Display unit with controller enabling bi-directional communication with computer
DC CAFC
First Claim
Patent Images
1. A display unit having a communication control circuit for communicating with an externally connected computer, wherein said communication control circuit comprises:
- comparing means for comparing a first identification information which is previously stored in said display unit and a second identification information which is previously stored in said computer and is sent from said computer; and
a communication prohibition means for prohibiting communication between said computer with respect to display control of said display unit, when said first and second identification information do not match as a result of the comparison by said comparing means;
wherein said communication control circuit enables bi-directional communication with said display unit and said computer.
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Abstract
A display unit having a communication control circuit for communicating with an externally connected computer and which enables bi-directional communication with the display unit and the computer. The communication control circuit includes a comparator for comparing first identification information which is previously stored in said display unit and second identification information which is previously stored in the computer and is sent from the computer. The communication control circuit further includes at least one of a communication prohibitor for prohibiting communication between the computer with respect to display control of the display unit, when the first and second identification information do not match as a result of the comparison by the comparator or communication permitter for enabling communication for display control as a result of a match.
76 Citations
29 Claims
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1. A display unit having a communication control circuit for communicating with an externally connected computer, wherein said communication control circuit comprises:
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comparing means for comparing a first identification information which is previously stored in said display unit and a second identification information which is previously stored in said computer and is sent from said computer; and
a communication prohibition means for prohibiting communication between said computer with respect to display control of said display unit, when said first and second identification information do not match as a result of the comparison by said comparing means;
wherein said communication control circuit enables bi-directional communication with said display unit and said computer. - View Dependent Claims (2)
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3. A display unit having a communication control circuit for communicating with an externally connected computer, wherein said communication control circuit comprises:
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comparing means for comparing a first identification information which is previously stored in said display unit, and a second identification information which is previously stored in said computer and is sent from said computer; and
a reception prohibition means for prohibiting reception of a control command from said computer, for controlling at least one of a display size, a display position, a brightness, and a contrast of said display unit, when said first and second identification information do not match as a result of the comparison by said comparing means;
wherein said communication control circuit enables bi-directional communication with said display unit and said computer. - View Dependent Claims (4)
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5. A display unit having a communication control circuit for communicating with an externally connected computer, wherein said communication control circuit comprises:
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memory means for storing at least data of a frequency range to which said display unit is operable;
comparing means for comparing a first identification information which is previously stored in said display unit, and a second identification information which is previously stored in said computer and is sent from said computer; and
a communication permission means for permitting communication between said computer, at least with respect to said data of a frequency range stored in said memory means, when said first and second identification information match as a result of the comparison by said comparing means;
wherein said communication control circuit enables bi-directional communication with said display unit and said computer. - View Dependent Claims (6, 7, 8)
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9. A display unit having a communication control circuit for communicating with an externally connected computer, wherein said communication control circuit comprises:
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memory means for storing at least data of a frequency range for which said display unit is operable;
comparing means for comparing a first identification information which is previously stored in said display unit in advance, and a second identification information which is previously stored in said computer and is sent from said computer; and
a communication prohibition means for prohibiting communication between said computer, at least with respect to said data of a frequency range stored in said memory means, when said first and second identification information do not match as a result of the comparison by said comparing means;
wherein said communication control circuit enables bi-directional communication with said display unit and said computer. - View Dependent Claims (10, 11, 12, 13)
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14. A display unit having a communication control circuit for communicating with an externally connected computer, wherein said communication control circuit comprises:
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comparing means for comparing a first identification information which is previously stored in said display unit, and a second identification information which is previously stored in said computer and is sent from said computer; and
a communication permission means for enabling display control by said computer and permitting communication between said computer and said display unit with respect to display control of said display unit, when said first and second identification information match as a result of the comparison by said comparing means, wherein said communication control circuit enables bi-directional communication with said display unit and said computer.
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15. A display unit having a communication control circuit for communicating with an externally connected computer, wherein said communication control circuit comprises:
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comparing means for comparing a first identification information which is previously stored in said display unit, and a second identification information which is previously stored in said computer and is sent from said computer; and
a reception permission means for enabling control of a display size/position of said display unit by said computer and permitting reception of a control command from said computer for controlling at least the display size/position of said display unit, when said first and second identification information match as a result of the comparison by said comparing means, wherein said communication control circuit enables bi-directional communication with said display unit and said computer.
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16. A display unit for displaying an image based upon a digital image information signal, inputting said digital image information signal from an externally connected computer, comprising:
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comparing means for comparing a first identification information which is previously stored in said display unit, and a second identification information which is previously stored in said computer and is sent from said computer; and
a communication permission means for enabling display control by said computer and permitting communication between said computer and said display unit with respect to display control of said display unit, when said first and second identification information match as a result of the comparison by said comparing means, further comprising a communication controller which enables bi-directional communication with said display unit and said computer.
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17. A display unit for displaying an image based upon a digital image information signal, inputting said digital image information signal from an externally connected computer, comprising:
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comparing means for comparing a first identification information which is previously stored in said display unit, and a second identification information which is previously stored in said computer and is sent from said computer; and
a communication prohibition means for disabling control of said memory means by said computer and prohibiting communication between said computer and said memory means of said display unit, when said first and second identification information do not match as a result of the comparison by said comparing means, further comprising a communication controller which enables bi-directional communication with said display unit and said computer.
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18. A display unit for displaying an image based upon an image signal inputted from an externally connected computer, comprising:
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memory means for storing an identification number for making said computer recognize that said display unit is communicatable with said computer; and
a communication control means for sending said identification number stored in said memory means to said computer, wherein said communication control means enables bi-directional communication with said display unit and said computer.
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19. A display unit for displaying an image based upon an image signal inputted from an externally connected computer, comprising:
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memory means for storing an identification number for making said computer recognize that said display unit is communicatable with said computer; and
a communication control means for sending said identification number stored in said memory means to said computer in response to power on of at least one said display unit and said computer, wherein said communication control means enables bi-directional communication with said display unit and said computer.
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20. A display unit for displaying an image based upon an image signal inputted from an externally connected computer, comprising:
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a memory which stores an identification number for making said computer recognize that said display unit is communicatable with said computer; and
a communication controller connected to said memory which sends said identification number stored in said memory to said computer, wherein said communication controller enables bi-directional communication with said display unit and said computer.
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21. A display unit for displaying an image based upon an image signal inputted from an externally connected computer, comprising:
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a memory which stores an identification number for making said computer recognize that said display unit is communicatable with said computer; and
a communication controller which sends said identification number stored in said memory to said computer in response to power on of at least one of said display unit and said computer, wherein said communication controller enables bi-directional communication with said display unit and said computer.
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22. A method of communicating between a display unit and a video source from which video signals are sent to the display unit for display, the method comprising the steps of:
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communicating display unit information stored in a memory of the display unit from the display unit to the video source, wherein said display unit information includes an identification number for uniquely identifying the display unit; and
sending a signal from the video source to the display unit, wherein said signal is generated based on the display unit information, wherein information is bi-directionally communicated with the video source and the display unit.
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23. A display unit for displaying an image based on an image signal inputted from an externally connected computer, comprising:
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a processor adapted to control display of the display unit;
a memory which stores an identification number; and
a communication controller which sends the identification number stored in said memory to said computer;
wherein said communication controller enables bi-directional communication between said display and said computer. - View Dependent Claims (24)
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25. A display unit for displaying an image based on an image signal inputted from an externally connected computer, comprising:
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a processor adapted to control display of the display unit;
a memory which stores identification information; and
a communication controller which sends the identification information stored in said memory to said computer in response to power on of at least one of said display unit and said computer;
wherein said communication controller enables bi-directional communication between said display and said computer. - View Dependent Claims (26)
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27. A display unit for displaying an image based on an image signal inputted from an externally connected video source, comprising:
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a processor adapted to control display of the display unit;
a memory in which at least display unit information is stored, wherein the display unit information incudes an identification number for identifying the display unit; and
a communication controller capable of bi-directionally communicating with the video source;
wherein the communication controller communicates the display unit information from the display unit to the video source and the display unit receives a signal from the video source that is generated based on the display unit information. - View Dependent Claims (28, 29)
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Specification
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Litigation Data
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Current AssigneeMondis Technology Limited
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Original AssigneeHitachi, Ltd.
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InventorsArai, Ikuya, Kitou, Kouji
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Primary Examiner(s)Dharia, Rupal
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Assistant Examiner(s)PHAN, RAYMOND NGAN
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Application NumberUS09/732,291Publication NumberTime in Patent Office858 DaysField of Search710/101-103, 710/129, 710/62, 710/63-65, 710/72, 710/8-11, 710/14-15, 345/58, 345/98-100, 345/132, 345/204, 709/236, 709/237, 709/249-250US Class Current710/305CPC Class CodesG06F 3/1423 controlling a plurality of ...G06F 3/1446 display composed of modules...G06F 3/153 using cathode-ray tubesG09G 1/167 Details of the interface to...G09G 2360/04 Display device controller o...G09G 2370/04 Exchange of auxiliary data,...G09G 2370/042 for monitor identification
