GB2223610A - Power control security system for a computer - Google Patents

Power control security system for a computer Download PDF

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Publication number
GB2223610A
GB2223610A GB8817919A GB8817919A GB2223610A GB 2223610 A GB2223610 A GB 2223610A GB 8817919 A GB8817919 A GB 8817919A GB 8817919 A GB8817919 A GB 8817919A GB 2223610 A GB2223610 A GB 2223610A
Authority
GB
United Kingdom
Prior art keywords
code
computer
security system
power control
keyboard
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB8817919A
Other versions
GB8817919D0 (en
Inventor
Cooper Hwang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EXPERT ELECTRONIC CO Ltd
Original Assignee
EXPERT ELECTRONIC CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EXPERT ELECTRONIC CO Ltd filed Critical EXPERT ELECTRONIC CO Ltd
Publication of GB8817919D0 publication Critical patent/GB8817919D0/en
Publication of GB2223610A publication Critical patent/GB2223610A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/81—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer by operating on the power supply, e.g. enabling or disabling power-on, sleep or resume operations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/83—Protecting input, output or interconnection devices input devices, e.g. keyboards, mice or controllers thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Power Sources (AREA)

Description

0 2223610 TITLE: POPIER CONTROL C-.('UI;'.T SYSTEM FOR COMPUTER SE ITY S
This invention relates to a power control security system for a computer.
It has been found that the security of the data stored in a computer is achieved by either hardware or software. The former utilizes a mechanical lock or a code lock to turn on a computer or the input of a keyboard, while the latter applies the principles of code comparation, file name concealment or the like. Nevertheless, the mechanical lock and the code lock are easily damaged and so the data stored in the computer can be easily copied or modified. In addition, such security system must be opened on the spot by the responsible person thereby causing.7 much inconvenience. As to the latter, the data can be printed out and so they can still be read out through some complex procedures. Hence, such security means are insufficient to ensure the data stored in a computer not to be stolen and do not meet the need of the market.
It is, therefore, an object of the present invention to provide a computer security system which may obviate and mitigate the abovementioned drawbacks.
(1) 1 This invention relates to a power control security system for a computer.
It is the primary object of the present invention to provide a computer security system which utilizes a code controller to control a power switch such as a relay S.C.R. or TRAC so as to keep data stored in the computer from being disclosed without keying in the correct code of the code controller.
It is another object of the present invention to provide a computer security system which can be controlled on the spot, via a computer network or by means of radio signals.
It is another object of the present invention ot provide a computer security system which can ensure the data stored in a computer not to be copied or modified without permit.
It is still another object of the present invention to provide a computer security system which is easy to produce.
It is still another object of the present invention (2) 1 c to provide a computer security system which is very low in cost.
It is a further object of the present invention to provide a computer security system which is facile to operate.
The novel features which are characteristics of the invention, togethe-r with further objects and advantages thereof will be better understood from the following description considered in connection with the accompanied drawings and in which a preferred embodiment of the invention is illustrated by way of example. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition.of the limits of the invention.
(3) 1 BRIEF DESCRIPTION OF THE DRAWINGS
FIG.1 shows an electrical circuit of a cod controller of the present invention; and FIG.2 shows the cormiunication circuit of th present invention.
(4) e For purposes of promoting an understanding bf the principles of the invention, reference will now be made to the embodiment illustrated in the drawings. Specific language will be used to deseribe same. It will, nevertheless, be understood that no limitation of the scope of the invention is thereby intended, such alternations and further modifications in the illustrated device, and such further modifications in the illustrated device, and such further applications as would normally occur to one skilled in the art to which the invention relates.
With reference now to FIG.1, the code controller according to the present invention mainly comprises a single chip microprocessor UI, a set of switches SW, a keyboard, a remote control input RX, a remote control output TX, a power control output 32, a keyboard control output 31 and some resistors, capacitors and transistors. The switches SW are used to set a four-digit code. To set the code, first press the P.W. key of the keyboard, then a code such as 4321 preset in the factory and another code such as 9876. The above-mentioned procedure may (5) change the code as desired. Meanwhile, the power control output 32 has not yet been actuated. When desired to turn on the power, it is necessary to press the P.W. button of the keyboard first and then the code such as 9876 thereby turning on the computer or the power swith of the hard disc driver. If the code is keyed in once more,'it will be turned pff. The keyboard control output 31 is used to control the look-in signal of the keyboard, which function and controlling way are just the same as the above-mentioned. The remote control output TX and the remote control input RX utilize a computer network or remote control communication to achieve the function thereof. FIG.2 shows the communication circuit of present invention. As illustrated, the code may be transmitted to the communication ciruit (TX +, TiX -) via transformation of an electrical interface U3 from the remote control output T.',,',. Reversely, it may be via the signal of the communication circuit (TX +, TX -) which is picked up by another interface U4 and then transmitted into the single.chip microprocessor U1 of the code controller (6) from the remote control input RX for discrimination. If the code is correct. it will control the computer or the mechanism according to the aforementioned principle.
It conclusion, the present invention is mainly characterized by the following:
1. The present invention can be applied to microcomputers, personal computers as well as power supplies such as exchange power supply of a working station, with only the explosure of the code output and input portions such as the keyboard. Hence, if no correct code is keyed in and the power supply has no switch to turn on, then the inside relay switch cannot be turned on and no power will be supplied to the computer. Further, since the input of an exchange power supply is alternating current while the output thereof is direct current, it is impossible to use the alternating current to supply power to the computer without the control of the present invention thereby keeping confidential the data stored in the computer.
2. Similarly, the present invention can also applied (7) 1 4 to important mechanics such as hard disc driver. Since it is integrally combined with the present invention, the hard disc driver will have no power if no correct code is keyed in thus preventing the data stored in the hard disc from printing out.
3. The present invention of the integrated circuit simply by unitarily formed with the microprocessor or the control integrated circuit so as to control the power supply thereof. In consequence, if no correct code is keyed in, no power will be supplied thereto and the data stored in the computer can be kept confidential.
Although the present invention has been described ith a certain degree of particularity, it is understood the present disclosure is made by of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.
(8) 4

Claims (3)

CLAIMS:
1. A power control security system for a computer utilizing a code controller to control a power switch such as a relay so as to keep data stored in the computer from being disclosed without keying in correct code of the code controller, saed code controller comprising: a set of switches for setting a main code; a keyboard and a remote control imput for receiving input of a code; a remote control output for sending out a code; a power control output for controlling a power switch such as a relay, S. C. R. or TRAC and a keyboard control output for controlling lock-in cif the keyboard.
2. The power control security system as claimed in Claim 1, wherein the input and output of the code are by means of transformation of an interface via a communication circuit.
3. The power control security system as claimed in Claim 1, wherein said code controller may be combined with a controlled power supply or unitarily formed with a controlled integrated circuit.
(9) Published 1990 atnie Patent Office, State House, 6671 High Holborn, London WCIR4TP. Further copies maybe obtained from The Patent OfficeSales Branch, St Mary Cray, Orpington. Kent BR5 3RD. Printed by Multiplex techniques lid, St Mary Cray. Kent. Con. 1187
GB8817919A 1988-08-01 1988-07-27 Power control security system for a computer Withdrawn GB2223610A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19883826136 DE3826136A1 (en) 1988-08-01 1988-08-01 POWER SUPPLY SECURITY SYSTEM FOR COMPUTER

Publications (2)

Publication Number Publication Date
GB8817919D0 GB8817919D0 (en) 1988-09-01
GB2223610A true GB2223610A (en) 1990-04-11

Family

ID=6360039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8817919A Withdrawn GB2223610A (en) 1988-08-01 1988-07-27 Power control security system for a computer

Country Status (2)

Country Link
DE (1) DE3826136A1 (en)
GB (1) GB2223610A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1001331A2 (en) * 1998-11-11 2000-05-17 O2 Micro International Limited Pre-boot security controller

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0155558B1 (en) * 1990-11-30 1998-11-16 구자홍 Power saving method and its apparatus
EP0605618A4 (en) * 1991-09-23 1998-05-13 Microsystems Z Enhanced security system for computing devices.
EP1672465A1 (en) * 2004-12-16 2006-06-21 Topseed Technology Corp. Method of power on/off management for electronic device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1539448A (en) * 1975-06-06 1979-01-31 University Patents Inc Electronic calculator lock
GB1588147A (en) * 1977-01-25 1981-04-15 Ibm Information exchange system
GB2060228A (en) * 1979-10-09 1981-04-29 Mastiff Security Syst Ltd Computer System
WO1983002343A1 (en) * 1981-12-29 1983-07-07 Marathon Oil Co Computer terminal security system
EP0101772A1 (en) * 1982-09-01 1984-03-07 Jerome Hal Lemelson Computer security systems
WO1985003785A1 (en) * 1984-02-22 1985-08-29 Gordian Systems, Inc. Solid state key for controlling access to computer software
WO1987001835A1 (en) * 1985-09-12 1987-03-26 Basil Eliseus Philipsz Secure computer system
WO1988001408A1 (en) * 1986-08-16 1988-02-25 Runtime Innovations Limited System for controlling access to a store of information

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1539448A (en) * 1975-06-06 1979-01-31 University Patents Inc Electronic calculator lock
GB1588147A (en) * 1977-01-25 1981-04-15 Ibm Information exchange system
GB2060228A (en) * 1979-10-09 1981-04-29 Mastiff Security Syst Ltd Computer System
WO1983002343A1 (en) * 1981-12-29 1983-07-07 Marathon Oil Co Computer terminal security system
EP0101772A1 (en) * 1982-09-01 1984-03-07 Jerome Hal Lemelson Computer security systems
WO1985003785A1 (en) * 1984-02-22 1985-08-29 Gordian Systems, Inc. Solid state key for controlling access to computer software
WO1987001835A1 (en) * 1985-09-12 1987-03-26 Basil Eliseus Philipsz Secure computer system
WO1988001408A1 (en) * 1986-08-16 1988-02-25 Runtime Innovations Limited System for controlling access to a store of information

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1001331A2 (en) * 1998-11-11 2000-05-17 O2 Micro International Limited Pre-boot security controller
EP1001331A3 (en) * 1998-11-11 2001-08-22 O2 Micro International Limited Pre-boot security controller

Also Published As

Publication number Publication date
GB8817919D0 (en) 1988-09-01
DE3826136A1 (en) 1990-02-08

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)