TWI289409B - Content management for high definition television - Google Patents

Abstract

A high definition television video content management and/or copy protection method and apparatus are achieved by modifying portions of one or more channels of an HDTV (high definition television) signal. These modifications are generally in the blanking intervals but can extend into the overscanned portions. In one version, the signal modification defines tags or trigger bits for a content control system. This modification may follow the HDTV tri-level sync (synchronization) pulses for example, and it may occur in at least one of the HDTV video channels. In another version, portions of the tri-level sync pulse are modified to cause a reference sensing circuit such an AGC system (in a receiving device such as a video recorder) to produce an erroneous output. Optionally, a signal may be added or inserted following the modified tri-level sync pulses. In another version, tri-level pseudo sync pulses are added in blanking or overscanned intervals. These tri-level pseudo sync pulses may be asymmetrical and may be followed by a signal. Further, any of the above modifications or signals or sync signals may be modulated (e.g., amplitude, position, pulsewidth). Also provided are defeat methods and apparatus to reduce effects or to modify results of the modification processes.

Description

1289409 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The disclosure of the present invention relates to video, and more particularly to high-quality televisions and, more particularly, to content management for high-quality televisions , which includes copy control. [Prior Art] In the United States, high-definition television (HDtv) is currently being introduced commercially. Many American television stations broadcast high-definition television programs, and consumers can purchase HDTV reception equipment. HDTV is a digital television (DTV). This means that signals are usually transmitted in digital format and require a special receiver. The two HDTV formats approved by the United States are 1080i and 720p. L〇8〇i refers to a TV image with a 1〇8〇 video scan line, • Each scan line has 丨92〇 horizontal pixels. 1 refers to the analog analogy (NTSe, NTSC) TV. HDT is similar to analog TV. In the same HDTV format, for example, PAL, SECAM, interlaced scanning is used to alternately send odd and even lines in each frame to form a field. The 72 〇p format provides an image with 720 vertical lines, each with 128 水平 horizontal pixels. p refers to the progressive scan of the computer monitor. HDTVi replaces the standard analogy (in the US HDTV is also being introduced to countries outside the US, despite the class

Ordered as of May 2006,. The United States Federal Communications Commission (FCC) All broadcast stations in the United States will broadcast digital 106078.doc 1289409 television signals instead of analog TV signals. As is well known, in analog (e.g., NTSC) television, each video (horizontal) scan line includes a horizontal blanking interval that includes a so-called horizontal sync (sync) pulse. A so-called valid video occurs between these horizontal masking intervals. The end of each video field also includes a vertical blanking interval. These blanking intervals are used to provide timing signals for the image and receiver operation. A well-known horizontal sync pulse in analog television includes a leading edge immediately preceding the horizontal sync pulse and a trailing edge following one of the horizontal sync pulses. In analog televisions such as NTSC, PAL, and SECAM televisions, the horizontal trailing edge also includes a color burst signal as a color timing reference signal. In analog televisions, the vertical occlusion area is much longer than the horizontal occlusion interval, and it extends the equivalent of a certain number of horizontal scan lines over the duration. The vertical blanking interval includes a relatively long vertical sync pulse followed by a certain number of so-called equalization pulses. In analog televisions, the horizontal sync pulse contains only two levels, which correspond to a zero amplitude pulse or a blanking level, and the other is a lower amplitude pulse at the top level. However, for HDTV, one of the sync pulses has been defined to add a third level, thus providing a so-called three-bit quasi-horizontal sync pulse. This initially includes a lower negative pulse (e.g., a sync top level) followed by a higher positive pulse that intersects the -mask level. Due to &, the three levels provided are low, high and blank. The positive pulse in the three-bit quasi-synchronous pulse is higher than the blanking pulse. Therefore, the three-bit quasi-synchronous pulse is used for HDTV_defined as defined by the United States and used by other countries. It should be noted that HDTV typically includes three channels and is therefore a type of composite video. For example, 106078.doc 1289409, these channels refer to gamma (brightness), chrominance channel suppression (chrominance). The 丫 (brightness) channel is sometimes referred to as a green channel, and Pb is sometimes referred to as a blue channel, and

Pr is sometimes called a red channel. Of course, other types of multi-channel video systems can be used. It should be noted that although the signal transmission in HDTV is digital, a large portion of the signal processing is effectively generated in the analog domain, and thus the waveform of the video signal of the HDTV is conventionally drawn, which is substantially similar to Indicates the waveform drawn by the analog TV signal. This convention is described below. An exemplary three-bit quasi-synchronous pulse for an HDTV has a zero volt obscuration level, a -0.3 volt negative portion, and a +0.3 volt forward portion, followed by a trailing edge region, and then an effective one. Video area. As is typical in analog televisions, each scan line repeats three levels of quasi-horizontal sync pulses to create a complete enamel video frame. In addition, the synchronization and synchronization in high-definition HDTVs is slightly different from that of analog TVs. For analog TVs, when the TV tries to relock to sync (state), the loss of synchronization causes the image on the screen to scroll and distort. However, a high quality television receiver that is essentially a digital device can have different operations. In one example, on the screen, when the loss is synchronized, one of the images may be green flashed or a series of green frames may be displayed due to ongoing synchronization losses. In another example, loss of synchronization in the HDTV signal can cause the display to turn off. The same well-known technology in the analog TV and television field is what is commonly referred to as content management, one aspect of which is copy protection. Examples of copy protection are disclosed in U.S. Patent Nos. 4,631,6, 3, the entire disclosure of which is incorporated herein by reference. These methods generally describe a method and apparatus for processing a video signal to prevent the use of such video signals for acceptable video recording. A method of inactivating such a copy protection process is also known, for example, in U.S. Patent No. 4,695,901, the entire disclosure of which is incorporated herein by reference. Another method of preventing the generation of an acceptable video recording is the disclosure of U.S. Patent No. 4,819,098 to Ryan, which uses a cluster modification for a video signal. In general, such copy protection techniques and devices modify a standard video signal such that the resulting video signal is readily displayed on a display device (a television or monitor), but when provided to a video recorder such as a tape recorder The video recorder can cause distortions in any copies obtained from the video signal by the video recorder, resulting in an unacceptable copy that cannot be viewed later. The copy protection in this case includes a technical component to make the copy unobservable or viewable on a conventional display device when the professional copy is generated using a conventional record. A broader range of content management also includes so-called adaptive devices designed to include circuitry that detects the presence or absence of a particular signal in a received video signal. The presence (or absence) of the particular signal is used as an instruction to the receiving device, thereby enabling or preventing the recording behavior. In some cases, this includes generational copy management, whereby first-generation replicas can be made, but subsequent generations or duplicates are prevented. See, for example, U.S. Patent No. 6,701,062 to Talstra et al., which is incorporated herein by reference. This copy management can be applied to digital video signal types used on video media such as DVDs. These more advanced copy control systems typically require special circuitry and/or software in the receiving device to detect and resolve 106078.doc 1289409 ♦ · Translate special information provided in video signals for content management purposes. However, in this regard, there is no such method for HDTV or for digital broadcast television. Of course, in this case, the broadcast includes not only the conventional broadcasts but also cable broadcasts, satellite broadcasts, and the like. These methods do not address the specific configuration of the HDTV video signal, or the difference between the HDTV and, for example, an analog television signal. SUMMARY OF THE INVENTION In one embodiment, a tag signal or trigger bit is added or inserted after at least one three-bit pulse in the HDTV video for purposes of content control or copy protection. For example, a selected number of pulses are added to a vertical blanking interval in one of the HDTV video channels (such as a redundancy (Y) channel) to define instructions to the device for content control purposes. In addition, a selected number of pulses of another video channel, such as a chrominance (Pb and/or pr) channel, can also carry information (instructions) for content control. Here, a typical addition signal can be at least one pulse. For example, in the Y channel, the added signal may be a positive pulse located in the leading edge and/or trailing edge region of the three-bit quasi-synchronous pulse. For example, in the channel or the channel, the added signal may include a positive pulse and/or a negative pulse. In particular, in the Pb or Pr channel, the blanking level is at 5% of the maximum voltage range (relative to 〇% in the Y channel), so the leading and/or trailing edge areas can be carried Positive or negative pulse. Similarly, the added signal can include a color burst signal loop. Content control information is transmitted based on the number of cycles, their phase, duration, and/or frequency. The above signals and pulses can be further modulated. The modulation can also be part of a method of implementing a valley control by using 106078.doc -9- 1289409 for information on content control and deductions. For example, the circuitry and/or software in the adaptive device of the video recorder interprets (decodes) the instructions to control the subsequent content of the video content (4). Content Control - The instance is Add - Group " False " Three-level quasi-syntax = pulse (for example, not located according to the HDTV standard), when an adapted (via a specific adaptation) video recorder receives the group "false" When the three-bit quasi-synchronization pulse is issued, it commands the recorder not to record the accompanying video. Another example of content control is the well-known CGMS (Replication Generation System), which is based on generational control of copying behavior. This content control requires collaboration between a video content provider (e.g., a dvd vendor, a broadcast or a messaging authority, etc.) and a manufacturer of an adaptation facility (e.g., a videomechanism manufacturer, a PVR, an interface device, or the like). In another embodiment, one or each of the HDTV three-bit sync pulses can be modified. For example, the positive (or negative) portion of a three-bit quasi-synchronous pulse can change its level. An example of this is to reduce or increase the amplitude of at least a portion of the positive (or negative) pulse of the three-bit quasi-synchronous pulse. The information is transmitted to a content management control system or a portion of a copy protection signal is generated based on the selected two-bit quasi-synchronous pulse and/or the level of the portion of the modified portion of the three-bit quasi-synchronous pulse. It should be noted that a change in position and/or pulse width may occur in one of the negative and/or positive portions of one or more selected two-bit quasi-synchronous pulses; and such modifications may convey information for a content control system, or may Used as at least part of a copy protection signal. In this case, copy protection refers to the above-mentioned well-known technique in the field of changing the video of another standard video signal such that a conventional receiving device such as a video recorder cannot technically reproduce a useful copy of the video. The copy protection of this situation 106078.doc -10- 1289409 does not require an adaptation to the video recorder (or other adaptive receiving device) or any special adjustments to be effective. In another embodiment for content control and/or copy protection, the video signal is modified such that the erroneous result flows down the (receiving) facility that senses the reference portion of the video signal. The reference portions may include modifications to the positive pulse of the three-bit quasi-synchronous pulse and/or the amplitude of the subsequent trailing edge region. For example, on the selected scan line, increasing the level of the positive pulse of the three-bit quasi-synchronous pulse and/or adding a pulse (signal or waveform) to at least a portion of the trailing edge region can affect a receiving device (eg, The AGC (Automatic Gain Control) system of the video recorder, video signal distribution network, and video signal transmitter, but it is displayed in video. Also prepared to produce a faint scene> In addition, a copy protection or content control signal may be defined by adding or inserting a three-bit pseudo-synchronous pulse or a three-bit quasi-synchronization pulse that may have a modified portion. As mentioned above, the false synchronization of this case refers to the processing for copy protection well known in the analog television field, in which a pulse having the same configuration as the conventional horizontal sync pulse is added to the blanking interval (usually For the vertical blanking interval, the process of recording a video signal such as a VHS tape recorder is interrupted, and the television or monitor does not have the same interruption effect.纟 A signal with three quasi-pulses added can be followed by an added false sync pulse. Since there are up to three video channels (γ, pb, pr) in HDTV, it is possible to modulate or enable the addition of pulses independently or independently of each channel. For example, independently modulating or enabling a channel may have the advantage of facilitating copy protection and producing a more disruptive effect on playback. For example, if the AGC time constant is approximately 〇5 s (2 Hz), then adding pulsing between the channels in the form of 106078.doc _ 11 _ 1289409 or modulating the pulse may result in γ The flutter channel (eg, the entire image) fluctuates during playback at an effective rate of 6 更, which is more effective in copying shame. Of course, other frequencies can be adjusted to modulate the pulse or waveform. Also note that it has been found In some component monitors, such as HDTV displays, moving the sync signal in the gamma channel causes the last display to be turned off. It is therefore possible to create a display control system that, for example, moves the Y channel relative to other chroma channels, Use it as a way to turn off some of the monitors or to view images that are less visible. To return to normal operation, at least a portion of the gamma channels are shifted back in time, or at least a portion of the chrominance channels are Move over time to increase the observability of the image. Any form of three-digit pseudo-synchronous pulse or signal or one of the following waveforms (for example, two-bit quasi-synchronous signal or sync signal) can be used Control. In experiments using commercially available HD monitors, it has been found that for some tft (thin film transistor) monitors, the overscan area is at least 2 horizontal scan lines and for some CRT (cathode ray tube) monitoring For the device, the overscan area is 3 scan lines. This means that the above modification can be done on a video line outside the vertical mask area (for example, on a valid portion of the video field or at a selected level). (without spacing). (Over-scanning in the video field means: because a valid video scan line is at the (most) top or bottom of the image or at a portion on the right or left side of the image, resulting in a particular TV or The active video scan line is not displayed by the monitor.) Similarly, the above signals may include position separation modulation, pulse width modulation, frequency modulation, phase modulation, and/or amplitude modulation. Similarly, the above signal may include three digits. The fall of the trailing edge (or leading edge) region of the quasi-synchronous pulse, such as U.S. Patent No. 5,63, to Ryan et al., incorporated herein by reference. A similar description of analog television exists in No. 3,927. Another embodiment for copy protection (for example, a personal video recorder of the type Tiv. or a digital video recorder such as a hard disk or a dvd recorder or a digital tape recorder) The inventors have found that the "gray pulse" in the region along the selected line is sufficient to cause temporal instability of the recording behavior on playback (e.g., playback from a digital recorder). The video signal has improved playback performance compared to the analog television copy protection 2M〇ri〇 process (see US Patent No. 4, 1, 575, No. 5, to Modo et al.). Because it uses a gray level quasi pulse instead of the white level pulse of Morio. In this case, the gray pulse/signal usually refers to a signal that is lower than the peak white level. For example, the selected duration in the region following the trailing edge region or the end of the sync signal is 30% to 7〇%. This "pulse" can be an arbitrary waveform with an average value below the average peak white level. The use of gray level quasi pulses is applied to HDTV signals for copy protection (and/or content management). In addition to the above methods of modifying video signals, there are also associated devices for implementing this method. In an embodiment, the apparatus includes an input port adapted to receive a digital television standard that generally follows, but is not limited to, the HDTV standard and has a correlation interval with each of the video signals. One of the two quasi-synchronous pulses is a video signal. Additionally, the apparatus includes a processor coupled to the input port, and the processor modifies a portion of the video signal associated with at least one of the three-bit quasi-synchronization ports. Accordingly, the video signals of the name and the second are modified to prevent the subsequent recording of the message and/or the type of signal carrying information about controlling its subsequent use. In addition, the device 106078.doc • 13· 1289 409 includes an output port coupled to one of the processors to output the modified (e.g., copied) video signal. The modification may include modifying at least one three-bit quasi-synchronous pulse, and the modification may occur in at least one of the video signal liberation or chrominance channel. Additionally, the modification can include reducing or increasing the amplitude of the trailing edge of the three-bit quasi-synchronous pulse. The modifying can include reducing the amplitude of the trailing edge to at least 20% below the peak white level of the video signal. Additionally, the modifying can include changing the amplitude of a portion of the three-bit quasi-synchronous pulse such that the positive and negative portions of the pulse are asymmetric. Additionally, the modification can include changing at least one of a position, an amplitude, or a width of the three-position quasi-synchronous pulse. Additionally, the modifying can include modifying a plurality of three-bit quasi-synchronous pulses in the video signal, wherein the modification of the pulses differs between different scan (horizontal) lines of the video signal. Moreover, the modifying can include adding at least a portion of the at least one pulse to the blanking interval. The add pulse can be extended into one of the active video portions of the video signal scan line. The active video portion can be in an overscan portion of a field of the video signal that implements the modification. Additionally, the modifying can include adding the pulse in one of the masking intervals before or after the position of the three-bit quasi-synchronous pulse. The modification also includes adding the pulse to at least one of the luminance or chrominance channels of the video signal. The add pulse can be part of a positive or negative pulse and can have a configuration of three bit quasi-synchronous pulses. Similarly, the modification may include: (iv) adding a three-bit quasi-synchronous pulse to the leading or trailing edge. 106078.doc -14 - 1289409 Additionally, the modification may include adding a plurality of pulses to the blanking interval. The 5th modification may include: adding a pulse to the plurality of blanking intervals, wherein one of the added pulses is different between different scan lines of the video signal' and the different features may be the position, amplitude, and At least one of a width or a number of added pulses. In addition, the addition pulse may be a gray level pulse added to the trailing edge portion of one of the two-bit quasi-synchronous pulses. The duration of the addition pulse can be one-third to two times the three-bit quasi-synchronous pulse associated therewith. In addition, the digital television standard can be the HDTV standard. The digital standard can be 720 line progressive scan or 108 line interlaced scan. The signal portion modified by the device can at least partially define a predetermined command for content management (following) of the video signal. Alternatively, by causing an inductive system of a device receiving a video signal to generate an error output, the modified portion of the signal can be prevented from subsequently recording the video signal. The modified portion can be in at least two channels of the video signal. In this case, the modifications of the modified portion of the video signal differ between the two channels. Alternatively, the modified portions may be in a selective scan line of the video signal in a valid video adjacent to the vertical occlusion interval of the video signal. Furthermore, the « input portion can be adapted to receive three channels of the video signal, which include, for example, one luminance and two chrominance channels. The output port can also be adapted to output three channels of the modified video signal. In addition, the apparatus including the processor can include a reference signal detector coupled to the input port and having a round trip. In addition, there may be a memory coupled to the input (4) of the reference signal (4) and adapted to store 106078.doc -15- 1289409 a plurality of values associated with the modified portion of the video signal; and a mixer' It is connected to the input portion of the processor and the memory, and one of the mixer outputs is coupled to the output port of the device. Additionally, there may be at least one counter associated with the memory. Other embodiments are various failure methods for modifying or reducing the effects described above or changing the results of a content control system, and associated failure devices, which are also used to modify or reduce such effects or to alter the results of a content control system. The failure methods include: receiving a video signal that normally follows a digital television standard and having a three-bit quasi-synchronization pulse in the blanking interval of the video signal, wherein the video signal has been changed in advance as described above. The portion of the video signal associated with the pulse to prevent recording of the video signal or to carry information about its usage control. Additionally, the failure method includes modifying the portion of the received video signal associated with at least the three-bit quasi-synchronization pulses to allow subsequent recording of the video signal or to allow information regarding its usage control to be changed. The modification or failure includes at least one of the modified two-bit quasi-synchronization pulses. Additionally, the modification may occur in at least one of a luminance or chrominance channel of the video signal. The modification may include: reducing or increasing the amplitude of the three-bit quasi-synchronous pulse to a reference level. The modification may further comprise: raising the amplitude of the trailing edge from at least 20% below the peak white level of the video signal to a reference level. The modification may further comprise: changing the amplitude of a portion of the three-bit quasi-synchronous pulse such that the forward portion and the negative portion are symmetric rather than asymmetrical. The modification may further comprise: changing at least one of the position, amplitude or width of the previously changed three-bit quasi-synchronous pulse to a reference level. 106078.doc • 16- 1289409 Additionally, the method can include further modifying a plurality of previously changed three-bit quasi-synchronous pulses in the video signal, wherein the changes are different between different scan lines of the video signal . Additionally, the modification can include deleting or attenuating at least one pulse located in the blanking interval. In addition, the deletion or attenuation of the pulse

The pulse can be extended into one of the active video portions of the video scan line. The active video portion can be an overscan portion of one of the fields of the video signal. The modification may include deleting or attenuating pulses in the blanking interval before or after the three-bit quasi-synchronous pulse. Additionally, the modifying can include removing or fading the pulse from at least one of the luminance 5 chrominance channels of the video signal. In addition, the deleted or attenuated pulse has a -forward or negative portion before the pulse is deleted or attenuated. Furthermore, the deleted or attenuated pulse has a configuration of three-bit quasi-synchronous pulses before the pulse is deleted or attenuated. Additionally, the modification can include deleting or attenuating pulses located in the leading or trailing edge portion of the three-bit quasi-synchronous pulse. The modification may include deleting or attenuating a plurality of pulses located in the blanking interval. The modification may include: deleting «subtracting pulses in a plurality of blanking intervals, the characteristics of the deleted or attenuated pulses being different between different scan lines of the video signal before the pulse is deleted. The different feature can be at least one of the position, amplitude, width or number of pulses. In addition, before the deletion or attenuation of the pulse, the rush may be the duration of the pulse of the three-bit quasi-synchronization pulse: the duration of the three-bit quasi-deletion or fading Three 106078.doc

-17· 1289409 One to two times. In addition, the digital television standard can be a high definition television (HDTV) standard. The standard can be one of a 720 line progressive scan or a 1080 line interlaced scan. The received video signal information can at least partially define a predetermined command for content management of the video signal. In addition, the recording of the video signal can be prevented by causing an inductive system and a device receiving the video signal to generate an error output. The changed portion of the video signal can be in at least two channels of the video signal. The changes between the two channels of the video signal may be different. The changes may be in the selective scan line of the video signal and include an active video adjacent to the vertical blanking interval of the video signal. The present invention also contemplates an associated device for disabling or modifying the above modifications to reduce or eliminate their effects or to alter their effects. Accordingly, an apparatus for performing the above method generally includes an input port adapted to receive a video signal that generally follows a digital television standard and has a three-bit quasi-synchronous pulse in the blanking interval of the video signal, which has been previously changed The three-bit quasi-synchronous pulse is associated with a portion of the video signal and, in turn, does not have to fully comply with the digital television standard. The apparatus also includes a processor that interfaces to the input port and modifies a portion of the received video signal associated with the at least one three-bit quasi-synchronous pulse to allow subsequent recording of the video signal and/or to allow for changes thereto Use control information. The apparatus further includes an output port 其 connected to the processor and adapted to output the modified video signal. The modifying can include modifying at least one of the previously changed three-bit quasi-synchronous pulses. In addition, the apparatus is capable of implementing each of the various features described above in relation to the method of modification 106078.doc 18 - 1289409. These features include the following.

The modification may occur in at least one of the luminance or chrominance channels of the video signal. The modification may include decreasing or increasing the amplitude of the trailing edge of the three-bit quasi-synchronous pulse to a reference level. The modification may include increasing the amplitude of the trailing edge from at least 2% of the peak white level of the video signal to the reference level. The modification may include changing the amplitude of a portion of the three-bit quasi-synchronous pulse to be symmetric about its forward and negative portions. The modifying may include changing at least one of the position, amplitude or width of the previously changed two-bit quasi-synchronous pulse to the reference level. The processor in the apparatus can further modify a portion of the previously changed three-bit sync pulse in the video signal, the changes being different between different scan lines of the video signal. Additionally, the delta modification can include deleting or attenuating at least one pulse located in the portion of the blanking interval. The deleted or attenuated pulse can be extended into one of the active video portions of the video signal scan line before the pulse is deleted or attenuated. The active video portion can be overscanned for one of the fields of the video signal. The modification can include deleting or attenuating pulses located in the blanking interval at or after the position of the three-bit quasi-synchronous pulse. The modification may include deleting or attenuating the _pulse from one of the luminance or chrominance channels of the video signal. The delete or attenuate pulse may have a positive or negative portion in the deletion or attenuation of the pulse. The delete or decay pulse may have the configuration of the three-bit quasi-synchronous pulse before the pulse is deleted or attenuated. The modification may include • too ^ , , j 匕 · before a pulse is deleted or attenuated, the pulse is deleted or attenuated in one or both of the three-bit quasi-synchronous pulse ^ pulse. The repair 106078.doc

-19- 1289409 The text may include • deleting or attenuating a plurality of pulses from the blanking interval. Moreover, the modifying can include deleting or attenuating pulses located in the plurality of blanking intervals. A feature of the erasing or attenuating pulses differs between different scan lines of the video signal prior to deletion or attenuation of the pulses. Moreover, the different feature is at least one of the position, amplitude, width or number of the pulses. Moreover, the pulse of the delete or attenuate may be a gray level pulse located in the trailing edge portion of one of the three-bit quasi-synchronous pulses before the pulse is deleted or attenuated. The delete or decay pulse has a duration of one-third to two times the three-bit quasi-synchronous pulse before the pulse is deleted or attenuated. In general, the digital television standard is the High Definition Television (HDTV) standard. The standard is one of a 720 line progressive scan or a 1 〇 8 line interlaced scan. Additionally, the information in the received video signal at least partially defines a predetermined command for content management of the video signal. In addition, recording of the video signal can be prevented by causing an error output from one of the devices receiving the video signal. The changed portion of the video signal can be in at least two channels of the video signal. These changes can be different between the two channels of the video signal. The changes may be in the selected scan line of the video signal and in the active video adjacent to the vertical blanking interval of the video signal. In addition, the input port in the device can be adapted to receive three channels of the video, including one luminance channel and two chrominance channels. Additionally, the output of the device can be adapted to output three channels of the modified video signal. In addition, the processor in the device may include a reference 106078.doc -20- 1289409 signal detector, which is connected to the input port and has an output of $; a memory that is connected to the reference The output bee of the signal predator is adapted to store a plurality of values associated with the changed portion of the video signal; and a mixer coupled to the input port of the processor to the memory, the hybrid mixer An output is connected to the output of the device. Additionally, there is at least one counter associated with the memory. [Embodiment] Content Management Modification FIG. 1A shows an HDTV signal source, analogous or digital, which provides a video signal input on line 2 coupled to a modification circuit 4. (The hdtv signal, although broadcast in digital form, can be easily converted to an aniolog domain.) The output signal of the modification circuit 4 on line 6 contains video program material with additions or insertions in accordance with the disclosure of the present invention. Content control and/or copy protection in the video program material. (In the case of a particular circuit, the "line" here refers to the signal conductor or signal conductor set, not the video scan line.) Figure 1B shows one of the content control/copy protection signals (universal) reader 3 received on line 6 (from Figure 1A) coupled to the (general) adaptation device 5. The reader 3 is, for example, a video recorder, a video player, or the like. The adaptive device 5 is, for example, a video recorder, a transmitter, an analog/digital converter, a universal serial bus, and the like. The reader 3 receives a modified input signal (e.g., an hD video signal) and couples the input signal and the read command to the adaptation device 5. The modified input signal includes three conventional channels Y, Pb, Pr, each channel potentially including (as such modifications) a pseudo sync pulse (ps), Agc pulse 106078.doc -21 - 1289409, described further below. Punch and trailing edge pulse (BPP). The adaptive device 5 can then modify the output signal at its output 埠7 by turning off or transmitting an additional signal at output (7 (or modifying its output signal via selected attenuation or addition). For example, if the command is to prevent recording or viewing, the output signal of the bee 7 at the adaptive device 5 is attenuated or attenuated. Alternatively, if the command is to transmit a content control or copy protection signal, the adaptation device 5 may not turn off and it transmits an extra signal or a signal modification at 埠7. 2 shows an example of an hdtv video system for modifying a video signal in accordance with the present disclosure. It is similar to FIG. 1A but shows all three hdtv video channels. Processor 10 processes or modifies at least one of the video channels, which corresponds to modification circuit 4 of Figure 1A. For example, the luminance video signal Y is coupled to a timing circuit 8, which generates a timing for the processor 10 to insert an add signal. The signal generators VI, V2, and V3 provide these additional signals. The output of processor 10 (on line 6) can then include an add signal after a three-bit quasi-synchronization pulse. That is, a signal (e.g., pulse or waveform) is added by the processor , followed by a (three-bit quasi-synchronous) reference signal consisting of a negative pulse followed by a positive pulse. For each channel such as Y, Pb, and Pr, there may be independent three-bit quasi-synchronous pulse modification, trailing edge region signal, leading edge region signal, three-bit pseudo-synchronous sync pulse, and/or three-bit quasi-synchronous and/or Or a signal or pulse after the three-digit pseudo-synchronization pulse. Modulation of pulse width, frequency, position, phase, and/or amplitude can be performed on any of the signals. For example, the selected scan line of the Y channel will have an added positive pulse following a negative and positive (eg, three-bit quasi-synchronous pulse) reference signal (eg, 106078.doc • 22- 1289409, eg, pulse or waveform) . The selected scan lines are in the vicinity of the VBI (vertical blanking interval), such as a scan line toward the bottom of the active field and/or a selected scan line in the VBI, and/or a selected scan line toward the top of the active field. . For example, each signal generator VBu and V3 outputs are respectively inserted into the signals of each channel. Thus, the signal generators output a static or dynamic waveform to be incorporated into the input video program signal. In another example of the gamma channel, a plurality of pulses (e.g., vertical sync pulses) are referenced for an initial time to transmit, for example, various content control instructions for a set of CGMS instructions. The content control commands can be further transmitted to an adaptive receiving device using two (or more) video channels with added pulses. Figure 3A shows a portion of a typical prior art HDTV video signal (illustrated in a conventional analog waveform) that includes a three-bit quasi-synchronous pulse having levels a1 and bl and a reference trailing edge level c1. A sync separator uses this pulse level a1 to generate a pulse that allows one of the measured levels b1 and/or c1. Detecting the zero value of the self-alignment a1 to bl produces a more accurate timing signal from the sync separator than the simple sensing level al. Since a clamp or a black level reference can be determined from the level cl, and an amplitude reference can be determined from the level b 1 (eg, the peak amplitude of the level b 1 ), the detected signal is learned. Known to adjust the black level and / or the video gain of an HDTV signal. Figure 3B shows one of the video signals for a gamma (brightness) channel (previous technique) and a three-bit quasi-synchronous pulse in which the amplitude (in mV) is plotted along the vertical axis. The HDTV standard 720p or 1080i can be applied to this example, but is not limited thereto. Figure 3C shows an example of one of the Pb and/or Pr channels (prior art) standard three-bit quasi-synchronous pulse video signals. HDTV standard 720p or l〇80i 106078.doc -23- 1289409 may also be applied to this example, but is not limited to at least a selected group of three-bit quasi-synchronous pulses or one or three bits of the signal and/or a copy protection signal. One portion of the quasi-synchronous pulse is inverted, the position of the time is moved, deleted, and/or modified in the -average energy level (eg, changes in pulse width and/or amplitude).

4A shows an example of adding a pulse eight in accordance with one of the present disclosures after a conventional three-bit quasi-synchronization pulse of the Y channel of the +HDTV. The pulse (on the ¥) is added before the active video scan line portion ("valid pixels"). In some cases, the pulse Α can encroach on the active video ("valid pixels,"). Figure 4A also shows the addition of pulse B, which is located in the month of the three-bit quasi-synchronous pulse |J. Pulse B can also be invaded (this The active video of the previous scan line. In the example of the gamma channel, pulse B can be set to zero amplitude and pulse a can be set to range from 1 〇〇/0 to about 100% (or more) of the peak white amplitude. Amplitude. Of course, other amplitude ranges (e.g., less than i 〇 0/.) can be used. An exemplary duration of signal pulse A is in the range of 1 〇〇ns to at least 15 "

In an example of generating a portion of content control, A and/or pulse 3 can be a waveform signal (e.g., it is more complex than a single pulse). For example, the waveform can be a (modulated) sinusoidal string or rectangular wave' or an arbitrary signal. Pulse/waveform A and/or pulse/waveform b may have a negative level (e.g., may be in the range of 〇 to -2 〇〇 millivolts) or may include a negative waveform. Figure 4B shows similar addition pulses a, b, in the channel and/or the channel. The positions of the pulses A' and/or B' may be different from the positions of the pulses a and b. Similarly, the waveforms of pulses A' and/or B' may be different from the waveforms of pulses a and b. In one example of the Pb and/or Pr channel, the amplitude of pulse B can be set to zero, and the amplitude of pulse 106078.doc -24 - 1289409 can be set to 5% of the peak white level (eg, + 15 Mv) to a range of about 50% (eg, +300 mV). Of course, other values can be used. An exemplary duration of pulse A' is from 100 ns to at least 1.5 psec. Pulse A, and/or B1 can be another waveform, such as an arbitrary signal. Pulse/waveform A, or B, may include extending to a negative voltage or extending below a blanking level. Pulse A1 or B1 can be placed near a horizontal (and/or vertical) blanking interval, and thus a portion of a horizontal video line can include a portion of an active video line. 5A and 5B further illustrate an example of the modification that includes reducing a portion of the leading edge and/or trailing edge sync pulse region by adding pulses D, C, D, and/or C. Decreasing a portion of the leading edge and/or trailing edge can be used to reduce or modify poor play performance effects, or the reduction can enhance a copy protection or a content control signal, and/or transmit it as a separate in a content control system The way information (comments). An example is to reduce a negative level to about 0 〇 / 〇 to _2 〇 % of the peak white level, although other negative values can be used. For example, D, ^, D, and/or C can be an arbitrary or selected waveform that includes any level within a level greater than the white level -30% to the mask level. Again, the waveform in the above may include one or more pulses or signals. The SA shows an example of inserting or adding a two-bit pseudo-synchronous signal to a video signal, each of which has a positive pulse and a negative pulse portion and also has one of the following Add trailing edge pulse 13. The true three-bit quasi-synchronous pulse is al, Μ, as in the prior art of Fig. 3 = no such false sync pulse can have any positive or negative pulse hold, ' π gate is the same, the amplitude of the pseudo sync signal Or the frequency can be different. This insertion is usually (but not necessarily) done in the VBI to avoid interfering with valid video. 106078.doc -25- 1289409 Figure 6B shows an example of adding a signal 25 (the trailing edge pulse) after the -negative/positive pulse (e.g., 'three-bit quasi-synchronous pulse). The width, position and/or amplitude of this add pulse 25 may vary as illustrated by the overlapping arrows. The addition pulse π can be a waveform and 25 can include a level between the side of the white level and the level above the level of the blanking. Similarly, as further indicated by the overlapping arrows, at least a portion of the trailing edge region (eg, level 26, and/or ^ can be raised and lowered. Figure 3B also shows (optional) three-bit pseudo-synchronous sync pulses Each of the three pseudo-synchronous pulses is represented as a read/foot _pulse pair and exhibits a subsequent optional add pulse 21. An example of the pseudo sync pulse duration is the duration of the standard three-bit quasi-synchronous pulse For example, the amplitude of the pseudo sync pulse is substantially close to the amplitude of a three-bit quasi-synchronous pulse, but the positive and / or negative pulse is fine and / or other amplitudes of 2 〇 p are also It is possible that Figure 6C shows a waveform similar to _, but as indicated by the arrow, the (optional) trailing edge pulse 21 following a three-bit pseudo-synchronous pulse can vary in width, position and/or amplitude. As shown in 22', 23, at least one region after the three-bit pseudo-synchronous pulse can be raised or lowered. 2r can be a waveform that can include a negative level. Figure 60 is not similar The figure is a waveform, but for these three-bit pseudo-synchronous pulses 20Ν, 2GP or the three bits The quasi-synchronous sync pulse is followed by a pulse 25 and σ, which has an increased or varying repetition rate or frequency. It should be noted that the number of three-bit quasi-synchronous sync pulses and/or the number of subsequent add pulses can be transmitted for one Information of the content control system. Figure 6F shows a waveform similar to that of Figure 6D, in which a certain number of three-bit pseudo-synchronous pulses 2〇n, 2〇P are added. For example, here the three-bit pseudo-synchronous pulse 20N , the number of 20P 106078.doc

-26- 1289409 Transfers information for a content control system.

It should be noted that FIG. 4A to FIG. 6E or FIG. 7 to FIG. 9F, FIG. 10B to FIG.

Or any of the signal modifications shown in Figure 13A or Figure 13B are used for copy protection or content control of certain hdtv analogy facilities or interfaces. Here, the addition of a signal after three quasi-false and + pulses can affect some of the AGC systems in the receiving device (the analog domain) to produce a copy protection effect. Similarly, any added signal, such as modulated, can produce a dynamic (time varying) copy protection effect. In another embodiment, the addition of a chirped waveform after one of the three-bit quasi-synchronous pulses also results in a clamp or display problem for a selected monitor or display. Knowing how to make this waveform, some displays or interfaces will be affected, while others will not be affected. For example, a series of (e.g., three-bit) pseudo sync pulses in the VBI may not have display defects in an HDTV standard such as l080i, but have display defects in 720p. And in other displays, false sync affects interlaced displays, but not as much as progressive scan devices. Standard image quality standards can also be used. Therefore, it is possible to control the operation of the scanning standard by using a selected dummy sync or a three-digit pseudo-step used by the interlaced or non-interlaced device. Of course, the selected AGC pulse can follow any selected (three-bit) pseudo sync pulse. The modification techniques of Figures 4A through 6E can also be used for content control purposes. For example, the instructions for content control may be the pulse Α, α·, α", A'", Β, Β, Β, Β, Β ", C, C', D, as shown in the above figure. The function of the characteristics or number of any combination of D, 25, 21, 21, and the instructions are located on the video channels (eg 'Y, Pb or Pr'). As another example, any amplitude or position or duration of the pulse of the above (or below) may be used for transmission within 106078.doc -27- 1289409

Control (content management) system information (such as instructions). Similarly, a pulse of each line/waveform or a particular pattern of pulses/waveforms for each set of lines can convey an instruction for content control. It should be noted that in certain circumstances, waveforms or pulses denoted as A, B, A', B', A", B", A"', B"', 25', 21 and/or 21 may have At least a portion of the -negative level (eg, the level can extend to at least one of the sync top level or a sync top level). Similarly, the waveform or pulses D, C, D, and/or C may have at least a portion of a negative level that extends at least downwardly to a sync top level. It should also be noted that positional separation, which may include zero values, may exist between D and B", C and A", D, and B,,, and/or C' and A", between the edges. Waveform D may be used. , B", ◦ 'A", d, B" ', C and/or A''' insertions include any combination of waveforms or pulses. Any twisting 0 (four) shape or pulse insertion/addition can occur in ―Inclusion interval or part of a valid video line. Figure 7 shows a waveform diagram of one of the three-bit pseudo-synchronous pulses. Here, the positive part of the three-bit quasi-synchronous pulse has at least a change in amplitude. A portion (eg, pulse 12,). One result is, for example, the provision of a false sync pulse, that is, the absolute value of the duration and/or its amplitude of a negative and negative forward. different. The amplitude of the positive portion (normally) of the positive portion or the three-bit pseudo-synchronous pulse may be, for example, about 20/ of the peak white level. To +1GG/. The inside of the supplement. Depending on the situation, the trailing edge pulse 2 pulses 22 and 23 can be added. ^ Wave_Show _ a more flexible technique that modifies (regularly) three-bit quasi-synchronous pulses and/or (adds) any part of the positive part of the three-bit pseudo-synchronous clock. Right μΙ_ J^田 'Knife & Here, as indicated by the heavy arrow, the three positions 106078.doc

-28- 1289409 At least a portion of the negative or positive portion of the sync/false sync pulse exhibits changes in amplitude, width, and/or position (or edge position). Figure 8 also shows that the inflection point "29 and 31 ' is used to anchor each of these points - the specific signal electric castle level. For example, if the pulse bl' and the 12' delay', the inflection point μ can be And - to the spoon to cover 'again $, but can use the level other than the mask level (for example, the inflection point), such as the peak white level of +1 〇% or _1 〇%. Can be expressed - gap voltage. This gap voltage can be set to the mask level or the mask level or below the mask level any voltage q this gap voltage is not limited to the peak white level + / _1 () 0 / . . .

Figure 9A shows, in a waveform diagram, an example of a modified three-bit quasi-synchronous pulse in the positive portion. Here, the overlapping arrows at the pulse bl" show a change in the amplitude or level of the positive portion. The modified level can be extended below the blanking level. Again, the modification of Figure 9A can be applied to one or three The position quasi-synchronization signal is shown in Figure 9B - Example & (4) "Modifies a three-bit quasi-synchronous pulse having a positional offset at the positive position of the three-bit quasi-synchronous pulse. The positive part of the synchronizing pulse The amplitude can also vary. The dashed line shows that the positive portion of the three-bit quasi-synchronous pulse can be extended, even extending to the effective portion of the subsequent effective scan line. Figure 9B shows one of the gap levels as part of the modification. The quasi-G1 can be expressed as an inflection point. The method of Fig. 9B can also be applied to a three-bit pseudo-synchronous synchronizing signal. Figure 9C shows an example in which one of the three-bit quasi-synchronous pulses is narrowed at b'". Again, the dotted line shows the positive pulse portion (duration extension). This widening extends to the active portion of the video scan line. The same can change the amplitude of this part. The method of Figure 9C can also be applied to a three-bit pseudo-synchronous sync pulse. It should be noted that Gl, G2 and/or G3 can be set to a 106078.doc -29- 1289409 non-obscured level or an obscured level. Figure 9D shows an example of a positive portion of a three-bit quasi-synchronous pulse that has been narrowed (duration reduced) or narrowed and offset at Μ"". Also, the amplitude of the positive portion may vary depending on the situation. It also shows that the positive pulse portion can be allowed to be extended (as appropriate to the effective portion of the video scan line. The level (amplitude) of the positive portion can also be changed. The method of Figure 9E can also be applied to a three-bit pseudo-synchronous pulse. Figure 9E shows a positive extension of one of the three-bit quasi-synchronous (or three-bit pseudo-synchronous) pulses at bl". The amplitude of the positive portion can also be varied and/or extended to the active portion. 9F shows at Μ"" that the positive portion of one of the three-bit quasi-synchronous (or three-digit quasi-synchronous) signals is offset and can also vary the amplitude of the positive portion and/or can be extended to be effective Part 1 - Figure 1 again shows a waveform of a conventional (standard) prior art three-bit quasi-synchronous pulse. Figure 10A shows a modification of the negative three-bit quasi-synchronous pulse of one of the waveforms of Figure 10, where Al, forward or offset, leaving a gap level G4. The amplitude of the negative pulse portion a1 may vary depending on the situation. Similarly, the method of Figure i〇b can be applied to a three-bit pseudo-synchronous synchronization pulse. Figure 10C shows a three-bit quasi-synchronous pulse, the negative part At the trailing edge a1, it narrows. A gap level G5 is left. The amplitude of the negative portion a" can vary depending on the situation. Similarly, the method of Figure l〇c can be applied to an additive three-bit pseudo-synchronous pulse.丨〇D shows a three-bit quasi-synchronous pulse whose negative knife becomes narrower. This negative portion can also be shifted in time. After narrowing and/or moving, a gap level g6 is left. The negative part al, The amplitude of „ can vary depending on the situation. The same method of Figure 1〇D can be applied to an (added) two-bit pseudo-synchronous pulse. The gap level g5 or G6 can be set to a non-masking/re-level or a masking Level. Can be offset by al, U,, al " and al, " location, 106078.doc

• 30 - 1289409 Change its pulse width and/or modulate its amplitude. Figure 11A shows a waveform diagram of a standard (prior art) three-bit quasi-synchronous video signal including portions of an active video scan line. Figure 11B shows the output signal of the associated synchronous separation circuit, which outputs a pulse indicating the negative going pulse of the three-bit quasi-synchronous pulse of Figure UA. (This prior art sync separator is part of the prior art AGC system shown in Figure 12.) Figure 11C shows a pulse that can be triggered from the edge of the signal of Figure 11β to produce the same portion of the positive portion of the three-bit quasi-synchronization pulse. Figure 11D shows a pulse from one of the signals of Figure 11B or Figure 11C, the signal being located in the trailing edge region of one of the standard three-bit video signals. Figure 丨ie shows the same pulse of the negative part of the three-bit quasi-synchronous video signal. The waveforms of Figures 11A-E of the prior art illustrate that sometimes the negative portion of the three-bit quasi-synchronous pulse is distorted or attenuated, and even if the reliability is higher than an AGC system operating as shown in Figures 11A-E, the three-bit quasi-synchronization is also relied upon. And sampling of at least a portion of the positive pulse of the trailing edge region. Thus, modifying the above modifications of at least a portion of the three-bit quasi-synchronization and/or a trailing edge region can advantageously affect the operation of any AGC system or video system utilizing a three-bit quasi-synchronous pulse video signal for copy protection. Figure 12 shows an illustration of a conventional AGC (Automatic Gain Control) system associated with the waveforms of Figures 11A through 11E and of the type used for an hd device such as a high quality television set, display a recorder, a video processor, a chipset, an interface device, or a similar device that uses the three-bit quasi-synchronous pulse and a voltage sample of a positive portion of a trailing edge region via output terminal 〇UT2, or via output terminal 〇UT1 An Agc system 106078.doc 31· 1289409 is used for the level of one of the negative portions of the three-bit quasi-synchronization and the power level of a trailing edge region. Figure 12 illustrates the reason why some of the hd video modifications described herein result in error measurements in a typical HDTV AGC circuit. Figure 12 prior art agC

The operation of the road is well known. At the input terminal 4〇, the sync separator 42 is turned on, and the two output signals of the splitter control the switches 46, 48, 50, 52. There is an upper feedback loop comprising capacitors 56, 58, differential amplifier 60, peak detection circuit 64, jump pin jp operational amplifier 66, integrator 68 and voltage control amplifier 7 〇 driven output terminal 72. The lower feedback loop also includes a differential amplifier 62, an operational amplifier 76, an integrator 78, and an output terminal 82 that is driven by a voltage controlled amplifier 80. The function of each loop is to control its voltage control amplifiers 70, 8 to control the level of the output video at terminals 72, 82. In another example, if a 50 control signal occurs during a blanking level such as a leading edge or a trailing edge, the negative portion of the three-bit quasi-synchronization is measured based on the signal coupled to the control line of switch 50. size. In another example, if a control signal of 5 发生 occurs during a positive portion of one of the two-level quasi-synchronous pulses, the magnitude of the three-bit quasi-synchronous pulse is measured (positive peak minus minus negative sync top value). Finally, if the positive peak of the three-bit quasi-synchronization is measured, the control signal of the switch 46 can be received from the synchronous decimation signal, and the signal is partially coupled with the positive pulse of the three-bit quasi-synchronization, and the switch ^ The control signal will be received as part of the 1 edge or the trailing edge. Some embodiments have been disclosed that can cause erroneous operation of this AGC circuit. For example. Tampering (for example, one or both of the positive or negative portions of the three-bit quasi-synchronous pulse in the portion will result in - error measurement (eg, in -A (10) or in a clamp circuit). Commonly used for reference. One of the trailing edge or leading edge regions of the level can cause error measurements (eg, in an agc system or in a box 106078.doc 1289409 circuit). The inventors have discovered that for analog television (non-HDTV) The selected line raises the portion of the horizontally synchronized trailing edge region to -"gray level" such as 40% of the peak white level; sufficient to generate a copy protection effect on the digital recorder. The invisibility occurs on a video display (such as a television). The inventors have also discovered that by modifying the combination of m scan lines with one of the smaller edge enhancements, the sweep of the trailing edge is greatly improved.

The line ' can be achieved - a similar unstable effect. For example, ^ is a cluster of scan lines (4 of 12) at about 100% (or close to a white level) of the peak white level, and the melon may be in the area of the trailing edge of the lift. The peak white level is about 35% (or close to - gray level) at 8 of the remaining scan lines (1) in the set. Figure 13A shows a conventional sync pulse, which has a common color burst signal with a gray level pulse after a sync pulse, and the graph shows a higher amplitude pulse placed after the sync pulse. The different levels of the combined gray pulses for raising a horizontal synchronization trailing edge region can also be used for three quasi-synchronous pulses. It is possible to apply this to one of the positive portions of the three-bit quasi-synchronous pulse (for example, to increase the X% (eg, 20%) of the peak white level of the positive portion of one of the m scan lines and one of the three-bit quasi-synchronous pulses') The peak value of the positive white portion of one of the other three-bit quasi-synchronous pulses of the scanning line is ¥% (for example, 6〇%). However, it may be possible to insert or add one or more (different) gray pulses, whether or not the modified three-bit quasi-synchronous pulse balance, which will result in modification of a three-bit quasi-synchronous television signal. Modifying the selected three (four) step pulse and/or selecting one of the trailing edge regions results in a copy protection effect. 106078.doc • 33· 1289409 Figure 14A shows a block diagram of a device for generating or modifying a three-bit quasi-synchronous pulse video signal such as an HDTV. The resulting modification of the masking interval and/or overscan portion of the video signal can be applied to video media such as tape/disc and/or dvd players and/or media players. In this case, the above modifications to the two-bit quasi-synchronous pulse and/or the trailing edge modification are useful. In Figure 14A, 'a program video input signal at the terminal 113, the video input " is consuming to a reference signal detector, such as a synchronization in a video receiving device (such as a video recorder) suitable for recording HDTV. Separator 1〇2. Then, the sync separator 102 outputs a vertical (V) or frame reference signal on line 1-6, and outputs a horizontal (H) scan line signal on line 107. Similarly, sync separator 1 〇 2 may include a pixel clock regeneration circuit that outputs a pixel clock signal on line 108. For example, in HDTV, the pixel clock frequency is 74.25 MHz (or some other frequency) and is typically (but not permanently) locked to the horizontal scan line frequency. The vertical or frame signal V on the line 106, the horizontal line signal (H) on the line 107, and the pixel clock reference signal on the line 1 〇 8 are connected to the address and the memory circuit 103. Because these three signals are coupled to the addressing and memory circuit 103, any pixel location in a video field or frame can be defined by a corresponding value of one of the circuits 1〇3. Then, the value from the memory circuit 1 〇 3 is inserted or added to the (selected) blanking interval or an overscan portion of the video signal. Waveform feature control circuit 105 for waveform control programs memory circuit 1〇3 via line 109. Circuit 105, for example, can place a rising edge pulse in a selected scan line of the video signal. Alternatively, circuit 1〇5 may regenerate portions of the video signals to include modified three-bit sync pulses 106078.doc • 34- 1289409 or modified trailing edge or leading edge level, or obscured by the video signal Or a newly generated signal in the overscan area (for example, a three-digit pseudo sync pulse and/or a subsequent signal). The output signals of the memory circuits 1〇3 on lines 111, 112 then contain the modified signals to be inserted or to be added to the mixer/inserter circuit 104. The signal 112 can couple a control signal to the 1〇4, 104 to insert or add a partial waveform of a valid portion (and/or a blanking portion) of a video signal. The mixer circuit 104 then combines or inserts the signal at the selected line (and/or pixel location) using the input signal from the terminal 113 coupled to the circuit 104. The output of the mixer circuit 104 is then the video modified signal at the output terminal 114. The output of mixer circuit 104 is then a video modification signal at output terminal 114. For example, see Figure mb and Figure 14C for the associated output signal waveform 'where' D and D* respectively show the addition pulse or waveform modification to the three-bit sync pulse of the selected scan line. In the example of FIG. 4B, this modification can be applied to, for example, scan lines 1118 to 1125, 7 to 20, 555 to 562, and 519 to 582. The duration of pulses A and B is 6 〇〇 ns; the duration of pulse ^ is 370 nS; the duration of pulse D is 1260 ns; the duration of pulse E 1 is 370 ns. Pulse D has an amplitude of 2% to 1% of the peak white level. In the example of Fig. 14C, this modification can be applied to, for example, scan lines 741 to 749 and 6 to 20. Pulses A, and B have a duration of 55 ns; pulses (:' duration is 566 1^; pulse 〇 has a duration of 13〇7118; pulse E' has a duration of 997 ns. Pulse D, There is an amplitude of 2% to 100% of the peak white level. Of course, other amplitudes, durations, and/or positions of the pulse or waveform can be used. Figure 15A shows a block diagram of a portion of another video signal modification device. 106078.doc -35- 1289409 B, like the associated circuit of Figure 15C, produces position or pulse width and/or amplitude modulation signals for video signal modification. These different modulated signals can be in the form of two levels. A sync pulse, a three-bit pseudo-synchronous pulse, or a subsequent %AGC pulse (adding a forward pulse) or any portion of the trailing (or leading edge) region after the rise/rise. In FIG. 15A, an input video signal "video input" is coupled to a conventional three-bit quasi-synchronous pulse sync separation circuit 202, 202 at the input terminal 201 to output a horizontal rate pulse (H) and a frame pulse ( Busy) The two output signals are connected to a first counting circuit 203, and then 203 counts the scan lines of each frame or field specific television standard (such as 525, 625, 75 〇 and/or 1125 lines). It should be noted that 72〇1) actually has 75 turns of scan lines, since "720" only refers to valid video scan lines, which do not count the VBI lines. Similarly, l〇80i actually has 1125 scan lines because "1" 〇8〇, refers only to the active video scan line, which does not count the VBI scan line. Then, the output signal of the counting circuit is connected to the input terminal of a first memory circuit 2〇4. The programming circuit 204 outputs a high logic level for each selected line (e.g., each selected video scan line to be modified). The output horizontal rate signal (H) from the sync separator 202 is coupled to a phase locked loop or pixel clock circuit 205 which produces a frequency which is preferably a multiple of the horizontal line frequency Η. This pixel clock circuit 2 〇 5 is preferably locked to the input video input signal. The output of the pixel clock circuit 2〇5 and the horizontal line signal (Η) are coupled to the second counting circuit 206, 206 to generate an address bit for the second memory circuit 207. One of the output signals of the second memory circuit 207 is a pulse that is synchronized to a particular pixel of the scan line. The output signal is coupled to a programmable digital timing circuit that includes circuits 208, 106078.doc - 36 - 1289409 209, 210, and 211. The SET input terminal of the set/reset flip flop 208 activates the beginning of one of the pulses defined by the second memory circuit 207. The AND gate 209 performs gate control on the pixel frequency pulses flowing to the third counting circuit 210. The duration of the timing is established based on the preset signal applied to the counting circuit 210. The fourth counting circuit 211 provides the preset values for the circuit 210. The fourth counting circuit 211 can provide a static or fixed amount or a varying number of sets (e.g., counting up and/or counting down to return an arbitrary number). Then, the output signal of the flip-flop circuit 208 at the terminal output terminal 14 is a pulse whose duration is defined or changed in duration. By combining the signal at the output terminal 14 with the signal at the output terminal of the second memory circuit 207 via logic 212 (see FIG. 15B), the front edge and/or the back edge can be obtained via the output terminal output 22. A pulse that changes. The output signal of logic 212 is coupled to a timing generator 213 via a signal on terminal output 22, and a position modulated pulse is provided at output terminal output 23 or output 24 (as shown). Figure 15C shows a circuit associated with the circuit of Figure 15A that receives a pulse width or position modulated signal and uses AND gate 214 or 215 to place the modulated signal in the selected scan line. The switch 216, which is controlled by the output signal from the AND gate 215, switches the output signal from the AND gate 214, and then determines a selected scan to be coupled to the multiplexer (adder) circuit 221 via the level control (variable impedance) 222. Pulse width modulation or position modulation signal for selected pixels of the line. (Circuit 221 is an adder or multiplexer or a combination of both.) Adder circuit 221 also receives an insertion control signal from one of AND gates 225 that controls the insertion of selected pixels for the selected line. As an option, further (amplitude) modulation of the modulated pulse width or position signal can be obtained by the amplitude modulation circuit 2 17 via 106078.doc - 37 - 1289409. In the modulation circuit 217, a logic level signal is coupled via a buffer (amplifier) 218. Buffer 218 can have an open collector or open drain output such that 218 determines the output signal amplitude via a load resistor R1 and voltage source Vmod. The buffer amplifier a12 219 is coupled to receive the amplitude modulation signal, and then, as the case may be, the output signal of the amplifier 2 i 9 is coupled to the multiplexer/adder circuit 221 to generate an amplitude modulation inserted into the video signal. Signal. Amplifier A 14 224 then generates an output signal having a program video that has an insertion or addition modification, as appropriate. The input signal from terminal output 2 controls the above process via AND gate 225. The elements Vmod, RL, 219 and 218 and 219 are examples of the amplitude modulation circuit 217. The amplitude of the signal or pulse from switch 216 is modulated/adjusted by varying source voltage vm〇d. It should be noted that the signal source vm〇d can output any type of signal, including a DC signal. Figure 16 shows a system (simplified description) for content control or copy protection in which a video source 301 such as a tape player or a DVD player or other source of distributed or broadcast video programming can provide video signals. The payload also contains video content of the control data that is applied to the resulting output digital bit stream or analog signal at the output of the modifier 302 terminal. For a DVD player or computer type hard disk media source 301, the content control or copy protection is applied via modifier 302 to the video control program control data bit or bit stream from source 301. Figure 17 shows another such system for content control or copy protection. Further, 106078.doc -38- 1289409 控制 σ, - The control state reader 403 interprets the video modified from the HDTV program signal source 4〇ι, the textor 402, and generates a buckle to the adaptation device (10)4. The reader 403 deciphers one pulse present on the selected scan line of the input video into a specific command, or the reader 4 can move/modulate, amplitude level, amplitude or level shift/tune any position. The change or pulse width or pulse width modulation is interpreted as a way to convey information about the content control (曰7). For example, if some positive pulses of a three-bit quasi-synchronous pulse are narrowed, the sequence between the normal positive pulse and the narrowed positive pulse of the three-bit quasi-synchronous pulse can define a control command. Alternatively, if the pulse width of the AGC pulse (added and non-standard forward pulse) is modulated, the width of the selected AGC pulse can also define the - command. In addition, the frequency of the three-bit pseudo-synchronous pulse can also define an instruction. In Figure 17, the adaptive receiving device 4〇4 can be a video recorder, display or interface device (e.g., a WiFi transmitter or a video to USB/DVI converter). These adaptive devices are designed to respond to a particular modification signal. For example, a signal to be allocated but not displayed may have a modification signal at source 401 such that it affects the display 404, but does not affect other receiving devices. For example, a wiFi transmitter can set its clamp pulse at the beginning of the trailing edge of a three-bit quasi-synchronous pulse, and the display device can be sensitive to the entire trailing edge. By modifying the video signal at the modifier 4〇2 so that it has a rising trailing edge in at least half of the active field and the trailing edge, there is no problem with the transmission of the WiFi transmitter, but there is a serious problem on the display device. The darkening effect produces the desired copy protection effect. 106078.doc -39- 1289409 Similarly, the receiving adaptation device 404 can operate in a two-way manner. For example, adaptation device 404 can send an identifier signal back to video source 401, such as a (dvd) media player. By identifying the adaptive device that is allowed to operate (or by identifying the restrictions set for the particular adaptive device), the media itself or media player 401 can utilize a more independent manner (such as not running the transmission but allowing display 'or allowing recording) For a fixed duration), the applicable signal modification is applied to affect the receiving device 104. Modification of the invalidation/attenuation/modification effect The high-quality TV signal (or other video signal containing the three-bit quasi-synchronization pulse) changed by adding or inserting the content control mark/signal or copy protection signal in the above manner (assuming a different use) The entity may be subsequently further modified to alter the results of the control signals or flags and/or to modify at least one effect of the copy protection signals. In the following description, "marker" refers to a set of selected lines, any AGC pulse, including an HDTV CGMS signal, a trailing edge signal, a leading edge signal, a sync pulse modification (which may include some or all of the simultaneous deletion). Any (type) three-digit pseudo-synchronous signal, a signal and/or data signal inserted or added to - or selected pixels of a plurality of television lines. These tags carry content control instructions. In one embodiment, a reference signal such as a three-bit quasi-synchronous pulse can be modified to change at least one effect or instruction of the content control. It should be noted that in the United States, the Digital Millennium Copyright Act (DMCA) may treat any act or device that invalidates or attenuates an effect as an intention to make or be able to make an unauthorized copy. Therefore, the following are technical disclosures and do not induce, encourage or abet any illegal act. 106078.doc -40- 1289409, the case of the cow and the ## for the purpose of content control, after inserting the mark or raising the edge signal, then the receiving device can use the previous three-bit quasi-synchronization pulse to locate the trailing edge signals. Can not be positively detected by modifying, for example, one of the selected three (four) step pulses, such as smashing, positional offset, attenuation, narrowing, and/or level shifting, or more than three levels of quasi-synchronous pulses. Measure at least the ones that are inserted into the trailing edge signal. We can also add a signal to one of the selected three-bit sync pulses to detect a trailing edge signal or a synchronous split. Similarly, it will then cause the error detection of the correct step pulse to include a three-bit quasi-synchronous pulse region or a duration, requiring at least one of the three bits to be identical. In this example, for the video of the call, the marker signal or copy At least a portion of the guard signal can be subject to positional offset, level shifting, narrowing, attenuation, and/or deletion. At least a portion of a tag may also have an add or add signal (e.g., interfering signal) to cause error detection (e.g., error detection by the receiving device). In another embodiment, at least one of the markers is repositioned (eg, (ie) repositionable with respect to a synchronization signal such as a three-bit quasi-synchronous signal or a vertical sync pulse or chirp) . For example, if there are ten possible scan line positions of the mark, and five of them are used and clustered near a particular scan line, then one can change the position of at least one mark to another position. For further explanation, it is assumed that the marks are located on the scan lines 10, 11, 12, 13, and 14, followed by a pulse, but the marks may be located on the scan lines 10 to 19. The markers for such repositioning are shown in the following examples: scan lines 10, 11, 13, 14, and 19. Of course, other examples of repositioning are possible. In another embodiment, at least a portion of a vertical sync pulse is simply modified such that the adaptive device erroneously identifies the correct scan line meter 106078.doc - 41 · 1289409 to cause an error in the scan line configuration of the markers . For example, if we want to delete the first wide vertical sync pulse and add a wide pulse after the last standard (normal) vertical sync pulse, the scan count will be reduced once. This scan line count error can result in erroneous detection of the tag and/or HDTV CGMS signal. Another example is to modify the field identification in an interlaced system. This field identification change can be accomplished by modifying a portion of one of the vertical sync pulses and/or horizontal sync signals in one or more of the VBIs. Since a content control system relies on the correct synchronization signal for locating the data signal, it is assumed that one of the data signals associated with a particular field (eg, an odd field or an even field) is in another field (eg, an even field or an odd number) In the field). Another way is to move the data signal only to another field because it is the relative position between the data and the field or sync signal to determine the correct or erroneous reading in the content control system. Figure 18 shows a processor device 5 (1) for receiving an input video signal (or video bitstream) that already has one of the content controls or a copy protection signal added as described above. The processor 501 then modifies the input video signal (or bit stream) to change (eg, to accommodate the device) content control instructions or modify the effect of a copy protection signal (ie, reduce or eliminate copy protection to produce modified Output video). An example of processor 501 is used for the video signal having one of the three-bit quasi-synchronous pulses and some associated add or delete pulses. In the event that the content control signal is based on a deleted three-bit quasi-synchronization portion, the processor 501 can regenerate the deleted three-bit quasi-synchronization portion. In another instance where the input video signal (one bit stream) contains pixel bits added for content control, processor 50 1 may delete or modify the pixel bits. 106078.doc -42- 1289409 Figure 19 shows an input video signal with a three-bit quasi-synchronous pulse more specifically provided. The input video signal can be in the form of at least one component of the video channel and at least one of the channels has the three-bit quasi-synchronous pulse. Similarly, the input video signal has the above modifications in its masking interval or in portions of the active video signal modified as described above for transmitting content management or transmitting a copy protection signal. The input video signal is coupled to the processor 5〇2, which processes the modified three-level sync pulse to output a modified output video signal, the modified output video signal changes the content management command, or changes Or reduce the effect of copy protection signals. For example, an input video signal including a three-bit quasi-synchronous pulse has an added three-bit pseudo-synchronous pulse and an AGC pulse. Processor 502 can attenuate or delete any portion of the three-bit pseudo-synchronization pulse and/or any portion of an AGC pulse. In another example, if the AGC and/or three-bit pseudo-synchronization pulses are modulated, the processor 5〇2 can reduce or change the modulation to change a copy protection effect or an output of a content management command. One way to change the modulation is to use a static signal. The processor 2 uses a static AGC pulse or a static three-bit pseudo-synchronous pulse at the processor 502 to replace the respective levels of the AGC and/or the three-bit pseudo-synchronous pulse. . An example of a static pulse is a fixed position, width, frequency, and/or amplitude signal. For example, a modulated signal of amplitude, frequency, or position is changed over time to transmit a content control information signal or to generate a dynamic copy/display protection signal. By at least attenuating these dynamic effects (by converting this dynamic signal to a more static signal), the result is modified or reduced by the instruction or copy protection effect. Figure 20 shows a processor 503' which changes the 106078.doc -43 - 1289409 effect of the add tag in the input video. The processor can modify a portion of the input video signal, the portion

Not the tag itself. For example, removing at least a portion of a three-bit quasi-synchronous pulse prior to a tag may cause the tag to be undetected because one of the received tags can accommodate a standard or detectable three-bit quasi-synchronous signal. To locate a subsequent mark. If there is no three-level sync pulse for locating the mark, the adaptive receiving device (not shown) does not detect the mark. 20 also shows that processor 503 can modify at least a portion of the tag itself to change the flag, thereby removing, attenuating, adding, for example, a signal and/or offset amplitude of the interfering signal before or during the tag or Location, or similar steps. Similarly, removing or relocating at least a portion of a vertical sync signal can result in an erroneous reading of a flag (e.g., in an adaptive device or content control system). Figure 21 shows a processor 504 for modifying the effect of an input hdtv content protection/video copy protection signal (CPS). Similarly, modifying the effect can include changing or changing a portion of the video signal other than the content protection or copy protection signal. For example, if a data signal (for example, 〇 (5 River 8's Lishao form) is used to perform content protection on an input video having a three-bit quasi-synchronous pulse', then the corresponding three-bit quasi-synchronous pulse of the data signal is simply modified. At least - part of the error may result in the extraction of the data signal. Similarly, modification of the vertical synchronization signal, such as delay or advancement of at least a portion of the vertical synchronization signal, may, for example, be correct in the receiving device. Scanning error. Adding or inserting -·, false, vertical pulse or signal detection signal or signal signal scan line count error at different positions. Adding this-false vertical pulse or signal, for example, for better playback Sex 106078.doc -44 - 1289409 can, preferably remove at least a portion of the initial vertical sync signal. Further, the modify-effect means modifying the content control or copying a portion of the protection signal. For example, modifying the data signal At least - part of the detection and detection of the receiving device is incorrect.

In another example of the apparatus of FIG. 21, content may be implemented for the input three-bit quasi-synchronous pulse video signal via a combination of the addition of a marker or data or a three-bit pseudo-synchronization pulse or an ag pulse in the at least one video channel. Manage or copy protection. Then, the device (processor) 5G4 can remove, attenuate, or level shift, or narrow or widen, or positionally shift the above added signals of any video channel to modify one of the content management system or the copy protection signal. Effect Note that the processors of Figures 18, 19, 2, and 21 and the other processors disclosed herein may be in analog circuits, digital circuits, software, and optical devices (e.g., by a microprocessor or microcontroller or Implemented in any combination of similar devices. Figure 22 shows an example of a block diagram of a device (processor) for modifying the above content control or copy protection signal. The input video at terminal 714 is coupled to a sync separator 701. The sync separator 7〇1 outputs a vertical or frame rate signal V and a horizontal line rate signal H. The signal v is coupled to a timing circuit 702, which outputs, for example, one of the logic high signals for the selected scan line. The signal Η is coupled to a timing circuit 703, which outputs, for example, a logic high signal for a selected portion of the portion of the scan line. The AND gate 7〇7 logic combines the outputs of the timing circuits 702 and 703, and the 7〇7 line 711 outputs a logic high signal for the selected portion or pixel of the selected scan line. The output of gate 7〇7 can then be 106078.doc -45- 1289409 for example, a signal that coincides with at least a portion of one or more three-bit pseudo-synchronous pulses and/or AGC pulses. The horizontal sync pulse signal Η is also coupled to the timing circuit 704, 704 to provide an output which can be a logic high for a selected blanking interval such as ΗΒΙ. The output of the timing circuit 704 on line 712 and the output of the gate 7〇7 are combined via the OR gate 708 on line 713. The output of 〇R gate 708 on line 713 then controls a switch 7〇6 when actuated, and then switch 7〇6 replaces the selected video portion at terminal 714 with a reference signal Vsig. In one example, the reference signal Vsig can be a fixed voltage and the switch

706 replaces any of the horizontal three-bit quasi-synchronous pulse leading and/or trailing edges with the fixed voltage (e.g., raising the leading edge and/or trailing edge pulses). Similarly, switch 706 can replace at least one video signal region in which a dummy sync pulse and/or AGC pulse is added with the fixed voltage. Then, via the amplifier 71

The known output signal OUT removes or modifies a sufficient portion of the content control and/or copy protection signal of the three-bit quasi-synchronous pulse to change the content control command or to reduce one of the effects of a copy protection signal. It should be noted that in order to remove or modify only the trailing edge signal, the output terminals of the timing circuit 7〇4 can be directly connected to the switch 706, and the components 7〇7, 7〇8, 703 and 702 are no longer needed. Figure 23 shows another apparatus for modifying an input video Λ唬 (e.g., two-bit quasi-synchronous pulse video) by replacing the video input signal with a sync pulse or a three-bit gamma pulse. It can also replace some parts of the input video vB and / or ΗΒΙ. For example, if the video input signal contains a non-standard selected three-bit quasi-synchronous such as an asymmetric negative/positive two-bit quasi-synchronous pulse, the shock will be replaced by a substantially normal pulse and changed. Three-bit quasi-synchronous pulse. Similarly, if the input video signal 106078.doc - 46 - 1289409 has an add signal after the selected three-bit quasi-synchronization pulse, the device of FIG. 23 replaces the add signal with a signal such as an occlusion level. At least 4 points). In addition, if the input video signal has a three-bit pseudo-synchronization pulse followed by an Agc pulse, the device of Figure 23 will replace at least a portion of the added signals with a signal such as a masking correction. If the rounded video signal deletes the selected three-bit quasi-synchronous pulse (or a three-bit quasi-synchronous pulse portion) for content control purposes, the device of FIG. 23 replaces one or more missing two-bit quasi-synchronous pulses (or is lost) The three-bit quasi-synchronization portion; for example, it causes a change in the content association control instruction. In Figure 23, the input video signal at terminal 809 is coupled to synchronous separation circuit 801. The output of sync separator 801 is then coupled via line 812 to a gate generator circuit 802' 802 that is generally locked to the output signal of sync separator 8〇1. For example, the output of sync generator 802 on line 803 then has an accurate (standard) sync signal such as a standard three-bit sync pulse for a 720p or 1080i HDTV. The other outputs on the sync generator 8 02 on line 804 provide pulses representing HBI and/or VBI. The synchronous splitter 8〇2 is connected to the amplifier 805, 805 on one of the outputs on the line 8〇3, and the correct sync pulse level for a video signal is transmitted on line 810. Switch 8〇6 then receives the HBI/VBI pulse from generator 802 at its control node, switching at least a portion of the reproduced (generally) standard sync output from amplifier 8〇5 to the input video. The output from switch 806 is then modified by amplifier 807 at output terminal 8〇8 to modify the input and modified video from a non-standard sync pulse to a current one of the video signals with or without a non-standard sync pulse. If the input video has a non-standard signal level in the HBI (for example, a 106078.doc -47 - 1289409 month 'J edge or trailing edge pulse or a non-standard triple two-bit quasi-synchronous pulse), then terminal 808 Lu

Set. For example, if there is a one-to-one video content control or copy protection signal, if another device has a three-bit quasi-synchronization pulse, the device attenuates the added signal. Thus, for example, the content control signal may be erroneously read, or the efficiency of a copy protection signal may be reduced, e.g., easier to copy or distribute; or the effect of a copy protection signal may be reduced, e.g., more easily allocated or viewed. The video signal input at the terminal 1004 is coupled to a sync separator 1001, and the horizontal rate pulse H from the sync separator 1001 is coupled to a timing circuit 1002. The output of timing circuit 1002 includes a signal that is compatible with at least a portion of the video signal. This portion of the video signal can be part of a portion of the HBI and/or part of a valid video scan line. Switch 1〇〇3 receives the output signal from circuit 1002 and, therefore, preferably controls the video input (via resistor 1()〇5) to be shunted to an AC ground via a low impedance. Switch 1003 can be an analog switch or a transistor or solid state device or an active device, similar to the other switches disclosed herein. It should be noted that the switch 1003 can be coupled to the output terminal 1〇1〇 using a conventional filter capacitor. Thus, Figure 24 illustrates a method for mitigating at least a selected portion of the video signal to alter one of the effects of the content control signal or to modify or modify one of the effects of, for example, a three-bit quasi-synchronous pulse video copy protection signal. In the case of a marker signal or copy protection or display protection signal, some displays usually do not display a normal image. In the example, the attenuation method such as Figure 24 can reduce the clamp error for some displays. Without an attenuation method such as in Figure 24, unauthorized display or allocation will not be allowed. Figure 25 shows a slightly similar device that uses a signal to replace a portion of the input video signal to effect a change or disable or attenuate one of the content control signal or a copy protection signal. For example, one of the two-bit quasi-synchronous pulse video input signals at the terminal 1〇〇4 is coupled to a sync separator 1001 and a DC recovery circuit 1009. The output signal of the sync separator 1001 is coupled to the timing circuit 1002. The timing circuit 101 outputs a pulse that is compatible with at least a portion of the inner valley control signal or the copy protection signal. The d C recovery circuit 1009 allows the blanking level to be substantially constant with a dynamic average image level. The output signal of the DC recovery circuit 1〇〇9 is coupled to one of the input terminals of the switch 1〇〇3, and a reference voltage source VRef is coupled to the other input terminal of the switch 1003. Then, the output signal of the switch 1003 has at least a selected portion of the input three-bit quasi-synchronous pulse video signal replaced by the reference voltage. Then, the output of the amplifier 1007 at the terminal 1〇1〇 is a three-bit quasi-synchronized video pulse signal having a modified content control signal or a copy protection signal. For example, by replacing this modification, one effect of copying the protection signal is attenuated, or one of the content control signals is changed. (Vref can be an AC or DC signal or waveform.) The devices of Figures 24 and 25 can also be used to narrow at least a portion of the added signal in the HBI. For example, if the sequential circuit 1002 produces a pulse that is only partially compatible with one of the durations of the trailing edge pulse, the effect on the output signal at the output terminal 1010 will be a narrower trailing edge pulse. In another example 106078.doc -49-1289409, if the timing circuit 1002 provides a pulse or pulses at one or more portions of the trailing edge pulse, the trailing edge pulse can be split into two or more variations. Narrow pulse. This split will change at least one effect of the content control or copy protection signal. Figure 26A shows a device for changing the effect of a content control signal or copying a protection signal using gain control and/or narrowing. The input video at terminal 11〇5 is lightly coupled to a sync separator 1001. An output terminal of the sync separator 1001 provides a horizontal rate pulse Η coupled to a timing circuit 112A. The output signal of circuit 112 is a horizontal rate pulse (e.g., the pulse can begin before a sync pulse), and the horizontal rate pulse from circuit 1101 is coupled to a count circuit 1102. The counting circuit 11〇2 also receives a reset frame (frame) or a vertical pulse (V) from the sync separator 1001. The output terminal of the counter 11〇2 is coupled to the address input terminal of a memory circuit 1103. In one embodiment, the amplitude of the selected portion of the input video signal is effectively increased relative to other portions of the video signal to cause detection of the normal sync signal, resulting in a misalignment of the three-bit pseudo-synchronous pulse. Or induction. Therefore, the "selected line i" and "Vsyn" from the memory 11〇3, the output signals are respectively coupled to the input terminals of the AND gate 1104 and the sequential circuit 11〇5. The sequential circuit 1105 is also received from the synchronous separator 1001. A horizontal rate (H) pulse to produce a pulse compatible with at least some (or all) of the three-bit quasi-synchronous pulses. The AND gate 1104 also receives "selected line" output from the memory circuit 11〇3 The output of the sequential circuit 1105 will also produce a pulse that is compatible with one or more vertical sync pulses coupled to the 。^ηι〇4. Then, ANE^11〇4 outputs a pulse to the gain control circuit 1106. , which is logic south in the standard sync pulse memory 106078.doc -50 - 1289409 and is generally logic low in the presence of a false sync pulse. As the gain control circuit 106 controls at least a portion of the three-bit quasi-synchronous pulse video signal, A set of standard sync pulses is typically added at the output terminal output of gain control circuit 1106 to exceed a set of spurious sync pulses by substantially increasing the amplitude of at least some selected standard (three-bit) sync pulses. For example, with respect to a pseudo-synchronous or two-bit pseudo-synchronous signal, at least one of the two-bit pseudo-synchronous (or pseudo-synchronous) pulses may be unreliably sensed, thereby causing a change in content control instructions or utility or copy control/copy protection. One of the changes in efficiency/effect.

The apparatus of Fig. 26A also narrows or deletes one of the (additional) three-bit pseudo-synchronous pulses and/or AGC pulses. The timing circuit 丨丨〇7 receives the horizontal rate pulse from the sync separator 1001 and generates a signal that is compatible with at least a portion of the three-bit pseudo-synchronous sync and/or AGC pulse. The memory circuit generates a signal ''selected line 2'' indicating at least one scan line to which the three-bit pseudo-synchronous pulse is located. The AND gate 11〇8 logical combination is output signal from the sequential circuit 11〇7 and comes from a "select line 2" signal of the memory (10) to generate a signal that is interfaced to the control switch 1109 and is compatible with at least a portion of the three-level (synchronous or) false sync value and/or the AGC pulse. thereby switching U09 A signal from voltage source 1110 is inserted into the selected portion of the three-bit pseudo-synchronous (or synchronous) pulse and/or AGC pulse. One example of the resulting signal at the output terminal is at least one three-bit quasi-synchronous (or pseudo-synchronous And / or - AGC pulse - the duration of the narrowing. Another example of the resulting signal on the output terminal (10) is to delete a sufficient number of 7 2 $ 2 $ 2 two quasi-synchronous (or false synchronization) and / or AGC pulse or part thereof, to change the control of a meat within a ^ ^ 4 control signal or reduce the effect of one copy protection signal. 106078.doc -51. 1289409 Figure 26B (Fig. 26A extension) exhibition will not Used for failure (for example, reducing an effect) or A signal for the purpose of the modification is added to two instances of at least a portion of the content control or copy protection signal. One of the sync separators 1 is connected to the '^ timing circuit 1118 at the terminal 1150, and then The output surface is connected to one of the input terminals of the AND gate 1119. The timing circuit 1118, for example, generates a signal indicating at least one trailing edge (or leading edge) portion and/or an active portion, or a three-bit pseudo-synchronous pulse. In one position, the memory circuit 11〇3 outputs a signal indicated as “selected line 3” at its output terminal 1124, and the signal surface is connected to the AND gate 1119. The output signal of the gate 1119 is a signal indicating that At least a pulse (eg, a leading edge and/or trailing edge signal) and/or an added signal in the VBI or near a VBI (eg, a three-bit pseudo-synchronization and/or an AGC pulse) is added to the HBI. The scaling circuit i117 ( The logic level output signal of the gate 1119 is translated into a video level signal by a factor κ scaling, and the video level signal is coupled to a summing circuit 1116. The other inputs of the summing circuit 1Π6 are from the gain control 1106. The input video at sub-port 1152. Thus, the output of summing circuit 1116 at terminal 1134 is a video signal whereby a quasi-offset signal has been added to a portion of the input video signal. Thus the level offset Changing the level of any portion of the added signal. This level offset (also) may result in a level shift of at least a portion of the selected three-bit quasi-synchronous pulse and/or vertical sync pulse, which may result in, for example, a pair Error detection of a trailing edge signal or an HDTV CGMS signal. Another output signal of the device of Figure 26B at output terminal 1132, (via switch 1136) will be from voltage source 1112 (or voltage source 1113) at summing circuit 1115. a reference signal is added to the summed video signal to control or copy at least a portion of the protection signal or a selected portion of the three-bit quasi-synchronous pulse or vertical sync pulse of the content 106078.doc -52 - 1289409 Quasi-offset or distorted. This addition results in an effect of changing one of the content control signals or attenuating the copy protection signal. Typically, the voltage from voltage source 1113 is set to zero, but when source 1112 is not switched in, source 1113 can provide a signal voltage to add a different waveform to the input video signal. The voltage from source 1113 can be, for example, a pedestal shaped pulse voltage to one of the selected effective field lines, for example, the base voltage can be one of the normally dark states due to content control and/or copy/display protection signals. The signal "lights up". Figure 27A illustrates a waveform of a data signal associated with a three-bit quasi-synchronous pulse. For example, the data signal can be an HDTV CGMS signal. A three-bit quasi-synchronization pulse 1210 appears before the data signal. For example, a start pulse or a bit of a packet or a reference signal 12 of the loop, and a data bit 1201 constitute a data signal. Figure 27B illustrates a failure waveform that is expected to result in an erroneous reading of data bit 1201 of Figure 27A by modifying reference signal 1200. In Figure 27B, reference signal UOO is attenuated or deleted. It is only necessary to implement this modification on a sufficient portion of the reference signal 1200 to achieve the desired effect. Similarly, as shown by the overlapping arrows a, b, c, d of Figure 27C, modifications are made to at least a portion of the reference signal 1202, such as modulation, attenuation, removal, or narrowing or edge offset or serration or movement or Similar steps can also result in erroneous readings of the data bits. Figure 27C also shows another erroneous reading of data bit 120 by causing any portion of data bit 1205 to be changed by narrowing, compressing, level changing, positional shifting, and/or expanding as indicated by arrow E. One way. Again, this type of change will likely result in a change in the instructions transmitted by the data bits 106078.doc -53 - 1289409. By way of example, in other embodiments, where the in-line control (for HDTV or non-HDTV) can incorporate the use of multi-directional (e.g., bidirectional) (plural) communications or (plural) links. A link can tell the type of device used, a content control system, and the content control system can output an appropriate content control or device management signal. The content control system can also direct the device to send a signal modification to another device to another layer of content control or content protection. Thus, embodiments may include any combination of signal addition or insertion or deletion of selected pixels of a 111) signal. Another embodiment is a content control system in a similar computer network environment in which one or more sources/devices are sensed and an appropriate signal or command is sent via the network to allow for flexible content control of the various devices. Or content protection. It is to be noted that certain content control or copying/displaying of the protection signal is disclosed in U.S. Patent No. 5,5,83,93, the entire disclosure of which is incorporated herein by reference. For analog TVs, additional signal enhancements can be used. According to this disclosure, these types of signals can be enhanced to form part of the entire HDTV signal. These signal enhancements can result in a more efficient H D T V copy or display protection process, or simply become part of a copy or display protection signal. For example, if some of the embodiments herein result in an AGC reaction, the enhancements may add or modify such effects or effects. Such enhancements may result in a less viewable image if some embodiments cause a display (e.g., via a display device or a video interface unit to clamp incorrectly) to produce a generally unviewable image. Therefore, one of the US Patent No. 5,583,936 signal modification enhancements can insert a modulated signal into the bottom or top HDTV line of the 106078.doc -54· 1289409 television station, resulting in loss of entertainment value. Increase (such as an HDTV display is more broken or more unstable, or more noise/interference in a hd device). The enhancement method of U.S. Patent No. 5,583,936 may also be adapted to the HDTV to cover a portion of the selected line, add a signal to a portion of the selected line or portions thereof, delete or delete one or a portion of the HBI or VBI. The selected pixels of the HDTV signal are subjected to any combination of steps such as narrowing or attenuating. Similarly, the method of invalidating or attenuating or modifying effects disclosed in U.S. Patent No. 5,583,936 can also be applied to the case of an HDTV (e.g., having a content control signal or a copy/display protection signal). The disclosure is illustrative and not restrictive; it is obvious to those skilled in the art that the present invention is further modified, and such further modifications are within the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A is a block diagram of a system of the present invention for modifying a video. Figure 1B is a block diagram showing a content control e for receiving a modified signal (reading the signal), and then transmitting an instruction signal to an adaptive device. 2 is a block diagram of the system of FIG. 1A showing no other video channels. Figure 3A shows a prior art waveform of one of the HDTV video signals. Figure 3B shows a prior art waveform of an HDTV video channel (e.g., gamma (brightness) channel). Figure 3C shows a prior art waveform of another HDTV video channel (e.g., a Pr4pb (chrominance) channel). Figure 4A shows a modification of a video pass 106078.doc - 55 · 1289409 that is not available for content control and/or copy protection. Figure 4B shows a modification to another video channel that can be used for content control and/or copy protection. Figures 5A and 5B show another modification in which at least a portion of the leading edge and/or trailing edge is reduced.

Figure 6A shows the addition or insertion of a three-bit pseudo-synchronization pulse, which may have an arbitrary positive or negative (pulse) duration/amplitude. Figure 6B shows one of the signals inserted or added after the three-bit pseudo-synchronous pulse of one or more selected scan lines; the portion or portions of the region after the three-bit quasi-synchronous pulse can be raised or lowered as appropriate; Depending on the situation, one of the signals can be added or inserted after the three-bit quasi-synchronous pulse. 6C shows that the amplitude and/or position and/or the pulse width of one of the signals inserted or added after one or two quasi-synchronous signals can be subjected to modulation; the three-bit quasi-synchronous pulse includes a three-bit pseudo-synchronous pulse and/or A three-bit quasi-synchronous pulse; a portion or portions of one of the regions following the three-bit quasi-synchronous pulse may be raised or lowered as appropriate.

Figure 6D shows that after one or more quasi-false, 丨·/ 狐 芏 芏 视 : : : : : 心 心 心 心 心 心 心 心 心 心 心 心 心 心 心 心 : : 心 心 心 可视 可视 可视 可视 可视 可视 可视 可视 可视 可视 可视 可视Add or insert a signal. Figure 6E shows one of the three-bit quasi-synchronous sync pulses inserted; after a pulse, a _ signal can be added or inserted as appropriate. Figure 7 shows that the position of the two-digit quasi-false and the same can be different; the neck, the bad, the two-digit quasi-synchronous positive month and month conditions can be changed, the three-digit quasi-synchronous pulse is the same as the number 106078 .doc 1289409 One of the signals; and depending on the situation, one or each part of the three-digit pseudo-synchronous pulse may be raised or lowered. Figure 8 shows that the amplitude and/or position and/or pulse width of one of the positive and/or negative portions of the three-bit quasi-synchronous or three-bit quasi-synchronous synchronization can be subjected to modulation or change. Figure 9A shows at least a portion of the positive pulse of one of the three-bit quasi-synchronous pulses of the level change; the level of variation is, for example, from below the mask level to above the mask level. Further, Fig. 9B shows a gap between the edge after the negative pulse and the edge before the positive pulse; the gap may include zero value separation; likewise, the positive portion may extend into the rear portion and/or an active video portion. It is assumed that the gap voltage (1) is an occlusion level voltage (e.g., about volts volts) or a non-masking level voltage (e.g., - positive and/or negative voltage). The positive portion, its level can be seen in Figure 9C, which shows that one of the three-bit quasi-synchronous pulses is narrowed differently. Figure 9D shows the three-bit quasi-synchronous pulse portion. One of the narrowed and/or moved positive sub-segments is shown in Figure 9E - the three-bit quasi-synchronous pulse - the positive extension of the duration = 9F shows - the gap between the negative and positive portions of the three (four) step pulse; The duration of the positive portion can be extended. : ΓΓΑ展卜 The three (four) step pulse of the prior art; the figure should show one bit: the negative sync part of the position of the step pulse is moved; the map loc shows the narrowed negative part of the quasi-synchronous pulse; The other three bits of the same pulse are narrowed to the negative part. 106078.doc

S-57- 1289409 810, 812 3 reader 4 modification circuit 5 adaptation device 7 output 埠 8 sequential circuit 10, 501, 502, 503, 504 processor 40, 201 input terminal 42 > 102 > 202 > 701 ^ Synchronous splitter 801, 1001 46, 48 ' 50 , 52 , 706 , switch 806 , 1003 , 1109 ' 1136 56 ^ 58 capacitor 60 > 62 differential amplifier 64 peak detection circuit 66 ^ 76 operational amplifier 68 > 78 integral 70 - 80 voltage control amplifiers 72, 82, 114, 1010, output terminals 1124, 1130, 1132 103 addressing and memory circuits 104 mixer/interpolator circuit 105 waveform characteristics control circuits 113, 714, 808, 809, terminal 106078 .doc 59 1289409

1004, 1134, 1150, 1152 203 first counter 204 first memory 205 pixel clock circuit 206 second counter 207 second memory 208 flip-flop 209 > 214, 215 > 225 > AND gate 707, 1104 >1108, 1119 210 third counter 211 fourth counter 212 logic 213 timing generator 216 output signal control switch 217 amplitude modulation circuit 218, 219 buffer (amplifier) 221 multiplexer (adder) circuit 222 bits Quasi-Control (Variable Impedance) 223 Jumper 224 > 710 > 805, Amplifier 807 - 1007 301 Video Source 302 > 402 Modifier 401 HDTV Program Signal Source 106078.doc -60 - 1289409 403 Control Mode Reader 404 Adapted to HDTV device 702, 703 '704 ^ 1002 sequential circuit 708 OR gate 802 sync generator 1005 resistor 1009 DC recovery circuit 1102 counter 1103 memory 1105, 1107, 1120, 1118 sequential circuit 1106 gain control circuit 1110, 1112, 1113 voltage Source 1115, 1116 summing circuit 1117 scaling Road 106078.doc 61

Claims (1)

128 dream turn 9802 () number special shot request Γ 7Ί ~ Chinese Shen eye patent range replacement this (φ4 • 10, apply for patent garden: 1 · A method of modifying a video signal, which includes the following steps: Receive a video signal, Which generally follows a digital television standard and has a three-bit quasi-synchronization pulse associated with the blanking interval of the video signal; and modifies a portion of the video signal associated with at least one three-bit quasi-synchronous pulse, whereby the modified The video signal is such as to prevent the recording or carrying of information about its subsequent use. 2. The method of claim 1, wherein the modifying step comprises modifying at least one three-bit quasi-synchronous pulse. The method, wherein the modifying step occurs in at least one of a 70 degree channel or a chrominance channel of the video signal. 4. The method of claim 2, wherein the modifying step comprises reducing or raising the three level quasi-synchronization The method of claim 4, wherein the modifying step comprises reducing the amplitude of the trailing edge to a peak white level of the video signal to 6. The method of claim 2, wherein the modifying step comprises changing an amplitude of one of the ones of the three-bit quasi-synchronous pulses to asymmetry between the forward portion and the negative portion. The method of claim 2, wherein the modifying step comprises changing at least one of a position, an amplitude, or a width of the three-bit quasi-synchronous pulse. For example, the method of claim 2, the pot pushes a cow, a gossip έThe following steps:·Modifying a plurality of three-bit quasi-synchronous pulse U in the video signal. The modification is different between different scan lines of the video signal. For the method of claim 1, wherein the step is modified. Including at least one pulse 106078-960208.doc 1289409 At least partially added to the blanking interval. The method of claim 9, wherein the addition pulse extends into an active video portion of the video signal scan line. 11. The method of claim 10, wherein the active video portion is an overscan portion of one of the fields of the video signal. 12. The method of claim 9, wherein the modifying step comprises adding the pulse to the blanking interval before or after the one of the three-bit quasi-synchronous pulses, wherein the method of claim 9 is performed, wherein The modifying step includes adding the pulse to at least one of a luminance or chrominance channel of the video signal. 14_ The method of claim 9, wherein the adding pulse has a forward portion or a negative portion. 15. The method of claim 9, wherein the adding pulse has one of the configuration of the three-bit quasi-synchronous pulse. 16. 17. The method of claim 9, wherein the modifying step comprises adding the addition pulse to the leading or trailing edge portion of the three-bit quasi-synchronous pulse. 18. 19. 20. As requested in item 9, add to the blanking interval. The method of claim 9, the plurality of scan lines of the inter-masked signal, such as the method of claim 18, the amplitude, and the method of claim 9, wherein the modifying step comprises adding a plurality of pulses The modifying step includes adding a pulse to the gap, one of the features of the added pulses being different between the videos. And wherein the difference is characterized by adding at least one of a pulse width or a quantity. Wherein the added pulse is a gray level quasi-pulse and will be 106078-960208.doc I β ^ ^*·1·1·1·11· ------------------- -----p._ ιι_ι .』_______ 丄I , body: flr _ (, positive replacement i| ' 八 is added to one of the three-bit quasi-synchronous pulse trailing edge part. 21. Example: Method 9 Wherein the added pulse has a duration of one-third to two times the duration of the six-second quasi-synchronous pulse. 22. The method of claim i, wherein the digital television standard is a high picture Quality TV (HDTV) standard 23. The method of claim 1, wherein the standard is one of 720 line progressive scan (720p) or 1080 line interlaced (1〇8〇i) scan. The method of item i, wherein the modified portion at least partially defines a predetermined instruction for content management of the video signal. A method of requesting, wherein the modified portion is by receiving one of the video signals One of the sensing systems in the device generates an error output that prevents subsequent recording of the video signal. 26. As in the method of the requester, wherein the modified portion is in the video 27. In at least two channels of the number 27. 27. The method of claim 26 wherein the modification of the modified Φ portion of the video signal differs between the two channels of the video signal. The method, wherein the modified portion is in a selected scan line of the video signal in the active video, the active video being adjacent to the vertical blanking interval of the video signal. 29. 'It comprises the following steps: digital television Standard, and having a three-bit method for controlling the copying of a video signal without receiving an interval, receiving a video signal generally following an alignment sync pulse having a horizontal scan line with the video signal, modifying and at least one three digits准阁牛1平问步脉_ associated with one of the video signals; '106078-960208.doc 1289409 Repair (Ip is replacing 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. = part of the peak change at least partially - 骇 directive and method, which ::Includes... Newly modified three-bit quasi-synchronous pulse. Wide: The method of claim 30, wherein the modified portion occurs in at least one of the party or the chroma channel of the video. The method of 'the modified portion includes the amplitude of the reduced or raised one of the edges of the three-bit quasi-synchronous pulse. The method of claim 32, wherein the modified portion includes reducing the amplitude of the trailing edge Up to at least 20% below the peak white level of the video «. For example, the method of the monthly 3G, wherein the modified portion includes a changed amplitude of the portion of the three-bit quasi-synchronous pulse to make it positive Asymmetry to the partial and negative portions. The method of claim 3, wherein the modified portion includes at least __ of the position, amplitude, or width of the three-bit quasi-synchronous pulse balance that is changed. 30 method, there are further multiple three-digit quasi-identity in the video signal a pulse, the modifying step being different between the modified scan lines of the video signal, such as the method of claim 29, wherein the modified portion includes at least one pulse at least partially added to the blanking interval. 37. The method of claim 37, wherein the adding pulse extends into an active video portion of the video signal line. The method of claim 38, wherein the active video portion is an overscan portion of one of the fields of the video signal. 106078-960208.doc 1289409 40 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. The method of claim 37, wherein the modified portion includes before the position of the three synchrotron pulses Or adding the addition pulse to the blanking interval. The method of item 37 wherein the modified portion includes a pulse added to at least one of the 凴 degree or chrominance channel of the / '諕. The method of item 37 wherein the addition pulse has a positive and negative portion. I π 4 wherein the addition pulse has the three-bit quasi-synchronization configuration as in one of the method pulses of claim 37. The method wherein the addition is modified The portion includes the added pulse on the leading or trailing edge portion of the three-bit pulse. The method of :!=37 wherein the modified portion includes a plurality of pulses added to the mask/interval. In the method of claim 37, the modified portion of the packet is a plurality of packets (four)-pulse, and the (four) plus pulse _ feature 1 忒 video 不同 is different between the different scan lines. In the middle, the π7 &" set, amplitude, width, etc. add pulse == method, wherein the added pulse is a gray level quasi-pulse and I, added to the trailing edge portion of the three-bit quasi-synchronous pulse. The method of finding = wherein the added pulse has one of one third of the duration of the two-bit quasi-synchronous pulse, as in the method of claim 29, the A (10) TV standard. "The medium-degree digital TV standard is a high-quality TV 106078-960208.doc 1289409 凡曰修 φ正换页 rS.M f.:. " - ^ ' 51 · The method of claim 29, where The standard is one of a 720 line progressive scan (720p) or a 1080 line interlaced (1080i) scan. The method of claim 29, wherein the modified portion at least partially defines content management for the video signal. The method of claim 29, wherein the modified portion blocks subsequent recording of the video signal by causing an inductive system in the device receiving the video signal to generate an error output. The method of claim 29, wherein the modified portion is in at least two channels of the video signal. 55. The method of claim 54, wherein the modification of the modified portion of the video signal is in the video signal The method of claim 29, wherein the modified portion is in a selected scan line of the video signal in the active video, the active video being adjacent to the video signal 57. A device for modifying a video signal, comprising: an input port adapted to receive a video signal substantially in accordance with a digital television standard and having an aperture interval associated with the video signal a three-bit quasi-synchronous pulse; the processing is coupled to the input port and modifying a portion of the video signal associated with the at least one three-bit quasi-synchronous pulse, thereby preventing the transmission by the secret frequency Recording or carrying information about controlling its subsequent use; and - outputting 'which is suitable for outputting the modified 58. If requesting item 57 m # ^ ^ " Rotating, wherein the modifying step includes modification At least one 106078-960208.doc 1289409 Replace page Three-bit quasi-synchronous pulse. 5 9 - A method for modifying a video signal, comprising the steps of: receiving a video signal that generally follows a digital television standard and has three quasi-synchronous pulses in the blanking interval of the video signal, wherein Changing a portion of the video signal associated with the three-bit quasi-synchronization pulse to prevent recording of the video signal or to carry information about controlling its use; and modifying the reception associated with at least the three-bit quasi-synchronization pulse The portion of the video signal that is received to allow subsequent recording or change of the video signal to control the use of the video signal. 60. The method of claim 59, wherein the modifying step comprises modifying at least one of the three-bit quasi-synchronization pulses that have been previously changed. A method of π finding 6G wherein the modifying step occurs in at least one of the redundancy or chrominance channels of the video signal. The method of claim 60 wherein the modifying step comprises decreasing or raising the amplitude of one of the trailing edges of the three-bit quasi-synchronous pulse to a reference level. The method of claim 62, wherein the modifying step comprises raising the amplitude of the trailing edge from at least 20% below the peak white level of the video signal to the reference level. The three-bit quasi-negative part, if requested, is changed to (4) by changing the amplitude of the - part of the sync pulse to make it symmetrical. 65. 106078-960208.doc 1289409 Change to a reference g•—豕一66. 67. 68. 69. 70. 71. 72. 73. 74. 75. If the method of claim 60 is used, The method includes the following steps: modifying a plurality of the previously changed three-bit quasi-synchronization pulses in the video, the odor changes being different between different scan lines of the β-Hui video signal. (2) The method of (4), wherein the phase modification (4) comprises deleting or attenuating at least one of the bits of the mask/interval. The method of page 67, wherein the deleting or attenuating pulse is in the method of deleting the 四 伸 该 四 四 四 四 四 四 四 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效 有效An overscan portion. Two: The method of claim 67 wherein the modifying step comprises deleting or attenuating the pulse located in the blanking interval before or after the one of the three level = pulse positions. The method of I j :::: 7 wherein the modifying step includes deleting or attenuating the pulse from at least one of the video signal :: or the chroma channel. The method of item, wherein the pulse of deletion or attenuation has a positive or negative portion before it is deleted or ablated. Ϊ = method of item 67 wherein the deleted or attenuated pulse has one of the three-bit quasi-synchronous pulses configured before it is deleted or ablated. As in the method of claim 67, the modifying step in the basin includes deleting or attenuating a pulse in one of the leading or trailing edge portions of the leveling sync pulse. The method of ^, 々, 67, wherein the modifying step includes deleting or attenuating a plurality of pulses located in the interval. 106078-960208.doc 1289409 76. 77. If the request item is to the law, (2) the step includes deleting the second of the multiple obscuration intervals:: The one of the ones that are deleted or squandered It differs between the apparent scan lines before it is deleted or attenuated. The n Hai method, wherein the change is characterized by at least one of the pulse widths or quantities. One such as the position of the request 76, the amplitude, the method of the requester 67, wherein the pulse of the deletion or attenuation is a gray level pulse and is located at the trailing edge of the three-bit quasi-synchronization pulse before it is deleted or attenuated Part of it. The method of claim 67, wherein the deleting or attenuating pulse has a duration during its deletion or attenuation, the duration being one-third to two times the duration of the three-bit quasi-synchronous pulse. 80. The method of claim 59, wherein the digital television standard is a high definition television (HDTV) standard. 1. The method of claim 59, wherein the standard is one of a 72 line progressive scan (72 〇p) # or a 1080 line interlaced (1080i) scan. The method of claim 59, wherein the information in the received video signal partially defines a predetermined command for content management of the video signal. 83. The method of claim 59, wherein the recording of the video signal is blocked by causing an inductive system in one of the devices receiving the video signal to generate an error output. 84. The method of claim 59, wherein the changed portion of the video signal is in at least two channels of the video signal. 106078-960208.doc 1289409 ' , ! 85. 86. 87· Paper 2, -8 The method of claim 84, wherein the change of the video signal is different in the two channels of the video signal . The method of claim 59, wherein the changes are in a selected scan line of the video signal of the active video, the active video being adjacent to the vertical blanking interval of the video signal. An apparatus for modifying a video signal, comprising: an input port adapted to receive a video signal, generally following a number of % television standards and having a three-bit quasi-synchronous pulse in the blanking interval of the video signal 'has previously changed a portion of the video signal associated with the three-bit quasi-synchronous pulse; the processor's face to the input and modifies a portion of the received video signal associated with a three-bit quasi-synchronous pulse To allow the video signal to subsequently record or change information about controlling its use; and an output port coupled to the processor and adapted to output the modified video signal. • 88. The apparatus of item 87, wherein the modifying step comprises modifying at least one of the previously modified three-bit quasi-synchronization pulses. 89. A device for modifying a video signal, comprising: an input port adapted to receive a video signal, generally following a digital television standard and having a three-digit level in a blanking level of the video signal a sync pulse that has previously changed a portion of the video signal associated with the three-bit quasi-synchronous pulse; a processor that interfaces to the input and modifies the received video associated with at least one three-bit quasi-synchronous pulse One part of the signal, with 106078-960208.doc 1289409 ^ 2 -QV, allows the video recording of the video to be subsequently recorded or changed to control its use of the message; and the transfer of i阜, Gan, & Qn i^ Modified video signal. 90. If Qi Jingqiu 89 has changed before =7,,,, wherein the modifying step comprises modifying at least one of the quasi-synchronous pulses. 106078-960208.doc -11 -