TH19325B - Improved harmonic splitter - Google Patents

Abstract

A digital hold circuit that combines a digital brightness signal with a DC offset to freeze the porch. The luminance signal is set to the desired IR level (IRE). The immobilizer generates a continuous reference signal that is the IRE level (IRE) of the rear porch prior to Pinned, the aggregate will generate the Break down the trailing signal that is the mean of the values. Reference signal and signal limiter constant to limit the signaling level to the range of the signal equalization level to generate a signal that Consistent with the assembly. Compare the brightness signal with the Break down the restricted signal.

Claims (6)

1. A modified harmonic splitter consisting of Digital brightness source The signal is composed of an interlacing part arranged on the back porch, the path for fixing, which is to the specified level, the method for generating the available reference signal. The value represents the IR level (IRE) of the rear porch section before the operation of the Path for such fixation The pathway for constructing the threshold level representing the numerical correlation of the number of reference values and the constants and paths for generating complementary signals by comparing the luminance signals at It is such a digital value. Signal Alignment Level 2. A splitter corresponding to claim 1, in which the fixed path combines the brightness signal with the DC offset to determine the level according to want Of the latter part of the aforementioned section 3. signal splitters in accordance with claim 1, which means for The freeze will combine the brightness signal with the DC offset to determine the specified level of As for the latter regulation And the output reference signal represents the said DC offset. 4. The splitter corresponds to claim 1, where the path for Freeze the signal will combine the brightness signal with the DC offset value to set the desired level of the As for the latter regulation And the output reference signal is the fraction of that DC offset value. 5. The splitter corresponding to claim 1 also consists of a trajectory. Way for limiting the level of breaking down the loud signal Said to be in the range of the level Dividing the signal path is that way for generating harmonious signals that are The composite signal compares the digital brightness signal. With the division level value 6. The splitter corresponding to claim 1, in which the relationship of the number of reference values And loud constants Said and is the average 7. splitter corresponding to claim 5, where the range of the splitting level is approximately -20 IRE (IRE) + - 10 IRE ( IRE) 8. A splitter corresponding to claim 5, where the range of the splitting level is approximately 25% to approximately 75% of the apex value. 9. splitters that meet claim 1, which means for The output reference signal will consist of a divider that responds to the generated DC offset. Up by the means of fixing it To determine the desired IR level (IRE) of the latter section 1 0. A modified harmonic splitter consisting of a digital brightness signal source. The signal is composed of an interlacing portion located on the back porch, a signal stabilizer that responds to the brightness signal to produce a DC offset value and to combine the said DC offset with Signal Such bright To customize As for the back porch to be level Such a stabilizer will generate a valuable output reference signal representing the subsequent IR level (IRE) of the rear porch section prior to the operation. Do the work of such a cutter A signal aggregator to create a signaling level value representing the relationship between the reference signal and the constant. Limiter to limit the slitting level to the range of the signaling level and a signal comparator to produce a composite harmonic signal by comparing the digital brightness signal with the The aforementioned Restricted Alignment Level 1 1. Improved harmonic splitter, consisting of a source of brightness signal, in which the signal includes components. That makes the interlude that is arranged on the back porch The path for fixing the back porch to a predetermined level, the path for generating an output reference signal, contributing to the value of the subsequent IRE (IRE) level of the back porch prior to operation. Of the way to freeze Such a signal A pathway for establishing a correlation scale representing the numerical correlation of such reference signal values and a constant and path for generating a complementary harmonic signal by comparing the signals. Such brightness and the level of the aforementioned alley 1 2. splitter corresponding to claim 11, which means for Freeze the signal to integrate the loudness signal. With DC offset value to set the required level of The aforementioned porch 1 3. The splitter is in accordance with claim 11, which is the path for Freeze the signal will combine the brightness signal with the DC offset value to set the desired level of the As for the aforementioned porch And the output reference signal represents that DC offset. 1 4. splitter corresponding to claim 11, which path for The freeze will combine the brightness signal with the DC offset to set the desired level of the The latter regulation and the output reference signal will be a fraction of that DC offset value 1 5. splitters corresponding to claim 14, where the fractional values are This would be approximately one-second (1/2) 1 6. splitters corresponding to claim 11, where the numerical correlation of the reference signal and that constant is the mean of 1. 7. The splitter complying with claim 11 also includes a method for limiting the level of noise isolation. Said to be in the range of levels Signal Alignment 1 8. splitter corresponding to claim 17, where the range of the signal splitting level is approximately -20 IRE (IRE) + - 10 IRE ( IRE) 1 9. splitter corresponding to claim 17, where the range of the splitting level will be from approximately 25% to a level of 75% of the peak end value of the 2 0. splitters that meet claim 1, which means for Generate a reference signal.The output is composed of a divider that responds to the DC offset generated by the fixation path to set the desired level of the porch 2. 1. Enhanced interference splitter consisting of the source of the video signal from which the video signal is Including components that make The trajectory is arranged on the back porch section, the path for holding the signal of the back porch to the specified level, the path for generating the output reference signal contributing to the value of the IRE level ( IRE) following the back porch section before The work of the path for the immobilization Such a signal A pathway for establishing a correlation scale representing the numerical correlation of such reference signal values and a constant and path for generating a complementary harmonic signal by comparing the signals. Picture and scale That divides the said alley 2 2. splitters aligned according to claim 21, which means for Freeze the signal will combine it with the DC offset value to determine the level. As required of the aforementioned balcony part 2 3. Dissector corresponding to claim 22 which the reference signal The above output will represent that DC offset 2. 4. Dissector corresponding to claim 21, where the numerical correlation of the reference signal value and the constant That's the mean of 2. 5. The splitter complying with claim 21 also includes a method for limiting the level of noise isolation. Said to be in the range of levels Way Such as for generating harmonious signals that are The accompanying signal compares the video signal with the alley level value. Such a signal As limited to 2 6. Diverter corresponding to claim 25, which means for Generate such an output reference signal, a path for establishing such a threshold level, a path for generating such a composite harmonic signal, and such limiting pathways are collected within the loop. Total