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

US5250917A Equivalent inductance circuit 失效
标题翻译：等效电感电路
公开(公告)号：US5250917A
公开(公告)日：1993-10-05
申请号：US875797
申请日：1992-04-28
申请人： Fumiaki Honda , Nobukazu Hosoya
发明人： Fumiaki Honda , Nobukazu Hosoya
IPC分类号： H03H11/48 , H03H11/00
CPC分类号： H03H11/48
摘要： An equivalent inductance circuit includes a feedback type integration circuit and a differential amplifying circuit. An input signal applied to an input terminal is integrated by the feed-back type integration circuit and, a signal according to a difference component between an integrated output signal and the input signal is outputted by the differential amplifying circuit. By feeding the difference signal back to the input terminal, an input impedance equivalently represents an inductance characteristic. Such equivalent inductance can be changed by a current from a variable current source which supplies the current to the differential amplifying circuit and, a change of the equivalent inductance shows an inverse proportional manner.

12. 发明授权

US5661530A Television circuit utilizing color burst signal 失效
标题翻译：利用色同步信号的电视电路
公开(公告)号：US5661530A
公开(公告)日：1997-08-26
申请号：US212890
申请日：1994-03-15
申请人： Fumiaki Honda , Nobukazu Hosoya
发明人： Fumiaki Honda , Nobukazu Hosoya
IPC分类号： H04N9/455 , H04N9/68 , H04N9/70 , H04N11/14
CPC分类号： H04N11/146 , H04N9/68 , H04N9/70
摘要： A television circuit (10) according to the invention includes a multiplier (12), and a voltage signal (V1) is outputted from an LPF (22) in accordance with the presence or absence of a color burst signal which is to be inputted to the multiplier (12). A rectangular-wave signal (Va) is obtained on the basis of the voltage signal (V1) through a peak holding circuit (24) and a sampling/holding circuit (42). A rectangular-wave signal (Vc) is obtained by averaging the rectangular-wave signal (Va) and a rectangular-wave signal (Vb) which is obtained by delaying the signal (Va) by a 1H delay circuit (44) by an adder (46) and a 1/2 multiplication circuit (48). On the basis of the rectangular-wave signal (Vc), a voltage signal (V3) is produced by an LPF (52) having a relatively small time constant, which is compared with a reference voltage (Vref) by a level-comparator (54), whereby a signal is outputted. The signal is used as a color killer signal for a color killer circuit, for example.
摘要翻译：根据本发明的电视电路（10）包括乘法器（12），并且根据要输入的彩色同步信号的存在或不存在，从LPF（22）输出电压信号（V1）乘数（12）。基于通过峰值保持电路（24）和采样/保持电路（42）的电压信号（V1）获得矩形波信号（Va）。通过对通过加法器延迟1H延迟电路（44）的信号（Va）而获得的矩形波信号（Va）和矩形波信号（Vb）进行平均，得到矩形波信号（Vc）（46）和a + E，fra 1/2 + EE乘法电路（48）。基于矩形波信号（Vc），通过具有相对较小的时间常数的LPF（52）产生电压信号（V3），其通过电平比较器（参考电压（Vref））与参考电压（Vref）进行比较 54），从而输出信号。该信号例如用作彩色抑制电路的彩色抑制信号。

13. 发明授权

US5432565A Y/C separation circuit for video use having separating means for separating the chrominance signal and the luminance signal on the basis of input and output signals 失效
标题翻译：用于视频使用的Y / C分离电路具有基于输入和输出信号分离色度信号和亮度信号的分离装置
公开(公告)号：US5432565A
公开(公告)日：1995-07-11
申请号：US216589
申请日：1994-03-23
申请人： Fumiaki Honda , Nobukazu Hosoya
发明人： Fumiaki Honda , Nobukazu Hosoya
IPC分类号： H04N9/78
CPC分类号： H04N9/78
摘要： A Y/C separation circuit includes a first adder by which a carrier-multiplexed composite video signal is produced by multiplexing a color sub-carrier signal which is in synchronization with a color burst signal on a composite video signal during a vertical blanking period. The carrier-multiplexed composite video signal inputted to a 1H delay line and outputted from the 1H delay line. The carrier-multiplexed composite video signals at the input and the output of the 1H delay line are inputted to a second adder, and a subtracter, respectively. A luminance signal component and a chrominance signal component are respectively outputted from the second adder and the subtracter.
摘要翻译： Y / C分离电路包括第一加法器，通过在第一加法器中通过在垂直消隐期间复用与复合视频信号上的色同步信号同步的彩色副载波信号来产生载波复用复合视频信号。输入到1H延迟线并从1H延迟线输出的载波复用复合视频信号。在1H延迟线的输入和输出端的载波复用复合视频信号分别输入到第二加法器和减法器。分别从第二加法器和减法器输出亮度信号分量和色度信号分量。

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