# US 8,751,840 B2 · Computer providing motion picture mode and method of setting up system-mode while playing motion pictures > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,751,840 B2 - Document ID: US8751840B2 - Status: Granted - Kind: B2 - Application number: 12/249,670 - Filed: 2008-10-10 - Published: 2009-04-16 - Granted: 2014-06-10 - Earliest claimed: 2007-10-11 - Assignees: LG Electronics Inc. - Applicants: Jung-Hwan Lee - Inventors: Jung-Hwan Lee - Web page: https://patentgrep.com/patent/US8751840B2 ## CPC - G06F 1/3203: Power management, i.e. event-based initiation of a power-saving mode - G06F 1/3246: by software initiated power-off - G06F 1/3287: by switching off individual functional units in the computer system - Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract The present invention relates to a computer providing a motion picture mode including at least one storage unit configured to store system state information when the computer enters the motion picture mode and to store motion picture data, the storage unit including a random access memory (RAM) and a hard disk drive (HDD), a graphic processing unit configured to process image data and to display processed data on a screen, an audio outputting unit configured to process and output audio signals, and a control unit configured to control modules included in the computer and a system mode of the computer. The control unit is configured to determine whether conditions for entering the motion picture mode have been satisfied, and to change the system mode to the motion picture mode if the conditions for the motion picture mode are satisfied. ## Claims ### Claim 1 A computer providing a motion picture mode, comprising: a random access memory (RAM) configured to temporarily store data which is processed or to be processed by the control unit; a storage unit configured to store motion picture data, the storage unit including a hard disk drive (HDD); a graphic processing unit configured to display image data of the motion picture data stored in the storage unit and processed by the control unit; and an audio outputting unit configured to output audio signals of the motion picture data stored in the storage unit and processed by the control unit; a control unit operatively connected to the RAM, the storage unit, the graphic processing unit and the audio outputting unit, wherein the control unit is configured to process the motion picture data stored in the storage unit and to control a system mode of the computer, and determine whether a condition for entering a motion picture mode has been satisfied, wherein the motion picture mode is a mode in which system power is supplied only to the RAM, the graphic processing unit, the audio outputting unit and the control unit, and wherein clock speeds of a central processing unit (CPU) of the control unit, the graphic processing unit and a bus of the computer are decreased when the condition has been satisfied, wherein, if the condition for the motion picture mode is satisfied, then the control unit stores system state information of a state before entering the motion picture mode in the RAM or the HDD, and changes the system mode to the motion picture mode, wherein the condition for entering the motion picture mode is satisfied with an elapse of a predetermined time after playing back motion pictures, and wherein the control unit resumes the state before entering the motion picture mode by resuming the supply of system power to the devices that are not needed to play motion pictures using the stored system state information when a resume event is detected during the motion picture mode. ### Claim 2 (depends on 1) The computer as claimed in claim 1, wherein one of the RAM and the HDD is selected as a memory unit by a user setting; and wherein the RAM stores the system state information during the motion picture mode, if the RAM is selected as the memory unit. ### Claim 3 (depends on 1) The computer as claimed in claim 1, wherein one of the RAM and the HDD is selected as a memory unit by a user setting; and wherein the HDD stores the system state information during the motion picture mode, if the HDD is selected as the memory unit. ### Claim 4 A method of setting up a system mode in a computer while playing motion pictures, the method comprising: (A) determining, by the computer, whether a condition for entering a motion picture mode is satisfied; and when the condition for the motion picture mode is satisfied, (B) storing, by the computer, system state information of a state before entering the motion picture mode; and (C) changing, by the computer, the system mode from the state to the motion picture mode, wherein the motion picture mode is a mode in which system power being supplied to devices that are not needed to play motion pictures is turned off when the condition has been satisfied, wherein the condition for entering the motion picture mode is satisfied with an elapse of a predetermined time after playing back motion pictures, and wherein the method further comprises resuming the state before entering the motion picture mode by resuming the supply of system power to the devices that are not needed to play motion pictures using the stored system state information when a resume event is detected during the motion picture mode and returning a clock speed that was changed upon entering the motion picture mode to a clock speed of the state before entering the motion picture mode. ### Claim 5 (depends on 4) The method as claimed in claim 4, wherein the devices of the computer needed to play the motion pictures comprise a random access memory (RAM), a graphic processing unit, an audio outputting unit and a control unit if motion picture data to be played is stored in a hard disk drive (HDD) of the computer. ### Claim 6 (depends on 5) The method as claimed in claim 5, wherein the devices of the computer needed to play motion pictures further comprise the HDD of the computer and the system power is intermittently supplied to the HDD during the motion picture mode. ### Claim 7 (depends on 4) The method as claimed in claim 4, wherein the devices of the computer needed to play motion pictures comprise a RAM, a graphic processing unit, an audio outputting unit, a control unit and optical disk drive (ODD) if motion picture data to be played is stored in the ODD. ### Claim 8 (depends on 5) The method as claimed in claim 5, wherein the system state information of step (B) is stored in the RAM or the HDD of the computer. ### Claim 9 (depends on 8) The method as claimed in claim 8, wherein the method further comprises: (D) when the condition for the motion picture mode is satisfied, decreasing clock speeds of a central processing unit (CPU) of the control unit, the graphic processing unit, and a bus of the computer. ### Claim 10 (depends on 9) The method as claimed in claim 9, wherein the clock speeds of the central processing unit and the graphic processing unit are controlled in order for the workloads of the central processing unit and the graphic processing unit to be 70% to 100% of the full workloads of the central processing unit and the graphic processing unit in step (D), respectively. ### Claim 11 (depends on 10) The method as claimed in claim 10, wherein the clock speed of the bus is controlled to be corresponding to the clock speed of the central processing unit or the graphic processing unit in step (D). ### Claim 12 (depends on 9) The method as claimed in claim 9, wherein the step (D) is periodically repeated so that the workloads of the central processing unit and the graphic processing unit are maintained to be 70% to 100% of the full workloads of the central processing unit and the graphic processing unit, respectively. ### Claim 13 (depends on 4) The method as claimed in claim 4, wherein the resume event is generated by a user input.