figure 3 shows a simplified representation of a two-screen API architecture used in accordance with the present invention; Figure 4 shows a simplified representation of a remote control API architecture used in accordance with the present invention; and Figure 5 is a high-level functional graph that includes the steps implemented in accordance with the present invention.
Detailed Description of the Invention The graphic information is transmitted from the STB to an auxiliary screen device. The graphic information does not include representations of pixels, which would require high bandwidth and fast processing. Neither the graphical information includes invocations of the inferíase of the program of application of high level (API). In accordance with the present invention, the graphic information includes operators of invocation of abstract graphics, such as operators that instruct a screen to construct an image (for example, draw a square, a red color, a large size in the X coordinates). , AND Z) . Abstract graphics operator invocations are low-level graphics operators and are packaged with a wireless local area network (WLAN) protocol, such as 802.11b. Unlike the high level APIs, the low level API gives the user full access to the screen and to the input events. Although, this access requires that everything shown on the screen be programmed, the memory and processing requirements for the auxiliary display device are drastically reduced. In a screen environment, an STB usually hosts applications that have the ability to present graphics to the display device. The applications generally provide this capability through an abstraction layer. This layer of abstraction, commonly referred to as an interface layer of the application program (API), serves to allow the STB to finally have control over what is displayed on the screen while also providing applications with the capability to Communicate with low level operators and finally with the same hardware. A single-screen API architecture includes an application that has an API layer, an operator layer, and a hardware layer. The application would usually request control over graphics operators and hardware by invoking a set of APIs. The application first negotiates the control with a control function of the STB and then communicates with a graphics processor and the associated components through the operators. Fig. 2 shows a communication system (e.g., a CATV system) 200 that includes an STB 205 and an auxiliary display apparatus 210. The STB 205 (e.g., the local apparatus) includes a local graphics application 215 that operates in a first processor 220. The local graphics application 215 includes at least one API layer, at least one operator layer, and at least one layer of the hardware. The auxiliary display apparatus 210 (e.g., a wireless remote apparatus and a second display apparatus) includes a remote graphics application 225 operating in a second processor 230 that communicates with a display 235. The remote graphics application 225 also it includes at least one layer of API, at least one layer of the operator and at least one layer of the hardware. The STB 205 communicates with a television 240 (for example, a first screen device). In a two-screen scenario in accordance with the present invention, the local graphics application 215 communicates with the remote graphics application 225. The STB 205 communicates the invocations of the abstract graphics operator with the auxiliary screen apparatus 210 by a means of wireless communications 245 and processes the remote control commands received from the auxiliary display apparatus 210. The abstract graphic operator invocations may be invocations of the low-level graphics operator. Figure 3 shows a two-screen API architecture that supports the transmission of graphical invocations. The STB 205 transmits the graphic data including the invocations of the abstract graphics operator by the wireless communication means 245 to the auxiliary display apparatus 210. The operator invocations are passed to an API layer in the remote graphics application 225 of the apparatus of auxiliary display 210. The graphics are displayed on the display 235 of the auxiliary display apparatus 210 according to the operator invocations received from the STB 205. The graphics displayed on the display 235 may include a program controller of the television of a program guide. electronic (EPG). Figure 4 shows a two-screen API architecture that supports the transmission of remote control commands. The auxiliary display apparatus 210 transmits the remote control commands based on the user inputs to the STB 205 by the wireless communication means 245. The remote control commands are passed to an API layer in the local graphics application 215 of the STB 205. When they are displayed on the screen 235 of the auxiliary screen apparatus 210, the remote graphics application 225 can accept user inputs (for example, by means of a contact screen or a keyboard) in response to the presented graphics. The remote graphics application 225 communicates the user inputs to the local graphics application 215 via the wireless communication means 245 and the user inputs are processed by the STB 205. A wireless local area network (WLAN) protocol can be used. ), and / or an infrared transmission to transmit the user inputs to the STB 205. Abstract graphics operator invocations may be based on graphics APIs based on open or proprietary standard. The graphics APIs are encapsulated in a remote communications message, so that the auxiliary display apparatus 210 can process the commands with its own operators and integrated packages specific to the hardware program. Invocations of the abstract graphics operator are suitable to be implemented on the screen and interactive screen applications, such as electronic or interactive program guide, web search, email, or the like. Some "open standard" graphics APIs are generally used throughout the computer industry. Some examples include: (1) OpenGL, for example: glVertex3f (0. Of, l.Of, O.Of); // Draw the upper part of a triangle, glVertex3f (-1. Of, -l.Of, O.Of); // Draw the left bottom of a triangle, and glVertex3f (l.Of, -l.Of, O.Of); // Draw the right bottom of a triangle; (2) Java Abstract Windows Toolbox Graphics APIs, for example: draw Rect (int x, int y, int width, int height) // Draw a rectangle; (3) DirectX; and (4) GDI. These and other proprietary and open graph APIs can be used to implement the present invention. Instead of being processed in the auxiliary display apparatus 210, abstract graphics operator invocations are packed by the STB 205 into at least one communications packet, such as one that uses the WLAN protocol, which is sent to the apparatus. of auxiliary screen 210. In turn, auxiliary screen apparatus 210 receives and "unrolls" the communications packet and then processes the invocations of the abstract graphics operator with its own operators and hardware. Figure 5 shows the steps implemented by a method operating in accordance with the present invention. In step 505, the STB 205 transmits graphic data to the auxiliary display apparatus 210 by the wireless communication means 245. The graphic data includes abstract graphic invocations. In step 510, the operator invocations are processed in the auxiliary display apparatus 210 using the graphic operators residing in the remote graphics application 225. In step 515, the graphics are displayed on the display 235 of the auxiliary display apparatus. 210, based on the invocations of the process operator. In step 520, the user inputs are transmitted from the auxiliary display apparatus 210 to the STB 205 via the wireless communication means 245. The user inputs are responses to the selections presented by the graphics of the display 235 of the auxiliary display apparatus. 210. The present invention can be implemented with any combination of hardware and software. If implemented with a computer-implemented apparatus, the present invention is implemented using means to perform all the steps and functions described above. The present invention can be included in a manufacturing product (e.g., one or more computer program products) having, for example, means that can be used by the computer. The means have been incorporated in the present description, for example, the computer readable program code means for providing and facilitating the mechanisms of the present invention. The manufacturing product can be included as part of a computer system or sold separately. Those skilled in the art will appreciate that changes could be made to the embodiments described herein without departing from the broad inventive concept thereof. Therefore, it should be understood that the present invention is not limited to the particular embodiments described herein, but is intended to cover the modifications that are within the spirit and scope of the present invention, as defined by the appended claims.

Claims (17)

  1. NOVELTY OF THE INVENTION Having described the present invention, it is considered as a novelty and, therefore, the content of the following is claimed as property: CLAIMS 1. A method for processing and displaying on-screen graphics in a communication system, the system including an auxiliary display apparatus and a decoder (STB), the method comprising: (a) transmitting the STB of graphic data to the apparatus of auxiliary screen, including graphic data invocations of the operator of abstract graphics; (b) processing the operator invocations in the auxiliary display apparatus using the graphics operators residing in an auxiliary display apparatus; and (c) display on the screen the graphics on the auxiliary screen apparatus, based on the operator invocations processed.
  2. 2. The method according to claim 1, further comprising: (d) transmitting user inputs from the auxiliary display apparatus to the STB, characterized in that the user inputs are responses or selections presented by the graphics on the user's screen. auxiliary screen device.
  3. The method according to claim 2, characterized in that the auxiliary display apparatus uses a wireless local area network (LAN) protocol to transmit the user's inputs.
  4. 4. The method according to claim 2, characterized in that the auxiliary display apparatus uses infrared transmissions to transmit the user inputs.
  5. The method according to claim 1, characterized in that step (a) further includes the use of a wireless local area network (WLAN) protocol to pack the invocations of the abstract graphics operator.
  6. 6. The method according to claim 1, characterized in that the invocations of the operator of abstract graphics are invocations of the graphics operator of low or level.
  7. The method according to claim 1, characterized in that step (c) further comprises displaying a program controller of the television of an electronic program guide (EPG) on the screen.
  8. 8. A communications system to process and display graphics on screen, which comprises: (a) a decoder (STB); and (b) an auxiliary display apparatus having a screen, characterized in that: (i) the STB transmits graphic data to the auxiliary display apparatus, including the graphic data invocations of the abstract graphics operator; (ii) the auxiliary screen apparatus processes the invocations of the operator using the graphic operators residing in the auxiliary screen apparatus; and (iii) the graphs are displayed on the screen of the auxiliary screen apparatus, based on the invocations of the operator processed.
  9. 9. The system according to claim 8, characterized in that the auxiliary screen device transmits user inputs to the STB, the user inputs being responses to the selections presented by the graphics on the screen of the auxiliary screen apparatus.
  10. The system according to claim 9, characterized in that the auxiliary display apparatus uses a wireless local area network (WLAN) protocol to transmit the user's inputs.
  11. 11. The system according to claim 9, characterized in that the auxiliary display apparatus uses infrared transmissions to transmit the user inputs.
  12. The system according to claim 8, characterized in that the abstract graphics operator invocations are packaged using the wireless local area network (WLAN) protocol.
  13. The system according to claim 8, characterized in that the invocations of the abstract graphics operator are invocations of the graph operator of low level.
  14. 14. The system according to claim 8, characterized in that the graphics displayed on the screen include a program controller of the television and an electronic program guide (EPG).
  15. 15. The system according to claim 8, characterized in that the communication system is a cable television system (CATV).
  16. 16. The system according to claim 8, characterized in that the STB includes a local graphics application, which operates on top of: (i) at least one interface layer of the application program (API); (ii) at least one layer of the operator; and (iii) at least one layer of hardware including a processor. The system according to claim 8, characterized in that the auxiliary display apparatus includes a remote graphics application which operates on top of: (i) at least one interface layer of the application program (API); (ii) at least one layer of the operator; and (iii) at least one layer of hardware including a processor.
MXPA04009699A 2002-04-04 2003-03-14 Method and apparatus for displaying graphics on an auxiliary display device using low level graphics drivers. MXPA04009699A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11563302A 2002-04-04 2002-04-04
PCT/US2003/008124 WO2003085960A1 (en) 2002-04-04 2003-03-14 Method and apparatus for displaying graphics on an auxiliary display device using low level graphics drivers

Publications (1)

Publication Number Publication Date
MXPA04009699A true MXPA04009699A (en) 2004-12-13

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MXPA04009699A MXPA04009699A (en) 2002-04-04 2003-03-14 Method and apparatus for displaying graphics on an auxiliary display device using low level graphics drivers.

Country Status (8)

Country Link
EP (1) EP1491036A1 (en)
JP (1) JP2005522151A (en)
KR (1) KR20040111483A (en)
CN (1) CN1647500A (en)
AU (1) AU2003218214A1 (en)
CA (1) CA2481000A1 (en)
MX (1) MXPA04009699A (en)
WO (1) WO2003085960A1 (en)

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US7549154B2 (en) * 2004-11-23 2009-06-16 Microsoft Corporation Extensible architecture for auxiliary displays
US7634780B2 (en) * 2004-11-23 2009-12-15 Microsoft Corporation Method and system for exchanging data between computer systems and auxiliary displays
US8659505B2 (en) * 2005-08-31 2014-02-25 Mircosoft Corporation Auxiliary display device driver interface
CN104219560B (en) * 2007-09-18 2018-05-25 汤姆森许可贸易公司 The user interface of set-top box
US20090217170A1 (en) * 2008-02-27 2009-08-27 Audividi Inc. System and method for sharing display information
US9258402B2 (en) 2009-04-14 2016-02-09 Qualcomm Incorporated System and method for controlling mobile devices
WO2012094105A1 (en) * 2011-01-05 2012-07-12 Thomson Licensing Multi-screen interactions
GB2491634A (en) * 2011-06-10 2012-12-12 Ant Software Ltd Displaying Interactive Content from a Received Video Stream on a Second Screen

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AU2001230972A1 (en) * 2000-02-04 2001-08-14 Intel Corporation Displaying enhanced content information on a remote control unit

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KR20040111483A (en) 2004-12-31
CN1647500A (en) 2005-07-27
AU2003218214A1 (en) 2003-10-20
JP2005522151A (en) 2005-07-21
EP1491036A1 (en) 2004-12-29
CA2481000A1 (en) 2003-10-16
WO2003085960A1 (en) 2003-10-16

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