Display device with anti-crime security function
First Claim
Patent Images
1. A display device comprising:
- a display unit which displays images represented by video signals received from an external information processing device external to the display device;
a detector which detects an ambient environment condition;
a memory which stores information indicative of an authorized user;
operation buttons for on-screen display;
a power supply; and
a control unit coupled to the display unit, the detector, the memory, and the operation buttons which are in the display device, wherein,when the display device is powered on and then the control unit determines that power to the power supply has been shut off for longer than a threshold period of time, the control unit controls the display device to operate in an alarm mode of operation before the control unit determines whether information indicative of the authorized user is entered,the control unit controls the display device in a normal mode of operation to operate in a normal state according to an information signal from the external information processing device,the control unit controls the display device to enter into an anti-crime security mode of operation, when a state representing that the external information processing device may not be currently used is determined,the control unit cancels the anti-crime security mode of operation, when the control unit determines that information indicative of the authorized user for confirmation has been entered through the operation buttons for on-screen display by a user in the anti-crime security mode of operation,the control unit controls the display device to operate in the alarm mode of operation, when the control unit determines that information indicative of the authorized user for confirmation has not been entered by a user in the anti-crime security mode of operation, andthe control unit performs an alarm operation in the alarm mode of operation.
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Accused Products
Abstract
A control unit of a display device controls the display device in a normal mode of operation to operate in a normal state. The control unit controls the display device to enter into an anti-crime security mode of operation, when a state representing that the external information processing device may not be currently used is determined. The control unit cancels the anti-crime security mode of operation, when the information indicative of an authorized user for confirmation has been entered through the operation buttons by a user in the anti-crime security mode of operation. The control unit controls the display device to operate in an alarm mode of operation, when information indicative of the authorized user for confirmation has not been entered by a user in the anti-crime security mode of operation. The control unit performs an alarm operation in the alarm mode of operation.
10 Citations
20 Claims
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1. A display device comprising:
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a display unit which displays images represented by video signals received from an external information processing device external to the display device; a detector which detects an ambient environment condition; a memory which stores information indicative of an authorized user; operation buttons for on-screen display; a power supply; and a control unit coupled to the display unit, the detector, the memory, and the operation buttons which are in the display device, wherein, when the display device is powered on and then the control unit determines that power to the power supply has been shut off for longer than a threshold period of time, the control unit controls the display device to operate in an alarm mode of operation before the control unit determines whether information indicative of the authorized user is entered, the control unit controls the display device in a normal mode of operation to operate in a normal state according to an information signal from the external information processing device, the control unit controls the display device to enter into an anti-crime security mode of operation, when a state representing that the external information processing device may not be currently used is determined, the control unit cancels the anti-crime security mode of operation, when the control unit determines that information indicative of the authorized user for confirmation has been entered through the operation buttons for on-screen display by a user in the anti-crime security mode of operation, the control unit controls the display device to operate in the alarm mode of operation, when the control unit determines that information indicative of the authorized user for confirmation has not been entered by a user in the anti-crime security mode of operation, and the control unit performs an alarm operation in the alarm mode of operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A display device comprising:
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a display unit which displays images represented by video signals received from an external information processing device external to the display device; a detector which detects an ambient environment condition; a memory which stores information indicative of an authorized user; operation buttons for on-screen display; a power supply; and a control unit coupled to the display unit, the detector, the memory, and the operation buttons which are in the display device, wherein, when the display device is powered on and then the control unit determines that power to the power supply has been shut off for longer than a threshold period of time, the control unit controls the display device to operate in an alarm mode of operation before the control unit determines whether information indicative of the authorized user is entered, the control unit controls the display device in a normal mode of operation to operate in a normal state according to an information signal from the external information processing device, the control unit controls the display device to enter into an anti-crime security mode of operation, when a state representing that the external information processing device may not be currently used is detected by the detector, the control unit cancels the anti-crime security mode of operation, when the control unit receives information indicative of the authorized user from the external information processing device in the anti-crime security mode of operation, the control unit controls the display device to enter into the alarm mode of operation, when the control unit does not receive information indicative of the authorized user from the external information processing device in the anti-crime security mode of operation, and the control unit performs an alarm operation in the alarm mode of operation. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification
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Current AssigneeFujitsu Limited
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Original AssigneeFujitsu Limited
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InventorsUeno, Keizou
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Primary Examiner(s)Wu, Daniel
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Assistant Examiner(s)RUSHING, MARK S
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Application NumberUS12/173,731Publication NumberTime in Patent Office1,358 DaysField of Search340/506, 340/571, 340/679, 340/680, 348/156US Class Current340/506CPC Class CodesG06F 21/316 by observing the pattern of...G06F 21/74 operating in dual or compar...G06F 21/83 input devices, e.g. keyboar...G06F 2221/2105 Dual mode as a secondary as...G08B 13/19 using infrared-radiation de...G08B 13/19697 Arrangements wherein non-vi...G08B 15/001 Concealed systems, e.g. dis...G08B 25/001 Alarm cancelling procedures...
