Power control circuitry for use in a computer system and systems using the same
First Claim
Patent Images
1. Circuitry for remotely controlling power in a computing system by selectively turning-on and turning-off at least one power source within said system comprising:
- an infrared receiver for receiving a code transmitted from a remote device;
circuitry for generating a pulse in response to said code, said pulse emulating an output of a switch;
a transistor having a control terminal for receiving said pulse and outputting a control signal in response; and
control logic operable to turn-off and turn-on said power source in response to said control signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Circuitry 400 remotely controls the power in a computing system. An infrared receiver 401 receives a code transmitted from a remote device 206; Circuitry 402 generates a pulse in response to the code, the pulse emulating an output of a switch 205. A transistor 403 has a control terminal for receiving the pulse and outputting a control signal in response.
-
Citations
22 Claims
-
1. Circuitry for remotely controlling power in a computing system by selectively turning-on and turning-off at least one power source within said system comprising:
-
an infrared receiver for receiving a code transmitted from a remote device; circuitry for generating a pulse in response to said code, said pulse emulating an output of a switch; a transistor having a control terminal for receiving said pulse and outputting a control signal in response; and control logic operable to turn-off and turn-on said power source in response to said control signal. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A power control system for use in a computer having at least one power source comprising:
-
control logic for turning-on and turning-off said power source in response to a control pulse; a mechanical switch operable to output a power control pulse in response to user input; and remotely activated power control circuitry coupled electrically in parallel with said mechanical switch comprising; a receiver for receiving a code transmitted from a remote device; a controller for decoding said code and generating a first signal emulating said pulse output from said mechanical switch; and an electrical switch for receiving said first signal from said controller and driving a second signal from a voltage source in response, said second signal transmitted to said control logic for selectively turning-on and turning-off said power source. - View Dependent Claims (7, 8, 9, 10, 11, 12)
-
-
13. Memory power supply circuitry comprising:
-
a first primary voltage supply for supplying a first voltage to a memory during a first state; a transistor having a current path for coupling said first voltage to said memory in response to a second voltage applied to a control terminal of said transistor; a second primary voltage supply for supplying said second voltage to said control terminal during said first state; circuitry for powering down said first and second power supplies during a second state; a standby voltage supply for supplying a standby voltage during said second state; and a voltage regulator for generating a memory standby voltage from said standby voltage for operating said memory in said second state. - View Dependent Claims (14, 15, 16, 17)
-
-
18. A computer system comprising:
-
a central processing unit running an operating system; first core logic for interfacing said central processing unit with a system memory and a bus; a peripheral controller coupled to said bus; second core logic coupled to said bus, said second core logic in response to a power down signal operable to; save a state of the operating system and data being processed in system memory; switch said system memory to a low power mode; terminate primary power to said central processing unit, said controller and said system memory; and switch standby power to said system memory. - View Dependent Claims (19, 20, 21, 22)
-
Specification