WO2000021290A2 - Herabsetzen des anteils einer sinnfremden sendung in einem sendeprogramm - Google Patents
Herabsetzen des anteils einer sinnfremden sendung in einem sendeprogramm Download PDFInfo
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- WO2000021290A2 WO2000021290A2 PCT/DE1999/003232 DE9903232W WO0021290A2 WO 2000021290 A2 WO2000021290 A2 WO 2000021290A2 DE 9903232 W DE9903232 W DE 9903232W WO 0021290 A2 WO0021290 A2 WO 0021290A2
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Classifications
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Definitions
- the present invention relates to television and radio systems, in particular to a device and several methods for reducing the temporal portion of a "predetermined broadcast" in the sense of a non-meaningful portion or component in a current television or radio program, which with its main component is of primary importance Program is (primary program).
- a basic solution in particular for suppressing commercials, consists in principle of completely recording, for example, a film or a sports broadcast on a video recorder and then cutting out the commercials based on the recorded program, so that after this post-processing of the saved program, you can enjoy a television program without commercial breaks .
- a disadvantage of this method is the fact that the person who has to post-process the video recording requires an increased outlay on devices for cutting the video recording and, moreover, a lot of time.
- a control center monitors television broadcasts and transmits control and information messages to receivers who are at home with users.
- the information messages include a program table and control data for video recorders.
- a processor that receives the messages will stop recording when an identified broadcast, such as a. B. an ad will begin and resume recording when the ad has ended.
- US Pat. No. 5,343,251 describes a method for the automatic detection of advertisements during a video film, which classifies certain structures of the broadcast content in order to distinguish between conventional television programs and advertisements and is also capable of learning with regard to new advertisements.
- US-A 5,668,917 provides identification of advertisements against other advertising program content, taking into account that advertisements are repeatedly transmitted many times a day. Based on the frequent repetition of advertising programs, unlike other television programs that do not repeat itself several times a day, an identification of advertising programs is obtained directly from the television program received.
- a disadvantage is the fact that no "real-time suppression" of third-party broadcasts is described, such that, as in the case of selective video recording, there is no need to wait for the end of a broadcast until it can be viewed or heard.
- Another disadvantage of the known systems and methods is that - even if the external broadcast is hidden based on an identification signal - interruptions still remain for the user; the latter does not have to consider the third-party broadcast, but must nevertheless accept an interruption in the broadcast which corresponds to the length of the third-party broadcast.
- the object of the invention is to provide a concept by means of which a broadcasting program can be viewed even while it is being broadcast without any foreign component and interruptions caused thereby. This object is achieved with claim 1, claim 2, claim 3 or claim 4, likewise with claim 27 or claim 29.
- an intermediate memory which allows a simultaneous storage of the shipment essentially without a predetermined shipment, which is identified by a control signal, and a reading of the stored shipment, i. H. the stored television or radio program allowed.
- the program is reproduced with a time delay for the viewer. In contrast to a video recorder, this makes it possible to perceive the program with the senses while it is being transmitted.
- the user does not switch on his television or radio receiver directly at the start of the transmission, but waits for a certain time which corresponds to the total time of the broadcast blocks which are not relevant to the meaning. For example, if a program starts at 8:15 p.m. and ends at 10:00 p.m., and if three commercial blocks of 5 minutes each are expected, a user should start playing the program at around 8:30 p.m. If he starts playing too early, it may happen that he has to wait at the end of the program in the time periods with the contents that are not relevant to the meaning or must be aware of it. If, on the other hand, playback is started too late, the user will not know about it as long as the buffer is large enough.
- the foreign transmission share e.g. an advertising block, identified
- the foreign share is discarded or filtered out.
- Another advantage of using a buffer is that a user can manually stop playback, thereby interrupting the playback of the program but not the recording and storage of the program. This enables the user to leave the room without missing anything from the program, which can also be called a "freely selectable pause".
- the user or the device according to the invention carries out an estimate of how long the unwanted portion in a broadcast program will take to begin viewing the broadcast after this period.
- this is not necessary, however, since the buffer will fill up during this interruption.
- the present invention allows the user to freely choose the time of the listening or viewing break.
- the buffer is used in order to enable a substantially simultaneous storage of the program with the foreign part and a reading out of the stored program, ie the stored program, in response to the reading of the stored program, ie the stored program the control signal which identifies the predetermined program, only the received primary program is reproduced substantially without the predetermined program.
- the program is reproduced with a time delay for the viewer, and thus, in contrast to a video recorder, it is also possible here to watch the program while it is still being broadcast.
- the control signal can be recorded in the same or in a parallel memory when the transmission signal is recorded at least in sections.
- the transmission signal and control signal in the sense of an identification signal are then assigned in parallel and in time to one another (claim 8, 26, 24, alternative d). If the characteristic control signal is not yet available during the storage process of the transmission signal in real time, if it is only transmitted in sections in blocks or with a time offset in data blocks, then this identification signal can also be subsequently assigned to the stored transmission signal, based on real time.
- the storage of the identification signal does not have to take place in the same buffer as the storage of the transmission signal, but can have a controlling effect on the reproduction in such a way that when the portion of the foreign component is reached, the playback is controlled to reduce the external component.
- the assignment then only has to exist to the extent that it identifies the at least one third-party component that is currently in the buffer, which is also possible by specifying start and end time data, in the sense of definite time specifications by hour, minute and second or by type of address space information in the sense of the FIFO storage principle. If this subsequent labeling is to be carried out, the labeling signal should be available before the occurrence of the foreign component intended for interruption or time reduction.
- the buffer is used according to the invention in order to enable simultaneous storage of the program with a predetermined program and reading out of the stored program, that is to say the stored television or radio program, in response to the characteristic control signal provided by a user who Play the predetermined Shipment is controlled.
- the program is reproduced with a time delay for the viewer to perceive the program while it is being broadcast.
- the reproduction of the third-party broadcast e.g. the commercial
- skipped i.e. the area in which the corresponding data of the third-party broadcast is stored is skipped in the buffer or its playback can be accelerated by the control signal, for example, instead of the normal playback rate, an increased playback rate of the images or sounds stored in the buffer occurs until the User the control signal is no longer applied after he has sensed with his senses that the "predetermined broadcast" within the desired radio or television program has ended.
- the broadcast program that is received does not have to be transmitted to the user by radio waves, but can also be supplied to the user by cable, so that the transmission or transmission is generally understood in this respect.
- the term “suppression” is not to be understood as complete suppression, but at least the reduction of the time share of a foreign share in the primary program.
- a control signal which can be of different origins and which can intervene at different points in the circuit, in the case of a program filter, for recording in the buffer memory or on the reading device, the amount of the foreign component in the reproduced or stored transmission signal is reduced.
- playback can also be stopped while the further buffering progresses (claim 3, alternative cc).
- a FIFO memory is already described in connection with a television or radio signal in DE-A 44 10 679 in order to be able to subsequently perceive the content of programs whose start was actually missed.
- the FIFO memory has a delay which allows the user to compensate for his delay by looking at it later or listening to it later. It is an initial delay.
- the reading is not stopped, but instead the reading is carried out by the control signal, while the reading continues into the memory.
- the playback time follows the real time (lag time), which is caused and aimed by the FIFO memory.
- This time lag changes in the course of the broadcast; it becomes shorter if components of the broadcast are filtered out as unwanted external insertions, it rises when the user stops the playback via the control signal, but the broadcast signal is still stored in the buffer in real time.
- the intermediate memory thus formed accordingly allows the time pointers to be freely shifted relative to one another, as a result of which the playback control is more flexible, opens up more possibilities for the user and is able to hide or at least reduce certain portions of the transmission signal.
- the interface of the combined primary signals can be improved (claims 30 to 34).
- a duplicate information is not reproduced twice, so that in addition to the foreign component to be reduced in its temporal influence, a piece of the primary signal that is considerably shorter in comparison with it is also faded out or shortened even further.
- a comparator is looking for an interface between the transmission signal immediately before the interruption and the transmission signal immediately after the interruption, which should not be a repetition of the remaining piece before the interruption (claim 30).
- Fig. 1 is an overview block diagram of a first example.
- Fig. 2 is a more detailed illustration of the buffer of Fig. 1.
- Fig. 3 is another embodiment.
- 3a is a schematic representation of the time axis of a received signal s ⁇ n with an external component Tk between the times T2, T3, while the playback time t w is current at T1 and the recording time is at t R.
- Fig. 4 is a schematic representation of the buffer 12 according to the FIFO principle.
- FIG. 5 is a schematic illustration of comparator 40 for finding the
- FIG. 5a illustrates the timing of the transmission signal with the external interrupt Tk.
- FIG. 5b illustrates two time segments T4, T5 from FIG. 5a.
- the circuit arrangement shown in FIG. 1 comprises a receiver 10 which is coupled to an intermediate storage device 12.
- the intermediate storage device 12 is in turn connected to a read-out playback device 14 with a playback unit 14a.
- the intermediate storage device 12 is controlled by a control signal 16, which identifies a predetermined program, the proportion or duration of which is to be reduced in the playback signal.
- the control signal is given by a Control signal generation 18 is generated as will be detailed later.
- a pause device 20 is operatively coupled to the re-input device 14 to provide a stop signal 22 thereto such that playback of the buffer contents is stopped to allow a user to pause. If the user has ended the pause, he can use the
- a start signal 24 Feed the pause device 20 to the re-input device 14 a start signal 24, through which the playback is continued; alternatively, the stop signal can also become ineffective, in the manner of a start / stop signal 22.
- the buffer device 12 is preferably operatively coupled to a status display 26, by means of which a user can see the current status of the buffer, e.g. how many broadcast minutes are saved or how many broadcast minutes can still be saved.
- the status display 26 permits a preferably visual and acoustic display that a signal memory 124 which is present in the intermediate storage device 12 will soon overflow or be full.
- An acoustic display in particular allows the user, who is currently taking an extended break, to note that the buffer memory is soon overflowing and that he must hurry up.
- the playback device 14 is connected to a recording device 28 in the form of a video recorder or an audio tape, in addition to a largely real-time perception of the transmission signal, which takes place only minimally after the broadcast, also a video recording or audio tape recording with a reduced influence To receive third-party shipment, up to their complete elimination.
- the non-meaningful program can be an advertisement in a television program or a radio program.
- this broadcast component could also be traffic information in a radio program or something similar that does not match the essential program.
- FIG. 2 shows a more detailed illustration of the intermediate storage device 12.
- the intermediate storage device 12 comprises a program filter 120 which is connected to the receiver (FIG. 1) and receives the control signal.
- the program filter causes the data of the non-meaningful program in the program filter 120 to be discarded, blocked, faded out or provided with a mark, while only the data of the actual program is via the program filter 120 a preferably available encoder 122 and a memory 124.
- the encoder 122 is advantageous if the capacity of the buffer 124, which is connected downstream of the encoder 122, cannot be designed high enough, for example for reasons of cost or space.
- the encoder 122 which works according to an MPEG standard, for example, can effect approximately 40-fold compression of the transmission signal at the output of the receiver 10 (FIG. 1).
- the encoded data is then read into the buffer 124, which outputs the buffered data to a decoder 126 with a time delay so that it can be transmitted to the re-input device 14, which is connected to, for example, a television set, a radio device or a video device as the playback unit 14a.
- the signal memory 124 If it is found in the signal memory 124 that a memory overflow is imminent, it can, if it is coupled on the input side to the encoder 122, control it in such a way that an even higher data compression by the encoder 122 either the program to be currently coded by the program filter 120 or already stored program is performed in order to avoid an overflow of the buffer 124 at the expense of the quality of the program.
- a television or radio program coming in via antenna, satellite, cable, recorder or data network (Internet) serves as the input signal, in particular via the receiver 10.
- normal television programs for example, which have an information content of approximately 20 Mbytes per second, can be compressed to approximately 0.5 Mbytes per second with practically no visible loss of quality.
- Such compression rates are possible with available MPEG encoders. However, cheaper, but also considerably less powerful encoders can also be used if there is enough storage capacity.
- the buffer 124 can be designed as a one-level or multi-level memory in order to temporarily store the television or radio program, which can already be freed from the predetermined program by the program filter 120 in connection with the control signal 16.
- the data memory is organized, for example, according to the FIFO principle.
- memory 124 is a one-tier memory, it preferably consists of only one DRAM memory device or only one hard disk.
- Multi-level storage the slow storage volume-rich media, e.g. However, hard drives (which may have unevenly high transfer rates) with fast, low-storage media that have semiconductor memories are preferred.
- Such multi-level storage concepts for the intermediate storage 124 are also referred to as caching systems.
- the intermediate storage device 12 is controlled by a control signal 16 in order to identify the program component which is undesirable, which characterizes the current program content, i.e. whether a television or radio program or the unwanted program, e.g. an advertisement.
- the playback device 14 can also or separately controlled by the pause device 20 to meet user requests such. Legs Playback interruption to realize. 1 is shown connected to the re-input device 14, it could also be connected to the decoder 126 of the latch device 12 or to a latch output stage (not shown) for reading from the latch 124 to interrupt any way. Analogously, the playback time is stopped even though the transmission time continues (as real time).
- program information is simultaneously written into the memory 124 and other information that has already been buffered beforehand
- the control signal 16 activates the program filter 120 in order to interrupt the recording process in the memory.
- the interruption of the recording by the buffer 124 has no effect on the playback of the program that has already been recorded. Even when the stop signal 22 is activated, the recording process, i. H. the caching of a television or radio program is not impaired.
- control signal generating device 18 In the following, the operation of the control signal generating device 18 is discussed in order to obtain the control signal 16 which identifies the non-meaningful program.
- control signal 16 itself or a similar signal from which the control signal can be derived can be transmitted as an additional signal to the actual television or radio program, similar to the traffic code on the radio.
- This additional signal is supplied by the program provider and extracted by the device 18 from the television or radio program, preferably in the program filter 120 (FIG. 2).
- a signal that identifies a foreign component is delivered as an additional signal broadcast on a different frequency as a separate additional service that may be subject to a charge.
- One way to do this is to have a service provider watch the programs permanently, and e.g. B. manually a suitable additional signal (advertising begins, Advertising ends).
- Such a signal is advantageously transmitted via long wave, since very few transmission devices can cover very large areas in this frequency range.
- Such an additional signal can also be used over the Internet or other data services, such as. B. ISDN, are provided or supplied as a ripple control signal via power lines of the device 18.
- the additional signal from which the control signal 16 is derived or obtained can thus be transmitted in a line-bound, electromagnetic or optical manner and come from radio or television services or from data services. There is also the possibility of storing data relating to the chronological sequence of advertising and program in advance and storing this schedule in the device 18.
- control signal 16 Yet another possibility for generating the control signal 16 is to assume fixed advertising times in the control signal generating device 18 and to derive the control signal 16 from a built-in clock. This method is particularly simple and effective if there are fixed advertising times in the individual channels, such as. B. an advertisement between 8:25 p.m. and 8:26 p.m.
- control signal generating device 18 can be supplied directly with the television or radio program in order to automatically and automatically identify predetermined programs in an ongoing television or radio program by means of image or audio signal processing, in such a way that they are suppressed, or at least considerably reduced in their time frame can.
- the control signal 16 be suppressed in such a way that the foreign component is passed through unfiltered by one To prevent cache exhaustion.
- the receiver 10 can be activated to switch to other program channels or data, such as teletext or a video film and others.
- the data displayed by the playback device 14 can also be recorded in parallel on a permanent medium, such as e.g. B. by means of a video recorder, a tape recorder, a video disc, a recordable CD and the like, in order to obtain, for example, an uninterrupted program piece for your own phono or video library.
- the intermediate storage device 12 and the control signal generating device 18 can be attached as an integrated additional device between the antenna and, for example, the television set. Alternatively, they can be integrated directly into new TV sets.
- a combination with TV tuner plug-in cards for personal computers is advantageous, since under certain circumstances both the computer memory (RAM, hard disk, video memory and the like) and the main processor of the personal computer can be used directly, which means that in the best case, only one in the case of very fast personal computers additional software has to be loaded or only the coders / decoders 122, 126 have to be attached to the plug-in card as additional hardware.
- the present concept thus enables a user to be able to watch or listen to the same already during the transmission of a television or radio program, without the user having to send an unwanted program, such as. B. must endure an advertising broadcast and without an interruption occurring during the broadcasting time of the predetermined broadcast. Furthermore, the concept allows the playback of the television or radio program, from which the unwanted program has already been filtered out, to be interrupted without missing part of the program.
- the device and the method can be used in order to avoid the otherwise necessary initial waiting time of typically 15 minutes, even if programs which are currently running are temporarily stored in the background even when the television is switched off.
- the device and the method can be adapted to buffer several channels at the same time, so that the user does not have to have decided at the start of the broadcast of a film whether he would like to use this film in this channel or another film whose Transmission on another channel started, would like to see.
- the device and the method also allow the operator to rewind a short piece of a film that has just been viewed and to watch it again.
- the device can also be provided with a permanent memory.
- the device and the method enable the operator to transfer a short piece of a film that has just been viewed to a permanent memory.
- the buffer is designed to buffer the received television or radio program without the foreign broadcast, depending on the control signal 16 identifying the foreign broadcast (see FIG. 1).
- the intermediate storage device 12 can be designed in such a way that it temporarily stores both the received television or radio program and the program which is not actually desired.
- a control signal 16 is also received by the buffer device, which is generated by a control signal generator 18 in the manner described above.
- the received program is stored completely or at least partially in the intermediate store 12, that is to say including the non-meaningful program.
- the corresponding control signals can be received and stored, for example, in order to indicate in the buffer those sections in which data relating to the program to be reduced in the amount of playback are stored.
- control signal 16 does not control the program filter, but rather the (later) readout process from the memory 124 or somewhat further in the signal flow plan that the stored signals are subsequently forwarded to or via the playback device 14, which is designed as a reading device.
- the control can implement fading out, blocking, not reading out or not passing on, as well as passing on in time-lapse while accelerating the time base for playback, in order to at least reduce the proportion of the signal component which is not relevant to the meaning in the playback signal.
- the delay of the control signal is used together with the transmission signal. For this, unlike in FIG. 2, it is also an input signal to the memory 124.
- the buffered signal values of the transmission signal are passed on from the buffer device 12 to the playback device 14, as is also shown in FIG. 1, but the playback device is designed such that it is responsive to the control signal, the buffered television or radio program without the predetermined Reads the program, but at least when reading it tightens the time base of the signal values in order to reduce the proportion of the meaningless signal in the playback signal, to remove it completely.
- the Control signals as in the first or second embodiment described with reference to FIG. 1.
- those elements that have already been described with reference to FIG. 1 are provided with the same reference symbols.
- this differs from the exemplary embodiment shown in FIG. 1 in that the intermediate storage device does not receive a control signal, but rather is generated by a control signal generation 18a to the reading device 14 and the screen or loudspeaker as the playback unit 14a passed on.
- the complete program is stored in the intermediate storage device 12, that is to say the received television or radio program with the foreign broadcast component to be reduced in terms of time.
- the control with regard to the reduction of the predetermined broadcast is carried out in such a way that a control signal 16a generates a control signal 16a which is fed to the read-out playback device 14 which, depending on the received control signal 16a, by means of which said transmission component is identified, controls the playback.
- control signal by a user e.g. generates a television viewer or radio subscriber via a remote control or the like, namely when it receives the predetermined program, e.g. the commercial, recognizes. It is then possible either to skip the reproduction of the unwanted broadcast component or to carry out a kind of "fast forward" in which the storage and reproduction device 12, 14 is controlled, for example, in such a way that, for example, a reproduction acceleration by a factor of 10 is achieved.
- the images are then 400 msec apart in the stored signal (at 25 frames / sec).
- the real time t rea of the transmission signal s, n corresponds to the real time and the transmission time.
- the storage and reading device 12a summarized in FIG. 3 consists of the intermediate storage 12 - as described - and the reading device 14 - as described - supplemented by the separately drawn out screen 14a or, in the case of audio signals, a loudspeaker as a playback unit.
- Playback signal s w reproduced with a shifted time t w in accordance with the control of the memory and the reading device.
- control signal 16a from a user.
- the control signal 16a can also be from another signal source of a second
- Receiver 19 originate. It controls the reading device, which does not or does not completely read out certain segments of the stored transmission signal in the buffer in order to produce the playback signal s w .
- the reading takes place via the interface 12a, which in FIG. 2 leads to the memory 124 via the decoder 126.
- the relationship of the times can be easily explained in FIG. 3a.
- the real time t rea runs continuously and corresponds to the transmission time.
- the user watches a movie or listens to a radio program at time T1 with the playback time t w .
- This time has a time offset of ⁇ T compared to the time t R , which is currently being recorded in the buffer 12 in real time as the input signal s, n .
- Fig. 3 illustrates between two times T2, T3 an external display Tk, whose influence should be reduced in time, regarding the playback signal s w .
- the control via the control signal 16a enables the playback time t w to either run quickly over the time period Tk to the time T3 when the time T2 is reached, or to skip this section entirely because the real time has already migrated and the stored transmission signal between the time T3 and a recording time t R shifted further to the right is available. By hiding the time period T3-T2, the time difference ⁇ T is suddenly reduced.
- FIG. 4 This control can be seen in FIG. 4, where the playback signal s w is shown as a pointer to the memory area 12, which is shown as a FIFO memory.
- the time range Tk is shown hatched, which is to be reduced over time, which is done by suddenly changing the pointer position during reading 12a.
- the memory stores a large number of signal values at different, staggered times, which are denoted by s z (t t ), where i denotes the discrete sampled values of an analog or already digital transmission signal.
- FIG. 3 is intended to explain another example of the provision and use of the control signal which characterizes the third-party broadcast or the third-party share in the broadcast signal.
- this control signal is not transmitted synchronously (at the same time) with the transmission signal in real time t rea , and accordingly is not simultaneously stored in the memory 12 of the signal processing circuit 12a consisting of memory and read submission 12, 14.
- the control signal 16a is delivered, for example, via the Internet or another data network in information packets and processed in the control signal generating circuit 18a in such a way that the short data packets can be assigned to real time in a time memory 18b, or can be adapted to the new real time by recurring information packets.
- the transmission of the control signal thus leaves real time, but is processed at the receiving location so that it is able to identify the real time at the points at which the foreign component Tk is present in the buffer.
- discrete data points or times can also take over this task, which are provided by a computing circuit 18c in such a way that an assignment to the stored transmission signal can be identified by specifying the discrete start and end times of the foreign component stored in the memory.
- the subsequent assignment of the control signal 16a can also be carried out in a manner similar to FIG. 2, except that it is taken over directly into the memory 124 here, with time marks of real time subsequently being replaced by the same real time marks assigned control signal.
- This variant is a subsequent replacement of the stored transmission signal provided with real times by an identifying control signal 16a for identifying the foreign component.
- control signal 16a there is a non-time-synchronous transmission of the control signal which lags behind in time, but which is provided at least so early by the circuit 18a that it is read by the reading device 14 via the interface 12a before the intended reading of the foreign component is available.
- time memory 18b or the buffer memory 124 are separate memories or combined memories is at the discretion of the person skilled in the art.
- the device described can also help to bring the primary broadcast, which is interrupted by an external display, into a practically seamless assembly. It takes advantage of the fact that after the end of a third-party fade-in, the last scene of the interrupted primary broadcast is usually repeated to enable the viewer to re-enter the meaning and action of the primary broadcast as smoothly as possible, or the film in a scene similar to the content of the picture is continued, while the image content of the external display differs from it. Hiding the last scene that was sent twice can increase the playback quality because a double
- the device for example, by fast forwarding the user or by the control signal 16 or by pressing a start button for the automatic Interface search) signals that a third-party interruption has occurred, the device tries during playback of an earlier section of the program to automatically find the appropriate start and end points (interface) before or after the interruption due to the temporary storage of the program in memory 124 at the time of signaling an interrupt, both are fully available for comparison.
- the search for the interface of a film is carried out in such a way that a search is carried out backwards starting from the moment the signaling ends and a series of film pieces is compared for each film piece starting from the signaling point.
- the two pieces of film which have the highest correspondence of all examined combinations, represent the optimal interface between the primary transmission blocks, which were interrupted by the foreign component.
- an image after the end of the foreign component is loaded into a comparison unit 30 of a comparator 40, which here has an upstream small memory 31.
- Another film segment is also read out from the memory 124 before the external insertion and is fed to a second comparator input V2.
- the first comparator input V1 contains the first image after the external signal.
- the comparison unit V can now compare these two images in order to determine images of the same type at a time interval which can be seen from the graphic representation on the edge of FIG. 5.
- This signal represented ü (t) shows the correlation of the comparator inputs V1, V2, which at a maximum indicates that the time period T6 found is the one that was sent twice in the primary program, namely once before the interruption Tk and once after.
- the two images found represent the optimal interface between the transmission blocks before and after the interruption. Is shown within a predetermined search area, here in FIG. 5a, as area T4 before
- the measurement of the correspondence of two spaced-apart images or of two spaced-apart sound signals carried out in the comparator V can be carried out by comparing individual images in the case of the image comparison.
- This image comparison can e.g. be a pixel-by-pixel subtraction.
- the pair of images with the smallest difference then represents the time T6 sought and the definition of the optimal interface.
- two image scenes of equal length before and after the interruption Tk can be compared, as can be seen from FIG. 5b.
- the image sequences Q1 and Q2 there before and after the interruption are (shown one below the other in the time axis, but spaced apart in time according to FIG. 5a).
- a subtraction is also suitable as a measuring method for the comparison in the comparator 30, as was the case previously when comparing the individual images.
- Image features are measures that are generated from images or image scenes, represent the content compactly and are as different as possible for different images.
- Simple measures are e.g. an average or the variance of the brightness value in an image. More complex measures are also suitable, e.g. Texture features or checksums, the latter of which are otherwise used for error detection on data carriers.
- the comparator can compare 30 tone signals. Two equally long time intervals are compared.
- features can also be used here advantageously to the Reduce calculation effort in comparison 30.
- spectral characteristics in the sense of a Fourier transformation to form the same coefficients come into consideration as characteristics in the tone range.
- the memory 124 further outputs the stored signals to the playback device and the playback unit 14, 14a.
- a further read signal is taken out of the memory in the background, which uses data values of the stored signal at a different time location, as shown in FIG. 5a, such data values before and after an external display Tk present in the memory.
- the calculation can be carried out after the end of the external display .
- a search area T4, T5 is defined before and after the external display, within which the match is sought. We are looking for a picture or a sound or a picture sequence or a sound sequence before and after the external fade-in, which are identical.
- a short segment Q2 is selected in the temporal section T5 after the external display and written into the buffer memory 31.
- a signal corresponding to this is now sought, which is in the time range T4 before the overlay Tk.
- a segment Q1 of the same length is used, which is continuously moved further forward until identity is found. From this, the time interval T6, which has been transmitted twice, is calculated, so that the start of the time period T6 in the start area T4 and the end of the time interval T6 in the time area T5 must be joined together, for which purpose the reading device 14 is controlled accordingly.
- the aforementioned blanking takes place before the storage, for which purpose a further buffer must briefly store transmission signals in order to be able to find correspondence between transmission signals spaced in time. Since the start of the external fade-in is decisive in such a circuit variant, the last stored image of the primary program or the last stored tone sequence is compared with those tone sequences that recur after the end of the foreign fade-in. It is hidden longer than the external display lasts.
- the narrow areas T4, T5 which can typically be between 2 and 10 seconds, are available directly in the memory for determining comparison values.
- the playback is controlled by the reading device 14 so that no picture or sound signal is sent twice.
- the circuit technology is free to use more or less from the beginning or less or more from the end after the signals are redundant here.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU15464/00A AU1546400A (en) | 1998-10-07 | 1999-10-07 | Reducing the proportion of an extraneous element in a transmit program |
DE19982028T DE19982028D2 (de) | 1998-10-07 | 1999-10-07 | Herabsetzen des Anteils einer Sinnfremden Sendung in einem Sendeprogramm |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19846249A DE19846249C2 (de) | 1998-10-07 | 1998-10-07 | Verfahren und Vorrichtung zur Unterdrückung einer vorbestimmten Sendung |
DE19846249.2 | 1998-10-07 | ||
EP99115916.1 | 1999-08-12 | ||
EP99115916 | 1999-08-12 | ||
EP99119374A EP0993188A3 (de) | 1998-10-07 | 1999-09-29 | Verfahren und Vorrichtung zur Unterdrückung einer vorbestimmten Sendung |
EP99119374.9 | 1999-09-29 |
Publications (2)
Publication Number | Publication Date |
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WO2000021290A2 true WO2000021290A2 (de) | 2000-04-13 |
WO2000021290A3 WO2000021290A3 (de) | 2000-08-10 |
Family
ID=27218720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/003232 WO2000021290A2 (de) | 1998-10-07 | 1999-10-07 | Herabsetzen des anteils einer sinnfremden sendung in einem sendeprogramm |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU1546400A (de) |
DE (1) | DE19982028D2 (de) |
WO (1) | WO2000021290A2 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1274240A2 (de) * | 2001-07-04 | 2003-01-08 | Pioneer Corporation | Gerät und Verfahren zum Unterdrücken von Werbung |
WO2007113264A1 (de) * | 2006-04-03 | 2007-10-11 | Nokia Siemens Networks Gmbh & Co. Kg | Vorrichtung und verfahren zur aufzeichnung und zeitversetzten wiedergabe von sendungen |
EP2101499A1 (de) * | 2006-12-22 | 2009-09-16 | Panasonic Corporation | Rundfunkstationsgerät und aufnahme-/wiedergabegerät |
EP3232678A4 (de) * | 2014-12-12 | 2018-05-09 | Beijing Baidu Netcom Science and Technology Co., Ltd | Werbungsinformationsverarbeitungsverfahren, vorrichtung und einrichtung sowie nichtflüchtiges computerspeichermedium |
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EP0447293A2 (de) * | 1990-03-16 | 1991-09-18 | THOMSON multimedia | Empfänger zur Aufzeichnung von Fernsehsendungen |
US5241428A (en) * | 1991-03-12 | 1993-08-31 | Goldwasser Eric P | Variable-delay video recorder |
EP0713334A2 (de) * | 1994-11-17 | 1996-05-22 | Matsushita Electric Industrial Co., Ltd. | Verfahren und Vorrichtung zur Echtzeitaufnahme/-wiedergabe von Bildern, sowie Videoarchivsystem |
EP0726574A2 (de) * | 1995-02-09 | 1996-08-14 | Matsushita Electric Industrial Co., Ltd. | Gerät und Verfahren zur Aufzeichnung und Wiedergabe von Daten |
EP0762756A2 (de) * | 1995-09-11 | 1997-03-12 | Matsushita Electric Industrial Co., Ltd. | Fernsehsignalaufnahme- und -wiedergabeanlage |
US5668917A (en) * | 1994-07-05 | 1997-09-16 | Lewine; Donald A. | Apparatus and method for detection of unwanted broadcast information |
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1999
- 1999-10-07 WO PCT/DE1999/003232 patent/WO2000021290A2/de active Application Filing
- 1999-10-07 AU AU15464/00A patent/AU1546400A/en not_active Abandoned
- 1999-10-07 DE DE19982028T patent/DE19982028D2/de not_active Expired - Lifetime
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EP0447293A2 (de) * | 1990-03-16 | 1991-09-18 | THOMSON multimedia | Empfänger zur Aufzeichnung von Fernsehsendungen |
US5241428A (en) * | 1991-03-12 | 1993-08-31 | Goldwasser Eric P | Variable-delay video recorder |
US5668917A (en) * | 1994-07-05 | 1997-09-16 | Lewine; Donald A. | Apparatus and method for detection of unwanted broadcast information |
EP0713334A2 (de) * | 1994-11-17 | 1996-05-22 | Matsushita Electric Industrial Co., Ltd. | Verfahren und Vorrichtung zur Echtzeitaufnahme/-wiedergabe von Bildern, sowie Videoarchivsystem |
EP0726574A2 (de) * | 1995-02-09 | 1996-08-14 | Matsushita Electric Industrial Co., Ltd. | Gerät und Verfahren zur Aufzeichnung und Wiedergabe von Daten |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1274240A2 (de) * | 2001-07-04 | 2003-01-08 | Pioneer Corporation | Gerät und Verfahren zum Unterdrücken von Werbung |
EP1274240A3 (de) * | 2001-07-04 | 2004-04-21 | Pioneer Corporation | Gerät und Verfahren zum Unterdrücken von Werbung |
WO2007113264A1 (de) * | 2006-04-03 | 2007-10-11 | Nokia Siemens Networks Gmbh & Co. Kg | Vorrichtung und verfahren zur aufzeichnung und zeitversetzten wiedergabe von sendungen |
US8233771B2 (en) | 2006-04-03 | 2012-07-31 | Nokia Siemens Networks Gmbh & Co. Kg | Systems, devices, and/or methods for managing programs |
EP2101499A1 (de) * | 2006-12-22 | 2009-09-16 | Panasonic Corporation | Rundfunkstationsgerät und aufnahme-/wiedergabegerät |
EP2101499A4 (de) * | 2006-12-22 | 2010-07-21 | Panasonic Corp | Rundfunkstationsgerät und aufnahme-/wiedergabegerät |
CN101569191B (zh) * | 2006-12-22 | 2012-04-25 | 松下电器产业株式会社 | 广播台装置和记录重放装置 |
US8380038B2 (en) | 2006-12-22 | 2013-02-19 | Panasonic Corporation | Broadcasting station apparatus and recording/reproducing apparatus |
EP3232678A4 (de) * | 2014-12-12 | 2018-05-09 | Beijing Baidu Netcom Science and Technology Co., Ltd | Werbungsinformationsverarbeitungsverfahren, vorrichtung und einrichtung sowie nichtflüchtiges computerspeichermedium |
Also Published As
Publication number | Publication date |
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DE19982028D2 (de) | 2001-09-27 |
AU1546400A (en) | 2000-04-26 |
WO2000021290A3 (de) | 2000-08-10 |
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