Method and apparatus for control of hard copying of document described in hypertext description language
AssigneeFujitsu Limited
InventorTadashi Ohashi
Life of this patent
Estimating the term…
Abstract
A system of copying a digital document easily maintains the security of the contents of the screen display of, for example, a Web page of the Internet displayed on, for example, a display unit. Tag information indicating the prevention of copying of a screen is included in the hypertext in which a document from a server is described. On the client side, browsing software for actually performing a screen-display using the document interprets the tag information in the hypertext, and prevents making of a copy of the screen when a user issues a request to make a copy of the screen.
Claims27
A method of controlling hard copying when a request is issued to make a hard copy of a document described in a hypertext description language on a display screen of a display unit of a computer terminal using a browsing software, comprising:
- interpreting first tag information contained in a hypertext in which the document is described;
- outputting a warning message about making a hard copy based on an interpretation result of the first tag information;
- interpreting second tag information contained in the hypertext in which the document is described;
- and
- preventing the hard copying based on an interpretation result of the second tag information.
A method of controlling hard copying of a document described in a hypertext description language, comprising:
- interpreting tag information, contained in a hypertext in which a screen display of the document is described, indicating either prevention of hard copying of the screen display or displaying of a warning message about making a hard copy;
- performing control of preventing hard copying of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy;
- and
- performing control of displaying a warning message about making a hard copy based on an interpretation result of the tag information when a user issues a request to make a hard copy.
An apparatus for controlling a screen display of a document described in a hypertext description language, comprising:
- an interpretation unit interpreting tag information, contained in hypertext in which a screen display of the document is described, indicating either prevention of hard copying of the screen display or displaying of a warning message about making a hard copy;
- a first control unit performing control of preventing hard copying of the screen display based on an interpretation result from said interpretation unit when a user issues a request to make a hard copy;
- and
- a second control unit performing control of displaying a warning message about making a hard copy based on an interpretation result from said interpretation unit when a user issues a request to make a hard copy.
A computer-readable storage medium storing a browsing software used to direct a computer to display a document described in a hypertext description language, said browsing software stored in the storage medium comprising:
- directing the computer to interpret first tag information indicating prevention of hard copying of a screen display and second tag information indicating displaying of a warning message about making a hard copy, said first and second tag information being contained in hypertext in which a screen display of the document is described;
- directing the computer to prevent hard copying of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy;
- and
- directing the computer to display a warning message about making a hard copy of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy.
A computer-readable storage medium storing control software for controlling execution of a computer with browsing software used to direct the computer to display a document described in a hypertext description language, said control software stored in the storage medium comprising:
- directing the computer to interpret first tag information indicating prevention of hard copying of the screen display and second tag information indicating displaying of a warning message about making a hard copy, said first and second tag information being contained in hypertext in which a screen display of the document is described;
- directing the computer to prevent hard copying of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy;
- and
- directing the computer to display a warning message about making a hard copy of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy.
A computer-readable storage medium for storing document written in a hypertext description language for describing a screen display of the document, said document comprising:
- first tag information, being interpreted by a computer, directing the computer to prevent hard copying of the screen display from a request to make a hard copy;
- and
- second tag information, being interpreted by a computer. directing the computer to display a warning message about making a hard copy against a request to make a hard copy.
A system having a server containing a plurality of documents described in a hypertext description language, and a client containing a browsing software, connected to the server through a network, for requesting the server to access the documents and for screen-displaying a document transmitted from the server, said system controlling screen-displaying of a document described in a hypertext description language, and comprising:
- an including unit including, in hypertext in which a screen display of the document in the server is described, tag information indicating either prevention of hard copying of the screen display performed by executing browsing software or displaying of a warning message about making a hard copy;
- an interpretation unit interpreting the tag information in hypertext in which the screen display of the document is described;
- a first control unit controlling preventing hard copying of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy;
- and
- a second control unit controlling displaying a warning message about making a hard copy based on an interpretation result of the tag information when a user issues a request to make a hard copy.
Browsing software embodied on a transmission medium and used to direct a computer to display a document described in a hypertext description language, said browsing software comprising the operations of:
- directing the computer to interpret first tag information indicating prevention of hard copying of a screen display and second tag information indicating displaying of a warning message about making a hard copy, said first and second tag information being contained in hypertext in which a screen display of the document is described;
- directing the computer to prevent hard copying of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy;
- and
- directing the computer to display a warning message about making a hard copy of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy.
Control software embodied on a transmission medium and for controlling execution of a computer with browsing software used to direct the computer to display a document described in a hypertext description language, said control software comprising the operations of:
- directing the computer to interpret first tag information indicating prevention of hard copying of the screen display and second tag information indicating displaying of a warning message about making a hard copy, said first and second tag information being contained in hypertext in which a screen display of the document is described;
- directing the computer to prevent hard copying of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy;
- and
- directing the computer to display a warning message about making a hard copy of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy.
A document data embodied on a transmission medium and written in a hypertext description language for describing a screen display of the document, said document data comprising:
- first tag information, being interpreted by a computer, directing the computer to prevent hard copying of the screen display from a request to make a hard copy;
- and
- second tag information, being interpreted by a computer, directing the computer to display a warning message about making a hard copy against a request to make a hard copy.
A computer data signal embodied in a carrier wave and representing browsing software used to direct a computer to display a document described in a hypertext description language, said browsing software comprising the operations of:
- directing the computer to interpret first tag information indicating prevention of hard copying of a screen display and second tag information indicating displaying of a warning message about making a hard copy, said first and second tag information being contained in hypertext in which a screen display of the document is described;
- directing the computer to prevent hard copying of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy;
- and
- directing the computer to display a warning message about making a hard copy of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy.
A computer data signal embodied in a carrier wave and representing control software for controlling execution of a computer with browsing software used to direct the computer to display a document described in a hypertext description language, said control software comprising the operations of:
- directing the computer to interpret first tag information indicating prevention of hard copying of the screen display and second tag information indicating displaying of a warning message about making a hard copy, said first and second tag information being contained in hypertext in which a screen display of the document is described;
- directing the computer to prevent hard copying of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy;
- and
- directing the computer to display a warning message about making a hard copy of the screen display based on an interpretation result of the tag information when a user issues a request to make a hard copy.
A computer data signal embodied in a carrier wave and representing a document written in a hypertext description language for describing a screen display of the document, said document comprising:
- first tag information, being interpreted by a computer, directing the computer to prevent hard copying of the screen display from a request to make a hard copy;
- and
- second tag information, being interpreted by a computer, directing the computer to display a warning message about making a hard copy against a request to make a hard copy.
A method of controlling hard copying when a request is issued to make a hard copy of a document described in a hypertext description language on a display screen of a display unit of a computer terminal using a browsing software, comprising:
- interpreting first tag information contained in a hypertext in which the document is described;
- outputting a warning message about making a hard copy based on an interpretation result of the first tag information;
- interpreting third tag information contained in the hypertext in which the document is described;
- specifying a file which stores data of hard copying records of the document based on an interpretation result of the third tag information;
- and
- obtaining hypertext, in which the document is described and the first, second and third tag information are contained, from an external computer connected to the computer terminal through a communications circuit.
A method comprising:
- outputting a warning message about making a hard copy, if a first tag information is found in a file;
- and
- preventing hard copying of a portion of the file, if a second tag information is found in the file.
A computer readable storage medium storing a program to instruct a computer to perform:
- outputting a warning message about making a hard copy, if a first tag information is found in a file;
- and
- preventing hard copying of a portion of the file, if a second tag information is found in the file.
Dependencies are inferred from the claim text.