EP4331220A1 - Procédé et dispositif de contrôle de reproduction de flux de données, enregistreur réseau, enregistreur personnel et dispositif de reproduction - Google Patents
Procédé et dispositif de contrôle de reproduction de flux de données, enregistreur réseau, enregistreur personnel et dispositif de reproductionInfo
- Publication number
- EP4331220A1 EP4331220A1 EP22727215.0A EP22727215A EP4331220A1 EP 4331220 A1 EP4331220 A1 EP 4331220A1 EP 22727215 A EP22727215 A EP 22727215A EP 4331220 A1 EP4331220 A1 EP 4331220A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stream
- data stream
- reproduction
- stored
- command
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
- H04N21/4325—Content retrieval operation from a local storage medium, e.g. hard-disk by playing back content from the storage medium
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4333—Processing operations in response to a pause request
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
Definitions
- the invention relates to the field of the transmission of data streams and more particularly to the control of their reproduction, in particular of deferred reproduction or time-shift in English.
- PVR personal recorders for personal video recorder
- freeze frame also called pause, fast forward and rewind (possibly with several speeds), jump to a chapter flow.
- hard disks in these personal recorders, in TV decoders or in Internet-connected terminals for receiving IP television, manufacturers have modified their products to make these functions available for directly reproduced broadcast streams.
- this equipment today comprises stream reproduction control means also called “live control", Timeshift in English.
- the recorder for example, has a hard disk that serves as a storage area for classic content recording: scheduled recording (date and time of start and end of recording, recording channel, possibly recording periodicity) or live of the content being reproduced (from the command to record "REC" for a predefined duration or until the command to stop recording, etc.) and, at least in part, from memory cyclic.
- This cyclic memory stores in a sliding manner the last N minutes of a predetermined stream depending on the command for selection by the user of the stream to be reproduced since it is the stream being reproduced from the moment of the reproduction command. of said flow.
- the Timeshift thus offered to the user provides an interaction with the directly reproduced broadcast content.
- the user arriving on a new channel will be able to order either a rapid return to the start of the debate or to the start of the chapter of the content being reproduced.
- the user will therefore have all the direct control functions on all the channels, including from the first second of reproduction of a new data stream.
- the live broadcast of an event is ensured successively by different television channels. If, the reproduction of the data stream relating to this event transmitted by the first channel is delayed, for one reason or another, interruption in the viewing of the reproduction of the event, backtracking on an important moment... when the retransmission switch is made between a first channel and a second channel, the user will not make the channel change at this time but only at the end of the deferred reproduction of the data stream relating to this event transmitted by the first chain. Then, at best the reproduced stream relating to this event transmitted by the second channel will be live, at worst the reproduced stream transmitted by the second channel does not correspond to this event because the delay is too great.
- One of the aims of the present invention is to provide improvements over the state of the art.
- An object of the invention is a method for controlling the reproduction of transmitted data streams including at least a first transmitted data stream and a second data stream, the first stream and the second stream being separate streams, at least one stream of data, the first transmitted data stream of which being stored for a predetermined remanence duration, the control method comprising, during a reproduction command of a second data stream, a storage of a reproduction shift duration d a first stored data stream being reproduced.
- the duration of the shift being memorized it can be used to automate a reproduction of any data stream while taking into account the delay when changing channels, thus avoiding the reproduction of the live which can annoy the user in particular in him spoiling the viewing of previous data in the stream (e.g. match score, end of movie, etc.)
- control method comprises deferred reading of data streams triggered by a command to reproduce a data stream, the deferred reading supplying the stored data stream to reproduction, depending on the stored shift duration.
- the reproduction of the data stream corresponds to the reproduction of the stored data stream of this new channel from a time marker corresponding to a delay equal to the stored shift duration . If the user zaps on several channels to return to the original channel, the reproduction of the data stream corresponds to the reproduction of the stored data stream of this original channel from a time stamp corresponding to an equal delay the lag time memorized in relation to the start time of zapping or a delay equal to the lag time memorized plus the zapping time. In any case, the user will not be bothered by a possible reproduction of data spoiling the rest of the reproduction of the data stream.
- the data stream reproduced later with a delay depending on the stored offset duration is one of the following data streams:
- control method comprises, during a command to reproduce a second data stream, a first interaction request triggering a reproduction of a proposal for conservation of the deferred, the storage being implemented during a positive response to the first interaction request.
- the user can choose to keep the offset duration to possibly use it during a later reproduction of data streams. This avoids loading the delay memory unnecessarily of shift duration that the user knows he will not reuse.
- control method comprising, during a command to reproduce a new rcmd data stream, a second interaction request triggering a reproduction of a proposal for propagation of the deferred to the new data stream, the deferred reading as a function of the stored shift duration being implemented on the new stored data stream upon a positive response to the second interaction request.
- the user can choose whether or not to use the offset time stored on the incoming data stream when changing channels. For example, this avoids unnecessary use of the delay time when simply channel zapping to review the programs currently being broadcast and therefore a use of unnecessary resources not only for the calculation of the playback and research delay of the stream stored with this deferred for its reproduction.
- the new stored data stream reproduced with a delay depending on the stored shift duration is one of the following data streams:
- the various steps of the method according to the invention are implemented by computer software or program, this software comprising software instructions intended to be executed by a data processor of a device forming part of a network recorder, a data stream decoder or a reproduction device and being designed to control the execution of the various steps of this method.
- the invention therefore also relates to a program comprising program code instructions for the execution of the steps of the control method when said program is executed by a processor.
- This program can use any programming language and be in the form of source code, object code or intermediate code between source code and object code such as in a partially compiled form or in any other desirable form.
- An object of the invention is also a device for controlling the reproduction of transmitted data streams, of which at least a first transmitted data stream and a second data stream, the first stream and the second stream being separate streams, at least one data stream of which the first data stream transmitted being stored in a stream memory for a predetermined remanence period, the control device comprising a deferred memory, the deferred memory storing, during a reproduction command of a second data stream, a reproduction lag time of a stored first data stream being reproduced.
- Another object of the invention is a network recorder comprising:
- a stream memory storing, for a predetermined remanence period, at least one data stream transmitted by a data stream source
- a deferred memory storing, during a reproduction command for a second data stream, a reproduction shift duration of a first data stream stored in the memory of the stream being reproduced.
- the reproduction control device comprising a stream reader able to read in the stream memory the data stream stored with a deferred function of the stored shift duration.
- An object of the invention is also a data stream decoder receiving data streams, the data stream decoder comprising:
- the selector sending to a reproduction device connected to the data stream decoder the selected data stream at least of the transmitted data streams and/or at least one stored data stream corresponding to at least one transmitted data stream recorded in a memory;
- the reproduction control device comprises:
- a deferred memory storing, during a reproduction command of a second data stream, a reproduction shift duration of a first data stream stored during reproduction.
- An object of the invention is, moreover, a data stream reproduction device, the reproduction device comprising:
- the selector sending to the elementary device of reproducing the selected data stream at least one of the transmitted data streams and/or at least one stored data stream corresponding to at least one transmitted data stream stored in a memory;
- the reproduction control device comprises:
- a deferred memory storing, during a reproduction command of a second data stream, a reproduction shift duration of a first data stream stored during reproduction.
- FIG. 1a a simplified diagram of a reproduction control method according to the invention
- FIG. 2 a simplified diagram of a reproduction control method according to the invention further comprising a live control
- FIG. 3 a simplified diagram of a reproduction control device according to the invention
- FIG. 4a a simplified diagram of a first embodiment of a communication architecture comprising the reproduction control device according to the invention
- FIG. 4b a simplified diagram of a second embodiment of a communication architecture comprising the reproduction control device according to the invention
- FIG. 4c a simplified diagram of a third embodiment of a communication architecture comprising the reproduction control device according to the invention
- FIG. 5a a simplified diagram illustrating a first use case of the invention
- Figure 5b a simplified diagram illustrating a second use case of the invention.
- Figure 1a illustrates a simplified diagram of a reproduction control method according to the invention.
- the RPRC control method comprises, during a reproduction command of a second data stream rcmd(f2), an ASTK memorization of a reproduction shift duration D of a first memorized data stream fi(t+ A) being reproduced.
- reproduction lag duration of a stored data stream D during reproduction is understood a time lag corresponding, in particular, to the time lag between the instant of transmission of a datum of the transmitted data stream and the instant reproduction of this same datum of the stored transmitted data stream, or at the time lag between the instant of reception, by the data stream recorder or the device implementing this stream recorder, of a datum of the transmitted data stream and the instant of reading, by this recorder, of this same datum of the stored transmitted data stream, or at the time lag between the instant of reception, by the data stream receiver, of a datum of the transmitted data stream and the instant of reception, retrieval or reproduction of this same datum of the stored transmitted data stream, etc.
- the reproduction shift duration D is recovered and/or calculated prior to the reproduction of FRPR streams implemented on the first stored data stream fi(t+A), in particular as a function of the first stored data stream fi( t+A).
- the reproduction shift duration D is stored in a deferred database BDA, that is to say a reproduction shift duration database.
- the shift duration is stored in association with an identifier of the first data stream and a stream change instant.
- the instant of change of stream corresponds to the instant at which the reproduction of the first stream is interrupted, either by changing the reproduced stream: passing from the reproduction of the first stream to the reproduction of the second stream, or stopping reproduction.
- the resumption of the reproduction of the first stream will make it possible to reproduce the first stream from the moment at which its reproduction will have been stopped whatever the commands and/or reproduction of streams carried out in the meantime without the need to propagate the deferred at each flow change or limit the conservation of the deferred to the deferred of a single flow.
- the reproduction of the first stream stored using a first reproduction shift duration associated with this first stream is finished, the reproduction of another stream, for example of the second stream, using a second reproduction shift duration (separate from the first shift duration) may be implemented.
- phase beginning with the command to reproduce a second stream rcmd(Î2) while an FRPR reproduction of a first memorized stream is in progress fi(t+A) and ending with the memorization of the duration reproduction shift D is a first phase called phase of initialization or conservation of the deferred PhAIN.
- the new data stream is the second data stream for which the reproduction command rcmd(f2) triggered the ASTK memorization of the phase of conservation of the deferred PhAIN.
- the deferred reading FRDD provides, for the reproduction of data streams FRPR, according to the stored shift duration D′, the stored data stream fi(t+A′).
- the data stream f subsequently reproduced with a delay depending on the stored shift duration D' is one of the following data streams:
- the reproduction command rcmd(Î 2 ) triggering the ASTK memorization also triggers the deferred reading FRDD, according to the memorized shift duration D, in this case of the second memorized data stream f 2 ( t+A').
- the FRPR reproduction of the second data stream Î2 commanded rcmd(Î 2 ) prior to the ASTK memorization is carried out either live: the reproduced data stream is then either the second data stream transmitted Î 2 (t), either the second memorized data stream reproduced without shift f 2 (t), or deferred: the reproduced data stream is then either the second memorized stream reproduced with a proper shift f′ 2 (t+A 2 ) or with the stored shift f 2 (t+A') as in the first use case.
- a command to reproduce a data stream distinct from the second data stream rcmd(f)i1 2 triggers the deferred reading of a stored data stream fi, i1 2 (t+D') by using the duration of memorized offset D'.
- This new data stream is in particular a third distinct stored data stream f3 distinct from the first and second streams fi and f?.
- the deferred can either be reused on the first stream fi to resume the reproduction of the first data stream fi where it was stopped, or propagate to a new data stream: a third data stream Î3.
- the command to reproduce a data stream triggering the deferred reading FRDD relates to a data stream distinct from the second data stream rcmd(f)i1 2 .
- This new data stream is in particular the first memorized data stream fi, thus the deferred reading provides the first memorized stream read deferred f' 1 (t+D') by using the memorized shift duration D'
- reading the duration of offset ARD searches in a deferred database for the stored reproduction offset duration D′, for example as a function of the data stream fi of the reproduction command rcmd(fi).
- the shift duration reading ARD modifies the reproduction command rcmd(fi) by integrating therein the shift duration read D′ and provides the deferred reading FRDD with the modified reproduction command rcmd(fi, A′).
- deferred reading requires req(f,A') the data stream fi from the playback command rcmd(f) to a BDF stream database with a time offset equal to the stored time offset D', namely lu by reading the ARD lag time.
- the BDF stream base is a database in which is stored at least one transmitted data stream including the first data stream.
- the second transmitted data stream is also stored in the BDF stream database.
- a third transmitted data stream is stored in addition to the first stream, or even the second stream, in the BDF stream database.
- deferred reading recovers, from the stream base, the stored data stream fi(t+A') corresponding to the data stream whose reproduction has been ordered rcmd(fi), with a deferred function of the stored shift duration D '.
- Figure 1b illustrates a detailed, non-exhaustive diagram of a reproduction control method according to the invention.
- the RPRC control method comprises, during a reproduction command of a second data stream rcmd(Î2), an ASTK storage of a reproduction shift duration D of a first stored data stream fi(t+ A) being reproduced.
- the RPRC control method comprises a verification of a first interaction RSPi? of a user U, in particular following a reproduction IR_RPR, possibly by a user interface IU, of a first interaction request in.
- the first in_rsp, rspi interaction is either received IR_RCV from the UI user interface or picked up IR_CPT from the user U.
- the RPRC control method includes a verification of the response to the first interaction request.
- the verification of the response to the first interaction request constitutes a verification of a first interaction RSPi?.
- the RPRC control method comprises generation of an interaction request IR_GN generating a first interaction request in comprising in particular a proposal for conservation of the reproducible deferred.
- the interaction request generation is in particular a function of the reproduction command rcmd(Î2) and/or of the data stream being reproduced fi and/or of the reproduction shift duration D of the data stream being reproduced .
- the IR_GN generation selects and/or modifies at least one proposal in a previously stored conservation proposal list according to the reproduction command rcmd(Î2) and/or the data stream being reproduced fi and/or the reproduction lag time D of the data stream being reproduced.
- the proposal takes into account the type of content of the first stream and/or of the second stream, or even integrates the reproduction shift duration D.
- the first interaction request in provided by the generation IR_GN is reproduced IR_RPR or transmitted IR_EM to a user interface IU to be reproduced for the user U.
- the response to the first interaction request in_rsp is either received IR_RCV from the user interface IU or captured IR_CPT from the user U following the reproduction IR_RPR or by the user interface IU of the first request d 'interaction.
- the RPRC reproduction control method comprises a conservation of the deferred DKR implementing the ASTK memorization and, optionally, an additional step from among the following: - generation of a first interaction request IR_GN;
- the reproduction shift duration D is recovered and/or calculated prior to the reproduction of FRPR streams implemented on the first stored data stream fi(t+A), in particular as a function of the first stored data stream fi( t+A).
- the reproduction shift duration D is stored in a deferred base B ⁇ D, that is to say a reproduction shift duration database.
- phase beginning with the command to reproduce a second stream rcmd(Î2) while an FRPR reproduction of a first memorized stream is in progress fi(t+A) and ending with the memorization of the duration reproduction shift D is a first phase called phase of initialization or conservation of the deferred PhAIN.
- the new data stream is the second data stream for which the reproduction command rcmd(f2) triggered the ASTK memorization of the phase of conservation of the deferred PhAIN.
- the deferred reading FRDD provides, for the reproduction of data streams FRPR, according to the stored shift duration D′, the stored data stream fi(t+A′).
- the data stream f subsequently reproduced with a delay depending on the stored shift duration D' is one of the following data streams:
- the shift duration reading ARD searches in a deferred base for the stored reproduction shift duration A′, for example as a function of the data stream f of the reproduction command rcmd(f).
- the shift duration reading ARD modifies the reproduction command rcmd(f) by integrating therein the shift duration read D′ and supplies the deferred reading FRDD with the modified reproduction command rcmd(fi, A′).
- deferred reading requires req(fi,A') the data stream f from the playback command rcmd(f) to a BDF stream database with a time offset equal to the stored time offset D', namely lu by reading the ARD lag time.
- the BDF stream base is a database in which is stored at least one transmitted data stream including the first data stream.
- the second transmitted data stream is also stored in the BDF stream database.
- a third transmitted data stream is stored in addition to the first stream, or even the second stream, in the BDF stream database.
- the deferred reading recovers, from the stream base, the stored data stream fi(t+D') corresponding to the data stream whose reproduction has been ordered rcmd(fi), with a deferred function of the stored shift duration D '.
- the RPRC control method comprises a verification of a second interaction RSP 2 ? of a user U, in particular following a reproduction IR_RPR, possibly by a user interface IU, of a second interaction request ir 2 .
- the first second ir2_rsp, rsp ⁇ is either received IR_RCV from the user interface IU or picked up IR_CPT coming from the user U.
- the reproduction control method RPRC comprises a propagation of the delayed APPG implementing the deferred reading FRDD and, optionally, an additional step from among the following:
- the new stored data stream reproduced fi with a delay depending on the stored shift duration D is one of the following data streams:
- FIG. 2 illustrates a simplified diagram of a reproduction control method according to the invention further comprising a direct control.
- the reproduction control method RPRC includes a stream storage FSTCK capable of recording at least one transmitted data stream fi, f?, f n for a predetermined remanence duration TR in particular in a stream database BDF.
- the storage of fluxc FSTCK records the data transmitted of the stream or streams to be recorded, indeed of all the streams transmitted fi(t), f?(t), f n (t). Consequently, the data of the data stream recorded f j corresponds to the data transmitted via the data stream from the instants t- ⁇ R until the instant t, ie f j (tT R)...f j (t).
- Each of the streams T, f?, ..., fn is possibly transmitted by means of distinct transmission channels ci, c ⁇ , ..., c n in particular on distinct broadcasting frequencies (eg hertzian broadcasting, TNT).
- distinct transmission channels ci, c ⁇ , ..., c n in particular on distinct broadcasting frequencies (eg hertzian broadcasting, TNT).
- the reproduction control method RPRC comprises a selection of streams FSLCT receiving a command to reproduce a data stream rcmd(f j ) making it possible to recover from among the recorded streams the stream whose reproduction is commanded: f j ( t).
- the data retrieved from the stream corresponds to the data from the stream at the current time t, also called live stream: f j (t).
- This recovered stream f' j (t) is supplied to the FRPR reproduction (shown in Figures 1a and 1b).
- the stream selection SLCT sends a stream request, in particular a stream storage address request add_req(f j ) when the stream is recorded in a stream base BDF comprising several data streams.
- the live stream f j (t) is retrieved either directly by selecting FSLCT or by reading the FRD stream.
- the FSLCT selection requires an add_req(f j ) address, it retrieves the address of the f j _add stream from the BDF stream base and provides it to the FRD stream reader which requires the stream located at address received freq(f j _add).
- this phase which includes the selection of FSLCT streams and possibly one or more of the following steps:
- phase without shift PhAZ phase without shift PhAZ.
- the RPRC reproduction control method includes a ts? receiving a tscmd shift command particularly from a UI user interface and checking which reproduction shift action it corresponds to.
- ts analysis? check if the shift command or timeshift in English corresponding to an action in particular among the following actions:
- the analysis determines that no shift action has been commanded or that the tscmd shift command commands a return to live, then the analysis determines that no action is commanded [N] and transmits the stream read live f' j (t) FRPR stream reproduction.
- the analysis triggers the IMEM preservation of the retrieved/read data f j (t ps ) corresponding to the instant of the stream where the pause action is triggered tps, the IMEM preservation providing this data f' j (t ps ) to reproduction FRPR, and, in particular, starts tst a measurement TM of the pause time, for example by a stopwatch.
- the ts analysis? determines an action of fast forward or rewind [mv]
- the ts analysis? triggers frmst a fast playback of the FRM stream with a predefined speed m (positive in the case of fast forward and negative in the case of fast reverse) from the trigger instant tmv and provides the FRPR playback with the data retrieved/read f j (t mv +m(t- t mv )).
- the reproduction control method RPRC then comprises, prior to the deferred reading FRDD, an ACLC calculation of the reproduction shift duration Aj corresponds to the pause duration A ps or the time difference between the current instant t and the instant reproduced before the stop of the preceding action, respectively t ps , tfr.
- the deferred reading FRDD supplies the reproduction FRPR with the stream of data to be reproduced fj(t+A j ) with a delay corresponding to the reproduction offset due to the preceding action.
- the reproduction FRPR is in particular implemented either by the reproduction control method RPRC or by a reproduction device DRPR.
- the RPRC reproduction control method comprises a time shift of the FTS stream reproduction implementing the shift control analysis ts? and, optionally, an additional step from the following:
- reproduction shift phase PhAUS-i The phase starting with the analysis of the shift command ts? and ending with the supply of a shifted data stream f' j (t+A j ) or not f j (t) to the FRPR stream reproduction is called reproduction shift phase PhAUS-i.
- the reproduction shift duration A j used in the reproduction shift phase PhAUSi depends on the shift commands tscmd implemented.
- the RPRC control method comprises, during a reproduction command of a second data stream rcmd(f k 1 j ), an ASTK memorization and/or DKR conservation of a reproduction shift duration D of a first stored data stream f' j (t+A j ) being reproduced.
- the reproduction shift duration A j is retrieved and/or calculated ACLC prior to the reproduction of FRPR streams implemented on the first stored data item f j (t+A j ), in particular as a function of the first stream of stored data f j (t+A j ).
- the reproduction shift duration Aj is stored in a deferred database BDA, that is to say a reproduction shift duration database.
- the shift duration A j is stored in association with an identifier of the first data stream f j and, possibly, a stream change instant.
- phase beginning with the command to reproduce a second stream rcmd(f k ) while an FRPR reproduction of a first stored stream is in progress f j (t+A j ) and ending with the storage of the reproduction shift duration Aj is a first phase called the phase of initialization or conservation of the deferred PhAIN.
- the new data stream is the second data stream for which the reproduction command rcmd(f k ) triggered the storage ASTK and/or storage DKR of the storage phase of the deferred PhAIN.
- Deferred reading FRDD provides, for the reproduction of FRPR data streams, as a function of the stored shift duration A′ j , the stored data stream fi(t+A′ j ).
- the data stream f subsequently reproduced with a delay depending on the stored shift duration A'j is one of the following data streams:
- the BDF stream base is a database in which is stored at least one transmitted data stream including the first data stream.
- the second data stream transmitted is also stored in the stream base BDF.
- a third transmitted data stream is stored in addition to the first stream, or even the second stream, in the stream base BDF.
- the deferred reading retrieves, from the stream base, the stored data stream f'i(t+A'j ) corresponding to the data stream whose reproduction has been ordered rcmd(f), with a delay function of the duration stored offset A' j .
- a particular embodiment of the transmitted data stream reproduction control method is a program comprising program code instructions for the execution of the steps of the RPRC control method, in particular as illustrated by FIGS. 1a, 1b or 2 when said program is executed by a processor.
- Figure 3 illustrates a simplified diagram of a reproduction control device according to the invention.
- the reproduction control device 10.60 controls a transmitted data stream reproduction device f j including at least a first transmitted data stream fi and a second data stream 2
- the first stream fi and the second stream fi? are separate streams.
- the control device 10, 60 comprises a deferred memory 1044.
- the deferred memory 1044 stores, during a command to reproduce a second data stream rcmd(f k ), a reproduction shift duration A j d a first stored data stream f j being reproduced.
- the reproduction control device 10,60 comprises the flow memory 11, 61.
- the reproduction control device 10, 60 includes a stream reader 102 in the stream memory 11, 61.
- the stream reader 102 supplies the stream f j , f k , fi whose reproduction has been ordered rcmd(fi), rcmd(f k ), rcmd(fi) to the reproduction device 4.
- the stream reader stream 102 requires the stream f, f k , fi whose reproduction has been ordered rcmd(f), rcmd(f k ), rcmd(f) to the stream memory 11, 61 before supplying it to the reproduction device 4.
- the reproduction control device 10, 60 comprises a recorder 1043 of reproduction shift duration in a deferred memory 1044, in particular in a deferred database comprising at least one reproduction shift duration optionally associated with an identifier of the stream being played offline.
- the deferred base comprises several reproduction shift durations, the origin of the shift duration is easily identifiable and the use for subsequent reproduction of this original stream deferred by the duration recorded shift allows to resume the reproduction of the stream where it had been stopped by a change of stream reproduced when the original stream was reproduced on a deferred basis.
- the reproduction control device 10, 60 comprises a playback offset duration reader 1045 in the deferred memory 1044.
- the offset duration reader is triggered by a command to reproduce a data stream rcmd( f k ), rcmd(fi).
- the offset duration reader supplies, to the stream reader 102, the reproduction offset duration to be used D) or the instant 13.t+A′ j from which the stream f k , fi must be read.
- the reproduction control device 10, 60 comprises an interaction command receiver/sensor 1042 receiving an interaction command 9. in_rsp, rsp-i, 12. ir2_rsp, rsp2, the interaction command comprising in particular a response to an interaction proposal 9. iri _ rsp, 12. ir2_rsp.
- a sensor 100, 1042 implemented in the reproduction control device 10, 60 such as a voice sensor able to recognize in the words spoken by the user U either the positive response or a deferred conservation command, etc. ., a motion sensor capable of recognizing in the gestures of the user U either the positive response, or a command to retain the deferred, or a command to propagate the deferred, or the designation of a command proposed from among several commands reproduced corresponding to in particular a positive response to the interaction proposal or a command to keep the deferred, etc. ; and or
- a receiver 100, 1042 of a command from a control device 2 such as a remote control, a terminal connected (in particular a smartphone, a connected watch, etc.) to the control device 10, 60 and/ or to the reproduction device 4.
- a control device 2 such as a remote control, a terminal connected (in particular a smartphone, a connected watch, etc.) to the control device 10, 60 and/ or to the reproduction device 4.
- the reproduction control device 10, 60 comprises an analyzer 1043 able to verify the interaction command and to trigger the recorder 1043 according to the interaction command 9. in_rsp, rsp-i, in particular if the response to the interaction proposal is positive or if the interaction command is a deferred storage command.
- the reproduction control device 10, 60 comprises an analyzer 1042 able to check the interaction command and to trigger the offset duration reader 1045 or the flow reader 102 according to the interaction command 12. ir2_rsp, rsp2, in particular if the response to the interaction proposal is positive or if the interaction command is a deferred propagation command.
- the reproduction control device 10, 60 comprises a reproducer/transmitter 1041 capable either of reproducing or of transmitting to a reproduction device 4 a interaction proposal 8. in, 11. in.
- the interaction proposal 8. in, 11. in is in particular supplied by an interaction proposal generator 1040.
- control device 10, 60 comprises a deferred storage/propagation device 104.
- the deferred storage/propagation device 104 comprises in particular one or more of the devices among the following devices:
- receiver/sensor 1042 of interaction commands comprising at least one receiver and/or at least one sensor of interaction commands
- the transmitter/reproducer comprising either a transmitter intended for a reproduction device 4, or at least one reproducer of interaction proposals (by reproducer is understood in particular screen, high -speaker, etc.);
- a device 1042 for processing interaction commands as illustrated by FIG. 3 comprises an interaction command receiver/sensor and/or an interaction command analyzer.
- control device 10, 60 comprises a command interface 100 comprising at least:
- a sensor such as a voice sensor able to recognize in the words spoken by the user U a specific command, a motion sensor able to recognize in the gestures of the user U a specific command, i.e. the designation of a command proposed among several reproduced commands, etc. ; and or
- the analyzer 1042 receives from a command interface 100 the interaction commands received and/or picked up 9. iri _ rsp, rsp-i, 12. ir2_rsp, rsp2, 2. ir2_rsp, rsp ⁇ via the control interface 100.
- the control device 10, 60 comprises a stream selector 101 capable of recovering the stream associated with the reproduction command 1. rcmd(f j ), 7. rcmd(f k ), 10.rcmd(f) in the stream memory 11, 61.
- the stream reader 102 receives from the stream selector 101 an address in the stream memory 11, 61 at which the stream associated with the reproduction command 1. rcmd(f j ), 7. rcmd(f k ), 10.rcmd(fi) is readable.
- the stream reader 102 does not receive a reproduction shift duration, the stream reader 102 reads the ordered stream live, that is to say the stream data corresponding to the current instant t: 2d. f j (t).
- control device 10, 60 comprises a time shift device 103.
- the time shift device 103 supplies the stream reader 102 with a time shift duration A j or the instant 6”a.t+A j at from which the stream f j must be read according to one or more subsequent time shift commands 3.tscmd or “timeshift” command in English.
- the time shift device 103 comprises a time shift command analyzer 1030.
- the device 1030 is a time shift command processing device as illustrated by FIG. 3 comprising a time shift command receiver/sensor 3.tscomd and/or a shift command parser.
- the time shift command analyzer receives the time shift commands 3.tscomd from the command interface 100.
- the 1030 analyzer triggers one or more devices based on the time shift command 3.tscmd.
- the 1030 analyzer checks whether the shift command or timeshift in English corresponds to an action in particular among the following actions:
- parser 1030 determines that no shift action has been commanded or that the tscmd shift command commands a return to live, then parser 1030 determines that no action is commanded [N] and commands the stream reader 102 to read the live stream f j (t) to transmit it to a reproduction device 4.
- the analyzer 1030 determines a pause action [ps]
- the analyzer 1030 triggers 3'.tscmd(ps) a pause controller 1031 commanding, to the stream reader 102, a pause in the reading of stream 4 'a.psrd so that the stream reader provides only the retrieved/read data f j (t ps ) corresponding to the instant of the stream when the pause action is triggered t ps to the reproduction device 4, and, in particular, a start tst of the stopwatch 1032 measuring the reading pause duration of the stream A ps .
- the analyzer 1030 determines a fast forward or rewind action [mv]
- the analyzer 1030 triggers a fast reader of the stream 1033 with a predefined speed m (positive in the case of fast forward and negative in the case of a rapid return) from the instant of triggering tmv and supplies the FRPR reproduction with the data retrieved/read f j (t mv +m(t- t mv )).
- the analyzer 1030 determines a read action [rd]
- the analyzer 1030 triggers a stop controller 1034 by a stop command 4”a.stpcmd, 4”b.stpcmd of the devices previously activated by the analyzer 1030 in particular the stopwatch 1032 and the fast stream reader 1033.
- the stop controller recovers, in particular, depending on the previous action: pause [ps], fast reading [mv] respectively the instant of pause t ps , and/or the pause duration A ps , the instant of the stream played in fast reading when the fast reading is stopped tmv and provides the stream reader 102 with the instant from which the stream must be read in function of the instants recovered: respectively from the instant of pause t ps and from the instant of stopping of fast reading tmv or the reproduction shift duration Aj corresponding to the pause duration A ps or the time difference between the current instant t and the instant reproduced before the cessation of the previous action, respectively t ps , tmv.
- the time shift device 103 then comprises, prior to the stream reader 102, a calculator 1035 of the reproduction shift duration Aj corresponds to the pause duration A ps or the time difference between the current instant t and the instant reproduced before the stop of the preceding action, respectively t ps , tf r .
- the stream reader 102 supplies the reproduction device 4 with the data stream to be reproduced f j (t+A j ) with a delay corresponding to the reproduction offset due to the preceding action.
- the stream reproduction command 1. rcmd(f j ) is received or picked up by the control device 10, 60, in particular by the command interface 100 of the control device 10, 60.
- the stream f j whose reproduction has been ordered is read live f j (t), that is to say without reproduction offset with respect to the stream transmitted in the stream memory 11, 61.
- a stream selector 101 receiving the reproduction command 1. rcmd(f j ) requires the address of the stream 2a.add_f j in the stream memory 11, 61 which returns the corresponding address 2b. f j _add transmitted by the stream selector 101 to the stream reader 102.
- the stream reader 102 directly reads the stream 2d.f j (t) controlled by the reproduction command, in particular at the address in the memory 11, 61 provided by the stream selector 101. The stream reader 102 then supplies 2e.f j (t) the stored stream read live to the reproduction device 4.
- the user U commands, by means of his remote control 2, 3.tscmd, a time shift of the stream f j being reproduced.
- the time shift device 103 controls, depending on the 3.tscmd shift command, one or more shift device devices.
- the analyzer 1030 first determines the type of shift command 3'.tscmd(ps), 3”.tscmd(mv), 3”'.tscmd(rd), etc. and triggers a corresponding device, respectively the pause controller 1031, a fast player 1034 and a stop controller 1034.
- the pause controller 1031 when the triggered device is the pause controller 1031, the latter commands a reading pause 4'a.psrd to the stream reader 102.
- the stream reader does not read any other data after the reading of the data f ' j (t ps ) corresponding to the instant t ps at which the pause action was triggered by the time shift device 103 and which it provides to the reproduction device 4.
- the pause controller 1031 further controls the start 4'b.stcmd of the pause duration timer 1032.
- the fast reader 1033 When the device triggered is the fast reader 1033, the latter supplies the stream reader 102 with the next instant tmv to be read in the stream memory. This next instant in fast reading tmv corresponds to a past or future instant with respect to the current instant, it is calculated by the fast reader 1033 according to a predetermined speed m. Stream reader 102 then performs a 4”'d read. f'j(tmv) of the stream in fast forward or reverse according to the predetermined reading speed m in particular provided by the time shift command 3.tscmd and provides the fast reading stream 6”'e. fj(t mv ) to the stream reproduction device 4.
- the read instant tmv corresponds to the initial rapid read instant tmO to which is added or subtracted depending on whether the reading speed is negative (rewind) or positive (fast forward) a duration multiple of the reading speed m and possibly of the difference between the current instant and the initial fast reading instant.
- tmv t m o +rn(tt m o).
- the shutdown controller 1034 When the triggered device is the shutdown controller 1034, the latter commands a shutdown of the other devices of the time shift device 103, in particular 4”'b. stopwatch stpcmd 1032, 4”'a. stpcmd of the fast reader 1033.
- the stop controller 1034 retrieves, in particular, from the stopwatch 1032, for example the duration of the pause 5 '”b.
- a ps , or, of the fast player 1033 for example, 5”'a.tmv, A m the instant of the stream played in fast playback when the fast playback is stopped tmv or the reproduction lag time A m corresponding.
- the computer 1035 calculates the reproduction shift duration A j as a function of the recovered values, in particular of the pause duration 5'”b.
- a ps or the instant of the stream read in rapid playback when the rapid playback is stopped or the corresponding reproduction shift duration 5”'a.tmv, A m and provides, to the stream reader 102, 6”'a.t+A j the instant from which the stream must be read according to the duration of the reproduction shift generated by the subsequent time shift commands.
- the stream reader 102 then performs a 6”'d deferred reading.
- f j (t+A j ) to the stream reproduction device 4.
- Figures 4a to 4c show several embodiments of a communication architecture comprising the reproduction control device according to the invention.
- FIG. 4a illustrates a simplified diagram of a first embodiment of a communication architecture comprising a reproduction control device 10,60 according to the invention in which the data streams are received by a data stream decoder 1 connected to a TV
- the user U performs in particular an action a on a remote control 2 which sends a command cmd, in particular a stream reproduction command rcmd(fj), a time shift command tscmd to a reproduction device 4 and/or to a decoder of data stream 1.
- a network 5 for example a broadcast network or a wired (adsl, fiber optic) or mobile (4G) communication network , 5G, etc.
- the reproduction device 4 is locally connected to a data stream decoder 1 comprising a stream receiver able to receive the data streams from the source 3 and a transmitted data stream selector, the selector supplying the device with reproduction 4 a data stream fj selected according to the reproduction command received rcmd(f j ).
- the communication architecture further comprises a network recorder 6 remote from the reproduction device 4.
- the network recorder 6 comprises in particular a stream memory or stream base 61 in which at least one data stream transmitted by the source 3 via network
- the network recorder 6 is connected either locally or remotely via a communication network, in particular the network 5, to the source 3.
- the network recorder 6 comprises a receiver of data streams broadcast via the network 5.
- the network recorder 6 includes a stream recorder (not shown) recording the data of at least one data stream transmitted by the source 3 in the stream database.
- the stream base 61 is in particular made up of a stack of the FIFO (First In First Out) type of length allowing the recording of the data of a stream over a predetermined remanence period.
- the data stream decoder 1 comprises:
- the reproduction control device 10 connected to a network recorder 6 via a communication network, in particular the communication network 5 connecting the source 3 to the decoder 1, the reproduction control device 10 comprises:
- deferred data stream selector 101 sending to a reproduction device 4 connected to the data stream decoder 1 a stored data stream f j (t) selected, named first data stream, from network recorder 6;
- the offline selector 101 of the reproduction control device 10 of the decoder 1 requests the selected data stream f j from the network recorder 6 which reads in its stream base 61 the selected stored data stream f j ( t) to transmit it to decoder 1.
- the reproduction control device 10 of the decoder 1 comprises a data stream reader/receiver 102 (cf. FIG. 3) able to receive at least the selected stored data stream from the network recorder 6 and to supply it to the reproduction device 4.
- the reproduction control device 10 of the decoder 1 comprises, at the output of the data stream reader/receiver 102, a stream transmitter (not shown) transmitting to the reproduction device 4 the first stored stream.
- the decoder control device comprises a deferred propagation device 104 able to command the stream reader 102 to read the stream f k , fi indicated in a stream reproduction command rcmd(f k ), rcmd(i ) with a delay function of the shift duration stored D in the delay memory 1044, for example f' k (t+A'), f'i(t+A')
- the reproduction control device 10 of the decoder 1 comprises:
- a data stream receiver 12 (not shown) able to receive the data streams transmitted by a remote stream source 3;
- a live data stream selector 13 (not shown) capable of selecting a stream from among the received transmitted data streams
- the data stream decoder 1 comprises a controller 14 capable of intercepting the command and triggering the transmission of commands coming from a command terminal 2 to a network recorder 6 depending on the type control.
- the controller 14 transmits the command to the network recorder 6 when the command is a time shift command tscmd, or a stream reproduction command rcmd(f k ), rcmd(f) while the current data stream playback is a stored data stream.
- the stream reproduction command rcmd(f k ), rcmd(f) will not be processed by the selector 13 of the stream decoder 1 to select a data stream transmitted directly by the source 3 to the decoder 1 but by the network recorder 6 to select a data stream stored in stream memory 61 from source 3.
- the data stream decoder includes a memorized stream receiver 15 (not shown) able to receive at least the selected memorized data stream read by the network recorder 6 and to supply it to the reproduction device 4.
- the reproduction control device 10 of the decoder 1 comprises, at the output of the stored data stream receiver 15, a stream transmitter (not shown) transmitting to the reproduction device 4 the first stored stream.
- the network recorder 6 then comprises a stream memory 61 storing the data streams for a predetermined remanence period TR.
- the network recorder 6 comprises a reproduction control device 60 comprising a deferred memory 6044 storing, during a reproduction command of a second data stream rcmd(f k ), rcmd(f), a reproduction lag time D of a first stored data stream f j being reproduced.
- the network recorder 6 comprises a stream reader 602 able to read from the stream memory 61 and to provide, intended for a remote reproduction device 4, a stored data stream f j (t) selected according to of the stream selection command rcmd(f j ) received from the decoder 1 .
- the network recorder 6 includes a stream selection command receiver 600 coming from the decoder 1.
- the reproduction control device 60 comprises a deferred selector 601 which requests the selected data stream f j to the stream reader 602 which reads in its stream base 61 the selected stored data stream f j (t) to send it to decoder 1.
- the stream reader 602 of the network recorder 6 is capable of transmitting to the decoder 1 a data stream stored with a delay function of the stored offset duration f(t+A).
- control device 60 of the network recorder 6 comprises a deferred propagation device 603 able to command the stream reader 602 to read the stream f k , fi indicated in a stream reproduction command rcmd(f k ), rcmd(i) with a delay function of the shift duration stored D in the delay memory 6044, for example f′ k (t+A′), f′i(t+A′).
- the reproduction control device 60 of the recorder comprises:
- a data stream receiver 62 (not shown) able to receive the data streams transmitted by a remote stream source 3;
- a flow recorder 66 (not shown) capable of recording the data of at least one data flow transmitted by the source 3 in the flow memory or flow base 61.
- the source sends several data streams ⁇ fi ⁇ via the network 5.
- the data streams ⁇ fi ⁇ are received by the decoder 1, and/or the reproduction device 4, and network recorder 4.
- the user U commands cmd, by an action a on his command interface 2, a reproduction of a first stream rcmd(f j ).
- the command interface 2 transmits the command either to the reproduction device 4 or to the decoder 1.
- the reproduction device 4 if it receives the data streams or the decoder 1 receiving the reproduction command performs, by means of its stream selector 101, the selection of the stream f j whose reproduction is controlled by the command rcmd(fj) received among the transmitted data streams ⁇ fi ⁇ and, in the case where the selector 101 is implemented in the decoder 1, transmits it to the reproduction device 4 which reproduces the selected transmitted stream f j (t) live.
- the user U commands cmd, by at least one action a on his command interface 2, a time shift tscmd on the stream being reproduced, in this case the first stream f j .
- the command interface 2 transmits the command to the decoder 1 which, in the first particular embodiment, comprises a control device 10 capable of processing the time shift command tscmd, and, in the second particular embodiment, comprises a command transmitter intended for a network recorder 6 capable of processing the time shift command tscmd.
- the control device 10 of the decoder 1 in the first particular embodiment or the control device 60 of the network recorder in the second particular embodiment reads/receives the first stream stored in the stream memory 61 of the recorder network 6 to provide the stored data stream f j corresponding to the first deferred stream f j (t+A) with a reproduction shift duration D depending on the time shift command tscmd.
- the shift duration D corresponds to the difference between the current instant t and the instant at which the pause action was implemented by the control device 10, 60; in the case of a subsequent reading action (that is to say after a first time shift action such as a pause action), the shift duration D corresponds to the difference between the instant at which the the subsequent play action was implemented by the controller 10, 60 and the time at which the pause action was implemented by the controller 10, 60; etc
- control device 10, 60 implements a time shift device 103 capable of supplying the reader 102, 602 with the reading instant t+D integrating the reproduction shift duration as a function of the shift command tcmd.
- the command interface 2 transmits the command either to the reproduction device 4 or to the decoder 1.
- the reproduction command for the second stream will be processed by the decoder 1.
- the control device 10 of the decoder 1 in the first particular embodiment or the control device 60 of the network recorder in the second particular embodiment records in its deferred memory 1044, 6044 the shift duration D of the stream of data stored during reproduction f j (t+A), possibly depending on a first interaction rps1 , il _ rsp (cf. figure 1 b) of the user U.
- control device 10 of the decoder 1 in the first particular embodiment or the control device 60 of the network recorder in the second particular embodiment reads/receives the second stream stored in the stream memory 61 of the network recorder 6 to supply the stored data stream f k corresponding to the second live stream f′ k (t) or delayed f k (t+A′) with a stored reproduction shift duration D′.
- the reading of the second live or deferred stream is in particular a function of a second interaction rps2, i2_rsp (cf. FIG. 1b) of the user U.
- the propagation device 104, 604 provides the stream reader 102, 602 with the reproduction offset duration D' stored in the deferred memory 1044, 6044.
- the propagation device 104, 604 implements the deferred memory 1044, 6044.
- the user U commands cmd, by at least one action a on his command interface 2, a time shift tscmd on the stream being reproduced live or delayed, in this case the second stream fk .
- the command interface 2 transmits the command to the decoder 1 which, in the first particular embodiment, comprises a control device 10 capable of processing the time shift command tscmd, and, in the second particular embodiment, comprises a command transmitter intended for a network recorder 6 capable of processing the time shift command tscmd.
- the control device 10 of the decoder 1 in the first particular embodiment or the control device 60 of the network recorder in the second particular embodiment reads/receives the first stream stored in the stream memory 61 of the recorder network 6 to supply the stored data stream f' j corresponding to the second deferred stream f k (t+A k ) with a reproduction shift duration Aw depending on the time shift command tscmd and on the possible shift duration spread D'.
- the user U commands cmd, by an action a on its command interface 2, a reproduction of a new stream rcmd(fi), for example a third stream or again the first stream i j.
- the command interface 2 transmits the command either to the reproduction device 4 or to the decoder 1.
- the reproduction command for the second stream will be processed by the decoder 1.
- the control device 10 of the decoder 1 in the first particular embodiment or the control device 60 of the 'network recorder in the second particular embodiment records in its deferred memory 1044, 6044 the offset duration Aw of the stored data stream during reproduction f' k (t+A k ), possibly as a function of a first interaction rps1 , H _ rsp (cf. figure 1b) of the user U.
- control device 10 of the decoder 1 in the first particular embodiment or the control device 60 of the network recorder in the second particular embodiment reads/receives the new stream stored in the stream memory 61 of the network recorder 6 to provide the stored data stream fi corresponding to the new live stream fi(t) or delayed f'i(t+A'), f'i(t+A' k ) with a duration of playback offset D', A stored.
- the reading of the second live or deferred stream is in particular a function of a second interaction rps2, i2_rsp (cf. FIG. 1 b) of the user U.
- FIG. 4b illustrates a simplified diagram of a second embodiment of a communication architecture comprising the reproduction control device 10 according to the invention in which the data streams are received by a data stream decoder 1 connected to a television 4 and integrating the control device according to the invention.
- the user U performs in particular an action a on a remote control 2 which sends a cmd command, in particular a stream reproduction command rcmd(f j ), a time shift command tscmd to a reproduction device 4 and/or to a decoder data flow 1.
- a network 5 for example a broadcast network or a wired (adsl, fiber optic) or mobile (4G) communication network , 5G, etc.
- the reproduction device 4 is locally connected to a data stream decoder 1 comprising a stream receiver able to receive the data streams from the source 3 and a transmitted data stream selector, the selector supplying the device with reproduction 4 a selected data stream f j according to the reproduction command received rcmd(f j ).
- the decoder 1 notably comprises a stream base 11 in which at least one data stream transmitted by the source 3 via the network 5 is recorded for a remanence period.
- the decoder 1 constitutes or implements a personal recorder or Personal video recorder PVR in English.
- the decoder 1 comprises a receiver of data streams broadcast via the network 5.
- the decoder 1 comprises a stream recorder (not shown) recording the data of at least one data stream transmitted by the source 3 in the stream base.
- the stream base 11 is in particular made up of a FIFO (First In First Out) type stack of length allowing the recording of the data of a stream over a predetermined remanence duration TR.
- FIFO First In First Out
- the data stream decoder 1 comprises:
- the reproduction control device 10 comprises:
- + a deferred data stream selector 101 the deferred selector 101 sending to a reproduction device 4 connected to the data stream decoder 1 a stored data stream f′ j (t) selected, named first data stream , coming from the stream memory 11; + a deferred memory 1044 storing, during a reproduction command of a second data stream, a reproduction shift duration of a first data stream stored during reproduction;
- the offline selector 101 of the reproduction control device 10 of the decoder 1 requests the selected data stream f j from a recorder implemented in the decoder, in particular from a personal recorder, which reads in its stream base 11 the selected stored data stream f j (t) to supply it to decoder 1.
- the reproduction control device 10 of the decoder 1 comprises a data stream reader 102 (cf. FIG. 3) able to read at least the stored data stream selected in the stream memory 11 and to supply it to the device. breeding 4.
- the reproduction control device 10 of the decoder 1 comprises, at the output of the data stream reader/receiver 102, a stream transmitter (not shown) transmitting to the reproduction device 4 the first stored stream.
- the decoder control device comprises a deferred propagation device 104 able to command the stream reader 102 to read the stream f k , fi indicated in a stream reproduction command rcmd(f k ), rcmd(i ) with a delay function of the shift duration stored D in the delay memory 1044, for example f' k (t+A'), f'i(t+A')
- the reproduction control device 10 of the decoder 1 comprises:
- a data stream receiver 12 (not shown) able to receive the data streams transmitted by a remote stream source 3;
- a live data stream selector 13 (not shown) capable of selecting a stream from among the received transmitted data streams
- controller 14 capable of triggering the deferred stream selector 101 during a time shift command tscmd or during a stream reproduction command rcmd(f k ), rcmd(f) if the current data stream playback is a stored data stream.
- FIG. 4c illustrates a simplified diagram of a third embodiment of a communication architecture comprising the reproduction control device according to the invention in which the data streams are received by a television set 4 and possibly recorded in a network recorder 6.
- the user U performs in particular an action a on a remote control 2 which sends a command cmd, in particular a stream reproduction command rcmd(f j ), a time shift command tscmd to a reproduction device 4.
- the reproduction device 4 comprises a stream receiver capable of receiving the data streams from the source 3 and a transmitted data stream selector, also called live selector, the selector providing as data stream to be reproduced a selected data stream f j according to the received reproduction command rcmd(f j ).
- the live data stream selector supplies the data streams to at least one elementary reproduction device 47, in particular to at least one screen and/or at least one loudspeaker.
- the communication architecture further comprises a network recorder 6 remote from the reproduction device 4.
- the network recorder 6 comprises in particular a stream base 61 in which at least one data stream transmitted by the source 3 via the network 5 is recorded for an afterglow period.
- the network recorder 6 is connected either locally or remotely via a communication network, in particular the network 5, to the source 3.
- the network recorder 6 comprises a receiver of data streams broadcast via the network 5.
- the network recorder 6 includes a stream recorder (not shown) recording the data of at least one data stream transmitted by the source 3 in the stream database.
- the stream base 61 is in particular made up of a stack of the FIFO (First In First Out) type of length allowing the recording of the data of a stream over a predetermined remanence duration.
- the stream base 61 of the network recorder 6 retains only the data of at least one data stream transmitted during the previous instants t P the current instant t included in the remanence duration TR, tp z> [t , t-T R ].
- the reproduction device 4 comprises:
- the reproduction control device 40 connected to a network recorder 6 via a communication network, in particular the communication network 5 connecting the source 3 to the reproduction device 4, the reproduction control device 40 comprises:
- a deferred transmitted data stream selector 401 the deferred selector 401 providing as data stream to be reproduced a selected stored data stream f j (t), named first data stream, coming from the network recorder 6;
- a deferred memory 4044 storing, during a reproduction command of a second data stream, a reproduction shift duration of a first data stream stored during reproduction.
- the deferred data stream selector 401 supplies the data streams to at least one elementary reproduction device 47, in particular to at least one screen and/or at least one loudspeaker.
- the offline selector 401 of the reproduction control device 40 of the reproduction device 4 requests the selected data stream f j to the network recorder 6 which reads in its stream base 61 the selected stored data stream f j (t) to transmit it to the reproduction device 4.
- the reproduction control device 40 of the reproduction device 4 comprises a data stream reader 402 (cf. FIG. 3) able to read at least the selected stored data stream from the network recorder 6 and to supply it to the elementary reproduction device 47.
- control device 40 reproduction device 4 comprises a deferred propagation device 404 capable of commanding the stream reader 402 to read the stream f k , fi indicated in a stream reproduction command rcmd(f k ), rcmd(i) with a delay function of the shift duration stored D in the delay memory 4044, for example f' k (t+A'), f'i(t+A')
- the reproduction control device 40 of the reproduction device 4 comprises:
- a data stream receiver 42 (not shown) able to receive the data streams transmitted by a remote stream source 3;
- a live data stream selector 43 (not shown) capable of selecting a stream from among the received transmitted data streams
- controller 44 capable of triggering the deferred stream selector 401 during a time shift command tscmd or during a stream reproduction command rcmd(f k ), rcmd(f) if the current data stream playback is a stored data stream.
- the deferred memory 6044 is implemented in the network recorder.
- the network recorder 6 implements a control device 60 to that described in the second embodiment of Figure 4a.
- the reproduction device 4 possibly includes a controller 44 capable of intercepting the command and triggering the transmission of commands coming from a command terminal 2 to a network recorder 6 depending on the type of command.
- the reproduction control device 40 of the reproduction device 4 comprises, at the output of a stored data stream receiver 45, a stream transmitter (not shown) transmitting to the elementary reproduction device 47 47 the first memorized stream.
- the network architecture comprises only the source 3 connected via the network 5 to the reproduction device 4 which comprises the stream memory 4.
- the reproduction 4 includes a personal recorder.
- the reproduction device 4 records at least one data stream transmitted among the data streams transmitted by the source in the stream memory for a predetermined remanence period.
- Figures 5a and 5b show several use cases of the invention by way of example and in a non-exhaustive manner.
- FIG. 5a illustrates a simplified diagram illustrating a first use case of the invention in which the deferred D of a first stream fi is propagated on the following stream, a second stream f?, as soon as the reproduction of the first stream changes at the second stream.
- the user U watches a first data stream transmitted fi(t), f i(t) in particular by means of a first transmission channel C1 and reproduced live by a television set 4.
- a television screen 4 displays live the images of the first data stream transmitted fi(t) by a broadcast source 3 or the images of the first data stream stored f'i(t) in a stream memory 11 , 41, 61 implemented in a decoder 1 connected to the television set 4, the television set 4 or a network recorder 6 to which the television set 4 is connected directly or via a decoder 1.
- the television screen 4 displays additional information such as:
- a time shift command tscmd(ps) is transmitted by a command interface following a first action a1 of the user U relative to this command interface.
- a device in particular a time shift device 103, 403, 603 implemented in the device implementing the stream memory 11, 41, 61, respectively the decoder 1, the television set 4 or the network recorder 6, suspends the reproduction of the stream in direct and requires the supply to the elementary reproduction device of the television set, in particular on the screen, of the image of the first data stream displayed during the first action a1 of pause.
- the television screen 4 displays, in particular, the image of the first stored data stream f'-i(tps) corresponding to this instant tps.
- the television screen 4 displays additional information such as:
- a time shift command tscmd(rd) is transmitted by a command interface following a second action a2 of the user U relative to this command interface.
- the television screen 4 displays, in particular, the first stored data stream f i(t+A) with a delay as a function of the reproduction shift duration D.
- the television screen 4 displays additional information such as:
- a reproduction command rcmd(Î2) is transmitted by a command interface following a third action a3 by user U relative to this command interface.
- This command requires a change of stream reproduced, in particular of television channel in our example of FIG. 5a.
- This reproduction command rcmd(Î2) triggers the selection by the decoder 1, the television set 4 or the network recorder 6 of a second stored data stream Î2 distinct from the first stream fi then the reproduction by the television set of this second stream f ? stored data.
- a direct control device 10, 40, 60 implemented in the device implementing or connected to the stream memory 11, 41, 61, respectively the decoder 1, the television set 4 or the network recorder 6, records initially the reproduction shift duration D of the first stream fi in a deferred memory 1044, 4044, 6044 and, in our example, propagates the reproduction shift duration D to the second stream Î2.
- the device in particular a preservation/propagation device 104, 404, 604, triggers the reading of the second stream offline with a stored reproduction shift duration D corresponding to the reproduction shift duration D recorded in the deferred memory, and requires the supply to the elementary reproduction device of the television set, in particular on the screen, of the second data stream stored with a delay depending on the stored reproduction shift duration D during the third action a3 of changing stream.
- the television screen 4 displays, in particular, the second stored data stream f2(t2+A′) with a delay depending on the stored reproduction shift duration D′.
- the television screen 4 displays additional information such as:
- FIG. 5b illustrates a simplified diagram illustrating a second use case of the invention in which the deferred of the first stream is preserved then propagated again to the first stream itself after zapping over several streams before reproducing the first again flow.
- the user U watches a first stored data stream fi(t+Ai) in particular by means of a first transmission channel C1 and reproduced offline with a first time shift Di by a reproduction device 4, in particular a monitor or a television connected directly or indirectly via a communication network 5 to a data stream transmission server 3 constituting a stream source.
- the first time shift Di results in particular from previous time shift command(s) on a previously reproduced data stream, the first stream fi or another data stream fo distinct from the first stream whose time shift has been propagated to the first stream fi as illustrated by FIG. 5a for the propagation to the second stream h.
- a screen of the reproduction device 4 displays the images of the first data stream stored fi(t+Ai) in a stream memory 11, 41, 61 implemented in a decoder 1 connected to the reproduction device 4, the reproduction device 4 or a network recorder 6 to which the reproduction device 4 is connected directly or via a decoder 1.
- the screen of the reproduction device 4 displays additional information such as:
- a reproduction command rcmd(Î2) is transmitted by a command interface following a first action a1 of the user U relative to this command interface. This command requires a replicated stream change.
- This reproduction command rcmd(Î2) triggers the selection by the decoder 1, the reproduction device 4 or the network recorder 6 of a second stored data stream Î2 distinct from the first stream fi then the reproduction by the reproduction device of this second stream f? stored data.
- a direct control device 10, 40, 60 implemented in the device implementing or connected to the stream memory 11, 41, 61, respectively the decoder 1, the reproduction device 4 or the network recorder 6 , first records the reproduction shift duration Di of the first stream fi in a deferred memory 1044, 4044, 6044 and, in our example, does not propagate the reproduction shift duration Di' to the second stream h but reproduces this one live.
- a screen of the reproduction device 4 displays live the images of the second data stream transmitted Î2(t) by the source of stream 3 or the images of the second data stream stored f'2(t) in a memory of stream 11, 41, 61 implemented in a decoder 1 connected to the reproduction device 4, the reproduction device 4 or a network recorder 6 to which the reproduction device 4 is connected directly or via a decoder 1.
- the device in particular a preservation/propagation device 104, 404, 604, triggers the reading of the second live stream, and requires the supply to the elementary reproduction device of the reproduction device, in particular on the screen, of the second data stream transmitted Î2(t) or memorized f'2(t) live.
- the screen of the reproduction device 4 displays, in particular, the second data stream transmitted f2(ti) or stored f ⁇ (ti ) with a delay depending on the stored reproduction shift duration D′ .
- the screen of the reproduction device 4 displays additional information such as:
- a reproduction command rcmd(fi--i) is transmitted by a command interface following an i-2nd action ai-2 of l user U relative to this command interface.
- This command requires an i-1 th replicate stream change.
- This reproduction command rcmd(fi--i) triggers the selection by the decoder 1, the reproduction device 4 or the network recorder 6 of a second stream Î2 of stored data distinct from the first stream fi and the previous stream fi- 2 then the reproduction by the reproduction device of this i- 1st stream fn of stored data.
- a screen of the reproduction device 4 displays live the images of the i-1 th data stream transmitted fi--i(t) by the stream source 3 or the images of the i-1 th stored data stream fi -i(t) in a stream memory 11, 41, 61 implemented in a decoder 1 connected to the reproduction device 4, the reproduction device 4 or a network recorder 6 to which the reproduction device is connected directly or via a decoder 1 4.
- a device in particular a preservation/propagation device 104, 404, 604, triggers the reading of the i-1 th live stream, and requires the supply to the elementary reproduction device of the reproduction device 4, in particular on the screen, of the i-1 th data stream transmitted fi-i(t) or stored f'i-i(t) live.
- the screen of the reproduction device 4 displays, in particular, the i-1 th data stream transmitted fi--i(t) or stored fi-i(t) live.
- the screen of the reproduction device 4 displays additional information such as:
- a reproduction command rcmd(fi) is transmitted by a command interface following an nth action a n by the user U relative to this command interface.
- This command requires a change of stream reproduced, in particular of television channel in our example of FIG. 5a, in particular a return to the first stream fi reproduced at time t0.
- a direct control device 10, 40, 60 according to the invention implemented in the device implementing or connected to the stream memory 11, 41, 61, respectively the decoder 1, the reproduction device 4 or the network recorder 6 , propagates, in our example, the reproduction shift duration of the first stored stream D'i to the first stream fi.
- the device in particular a preservation/propagation device 104, 404, 604, triggers the reading of the second stream offline as a function of a memorized reproduction shift duration D i corresponding to the reproduction shift duration Di recorded in the memory delay, and requires the supply to the elementary reproduction device of the reproduction device, in particular on the screen, of the second data stream stored with a delay function of the stored reproduction shift duration D'i during the first action a1 flow change.
- the screen of the reproduction device 4 displays, in particular, the first stored data stream fi(t n +A) with a delay D as a function of the stored reproduction shift duration D'i.
- the screen of the reproduction device 4 displays additional information such as:
- the invention consists in giving the user, when changing the channel, the choice between losing the delay or keeping it (propagation) on this new channel. In short, it is a question of offering the user the possibility of extending the delay (or time shifting) when changing the channel.
- This functionality may be offered with TV services offering nPVR (network recorder) because in this case all the programs are recorded in the network (at least for a certain time) and it is possible, by changing the channel, to apply a time shift (towards the past) and therefore to keep the deferred.
- nPVR network recorder
- This invention therefore offers an additional service, in particular for IPTV, and allows the user to manage (keep/leave/find) the delay when changing streams, in particular when changing channels.
- the invention also relates to a support.
- the information carrier can be any entity or device capable of storing the program.
- the medium may include a storage medium, such as a ROM, for example a CD ROM or a microelectronic circuit ROM or else a magnetic recording medium, for example a floppy disk or a hard disk.
- the information medium can be a transmissible medium such as an electrical or optical signal which can be conveyed via an electrical or optical cable, by radio or by other means.
- the program according to the invention can in particular be downloaded onto a network, in particular of the Internet type.
- the information carrier may be an integrated circuit in which the program is incorporated, the circuit being adapted to execute or to be used in the execution of the method in question.
- the invention is implemented using software and/or hardware components.
- the term module can correspond either to a software component or to a hardware component.
- a software component corresponds to one or more computer programs, one or more sub-programs of a program, or more generally to any element of a program or software capable of implementing a function or a function set as described above.
- a hardware component corresponds to any element of a hardware assembly capable of implementing a function or a set of functions.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2104474A FR3122542A1 (fr) | 2021-04-29 | 2021-04-29 | Procédé et dispositif de contrôle de reproduction de flux de données, enregistreur réseau, enregistreur personnel et dispositif de reproduction |
| PCT/FR2022/050823 WO2022229572A1 (fr) | 2021-04-29 | 2022-04-28 | Procédé et dispositif de contrôle de reproduction de flux de données, enregistreur réseau, enregistreur personnel et dispositif de reproduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4331220A1 true EP4331220A1 (fr) | 2024-03-06 |
Family
ID=76920896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22727215.0A Pending EP4331220A1 (fr) | 2021-04-29 | 2022-04-28 | Procédé et dispositif de contrôle de reproduction de flux de données, enregistreur réseau, enregistreur personnel et dispositif de reproduction |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12425680B2 (fr) |
| EP (1) | EP4331220A1 (fr) |
| FR (1) | FR3122542A1 (fr) |
| WO (1) | WO2022229572A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4491175B2 (ja) * | 2001-09-10 | 2010-06-30 | パイオニア株式会社 | 番組記録再生システムおよび番組記録再生方法 |
| KR100774168B1 (ko) * | 2005-11-16 | 2007-11-08 | 엘지전자 주식회사 | 타임 쉬프트 기능을 갖는 영상표시 장치 및 그 제어방법 |
| KR100813047B1 (ko) * | 2005-12-12 | 2008-03-14 | 엘지전자 주식회사 | 저장된 방송 프로그램 정보 표시방법 및 장치 |
| JP2011151443A (ja) * | 2010-01-19 | 2011-08-04 | Alpine Electronics Inc | デジタル放送受信装置及びデジタル放送受信方法 |
-
2021
- 2021-04-29 FR FR2104474A patent/FR3122542A1/fr not_active Withdrawn
-
2022
- 2022-04-28 WO PCT/FR2022/050823 patent/WO2022229572A1/fr not_active Ceased
- 2022-04-28 EP EP22727215.0A patent/EP4331220A1/fr active Pending
- 2022-04-28 US US18/557,421 patent/US12425680B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| FR3122542A1 (fr) | 2022-11-04 |
| US12425680B2 (en) | 2025-09-23 |
| WO2022229572A1 (fr) | 2022-11-03 |
| US20240276059A1 (en) | 2024-08-15 |
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