摘要:
In order to reduce an electric power necessary to reproduce data in real time, a data processor includes: a data input unit (10) into which data is inputted in real time; an input data storing unit (11) in which the data inputted into the data input unit (10) is stored; a signal processing unit (12) operable to read out the data stored in the input data storing unit (11), and perform signal processing of data read from the input data storing unit (11); a signal processing control unit (13) operable to control the signal processing unit (12) to have the signal processing unit (12) perform an intermittent operation by having the signal processing unit (12) perform the signal processing at a processing speed faster than a real-time processing speed; a clock/power source control unit (14) operable to reduce electric power consumption of the signal processing unit (12) and the signal processing control unit (13) by restricting either or both a clock signal and an electric power to at least one section of the signal processing unit (12) and the signal processing control unit (13) in an inactive period of the intermittent operation; and an input monitor unit (15) operable to monitor the volume of data in the input data storing unit (11), to request the clock/power source control unit (14) to remove the restriction of either or both a clock signal and an electric power to at least one section of the signal processing unit (12) and the signal processing control unit (13) on the basis of the volume of data in the input data storing unit (11), and to request the signal processing control unit (13) to move into an active period of the intermittent operation.
摘要:
The present invention provides a data processor which can reduce the power consumption with the continuous compressed data, such as AV reproduction data, broadcast data or the like, to be reproduced, viewed and listened. The data processor comprises a decoder 11 for decoding the compressed data into decoded data while reading the compressed data from a first data storage 21, a second data storage 22 for storing therein the decoded data, a DA converter 41 for converting the decoded data into an analog signal while reading the decoded data from the second data storage 22 in real-time, a first controller 52 for controlling the decoder 11 to perform intermittent operation by executing a process between reading the compressed data and storing the decoded data at a speed faster than real-time, a clock/power controller 54 for making a restriction of power consumption of upstream from the second data storage 22 in downtime of the intermittent operation, a second controller 53 for outputting a control signal in accordance with the storage state of the decoded data stored in the second data storage 22, and an activation controller 55 for controlling the clock/power controller 54 to lift the restriction of the power consumption in response to reception of the control signal.
摘要:
A portable entertainment apparatus capable of communicating with a digital entertainment server is provided. The digital entertainment server is operable to store video content, and the portable entertainment apparatus is operable to store at least part of the video content stored in the digital entertainment server. The portable entertainment apparatus may include (i) a communications interface for downloading video content from the digital entertainment server in digital format, (ii) a storage module for storing the downloaded video content; and (iii) a controller coupled to and operable to control the operations of the communications interface and the storage module. The controller is operable to control the communication interface so as to download to the portable entertainment apparatus at least part of the video content stored in the digital entertainment server responsive to the portable entertainment apparatus establishing a communication with the digital entertainment server.
摘要:
In an information storage device adapted to use a power supply supplied from an interface or a battery, a voltage or a current input from the power supply during operation of the device is monitored, so that the power consumption or the function of the device is limited based on the result of monitoring.
摘要:
The present invention relates to an optical recording apparatus capable of writing information on an optical medium in a writing mode and capable of writing a label image on an optical medium in a label mode. The apparatus has a displaceable optical head with a radiation source capable of emitting radiation. The apparatus further contains one or more processing means adapted to: analyze radiation reflected from the medium, control the radial position of the optical head, control the focal point of the radiation relative to the optical medium, and control the radiation source. In label mode, the optical recording apparatus is adapted to turn off at least one of the processing means for a pre-defined period of time in order to reduce the power consumption and in turn the temperature of the apparatus.
摘要:
An optical recording controlling method and an optical recording apparatus utilizing the method implement operations of performing a recording operation to record the data in the recording medium, applying a pause request signal to stop, temporarily, the recording operation, determining whether to set a record resume time, and if the record resume time is set while the recording operation is in pause, temporarily stopping the recording operation and then resuming the recording operation at the record resume preset time. Therefore, the recording operation may be resumed at a user's desired time.
摘要:
An audio and/or video system is disclosed. The audio and/or video system includes an entertainment module (10) adapted for connection to a docking station (50). The entertainment module (10) includes output means (12, 25) for provding programming that is audible and/or visible. The entertainment module (10) includes an antenna (66) connected to a wireless module (62) that wirelessly accesses wireless audio and/or video programming, a storage means (64) for storing the wireless audio and/or video programming, and an input means (20) for receiving a compact disc or digital video disc (CD, DVD) that stores media audio and/or video programming. The docking station (50) may optionally include the antenna (66), wireless module (62) and storage means (64).
摘要:
In an optical drive system, a 'power down state' with a fast 'leave power down' timing is provided. In order to meet these timing requirements, when the controller switches the system from a normal power supply mode to a power save mode, the focus and radial servo loops are kept closed, and only the tilt is reduced to zero, i.e. the tilt compensation mechanism is temporarily disabled. In order to ensure a relatively speedy commencement of a read/record operation from the power down mode (and to avoid drifting away from the readout spot to the outer radius of the disc), the system is arranged to cause the radiation spot to jump back a track every time it approaches the sector address at which the pause mode was initiated. The sledge motor controller is disabled and the average radial actuator voltage (i.e. the average voltage applied to the radial actuator controlled by the radial servo loop) is used to determine when to jump back. Thus, an address readout function is no longer required.
摘要:
There is provided a RAID with high power and low power disk drives. A redundant array of independent disks (RAID) system, comprising a first disk array that includes X high power disk drives (HPDD), wherein X is greater than or equal to 2; a second disk array that includes Y low power disk drives (LPDD), wherein Y is greater than or equal to 1; an array management module that communicates with said first and second disk arrays and that utilizes said second disk array to cache data to and/or from said first disk array.