-
1.发明公开A process of linearizing non-linear analog-to-digital conversion the process and circuit for performing 失效线性化非线性模拟数字转换的过程执行过程和电路
公开(公告)号：EP0514587A3
公开(公告)日：1993-09-22
申请号：EP91119382.9
申请日：1991-11-13
IPC分类号： H03M1/06
CPC分类号： H03M1/1042 , H03M1/12
摘要： A circuit for linearizing analog-to-digital output is shown in Figure 2, with an analog signal V i transmitted by input circuit 10 is applied to an input port of an analog-to-digital converter 12 controlled by a sampling signal V s , to provide digital data V d on an "N" bit data bus 14. An analog-to-digital linearizing memory 16 storing a look-up table of digital values, is coupled to bus 14 to receive the digital data V d , and to respond to the digital data V d by providing true linear digital values from the look-up table to digital data processing system DSP 20 via an "N" bit data bus 18. A microprocessor 22 is temporarily coupled between the output port of converter 12 and the input port of memory 16 via bus 14, to serve as a switch between bus 14 and a programming memory 24 containing a table of true linear digital values V t . A known test signal is applied to input circuit 10, and true linear digital values V t stored in programming memory 24, are then read into linearizing memory 16 to provide an accurate and reliable relation to a characteristic such as the amplitude of each step of the known test signal over the entire range of the known test signal.
-
公开(公告)号：EP0696143B1
公开(公告)日：2002-01-09
申请号：EP95116330.2
申请日：1991-08-09
发明人： Strolle, Christopher H. , Patel, Chandrakant B. , Wedam, Werner F. , Ko, Jung-Wan , Schnitzler, Raymond , Yun, Jong-Kyung
IPC分类号： H04N9/79
CPC分类号： H04N9/835 , H04N9/7976 , H04N9/80 , H04N9/8205 , H04N9/831 , H04N9/898
-
3.发明公开Color-under chroma channel encoded with auxiliary signals 失效Color-Under-Chrominanzkanal mitzusätzlichenSignalen。
公开(公告)号：EP0543038A1
公开(公告)日：1993-05-26
申请号：EP91119775.4
申请日：1991-11-19
CPC分类号： H04N7/081 , H04N9/8205 , H04N9/84
摘要： Apparatus and a method is disclosed for encoding, transmitting and decoding of one or two auxiliary or control signals on a phase alternating carrier. The phase alternating carrier is generated such that, in a given frame, it is in-phase on one scan line, and out-of-phase on the next scan line relative to the conventional chroma carrier. The (I and Q) chroma information is modulated on the chroma carrier in a conventional form to generate a chroma signal. The phase alternating carrier is modulated with one or two auxiliary signals in a similar fashion. The encoded phase alternating carrier is then added to the modulated chroma carrier (chroma signal), and processed in the chroma channel for recording on a magnetic tape. A decoder or playback apparatus processes the chroma channel to decode the two modulated carriers. The modulated chroma carrier (chroma signal) is decoded in a conventional demodulator to recover the chroma (I and Q) information. The encoded phase alternating carrier is decoded to recover the original auxiliary signals. The auxiliary signals may be digital audio signals or motion signals indicative of motion in the scenes.
摘要翻译： 公开了用于在相位交替载波上编码，发送和解码一个或两个辅助或控制信号的装置和方法。 产生相位交变载波，使得在给定帧中，它在一条扫描线上同相，而在相对于传统色度载波的下一扫描线上是异相的。 （I和Q）色度信息以常规形式在色度载体上调制以产生色度信号。 以相似的方式用一个或两个辅助信号调制相位交变载波。 然后将经编码的相位交替载波加到调制的色度载波（色度信号）上，并在色度通道中进行处理以在磁带上进行记录。 解码器或重放装置处理色度通道以对两个调制载波进行解码。 调制色度载波（色度信号）在常规解调器中进行解码，以恢复色度（I和Q）信息。 编码相位交替载波被解码以恢复原始辅助信号。 辅助信号可以是表示场景中的运动的数字音频信号或运动信号。
-
4.发明公开
公开(公告)号：EP0696143A1
公开(公告)日：1996-02-07
申请号：EP95116330.2
申请日：1991-08-09
发明人： Strolle, Christopher H. , Patel, Chandrakant B. , Wedam, Werner F. , Ko, Jung-Wan , Schnitzler, Raymond , Yun, Jong-Kyung
IPC分类号： H04N9/79
CPC分类号： H04N9/835 , H04N9/7976 , H04N9/80 , H04N9/8205 , H04N9/831 , H04N9/898
摘要： An improved video signal recording system for recording a full bandwidth video signal on a limited bandwidth medium includes an encoder 10, coupled to an input terminal 5, for adaptively processing a composite video signal in response to a motion representative signal, and producing two signals; a luminance signal L f , having attenuated high frequencies subsampled so as to be folded into a spectral hole in the low frequencies, and being bandwidth limited to the limited bandwidth of the recording medium, and a combined signal C+M r including a chrominance and a motion component. Luminance signal recording circuitry 20 records the folded luminance signal on the medium, and chrominance signal recording circuitry records the combined chrominance and motion signal on the medium. An improved video signal playback system for reproducing such a prerecorded video signal is also disclosed. The playback system consists of a luminance signal playback circuit 60 for retrieving the prerecorded luminance signal L pb from the medium, and a chrominance signal playback circuit 80 for retrieving the prerecorded combined chrominance and motion signal C+M from the medium. A decoder 70 extracts the motion signal and the chrominance signal from the combined chrominance and motion signal and an unfolding circuit extracts the luminance high frequencies from the prerecorded folded luminance signal and adaptively regenerates the full bandwidth luminance signal in response to the motion signal. This regenerated full bandwidth luminance signal is combined with the chrominance signal to reproduce the originally recorded composite video signal. A recording medium previously recorded by such a recording system is capable of being played back on a standard playback system without objectionable artifacts in the reproduced image.
摘要翻译： 用于在有限带宽介质上记录全带宽视频信号的改进的视频信号记录系统包括耦合到输入端5的编码器10，用于响应运动代表信号自适应地处理复合视频信号，并产生两个信号; 具有被衰减的高频的亮度信号Lf被采样以被折叠成低频中的频谱孔，并且被带宽限制到记录介质的有限带宽，并且包括色度和运动的组合信号C + 零件。 亮度信号记录电路20将折叠的亮度信号记录在介质上，色度信号记录电路在介质上记录组合的色度和运动信号。 还公开了一种用于再现这种预先记录的视频信号的改进的视频信号播放系统。 回放系统包括用于从介质中检索预先记录的亮度信号Lpb的亮度信号重放电路60和用于从介质中检索预先记录的组合色度和运动信号C + M的色度信号重放电路80。 解码器70从组合的色度和运动信号中提取运动信号和色度信号，展开电路从预先记录的折叠亮度信号中提取亮度高频，并根据运动信号自适应地再生全带宽亮度信号。 该再生的全带宽亮度信号与色度信号组合以再现原始记录的复合视频信号。 由这样的记录系统预先记录的记录介质能够在标准的回放系统上被再现，而不会在再现的图像中产生不良的伪影。
-
5.发明公开Video signal recording and/or reproducing systems 失效Aufzeichnungs- und Wiedergabesystemfürein Videosignal。
公开(公告)号：EP0471517A2
公开(公告)日：1992-02-19
申请号：EP91307342.5
申请日：1991-08-09
发明人： Strolle, Christopher H. , Patel, Chandrakant B. , Wedam, Werner F. , Ko, Jung-Wan , Schnitzler, Raymond , Yun, Jong-Kyung
IPC分类号： H04N9/79
CPC分类号： H04N9/835 , H04N9/7976 , H04N9/80 , H04N9/8205 , H04N9/831 , H04N9/898
摘要： An improved video signal recording system for recording a full bandwidth video signal on a limited bandwidth medium includes an encoder 10, coupled to an input terminal 5, for adaptively processing a composite video signal in response to a motion representative signal, and producing two signals; a luminance signal Lr, having attenuated high frequencies subsampled so as to be folded into a spectral hole in the low frequencies, and being bandwidth limited to the limited bandwidth of the recording medium, and a combined signal C+Mr including a chrominance and a motion component. Luminance signal recording circuitry 20 records the folded luminance signal on the medium, and chrominance signal recording circuitry 30 records the combined chrominance and motion signal on the medium. An improved video signal playback system for reproducing such a prerecorded video signal is also disclosed. The playback system consists of a luminance signal playback circuit 60 for retrieving the prerecorded luminance signal Lpb from the medium, and a chrominance signal playback circuit 80 for retrieving the prerecorded combined chrominance and motion signal C+M from the medium. A decoder 70 extracts the motion signal and the chrominance signal from the combined chrominance and motion signal and an unfolding circuit extracts the luminance high frequencies from the prerecorded folded luminance signal and adaptively regenerates the full bandwidth luminance signal in response to the motion signal. This regenerated full bandwidth luminance signal is combined with the chrominance signal to reproduce the originally recorded composite video signal. A recording medium previously recorded by such a recording system is capable of being played back on a standard playback system without objectionable artifacts in the reproduced image.
摘要翻译： 用于在有限带宽介质上记录全带宽视频信号的改进的视频信号记录系统包括耦合到输入端5的编码器10，用于响应运动代表信号自适应地处理复合视频信号，并产生两个信号; 具有被衰减的高频的亮度信号Lr被采样以被折叠成低频中的频谱孔，并且被带宽限制到记录介质的有限带宽，以及包括色度和运动的组合信号C + 零件。 亮度信号记录电路20将折叠的亮度信号记录在介质上，色度信号记录电路在介质上记录组合的色度和运动信号。 还公开了一种用于再现这种预先记录的视频信号的改进的视频信号播放系统。 回放系统包括用于从介质中检索预先记录的亮度信号Lpb的亮度信号重放电路60和用于从介质中检索预先记录的组合色度和运动信号C + M的色度信号重放电路80。 解码器70从组合的色度和运动信号中提取运动信号和色度信号，展开电路从预先记录的折叠亮度信号中提取亮度高频，并根据运动信号自适应地再生全带宽亮度信号。 该再生的全带宽亮度信号与色度信号组合以再现原始记录的复合视频信号。 由这样的记录系统预先记录的记录介质能够在标准的回放系统上被再现，而不会在再现的图像中产生不良的伪影。
-
公开(公告)号：EP0471517B1
公开(公告)日：1996-11-20
申请号：EP91307342.5
申请日：1991-08-09
发明人： Strolle, Christopher H. , Patel, Chandrakant B. , Wedam, Werner F. , Ko, Jung-Wan , Schnitzler, Raymond , Yun, Jong-Kyung
IPC分类号： H04N9/79
CPC分类号： H04N9/835 , H04N9/7976 , H04N9/80 , H04N9/8205 , H04N9/831 , H04N9/898
-
公开(公告)号：EP0471517A3
公开(公告)日：1993-03-17
申请号：EP91307342.5
申请日：1991-08-09
发明人： Strolle, Christopher H. , Patel, Chandrakant B. , Wedam, Werner F. , Ko, Jung-Wan , Schnitzler, Raymond , Yun, Jong-Kyung
IPC分类号： H04N9/79
CPC分类号： H04N9/835 , H04N9/7976 , H04N9/80 , H04N9/8205 , H04N9/831 , H04N9/898
摘要： An improved video signal recording system for recording a full bandwidth video signal on a limited bandwidth medium includes an encoder 10, coupled to an input terminal 5, for adaptively processing a composite video signal in response to a motion representative signal, and producing two signals; a luminance signal Lr, having attenuated high frequencies subsampled so as to be folded into a spectral hole in the low frequencies, and being bandwidth limited to the limited bandwidth of the recording medium, and a combined signal C+Mr including a chrominance and a motion component. Luminance signal recording circuitry 20 records the folded luminance signal on the medium, and chrominance signal recording circuitry 30 records the combined chrominance and motion signal on the medium. An improved video signal playback system for reproducing such a prerecorded video signal is also disclosed. The playback system consists of a luminance signal playback circuit 60 for retrieving the prerecorded luminance signal Lpb from the medium, and a chrominance signal playback circuit 80 for retrieving the prerecorded combined chrominance and motion signal C+M from the medium. A decoder 70 extracts the motion signal and the chrominance signal from the combined chrominance and motion signal and an unfolding circuit extracts the luminance high frequencies from the prerecorded folded luminance signal and adaptively regenerates the full bandwidth luminance signal in response to the motion signal. This regenerated full bandwidth luminance signal is combined with the chrominance signal to reproduce the originally recorded composite video signal. A recording medium previously recorded by such a recording system is capable of being played back on a standard playback system without objectionable artifacts in the reproduced image.
-
8.发明授权A process of linearizing non-linear analog-to-digital conversion the process and circuit for performing 失效一种用于线性化非线性模 - 数转换电路和用于执行所述方法的方法
公开(公告)号：EP0514587B1
公开(公告)日：1999-02-03
申请号：EP91119382.9
申请日：1991-11-13
IPC分类号： H03M1/06
CPC分类号： H03M1/1042 , H03M1/12
-
9.发明公开A process of linearizing non-linear analog-to-digital conversion the process and circuit for performing 失效过程用于线性化非线性模 - 数转换电路和用于执行该过程。
公开(公告)号：EP0514587A2
公开(公告)日：1992-11-25
申请号：EP91119382.9
申请日：1991-11-13
IPC分类号： H03M1/06
CPC分类号： H03M1/1042 , H03M1/12
摘要： A circuit for linearizing analog-to-digital output is shown in Figure 2, with an analog signal V i transmitted by input circuit 10 is applied to an input port of an analog-to-digital converter 12 controlled by a sampling signal V s , to provide digital data V d on an "N" bit data bus 14. An analog-to-digital linearizing memory 16 storing a look-up table of digital values, is coupled to bus 14 to receive the digital data V d , and to respond to the digital data V d by providing true linear digital values from the look-up table to digital data processing system DSP 20 via an "N" bit data bus 18. A microprocessor 22 is temporarily coupled between the output port of converter 12 and the input port of memory 16 via bus 14, to serve as a switch between bus 14 and a programming memory 24 containing a table of true linear digital values V t . A known test signal is applied to input circuit 10, and true linear digital values V t stored in programming memory 24, are then read into linearizing memory 16 to provide an accurate and reliable relation to a characteristic such as the amplitude of each step of the known test signal over the entire range of the known test signal.
摘要翻译： 一种用于线性化模拟到数字输出电路在图2中，在模拟信号Vi反通过输入电路10 mitted所示，用在由一个取样信号Vs，以提供控制的模拟 - 数字转换器12的输入端口被施加到 上的“N”比特数据总线14日的数字数据Vd到模拟到数字线性化存储器16中存储的数字值的查找表，被耦合到总线14以接收数字数据Vd，并且向数字响应 数据Vd通过经由“N”比特数据总线18的微处理器22被暂时连接转换器12的输出端口和存储器的输入端口之间从查找表以数字数据处理系统20的DSP可提供真正的线性数字值 16经由总线14，以用作总线14和一个编程存储器24包含真正的线性数字值Vt值的表之间的开关。 一种已知的测试信号被施加到存储在编程存储器输入电路10，和真正的线性数字值Vt的24然后被读入线性化存储器16，以提供准确和可靠的关系的特性：如已知的每个步骤的振幅 测试信号与已知的测试信号的整个范围内。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.012 秒)
