Patent Application
20090080852
The invention relates to the field of video devices and more particularly to an apparatus, method and program product for selectively restricting access to or deleting portions of a recorded program.
It is often desirable for parents to control the content of broadcast, cable and satellite audiovisual programming viewed by their children. To accomplish this goal, V-chips and parental control products have been developed that block transmission of shows individually selected or matching content criteria codes selected by the parent. With these products, the blocking can be overridden by entering a code into either the television or set-top box. These solutions have, however, only allow a program to be blocked or viewed in its entirety.
Many programs that are of interest to children are generally acceptable to parents, but may contain specific scenes that are inappropriate for viewing by the children in the household. In such cases, the V-chip and parental control products only afford the parents with the options of blocking or allowing the generally acceptable programs that may contain specific objectionable scenes or content.
One alternative in this case is for the parents to pre-view the program and re-watch the program with the children, fast forwarding through objectionable scenes. This approach has several drawbacks. The parents must watch the program twice, once to identify objectionable scenes and again to fast forward through the objectionable scenes. Moreover, the parent must recognize the placement of the objectionable scene before reaching it in order to fast forward through the entire objectionable scene.
It is desirable to provide a way to limit or prevent viewing of objectionable content within a program while allowing viewing of the rest of the program.
In an exemplary embodiment, the invention provides a method for selectively censoring recorded program content while displaying a program. The method comprising the steps of: in response to a first input, identifying a first boundary; in response to a second input, identifying a second boundary; and censoring the content between the first boundary and the second boundary. A method for displaying a censored program excluding censored program content, comprises the steps of: playing a program for which a start point and an end point for censoring are identified; in response to reaching the start point, skipping program content; and in response to reaching the end point, resuming playing the program.
According to additional embodiments, the invention may provide an apparatus and a program product. The apparatus comprises: a processor adapted to execute a program of instructions; a program file of audiovisual content encoded on a memory; and a program of instruction encoded on a memory and comprising the steps of: playing a program; in response to a first input, identifying a first boundary for censoring program content; in response to a second input, identifying a second boundary for censoring program content; determining which of said boundaries is a start point; and saving the boundaries as a start point and an end point. The program product may comprise a machine readable media having encoded thereon: a first program instruction to play a program; a second program instruction to identify a first boundary in response to a first input; a third program instruction to identify a second boundary in response to a second input; a fourth program instruction to associate the first censoring boundary with the second censoring boundary; and a fifth program instruction to censor the content between the first boundary and the second boundary. Another program product may comprise a machine readable media having encoded thereon: an identification of a start point adapted to cause a program playing device to begin skipping content of a program; and an identification of an end point adapted to cause a program playing device to resume playing content of the program.
The features and advantages of the invention will be more clearly understood from the following detailed description of the preferred embodiments when read in connection with the accompanying drawing. Included in the drawing are the following figures:
The present invention provides a method, system, apparatus and program product for selectively censoring program content. In an exemplary embodiment of the invention, a user identifies a pair of boundaries, which enclose the content to be censored. For example, while viewing a program and recording the program to a recording device, such as a set-top box, a DVR, or the like, a user determines that a particular portion of the program should be censored. The user then provides an input to a processor which may be located in the recording device, at remote location in a distributed network, in a computer, or at another suitable location. The input may be entered through a user input device, such as a remote control unit, a keyboard, or any other suitable input device. In the example of a remote control, the input can be provided by depressing a special purpose key or any key temporarily assigned the input function.
In one or more exemplary embodiments of the invention, the user input may be provided while viewing the program in a normal play mode, in a fast forward mode, in a rewind mode, or any other mode which allows the user to ascertain the program content. While watching a program, a user can provide an input to identify one boundary of content to be censored and another input to identify the other boundary of content to be censored. In one or more exemplary embodiments one or more additional pairs of boundaries may be identified.
Referring now to
The processor 130 receives a signal or data stream containing program content. This signal or data stream may be, for example, a signal 2A, from a drive 110 used to read the program content from a portable memory device, such as a DVD, CD, or the like. Alternatively the signal or data stream may be a transmission signal 2B from a satellite receiver, cable connection, television broadcast, or the like. In another alternative example, the signal or data stream may be a pre-recorded data signal 2C from a memory 140 internal to or accessible to the device 100. Moreover the program may be recoded to memory 140 as a program file 141 as a recorded signal or data stream 3, or the program may be recorded to another memory separate from the program of instruction or the program may be presented through the processor 130 to a display and or speakers (not shown) via a program signal 4, or both.
The processor 130 also executes a program of instruction 143 which may be stored in memory 140, which memory may also contain the program file 143 and/or censoring files 142 as shown or may be stored in a memory separate from the program file 141 and/or censoring files 142 which will be described later. The program of instruction 143 may comprise instructions for identifying one or more pairs of start and end points for censoring program content, instructions for playing a program without censored content, or both, as will be described in detail below.
The program of instruction 143 may include steps to define censored content which may be enabled or executed while a program is displayed. These steps may comprise: in response to a first input, identifying a first boundary; in response to a second input, identifying a second boundary; and censoring the content between the first boundary and the second boundary. The step of censoring the content may include marking the start and end points with metadata on a recording of the program to cause the content to be skipped during replay of the program. Alternatively, the censoring step may include saving identification of the start point and end point, such as, for example, frame numbers, time stamps, images or image digests, or other identifying attributes which can be utilized during playback to cause the censored content to be skipped.
The program of instruction 143 may alternatively or additionally comprise steps to recognize the start and end points during playback of the recorded program and to skip the censored program content (i.e., the content between the boundaries). Thus, while playing a program for which a start point and an end point for censoring are identified, the program of instruction in response to reaching the start point, starts skipping program content, and in response to reaching the end point, the program of instruction resumes playing the program.
A system for recording and displaying programs excluding censored program content comprising a distributed network is shown in
A processor 231 is adapted to execute a program of instruction 232. The processor 231 and the program of instruction 232 may both be located in the client as shown in
An altered program file 233 may be saved to facilitate displaying the program without the censored content. For example, the censored content may be deleted. Alternatively, the censored file may have metadata inserted at the start point and end point for each instance of censored content, such that the processor 231 can skip the censored content. In still another alternate embodiment, the start point and end point may be identified by a frame number, a time stamp, or one or more images or image digests, saved on the altered program file 233. The altered program file may be saved in the client 230 as shown, or on the server or remotely.
In another exemplary embodiment, the start point and end point identifiers may be saved in a censoring file 234, which is separate from the program file 233, as shown in
A method for censoring program content is shown in
With the censor application enabled, the program is played (step 320). The program may be played for example in response to a user command or input. The program may be played in normal play mode, in fast forward mode, in rewind mode, or in any other mode which allows the user to ascertain the program content and determine any content that the user chooses to censor (i.e., that content to which the user wishes to prevent or limit access). The program can be played while it is being recorded for future use, or it can be played from a solid state memory or a memory drive, or the like.
A user provides an input at a boundary (i.e., the beginning or end) of a portion of program content to be censored. For example, while viewing and recording a program from a cable broadcast, a viewer determines that a particular portion of the content is not suitable for younger viewers who will be watching the recorded program. Accordingly, the user provides an input, such as depressing a button or key on a remote control having the censoring function assigned to it. The censoring function may be temporarily assigned by the program of instruction or the button or key may be dedicated to this function. The user provides another input at the other boundary of the content to be censored.
In an exemplary embodiment, the user identifies the boundaries in a specific order, while in another exemplary embodiment, the user may identify the boundaries in either order. That is, the user may first identify the end point. Thus, the user while viewing content determines content which the viewer desires to censor, and the user identifies a boundary when the objectionable content is completed (i.e., the end point). The user can then rewind the recorded program until the beginning of the objectionable content is reached (i.e., the start point) and identify the other boundary. It should be noted that in an exemplary embodiment the boundaries may be identified while in a normal play mode, a fast forward mode, a rewind mode, or any other mode that allows the user to ascertain the content of the program. Moreover, the censoring application may be executed while a program is simultaneously viewed and recorded or while the program is viewed from a recorded media.
The application receives a first input from the user (step 330) when the program reaches a point at which the user wishes to begin or end the censoring. In response to the first input from the user, the application identifies a first boundary (step 340). The first boundary, as described above can be the point in the program content when the censoring is to begin or the point where the censoring is to end. Also, the first boundary may be identified by a frame number corresponding to one of a sequential series of frames that are displayed in order to play a program. Alternatively, the first boundary may be identified by a time stamp, by one or more images or image digests, or by any other means that serves to differentiate a specific point in the program. In et another alternate identification, the first boundary may be identified by inserting metadata onto the program at the boundary point.
The application receives a second input from the user (step 350) when the program reaches a point at which the user wishes to begin or end the censoring (i.e., the opposite boundary point for the censored content from the first boundary). In response to the second input from the user, the application identifies a second boundary (step 360). Together, the pair of the first and second boundaries defines the censored content between them.
In an exemplary embodiment, the first and second boundaries are associated with each other (step 370). Thus, for example, when a first boundary is identified in step 340, the application waits for a second boundary to be identified to create a pair of boundaries. In this way, the application can associate the two boundaries and determine which boundary is the start point and which boundary is the end point by comparing frame numbers, time stamps, or the like.
The content between the first and second boundaries is censored (step 380). The content may be censored in any manner which prevents or limits access to the censored content when the program is replayed from memory. For example, a portion of program content may be deleted after the first boundary is identified and until the second boundary is identified, or the program content between the boundaries may be deleted after the pair of boundaries are identified.
Alternatively the program content between the first and second boundaries may be censored by enabling an apparatus or system replaying the recorded program to locate the start and end point boundaries during playback and selectively skip the program content between the start point and the end point, as will be described below. The start point and end point may be located by inserting metadata on the program at the start point and the end point, the metadata being readable by the apparatus or system playing the program from memory.
In another exemplary embodiment, the start point and end point are located by saving a unique parameter of the boundary points, such as frame numbers, time stamps, or images or image digests. For example, a program that plays at 30 frames per second may have each frame identified by a unique sequential frame number. The frame numbers can be used by an application to cause an apparatus or system for playing the program to identify a particular point to start or end a playback. Thus, censoring content between the first and second boundaries may comprise saving the frame numbers for the boundaries to be used during playback to skip frames between the pair of boundaries. Similarly, the unique parameter may be a time stamp which is saved during recording of a program to identify the time at which it was originally broadcast. The time stamps may be saved and used by the application to cause the program content between the boundaries to be selectively skipped.
Yet another unique parameter for identifying boundary points is to save an image or an image digest from one or more frames at the start and at the end of a portion of program content to be censored. An image is a digital representation of a frame or a refresh cycle from a program, and a digest of an image is a smaller digital record having less data but containing data usable for image matching such as a thumbnail with fewer pixels but the same pattern or another version of the image having less data. Inages or image digests corresponding to the start point and end point for censoring can be saved. By comparing images during playback with the saved boundary images or image digests, the application can cause the program content between the boundaries to be selectively skipped.
As illustrated in
In response to the third input, the application identifies a third boundary point in the program content (step 394). Similarly, a fourth input is received from the user (step 395) and a fourth boundary is identified (step 396). Thus, the third and fourth boundaries comprise a second pair of boundary points identifying a second portion of program content to be censored between the boundary pair. The third and fourth boundaries are associated as a boundary pair (step 397), and program content between the boundary pair is censored (step 398).
The user may continue to provide inputs to identify boundary pairs, thereby censoring additional portions of program content. Each pair of boundaries is associated to define censored content there between. As with the program content between the first boundary pair, the content between each pair of boundaries may be censored by the application using deletion, saving boundary identification for use by an application during playback to skip the censored content, or by inserting metadata to cause the censored content to be selectively skipped.
Another exemplary embodiment of the invention is shown in
In the exemplary embodiment illustrated in
If the application determines in step 445 that the first boundary is not a start point for censoring a portion of program content, then the first boundary is saved as an end point (step 448). As with the start point, the end point could alternatively be identified by inserting end point metadata onto the recorded program file at the first boundary.
As the user continues to view/listen to the program, the user provides a second input at the beginning/end of the program content to be censored. The application receives the second input (step 350) and, in response, identifies a second boundary (step 360). The second boundary is associated with the first boundary (step 370) to form a pair of boundaries that define censored content there between. Each portion of censored content has a beginning and an end, and therefore boundaries need to be associated into pairs, so that each pair defines a single portion of censored content.
The application determines through association of a pair of boundaries whether the first boundary in the pair was a start point (step 475). If so, then the second boundary is saved as an end point (step 476). If not, then the second boundary is saved as a start point (step 478). Thus the pair of boundaries comprises a start point and an end point for censoring. As described previously, the start point and end point may be identified by insertion of metadata rather than being saved. Also, the start point and end point may be saved as frame numbers, time stamps, or images or image digests.
Having identified a pair of boundaries and saved them as a start point and an end point, the application censors program content from the start point to the end point (step 481). This censored content may be deleted, or the content may be censored by selectively skipping it when an application recognizes the start point and resuming presentation of program content when an application recognizes the end point.
The user subsequently provide a second input, and the application receives the second input (step 350). In response to the second input, the application identifies the current frame number as the second boundary (step 561). That is the frame number of the frame or screen image that is being displayed when the second input is received, is calculated or captured and the second boundary is set at this frame number. The first and second boundaries are then associated to form a pair of boundaries (step 370).
The application compares the first and second boundaries to determine which is the lower frame number (step 585). If the first boundary is the lower frame number, then the first boundary is saved as a start point (step 586) and the second boundary is saved as an end point (step 587), defining censored program content from the start point to the end point to be selectively skipped during replay. If the first boundary is not the lower frame number, then the second boundary is saved as a start point (step 588) and the first boundary is saved as an end point (step 589), defining censored program content from the start point to the end point to be selectively skipped during replay.
The application receives a second input (step 350). In response to the second input, the application identifies a second boundary (step 360) and associates the first and second boundaries (step 370) to form a boundary pair. The application determines whether the boundary pair already has a start point (step 675) based on the earlier determination for the first boundary. If so, then the application inserts end point meta data at the second boundary (step 676). If not, then the application inserts start point meta data at the second boundary (step 678).
The application queries the user on whether or not the first boundary is a start point for censoring (step 745). If so the first boundary images or digests are saved as a start point (step 781). If not, then the first boundary images or digests are saved as an end point for censoring (step 782). The start point and end point images or digests may be saved to a censoring file which can be stored and shared independently of the program content. For example, censoring files may be saved and distributed on a web site for parent interaction or other groups that might be interested in sharing or selling censoring definitions for program content.
Similarly, a second input is received (step 350) and in response a second boundary is identified by capturing images or digests for one or more frames or the like (step 760). The first and second boundaries are associated as a boundary pair (step 370) and a determination is made of whether or not the previous boundary was the start point (step 375). If so, then the second boundary is saved as an end point (step 783). If not, then the second boundary is saved as a start point (step 784).
While the program is playing, an apparatus or system executes an application for censoring programs, and the application checks each frame for start censoring metadata (step 915). If the frame does not contain the start censoring metadata, the program continues to play and the application continues to search for the start metadata. If the frame does contain the start metadata, then the application causes the program playing apparatus or system to skip the current frame (step 920) and the application begins checking each frame for end censoring metadata (step 925). If a frame does not have the end censoring metadata inserted onto it, then the application again causes the program playing apparatus or system to skip the current frame (step 920) and check the next frame for the end censoring metadata (step 925).
If the frame does contain the start censoring metadata in step 925, then the program resumes playing the program content (step 930), and the application again searches each frame for start censoring metadata (step 915). Thus, the program content is played to the end of the program with a variable number of portions of program content being censored so that the censored content is skipped and not played.
If the censoring boundaries and start and end points are frame numbers, then an application executed by the processor 130 or 231, calculates or captures each frame number as that frame is displayed (step 1020). Similarly, if the boundaries and start and end points are time stamps, then a time stamp is calculated or captured, and if the boundaries and start and end points are images or digests, then an image is captured for each frame.
The application compares the calculated or captured attribute (e.g., frame number, time stamp, image, digest, etc) to the saved start point (step 1025). For example if the attribute is frame numbers as illustrated in
If the current calculated or captured frame number does match a saved start point, then the application skips the current frame (step 1030), meaning that the current frame is not played on the display/speakers. The application calculates or captures each subsequent frame number (step 1040) and compares the calculated or captured frame number to the saved end point (step 1045).
If the calculated or captured frame number matches the saved end point, then the application causes the program playing apparatus or system to resume playing the program (step 1050). That is, the current frame is displayed on a display, such as a television, speaker set, etc., and the application goes back to capturing frame numbers (step 1020) and comparing them to saved start points (step 1025).
If the calculated or captured frame number does not match the saved end point, then the application skips the frame (step 1030) and calculates or captures the next frame number (step 1040).
If the censoring boundaries and the start ad end points are time stamps, then the application compares the calculated or captured current time stamp to the saved start point time stamp. When a match is found the current frame of content is skipped and the application searches for the corresponding end point time stamp. Similarly, if the start point is an image or digest of one or more frames of content, then the application captures the current image or digest for one or more current frames and compares the captured images/digests to the saved start point. The comparison may use any of a number of known image matching methods. Again upon a match, the application skips the current frame and begins capturing attribute data (e.g., images/digests) and comparing them to the saved end point images/digests.
In an exemplary embodiment of the invention, a user can choose whether or not to display censored program content. For example, the user may be prompted by a menu when a censoring file is available for a selected program or when the program has been censored by insertion of metadata. The menu may allow a user to override the censoring by entering a password, for example. This password may be the same as a password used for blocking programs, such as a v-chip password or the like.
In an exemplary embodiment, the invention may be realized in the form of a machine program product comprising a machine readable media. Encoded on the machine program product are program instructions causing a machine to play a program of audiovisual content, to identify a first boundary in response to a first input, to identify a second boundary in response to a second input, to associate the first censoring boundary with the second censoring boundary, and to censor the content between the first boundary and the second boundary.
An exemplary embodiment of the invention may be realized in a machine program product comprising a machine readable media having encoded thereon: an identification of a start point adapted to cause a program playing device to begin skipping content of a program; and an identification of an end point adapted to cause a program playing device to resume playing content of the program. Such program product may be readily shared or distributed over the internet independently of the program content.
The foregoing drawing figures and descriptions are for illustrative purposes and are not intended as limitations. Rather variations and combinations of the features are intended within the scope of the invention.
