专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US4630132A Video signal recording/reproducing apparatus 失效
标题翻译：视频信号记录/再现装置
公开(公告)号：US4630132A
公开(公告)日：1986-12-16
申请号：US559086
申请日：1983-12-07
申请人： Toshimichi Terada , Noboru Kojima , Akira Shibata
发明人： Toshimichi Terada , Noboru Kojima , Akira Shibata
IPC分类号： H04N5/7826 , H04N9/82 , H04N9/825 , H04N9/493 , H04N5/78
CPC分类号： H04N9/8255 , H04N5/78263 , H04N9/8205 , H04N9/8216 , H04N9/825
摘要： A helical scan type magnetic recording/reproducing apparatus in which a magnetic tape is guided helically around a rotary magnetic head assembly over an angular range approximating to 360.degree.. Two magnetic heads are disposed relatively closely to each other at an angle smaller than 180.degree.. The rotary magnetic heads assembly performs a single complete rotation for a unit period, for example, one field period. In recording, video signal of the unit period undergoes time axis compression to be compressed to a period corresponding to a scanning period of the heads during which the magnetic heads are in contact with the magnetic tape in each rotation of the head assembly and supplied to alternately the magnetic heads which are so designed that the azimuth angles of the respective gaps differ from each other. Alternatively, the video signal is separated into a luminance signal and a chrominance signal, wherein the former is supplied to one of the magnetic heads while the latter is simultaneously supplied to the other.
摘要翻译：一种螺旋扫描型磁记录/再现装置，其中磁带在近似于360度的角度范围内螺旋地绕旋转磁头组件被引导。两个磁头以小于180°的角度彼此相对靠近地设置。旋转磁头组件在单个周期内执行单个完整旋转，例如，一个场周期。在记录中，单位周期的视频信号经历时间轴压缩，以被压缩到对应于在头部组件的每次旋转期间磁头与磁带接触的磁头的扫描周期的时间段，并交替提供磁头被设计成使得各间隙的方位角彼此不同。或者，视频信号被分成亮度信号和色度信号，其中前者被提供给一个磁头，而后者则被提供给另一个。

12. 发明授权

US4466026A Record/reproduce circuit for VTR 失效
标题翻译：录像/再生电路
公开(公告)号：US4466026A
公开(公告)日：1984-08-14
申请号：US349519
申请日：1982-02-17
申请人： Kuniaki Miura , Akira Shibata , Noboru Kojima , Keiichi Komatsu , Teizo Tamura , Makoto Konosu , Yasuji Moriyama
发明人： Kuniaki Miura , Akira Shibata , Noboru Kojima , Keiichi Komatsu , Teizo Tamura , Makoto Konosu , Yasuji Moriyama
IPC分类号： G11B5/027 , G11B15/14 , H04N5/14 , H04N5/93 , G11B5/02 , H04N5/782
CPC分类号： G11B15/14 , H04N5/93
摘要： A record/reproduce circuit for VTR comprising two normal reproducing heads with different azimuth angles, a special reproducing head with the same azimuth angle as that of the one normal reproducing head, a rotary transformer through which signals from these heads are supplied to a static circuit section, a change-over means for alternately switching a signal from the special reproducing head and a signal from the other normal reproducing head with a different azimuth angle from that of the special reproducing head, a feedback type preamplifier for amplifying the output of the change-over means, and another feedback-type preamplifier for amplifying a signal from the normal reproducing head with the same azimuth angle as that of the special reproducing head.
摘要翻译：一种用于VTR的记录/再现电路，包括具有不同方位角的两个正常再现头，具有与一个正常再现头的方位角相同的方位角的专用再现头，通过该旋转变压器将来自这些磁头的信号提供给静态电路切换装置，用于交替地切换来自专用再现头的信号和来自另一正常再现头的信号与来自专用再现头的方位角不同的方位角;反馈型前置放大器，用于放大变化的输出以及另一个反馈型前置放大器，用于以与特殊再现头相同的方位角放大来自正常再现头的信号。

13. 发明授权

US5132793A Television receiver compatible with both standard system television signal and high definition television signal 失效
标题翻译：电视接收机兼容标准系统电视信号和高分辨率电视信号
公开(公告)号：US5132793A
公开(公告)日：1992-07-21
申请号：US490850
申请日：1990-03-09
申请人： Shigeru Hirahata , Shinobu Torikoshi , Toshiyuki Sakamoto , Takumi Okamura , Noboru Kojima , Tetsuo Mitsuhashi , Isao Kondo , Yuichi Ninomiya , Koichi Yamaguchi , Toshiro Ohmura
发明人： Shigeru Hirahata , Shinobu Torikoshi , Toshiyuki Sakamoto , Takumi Okamura , Noboru Kojima , Tetsuo Mitsuhashi , Isao Kondo , Yuichi Ninomiya , Koichi Yamaguchi , Toshiro Ohmura
IPC分类号： H04N5/46 , H04N7/01 , H04N9/64
CPC分类号： H04N7/012 , H04N7/0122 , H04N9/642
摘要： There is disclosed a compatible television receiver capable of receiving and reproducing both the standard system television signal and the high definition television signal and capable of confining the degradation of picture quality of the high definition television signal to the minimum, in which the received standard system television signal and high definition television signal are respectively converted to non-interlace signals, and scanning is selectively performed with either of non-interlace video signals to display images. The television receiver according to the present invention comprises a first conversion circuit for receiving an interlace standard system television signal and converting it into a non-interlace television signal, a second conversion circuit for receiving an interlace high definition television signal and converting it into a non-interlace televison signal, a circuit for discriminating whether the received signal is the standard system television signal or the high definition signal, and a circuit for selecting either of outputs of the first and second conversion circuits on the basis of the result obtained in the discrimination circuit.
摘要翻译：公开了能够接收和再现标准系统电视信号和高分辨率电视信号并且能够将高清晰度电视信号的图像质量的劣化限制在最小的兼容电视接收机，其中所接收的标准系统电视信号和高分辨率电视信号分别转换为非隔行扫描信号，并且使用非隔行扫描视频信号中的任一个选择性地执行扫描以显示图像。根据本发明的电视接收机包括：第一转换电路，用于接收隔行扫描标准系统电视信号并将其转换为不隔行电视信号;第二转换电路，用于接收隔行高清晰度电视信号并将其转换成非隔行电视信号; 隔离电视信号，用于鉴别接收到的信号是标准系统电视信号还是高分辨率信号的电路，以及用于基于在鉴别中获得的结果来选择第一和第二转换电路的输出之一的电路电路。

14. 发明授权

US4497004A Picture reproducing apparatus in a helical scanning video tape recorder 失效
标题翻译：螺旋式扫描磁带录像机中的图像重放装置
公开(公告)号：US4497004A
公开(公告)日：1985-01-29
申请号：US384742
申请日：1982-06-02
申请人： Akira Shibata , Makoto Konosu , Teizo Tamura , Koichi Hirose , Kuniaki Miura , Noboru Kojima , Keiichi Komatsu
发明人： Akira Shibata , Makoto Konosu , Teizo Tamura , Koichi Hirose , Kuniaki Miura , Noboru Kojima , Keiichi Komatsu
IPC分类号： G11B20/02 , H04N5/931 , G11B5/52
CPC分类号： G11B20/02 , H04N5/9315 , H01F2038/143
摘要： A picture reproducing apparatus for a helical scanning video tape recorder including an impedance transformer; a video head connected to the input of the impedance transformer; a resonance circuit connected to the output of the impedance transformer; a pre-amplifier connected to the output of the resonance circuit; a feedback resistor connected between the junction of the pre-amplifier and resonance circuit and the output of the pre-amplifier; and an output terminal connected to the output of the pre-amplifier. The impedance transformer has the output impedance four times as high as the input impedance thereof.
摘要翻译：一种用于包括阻抗变换器的螺旋扫描磁带录像机的图像再现装置; 连接到所述阻抗变换器的输入的视频头; 连接到所述阻抗变换器的输出的谐振电路; 连接到谐振电路的输出的前置放大器; 连接在前置放大器和谐振电路的接点与前置放大器的输出端之间的反馈电阻器; 以及连接到前置放大器的输出端的输出端子。阻抗变压器的输出阻抗为输入阻抗的四倍。

15. 发明授权

US4491880A Magnetic recording and/or reproducing apparatus 失效
标题翻译：磁记录和/或再现装置
公开(公告)号：US4491880A
公开(公告)日：1985-01-01
申请号：US421401
申请日：1982-09-22
申请人： Noboru Kojima , Yoshizumi Watatani , Takao Arai , Takashi Hoshino , Toshifumi Shibuya
发明人： Noboru Kojima , Yoshizumi Watatani , Takao Arai , Takashi Hoshino , Toshifumi Shibuya
IPC分类号： H04N5/91 , G11B5/02 , G11B5/035 , G11B20/12 , H04N5/928 , H04N5/782
CPC分类号： G11B5/035 , H04N5/928
摘要： In a magnetic recording and reproducing apparatus of 2-head helical scan type, an overlapping portion is formed at one end of each video track on a magnetic tape, and a PCM audio signal is recorded on this overlapping portion. Video/audio selective switching circuits are disposed on the input or output side of video and audio recording amplifiers, and video/audio selective switching circuits and video/audio playback equalizer circuits are disposed on the output side of video and audio playback amplifiers. Each of the heads acts as both of a video head and an audio head.
摘要翻译：在2磁头螺旋扫描型的磁记录和再现装置中，在磁带上的每个视频磁道的一端形成重叠部分，并且PCM音频信号被记录在该重叠部分上。视频/音频选择开关电路设置在视频和音频记录放大器的输入或输出侧，并且视频/音频选择开关电路和视频/音频重放均衡器电路设置在视频和音频播放放大器的输出侧。每个头都用作视频头和音频头。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式