Patent EP0306208A2 successfully refreshed from Google Patents.
EP0306208A2
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EP
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Method and apparatus for the transmission and/or reception of computer programs and/or data by way of teletext
Assignee: Olivetti SpA
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Filing: 1988-08-24
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Granted: —
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Expires: 2008-08-24
Abstract
Abstract Blocks of digital information for computer programs and/or data are broadcast (30) by way of teletext pages and can be used by computers (43) connected to suitable receivers (40) (telesoftware). The data of one or more pages of the teletext system define in coded form a configuration chapter containing the items of information for access to other teletext pages, the digital information in respect of which constitute a given file of programs and/or data for the receiving computer. The transmission/reception protocol is organised in eight levels of which the lowest two levels are common to the teletext system and concern the apparatus for transmission/reception of the radio signals, and coding/decoding (41) of digital signals extracted from the radio signals and the temporary storage thereof. Other levels of the system are respectively intended to extract from the stored data correct data which are devoid of errors and which are appropriate to the operating environment of the transmission and/or reception apparatus, and to define more chapters forming the file. Finally in the eighth level the transmitted transmissions may be optionally ciphered (35) in accordance with suitable keys to permit reception only by persons who have deciphering apparatus enabled by corresponding deciphering keys.
Inventors
- 👤 Mario Cester
- 👤 Paolo D'amato
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 23:06
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/08; H04N7/087; H04N7/088; H04N7/0888; H04N7/0887
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
99 words
A system of transmission through the air for files with data and/or programs in a teletext environment, in which the teletext transmissions contain digital information constituting teletext pages, characterised in that: - the files are transmitted in accordance with a telesoftware transmission procedure whose parameters are in turn transmitted in a configuration chapter between the teletext pages as configuration data associated with said telesoftware transmission procedure; and in which - said files with data and/or program are taken from the teletext pages in accordance with a telesoftware-taking procedure, the configuration data thereof having been taken from said configuration chapter.
Claim 2
Independent Claim
99 words
A system of transmission through the air for files with data and/or programs in a teletext environment, in which the teletext transmissions contain digital information constituting teletext pages, characterised in that: - the files are transmitted in accordance with a telesoftware transmission procedure whose parameters are in turn transmitted in a configuration chapter between the teletext pages as configuration data associated with said telesoftware transmission procedure; and in which - said files with data and/or program are taken from the teletext pages in accordance with a telesoftware-taking procedure, the configuration data thereof having been taken from said configuration chapter.
Claim 3
Dependent Claim
52 words
A system according to claim 1 characterised in that said configuration chapter comprises file specification data associated with selective modifications of the transmission protocol and that said telesoftware-taking means comprise means which respond to said file specification data for reading the chapters of said file in accordance with the modified transmission procedure.
Claim 4
Dependent Claim
160 words
A transmission and/or reception apparatus for files with data and/or programs in a teletext environment in which the teletext transmissions contain digital information constituting teletext pages characterised by: - formation means for a configuration chapter for forming said chapter with configuration data associated with a specific procedure for telesoftware transmission of the files and for transmitting said chapter as an assembly of one or more teletext pages in a transmission phase or, respectively, by means for access to said configuration chapter, for taking, in a reception phase, the data configuration from the configuration chapter and configuring the receiving unit in accordance with said telesoftware transmission procedure; and - coding means for coding the files in some teletext pages in accordance with said telesoftware transmission procedure in a transmission phase or, respectively, taking means for taking said files from the teletext pages, in accordance with the configuration of the receiving unit associated with the configuration data taken from the configuration chapter.
Claim 5
Dependent Claim
160 words
A transmission and/or reception apparatus for files with data and/or programs in a teletext environment in which the teletext transmissions contain digital information constituting teletext pages characterised by: - formation means for a configuration chapter for forming said chapter with configuration data associated with a specific procedure for telesoftware transmission of the files and for transmitting said chapter as an assembly of one or more teletext pages in a transmission phase or, respectively, by means for access to said configuration chapter, for taking, in a reception phase, the data configuration from the configuration chapter and configuring the receiving unit in accordance with said telesoftware transmission procedure; and - coding means for coding the files in some teletext pages in accordance with said telesoftware transmission procedure in a transmission phase or, respectively, taking means for taking said files from the teletext pages, in accordance with the configuration of the receiving unit associated with the configuration data taken from the configuration chapter.
Claim 6
Independent Claim
179 words
A system for taking files of programs and/or data in air-broadcast teletext transmissions in which said teletext transmissions comprise digital information forming teletext pages and in which the system comprises an apparatus for tuning of the signals of said transmission and an apparatus for decoding of the teletext signals, characterised by organisation of the transmission and the reception at a plurality of rising decoding levels comprising in succession: - masking means for extracting from said teletext signals significant data which are free from errors; - means for detecting errors and for auto-correction of the significant data contained in a given sub-assembly of said blocks, for obtaining correct significant data; - means for transcoding of the correct significant data into data compatible with a predetermined coding; - means for decoding from the predetermined coding of blocks of data belonging to one of said files; - means for taking the protocol for connection of a plurality of blocks of data forming said file; and - optional means for selective control of access to said file in accordance with a deciphering key.
Claim 7
Independent Claim
179 words
A system for taking files of programs and/or data in air-broadcast teletext transmissions in which said teletext transmissions comprise digital information forming teletext pages and in which the system comprises an apparatus for tuning of the signals of said transmission and an apparatus for decoding of the teletext signals, characterised by organisation of the transmission and the reception at a plurality of rising decoding levels comprising in succession: - masking means for extracting from said teletext signals significant data which are free from errors; - means for detecting errors and for auto-correction of the significant data contained in a given sub-assembly of said blocks, for obtaining correct significant data; - means for transcoding of the correct significant data into data compatible with a predetermined coding; - means for decoding from the predetermined coding of blocks of data belonging to one of said files; - means for taking the protocol for connection of a plurality of blocks of data forming said file; and - optional means for selective control of access to said file in accordance with a deciphering key.
Claim 8
Dependent Claim
70 words
A system according to claim 4 characterised in that said files are transmitted in accordance with a telesoftware transmission procedure whose parameters are in turn transmitted in a configuration chapter between the teletext pages as configuration data associated with said telesoftware transmission procedure, and that the telesoftware files are taken from the teletext pages in accordance with a telesoftware-taking procedure associated with the configuration data taken from said configuration chapter.
Claim 9
Independent Claim
134 words
A system for taking files of programs and/or data in air-broadcast teletext transmissions in which said teletext transmissions comprise digital information constituting teletext pages and in which the system comprises an apparatus for tuning of the signals of said transmission and an apparatus for decoding of the teletext signals, characterised by organisation of transmission and reception comprising: - means for detecting errors and for auto-correction of the significant data contained in a given sub-assembly of said blocks, for obtaining correct significant data; - means for storing the correct data independently of the complete definition of the transmission parameters; - means for decoding from said compatible data blocks of data belonging to one of said files; and - means for taking the protocol for connection of a plurality of blocks of data constituting said file.
Claim 10
Independent Claim
134 words
A system for taking files of programs and/or data in air-broadcast teletext transmissions in which said teletext transmissions comprise digital information constituting teletext pages and in which the system comprises an apparatus for tuning of the signals of said transmission and an apparatus for decoding of the teletext signals, characterised by organisation of transmission and reception comprising: - means for detecting errors and for auto-correction of the significant data contained in a given sub-assembly of said blocks, for obtaining correct significant data; - means for storing the correct data independently of the complete definition of the transmission parameters; - means for decoding from said compatible data blocks of data belonging to one of said files; and - means for taking the protocol for connection of a plurality of blocks of data constituting said file.
Claim 11
Independent Claim
165 words
A system for taking files of programs and/or data in air-broadcast teletext transmissions in which said teletext transmissions comprise digital information constituting teletext pages and in which the system comprises an apparatus for tuning of the signals of said transmission and an apparatus for decoding of the teletext signals, characterised by an organisation of transmission of reception which provides: - masking of teletext sides and alternate transmission of the same informative content of a side alternately in clear and masked mode, and/or acquisition of side in clear and masked mode; - a code in clear mode in each side in clear mode or masked, in which there is coded an item of masking information relating to the clear or masking status of said side; - in which acquisition of the data of said side is conditioned by said masking information; and - in which the lines of said sides are provided with error recognition codes for error-free acceptance of the informative content of said side.
Claim 12
Independent Claim
165 words
A system for taking files of programs and/or data in air-broadcast teletext transmissions in which said teletext transmissions comprise digital information constituting teletext pages and in which the system comprises an apparatus for tuning of the signals of said transmission and an apparatus for decoding of the teletext signals, characterised by an organisation of transmission of reception which provides: - masking of teletext sides and alternate transmission of the same informative content of a side alternately in clear and masked mode, and/or acquisition of side in clear and masked mode; - a code in clear mode in each side in clear mode or masked, in which there is coded an item of masking information relating to the clear or masking status of said side; - in which acquisition of the data of said side is conditioned by said masking information; and - in which the lines of said sides are provided with error recognition codes for error-free acceptance of the informative content of said side.
Claim 13
Independent Claim
115 words
A system for taking files of programs and/or data in air-broadcast teletext transmissions in which said teletext transmissions comprise digital information constituting teletext pages and in which the system comprises an apparatus for tuning of the signals of said transmission and an apparatus for decoding of the teletext signals, characterised by organisation of transmission and reception, comprising an error recognition code contained in each of the lines of the teletext pages which are associated with said files and means responsive to said error recognition code for detecting the errors in the individual line or in a group of lines of the teletext page for receiving in a second acquisition only the line with an error.
Claim 14
Independent Claim
115 words
A system for taking files of programs and/or data in air-broadcast teletext transmissions in which said teletext transmissions comprise digital information constituting teletext pages and in which the system comprises an apparatus for tuning of the signals of said transmission and an apparatus for decoding of the teletext signals, characterised by organisation of transmission and reception, comprising an error recognition code contained in each of the lines of the teletext pages which are associated with said files and means responsive to said error recognition code for detecting the errors in the individual line or in a group of lines of the teletext page for receiving in a second acquisition only the line with an error.
Claim 15
Dependent Claim
52 words
A system according to claim 8 characterised by a code for auto-correction of the significant data contained in said line or in said group of lines and means responsive to said auto-correction code for obtaining correct significant data in the presence of errors in the significant data or in the auto-correction code.
Claim 16
Independent Claim
89 words
A system for taking files of programs and/or data in air-broadcast teletext transmissions in which said teletext transmissions comprise digital information constituting teletext pages and in which the system comprises an apparatus for tuning of the signals of said transmission and an apparatus for decoding of the teletext signals, characterised by organisation of transmission and reception comprising: - means for decoding from the teletext signals blocks of data constituting sides of files, and, - means for detecting the protocol for connection of a plurality of chapters constituting said file.
Claim 17
Independent Claim
89 words
A system for taking files of programs and/or data in air-broadcast teletext transmissions in which said teletext transmissions comprise digital information constituting teletext pages and in which the system comprises an apparatus for tuning of the signals of said transmission and an apparatus for decoding of the teletext signals, characterised by organisation of transmission and reception comprising: - means for decoding from the teletext signals blocks of data constituting sides of files, and, - means for detecting the protocol for connection of a plurality of chapters constituting said file.
Claim 18
Independent Claim
180 words
A system of transmission through the air for files with data and/or programs in a teletext environment in which the teletext transmissions contain digital information constituting teletext pages characterised in that: - said files are transmitted between the teletext pages in accordance with a specific telesoftware transmission procedure which provides for sending said files as an assembly of sides, in which each side contains informative codes of the files and check codes in respect of the informative codes and in which acceptance of the informative codes is conditional upon compatibility of the check codes received with the check codes generated locally in response to the informative codes received and characterised in that the informative codes of each side can be re-transmitted by means of a masking operation such as to reduce the errors due to critical sequences of said informative codes and each side provides a predetermined location in which there is transmitted in clear mode a masking code representative of the transmission mode, respectively in the clear or the masked mode, with which said informative codes have been transmitted.
Claim 19
Independent Claim
180 words
A system of transmission through the air for files with data and/or programs in a teletext environment in which the teletext transmissions contain digital information constituting teletext pages characterised in that: - said files are transmitted between the teletext pages in accordance with a specific telesoftware transmission procedure which provides for sending said files as an assembly of sides, in which each side contains informative codes of the files and check codes in respect of the informative codes and in which acceptance of the informative codes is conditional upon compatibility of the check codes received with the check codes generated locally in response to the informative codes received and characterised in that the informative codes of each side can be re-transmitted by means of a masking operation such as to reduce the errors due to critical sequences of said informative codes and each side provides a predetermined location in which there is transmitted in clear mode a masking code representative of the transmission mode, respectively in the clear or the masked mode, with which said informative codes have been transmitted.
References Cited (Backward Citations)
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