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6279115 |
Circuit arrangement for monitoring of an electric tripping device for low-voltage switches
A circuit arrangement is described for monitoring an electronic tripping device for low-voltage switches having a microprocessor device which, in conjunction with a digital-analog converter,...
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6275949 |
Power controller for a peripheral device that stores the on/off state thereof when power is removed from the device
After an activation of the CPU in a peripheral device in a computer system, a determination is made whether an external power supply input or operation of a software switch is inputted as a...
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6266776 |
ACPI sleep control
When the state of an internal battery or an external power supply changes, the change is detected by an embedded controller. The OS is informed of this change using a power management event signal...
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6246399 |
Active matrix liquid crystal display
An active matrix liquid crystal display consuming only a small amount of electric power. The liquid crystal display has two driver circuits which drive two sets of signal lines, respectively, One...
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6243819 |
Lid switch in portable computers and the power management system using the same
A portable computer supported by a power management system that responds to a closed state and an open state of a flat panel display. A closed position and an open position of a lid (housing the...
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6230276 |
Energy conserving measurement system under software control and method for battery powered products
A battery powered device using a method for efficiently supplying operational power to a measurement system for brief periods of time for the purpose of maximizing battery life while minimizing...
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6195753 |
Information processing apparatus with reduced power consumption
An information processing apparatus includes an instruction memory, an instruction register, a plurality of function blocks, an instruction/state decoder, and a clock supply/stop circuit. The...
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6163854 |
Switchgear cabinet monitoring installation
A switchgear cabinet monitoring installation, wherein a switchgear cabinet has at least one control device for units built-in or units attached to the switchgear cabinet, and at least one server. A...
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6160594 |
Liquid crystal device having drive duty ratios of all display portions in the power-saving operation mode lower than those in the normal operation mode
A structure of a liquid crystal device cutting down the power consumption is materialized. In a liquid crystal display device comprising at least two display portions of a dot matrix portion and an...
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6144976 |
Hand-held data collection computer terminal having power management architecture including switchable multi-purpose input display screen
A portable data collection terminal has an elongate housing with a hand grip conforming rear surface. A front surface features a numerical keyboard adjacent a lower end of the housing and an LCD...
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6119048 |
Integrated circuit for processing digital signal
A digital signal process of a plurality of functions is enabled by a common hardware constructed on one chip having input terminals t1, t2 and t2'; output terminals t3 and t4; and a control signal...
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6119240 |
Low power data processing system for interfacing with an external device and method therefor
A data processor (10) flexibly interfaces with both a variety of memory devices and external peripheral devices. A control register (94) is provided for dynamically controlling an electrical...
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6105139 |
Controller-based power management for low-power sequential circuits
A low-overhead controller-based power management technique that re-specifies control signals to reconfigure existing multiplexer networks and functional units to minimize unnecessary activity....
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6065125 |
SMM power management circuits, systems, and methods
Circuits, systems, and methods relating to operating a computer system operable in a system manager mode (24). The method includes various steps. The first step (34) occurs during operation of the...
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6055640 |
Power estimation of a microprocessor based on power consumption of memory
A power estimator calculates the total power consumption of a microprocessor having a CPU 5, a main memory 1 and a plurality of cache memories 2, 3 and 4 based on an assembler description of a...
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6029006 |
Data processor with circuit for regulating instruction throughput while powered and method of operation
A data processor (10) incorporates instruction regulating or "throttling" circuitry (31) for limiting consumed power. A user visible register maintains an INTERVAL field by which instruction fetch...
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6016548 |
Apparatus for controlling duty ratio of power saving of CPU
A computer system capable of entering a sleep mode is disclosed. The rate at which the computer switches between a normal state and a stop grant state while in the sleep mode is controllable by a...
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6011323 |
Apparatus, method and article of manufacture providing for auxiliary battery conservation in adapters
An apparatus, method and article of manufacture are disclosed which provides for auxiliary battery conservation in adapters requiring auxiliary batteries. A power controller selects from one of two...
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6011383 |
Low powering apparatus for automatic reduction of power in active and standby modes
A low powering apparatus for automatic reduction of power in active and standby modes is disclosed. The low powering apparatus includes a state detector, a margins of safety device and a...
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5996082 |
System and method for delaying a wake-up signal
A pen-based personal computer includes a main power switch for initial power-up. The pen-based portable personal computer includes a keyboard controller which controls power management of the...
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5974559 |
Information processing apparatus, method for managing status thereof and memory medium
There are provided an information processing apparatus, a status managing method therefor and a memory medium therefor, in which the power saving status or the active status of a host equipment is...
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5961648 |
Heater preheating device for cathode ray tube
A computer having a monitor driving device for controlling video display turn-on time includes a power supply, a computer circuit, a monitor which may be integrated with the computer in one body,...
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5953536 |
Software-implemented tool for monitoring power management in a computer system
A software-implemented tool for monitoring CPU power usage in a personal computer system, especially well-suited for use in battery-powered computers running a Windows® operating system, includes...
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5953237 |
Power balancing to reduce step load
A method and structure of power balancing is capable of simultaneously minimizing maximum power while also reducing the step load of any electronic system, subsystem, or device having one or more...
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5945745 |
Activation control for an automotive electronic module
A detector and battery switch control energy flow from a battery in a vehicle to an electronic module. The vehicle ignition switch controls battery energy flow when the ignition switch is on and...
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5941989 |
Apparatus for indicating power-consumption status in a computer system
A method and apparatus for improved indication of power-consumption status in a computer system is described. The computer system includes a light-emitting diode (LED) which produces an optical...
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5925132 |
Method and apparatus for implementing power saving mode
A device control apparatus and a corresponding method allow the smooth recovery from a power saving mode to a stand-by state without malfunction. When the power saving mode is on and a signal which...
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5926404 |
Computer system with unattended operation power-saving suspend mode
A portable computer is provided with enhanced power management capabilities. The portable computer includes a power management system which makes a determination as to whether the computer is "user...
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5926173 |
Circuit for driving liquid crystal display having power saving feature
A circuit for driving an LCD panel having a power saving feature, in which each invalid data interval in which there is no data output to be displayed is sensed, and during a time corresponding to...
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5925130 |
Computer power switch interlock
The present invention supports computers or electronic devices that have a sleep, hibernation or low power mode. Because a device may appear to be off in low power mode, the present invention acts...
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5923273 |
Reduced power FIR filter
A reduced power FIR filter may be utilized as the digital decimation filter for a delta sigma ADC. The FIR filter utilizes a serial bit stream which is part of the control path of the filter. Thus,...
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5920727 |
Timer-controlled computer system shutdown and startup
A system for managing power levels for a general purpose computer having a standby and a full-power mode of operation provides apparatus and a method for monitoring times of user input and control...
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5917479 |
Method for reducing power consumption in a monitor
The invention relates to a method and arrangement for managing the power control of a monitor. In the solution according to the invention the monitor synchronizing signals are not monitored...
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5913068 |
Multi-processor power saving system which dynamically detects the necessity of a power saving operation to control the parallel degree of a plurality of processors
A computer is constituted by a plurality of CPUs having the same power consumption and the same performance. A system controller has an interrupt control section. The interrupt control section...
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5907197 |
AC/DC portable power connecting architecture
A portable computer system which includes a modified C-7 power cord socket, which can receive either an AC power cord with a standard C-7 connector or a DC power cord with a modified C-7 connector....
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5905347 |
System and method for controlling a computer drive motor
A battery powered computer system has a drive motor and a motor speed control. The motor speed control receives electrical power from an unregulated source in the computer, such as a battery. The...
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5898235 |
Integrated circuit with power dissipation control
An integrated circuit device such as an SRAM operating in a battery backup mode, or operating in a quiescent mode when deselected in the operation of a portable electronic device, includes a power...
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5898879 |
Power consumption reducing apparatus in using no CPU bus system and method thereof
A bus master (other than the CPU) sends a signal to a bus controller requesting use of the bus. After receiving the bus-use request signal from the bus master, the bus controller sends a hold...
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5894579 |
Power management system and method
An apparatus and a method for managing power, in a computer system, whereby it is possible to so manage power, where there are a plurality of peripheral devices which can be simultaneously...
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5890799 |
Method for reducing power consumption in a portable electronic device with a liquid crystal display screen
A method and apparatus for reducing power consumption in a portable electronic device (100) with an LCD screen (104) and operating with a CPU (114) switchable between a high power mode and a low...
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5883446 |
System for switching between stand-by and wake-up states, of an information processing unit and of an analogue switch
In this system including a switching device (21) interposed between an information processing unit (22) and an analogue switch (23), in which the unit includes an analogue information input (24)...
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5880986 |
Method and apparatus for reducing power usage within a domino logic unit
Power reduction is achieved either statically or dynamically within domino logic circuits. For static power reduction, representative input signals to the logic circuit are analyzed and any...
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5870613 |
Power mangement system for a computer
A power management system for a personal computer comprises a power management processor, a switchable power supply and a keep alive power supply. The processor is powered by the keep alive power...
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5857115 |
Method for controlling power to individual audio-video units making up an audio-video system
A power controlling apparatus turns off a power to an apparatus whose connection to a central apparatus has been cut by a connection change, thus selectively turning off a power to an apparatus not...
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5852737 |
Method and apparatus for operating digital static CMOS components in a very low voltage mode during power-down
A static CMOS component is operated in a power-down state at the lowest possible voltage that maintains register and internal state levels of the component. A method of operating the static CMOS...
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5850358 |
Portable work station and data collection terminal including switchable multi purpose touch screen display
A portable data collection terminal has an elongate housing with a hand grip conforming rear surface. A front surface features a numerical keyboard adjacent a lower end of the housing and an LCD...
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5848281 |
Method and apparatus for powder management in a multifunction controller with an embedded microprocessor
A method and apparatus for providing power management functions in a multifunction controller having an embedded microprocessor. An enter sleep mode indication is received in the microprocessor in...
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5844813 |
Information processing apparatus and method with setting of power off state and with recognition of printer operating state
An information processing apparatus includes an information processing unit power saving controller for controlling a power saving function of an information control unit for controlling various...
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5845139 |
System for providing a host computer with access to a memory on a PCMCIA card in a power down mode
A wake-up system is provided to allow host computer access to a Card Information Structure (CIS) on a PCMCIA card during a SLEEP mode. The CIS is stored in a non-volatile memory accessible to a...
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5845137 |
Method and apparatus for setting the reduced power mode of a processing system in accordance with the type of peripherals connected to the processing system
An information processing system that can return to an operational state at any time as a result of an event input from a peripheral device which is constructed by an information processing system...
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