TW401703B - Method and apparatus for improved horizontal and vertical overlay signals for greater concealment in modern TV sets - Google Patents

Abstract

Video signals are scrambled by position modulating or switching between two types of modified or switching between two types of modified horizontal sync pulses. These modified horizontal pulses are modulated or switched at a rate that causes a non-interlaced tearing pettern when viewed by an unauthorized viewer, whereby greater concealment is achieved by the invention when compared to the prior art. The modified scrambling process also is adapted to achieve lower tuner AGC artifacts. With added fake vertical sync signals and strategic use of double or multiple horizontal sync pulses per TV line, modern TV sets using count down circuits are also affected vertically to enhance the concealment effects.

Description

j401703 V. Description of the invention (1) Background of the invention The present invention relates to the method of sending a letter-letter 5 in the air or via a cable TV environment, and in particular, it can generate non-interlaced levels, such as: electrical f encryption technology and selection of horizontal masking intervals A pair of flat β. One of the horizontal separation and the vertical instability of the video program image. Erming's typical encryption system for horizontal and vertical coverage signals is the same as that used in the prior art. That is, when ceramic oscillators should be used to control oscillators applied to the scanning system of modern televisions. The effect of the present invention and the monitor m which enables the display of the polar tube are also effective, such as an LCD (Liquid Crystal Display), a display system with a solid display and an electronic device. The encryption system based on typical previous technology is invalid for the horizontal and / or vertical synchronization modification of more modern TVs. Because its scanning system contains digital circuitry, this modern TV can be locked with or without vertical sync pulses — modifying the TV signal. Therefore, an encrypted TV signal containing a previously time-variable vertical synchronization signal has no effect on this type of modern TV set, even if such a prior art signal is used on an old TV set using a conventional horizontal oscillator as the encrypted frequency will lead to good results. Hidden. The previous modification of the previous process level covers the simultaneous modification to use staggered bears. In the past, the interlaced (interlaced) pattern was considered to achieve maximum concealment in the face of the day, but it was found that this type of paternal (interlaced) pattern was less concealed because it was distributed and separated on the two images. Therefore, it appears to dilute the separation. That is to say, according to the present invention, more encryption concealment can be achieved because the horizontal synchronization system uses a non-interlaced frequency that is a multiple of the frequency of the day to adjust the position. This one

Page 5 401703-V. Description of the invention (2) Consistently producing a separate pattern is usually the same in each picture and less visual content. It should be noted that according to some horizontal sync width amplitude modulation methods (that is, the pulse width of the horizontal sync system is adjusted by about 3: 1 2. 4 microseconds (" s) to 7 ys), the decoded wave will occur due to the TV or cable tuner. Because of its automatic RF and / or IF gain control (AGC), it can detect the encrypted horizontal synchronous pulse width. Therefore, a narrow horizontal synchronization width can output a different AGC voltage than a wider horizontal synchronization width. The video gain of the tuner is then adjusted according to the horizontal sync width, and as a result, an undesirable AGC wave is generated. The typical purpose and advantages of the invention are: change, concealment b) can be hidden with the right vibrator; c) the wired invention about the encryption method can produce the only best non-interlaced horizontal synchronization can be de-encrypted 'override' TV viewers can have more effective levels, can be set up, can be changed, and can only be changed.-Synchronous modulation of the horizontal multiple of Λ. It is a TV watching wave combination in the encryption method, which can be de-encrypted. Occurrence of more horizontal and modern TVs% Jade ± Jade mutual concealment is especially prepared with digital reciprocal circuit materials such as the scanning system, the use of ceramic harmonic and j-number circuits in these TV sets contain the occurrence of this increase. Can be provided as above "丨 丨 + Decrease in the spectrum tuner's mouthpiece method has TV or abstract warfare-or no AGC radio waves. 401703 V. Description of the invention (3) Provide the method and Device. To achieve this, a first example of the present invention includes a method and device that modifies the pulses that are 'pulsed' within a standard horizontal masking interval of about 11 microseconds (s). If later solved The synchronization and pulse of the encryption system exceeds the standard horizontal masking interval (that is, greater than the type 11, β S '', such as 14 A s), then the modified or encrypted synchronization or pulse exceeds the extended horizontal interval and thus produces a larger Horizontal concealment. According to the first example of the present invention, the horizontal synchronization and / or pulse masking signal is preferably narrowed by about half within the horizontal masking interval. The synchronization and / or pulse system narrowed according to one situation is exactly in a valid position. The video program line terminal is located at the first position. This allows an aisle of about 400 nanoseconds (ns) (if necessary). The present invention does not require this aisle (200ns to 500 ns may also be used). Working in the aisle period). In another position, the narrowed synchronization and / or pulse positioning is closest to the beginning of the following program video line. The final positions of these two narrowed synchronization and pulse positioning are shifted by about 6 β s "Gap" (even in the case of increasing the horizontal obscuration interval, and thus increasing the gap there is greater displacement). The encryption method of the present invention includes performing position adjustment or switching between two positions (including) at a rate of N * picture frequency (where N is a positive integer). For example, at, the picture frequency is 59.94 Hertz (Hz). It is found in many televisions that the maximum concealment (at N = ll) and the modulation rate are a non-interlaced frequency of about 60 Hz. According to this example, it has been found that pictures with interlaced frequencies such as 690 Η z do not provide concealment to the horizontal horizontal coverage pattern equal to 660 non-interlaced frequencies with ζ ζ. The invention is also practical in other scanning standards including pAL, SECAM and higher line and frame rates used in higher resolution television systems.

401703 V. Description of the invention (4) Regarding the slender scroll effect (screen up or down) with even more concealment, the synchronous modulation modification rate of the 660 Hz example is 654 Hz to 666 Hz. Therefore, concealment can also be provided according to the following frequency ranges of N = 8, N = 9, N = 10'N = 13: 474 Hz to 486 Hz, 534 Hz to 546, respectively

Hz ’594 Hz to 606 Hz, 714 Hz to 726 Hz, 774 Hz to 786

Hz 'and so on. Any combination of horizontal sync pulses can be modified using these different rates of frequency changes throughout the frame. For example, the top and bottom thirds of the TV picture have modified horizontal sync pulses modulated at 714 Hz, while the middle part of the picture has modified horizontal sync pulses modulated at 665 Hz. Therefore, 'in order to provide the best horizontal concealment with a slender scroll effect vertically, for example, the synchronous modulation rate is made equal to the picture frequency plus or minus the picture frequency κ * 10%', where the value of K is usually between 0 and ι (inclusive). For example, κ may be greater than one. The optimal narrowed horizontal synchronization width, regardless of positioning or position, is the same for each TV line system, thus reducing or eliminating tuner AGC radio waves. According to the second (alternative) example, insert a false vertical sync (V-sync) pulse before and / or after the positioning of the normal vertical sync pulse (for example, in NTSC, lines 1-3 and lines 18-20) and Remove the normal vertical sync pulse (wide sync pulse). For example, these false vertical pre- and post-vertical sync pulses can be switched alternately from a position (before V sync) to any position (after V sync) at a selected frequency, such as the diurnal velocity or at a selected frequency. At a random rate. These pseudo-vertical pulses are normally included in many TV sets and cause the image to jump up and down (vertical bounce), but not in more modern TV sets that use digital resonator circuits of ceramic resonator oscillators and scanning systems. But as above

401703 Fifth, the development and regulations "-For example, the application of horizontal synchronization modification in more modern TV sets can indeed cause the horizontal and / or vertical separation and / or vertical beating of the scene image.邛 There is even more concealment when the vertical beating is added. 'A small portion of the effective day-to-day office, including the vertical obscuration interval (if possible), may include the horizontal synchronization pulse of the force π to provide Dual Horizontal Synchronization Modification (" Double Synchronization ") i ϊI step technology. This dual-synchronization modification can be switched into the second level of each line to t i to make the countdown circuit in modern television miscalculate or improperly perform, because the vertical movement and the accompanying image are hidden. Top and / or bottom and / or (time gate = part, where the dual sync pulses are usually switched into minutes / parts), it is not as good as the first example-the level caused by the equal = pass two: this dual sync modification encryption The procedure is not necessarily bad. Because most of the program subjects that are usually interested, 170 ^ 85, he reduced the concealment to 15%, which is the best modification of the second example, such as the consequences. Later in this issue, it can include the middle 80% of the above-mentioned first congratulatory example, and the dual level is also modified with + = 7 and ν. It should be noted that the application of the double pulse pulse wave of the second real 1 歹 J to the whole TV ^ only when the vertical pulse wave is combined will make the modern television; m and when separated from the false plane. For example, if the vertical bounce is the same as in the first example, which is related to the AGC radio waves, the best step for modification is that each line has the same effective backup. The double-same standard described in the application is used. Within the double-synchronous modification, at the top And / κ flat pulse. In order to achieve this, a small number of lines of the double-synchronous pulses are positioned at intervals, and / or a single horizontal pulse equal to other lines is obscured vertically. In winter, the sum of the nine degrees is essentially the time when Tadao enters the double-synchronous pulse.

401703 V. Description of the invention (6) Therefore, the width of each individual synchronous pulse _ must be narrow. For example, there are eight, eight, and one early or one after the horizontal synchronization pulse. When switching to the double-synchronous pulse wave two, one 4 A s can be used to synchronize the flat synchronous pulse wave, but it is obvious—one = TV lines can use two 2 # s water is just one of the normal pulses. The width does not have to wait. ° Discussed under M. Figures 1 E to 1 G will explain this figure. The foregoing and other detailed descriptions of the present invention will be more obvious. The characteristics can be matched with the following best entities. Figure 1 A shows a typical TV The horizontal obscuration interval period of the lines; FIG. 1B illustrates the horizontal synchronization of the pre-pulse (pRH). One aspect of the present invention is to modify the horizontal synchronization to a part of a plus k number and includes (if necessary) the interval B is typically 200 One channel between nanoseconds (ns) and 500ns; Figure 1C illustrates the horizontal synchronization pulse (pSH) of the present invention is modified to a part of an encrypted signal, and includes an interval or gap G In order to separate the displacement between the PRH and PSH via a gap (measured in units of time, such as microseconds); Figure 1D illustrates the dual horizontal synchronization modification of the present invention used to produce vertical jumps in modern televisions, especially when synchronizing with false verticals When the modification is combined; Figure 1E illustrates the dual horizontal synchronization modification of the present invention in which the synchronization widths PRH 'and PSH' have been reduced to avoid the tuner AGC radio wave; Figure 1F illustrates the horizontal preamble modification of the present invention (PRH ") its pulse wave width 'The sum of the widths' within about FIG. 1E PRH, and PSH described PRH " is a modification of FIG 1 E and the inner surface of the day with the use of video to avoid radio wave modulated AGC ritual;

Page 10 401703 V. Description of the invention (7) Figure 1G illustrates the horizontal post-synchronous modification of the present invention (PSH ") 'The classic system is as shown in Figure 1 B' 1 C and position adjustment with Figure i F iPRtI, and The modification of Figure 1E is used in conjunction to avoid the tuner AGC wave; ~ Figure 2A illustrates the horizontal forward synchronization of the present invention in which the teeth pass the edge of the television encryption method as described in US Patent 5,438,620 (see below) Fill the area and explain a situation where increasing the horizontal obscuration interval can achieve greater separation (cracking) and concealment; Figure 2B illustrates that the modification of the present invention has an increased gap, g EF 'because of the use of moving horizontal forward synchronization The pulse wave enters the edge or fills the area outside the horizontal obscuration interval; FIG. 2C illustrates an example of the first example of the present invention in which the gap width and the resulting separation are more than 6.1 microseconds, and the description is at 6 6 0 The Hz on and off non-interlaced frequency rates alternately turn on and off PRH and PSH in the line block; Figure 3A illustrates the first example according to the program video image (see Figures 1 and 1 C of the X and Y descriptions) Modify the possible position of the horizontal sync pulse ; Figure 3B illustrates the second example of possible positions to modify the horizontal sync pulse, especially when used with the addition of false vertical sync pulses (see Figures ΐβ, ic, and 1D illustrated by X, Υ & χγ). A vertical runout occurred; 3 C »Er Ming's use of a padding area to increase the separation of the possible positions of the modified horizontal synchronization pulse, also explained to enhance the vertical runout (see X, Y, XY and X, illustrated in Figure 1B", 1C (1D and 2A) characteristics of the second example; Figure 3D illustrates the possible modification of the horizontal synchronization pulse wave. Among them, the horizontal separation or vertical jump occurs especially when used with a false vertical synchronizing pulse wave, and according to the TV line, because Use a pulse width or pulses with about the same energy

401 ^ 03

’Τυ 和 了’ Explanation 5. Explanation of the invention (8) The width explains how to avoid tuner AGC radio waves, see (υ, IE, 1F, IG and 2Α);

Fig. 4 illustrates that the scanning system package of a modern television is a ceramic resonator oscillator to obtain signals from a video signal reciprocal circuit (driving) and horizontal driving (H driving); 'Lai's vertical drive (V Fig. 5 is a block diagram illustrating the foregoing first example and the form of the example; ^ including the second embodiment of the present invention Fig. 6A is a block diagram of the present invention describing the sensing edge > Increase the level of the pre-pulse more effectively. Eight = the limit of the full area; and the electric effect of the gastric plus effect. Figure 6B is a block diagram of the present invention illustrating the use of an edge full control signal obtained by the line. A more on-line = alternative circuit of the inverter wave such as US Patent 5, 438, 620, see the description of the best example of the 7LV flat presynchronous pulse. As described above 'Figures 1B to 1G and 2A to 2C The television sub-pictures are modified according to the present invention by way of example, and the video modification of the horizontally obscured interval is described above. These pictures are explained above, together with FIGS. 3A to 31). = Steps are explained below. For further reference, first of all, Figure 4 is the scan circuit of a modern television (TV), which is shown in the figure. A video signal received by the television is supplied to a synchronous separation. According to this example, the video signal includes the synchronous modification of the original bamboo 1 y L illustrated in FIGS. 1B to 1D, and / or the replacement modification of FIGS. 1E to 1G and 2A to 2C. The synchronous splitter 4 can therefore provide a horizontal synchronous pre- or post-synchronous pulse (or position modulation ^ step ^ wave) 'and a double-synchronous pulse of the present invention on the Ηsynchronous output. = η Π W m

401703

The output is applied to a phase detector 4 丨. Because the horizontal pre- and post-synchronous pulses are one input, a low-pass filter amplifier 42 can add an error voltage to a ceramic voltage control oscillator (VCD) 43, where-the error voltage is indicative of water Phase of the post-synchronous pulse. A ceramic resonator 44 can supply 32 times a frequency, which is called horizontal frequency iVCD 43. The output of VCD 43 is now a phase modulation signal and is divided by 32 by a countdown circuit 45 digits to provide an output driven by a bit modulation horizontal frequency signal H. Therefore, the driving signal provided by the circuit 45 is a phase-modulated scanning signal and is shifted from side to side. 7 Symptom According to the operation of FIG. 4, the phase detector 41 also receives two synchronization signals I before and after the horizontal level f from time to time. This allows the phase detector 4 to output an error signal such that the ceramic resonator voc 43 supplies a corresponding error frequency from time to time. This error frequency signal makes the countdown circuit 45 and the countdown circuit different. This inevitably causes the circuit 46 to generate a phase-modulated vertical drive v drive when the aforementioned pseudo vertical synchronization signal J 4 occurs. Therefore, from time to time, the driving signal from the circuit 46 may make the scanning system unstable in the vertical direction, so that it can achieve the concealment expected by the present invention. The block diagram of FIG. 5 illustrates by way of example only one device of the present invention. Nature

The circuit of d.5 can generate the 1 T 1 waveforms in Figures 1β to 1D and Figures 1E to 1G and 2A to 2C. 3A or 36 and 3C or 3D display program video image 7 horizontal synchronization modification or waveform positioning. • Ϊ The first example of the present invention shown in Fig. 5 can modify the video signal so that the original horizontal synchronization and pulses of β are replaced by a set of lines with a horizontal preamble signal 彳 § followed by a set of horizontal postamble signals.

Page 13 V. Description of the invention (10) and the lines of the pulse signal. The device shown in 5 is inserted into the second (alternative) instance of the moon from time to time. The two types of synchronization and color pulses on the top and / or bottom of the electric day (including the vertical obscuration interval). It has a horizontal front and a horizontal 5 which also describe the replacement or cover part of the second example. The figure inserts a false vertical synchronization signal, also the circuit of the step number ^, where the circuit wave, which is based on different TV i "I 21 vertical post sync pulse between Hz. Regardless of its parental rate is 9 Hz to 12. Referring to FIG. 5, the program video is added to a video variant via a frequency converter / processor 62 ^ area 堍 fi9 v lead 61. Instead, the video of the inverter is one of the practical aspects of the present invention-a typical device can convert the effective video back and forth and / or position-modulate the video cable. Double-changing has: often can output standard synchronization and pulses, although two 5 Productive;: The obscuration edge at the end of the frequency line. See Figure 2A, ί ^; after 0: feed the output VID i of the inverter / processor 62 to the pulse = oscillator 64 which can be generated-count φ5, ancient thoughts; Sub-carrier frequency signal. Oscillation: 6 4 has a phase adjustment to match the phase of the color pulses to the phase of the video signal supplied to the amplifier 76 via the video input 0 and a resistor R3. The circuit 62 supplies its output VID 1 to a sync separator circuit 63. The synchronization separation circuit 63 must also supply signals including a synthesizer (com) synchronization, vertical synchronization (ν synchronization), horizontal synchronization (H synchronization), and diurnal pulses to a generator 66. The time generator 6 6 includes a line counter 'overlay reset pulse, a program memory, a complex vibrator circuit, and combinational logic, which can provide five, a description of the invention (11) to output the signal: a) is valid Horizontal Preamble (PRH) in the daytime TV b) Horizontal Postamble (PSH) in an effective TV picture c) Vertical Preamble (PRV) d) Vertical Postamble (psv) e) Horizontal mask interval signal (HB1) f) vertical obscuration signal (V obscuration); g) the vertical synchronization obscuration signal activated in the effective television daytime is the same as hB j _ signal, h) the television daytime (top / bottom positioning line) ) High frequency signals in the top and / or bottom sections. The clamped video signal v 丨 卩} is supplied by a frequency conversion processor / processor 62 to a 65 '. This switch is used to obscure the ground in the effective day. The switch 65 is also used to eliminate the intermittent signal from the inverter / processing H. Therefore, the output of switch 65 is then in full-vertical vertical synchronization and pulsed video. The output of the switch is also not vertical. There is no synchronization in the plane. There are horizontal and v pulses with color pulses in the direct blanking interval, but HBI masking / vertical sync masking included in the vertical 66 = Y sync. The use of timing generation is via the -amplifier 75 and the resistor core: the control switch 65, the output of which uses the -Η coverage generator 67 to switch the wheel to the amplifier 76. = Input to the interlock circuit 69, and it is set to W. Output of generator 67 = control. When the ββ1 pulse wave from the generator 66 fills the horizontal rate pulse wave circuit outside the area due to prolonged separation, the ββί and -__ flash lock circuit 69. Let ask lock

Page 15 Waves that cover most of the effective day and day, synchronization pulses before and after the horizontal 401703 V. Description of the invention (12) The output of the circuit 69 changes the horizontal interlock circuit 69 to prevent the generator 67 from changing in the water. The state of the beginning period. The state between the latches is required, sometimes to prevent the generator 6 7 ^ and the horizontal post-synchronous timing wave. A jumper 72 to a load is assumed to be installed: the external double-synchronous pulse occurs. Lead, so that the 0R (or use) wave gate 7l bottom positioning line signal 0R wave open 71 at this time is used as a buffer. Two = rounds out. This means that the complementary mode is switched to a multiplexer circuit. The output of the circuit 69 now presses the gate circuits 77, 78 and 79. Then the wave gate 79 bis, the circuit includes the modified synchronization pulses after the wave level ...: ^ with horizontal front or water distribution (also see wave question 79: monthly changes can also produce negative (front and back) synchronization The pulse wave is the reverse input of two 76. 々 Output No. 4 is amplified as a wave:: ^ S i 5 'Among which, two horizontal synchronous pulses before and after the horizontal can output one f. When the jumper 72 is open, the timing generator 66 And / or bottom Qiu to a resistor R1 5, this resistor is at the top of the video screen in the check bar at the beginning of the state. For example, the resistor R1 5 has a signal top $ and; ^ t22 to 52 and 232 to 2 6 2 High frequency. According to this example, in the bottom & chrome I line group, the horizontal post-synchronous pulse is often inserted. At the top and the output: L ^ and the horizontal pre-synchronous pulse is also added, @ is Response Η coverage rate. It is controlled by the output signal of the pile lock circuit 69. Therefore, when ^ level is not installed, the top and bottom part of the video daytime may sometimes be horizontal. 3B illustrates this situation. Figure 3B illustrates that the above-mentioned levels can be inserted in the program section and the 7 or bottom section of the program. Step and horizontal post-synchronous pulse. 401703 V. Description of the invention (13) As mentioned in the previous section, the dual synchronization is modified to ancient 4 + Shijiao vertical sync pulse. Combined with two or ^ ^ The output of the generator 66 can provide vertical and "straight sync pulses" fixed waves. The vertical front and rear vertical sync pulses are at least as high as the rear sync pulse height. At the same time, these pseudo vertical pulses are best in the half of the TV line It also includes a logic baffle circuit 80, ^ series == horizontally obscures the outside of the gap. The vertical multiplexing of φ and 82 may alternately switch the pseudo-circumferential circuit via resistor R5, ... 76. Vertical The step pulse wave of the multiplexer circuit is equal to-the time lock comes from the vertical generator Vs 6sV ^ j. Lines 1 to 3 can be used to illustrate the false vertical synchronization by applying a vertical preamble pulse. Apply the vertical according to lines 18 to 20 Post-synchronization signal] 'The generator 68 and the interlock circuit 70 can provide-an output signal, which can alternate between these two false vertical synchronization pulses at a rate of 10 f12 Hz as written.-, For each level and / Or after the synchronization pulse, the color pulse will be restored, and the output of the gate 79 will be restored. The output is coupled to the click time circuit 83, and its output is a pulse of 1, 4〆s triggered by the post-record of 号 s number from the sluice 7 9. Click the output of 8 3 and then control the switch 7 3. The output of switch 7 3 contains a new pulse cover of about 5 carrier cycles, which is triggered by a horizontal front and / or post-synchronous pulse wave. The output of switch 7 3 is for output to any Select the chroma passband wave passer 7 4 and its output can then restore the modified pulse mask to the line before and / or after each level through the resistor R 7 and amplifier 7 6. Note the horizontal preamble width It does not need to be equal to the horizontal post sync width.

Page 17 401703 V. Description of the invention (14) 'Moreover, the vertical preamble wave period does not need to be the same wave period as the vertical post sync. Generators 67 and 68 in FIG. 5 may be periodic and / or random and / or pseudo random generators. Figures 6A and 6B are block diagrams of alternative circuits of the present invention to increase the amount of separation or concealment by using the edges to fill the mask. If the frequency converter / processor 62 of FIG. 5 includes a signal-encrypted video line type such as a U.S. patent. 35〇78 '5'438'620, 5,579'390, 5,581,30 7,5,6 08,799 and U.S. Patent Application δ, Serial No. 08 (400,831 and 08/401, 015 (All patents are incorporated by reference) Can reduce the horizontal obscuration interval (ΗΒΙ) from u microseconds to about 10 microseconds. The encryption system described in the above-mentioned patents and applications is commonly referred to as PhaseKrypt (phase concealment). A reduction of HBI (HBIR) usually means Means to reduce the gap between the pulses before and after the level. This reduction will produce slightly less effective concealment. But if the level 1 sync pulses start to decrease] 〇β s HBI margin area, the gap It will be larger again. The padding area occurs about 2 μs in the end and start of effective television lines. For an example, see Figure 2 Α.

a) The prepared inverter / processor 62 does not enable PhaseKrypt, then the HBI is about 11 s. This can accommodate a gap of about 6 // s and the corresponding separation amount. b) If PhaseKrypt is enabled, the new HBI or HBIR is about 10%. This can accommodate a gap of about 5 # s and the corresponding separation amount. c) If PhaseKrypt is enabled and horizontal pre-synchronization is used to trigger (line termination) the edges fill the obscured edges, beij Η B I is approximately between 1 〇 # s and 1 2 // s. This can accommodate an interval of about 5 // s to 7 // s. See Figure 2B, spaced GEF. Therefore, the average separation was extended back to 6 ys. Of course,

Page 18 401703 V. Description of the invention (15) Wave. Ϊ :: The beginning f edge fills up to move horizontally outward. Synchro pulse fU-> Figure 2 A shows the end of the line edge filling. From the age filter 亮度 through the brightness filter 90, you can get 5 pictures from the inverter / processor 62 91 = signal VID1. The output of the filter 90 is supplied to the comparator: Edge = = logic high just after the brightness value of 10. -Asked wave circuit 9. Upper and middle pass the output of the comparator. The logic of the circuit 92 turns out early strikes 93 and 94 to form a horizontal pre-synchronous pulse. Clicking on the 93 series or reducing the QB1 cycle suppresses wealth is triggered. The output of the single tap 4 is then used instead of the horizontal preamble of the timing generator 66 of FIG. An alternative circuit for expanding the gap. Figure β, reducing the signal logic of the signal ^ ^ The brake circuit 96 and the inverter / processor 62 from Figure 5-can make a single touch 97 to provide some miscellaneous sounds. The HBIR pulse will trigger a water skin. One-touch 98 and 99 form the "Enhanced I" interval horizontal pre-pulse ^ and then use the output of one-touch 99 instead of the flat-sync signal of the timing generator of Fig. 5. • Although the above description can provide a full and complete disclosure of the best example of the present invention, but its different modifications' alternative structure and equivalent invention are good at this work, and it is even clear :. For example, 'with a different generator source, you can independently insert as described in E: E: Bi-level sync pulses (on the top and / or bottom of the video frame). Figure 5 is the same? The pulse wave is a generator 67 which can be inserted into the main horizontal pre- and post-horizontal synchronous pulse waves. Moreover, the pulse width, positioning, color pulse, and frequency can also be encrypted (as mentioned in the present invention). Π · Page 19 401703 V. Description of the invention (16) In addition, if the AGC circuit (constant) of the tuner is modified to accept the varying horizontal pulse width, the wave width is modulated. According to this situation, the frequency or frequencies of the present invention will be close to some of the frequency of the day (using the pulse width and pulse position modulation) can be applied within the scope of the present invention = some cases, some can be eliminated This kind of synchronization pulse is unlocked, so the frequency conversion or encryption frequency system can be connected to the system. It is a unique encryption system. The invention of Buxinzang will modify a standard video signal and include only horizontal synchronization pulses. Modification of wave, straight pulse synchronization, etc. That is, increasing the AGC voltage time can use the modulation frequency (and / combination) multiples of an instance of horizontal synchronization pulse. Some combination is also possible. General horizontal synchronization adjustment The wave is used to hide the ceramic harmonics in the TV. The horizontal and / or vertical are the same as the only encrypted number used by other encryption systems.

Claims (1)

401703 • M No. 6. Applying for patent amendments. 1. A method for enhancing the encryption effect in a video signal in a video line drawing place where one of the normal horizontal and vertical synchronization signals is horizontally and vertically obscured, including: replacing the normal horizontal signal with the horizontal preamble signal of the first selection line ; Replacing the normal horizontal sync signal with the horizontal post sync signal of the second selected line; and β modulating the horizontal pre and horizontal post sync signals with a selected non-interlaced frequency position to provide an additional horizontal separation that can enhance the encryption effect. 2. The method of claim 1 includes: inserting a horizontal preamble signal into a selected horizontal preamble line block of a video field; and inserting a horizontal postamble signal after a horizontal preamble block Synchronized within the line block after the selected level. 3. As for the method in the second item of the patent application, the pre-horizontal and post-horizontal synchronized line blocks are continuously alternated between about 70% and 85% in the middle of the video field. 4. The method according to item 2 of the patent application scope includes: inserting a vertical preamble signal into the selected line group of vertical blanking interval before the normal vertical sync signal; and inserting a vertical postamble signal in the normal vertical sync Vertically obscures the space within the selected group of lines after the signal. 5. The method according to item 4 of the patent application, wherein the vertical preamble signal is inserted in the video field line treaties 1 to 3, and the vertical postamble signal is inserted in the video field line treaties 18 to 20. 6 · The method of applying for item 2 of the patent scope, including: ------- 87120942 cP March 31, 2006 6. Patent application scope. Replace the normal horizontal synchronization signal at the top and / or bottom of the video field with the horizontal mask interval of the selected line group at the top and / or bottom of the video field. ^ The method according to item 6 of the patent application scope, wherein the selected line group at the top and bottom of the NTSC video field is usually the individual lines 2 2 52 and 232 to 262 of the video field. _ • The method according to item 6 of the scope of patent application, wherein the energy of the dual horizontal synchronization signal in the video line is substantially the same as the energy of the horizontal synchronization signal of other video lines. 9. The method of claim 1 in which the non-interlaced frequency is equal to N * field frequency, where N is a positive integer. The method as in item 9 of the patent application range, in which the 4 selections of the video field are adjusted at different non-interlaced frequencies. In the method of item 1 of the scope of patent application, ‘where the non-interlaced frequency is equal,’ the field frequency is added or subtracted from the field frequency K * 10%, where N is a positive integer κ between 0 and 1 (inclusive). ', Such as the method of applying for item u of the patent scope, wherein the non-interlaced frequencies within the "% color television standard" include frequencies 474 to 486 Hz, 5 34 to 546 Hz' 594 to 606 Hz, 654 to 666 Hz, 714 To 726 Hz, 774 to 786 Hz, etc. _ The method of applying for the scope of the first item of the patent, where the pre-horizontal and post-horizontal synchronizing signals have a narrow width of about 2 to 4 microseconds. The method of item 3, wherein the time gap between the pre-horizontal and post-horizontal synchronization signals is about 5 to 7 microseconds, 1 5. The method according to item 1 of the scope of patent application, wherein the period can be reduced Horizontal masking interval, including: 2000. 03.13. 022 401703 Correction Edge iir obscures the gap between the opening and closing of the video. Provided at the video line terminal-Dan / Two [otr, insert the horizontal preamble signal in the edge filling area. Such as the scope of patent application! Method, in which the horizontal occlusion interval can be reduced during the position modulation period, including: providing an edge fill area at the beginning of the video line outside the end of the horizontal occlusion interval; and inserting a horizontal post-sync signal at The edges fill the area. A method for adding a video signal composed of a video line drawing place with one of the normal horizontal and vertical synchronization symbols in the horizontal and vertical obscuration interval, comprising: replacing a selected audio frequency map with a horizontal preamble signal and / or a horizontal postamble signal Normal horizontal sync signal in the field line; modulating the horizontal / or water sync signal with a selected non-interlaced frequency position;, a vertical preamble signal is inserted into the selection line group before the normal vertical sync signal; and the post sync is selected The signal is inserted after the normal vertical synchronization signal. 8. The method according to item 7 of the patent application scope, wherein: the horizontal pre- and horizontal post-synchronization signals are inserted into the line of about 70% to 85% in the middle of the video field. Within alternate blocks; and the horizontal pre- and horizontal post-synchronization signals are inserted in lines before and after the normal vertical sync signal, respectively. 19. Method for applying for item 18 in the scope of patent application, including 2000.03.13. 023 * α = —The dual horizontal synchronization signal replaces the normal horizontal synchronization signal in the selected line group at the top and / or bottom of the video field. _ Amendment The method of item 19 of the patent scope of Xiru 6 application, in which the top and bottom, and the bar group include about 10 to 30 green bars at the top and bottom of the video field, respectively. 1. The method according to item 9 of the scope of the patent application, where the dual horizontal synchronization signal ~ 1 degree is about the horizontal synchronization signal width similar to other video lines. The method of item 17 of the U-Rong Yu-Li range, in which the non-interlaced frequency is the method of item 17 in the upper circle It patent range, in which the non-interlaced frequency is the N * ® field frequency of the rate plus or minus K * 10%, where N is a positive integer, and K is between 0 and 1 inclusive. Yubu No. ^ has a horizontal and vertical occlusion interval with normal horizontal and vertical ^^ including the frequency line diagram. The composition of the video line enhances the encryption effect in the video signal. Once the horizontal pre or horizontal post sync signal is selected, it is replaced in the field. The normal horizontal synchronization signal in the line selected by Zhongming to 换 is changed in the picture field and the water is selected. The non-interlaced frequency position is used to modulate the horizontal front and rear ten synchronization signals, where N is a positive integer; replace it with a dual horizontal synchronization signal. At the video field q% $ / $ # # the normal horizontal synchronization signal of the selected line group is selected. " and 7 or bottom 25. The method according to item 24 of the patent application scope includes inserting a vertical preamble signal and a vertical postamble number in separate line groups before and after the legitimate vertical sync signal. σ "often and vertical occlusion" 1 have normal horizontal and vertical O: \ 56 \ 56380.ptc 2000.03.13.024 401703. Case No. 87120942 Amendment B VI. Patent Application Range = Video Line Drawing Place Composition of Signal Enhances the encryption effect flaws in the video signal, including: Gives horizontal forward and horizontal backward synchronization Signal generator and generator / logic device for supplying vertical preamble and sync signal; 51 rate of fixed frequency; change horizontal level of horizontal pre- and horizontal post-synchronization signal = change of vertical pre- and vertical post-synchronization signal straightness generator device at a selected frequency ; The sister device of the response generation / logic device and the horizontal and vertical rate generator device, using a selected horizontal front and / or horizontal post synchronization signal, a normal horizontal synchronization signal within the video field selection line, Easy entry: The vertical preamble signal and / or vertical postamble signal are in individual line groups before and after the normal vertical sync signal. 27. For the device of the scope of application for patent No. 26, the generation / logic device includes: a synchronous separator device for supplying normal vertical synchronization signals and horizontal synchronization signals; responding to horizontal pre, horizontal, vertical front and vertical post synchronization signals A timing generator of the synchronization generator device; and a logic circuit for selecting a synchronization signal and / or the latter in response to the horizontal rate and vertical rate generator devices. 28. For the device in the scope of patent application No. 2 ?, wherein: the logic circuit can supply the horizontal pre- and post-horizon synchronizing signal input at a non-interlaced frequency provided by the horizontal rate generator device, about Fb170 J in the video field .85% within alternating line blocks. Look at O: \ 56 \ 56380.ptc 2000.03.13.025 401703 Second application: the frequency and profit rate of the device 30. For example, the device in the scope of patent application No. 28, where the non-interlaced frequency is equal to 10% of the field frequency plus or minus the field frequency, where the integer κ is between 0 and 1 (inclusive). 31. The device according to item 27 of the scope of patent application, wherein: the logic circuit can supply horizontal pre- and horizontal post-synchronization signals to be inputted in the selected line group of the video π top β and / or the bottom due to the response level rate generator device to define in each Two horizontal sync signals in a video line group. 3 2. If the patent application scope item 27 < device, wherein the conversion / amplifier is equipped with a β receiving video signal switching device and a response timing generator device, providing one of the synchronization signal and color pulse signal is not selected in the effective video field Video signal; and one of the amplifiers responding to the switching device: adding the selected horizontal front and rear horizontal and / or vertical front and vertical rear synchronization signals into the selected line or line group respectively. 33. For example, the device of claim 32 of the patent scope, where: The logic circuit can be provided to replace the normal vertical synchronization signal, vertical forward and vertical backward synchronization. § No. Input multiple line groups before and after the normal vertical synchronization signal. Internal 'in response to the vertical rate generator device. 34. For the device in the scope of patent application No. 27, the horizontal pre- and horizontal post-synchronization signals have a narrowing width of about 2 to 4 microseconds. 35. The device according to item 27 of the patent application, wherein during the position adjustment period Can reduce horizontal obscuration intervals, including: Amended 40 '丄 70! No. 87120942 VI. Patent application circuit device inserts horizontal preamble signal outside the beginning of the relevant horizontal masking interval to fill the area of the edge of a video line, thus increasing the horizontal preamble signal of position modulation The time gap from the horizontal post sync signal. 3 6. The device according to item 27 of the scope of patent application, wherein the horizontal blanking interval can be reduced during the position adjustment period, including: the circuit device inserts the horizontal synchronization signal after the end of the associated horizontal blanking interval in a video line The padding area thus increases the time gap between the horizontal preamble signal and the horizontal postamble signal during position modulation. O: \ 56 \ 56380.ptc I) i: ^: 2000. 03.13. 027