(19) United States
`(12) Patent Application Publication (10) Pub. No.: US 2007/0046833 A1
`(43) Pub. Date:
`Mar. 1, 2007
`Kitamura
`
`US 20070046833A1
`
`(54)
`
`(75)
`
`TELEVISION RECEIVER HAVING A
`PLURALITY OF STANDBY POWER MODES
`
`Inventor: Hideo Kitamura, Chiba-shi (JP)
`Correspondence Address:
`BRCH STEWART KOLASCH & BRCH
`PO BOX 747
`FALLS CHURCH, VA 22040-0747 (US)
`Assignee: Sharp Kabushiki Kaisha
`Appl. No.:
`11/482,169
`
`(73)
`(21)
`(22)
`(30)
`Aug. 24, 2005
`
`Filed:
`
`Jul. 7, 2006
`Foreign Application Priority Data
`
`(JP)...................................... 2005-2423.49
`
`Publication Classification
`
`(51) Int. Cl.
`(2006.01)
`H04N 5/63
`(52) U.S. Cl. .............................................................. 348/730
`(57)
`ABSTRACT
`A television receiver having a security module fixing part for
`descrambling digital broadcast comprises at least a standby
`power mode for Supplying power only to hardware. Such as
`a remote control receiver (full standby), a standby power
`mode for Supplying power also to a security module other
`than the hardware supplied with power in the full standby
`(partial standby), and a standby power mode for stopping
`Supply of power only to a monitor at minimum (false
`standby) and has a standby power mode determination part
`for controlling presentation of images and electronic pro
`gram guides to a user at startup.
`
`REMOTE CONTROL POWER
`SUPPLY OFF NPUT
`
`l
`
`S 2 O 1
`
`AUTOMATIC DISPLAY
`OF ELECTRONIC PROGRAM
`GUDE SET2
`
`Yes
`
`SECURY MODULE FIXED?
`
`
`
`
`
`
`
`S 3 O
`
`
`
`
`
`SECURITY MODULE
`RECRURED FOR
`WATCHING AND LISTENING
`TO CHANNEA NEXT STARTUP2
`
`Yes
`
`FULL STANDBY
`
`PARTIAL STANDBY
`
`FASE STANDBY
`
`VIZIO, Inc. Exhibit 1012
`VIZIO, Inc. v. Maxell, LTD, IPR2022-01459
`Page 1 of 7
`
`

`

`Patent Application Publication Mar. 1, 2007 Sheet 1 of 3
`
`US 2007/0046833 A1
`
`FG.1
`
`
`
`101
`
`MONITOR:
`108
`7
`
`:
`
`:
`:
`
`:
`
`ENCOOING
`PART
`
`SPEAKER
`
`102
`
`:
`:
`:
`
`103
`DESCRAMBLING MPEG
`D
`PART
`RT
`
`SECURITY
`MODULE
`
`VIZIO, Inc. Exhibit 1012
`VIZIO, Inc. v. Maxell, LTD, IPR2022-01459
`Page 2 of 7
`
`

`

`Patent Application Publication Mar. 1, 2007 Sheet 2 of 3
`
`US 2007/0046833 A1
`
`FG.2
`
`REMOTE CONTROL POWER
`SUPPLY OFF INPUT
`
`l
`
`S 2 O
`
`AUTOMATC DISPLAY
`OF ELECTRONIC PROGRAM
`GUIDE SET2
`
`Yes
`
`SECURITY MODULE FIXED?
`
`
`
`
`
`
`
`FUL STANDBY
`
`PARTIAL STAND BY
`
`FALSE STANDBY
`
`VIZIO, Inc. Exhibit 1012
`VIZIO, Inc. v. Maxell, LTD, IPR2022-01459
`Page 3 of 7
`
`

`

`Patent Application Publication Mar. 1, 2007 Sheet 3 of 3
`
`US 2007/0046833 A1
`
`FG.3
`REMOTE CONTROL POWER
`SUPPLY OFF NPUT
`
`l
`
`S 2 O 1
`
`AUTOMATIC DISPLAY
`OF ELECTRONIC PROGRAM
`GUIDE SET2
`
`Yes
`
`SECURITY MODULE FIXED?
`
`
`
`
`
`
`
`S 3 O
`
`
`
`
`
`SECURITY MODULE
`RECURED FOR
`WATCHING AND LISTENING
`TO CHANNEAT NEXT STARTUP2
`
`Yes
`
`FULL STANDBY
`
`PARTIAL STANDBY
`
`FALSE STANDBY
`
`VIZIO, Inc. Exhibit 1012
`VIZIO, Inc. v. Maxell, LTD, IPR2022-01459
`Page 4 of 7
`
`

`

`US 2007/0046833 A1
`
`Mar. 1, 2007
`
`TELEVISION RECEIVER HAVING A PLURALITY
`OF STANDBY POWER MODES
`0001. The present application is based on and claims
`priority of Japanese patent application No. 2005-242349
`filed on Aug. 24, 2005, the entire contents of which are
`hereby incorporated by reference.
`
`BACKGROUND OF THE INVENTION
`0002) 1. Field of the Invention
`0003. The present invention relates to a television
`receiver having a plurality of standby power modes.
`0004 2. Description of the Related Art
`0005. In the past, in order to reduce standby power, a
`television receiver has selected, according to the situation
`during a power Supply off period, a standby power mode for
`Supplying power only to minimum required hardware being
`required for receiving only remote control operations and
`the like from a user (hereinafter, full standby mode) and a
`standby power mode for stopping Supply of power only to a
`monitor (hereinafter, false standby mode).
`0006 Moreover, an I/F (interface) with a security card
`called a CableCARD module is required for a television
`receiver with a digital cable receiving function in North
`America in order to descramble cable TV programs. The
`receiver is required in the standards that it should maintain
`the communication with the CableCARD module so as to
`normally supply power to the CableCARD module even in
`the power supply off period and to acquire EMM (Entitle
`ment Management Message) and the like even when the
`power supply of the CableCARD module is turned off.
`Accordingly, in North America, there are also ones com
`prising a standby power mode for Supplying power also to
`hardware required for the communication with the Cable
`CARD module (hereinafter,
`partial standby mode)
`together with minimum required hardware for receiving
`only remote control operations and the like from the above
`mentioned user.
`0007 As for conventional techniques of a power supply
`controller and a power Supply control method of a video
`recording/reproducing device for receiving and recording/
`reproducing television broadcast, for example a power Sup
`ply control method, as described in Japanese Unexamined
`Patent Application Publication No. 2003-150282 for acquir
`ing present time when input by a user, for calculating the
`reservation time for power being turned on and the standby
`end time and storing them in a memory and for Supplying
`power only to a predetermined portion of the device till the
`reservation time for standby is known.
`0008 However, for example, when a television receiver
`is provided with an electronic program guide and a user sets
`to automatically display the electronic program guide at
`turning on of the power Supply, and when a channel to be
`displayed first at turning on of the power Supply requires a
`descrambling process by a CableCARD module, a startup
`from the above-mentioned full standby or the partial standby
`requires restarting in view of Software. Accordingly, it takes
`time till displaying a program guide and programs after
`startup for both the full standby and the partial standby, thus
`making the user to feel inconvenient even though standby
`power can be reduced.
`
`SUMMARY OF THE INVENTION
`0009. A television receiving set having a security module
`fixing part for descrambling digital broadcast comprises at
`least a standby power mode for Supplying power only to
`hardware, Such as a remote control receiving part (full
`standby), a standby power mode for Supplying power also to
`a security module other than the hardware to which power
`is Supplied in the full standby (partial standby), and has a
`standby power mode determination part for preventing the
`presentation of images and electronic program guides to a
`user at Startup from being too late.
`0010. The set also selects the false standby power mode
`when it is required to automatically display the above
`mentioned electronic program guide at the next startup in the
`standby power mode determination part.
`0011. The set does not automatically display the above
`mentioned electronic program guide at the next startup and
`it has the above-mentioned security module fixed thereon,
`and it selects the false electric power standby mode when the
`descrambling process is required for watching and listening
`to a channel to be presented to a user at the next startup in
`the above-mentioned security module while it selects the
`partial electric power standby mode when not required in the
`standby power mode determination part.
`0012 Since the standby power mode is determined so as
`to prevent the presentation of images and electronic program
`guides to a user at startup from being too late, a weak point
`of ease of use by the user being impaired for restraining
`standby power is eliminated, thus making the standby power
`and the ease of use by the user to be in a good balance.
`0013 When the automatic display of the electronic pro
`gram guide is enabled, to turn down to the false standby for
`permitting the electronic program guide to be immediately
`displayed as the power Supply being turned on means to pay
`attention to a will of the user desiring to quickly confirm the
`electronic program guide and the increase of ease of use
`Surpasses shortcomings of the standby power being too
`large.
`0014 When the automatic display of the electronic pro
`gram guide is disabled, since the false standby or the partial
`standby is adabtably selected based on whether or not the
`descrambling process is required for watching and listening
`to the channel to be presented to the user at the next startup
`in the security module, the standby power can be reduced to
`the minimum with prioritizing the ease of use so as to
`immediately present desired images to the user.
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`0015 FIG. 1 is a block diagram of a television receiver
`having a plurality of Standby power modes according to the
`present invention;
`0016 FIG. 2 is a flowchart illustrating standby power
`mode selection according to the present invention; and
`0017 FIG. 3 is a flowchart illustrating standby power
`mode selection according to the present invention.
`
`DESCRIPTION OF THE PREFERRED
`EMBODIMENTS
`0018. In the following, embodiments according to the
`present invention are described referring to the drawings.
`
`VIZIO, Inc. Exhibit 1012
`VIZIO, Inc. v. Maxell, LTD, IPR2022-01459
`Page 5 of 7
`
`

`

`US 2007/0046833 A1
`
`Mar. 1, 2007
`
`FIG. 1 shows a block diagram of a television
`0.019
`receiver according to the present invention.
`0020. A digital TV signal tuner part 102 has a VSB
`(Vestigital Side Band) demodulation part and a QAM
`(Quadrature Amplitude Modulation) demodulation part,
`receives a signal of either of ground wave digital broadcast
`or cable TV broadcast according to users tuning directions,
`and takes out a desired MPEG (Moving Picture Experts
`Group) transport stream.
`0021. A security module I/F part 109 controls input/
`output and the like of the MPEG transport stream into a
`security module 110. The security module 110 is a PC card
`used for a conditional access processing of the cable TV
`broadcast called a CableCARD module in North America.
`0022. When a digital program of the cable TV broadcast
`is selected and if the security module 110 is fixed, the MPEG
`transport stream is sent out to the security module 110 via
`the security module I/F part 109. When the security module
`110 is not inserted or ground wave digital broadcast is tuned
`in, the stream is sent out to a descrambling part 103 directly.
`0023 The security module 110 determines the watching
`and listening propriety of the tuned-in cable TV program
`according to the user's contract information in the EMM
`transmitted from a cable station, and if it can be
`descrambled, scrambling to the corresponding program is
`canceled for the input MPEG transport stream.
`0024. When a program needs a copy control, the security
`module 110 newly gives scrambling to the MPEG transport
`stream so that a raw MPEG transport stream should not be
`illegally robbed from the security module 110 to the
`descrambling part 103. After processing in Such a way, the
`MPEG transport stream is sent out to the descrambling part
`103 via the security module I/F 109.
`0.025 The descrambling part 103 cancels scrambling for
`the copy controls of the MPEG transport stream by the
`above-mentioned security module 110, and an MPEG
`decoding part 104 performs demultiplexing processes and
`AV decoding processes of MPEG.
`0026. An analog TV signal tuner part 105 demodulates
`ground wave analog broadcast programs or analogue broad
`cast programs of cable TV broadcast according to user's
`tuning directions.
`0027. An AV encoding part 106 performs AV encoding
`processes for outputting images and sounds in response to
`AV demodulation signals from the MPEG decoding part 104
`and the analog TV signal tuner part 105 and sends out the
`signals to a monitor 107 and a speaker 108, and the images
`and sounds come out with the monitor 107 and the speaker
`108.
`0028. A CPU 111 controls entirely using the programs
`and data stored in a memory 112.
`0029. A remote control light receiving part 113 receives
`remote control signals, and a sub-CPU 114 analyzes the
`remote control signals for controlling a power Supply circuit
`115 and for communication with a CPU 111.
`0030) A power supply circuit 115 supplies power/stops
`supply of power so that it may have the following three
`standby power modes at the time of power supply off.
`
`(a) Full standby: to Supply power only to the minimum
`required hardware, such as a remote control reception part
`and the like (to stop power supply to hardware enclosed with
`dotted lines 116).
`0031 (b) Partial standby: to supply power also to hard
`ware required for the communication with the security
`module 111 in addition to the minimum required hardware,
`Such as a remote control receiving part and the like (to stop
`power supply to hardware enclosed with dashed lines 117).
`(c) False standby: to stop power Supply only to a monitor
`and a speaker (to stop power Supply to hardware enclosed
`with chain lines 118).
`0032. An electronic program guide is provided to a
`receiver 101, and it has a function for automatically dis
`playing the electronic program guide at the time of power
`Supply on (hereinafter, automatic guide display function)
`and can set up whether or not the function is enabled with
`a C.
`0033 Selection of the standby power mode at the time of
`remote control power supply off follows the flowchart of
`FIG. 2. The false standby will be selected if the automatic
`guide display function is set to be effective at S201. It is
`because it can be said that inconvenient for the user would
`be enormous due to requiring considerable time till display
`ing the guide after starting up in the full standby or partial
`standby, and the false standby, which permits immediate
`displaying of the guide, would be more preferable even
`though the false standby requires largest standby power.
`0034). If the automatic guide display function is set to be
`disabled at S201, it will be determined whether or not a
`security card is equipped at S202. The full standby is chosen
`if the security card is not equipped. Since standby power
`would be smallest accordingly and a guide display and
`descrambling processes are not required, the images and
`Sounds can be immediately presented to the user, thus
`avoiding making the user to feel inconvenient.
`0035. The partial standby is selected if the security card
`is equipped at S202. Since it conforms to the constraint in
`the standards that power should be normally supplied to a
`security card even at the time of power Supply off and serves
`to reduce power consumption and it is prevented that the
`CPU power is taken to the automatic guide display function
`at the time of startup, Scrambling can be cancelled in little
`time even when a channel after startup is of a scrambled
`program of cable TV and the program can be presented to
`the user.
`0036) Selection of the standby power mode at the time of
`remote control power supply offmay follow the flowchart of
`FIG. 3. The same numerals are given to the same steps as in
`FIG 2.
`0037. When the security card is equipped at S202, it is
`determined whether or not a security module is required for
`watching and listening to the channel at the next startup at
`S301. Since ground wave digital broadcast and analogue
`broadcast of ground waves or cable TV can be watched and
`listened to without a security module, the partial standby is
`selected, while the false standby is selected since a security
`module is required for digital broadcast of cable TV.
`0038 Although standby power would be larger accord
`ingly, after startup, all the programs including scrambled
`
`VIZIO, Inc. Exhibit 1012
`VIZIO, Inc. v. Maxell, LTD, IPR2022-01459
`Page 6 of 7
`
`

`

`US 2007/0046833 A1
`
`Mar. 1, 2007
`
`digital broadcast of cable TV can be immediately displayed,
`thus eliminating inconvenient to the user.
`0.039
`Since programs without scrambling can be
`watched and listened to without a security module even
`though it is of digital broadcast of cable TV, it is also
`possible to lead to the partial standby by adding this con
`dition to S301.
`0040 Moreover, since as for hardware enclosed by 116
`shown in FIG. 1, for example a CPU 112, a descrambler part
`103, and an MPEG decoding part 104 may be assembled
`into one chip, it may vary with actual hardware configura
`tions.
`What is claimed is:
`1. A television receiving set for digital broadcast, com
`prising:
`a full standby power mode, a partial standby power mode,
`and a false standby power mode,
`wherein a standby power mode determination part deter
`mines the setting of next startup, selects the respective
`above-mentioned standby power modes, and Supplies
`power in the different standby power mode for standby.
`2. A television receiving set having a security module
`fixing part for descrambling digital broadcast, comprising:
`a full standby power mode for Supplying power only to
`minimum necessary hardware. Such as a remote control
`receiving part, a partial standby power mode for Sup
`plying power also to hardware required for the com
`munication with a security module fixed on the above
`mentioned security module fixing part in addition to the
`minimum necessary hardware, such as the above-men
`tioned remote control receiving part, and a false
`standby power mode for Suspending only the power
`Supply to a monitor at minimum,
`wherein a standby power mode determination part deter
`mines the setting of an automatic display function of an
`electronic program guide at startup, the necessity of
`descrambling process and the like, selects a specific
`standby power mode, and Supplies power in the differ
`ent standby power mode for standby.
`3. A television receiver according to claim 1, wherein it
`selects the above-mentioned false standby power mode
`
`when the function for automatically displaying the above
`mentioned electronic program guide at the next startup in the
`above-mentioned Standby power mode determination part.
`4. A television receiver according to claim 2, wherein it
`selects the above-mentioned false standby power mode
`when the function for automatically displaying the above
`mentioned electronic program guide at the next startup in the
`above-mentioned Standby power mode determination part.
`5. A television receiver according to claim 2, wherein it
`does not automatically display the above-mentioned elec
`tronic program guide at the next startup and it has the
`above-mentioned security module fixed thereon, and it
`selects the above-mentioned false electric power standby
`mode when the descrambling process is required for watch
`ing and listening to a channel to be presented to a user at the
`next startup in the above-mentioned security module while
`it selects the above-mentioned partial electric power standby
`mode when not required.
`6. A television receiver according to claim 3, wherein it
`does not automatically display the above-mentioned elec
`tronic program guide at the next startup and it has the
`above-mentioned security module fixed thereon, and it
`selects the above-mentioned false electric power standby
`mode when the descrambling process is required for watch
`ing and listening to a channel to be presented to a user at the
`next startup in the above-mentioned security module while
`it selects the above-mentioned partial electric power standby
`mode when not required.
`7. A television receiver according to claim 2, wherein it
`selects the above-mentioned false electronic standby power
`mode when the function for automatically displaying the
`above-mentioned electronic program guide at the next star
`tup, and wherein it does not automatically display the
`above-mentioned electronic program guide at the next star
`tup and it has the above-mentioned security module fixed
`thereon, and it selects the above-mentioned false electric
`power standby mode when the descrambling process is
`required for watching and listening to a channel to be
`presented to a user at the next startup in the above-men
`tioned security module while it selects the above-mentioned
`partial electric power standby mode when not required.
`
`VIZIO, Inc. Exhibit 1012
`VIZIO, Inc. v. Maxell, LTD, IPR2022-01459
`Page 7 of 7
`
`