Apparatus for and method of turning on and shutting off a computing device

• US 5,745,391 A
• Filed: 09/13/1995
• Issued: 04/28/1998
• Est. Priority Date: 09/13/1995
• Status: Expired due to Term

• Current Assignee: Jordaan Holdings LLC (Intellectual Ventures LLC)
• Original Assignee: Yakov Topor
• Inventors: Topor, Yakov
• Primary Examiner(s): Elmore, Reba I.
• Assistant Examiner(s): Moise, Emmanuel L.
• Application Number:
  US08/527,617
• Time in Patent Office: 958 Days
• Field of Search: 364/707, 395/575, 395/750, 395/182.13, 395/182.2, 395/182.21, 395/182.22
• US Class Current: 713/321
• CPC Class Codes: G06F 9/4418 Suspend and resume; Hibernate and awake

Abstract

An apparatus for and method of turning a computer on and off. A switch accepts on and off commands from a user which are transmitted to latch circuitry which, in turn, controls relay control circuitry. Relay control circuitry opens or closed a relay in response to the switch input. Issuance of an off command causes the computer to save its internal memory contents to nonvolatile memory storage. After the internal state of the computer is saved, the relay opens and cuts off electrical power to the computer, forcing it off. Issuance of an on command causes power to be restored to the computer and the internal state of the computer is restored from non-volatile memory to the computer. Alternatively, on and off commands may be received by latch circuitry from a remotely located central controller. Commands travel across a network and are received by network interface circuitry.

Claims

1. An apparatus for turning on and shutting down a computing device, comprising:

a control switch separate from any power on/off switch constituent to the computing device, said control switch for receiving on and off commands for toggling the computing device between an on state and an off state;

latch circuitry electrically coupled to said control switch, said latch circuitry

(a) for retaining whether the computing device is in said on state or said off state;

(b) for sensing said control switch on and off commands; and

,

(c) for providing turn-on and turn-off commands to the computing device;

a relay controller, said relay controller electrically coupled to said latch circuitry for controlling the operation of a relay;

said relay electrically coupled to said relay controller and to a source of electrical current, said relay for controlling the flow of electrical current to the computing device;

non-volatile memory for storing the internal state of the computing device while the computing device is in said off state;

a saving program for

saving the current internal state of the computing device to said non-volatile memory upon receipt by said control switch of said off command,

said saving program for disconnecting electrical power from the computing device whereby the computing device is put into said off state;

a restoring program for

providing electrical power to the computing device whereby the computing device is put into said on state,

said restoring program for restoring the internal state of the computing device from said non-volatile memory, upon receipt by said control switch of said on command; and

,

computer interface circuitry for communication between said latch circuitry and said saving program and said restoring program.

2. The apparatus of claim 1, wherein said control switch includes an electrical switch.

3. The apparatus of claim 1, wherein said control switch includes network interface circuitry to receive said on and said off commands remotely from a remote central controller.

4. The apparatus of claim 1, wherein said non-volatile memory is integral with the computing device, meaning a portion of a long term memory storage inside the computing device is used to store non-volatile data.

5. The apparatus of claim 1, wherein said non-volatile memory is external to the computing device.

6. The apparatus of claim 1, wherein said non-volatile memory includes external non-volatile storage media.