-
公开(公告)号：US5699471A
公开(公告)日：1997-12-16
申请号：US192290
申请日：1994-02-04
申请人： Takashi Furuhata , Manabu Katsuki , Hiroki Mizosoe
发明人： Takashi Furuhata , Manabu Katsuki , Hiroki Mizosoe
IPC分类号： G11B5/008 , H04N5/7826 , H04N9/79 , H04N9/81
CPC分类号： G11B5/00878 , H04N5/78266 , H04N9/7925 , H04N9/81
摘要： An apparatus for recording and reproducing a video signal records all of effective line information required for transmission of respective picture images and voice information together with identification information in mutually resembling track patterns by setting the number of sampled picture elements per line (or block) and the number of lines (or the number of blocks) to be recorded in each track in accordance with a band ratio m of a first record video signal to a second record video signal. With this, it is possible to record and reproduce a plural types of video signals having mutually different bands and also different number of effective scanning lines and signal formats by one apparatus efficiently while checking enlargement of a circuit scale and with almost uniform picture quality performance in accordance with the difference of the bands.
摘要翻译： 用于记录和再现视频信号的装置通过设置每行（或块）的采样图像元素的数量，将相应图像和语音信息所需的有效行信息与识别信息一起记录在相似的轨迹图案中， 根据第一记录视频信号与第二记录视频信号的频带比m记录在每个磁道中的行数（或块数）。 由此，可以在检查电路规模的放大和几乎均匀的图像质量性能的同时，通过一个装置有效地记录和再现具有相互不同的频带和不同数量的有效扫描线和信号格式的多种类型的视频信号 根据乐队的差异。
-
2.发明授权High-definition imaging device, and apparatuses for recording and playing back high-definition picture information 失效高分辨率成像装置以及用于记录和再现高分辨率图像信息的装置
公开(公告)号：US5374955A
公开(公告)日：1994-12-20
申请号：US160806
申请日：1993-12-03
申请人： Takashi Furuhata , Nobuo Azuma , Hiroki Mizosoe , Manabu Katsuki
发明人： Takashi Furuhata , Nobuo Azuma , Hiroki Mizosoe , Manabu Katsuki
CPC分类号： H04N9/045 , Y10S358/906
摘要： Solid-state imaging elements each having a smaller number of pixels are employed to realize an imaging device for taking a high-definition picture which is four or more times larger in the number of pixels than each of the solid-state imaging elements, and also an apparatus for recording/playing back (or transmitting) the high-definition picture. A two-dimensional space which includes, at least, nH spatial sampling points in a horizontal direction and nV spatial sampling points (nV lines) in a vertical direction, totaling (nH.times.nV) spatial sampling points, is imaged under the condition that light is sensed at, at most, 1/2 of the sampling points of the two-dimensional space. Thus, the imaging device delivers as its output a video signal containing effective pixel information items which correspond to the light-sensed sampling points and which are, at most, (nH.times.nV)/2 in terms of the number of pixels.
摘要翻译： 采用具有较少像素数的固态成像元件来实现用于拍摄高于每个固态成像元件的像素数量的四倍或更多倍的高分辨率图像的成像装置，并且还 用于记录/播放（或发送）高分辨率图像的装置。 至少在水平方向上包括nH个空间采样点和垂直方向上的nV空间采样点（nV线）的二维空间（nHxnV）空间采样点在感测光的条件下被成像 最多在二维空间的采样点的1/2。 因此，成像装置输出视频信号，该视频信号包含对应于光感测采样点的有效像素信息项，并且对于像素数目至多为（nH×nV）/ 2。
-
公开(公告)号：US4967161A
公开(公告)日：1990-10-30
申请号：US393958
申请日：1989-08-15
摘要： A signal processing method or apparatus in which an input signal is converted to a signal of a predetermined frequency characteristic and the resulting signal is reconverted to a signal of the original frequency characteristic, comprising: a first signal processing section for processing the input signal and having the first transfer function exp(-msT)/(1+K.multidot.cos(.omega.T) or a function approximating to the former function; a second signal processing section cascaded with the first signal processing section for processing the input signal and having a second transfer function of (1+K.multidot.cos(.omega.T).multidot.exp(-sT)), the first signal processing section having a linear phase characteristic and including an impedance circuit or an admittance circuit, each circuit including a ladder network of a plurality of inductance elements and capacitance elements.
摘要翻译： 一种信号处理方法或装置，其中输入信号被转换成预定频率特性的信号，并且所得信号被重新转换为原始频率特性的信号，包括：第一信号处理部分，用于处理输入信号并具有 第一传递函数exp（-msT）/（1 + Kxcos（ω-T））或接近前一函数的函数;与第一信号处理部分级联的第二信号处理部分，用于处理输入信号并具有第二传递函数 （1 + Kxcos（ω-T）×exp（-ST）），第一信号处理部分具有线性相位特性并包括阻抗电路或导纳电路，每个电路包括多个电感元件的梯形网络和电容 元素。
-
4.发明授权Tracking control method and device in rotary head type magnetic recording and reproducing apparatus 失效旋转磁头式磁记录再生装置的跟踪控制方法及装置
公开(公告)号：US4954902A
公开(公告)日：1990-09-04
申请号：US336620
申请日：1989-04-10
申请人： Takashi Furuhata , Kenji Satoh
发明人： Takashi Furuhata , Kenji Satoh
IPC分类号： G11B5/592 , G11B15/467 , H04N5/7826 , H04N5/783 , H04N5/92 , H04N5/937
CPC分类号： G11B5/592 , G11B15/4675 , H04N5/783 , H04N5/937
摘要： A tracking control device for use in a rotary magnetic head type magnetic recording/reproducing apparatus, having a device for generating synchronizing signals in synchronism with the rotation of rotary magnetic heads, at a recording mode, records on a magnetic tape original information signals time-base converted so that the synchronizing information included in the information signals is in a predetermined synchronizing relation with said synchronizing signals, together with said synchronizing information; and at a reproduction mode of the recorded information, time-base converts the information signals and synchronizing information to restore the original information and controls the relative speed between the magnetic tape and rotary magnetic heads so that the time of the phase difference between the synchronizing signals and the reproduced synchronizing information is a predetermined value.
摘要翻译： 一种用于旋转磁头型磁记录/再现装置的跟踪控制装置，具有用于在记录模式下与旋转磁头的旋转同步地产生同步信号的装置，在磁带上记录原始信息信号， 基站转换，使得包含在信息信号中的同步信息与所述同步信号一起与所述同步信号预定的同步关系; 并且在记录信息的再现模式下，时基转换信息信号和同步信息以恢复原始信息并控制磁带和旋转磁头之间的相对速度，使得同步信号之间的相位差的时间 并且再现的同步信息是预定值。
-
公开(公告)号：US4916553A
公开(公告)日：1990-04-10
申请号：US170119
申请日：1988-03-15
IPC分类号： H04N5/7826 , H04N5/92 , H04N9/896
CPC分类号： H04N9/896 , H04N5/78266 , H04N5/92
摘要： In a rotary magnetic head helical scan type video tape recorder using a segment recording system, a video signal of one vertical scanning period is divided into n video signal blocks, where n is an integer equal to or larger than 2, and a redundant period having a selected length is inserted into the video signal blocks in a recording mode. Each of the video signal blocks has a number of horizontal scanning lines equal or smaller than N/n, where N is the number of the horizontal scanning lines in a field of the video signal. In a reproducing mode, a time axis error of reproduced series of the video signal blocks is corrected at least during the redunant periods. Then, the corrected blocks are converted into the original video signal.
摘要翻译： 在使用分段记录系统的旋转磁头螺旋扫描型磁带录像机中，将一个垂直扫描周期的视频信号分成n个视频信号块，其中n是等于或大于2的整数，并且具有 在记录模式下将选定的长度插入到视频信号块中。 每个视频信号块具有等于或小于N / n的多条水平扫描线，其中N是视频信号的场中的水平扫描线的数量。 在再现模式中，至少在冗余期间校正视频信号块的再现系列的时间轴误差。 然后，校正的块被转换成原始视频信号。
-
公开(公告)号：US4761523A
公开(公告)日：1988-08-02
申请号：US64043
申请日：1987-06-18
CPC分类号： H01H33/56 , H01H2033/568
摘要： Herein disclosed is a gas switch comprising: a body casing having an arc-extinguishing gas such as the SF6 gas and the like confined therein; bushings having their inner end portions inserted into said body casing; a rod-shaped stationary electrode and a hollow stationary electrode attached to the inner end portions of the bushings movable electrodes contacting with the rod-shaped stationary electrode at all times and made movable into and out of contact with said hollow stationary electrode; insulated bearing sleeves bearing the movable electrodes, respectively; a plurality of rocking arms for rocking in association with the turn of a drive shaft so that the movable electrodes are linearly moved through the insulated bearing sleeves by the rocking motions of the rocking arms to open and close the gas switch; and a connecting mechanism for connecting the rocking arms to the insulated bearing sleeves, respectively. The connecting mechanism includes: engaging grooves formed in the outer sides of the insulated bearing sleeves and opened at their sides facing the drive shaft; and engaging projections so formed in portions of the rocking arms as to directly engage with the engaging grooves and allowing in their engaging states the rocking arms to rock in the engaging grooves.
摘要翻译： 这里公开了一种气体开关，其包括：具有封闭在其中的诸如SF 6气体等的灭弧气体的主体壳体; 衬套的内端部插入到所述主体壳体中; 杆状固定电极和中空固定电极，其一直连接到与杆状固定电极接触的衬套可动电极的内端部，并且可移动地与所述中空固定电极接触和脱离接触; 分别承载可动电极的绝缘轴承套筒; 多个摇臂与驱动轴的转动相关地摇摆，使得可动电极通过摇臂的摇摆运动线性地移动通过绝缘的轴承套，以打开和关闭气体开关; 以及用于将摇臂分别连接到绝缘轴承套筒的连接机构。 连接机构包括：形成在绝缘轴承套的外侧并且在其面向驱动轴的侧面开口的接合槽; 以及如此形成在所述摇臂的部分中的接合突起，以与所述接合槽直接接合并且允许所述摇臂在所述接合状态下在所述接合槽中摇动。
-
7.发明授权Head switching signal producing circuit for a magnetic recording and reproducing apparatus 失效用于磁记录和再现装置的磁头切换信号产生电路
公开(公告)号：US4600953A
公开(公告)日：1986-07-15
申请号：US579595
申请日：1984-02-13
CPC分类号： G11B15/14
摘要： In a helical scanning type video tape recorder provided with two rotary video heads for recording and reproducing a video signal supplied to the heads in the oblique direction of a magnetic tape by alternately switching the two rotary video heads, there is generated a switching signal for the heads which is stable in standard and high speed reproducing modes and thereby stable reproduction always can be obtained. For this purpose, there are provided a circuit for detecting the rotary phase of any one of the two rotary heads, a clock signal generator circuit for generating a clock signal, a counter apparatus for counting the clock signal on the basis of the output of the rotary phase detecting circuit, and a circuit for generating a switching signal for alternately switching the two heads on the basis of the counted value of the counter apparatus.
摘要翻译： 在具有两个旋转视频头的螺旋扫描型磁带录像机中，通过交替切换两个旋转视频磁头来记录和再现沿磁带的倾斜方向提供给磁头的视频信号，产生用于 在标准和高速再现模式下稳定的头部，从而可以总是获得稳定的再现。 为此，提供了一种用于检测两个旋转磁头中任何一个旋转磁头的旋转相位的电路，用于产生时钟信号的时钟信号发生器电路，用于根据该时钟信号的输出对时钟信号进行计数的计数器装置 旋转相位检测电路，以及用于根据计数器装置的计数值产生用于交替切换两个头的切换信号的电路。
-
8.发明授权Method for transmitting a color video signal on a narrow-band transmission line 失效用于在窄带传输线上发送彩色视频信号的方法
公开(公告)号：US4210927A
公开(公告)日：1980-07-01
申请号：US903609
申请日：1978-05-08
申请人： Yasufumi Yumde , Takashi Furuhata
发明人： Yasufumi Yumde , Takashi Furuhata
CPC分类号： H04N11/042
摘要： A method for transmitting a color video signal on a narrow-band transmission line such as a telephone line or an audio tape recorder is disclosed. The carrier frequency is so reduced that no clock signal of high frequency is used. The carrier chrominance signal and the brightness or luminance signal are transmitted separately in time-division multiplication thereby to eliminate color distortion. The write clock signal frequency for the carrier chrominance signal is rendered inversely proportional to the product of a given number determined by the number of samples required for faithful transmission of the carrier chrominance signal and a multiple enabling the carrier frequency to be minimized. The read clock signal frequency for the carrier chrominance signal is reduced to one over an integer of the luminance signal, so that the carrier chrominance signal is read at intervals of the integer in order of storage in a memory. At the time of writing the color chrominance signal in the memory, the write clock frequency therefor is rendered equal to the write clock frequency for the luminance signal. Thus the capacity of the memory for the carrier chrominance signal is one over an integer of that for the luminance signal.
摘要翻译： 公开了一种在诸如电话线或音频磁带记录器的窄带传输线上发送彩色视频信号的方法。 载波频率减小，不使用高频时钟信号。 载波色度信号和亮度或亮度信号以时分乘法分开发送，从而消除颜色失真。 载波色度信号的写时钟信号频率与由载波色度信号的忠实传输所需的采样数确定的给定数乘以与允许载波频率最小化的倍数的乘积成反比。 用于载波色度信号的读取时钟信号频率减少到亮度信号的整数之一，使得载波色度信号以整数的间隔以存储在存储器中的顺序被读取。 在存储器中写入彩色色度信号时，其写入时钟频率等于亮度信号的写入时钟频率。 因此，用于载波色度信号的存储器的容量是用于亮度信号的容量的一个整数。
-
9.发明授权Video signal processing method and apparatus with timebase disturbance correction and dropout compensation 失效视频信号处理方法和具有时基干扰校正和丢失补偿的装置
公开(公告)号：US5239421A
公开(公告)日：1993-08-24
申请号：US688284
申请日：1991-04-22
摘要： A method of reproducing video signals from a magnetic recording medium like a magnetic tape for a VTR to obtain high-quality video pictures even when dropouts occur in the medium, which includes the steps of separating synchronizing information from the video signals reproduced from the magnetic recording medium, detecting a dropout duration from the reproduced video signals, generating complete synchronizing information during a whole period of writing the signals in image information memories by compensating lost synchronizing information during the dropout, generating write address signals on the basis of the generated synchronizing information, writing reproduced video signals the memories on the basis of the generated write address signals while no dropout occurs, and leaving unchanged previously written video signals while a dropout occurs. According to an apparatus implementing the above method, reproduced pictures of high quality are obtained without jitters and skews due to dropouts.
摘要翻译： 一种从VTR用磁带等磁记录介质再现视频信号的方法，即使在介质中出现缺陷时也能获得高质量的视频图像，其中包括从与磁记录重现的视频信号分离同步信息的步骤 介质，从再现的视频信号中检测出一个压差持续时间，在通过在丢失期间补偿丢失的同步信息的整个写入信号在图像信息存储器中的整个周期期间产生完整的同步信息，根据生成的同步信息产生写入地址信号， 在不产生压降的情况下，根据所生成的写入地址信号对再现的视频信号进行写入，并且在出现发生缺陷的同时留下未改变的先前写入的视频信号。 根据实现上述方法的设备，获得高质量的再现图像，而不会由于丢失而产生抖动和偏差。
-
公开(公告)号：US4907081A
公开(公告)日：1990-03-06
申请号：US184776
申请日：1988-04-22
CPC分类号： H04N5/9262 , H04N19/10 , H04N19/124 , H04N19/50 , H04N19/90
摘要： A coding device in which N digital signals (time-sequential sampled data), obtained by sampling and quantizing analog video signals, are brought together in one group (N being an integer greater than two) and coded. Among these N sampled data, at least one of them serving as a reference is coded with a number of quantization bits n, which is so great that errors due to the quantization can be neglected, and for the other sampled data the difference between the reference sampled data and each of the others is compressed and coded with a number of bits, which is smaller than n. In this way, even if a coding error is produced; effects thereof are restricted within the gorup where it is produced they are not exerted on the other groups, and thus error propagation does not occur.
摘要翻译： 编码装置，其中通过对模拟视频信号进行采样和量化获得的N个数字信号（时序采样数据）被组合在一起（N是大于2的整数）并被编码。 在这些N个采样数据中，用作参考的至少一个作为参考用多个量化位n进行编码，这样量化位数很大，使得可以忽略由于量化引起的误差，而对于其他采样数据，参考 采样数据，其他每一个被压缩和编码，其数量小于n。 这样，即使产生编码错误， 其产生的限制在产生它们的情况下不会施加在其他组上，因此不会发生错误传播。
-
-
-
-
-
-
-
-
-
搜索结果
37 条记录 (耗时 0.021 秒)
