US20090219445A1 - Electronic Apparatus and Display Control Method - Google Patents

Electronic Apparatus and Display Control Method Download PDF

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Publication number
US20090219445A1
US20090219445A1 US12/363,612 US36361209A US2009219445A1 US 20090219445 A1 US20090219445 A1 US 20090219445A1 US 36361209 A US36361209 A US 36361209A US 2009219445 A1 US2009219445 A1 US 2009219445A1
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United States
Prior art keywords
external
apparatuses
input
module
communication module
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US12/363,612
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English (en)
Inventor
Masahiro KAMIDA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
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Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Assigned to KABUSHIKI KAISHA TOSHIBA reassignment KABUSHIKI KAISHA TOSHIBA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KAMIDA, MASAHIRO
Publication of US20090219445A1 publication Critical patent/US20090219445A1/en
Priority to US12/970,752 priority Critical patent/US8072543B2/en
Priority to US13/244,139 priority patent/US8665379B2/en
Priority to US13/849,390 priority patent/US8792056B2/en
Priority to US14/298,751 priority patent/US9007528B2/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers
    • 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
    • H04N21/4108—Peripherals receiving signals from specially adapted client devices characterised by an identification number or address, e.g. local network address
    • 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
    • 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 stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H04N21/43635—HDMI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/268—Signal distribution or switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/84—Television signal recording using optical recording
    • H04N5/85—Television signal recording using optical recording on discs or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division

Definitions

  • One embodiment of the present invention relates to a display control technique, and particularly to an electronic apparatus and display control method, which easily allows change of configuration when a device connected to the electronic apparatus is changed.
  • Jpn. Pat. Appln. KOKAI Publication No. 2008-22055 discloses a technique of checking the ON or OFF status of the power supply of an external apparatus connected to a television or the like via an HMDI cable and acquires control information including a logical address of the apparatus based on a status response command.
  • FIG. 1 is an exemplary schematic block diagram, which shows an example of a configuration of electronic apparatuses according to an embodiment of the present invention
  • FIG. 2 is an exemplary block diagram showing a connecting configuration of the electronic apparatuses of the embodiment
  • FIG. 3 is an exemplary schematic diagram showing physical addresses set in the respective electronic apparatuses
  • FIG. 4 is an exemplary block diagram showing a configuration of the electronic apparatus of the embodiment
  • FIG. 5 is an exemplary diagram showing a logical address allocation table and an address list according to the embodiment
  • FIG. 6 is an exemplary diagram showing a logical address allocation table and an address list according to the embodiment
  • FIG. 7 is an exemplary flowchart for explaining a display control method for the electronic apparatus according to the embodiment.
  • FIG. 8 is an exemplary schematic diagram showing an example of the display of the electronic apparatus according to the embodiment.
  • an electronic apparatus includes: a communication module which conducts communications with a plurality of external apparatuses; a storage module which stores an address list correlating a logical address and a physical address of each of the external apparatuses; a determination module which transmits a power-on signal to the external apparatus and thereafter determines a power state of the external apparatus; and an acquisition module which performs switching of input by the communication module after the determination module determines that the external apparatus has been powered on, and acquires apparatus information including the physical address of the external apparatus.
  • the electronic apparatus is implemented as, for example, a television 1 .
  • FIG. 1 is a schematic block diagram, which shows an example of a configuration of an HDMI (High-Definition Multimedia Interface) system including the television 1 as the electronic apparatus according to the embodiment of the present invention.
  • the HDMI system 100 includes: the television 1 , which is an electronic apparatus that receives broadcast waves, such as terrestrial digital broadcast waves, demodulates them and displays images, or receives and displays video signals from an external input; a set top box 3 as a tuner which receives and demodulates satellite broadcast waves such as BS (Broadcast Satellite) broadcast waves and CS (Communication Satellite) broadcast waves; a DVD player 4 which plays a medium such as a DVD (Digital Versatile Disc); and an HDD (Hard Disc Drive) recorder 5 configured to record a video signal from broadcast and an external input and output the recorded contents to an external device.
  • These devices are connected via an HDMI cable 6 as shown in FIG. 1 .
  • a remote controller 1 B is a dedicated remote controller to operate the television 1 . However, it is configured to transmit a
  • the television 1 checks the connection to the electronic apparatuses connected through the HDMI cable 6 when the television 1 is powered on, and also periodically checks the connection during normal operations.
  • the information on the connection check is transmitted and received through a CEC (Consumer Electronics Control) control line of the HDMI cable 6 .
  • CEC Consumer Electronics Control
  • FIG. 2 is a block diagram showing a configuration of the HDMI system according to the embodiment of the present invention.
  • the television 1 has inputs 1 to 3 of HDMI terminals.
  • the inputs 1 and 2 of the television 1 are respectively connected to outputs of the set top box 3 and the DVD player 4 through the HDMI cable 6 .
  • the input 3 of the television 1 is connected to an output of the HDD recorder 5 via the HDMI cable 6 .
  • the television 1 receives, for example, terrestrial digital broadcast waves via an antenna 1 A.
  • the set top box 3 receives, for example, BS and CS broadcast waves via an antenna 3 A.
  • the HDD recorder 5 receives, for example, terrestrial digital broadcast waves via an antenna 5 A.
  • the HDMI cable 6 has a CEC (Consumer Electronics Control) control line 6 a and an HDMI line 6 b.
  • the CEC control line 6 a serially connects CPUs 36 , 46 and 56 of the respective electronic apparatuses.
  • the HDMI line 6 b connects the electronic apparatuses to transmit video signals and audio signals.
  • FIG. 3 shows an example of physical address notations representing physical addresses set in the respective electronic apparatuses in the case where the electronic apparatuses are connected as shown in FIG. 2 .
  • the television 1 is represented as “0.0.0.0”
  • the HOD recorder 5 is represented as “1.0.0.0”
  • the set top box 3 is represented as “2.0.0.0”
  • the DVD player 4 is represented as “3.0.0.0”.
  • FIG. 4 is a block diagram showing a configuration of the television 1 of the embodiment.
  • the television 1 includes a tuner 10 which receives terrestrial digital television broadcast waves via the antenna 1 A and selects a channel; a signal processing module 11 which separates outputs from the tuner 10 in accordance with the type of data into video data, audio data and subtitle data and processes them; a video processing module 12 A which decodes the video data and subtitle data from the signal processing module 11 ; a display processing module 13 A which converts an output from the video processing module 12 A to a video signal for display; a display module 14 A which displays the output from the display processing module 13 A on an LCD (Liquid Crystal Display); an audio processing module 12 B which decodes audio data from the signal processing module 11 ; an audio output processing module 13 B which converts an output from the audio processing module 12 B to an audio signal and outputs the audio signal; a speaker 14 B which converts an output from the audio output processing module 13 B to a sound; an HDMI receiving module 15 which receives video data and audio data from an external apparatus through the HDMI line 6 b of the HDMI cable 6 ; a CPU (
  • the HDMI cable 6 is connected to an HDMI connector (not shown) and connected to the HDMI receiving module 15 and the CPU 16 via an interface of the HDMI.
  • FIGS. 5 and 6 are diagrams each showing a configuration of a logical address allocation table and an address list according to the embodiment of the present invention.
  • the logical address allocation table 18 A correlates a logical address 180 on the specification of the HDMI-CEC with a device number 181 and a device type 182 . There are sixteen numbers “0” to “15” for the logical address 180 .
  • the numbers “0” to “11” of the logical address 180 are correlated to the items of the device number 181 and the device type 182 as indicated in the logical address allocation table 18 A.
  • the numbers “12” and “13” of the logical address 180 have not been correlated to either the device number 181 or the device type 182 at the time of May 2007, and therefore cannot be used.
  • the number “14” of the logical address 180 is “Free Use”, and therefore can be correlated to any items in the device number 181 and the device type 182 .
  • the logical address number “14” can be used for that purpose.
  • the number “15” of the logical address 180 cannot be used solely by an apparatus. However, when a command is executed, the command is transmitted to all the apparatuses except for the apparatuses using the other logical addresses.
  • FIG. 6 shows the case in which the television 1 has confirmed the connection of the set top box 3 , the DVD player 4 and the HDD recorder 5 in the HDMI system 100 shown in FIG. 2 .
  • the CPU 16 when the user powers on the television 1 by operating the operation module 19 or the remote controller 1 B, the CPU 16 performs a startup process for the television 1 .
  • the startup process includes initializing the parts, reading the set data, etc.
  • the CPU 16 performs a connection check of the external apparatus connected through the HDMI cable 6 as well as the startup process.
  • the connection check is performed on the basis of the logical address allocation table 18 A by writing the physical addresses 183 and the device names 184 corresponding to the logical addresses 180 for the respective connected external apparatuses.
  • the CPU 16 transmits an apparatus power-on command to the connected external apparatuses using the command ⁇ Give Physical Address> based on the HDMI standard 12 (block S 101 ).
  • the following command is used as the apparatus power-on command.
  • the apparatus power-on command is preferably transmitted simultaneously to all external apparatuses connected through the HDMI cable 6 to reduce the process time.
  • the television 1 transmits a power state acquisition command to the external apparatuses to which the power-on command has been transmitted (block S 102 : an acquiring module).
  • the power state acquisition command is a command to check whether the external apparatus, to which the apparatus power-on command was transmitted, has been powered on or not. For example, the following command is used as the power state acquisition command.
  • the television 1 receives a power state notice command from the external apparatus to which the power state acquisition command was transmitted (block S 103 ).
  • a power state notice command For example, the following command is used as the power state notice command.
  • the television 1 determines whether each external apparatus is powered on or not based on the received power state notice command of the external apparatus (block S 104 ). If the television 1 determines that the external apparatus is powered on (YES in block S 104 ), for example, if it determines that the set top box 3 , the DVD player 4 and the HDD recorder 5 connected to HDMI 1 to HDMI 3 are powered on, the HDMI input of the television 1 is sequentially switched in the ascending order of the logical addresses, that is, from HDMI 1 to HDMI 3 (block S 105 to block S 107 ).
  • the system stands by in the input state for a predetermined period of time, for example, 2 to 3 seconds (the input state is maintained), so that video data can be output from the external apparatus to the television 1 .
  • some of the external apparatuses are brought to a state enabling a video output and thereby updated to correct physical addresses. Accordingly, in the process of switching the input from the television 1 to the external apparatuses connected through the HDMI cable 6 , first, the external apparatuses are powered on and then the CPU 16 of the television 1 switches the input of the HDMI so that the input from all external apparatuses connected to the HDMI cable can be displayed as images.
  • the system is brought to a state in which the external apparatuses can transmit various commands to the television 1 .
  • the simultaneous power-on as described above reduces the process time as compared to the case in which the apparatuses are separately powered on one by one. Further, since the power-on of the external apparatuses is checked one by one, the system is brought to a state in which the external apparatuses can reliably output image data to the television 1 .
  • the television 1 transmits to the switched external apparatuses a physical address inquiry command to acquire apparatus information including a physical address of each of the external apparatuses from the external apparatuses (block S 108 ). Then, the television 1 receives a physical address notice command from the external apparatuses to which the physical address inquiry command was transmitted (block S 109 ).
  • the physical address notice command received from the external apparatus includes apparatus information indicative of the type of the apparatus (device type) in addition to the physical address (e.g., 1.0.0.0).
  • the television 1 updates the physical address and the like in accordance with the received physical address notice command.
  • the physical address and apparatus information are displayed in the display module 14 A of the television 1 , for example, as a menu 200 (block S 110 ).
  • the menu 200 indicates the terminal number of the HDMI terminal corresponding to the physical address and the type of the apparatus (e.g., the tuner) associated with the terminal number. If necessary, the menu 200 may also indicate the device name 184 or the like (see FIG. 6 ).
  • the power state acquisition command is transmitted again after a predetermined period of time to the external apparatus which has been determined to be not powered on (block S 102 ).
  • the specification may be such that if the television 1 determines that the external apparatus is not powered on in block S 104 (NO in block S 104 ), the apparatus power-on command and the power state acquisition command may be transmitted again after a predetermined period of time to the external apparatus which has been determined to be not powered on.
  • the timing of updating the physical address varies depending on the apparatuses. However, the physical addresses of all apparatuses can be updated by switching the input of the HDMI.
  • the external apparatuses connected to the television 1 are kept powered on. Therefore, a command to power off is transmitted to the external apparatuses that have been powered on. As a result, the power of each external apparatus is changed to the state of that before the process of the above embodiment is executed. To execute the power-off process, it is necessary to check in advance the power state of each of the external apparatuses. Therefore, the television transmits the power state acquisition command to each external apparatus and received the power state notice command therefrom.
  • a module can be accomplished in software and hardware.
  • the configuration of the connection can automatically be updated.
  • the user can connect the apparatuses without taking the configuration into consideration in particular and the configuration of the connection can automatically be updated.
  • An object of the present invention is to provide an electronic apparatus and display control method, which can automatically update the connecting configuration, even when the connecting configuration has been changed.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Small-Scale Networks (AREA)
  • Computer And Data Communications (AREA)
US12/363,612 2008-02-29 2009-01-30 Electronic Apparatus and Display Control Method Abandoned US20090219445A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/970,752 US8072543B2 (en) 2008-02-29 2010-12-16 Electronic apparatus and display control method
US13/244,139 US8665379B2 (en) 2008-02-29 2011-09-23 Electronic apparatus and display control method
US13/849,390 US8792056B2 (en) 2008-02-29 2013-03-22 Electronic apparatus and display control method
US14/298,751 US9007528B2 (en) 2008-02-29 2014-06-06 Electronic apparatus and display control method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-050878 2008-02-29
JP2008050878A JP4469901B2 (ja) 2008-02-29 2008-02-29 電子機器および表示制御方法

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US12/970,752 Continuation US8072543B2 (en) 2008-02-29 2010-12-16 Electronic apparatus and display control method

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US20090219445A1 true US20090219445A1 (en) 2009-09-03

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Application Number Title Priority Date Filing Date
US12/363,612 Abandoned US20090219445A1 (en) 2008-02-29 2009-01-30 Electronic Apparatus and Display Control Method
US12/970,752 Active US8072543B2 (en) 2008-02-29 2010-12-16 Electronic apparatus and display control method
US13/244,139 Active 2029-06-01 US8665379B2 (en) 2008-02-29 2011-09-23 Electronic apparatus and display control method
US13/849,390 Active US8792056B2 (en) 2008-02-29 2013-03-22 Electronic apparatus and display control method
US14/298,751 Active US9007528B2 (en) 2008-02-29 2014-06-06 Electronic apparatus and display control method

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US12/970,752 Active US8072543B2 (en) 2008-02-29 2010-12-16 Electronic apparatus and display control method
US13/244,139 Active 2029-06-01 US8665379B2 (en) 2008-02-29 2011-09-23 Electronic apparatus and display control method
US13/849,390 Active US8792056B2 (en) 2008-02-29 2013-03-22 Electronic apparatus and display control method
US14/298,751 Active US9007528B2 (en) 2008-02-29 2014-06-06 Electronic apparatus and display control method

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US (5) US20090219445A1 (zh)
JP (1) JP4469901B2 (zh)
CN (1) CN101521765A (zh)

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US9007528B2 (en) 2008-02-29 2015-04-14 Kabushiki Kaisha Toshiba Electronic apparatus and display control method
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US20120099021A1 (en) 2012-04-26
US8665379B2 (en) 2014-03-04
CN101521765A (zh) 2009-09-02
US20110085087A1 (en) 2011-04-14
US8792056B2 (en) 2014-07-29
JP2009211163A (ja) 2009-09-17
US9007528B2 (en) 2015-04-14
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US20140285721A1 (en) 2014-09-25
US20130265491A1 (en) 2013-10-10

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