Abstract:
PROBLEM TO BE SOLVED: To reduce standby electric power in a computer device for supporting the wake-up function. SOLUTION: This computer device has a CMOS 64 for storing valid or invalid information on the wake-up function capable of rising a system by operation from a remote place, a PM BIOS 62 for controlling a gate array 66 by confirming the valid or invalid information stored in this CMOS 64 at shutdown request time for the system, and a switch 67 for turning on and off supply of electric power from an auxiliary power source on the basis of indication of the gate array 66, and determines whether or not respective devices such as a mini PCI card 28 and a communication card 48 can realize the wake-up function. The switch 67 turns on and off the supply of the electric power from the auxiliary power source at power-off time with every device. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To materialize the execution of a prescribed processing immediately before turning off a power supply for a computer without increasing the load or the like. SOLUTION: A shutdown reset logic 52 is connected between a power supply management part 68 in a core chip and a power supply circuit 54. The logic 52 is enabled immediately before the shutdown of a system, interrupts the input of a power OFF signal SUSC outputted from the management part 68 to the circuit 54, inputs a signal LAST#PWG#PIIX4 expressing the defect state of the power supply to the management part 68 to generate hardware reset, and inputs a signal PERSW#PIIX4 expressing the ON of a power supply switch 92. Thereby, a POST is started and the POST enables the WOL function of a network adaptor and then turns off the power supply of the system.
Abstract:
PROBLEM TO BE SOLVED: To reduce lowering in processing performance due to control for reducing heat generation. SOLUTION: An information processor is provided with: a plurality of devices each having a high power mode in which power consumption and a processing speed are a higher operation mode and a low power mode in which power consumption and a processing speed are a lower operation mode than the high power mode; a measuring part for measuring the temperature of a predetermined measurement part; a selecting part for selecting a device minimizing the lowering in the processing performance which occurs when the operation mode is changed from the high power mode to the low power mode when the measured temperature is not less than a predetermined reference temperature, resulting in a decrease in the temperature of the measurement part; and an operation mode setting part for changing the operation mode of the selected device from the high power mode to the lower power mode. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To reduce power consumption at shutdown time in a computer device with a battery. SOLUTION: This computer device includes an AC adapter constituted connectably to a computer system by a power supply circuit 50 of the computer system and supplying a power to the system, a main battery 57 and a second battery 58 constituted connectably to the computer system and supplying the power to the system by discharging after charging by the power from the AC adapter 51, and a gate array circuit 62 turning off the power supply to a charger 56, or a charge circuit of the main battery 57 and/or the second battery 58, and an embedded controller 63, when the main battery 57 and/or the second battery 58 is connected to the AC adapter 51. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To reduce power consumption when a computer with a mini PCI card or a device corresponding to the mini PCI card inserted thereinto is in an inactive state. SOLUTION: An I/O bridge 21 for outputting inactive information about whether or not a computer system is in an inactive state and a Vaux off at sleep resister 42d holding information about whether or not to feed auxiliary power VccAUX to a mini PCI device 60 when the computer system is inactive, are provided. When a signal from the I/O bridge 21 is L and a signal from the register 42d is L, the feeding of the auxiliary power VccAUX is stopped from a DC/DC converter 55.
Abstract:
PROBLEM TO BE SOLVED: To easily realize information communication even if a computer is operated at an energy saving mode where power consumption is suppressed. SOLUTION: In the power-on method, an RF data reception program is executed by the supply of the power of a computer. A high level signal equivalent to a signal outputted when AC power is detected through an OR element 79 in setting for validating a power-on function is outputted. A power-on circuit 75 controls a regulator circuit 69 and outputs power voltage. A power controller 45 conducts an FET switch 35 through a power switch controller 48 and supplies power to an RF module 33. At the time of a power saving mode, a Wake UP signal is outputted from the RF module 33 and the power controller 45 turns on power. The power-on circuit 75 controls the regulator circuit 69, outputs power voltage and turns on power through a detection circuit 83 even at the time of a minimum power operation.
Abstract:
PROBLEM TO BE SOLVED: To inhibit access to a computer when the security device of a computer with a security function is illegally detached. SOLUTION: When the computer is powered ON, a POST program is executed and in the setting which makes the security function effective, an RFID chip 33 holds Removal Detect Enable at high level and outputs it to the control side of an analog switch 67 and one input side of a NAND element 63. A 1st short-circuit element 36 is isolated by the attachment or detachment of an RF antenna 37 to disconnect terminals 71 and 73 and an INTR signal of keyboard inhibition is outputted with the high-level signal of the element 63, inhibiting access to the computer. When the power source is OFF and the RF antenna is attached or detached, an analog switch 67 is turned OFF to cut off the electric power from a lithium battery to a CMOS memory 50, thereby inhibiting access to the computer.
Abstract:
PROBLEM TO BE SOLVED: To automatically and accurately specify respective hard disk drives(HDD) according to their connection state by providing a 1st and a 2nd connector which connect the HDDs and giving priority to the 1st connector when a master and a slave HDD are specified. SOLUTION: A personal computer PC is equipped with the 1st and 2nd connectors 10 and 20 for connecting the HDDs 30. The connectors 10 and 20 have -M/S pins 11 and 21 for setting the connected HDDs 30 as a master or slave and DETECT pins 12 and 22 for detecting whether or not the HDDs 30 are connected. The -M/S pin 11 of the 1st connector 10 is held at a 1st voltage level for setting the connected HDD 30-a as the master. Further, the -M/S pin 21 of the 2nd connector 20 is held at a 2nd voltage for setting the connected HDD 30-b as the slave when the HDD 30-a is connected to the 1st connector 10 and also held at the 1st voltage unless the HDD 30-a is connected to the 1st connector 10.