FR2839598A1 - Radio/television user information access dependent transmission detecting/recording transmission signal hyperlinks and selecting internet hyperlink from those recorded - Google Patents

Abstract

The information access process has hyperlinks (HP) to transmission signals (CHn). The hyperlinks are detected and recorded and the equipment transmission signal selected. Internet hyperlinks are selected from amongst the recorded hyperlinks.

Description

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  Access to information dependent on a radio or television broadcast The present invention relates generally to the access of a user to brief information gathered during a radio broadcast received by a radio station or during a television program received by a television in order to later consult the information more

lo detail.

  Currently, there is no way for a user, such as a listener or viewer, to efficiently locate brief information of interest during a radio or television broadcast and to memorize it for use subsequently. For example, when the host of a program reports a book, a movie or more generally a product or service of interest to a listener or viewer, the latter must very quickly memorize it for example, then enter a notepad and record this information as it is relatively short, which

generates errors.

  The main objective of the present invention is to remedy the drawbacks of a memorization and a real reading of information by a user during a transmission, in order to be able to further process the information depending on

['program listened to or watched.

  To achieve this objective, a method for accessing information dependent on a transmission in the transmission signal of a program channel

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  selected in a receiving equipment, is characterized according to the invention in that it comprises the following stages: - previously incorporation at least of a hyperlink linked to information in the emission signal, - then detection and recording of hyperlinks at the most tempt that the emission signal is selected in the equipment, lo - and later, selection of hyperlinks

  of interest among the registered hyperlinks.

  Thanks to the recording of a hyperlink dependent on the information and detected during the broadcast of the broadcast signal, the information to which the user wishes to access and briefly contained in the hyperlink can be processed subsequently by the '' user without memorizing and / or

  note the information during the program.

  By "later" is meant a selection of hyperlinks of interest and a processing of these hyperlinks of interest by the user, either immediately after their respective detections, or after a few hours or a few days following the emissions containing the hyperlinks. For example, when the user has identified a product that interests him in an advertising spot, the user obtains more precise information on the product in question by consulting data contained in the detected hyperlink. In this regard, a hyperlink can contain a type of information identifier, an information identifier and a data field linked to the information to be accessed. The identifier in the hyperlink can indicate an address or characteristics of an emisslon signal subsequent to the emission signal containing the hyperlink, i.e.

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  relating to the programming of a next program to listen to in a radio station or to watch in a television. For example, the hyperlink has a direct link with the product or service selected by the user in the context of a tele-purchase or tele

reservation for a show.

  In order to temporarily identify the detected hyperlinks, recorded wind time stamping data

with the hyperlink detected.

  o According to an embodiment concerning a real-time tracking of hyperlinks during the broadcasting of a broadcast signal of a program chain, the method comprises the following steps: detection of a marking command by a user in the equipment and generation of a time marker by the equipment in response to the marking command so that hyperlinks of interest are subsequently selected from the hyperlinks recorded substantially at times close to the recording of the time marker. As a variant, the detection and recording of at least one hyperlink consists at least in a succession of the following steps: detection of a marking command by a user in the equipment, generation of a time marker by the equipment in response to the command for marking, and detection and recording of the hyperlink in the emission signal for a duration of monitoring of hyperlink predetermined in response to the marker

temporal generation.

  According to other aspects of the invention, each hyperlink can only contain, or contain inter alia, a document address in a server in order to obtain more complete information. Each hyperlink can also contain a duration of - -

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  respective backup during which the hyperlink

  is saved since it was saved.

  The invention also relates to a device implementing the access method according to the invention for accessing information dependent on a transmission in the transmission signal of a selected program channel in a receiving equipment. The device is characterized in that it comprises a means for detecting at least one hyperlink incorporated in the emission signal and linked to the information that the emission signal is selected in the equipment, a means for recording the detected hyperlinks, and a means for subsequently selecting relevant hyperlinks

among the registered hyperlinks.

  Preferably, the device comprises means for detecting and recording a time marker generated by the equipment in response to a user marking command detected in the equipment, or as a variant comprises means for detecting at least one hyperlink in the emission signal received by the equipment for a predetermined duration following a detection of a time marker generated by the equipment in response to a user marking command detected in the equipment, which avoids recording all hyperlinks during a broadcast. Other characteristics and advantages of the present invention will appear more clearly on

  reading the following description of several

  preferred embodiments of the invention with reference to the corresponding accompanying drawings in which: - Figure 1 is a schematic block diagram of a hyperlink processing device in a terminal user installation comprising several receiving devices, according to the invention ; and - Figure 2 is an algorithm for accessing a hyperlink implemented according to the invention in the device of Figure 1.

  In the following description, the term

  "chain" means either a channel or a flight channel to broadcast a sound broadcasting program or a television program,

  and the program company broadcasting the said program.

  The term "program" means a series of radio and television broadcasts, also known as magazines broadcast by

a specific chain.

  Compared to a conventional definition, the term "hyperlink" according to the invention is an object imperceptibly and invisible incorporated into a sound or television broadcast signal transmitted by a chain and contains brief digital information which can be recorded. and read to give later access to a more complete format on a product or service linked to the program. An HP hyperlink according to the invention is composed of a few tens of numeric characters which can be divided essentially into three fields: a type of identifier TYP, an identifier ID, and a

DATA field.

  The type of identifier TYP indicates that the identifier ID is for example an address of a document saved in a web server SV, such as a URL address (Universal Resource Locator). The document contains information on a subject or a

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  theme presented in the program containing the hyperlink, or on a product, such as an article presented during an advertisement or a book cited in a program. The type of identifier indicates, according to another example, that the identifier relates to another program with its date and time of programming in order to program a reception station or a video recorder or a tape recorder and thus receive the program having a link with ['emission o containing the hyperlink HP, [' emission being for example the following sequence of a telefilm. The DATA data field contains one or more keywords representative of the theme of the program including the hyperlink, and / or a title of the program during which the HP hyperlink was detected, and / or information on products or services cited in the program, such as the title of a singer's compact disc, the title of a book and its references, the URL of a site relating to a geographic area presented in [' program, timestamp data such as date, start time and duration linked to a program or film presented

  in the mission containing the hyperlink.

  Preferably, the HP hyperlink also contains two fields dedicated to a duration of activity DA expressed in seconds and a duration of backup DS expressed

in hours and minutes.

  The duration of activity DA of an HP hyperlink indicates that it can be systematically memorized temporarily following the detection of the hyperlink in order to avoid a periodic introduction of the hyperlink into the emission signal, for example all thirty seconds or every minute, for the entire duration of the program, including

  brief wind information contained in the hyperlink.

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  For example, the hyperlink relating to an advertising spot which lasts two minutes, is incorporated at the start of the advertising spot and contains in the field DA the number "120" seconds in order to avoid repeating the hyperlink several times during the advertising spot. , for example every thirty seconds

or every minute.

  The DS backup duration indicates the duration for which an HP hyperlink deemed as the HPI hyperlink of interest by a user can be saved temporarily; in the absence of use of this hyperlink of interest, for example by activating the URL address which it contains or by transferring it, as will be seen below, the hyperlink of interest HPI is erased at the expiration of the duration DS backup. The DS backup duration is determined by the provider of the service or product to which the hyperlink is linked, for storage constraints, or by the program company having broadcast the program containing the hyperlink, or even by the 'operator issuing the program containing the hyperlink. The duration DS can

  vary from a few hours to two or three days.

  According to a variant reducing the length of a hyperlink and therefore the load of the transmission signal, a hyperlink no longer contains the trots fields TYP, ID and DATA, but only a URL address of the document in the web server SV which will be read in real time or later differed after the broadcast of the program by a hyperlink processing device described below. The shortened hyperlink can also contain the duration of activity

DA and / or the DS backup duration.

  A hyperlink in a broadcast signal is inserted periodically, for example every twenty

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  or thirty seconds or every minute. For a frequency-modulated (FM) sound broadcasting channel, a hyperlink is incorporated in the channel's broadcast signal, such as the PS (Program Service Name) code for the RDS (Radio Data System) system or in the channel DARC (DAta Radio Channel). For a sound broadcasting chain broadcasting in Small Waves or Large Waves, the hyperlinks are incorporated into an emission by brief cut of the audio signal. For an analog television channel broadcast by radio, each hyperlink is inserted, like a data packet, into the active duration of one of the free lines in the blanking interval of a television signal. For a digital television channel broadcast by radio, or via the Internet, hyperlinks are inserted in the service vote for a digital video signal DVB (Digital Video Broadcasting) according to the MPEG-2 standard, for example in the information table KIT (Event Information Table) events. According to another embodiment, the HP hyperlinks constitute a descriptive marking of a multimedia document such as a television program, according to the language SMIL (Synchronized Multimedia Integration Language), version 2; the descriptive marking is represented for example by an icon temporarily inserted in broadcast images

and is selectable by the user.

  With reference to FIG. 1, an IT user terminal installation comprises N receiving equipment EQ1, ... EQn, ... EQN with 1 <n <N. For example, one EQ1 of the equipment is a broadcasting receiver sound capable of receiving selectively broadcast signals from multiple channels

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  CH1 sound broadcasting (stations). Another EQn equipment is a personal computer (PC), for example connected to a packet network of the internet network type, or connected to a cable network for distribution of television program and / or sound broadcasting programs, in particular for receiving line of the signals of emission of several chains of sound broadcasting and television CHni. A final piece of equipment EQN is a television receiver lo which is, for example, provided with means for receiving broadcast signals from CHN television channels to receive predetermined television programs and equipped with one or more decoders for receiving broadcast signals. television broadcast transmitted via satellite and / or via cable network

of distribution.

  Figure 1 also shows schematically the telecommunications system surrounding the IT user terminal installation. In particular, the RD and TR markers respectively designate one or more networks for the distribution of program broadcast signals for sound and television broadcasting and one or more network celebrations for broadcasting signals and managed by different companies of

  audio broadcast and television program.

  The set of RD dlstrlbutlon networks includes in particular analog and / or digital broadcasting networks to broadcast emlsslons capable of being received by the radio receiver EQ1, cable, radio (terrestrial) analog and digital networks, by satellite in analog and digital modes to broadcast telisslslon and possibly sound radio emisslon signals likely to be received by

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  the EQN television receiver. All the RD distribution networks also include the internet network through which the computer EQn is capable of receiving radio and / or television broadcast signals broadcast by certain companies.

of program.

  In the context of the invention, the equipment EQ1 to EQN is connected through a distributed bus BU to a device for processing a DTH hyperlink in the IT installation. As a variant, all or part of the BU bus can be replaced by a proximity radio link of the Bluetooth type or according to the 802.11b standard. The DTH device essentially comprises a central processing unit for hyperlink UT constituted by a microcontroller connected to various peripherals such as specific memory trots MUT, MUS and MH described below, a communication interface IC and optionally a keyboard and a screen. As a variant, the DTH device is integrated into the computer EQn. According to another variant, when the IT installation only comprises a single receiver equipment EQ1, or EQn, or EQN, the

  DTH device is included in the single equipment.

  The DTH hyperlink processing device can constitute or be associated with a basic module which can serve various home automation equipment such as those illustrated in FIG. 1 as well as one or more mobile telephones and radiotelephones, an alarm center, etc. . The communication interface IC is adapted to a telecommunications link LT connected to an access network RA of the IT installation. The link LT and the network RA can conventionally be a telephone line and the telephone network switches PSTN itself connected to a network of

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  Internet broadband RP packet transmission. According to other variants, the telecommunications link LT is an xDSL line (Digital Subscriber Line) or an ISDN line (Digital Network with Integration of Services) connected to the corresponding access network, or a radio channel in a cellular radiotelephony network. . The link LT can also be confused with one of the links serving one EQn of the equipment through one

RD distribution networks.

  According to another variant, the features of the device it if DTH are included in a DVB-MHP platform (Digital Video Broadcasting Multimedia Home Platform), or one of its equivalents, for which the telecommunications link LT is asymmetrical with a flight back at low speed to the network

RA access.

  Prior to any hyperlink processing in the DTH device according to the invention, it is preferable to execute initial steps E01 to E03 in order to define the context of use relating to the equipment and chains and the context of user relating to the use by one or more users of each piece of equipment and to record these contexts in the MUT and MUS memories. It will be assumed below that the IT terminal installation comprises several pieces of equipment EQ1 to EQN each capable of receiving programs from one or more channels CH1i to CHNi and of being used each by one or more users. In step E01, a US user, considered to be a "maltre", such as one of the parents of a family, identifies the equipment EQ1 to EQN through which the hyperlink treatment must be carried. Through

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  for example, this equipment supplies one or more sound broadcasting receivers, one or more television receivers, one or more personal computers, one or more video recorders capable of receiving programs in analog and / or digital mode. Thus, a piece of equipment designated by EQn is identified by an IEQn identifier read on the equipment and entered through the processing unit UT to write it in

  lo the MUT usage context memory.

  In an automatic variant, the MUT usage context table is completed by the correspondence between the identifier of an EQn equipment and the identifiers of the strings that can be received by it, in the MUT memory under the command of the unit. UT each time the EQn equipment is connected to the BU bus in response to an interrogation

periodical of the UT unit.

  In the next preliminary step E02, the user maltre associated with each equipment EQn designated by the identifier IEQn one or more respective chain identifiers designated together by CHn whose programs can be received by the equipment, the same chain can be received by several equipments. The MUT usage context memory stores a table matching the identifiers IEQ1 to IEQN of the equipment EQ1 to EQN

  has chain sets CH1 to CHNi.

  Having assumed that the equipment EQ1 to EQN is already preset to receive respective predetermined channel programs, the identifier of a chain falling within the definition of a pair of equipment EQ-chain CH is defined in the manner

  next for the different program channels.

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  For television channels broadcast by radio, the channel identifier CH can include or can be a respective "digital guide" for each country, for example entered on the remote control of a television receiver, accompanies the case if necessary of an assigned name by the corresponding user. In practice, the user selects a determined channel in the equipment, such as the EQN receiver, and validates this selection in the UT processing unit 0 so that it writes in the MUT memory the correspondence between the identifier d IEQN equipment and CH identifier including guide number and assigned name. According to another variant, the UT unit offers the user the list of guide numbers with the name of the corresponding channels and the user selects the channels whose programs are likely to be received by the EQN equipment in order to to write this list of CHN chalnes in correspondence with the identifier

IEQN in the MUT memory.

  For FM sound broadcasting channels, the CH channel identifier may be the PS (Program Service name) code for the Radio Data System (RDS). The CH identifiers of the FM radio channels are then valid in a manner analogous to the naming above.

television channels.

  For the other sound broadcasting channels broadcasting in Small Waves and Large Waves, the user saves the corresponding frequencies with the name of the radio channels by the UT processing unit in the MUT memory. In a manner analogous to the selections above, the user US selects a radio station in the radio receiver equipment EQ1, associates a determined name if

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  is not already assigned and validates this selection by means of a key on the radio receiver remote control for example, or by a voice command when the EQ1 equipment is equipped with a voice recognition means. For sound or television broadcasting channels whose programs are broadcast over the Internet, the US user enters the URL (Uniform Resource Locator) address of each channel in association with a name to do so.

  correspond to the equipment identifier EQ1.

  As a variant, the processing unit UT downloads a directory of URL addresses of channels from a server SV of the network RP so that the user selects these in correspondence with the identifiers of the equipment likely to receive the programs.

of these chalnes.

  If the user becomes nomadic and wishes to continue a specific transmission, for example from the EQ1 radio receiver at his home to the radio connected to a mobile radiotelephone in his vehicle, it is preferable that the content of the MUT context of use and other memories either stored in a servour of the access network RA, or else in a server of the network RP in correspondence with an identifier of the user, such as the telephone number or the IP address of the user. The server can control not only equipment of the IT user terminal installation but also other equipment outside this installation, including mobile cellular radiotelephones and equipment in a

second home.

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  The context of use defined above is open to users other than the "master" user, such as family members or passing visitors. Associating an item of equipment with one or more users allows users to roam. A user finds his user context in other contexts of use, limited by the variety of equipment available in other places such

  than a vehicle and a vacation home.

  o In the optional preliminary step following E03, the user "maltre" introduced into the memory of the user context MUS via the processing unit UT of the IUS identifiers of several users possibly associated with MPUS passwords in i5 association each with one or more

  respective equipment identifiers IEQ1 to IEQN.

  When a user wishes to use at least one of the respective equipment, he indicates his identity by the IUS identifier and the MPUS password by entering them on a keyboard or a remote control of the equipment. The central unit authorizes the user to select channel identifiers received by the equipment only if the user identifier and the password entered are respectively identical 2s to ccux read in the MUS memory and if the equipment identifier is associated with the equipment identifier

the user in the MUS memory.

  To access brief information in the form of at least one hyperlink incorporated in a signal of emission of a chain CHni received by an equipment EQn, the method of accessing the invention comprises steps E1 to E9 for a different hyperlink selection mode, and additional steps E10 to E13 or E14 for a selection mode

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  real-time hyperlink, as shown in figure 2. The UT hyperlink processing unit is thus designed to operate in different selection mode or in real-time selection mode, or else the user can select in a Main Menu

  one of the two modes that are managed by the UT unit.

  When an EQn equipment is put into operation which can be carried out at the level of the equipment itself, or via the UT processing unit which displays to the user a list of equipment among which the EQn equipment is to choose, the UT unit verifies that the US user is authorized to use the EQn equipment. After validation of the correspondence between the IUS identifier and the user's MPUS password in the MUS context memory and those entered by the user, the UT unit does not confirm the processing of hyperlinks retransmitted by the equipment EQn selected by the user only when the IEQn identifier of this equipment belongs to the list of identifiers correspond to

  the IUS identifier of the user US, in step E1.

  Sets of the following steps E1 to E9 can be managed simultaneously by the UT unit for several pieces of equipment in operation by detecting hyperlinks transmitted by the pieces of equipment in the

BU bus.

  After step E1, the unit UT controls the display of the list of identifiers CHni of the channels which are likely to be received by the equipment EQn so that the user selects a determined channel CHn in step E2. This selection can be made either directly on the EQn equipment, or on the hyperlink processing device

DTH via the BU bus.

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  Regardless of the delayed or real-time selection mode imposed on the UT processing unit or selected by the user in steps E4 and E10, the UT processing unit detects all of the hyperlinks incorporated in the transmission signal CHn received by EQn equipment and retransmitted through the BU bus, in step E3. Each time an HP hyperlink is detected, the processing unit UT writes to the hyperlink memory MH the hyperlink detected with lo time stamp data HD in correspondence with the user identifier IUS. HD timestamp data includes the date and time expressed in minutes from the moment of detection of

the hyperlink detects HP.

  Preferably, the identifier IEQn of the selected equipment EQn and the identifier CHn of the selected channel are recorded in correspondence with the hyperlink recorded HP and

  the user identifier IUS in the memory MH.

  For a different selection of hyperlink, as indicated in step E4, if the user decides to change the channel of transmission or to select another equipment in step E5 or E6, the MH memory records the hyperlinks detected in another program selected and received by the other equipment selected in step E4. Several receiving devices among the EQ1 to EQN devices can operate in parallel independently of each other. Then later for the deferred selection mode, after steps E5 and E6, a few hours or a few days after watching or listening to the program whose HP hyperlinks have been recorded in the MH memory, the user decides to consult the hyperlinks saved in step E7 naturally

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  before the DS backup times respectively associated with the registered hyperlinks have expired. In the absence of consultation of a hyperlink during the respective backup duration DS succeeding its recording in the memory MH, the hyperlink is systematically erased from the memory MH at the expiration of the respective backup duration which

  is signaled to the user before deletion.

  If the user expresses his interest for certain o recorded hyperlinks, after having consulted in particular their DATA data fields or, as a variant, having consulted data read in SV servers according to URL addresses contained in the registered hyperlinks, he saves to the step E8

  the hyperlinks of interest HPI in the memory MH.

  Each hyperlink of interest is kept in the memory MH until the expiration of yet another respective backup duration DS, the expiration of which is systematically signaled to the user. Otherwise, the hyperlink of interest is deleted, as shown in step E93, if it has not been consulted again.

for the duration DS.

  As indicated in step E9, if the backup duration has not expired, the user uses an hyperlink of HPI backup interest for example to activate a URL address read in the DATA field of the HPI hyperlink or in the ID field of the HP hyperlink ID, or to transfer the hyperlink to another memory or

  other terminal, as shown in steps E91 and E92.

  After these operations, the HPI interest hyperlink is

clears in MH memory.

  The search for a hyperlink in step E7 after the broadcast of the emission signal containing the hyperlink makes it possible to consult a

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  information concerning the program that the user could not directly consult during this program. For example, if the user had been interested the day before by a compact disc whose advertising was broadcast, without remembering the title, the user consults in step E7 the hyperlinks recorded the day before, including the HD time stamp data correspond substantially to the time range of the emission defined by the user, possibly for a given chain CHn. The user finds in the list of hyperlinks thus defined an HP hyperlink with the title of the compact disc, which allows him for example to access more complete information on the compact disc by calling the server of the editor of the compact disc. according to the URL address contained in the hyperlink. The HD time stamp data associated with the hyperlink HP as well as the identifiers IEQn and CHn associated with the hyperlink contribute to more easily locate the brief information sought in the list recorded in the memory MH and displayed for example via the screen. of

the personal computer EQn.

  According to the type of identifier TYP contained in the hyperlink, the activation of the hyperlink of interest HPI can lead to the consultation of a servour whose URL address is contained in the hyperlink or to program the equipment, such as a VCR or television, that has received the broadcast signal containing the hyperlink that identifies an upcoming broadcast to watch or listen to. In another example, activation involves dialing a telephone number, such as a toll-free number, from a distributor of the product or service listed in the hyperlink. For example, the product can be a

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  book and service a reservation offer for a show. Depending on the programming of the UT hyperlink processing unit by the user, the transfer of a hyperlink of HPI interest to step E92 can be manual or automatic. For example, the transfer of the hyperlink of interest HPI is directed to an e-mail address of the user or to an electronic agenda with an alarm in a personal computer or a personal digital assistant (PDA) for example also related to BU bus, or to a

  determined user disk space.

  Returning to step E3, if the hyperlink processing unit UT operates in selection mode in real time or if the user has selected this mode in steps E4 and E10, the user triggers a marking command CMn in the equipment EQn, in step E11, each time a passage of interest in a program watched or listened to the interested party, the user ignoring the instants of reception of the imperceptible and invisible hyperlinks in

EQn equipment.

  The marking command CM1 to CMN is adapted to the type of equipment EQ1 to EQN. When the EQ1 equipment is a radio receiver, the CM1 marking command is pronounced by a word predetermined by the user US if the EQ1 equipment is equipped with a voice recognition means, or by a specific button on the equipment EQ1. When the EQn equipment is a personal computer, the CMn marking command is generated using the SR mouse or the equipment keyboard by selecting with the cursor a particular icon displayed for example in a corner of the screen of the EQn equipment. When EQN equipment

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  is a television, the CMN marking command is for example generated by the TC remote control in response to the pressing of a predetermined key of

marking command.

  In response to the marking command CMn, the equipment EQn generates a time marker MKn in the form of a predetermined digital word, for example containing the identifier IEQn, which is mixed with the transmission signal CHn in the bus BU. The processing unit UT detected in the bus BU, at step E12, the time marker MKn, and writes it in the memory MH in correspondence with time stamping data HD, the identifier IEQn of the equipment EQn having received the transmission signal containing the hyperlink, as well as the transmission identifier CHn for the user designated by the identifier IUS. In the memory MK, the marker MKn is written in chronological order with the hype LR iens HP detected in the transmission signal CHn, as already specified in step E3 which takes place constantly between the steps E2 and E5. As indicated in step E13, any other CMn marking command by the user

the execution of steps E11 and E12.

  As for the deferred selection mode, after step E13 of the real-time selection mode, the user can change channels in step E5 or

of equipment in step E6.

  Subsequent to step E7, an MKn marker is searched for among the markers recorded in the MH memory and displayed in the DTH device as a function of the approximate time memorized by the user compared to the timestamp data associated with the markers. The registered hyperlink (s) with time stamp data

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  substantially close to those of the wind search marker then consulted by the user in step E8 in order to save hyperlinks of HPI interest, and

  continue the process with step E9.

  As a variant, in order to reduce the size of the memory MH by detected hyperlinks HP, a step E14 is added between steps E12 and E13 and replaces step E3, as shown in dashed lines in dots in FIG. 2. At step E14, the processing unit UT detects all the hyperlinks HP contained in the selected emission signal CHn, only for a predetermined duration of monitoring of hyperlinks DP following the detection of the time marker MKn. The HP hyperlinks detected during the predetermined period of time are recorded in the

  MH memory in step E14, as in step E3.

  If the duration of DA activity of a hyperlink, when it is contained therein, at least overlaps the predetermined duration DP, the hyperlink is detected and recorded. For example, if an HP hyperlink was detected a few seconds before the start of the predetermined duration DP, this hyperlink is saved in the memory MH if its duration of activity DA expires after the start of the duration DP; Indeed, the UT unit temporarily maintains in its own memory the active hyperlink until the expiration of its

duration of activity DA.

  Later, in step E7, hyperlinks of interest HPI are searched during their respective backup durations among the hyperlinks previously registered only during the durations

predetermined DP monitoring.

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Claims (13)

  1 - Method for accessing information dependent on a transmission in the transmission signal of a selected program channel in a receiving equipment, characterized in that it comprises the following stages: - previously incorporation of at least one hyperlink (HP) links to information in the emission signal (CHn), - then detection and recording (E3) of hyperlinks as soon as the emission signal is selected in the equipment, - and subsequently, selection (E8) d of interest (HPI) among registered hyperlinks (HP). 2 Method according to claim 1, according to which time stamp data (HD) is   recorded with the detected hyperlink (HP).   3 - Method according to claim 1 or 2, comprising the following steps: detection (E11) of a marking command (CMn) by a user in the equipment (EQn) and generation (E12) of a time marker ( MKn) by the equipment in response to the marking command so that hyperlinks of interest (HPI) are subsequently selected (E8) from the hyperlinks (HP) recorded substantially at times close to   recording the time marker (MKn).   4 - Method according to claim 1 or 2, according to which the detection and recording of at least one hyperlink consists of at least one 24 2839598   succession of the following steps: detection (E11) of a marking command (CMn) by a user in the equipment (EQn), generation (E12) of a time marker (MKn) by the equipment in response to the command of marking, and detection and recording (E14) of the hyperlink (HP) in the emission signal (CHn) for a predetermined duration (DP) in response to the general time marker (MK).   o 5 - Process according to any one of   Claims 1 to 4, including registration   (E3) an identifier (IEQn) of the equipment, and / or an identifier of the selected transmission signal (CHn) and / or a user identifier (IUS), in correspondence with each hyperlink save (HP).   6 - Process according to any one of   Claims 1 to 5, according to which a hyperlink (HP)   contains a type of information identifier (TYP), an identifier (ID) of information to be accessed, and a data field (DATA) linked to information to access.   7 - Process according to any one of   Claims 1 to 6, according to which the hyperlink (HP)   contains as an information identifier (ID) a server address or characteristics of a broadcast signal subsequent to the broadcast signal containing the detected hyperlink.   8 - Process according to any one of   Claims 1 to 7, according to which the hyperlink (HP)   contains in tent that data field (DATA) at least one key word, and / or a title of ['emission whose 2s 2839598 signal (CHn) contains the hyperlink and / or data time stamp on the program.   9 - Process according to any one of   Claims 1 to 5, according to which the hyperlink (HP)   contains a document address in a servour.   - Process according to any one of   claims 1 to 9, wherein the hyperlink (HP)   o contains a duration of activity during which the hyperlink is systematically memorized temporarily following the detection of the hyperlink. 11 - Method according to claim 10 when dependent on claim 4, according to which a hyperlink (HP) is recorded (E14) if the duration of activity of the hyperlink at least overlaps the predetermined duration (PD).   12 - Process according to any one of   claims 1 to 11, according to which hyperlinks   (HP) periodically incorporated into the signal emission (CHn).   13 - Process according to any one of   claims 1 to 12, according to which each hyperlink   (HP) contains a respective backup duration (DS) during which the hyperlink is saved from his recording.   14 - Process according to any one of   claims 1 to 13, according to which a hyperlink   interest (HPI) selected from among registered hyperlinks (HP) is saved for a period of 26 2839598   respective backup (DS) whose expiration (E9) is systematically signaled in order to erase (E93) the hyperlink of interest if it is not consulted again. - Device for accessing information dependent on a transmission in the transmission signal of a program channel selected in a receiving equipment, characterized in that it comprises means (UT) for detecting at least one hyperlink ( HP) incorporated in the transmission signal and links to the information that the transmission signal (CHn) is selected in the equipment (EQn), a means (MH) for recording the detected hyperlinks, and a means (UT ) to later select hyperlinks of interest (HPI) among hyperlinks records (HP).   16 - Device according to claim 15, comprising means (UT) for detecting and recording a time marker (MKn) generated by the equipment (EQn) in response to a user marking command   (CMn) detected in the equipment (EQn).   2517 - Device according to claim 15, comprising means (UT) for detecting at least one hyperlink (HP) in the emission signal (CHn) for a predetermined duration (DP) following a detection of a time marker ( MKn) generated by the equipment (EQn) in response to a user marking command (CMn) detected in the equipment (EQn). 18 Device in accordance with any of   claims 15 to 17, according to which the means for 27 2839598   detect (UT) detects hyperlinks in several pieces of equipment (EQ1 to EQN), and in that the device comprises means (MUT) for previously memorizing identifiers (IEQ1 to IEQN) of the equipment in association each with chain identifiers respective (3CH1 t a CHNi).   19 - Device in accordance with any of   claims 15 to 18, comprising means (MUS)   lo to previously memorize identifiers (IUS) of several users in association each with one or more respective equipment identifiers (IEQ1 to IEQN) in order to authorize a user to select chain identifiers only for at least one equipment whose l identifier (IEQn) is associated with the identifier (IUS) of