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1. 发明授权

US5068725A Band compressing/restoring apparatus 失效
标题翻译：带压缩/恢复装置
公开(公告)号：US5068725A
公开(公告)日：1991-11-26
申请号：US470219
申请日：1990-01-25
申请人： Yoshihiko Ogawa , Seijiro Yasuki , Kiyoyuki Kawai
发明人： Yoshihiko Ogawa , Seijiro Yasuki , Kiyoyuki Kawai
IPC分类号： H04N7/015 , H04N7/08 , H04N7/081 , H04N11/24
CPC分类号： H04N11/008 , H04N7/08
摘要： In a band compression apparatus, an input signal is separated into high- and low-frequency components H and L by an LPF and an adder. The component H is in-frame-averaged by an in-frame average circuit. The component L is output as a signal S.sub.3 having a large energy via a field delay circuit and a switch circuit. An in-frame difference of the low-frequency component L is obtained by a field delay circuit and an adder. This in-frame differential signal S.sub.2 is added to an in-frame average signal S.sub.1 by an adder. A signal S.sub.4 having a small energy is obtained by this addition. In a band restoration apparatus the signals S.sub.3 and S.sub.4 are separated into signals of two fields by an adder and a switch circuit. A signal S.sub.5 consisting of the components L and H is obtained in one field. A signal S.sub.2 consisting of only the component L is obtained in the other field. The signal S.sub.5 is output via a switch circuit. The signal S.sub.2 is added to the signal S.sub.5 in an immediately preceding field by an adder. A signal S.sub.6 consisting of the components L and H is obtained by this addition. The signal S.sub.6 is output via the switch circuit at a timing delayed by one field with respect to the signal S.sub.5.
摘要翻译：在频带压缩装置中，通过LPF和加法器将输入信号分离成高频和低频分量H和L. 分量H由帧内平均电路进行帧内平均。分量L经由场延迟电路和开关电路输出为具有大能量的信号S3。低频分量L的帧内差由场延迟电路和加法器得到。该帧内差分信号S2通过加法器加到帧内平均信号S1中。通过该添加获得具有小能量的信号S4。在频带恢复装置中，信号S3和S4通过加法器和开关电路分成两个场的信号。在一个场中获得由分量L和H组成的信号S5。在另一场中获得仅由分量L构成的信号S2。信号S5经由开关电路输出。信号S2通过加法器在紧前面的场中加到信号S5。通过该添加获得由分量L和H组成的信号S6。信号S6经由开关电路以相对于信号S5延迟一个场的定时输出。

2. 发明授权

US5179443A Multiplexed signal transmitting and receiving apparatus 失效
标题翻译：多路复用信号发射和接收设备
公开(公告)号：US5179443A
公开(公告)日：1993-01-12
申请号：US822880
申请日：1992-01-21
申请人： Yoshio Sugimori , Yoshihide Kimata , Seijiro Yasuki , Yoshihiko Ogawa , Kiyoyuki Kawai
发明人： Yoshio Sugimori , Yoshihide Kimata , Seijiro Yasuki , Yoshihiko Ogawa , Kiyoyuki Kawai
IPC分类号： H04N7/00 , H04N7/015 , H04N7/084 , H04N11/24
CPC分类号： H04N11/006 , H04N7/007 , H04N7/0152 , H04N7/084 , Y10S348/913
摘要： A wide aspect signal is band-width limited in the vertical spatial frequency by a V-LPF. The wide aspect signal is band-width limited along the temporal spatial frequency and in the vertical and horizontal spatial frequency by a 1/60-sec delay unit, an adder, 1 1/60-sec delay unit, a selector, a V-LPF, and an H-LPF. A motion image signal can be obtained by an adder. A still image signal can be obtained by the selector. The motion and still image signals are mixed by a mixer in accordance with an image motion amount. An output from the substractor is processed by a vertical shifter, an H-LPF, and a 6.fwdarw.5 converter to provide a still image compensation signal Vh. A signal from the V-LPF is compressed in the vertical direction by a 6.fwdarw.5 converter so as to be a center portion signal which can be displayed as an image with the receiver of the existing television system, and supplied to a selector. An output signal from the 6.fwdarw.5 converter is processed by an LD generator to generate a motion image compensation signal (LD signal). The LD and Vh signals are selectively output from a mixer in accordance with the image motion. A compensation signal output from the mixer is processed by an H-LPF, a 1/5-time compressor, and a rearranging unit, so that it can be multiplexed on upper and lower black bar portions formed on upper and lower portions of the center panel, and supplied to the selector.

3. 发明授权

US5182644A Multiplexed signal receiving apparatus 失效
标题翻译：多路复用信号接收装置
公开(公告)号：US5182644A
公开(公告)日：1993-01-26
申请号：US823114
申请日：1992-01-21
申请人： Yoshihide Kimata , Seijiro Yasuki , Yoshihiko Ogawa , Kiyoyuki Kawai
发明人： Yoshihide Kimata , Seijiro Yasuki , Yoshihiko Ogawa , Kiyoyuki Kawai
IPC分类号： H04N5/46 , H04N7/01 , H04N7/015 , H04N11/14
CPC分类号： H04N7/0122 , H04N7/007 , H04N7/015 , H04N19/30 , Y10S348/904
摘要： A first image signal for a screen wider than that obtained by a TV signal of an existing television system is converted to a multiplexed signal that can be reproduced with a receiver of the existing television system, and input to a selector. The selector divides the input signal into a center portion signal and upper and lower black bar portions signals of the screen. The multiplexed signal has a center portion signal as an image display portion and upper and lower black bar portion signals as non-image portions. A difference signal (first LD signal) is multiplexed on the upper and lower black bar portion signals. A rearranging unit, a 5-time expander, a double speed converter, a delay unit, and a selector reproduce the first LD signal from the upper and lower black bar portion signals. A delay unit and a double speed converter double-speed convert the center portion signal. A line interpolator and a selector generate a progressive scanning signal. A 5.fwdarw.6 converter expands the progressive scanning signal in the vertical direction. The first LD signal is added to the interpolated scanning line of the first field by an adder. An LD generator generates a second LD signal from the compensated progressive scanning signal in the same manner as on the transmission side. A line interpolator and a selector also generate a progressive scanning signal. The second LD signal is added to the interpolated scanning line of the second field by an adder.

4. 发明授权

US5177597A Television signal multiplexing and demultiplexing system 失效
标题翻译：电视信号多路复用和解复用系统
公开(公告)号：US5177597A
公开(公告)日：1993-01-05
申请号：US623026
申请日：1990-12-06
申请人： Yoshihiko Ogawa , Seijiro Yasuki , Kiyoyuki Kawai
发明人： Yoshihiko Ogawa , Seijiro Yasuki , Kiyoyuki Kawai
IPC分类号： H04N7/015 , H04N7/08 , H04N7/081 , H04N11/24
CPC分类号： H04N7/015 , H04N11/006 , H04N19/60 , H04N19/30
摘要： A television signal multiplexing and demultiplexing system includes a signal separation circuit for separating from a composite color television signal a plurality of first television signals serving as additional information for making the quality of a television picture higher and a second television signal. A matrix operation circuit performs a vertical matrix operation on the first television signals so as to dispose each of the first television signals in a different vertical band, thereby producing operation outputs. A delay circuit delays the operation outputs by different amounts of delay to produce delayed outputs. A multiplexing circuit multiplexes the delayed outputs on different horizontal scanning lines of the second television signal to produce a multiplexed output. A demultiplexing circuit demultiplexes the multiplexed output into the operation outputs and the second television signal. A recovering circuit recovers the first television signals by performing a matrix operation which is the inverse of the matrix operation on the separated operation outputs to recover the first television signal.

5. 发明授权

US5153845A Time base conversion circuit 失效
标题翻译：时基转换电路
公开(公告)号：US5153845A
公开(公告)日：1992-10-06
申请号：US612973
申请日：1990-11-15
申请人： Yoshihiko Ogawa , Seijiro Yasuki , Kiyoyuki Kawai
发明人： Yoshihiko Ogawa , Seijiro Yasuki , Kiyoyuki Kawai
IPC分类号： H03H17/00 , H03H17/06
CPC分类号： H03H17/0685
摘要： A time base conversion circuit including a data interpolating circuit for converting a digital signal of sampling frequency fs into a digital signal having M (M is a positive integer) samples per N/fs (N is another positive integer) cycle without loosing data during the interpolating process, a register for holding M data which are output from the data interpolating circuit at the cycle of N/fs, M memories for storing M data which are held by the register at the cycle of N/fs, and controller for controlling data write/read operations of the memories at the cycle of M/fs and a selecter for selecting M data read from the memories by the controller successivly at the cycle of 1/fs.

6. 发明授权

US5161003A Compatible television system with companding auxiliary signal 失效
标题翻译：具有辅助辅助信号的兼容电视系统
公开(公告)号：US5161003A
公开(公告)日：1992-11-03
申请号：US667297
申请日：1991-03-11
申请人： Seijiro Yasuki , Kiyoyuki Kawai , Noboru Taga
发明人： Seijiro Yasuki , Kiyoyuki Kawai , Noboru Taga
IPC分类号： H04N7/015 , H04N7/08 , H04N7/081 , H04N11/24
CPC分类号： H04N11/008 , H04N7/012 , H04N7/015 , Y10S348/904
摘要： A compatible television signal encoder for encoding a television signal having a first signal and a second signal. The decoder includes a divider for dividing the wide aspect television signal into a main signal having the first signal and low-frequency components of the second signal multiplexed in the horizontal overscan regions of the first signal and an auxilary signal, an interpolator for producing an interpolating scanning field signal using a first scanning field signal of the main signal output from the divider, a field switch for replacing a second scanning field signal of the main signal with the interpolating scanning field signal output from the interpolator and an adder for adding the auxiliary signal from the divider to the signal output from the field switch.

7. 发明授权

US5157490A Television signal scanning line converting apparatus 失效
标题翻译：电视信号扫描线转换装置
公开(公告)号：US5157490A
公开(公告)日：1992-10-20
申请号：US668896
申请日：1991-03-13
申请人： Kiyoyuki Kawai , Seijiro Yasuki
发明人： Kiyoyuki Kawai , Seijiro Yasuki
IPC分类号： H04N7/01 , H04N7/12
CPC分类号： H04N7/122
摘要： A television signal scanning line converting apparatus, where an intra-frame average signal and inter-frame average signal are obtained by processing a progressive scanning signal in a unit of two frames with a delaying circuit and adders. A lowpass filter limits the horizontal and vertical bands of an intra-frame difference signal to reduce the field amount. If the input progressive scanning signal is a moving picture, the low vertical range of the intra-frame difference signal will be multiplexed to the high vertical range part of the intra-frame average signal and the high vertical range of the intra-frame difference signal will be transmitted separately so that the resolution of the moving picture will improve and no deterioration, caused by the turning distortion, will be produced.

8. 发明授权

US4870482A Motion-adaptive type signal separator with data companding function 失效
标题翻译：运动自适应型信号分离器，具有数据压扩功能
公开(公告)号：US4870482A
公开(公告)日：1989-09-26
申请号：US171735
申请日：1988-03-21
申请人： Seijiro Yasuki , Kiyoyuki Kawai
发明人： Seijiro Yasuki , Kiyoyuki Kawai
IPC分类号： H04N9/78
CPC分类号： H04N9/78
摘要： A data bandwidth compressor receives an input digital video signal which includes first and second signal components, compresses the data bandwidth of the signal, and outputs a resultant signal. A line difference detector includes a line memory for storing the output signal from the data bandwidth compressor and detects a difference signal between adjacent lines. A frame difference detector includes a frame memory for storing the output signal from the data bandwidth compressor and detects a difference signal between adjacent frames. A motion detector receives the output signal from the data bandwidth compressor and detects an image motion signal included in the output signal. A first separator separates and outputs the first signal component by changing the mixing ratio of the line and frame difference signals, in accordance with the image motion signal. A data interpolator receives the first signal component from the first separator and outputs the first signal component, which is interpolated to obtain an original data bandwidth. A second separator receives the input digital video signal and the first signal component from the data interpolator, and separates and outputs the second signal component.
摘要翻译：数据带宽压缩器接收包括第一和第二信号分量的输入数字视频信号，压缩信号的数据带宽，并输出结果信号。线差检测器包括用于存储来自数据带宽压缩器的输出信号的行存储器，并检测相邻行之间的差分信号。帧差检测器包括：帧存储器，用于存储来自数据带宽压缩器的输出信号，并检测相邻帧之间的差分信号。运动检测器接收来自数据带宽压缩器的输出信号，并检测包括在输出信号中的图像运动信号。第一分离器根据图像运动信号，通过改变线和帧差分信号的混合比来分离并输出第一信号分量。数据插值器从第一分离器接收第一信号分量，并输出插值的第一信号分量以获得原始数据带宽。第二分离器从数据插值器接收输入数字视频信号和第一信号分量，并分离并输出第二信号分量。

9. 发明授权

US5019902A Band width compressing/reproducing system with fields for different frequency components 失效
标题翻译：带宽压缩/再现系统，具有不同频率分量的场
公开(公告)号：US5019902A
公开(公告)日：1991-05-28
申请号：US388055
申请日：1989-08-01
申请人： Seijiro Yasuki , Kiyoyuki Kawai
发明人： Seijiro Yasuki , Kiyoyuki Kawai
IPC分类号： H04N7/12 , H04N7/00 , H04N7/015 , H04N11/24 , H04N19/423 , H04N19/70 , H04N19/80 , H04N19/85
CPC分类号： H04N11/006 , H04N19/63 , H04N7/007 , H04N7/015
摘要： At a time of band width compression, an input signal is separated into a horizontal high frequency component H and a horizontal low frequency component L by means of an LPF and an adder. The component H is subjected to in-frame averaging by an in-frame average circuit. The component L is delayed by one field by a field delay circuit which contains a component to provide smooth motion. The delayed output is added to the in-frame average output in one field by an adder. In the other field, a difference in the horizontal low frequency component between fields is attained by a field delay circuit and an adder. Accordingly, in one field a signal containing the component L and the component H subjected to in-frame averaging is attained. In the other field, a signal containing only the component L having gone through a process of obtaining the field-to-field difference is attained. At a time of band width reproduction, an input signal is output as it is in one field through two switch circuits. In the other field, the input sighnal is added to an input signal in the former field by a field delay circuit and an adder. The added output is transferred through a switch.
摘要翻译：在带宽压缩时，通过LPF和加法器将输入信号分离为水平高频分量H和水平低频分量L. 分量H通过帧内平均电路进行帧内平均。分量L被场延迟电路延迟一个场，该场延迟电路包含提供平滑运动的分量。延迟输出由加法器加到一个场中的帧内平均输出。在另一个场中，通过场延迟电路和加法器来获得场之间的水平低频分量的差异。因此，在一个场中，获得了包含分量L和经过帧内平均的分量H的信号。在另一个场中，仅获得了经过获得场到场差的处理的分量L的信号。在带宽再现时，通过两个开关电路将输入信号原样输出到一个场中。在另一个场中，通过场延迟电路和加法器将输入信号加到前一场的输入信号中。添加的输出通过交换机传输。

10. 发明授权

US5204745A High-definition television signal processing system for transmitting and receiving a television signal in a manner compatible with the present system 失效
标题翻译：高分辨率电视信号处理系统，用于传输和接收与现有系统兼容的电视电视信号
公开(公告)号：US5204745A
公开(公告)日：1993-04-20
申请号：US741245
申请日：1991-07-19
申请人： Kiyoyuki Kawai , Seijiro Yasuki
发明人： Kiyoyuki Kawai , Seijiro Yasuki
IPC分类号： H04N7/015 , H04N5/40 , H04N5/455 , H04N7/00 , H04N7/01 , H04N11/20 , H04N11/24
CPC分类号： H04N11/006 , H04N11/008 , H04N5/40 , H04N5/455 , H04N7/007
摘要： On the transmission side, a delay unit, an adder, and a subtracter obtain an interframe sum output by calculating, in units of two frames, an interframe average sum of progressive scanning signals each having N scanning lines per frame, and an interframe difference output by calculating, in units of two frames, an interframe average difference related to moving image data. The interframe sum output is band-limited to a band which can be transmitted with a conventional scheme by switching, time expansion, vertical filtering, and first scanning line count conversion, and converted into M scanning lines per frame. The interframe difference output is band-limited to a band effective for resolution improvement of a moving image in a receiver of a conventional scheme by switching, time expansion, vertical filtering, horizontal filtering, and second scanning line count conversion, and converted into M scanning lines per frame. Outputs obtained by first and second scanning line count conversions are input to a sum arithmetic means to generate a first frame signal, and input to a difference arithmetic means to generate a second frame signal. The first and second frame signals are transmitted as an interlace scanning signal of M scanning lines per frame for a central portion thereof.

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