-
1.发明授权Method and apparatus for recording and reproducing an information signal comprising a video signal and audio signal 失效用于记录和再现包括视频信号和音频信号的信息信号的方法和装置
公开(公告)号：US4542419A
公开(公告)日：1985-09-17
申请号：US463337
申请日：1983-02-02
申请人： Minoru Morio , Kenji Nakano , Hisayoshi Moriwaki
发明人： Minoru Morio , Kenji Nakano , Hisayoshi Moriwaki
CPC分类号： H04N5/928 , G11B20/10527 , G11B5/0086 , G11B5/00878
摘要： Apparatus for recording and reproducing an information signal comprising at least an analog audio signal in a plurality of successive tracks on a magnetic tape includes a PCM processing circuit for converting an analog audio signal into a PCM audio signal; a video signal processing circuit for processing a video signal to produce an output video signal; a rotary magnetic head assembly for recording the output video signal and the PCM audio signal in the plurality of successive tracks on the tape; a switch assembly for supplying the output video signal and the PCM audio signal to the rotary magnetic head assembly; and a control circuit for controlling the switch assembly to supply the output video signal and the PCM audio signal to the rotary magnetic head assembly during a video use mode so that the latter records the output video signal in a main section of each track and to supply only the PCM audio signal to the rotary magnetic head assembly during an audio use mode so that the latter records the PCM audio signal in different segments of the main section and overscan section of each track.
摘要翻译： 用于记录和再现在磁带上的多个连续轨道中至少包括模拟音频信号的信息信号的装置包括用于将模拟音频信号转换成PCM音频信号的PCM处理电路; 视频信号处理电路，用于处理视频信号以产生输出视频信号; 用于将输出视频信号和PCM音频信号记录在磁带上的多个连续轨道中的旋转磁头组件; 用于将输出视频信号和PCM音频信号提供给旋转磁头组件的开关组件; 以及控制电路，用于控制开关组件以在视频使用模式期间将输出视频信号和PCM音频信号提供给旋转磁头组件，使得后者将输出视频信号记录在每个磁道的主要部分中并提供 在音频使用模式期间仅将PCM音频信号传送到旋转磁头组件，以便后者将PCM音频信号记录在每个磁道的主要部分的不同部分和过扫描部分中。
-
2.发明授权Recording/reproducing apparatus for selectively processing monaural, stereo and bilingual signals 失效用于选择性地处理单声道，立体声和双语信号的记录/再现装置
公开(公告)号：US4583132A
公开(公告)日：1986-04-15
申请号：US478490
申请日：1983-03-24
IPC分类号： G11B20/00 , G11B5/09 , G11B5/52 , G11B15/087 , G11B20/02 , G11B20/10 , G11B20/12 , G11B27/036 , G11B27/10 , G11B27/30 , G11B27/32 , H04N5/928 , H04N5/782
CPC分类号： G11B20/10527 , G11B27/036 , G11B27/107 , G11B27/3027 , G11B27/324 , H04N5/928 , G11B2020/10592 , G11B2220/90
摘要： A system for use in recording/reproducing video and audio signals, where the audio signals to be recorded can consist of various kinds of signals such as stereo signals, bilingual signals, or monaural signals, in which the kind of audio signal that is present in the signal to be recorded is detected and a corresponding code is added to the audio signal prior to being encoded and recorded. During playback, the particular code is detected and used to control switches to select the corresponding proper audio reconverting system based on the detected code.
摘要翻译： 用于记录/再现视频和音频信号的系统，其中要记录的音频信号可以由诸如立体声信号，双语信号或单声道信号的各种信号组成，其中存在的音频信号的种类 检测要记录的信号，并且在编码和记录之前将相应的代码添加到音频信号。 在回放期间，检测特定代码并用于控制开关以基于检测到的代码来选择相应的适当的音频再转换系统。
-
公开(公告)号：US4442461A
公开(公告)日：1984-04-10
申请号：US316328
申请日：1981-10-29
摘要： A video signal is recorded with the associated audio signal inserted as a PCM digital signal in the back porch portions of the horizontal blanking intervals. In order to prevent the video pre-emphasis that is used in high-density recording from degrading the PCM digital signal, the video signal and the PCM digital signal are provided with separate and independent degrees of pre-emphasis. Upon playback, the video signal and the PCM digital signal are provided with corresponding independent respective amounts for de-emphasis. In order to fit a sufficient number of bits into the blanking intervals to provide high quality audio, the back porch portion is first extended by replacing the standard horizontal synch pulses with narrow pulses, so that the following back porch portions are correspondingly elongated.
摘要翻译： 记录视频信号，其中相关联的音频信号作为PCM数字信号插入在水平消隐间隔的后沿部分中。 为了防止在高密度记录中使用的视频预加重降级PCM数字信号，视频信号和PCM数字信号被提供有独立且独立的预加重度。 在重放时，视频信号和PCM数字信号被提供有用于去加重的相应独立的相应量。 为了将足够数量的位适配到消隐间隔以提供高质量音频，首先通过用窄脉冲替换标准水平同步脉冲来扩展后沿部分，使得后面的后沿部分相应地延伸。
-
4.发明授权Method and apparatus for reproducing an information signal comprised of a video signal and audio signal 失效用于再现由视频信号和音频信号组成的信息信号的方法和装置
公开(公告)号：US4542418A
公开(公告)日：1985-09-17
申请号：US459933
申请日：1983-01-21
CPC分类号： H04N9/8211 , H04N5/9268 , H04N5/928
摘要： A reproducing section of a helical scan VTR for reproducing a color television signal recorded in a plurality of successive parallel tracks on a magnetic tape and comprised of a video signal and at least one of a frequency-modulated audio signal and the combination of a PCM audio signal and run-in signal, with the video signal and frequency-modulated audio signal being recorded only in a main section of each track and the PCM audio signal being recorded only in an overscan section of each track, the VTR including a pair of magnetic heads which scan the tracks to reproduce the information signal recorded therein; a pair of switch circuits connected to the heads and which separate the information signal reproduced during scanning of the main section of each track and a signal reproduced during scanning of the overscan section of each track; a detector which detects the presence or absence of a run-in signal from the separated signal reproduced during scanning of the overscan section of each track and produces a detection signal in response thereto; an output; and a switch for switching an analog audio signal reproduced from the PCM audio signal to the output in response to the detection signal when a run-in signal is detected and an analog audio signal reproduced from the frequency-modulated audio signal to the output in response to the detection signal when no run-in signal is detected.
摘要翻译： 一种螺旋扫描VTR的再现部分，用于再现记录在磁带上的多个连续并行轨道中的彩色电视信号，并且包括视频信号和调频音频信号以及PCM音频的组合中的至少一个 信号和输入信号，其中视频信号和调频音频信号仅记录在每个磁道的主要部分中，并且PCM音频信号仅被记录在每个磁道的过扫描部分中，VTR包括一对磁 扫描轨道以再现记录在其中的信息信号的磁头; 连接到磁头的一对开关电路，并且分离在每个磁道的主要部分的扫描期间再现的信息信号和在每个磁道的过扫描部分的扫描期间再现的信号; 检测器，其从在每个轨道的过扫描部分的扫描期间再现的分离信号检测入侵信号的存在或不存在，并响应于此产生检测信号; 输出 以及用于当检测到输入信号时响应于检测信号将从PCM音频信号再现的模拟音频信号切换到输出的开关和从调频音频信号再现的模拟音频信号到响应的输出 到没有检测到输入信号时的检测信号。
-
5.发明授权Method and apparatus for recording video and audio signals in successive tracks on a record medium 失效用于在记录介质上的连续轨道中记录视频和音频信号的方法和装置
公开(公告)号：US4766505A
公开(公告)日：1988-08-23
申请号：US111107
申请日：1987-10-20
申请人： Kenji Nakano , Hisayoshi Moriwaki
发明人： Kenji Nakano , Hisayoshi Moriwaki
CPC分类号： H04N5/928
摘要： A method and apparatus for recording and reproducing an information signal comprised of a video signal and an audio signal in a plurality of successive parallel tracks on a magnetic tape, each track including a first audio section followed by a video section, by converting the audio signal into a PCM digital audio signal; compressing the PCM audio signal; frequency modulating the compressed PCM audio signal to produce an output PCM audio signal; and recording the output PCM audio signal and the video signal in the plurality of successive tracks such that one field interval of the video signal is recorded in the video section of each track and the output PCM audio signal corresponding to one field interval of the video signal is recorded in the audio section of each track and corresponds to the video signal in the leading portion of the previous successive track and the video signal in the trailing portion of the previous alternate track, wherein the audio signal recorded in each track is delayed by a maximum of 1.5 field intervals from the video signal to which it corresponds.
摘要翻译： 一种用于在磁带上的多个连续并行轨道中记录和再现包括视频信号和音频信号的信息信号的方法和装置，每个轨道包括跟随视频部分的第一音频部分，通过转换音频信号 成PCM数字音频信号; 压缩PCM音频信号; 对压缩的PCM音频信号进行频率调制以产生输出PCM音频信号; 并将输出PCM音频信号和视频信号记录在多个连续轨道中，使得视频信号的一个场间隔被记录在每个磁道的视频部分中，并且输出PCM音频信号对应于视频信号的一个场间隔 被记录在每个磁道的音频部分中，并且对应于先前连续磁道的前导部分中的视频信号和前一备用磁道尾部中的视频信号，其中记录在每个磁道中的音频信号被延迟一个 与其对应的视频信号最多1.5场。
-
6.发明授权Method and apparatus for selectively compensating burst errors of variable length in successive digital data words 失效用于在连续的数字数据字中选择性地补偿可变长度的突发错误的方法和装置
公开(公告)号：US4641309A
公开(公告)日：1987-02-03
申请号：US750243
申请日：1985-07-01
申请人： Kenji Nakano , Hisayoshi Moriwaki
发明人： Kenji Nakano , Hisayoshi Moriwaki
CPC分类号： H04L1/0057 , G11B20/1806 , G11B20/1876 , H04L1/0045
摘要： A method and apparatus for selectively compensating burst errors of variable length in successive data words. Correct and erroneous data words are identified, and the presence of one of the following error conditions is sensed: (a) an erroneous data word preceded and followed, respectively, by correct data words; (b) plural successive erroneous data words preceded and followed, respectively, by correct data words; and (c) a predetermined number of successive erroneous data words preceded by a correct data word. These error conditions are compensated respectively as follows: (a) the erroneous data word is replaced with a compensated data word derived from one interpolation of a correct preceding and following data word; (b) the plural erroneous data words are replaced with respective compensated data words derived from plural interpolations of the correct preceding and following data words; and (c) at least the first of the predetermined number of successive erroneous data words is replaced with the preceding correct data word.
摘要翻译： 一种用于在连续数据字中选择性地补偿可变长度的突发错误的方法和装置。 识别正确和错误的数据字，并且感测到存在以下错误条件之一：（a）分别以正确数据字前后的错误数据字; （b）分别由正确数据字前后的多个连续的错误数据字; 和（c）在正确的数据字之前的预定数量的连续的错误数据字。 这些误差条件分别被补偿如下：（a）错误的数据字被从正确的前后数据字的一个内插导出的补偿数据字代替; （b）将多个错误数据字替换为从正确的前一个和后续数据字的多个内插导出的相应的补偿数据字; 和（c）至少预定数量的连续错误数据字中的第一个被替换为前面的正确数据字。
-
7.发明授权Apparatus for recording additional video signals in a helical scan operation 失效用于在螺旋扫描操作中记录附加视频信号的装置
公开(公告)号：US4575772A
公开(公告)日：1986-03-11
申请号：US478491
申请日：1983-03-24
IPC分类号： H04N5/91 , G11B20/00 , G11B20/12 , G11B27/032 , G11B27/036 , G11B27/30 , G11B27/34 , H04N5/262 , H04N5/926 , H04N5/928 , H04N7/00 , G11B5/09
CPC分类号： H04N5/9268 , G11B27/036 , G11B27/3027 , H04N5/928 , G11B2220/90 , G11B27/032
摘要： A video signal recording apparatus of the type that records a coded audio signal through time division relative to a video signal at one extended end of each of oblique tracks formed on a magnetic tape by helical scanning. The apparatus comprises a circuit for recording a coded video signal in the track region where a coded audio signal is recorded, and a circuit for recording identification data to discriminate between the coded audio signal and the coded video signal on the magnetic tape or recording control data thereon to control playback modes of the recorded signals.
摘要翻译： 一种视频信号记录装置，其类型是通过螺旋扫描在磁带上形成的每个倾斜轨道的一个延伸端，通过时分相对于视频信号记录编码音频信号。 该装置包括用于在记录有编码音频信号的轨道区域中记录编码视频信号的电路，以及用于记录识别数据以鉴别编码音频信号和磁带上的编码视频信号或记录控制数据的电路 以控制记录信号的重放模式。
-
8.发明授权Method and apparatus for compensating for tape jitter during recording and reproducing of a video signal and PCM audio signal 失效在视频信号和PCM音频信号的记录和再现期间补偿磁带抖动的方法和装置
公开(公告)号：US4549229A
公开(公告)日：1985-10-22
申请号：US462517
申请日：1983-01-31
摘要： Apparatus for recording and reproducing an information signal comprised of a video signal and an audio signal in a plurality of successive tracks on a magnetic tape, includes a recording section comprised of a PCM processor which converts the audio signal to a PCM audio signal and compresses the same, a dummy signal generator for compensating for tape jitter by generating a dummy signal and supplying the same to the PCM processor where the dummy signal is added both before and after each portion of the compressed PCM audio signal to be recorded in an overscan section of each track, and a magnetic head assembly which records the video signal in a main section of each track and each portion of the compressed PCM audio signal and dummy signal added thereto in the overscan section of each track; and a reproducing section comprised of a magnetic head assembly which scans the tracks to reproduce the information signal recorded therein, a switch assembly which separates the video signal reproduced from the main section of each track and the PCM audio signal reproduced from the overscan section of each track; a PCM processor which converts the PCM audio signal to the original analog audio signal and a timing signal generator for compensating for tape jitter by enabling the PCM processor only during a period slightly greater than the period of the PCM audio signal recorded in the overscan section of each track.
摘要翻译： 用于在磁带上的多个连续轨道中记录和再现由视频信号和音频信号组成的信息信号的装置包括：PCM处理器的记录部分，该PCM处理器将音频信号转换成PCM音频信号并压缩 相同的虚拟信号发生器，用于通过产生虚拟信号来补偿磁带抖动，并将其提供给PCM处理器，在PCM处理器中，将待记录的压缩PCM音频信号的每个部分之前和之后添加虚拟信号， 每个轨道和磁头组件，其将每个轨道的主要部分中的视频信号和压缩的PCM音频信号的每个部分以及添加到其中的虚拟信号记录在每个磁道的过扫描部分中; 以及由磁头组件组成的再现部分，该磁头组件扫描轨道以再现记录在其中的信息信号;开关组件，其将从每个磁道的主要部分再现的视频信号和从每个磁道的过扫描部分再现的PCM音频信号分离; 跟踪; PCM处理器，其将PCM音频信号转换为原始模拟音频信号;以及定时信号发生器，用于通过仅在稍微大于记录在过扫描部分中的PCM音频信号的周期的周期内使能PCM处理器来补偿磁带抖动 每个轨道。
-
公开(公告)号：US4533963A
公开(公告)日：1985-08-06
申请号：US460390
申请日：1983-01-24
IPC分类号： G11B20/00 , G11B20/10 , G11B27/02 , G11B27/024 , G11B27/029 , G11B27/30 , H04N5/928 , G11B5/49
CPC分类号： H04N5/928 , G11B20/10527 , G11B27/029 , G11B27/3027 , G11B2220/90 , G11B27/024
摘要： In a magnetic recording and/or reproducing apparatus of the kind in which the azimuth angles of recorded signals in adjacent tracks on a magnetic recording medium are made different with each other so as not to require a guard band and having a rotary head assembly including at least a pair of magnetic transducing heads, each having the head width larger than the track width, when a portion of an audio signal on the magnetic medium is re-recording, an identification information signal is recorded on a predetermined track in connection with the first or last track for which the re-recording is required so that signal deterioration and noise caused by track width fluctuation or variation is compensated for.
摘要翻译： 在这样一种磁记录和/或再现装置中，磁记录介质上的相邻轨迹中的记录信号的方位角彼此不同，以便不需要保护带并具有包括在其中的旋转头组件 当磁记录介质上的音频信号的一部分被重新记录时，至少一对磁转换头的磁头宽度大于轨道宽度，识别信息信号被记录在与第一 或需要重新记录的最后一个轨道，以便补偿由轨道宽度波动或变化引起的信号劣化和噪声。
-
公开(公告)号：US4816926A
公开(公告)日：1989-03-28
申请号：US807514
申请日：1985-11-27
申请人： Hisayoshi Moriwaki , Kenji Nakano
发明人： Hisayoshi Moriwaki , Kenji Nakano
CPC分类号： G11B20/00007 , G11B20/10527 , G11B5/0086 , G11B5/00878 , H04N5/928
摘要： This invention relates to an information signal recording apparatus which can be used also as an audio tape recorder only. When it is used only as the audio tape recorder, an audio signal is sampled with a frequency m times the sampling frequency of an audio signal which is used upon recording a video signal and the thus sampled PCM digital audio signal is diffusively recorded on at least two recording intervals thereby to improve the tone quality of the audio signal and the compatibility with the audio tape recorder using a video tape recorder of the same kind can be established.
摘要翻译： PCT No.PCT / JP85 / 00213 Sec。 371日期：1985年11月27日 102（e）1985年11月27日PCT PCT公布1985年4月18日PCT公布。 出版物WO85 / 04979 日期：1985年11月7日。本发明涉及一种信息信号记录装置，它也可用作音频磁带录音机。 当它仅用作音频磁带录像机时，音频信号以记录视频信号所使用的音频信号的采样频率的m倍采样，并且这样采样的PCM数字音频信号至少扩散地记录 两个记录间隔因此可以改善音频信号的音质，并且可以建立与使用相同类型的录像机的音频磁带录音机的兼容性。
-
-
-
-
-
-
-
-
-
搜索结果
127 条记录 (耗时 0.023 秒)
