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1. 发明授权

US5760820A Digital signal transmission system with priority information forcing display of text on a receiver 失效
标题翻译：具有优先信息的数字信号传输系统强制在接收机上显示文本
公开(公告)号：US5760820A
公开(公告)日：1998-06-02
申请号：US598006
申请日：1996-02-07
申请人： Takanori Eda , Isao Nakagawa , Keiro Shinkawa , Tsutomu Noda , Toshio Nagashima , Kenji Katsumata , Satoshi Iimuro
发明人： Takanori Eda , Isao Nakagawa , Keiro Shinkawa , Tsutomu Noda , Toshio Nagashima , Kenji Katsumata , Satoshi Iimuro
IPC分类号： H04N19/00 , H04N5/445 , H04N7/025 , H04N7/03 , H04N7/035 , H04N7/14 , H04N7/16 , H04N7/173 , H04N19/102 , H04N19/134 , H04N19/162 , H04N19/196 , H04N19/37 , H04N19/42 , H04N19/423 , H04N19/70 , H04N21/236 , H04N21/2365 , H04N7/10
CPC分类号： H04N7/147 , H04N21/23614 , H04N21/2365 , H04N21/4347 , H04N21/4348 , H04N21/4882 , H04N21/814
摘要： A digital signal transmission system including a transmitter and a receiver and capable of transmitting highly efficiently compressed/coded digital video signals and receiving the video signals so that the text of emergency information or the like can be displayed together with video images without once expanding/decoding the digital video signals on the transmitter side. In this system, the multiplexer of the transmitter multiplexes digital video signals and digital audio signals with a digital information signal of text which is produced and has N-level priority information added by the information stream generator, and transmits the multiplex signal to the receiver. The receiver determines whether the text of the digital information signal is to be displayed on the basis of the priority information added to the digital information signal, and when it is determined that the text are to be displayed, the receiver can display the text of the digital information signal together with the image of the digital video signal.
摘要翻译：一种数字信号传输系统，包括发射机和接收机，并且能够传输高效率的压缩/编码数字视频信号并接收视频信号，使得紧急信息等的文本与视频图像一起显示，而无需一次扩展/解码发射机侧的数字视频信号。在该系统中，发射机的多路复用器利用产生的文本的数字信息信号多路复用数字视频信号和数字音频信号，并且由信息流发生器添加了N级优先级信息，并将多路复用信号发送到接收机。接收机根据添加到数字信息信号的优先级信息确定是否显示数字信息信号的文本，并且当确定要显示文本时，接收器可以显示文本数字信息信号与数字视频信号的图像一起。

2. 发明授权

US4731875A Frequency converter used for a receiver which receives signals of a UHF band or a microwave band 失效
标题翻译：用于接收UHF频带或微波频带信号的接收机的变频器
公开(公告)号：US4731875A
公开(公告)日：1988-03-15
申请号：US827626
申请日：1986-02-10
申请人： Hiroyuki Mizukami , Masaki Noda , Toshio Nagashima , Keiro Shinkawa
发明人： Hiroyuki Mizukami , Masaki Noda , Toshio Nagashima , Keiro Shinkawa
IPC分类号： H03D7/18 , H03D7/16 , H03H9/42 , H04B1/10
CPC分类号： H03D7/165 , H03D7/18
摘要： A frequency converter which is capable of rejecting unnecessary signals generated by image signals. The frequency converter has first and second local oscillation circuits which generate local oscillation signals whose frequencies are the same and whose phases are different by 90 degrees from each other. The converter further includes two mixer circuits, and a hybrid coupler. The mixer circuits generate two unnecessary signals whose phases are different by 90 degrees from each other. The hybrid coupler delays one unnecessary signal by a quarter of a wavelength to generate two unnecessary signals whose phases are different by 180 degrees from each other, so that they are cancelled by each other.
摘要翻译：一种频率转换器，其能够抑制由图像信号产生的不必要的信号。该变频器具有第一和第二本地振荡电路，其产生频率相同且相位彼此相差90度的本地振荡信号。该转换器还包括两个混频器电路和一个混合耦合器。混频器电路产生相位相差90度的两个不必要的信号。混合耦合器将一个不必要的信号延迟四分之一波长以产生相位彼此相差180度的两个不必要的信号，使得它们被彼此抵消。

3. 发明授权

US4642573A Phase locked loop circuit for demodulating suppressed carrier signals 失效
标题翻译：用于解调抑制载波信号的锁相环电路
公开(公告)号：US4642573A
公开(公告)日：1987-02-10
申请号：US783521
申请日：1985-10-03
申请人： Tsutomu Noda , Keiro Shinkawa , Nobutaka Amada
发明人： Tsutomu Noda , Keiro Shinkawa , Nobutaka Amada
IPC分类号： H03D1/24 , H03D3/24 , H03D7/16 , H03L7/087 , H04L27/227 , H03D3/02 , H04L27/22
CPC分类号： H04L27/2272 , H03D3/242 , H03D3/245 , H03L7/087 , H03D2200/0031 , H03D7/161
摘要： A phase locked loop circuit for use in a heterodyne receiver for stably demodulating a carrier-suppressed double-sideband signal such as a 2-phase or 4-phase PSK signal. The phase locked loop circuit comprises a reference oscillator oscillating at a frequency corresponding to an intermediate frequency, and the frequency difference between the reference frequency and the input frequency is detected by a Costas loop, a signal indicative of the frequency difference being fed back to a local oscillator through a loop filter thereby stabilizing the intermediate frequency.
摘要翻译：一种用于外差接收机的锁相环电路，用于稳定解调诸如2相或4相PSK信号的载波抑制双边带信号。锁相环电路包括以对应于中频的频率振荡的参考振荡器，并且通过科斯塔斯回路检测参考频率与输入频率之间的频率差，表示频差的信号被反馈到本地振荡器通过环路滤波器，从而稳定中频。

4. 发明授权

US5210607A Ghost reduction device for removing ghost components of a television signal 失效
标题翻译：用于去除电视信号的重影分量的减魂装置
公开(公告)号：US5210607A
公开(公告)日：1993-05-11
申请号：US699917
申请日：1991-05-14
申请人： Toshiyuki Sakamoto , Tsutomu Noda , Keiro Shinkawa
发明人： Toshiyuki Sakamoto , Tsutomu Noda , Keiro Shinkawa
IPC分类号： H04N5/21
CPC分类号： H04N5/211
摘要： A ghost elimination device equipped in a television receiver extracts a reference signal from the television signal, the reference signal being inserted in the television signal in a certain sequence or at random with the intention of ghost elimination, implements the sequence decoding process and noise elimination process for the reference signal, and controls the characteristics of the ghost eliminating transversal filter which suppresses the transmission distortion. The device includes a sequence decoding circuit for decoding the transmission sequence of the reference signal, a transversal filter for suppressing the distortion of transmission path disposed in a rear stage of sequence decoding circuit, and a controller which introduces the reference signal provided by the filter to control the characteristics of the filter or apply the output of the sequence decoding circuit to the transversal filter through a noise elimination filter. The transversal filter has a tapped delay line formed of registers with an initialization terminal and an input terminal for controlling the initialization terminal.
摘要翻译：配置在电视接收机中的除鬼装置从电视信号中提取参考信号，参考信号以特定顺序插入电视信号中，或者随机地抽取，以实现重像消除，实现序列解码处理和噪声消除处理用于参考信号，并且控制抑制透射失真的重影消除横向滤波器的特性。该装置包括用于解码参考信号的发送序列的序列解码电路，用于抑制设置在序列解码电路的后级中的传输路径的失真的横向滤波器，以及将由滤波器提供的参考信号引入到控制滤波器的特性或通过噪声消除滤波器将序列解码电路的输出应用于横向滤波器。横向滤波器具有由初始化端子和用于控制初始化端子的输入端子的寄存器形成的抽头延迟线。

5. 发明授权

US5285279A Ghost canceller using fuzzy control 失效
标题翻译： Ghost消除器使用模糊控制
公开(公告)号：US5285279A
公开(公告)日：1994-02-08
申请号：US751777
申请日：1991-08-29
申请人： Toshiyuki Sakamoto , Tsutomu Noda , Keiro Shinkawa
发明人： Toshiyuki Sakamoto , Tsutomu Noda , Keiro Shinkawa
IPC分类号： H04N5/21
CPC分类号： H04N5/211 , H03H2222/02
摘要： A transmission distortion elimination device for eliminating from a transmitted TV signal, for example, signal distortion such as ghost under fuzzy inferenced control based on an iterative correction method with the capabilities of fast control settling, and a flexible and stable distortion removal operation. The device comprises a filter section for suppressing such transmission distortion as ghost, a controller for controlling the tap coefficients of the filter section, and a fuzzy inference section for receiving distortion information obtained by the controller. The fuzzy inference section iteratively infers and evaluates a correction value of tap coefficients of the filter section. The tap coefficient correction value is determined through fuzzy inference, and the control method for counteracting disturbance coefficients to the control system is described in rules of IF-THEN form based on fuzzy levels, which facilitates the organization of the control algorithm. By the capability of deriving from these rules the correction value which is made continuously variable, the fast control settling, and the stable and flexible transmission distortion elimination operation can be accomplished.
摘要翻译：一种传输失真消除装置，用于基于具有快速控制稳定能力的迭代校正方法，从发射的TV信号中消除例如模糊参考控制下的重影等信号失真，以及灵活且稳定的失真消除操作。该装置包括用于抑制如重影的传输失真的滤波器部分，用于控制滤波器部分的抽头系数的控制器和用于接收由控制器获得的失真信息的模糊推理部分。模糊推理部分迭代地推导和评估滤波器部分的抽头系数的校正值。抽头系数校正值是通过模糊推理确定的，并且基于模糊级别的IF-THEN形式的规则描述了对控制系统的干扰系数的抵消控制方法，这有助于组织控制算法。通过从这些规则得出能够连续变化的校正值，可以实现快速控制稳定，稳定灵活的发送失真消除操作。

6. 发明授权

US5138451A Television receiver 失效
标题翻译：电视接收机
公开(公告)号：US5138451A
公开(公告)日：1992-08-11
申请号：US393696
申请日：1989-08-10
申请人： Keiro Shinkawa , Tsutomu Noda , Toshinori Murata , Nobutaka Hotta , Kazuhiro Ooyagi
发明人： Keiro Shinkawa , Tsutomu Noda , Toshinori Murata , Nobutaka Hotta , Kazuhiro Ooyagi
IPC分类号： H04N5/21 , H04N5/44
CPC分类号： H04N5/44 , H04N5/211
摘要： A sync generator which generates a reference horizontal synchronizing signal, a time difference detector which detects the time difference between the reference horizontal synchronizing signal and a horizontal synchronizing signal within a received television signal, and a variable delay circuit which responds to an output signal of the time difference detector to control the delay time and delay the received television signal are installed in a television receiver. When a plurality of horizontal synchronizing signals exist in one horizontal scanning period of the received television signal, the time difference between the horizontal synchronizing signal with the maximum amplitude and the reference horizontal synchronizing signal is detected, and the delay time of the received television signal is controlled in the variable delay circuit according to this time difference. As a result, the phase of the horizontal synchronizing signal with the maximum amplitude matches the phase of the reference horizontal synchronizing signal. Therefore, when changes in the receiving environment cause the signal strength of ghosts to become greater than that of an original signal and it becomes desirable to receive the ghost as a main signal in place of the original signal, it is possible to switch from reception of the original signal to reception of the ghost signal without resulting in distortion of synchronization.
摘要翻译：产生参考水平同步信号的同步发生器，检测接收到的电视信号中的参考水平同步信号和水平同步信号之间的时间差的时差检测器，以及可变延迟电路，时间差检测器控制延迟时间并延迟所接收的电视信号被安装在电视接收机中。当在所接收的电视信号的一个水平扫描周期中存在多个水平同步信号时，检测具有最大幅度的水平同步信号与参考水平同步信号之间的时间差，并且所接收的电视信号的延迟时间为根据该时间差在可变延迟电路中进行控制。结果，具有最大幅度的水平同步信号的相位与参考水平同步信号的相位匹配。因此，当接收环境的变化导致重影的信号强度变得大于原始信号的信号强度，并且希望接收重影作为主信号代替原始信号时，可以从接收到原始信号接收到幽灵信号，而不会导致同步失真。

7. 发明授权

US4417279A FM Television signal receiving circuit 失效
标题翻译： FM电视信号接收电路
公开(公告)号：US4417279A
公开(公告)日：1983-11-22
申请号：US348016
申请日：1982-02-11
申请人： Keiro Shinkawa , Shigeo Matsuura , Chuichi Sodeyama , Masaki Noda , Masakazu Kondo
发明人： Keiro Shinkawa , Shigeo Matsuura , Chuichi Sodeyama , Masaki Noda , Masakazu Kondo
IPC分类号： H04N5/44 , H04N5/50 , H04N7/20
CPC分类号： H04N5/50
摘要： A receiving circuit for a television receiver for receiving an FM-modulated television signal is disclosed, in which the oscillation frequency of a local oscillator circuit is fine adjusted by a voltage of a sync signal of the FM-modulated television signal thereby to receive the television signal properly.
摘要翻译：公开了一种用于接收FM调制电视信号的电视接收机的接收电路，其中通过FM调制电视信号的同步信号的电压对本地振荡电路的振荡频率进行微调，从而接收电视信号正确。

8. 发明授权

US4211977A Mixer circuit arrangement 失效
标题翻译：混频器电路布置
公开(公告)号：US4211977A
公开(公告)日：1980-07-08
申请号：US768730
申请日：1977-02-15
申请人： Keiro Shinkawa , Hiroji Shoyama , Chuichi Sodeyama
发明人： Keiro Shinkawa , Hiroji Shoyama , Chuichi Sodeyama
IPC分类号： H01P1/203 , H01P3/08 , H03D7/18 , H03D9/06 , H04B1/26
CPC分类号： H01P3/085 , H03D7/18 , H03D9/06 , H03D9/0633 , H04B1/26 , H03D2200/0037
摘要： A mixer circuit employing a distributed constant circuit using a strip line includes a strip line for applying a high frequency signal and a local oscillation signal to a diode. The strip line is provided with a filter for exclusively blocking the local oscillation signal and a filter for exclusively blocking the high frequency signal. The strip line further includes a line which acts as a shortcircuit for an intermediate frequency signal and as an open impedance for the high frequency signal and the local oscillation signal.
摘要翻译：使用带状线的分布常数电路的混频器电路包括用于将高频信号和本地振荡信号施加到二极管的带状线。带状线设置有用于专门阻挡本地振荡信号的滤波器和用于专门阻挡高频信号的滤波器。带状线还包括用作中频信号的短路和作为高频信号和本地振荡信号的开路阻抗的线。

9. 发明授权

US4008438A Rat-race mixer circuit 失效
标题翻译：鼠赛混频器电路
公开(公告)号：US4008438A
公开(公告)日：1977-02-15
申请号：US626278
申请日：1975-10-28
申请人： Keiro Shinkawa , Chiuichi Sodeyama , Hirozi Shoyama
发明人： Keiro Shinkawa , Chiuichi Sodeyama , Hirozi Shoyama
IPC分类号： H01P5/22 , H01P5/12 , H03D7/02 , H03D7/14 , H03D9/06 , H04B1/26
CPC分类号： H03D9/0633 , H01P5/12 , H03D7/02 , H04B1/26 , H03D2200/0003 , H03D2200/0023 , H03D7/1408
摘要： A mixer circuit using a rat-race constituted by disposing microstrip lines on one surface of a substrate to provide a loop-shaped transmission line and four transmission lines connected to the loop. In the rat-race, two of the four transmission lines are disposed within the loop of the loop-shaped transmission line. A conductor penetrates the substrate at the center of the loop of the loop-shaped transmission line, and a pair of diodes are connected respectively between this conductor and the two transmission lines disposed within the loop so that an intermediate frequency signal obtained by subjecting a high frequency signal to frequency conversion can be derived from the conductor at the other surface side of the substrate.
摘要翻译：一种使用大鼠圈的混合器电路，其通过在基板的一个表面上设置微带线以提供环形传输线和连接到该环路的四条传输线。在大鼠赛道中，四条传输线中的两条被设置在环形传输线的环路内。导体穿过环形传输线环路中心的基片，并且一对二极管分别连接在该导体和设置在该环路内的两条传输线之间，使得通过使高频获得的中频信号可以从基板的另一表面侧的导体导出频率信号到频率转换。

10. 发明授权

US4713556A Frequency converter circuit 失效
标题翻译：变频器电路
公开(公告)号：US4713556A
公开(公告)日：1987-12-15
申请号：US798241
申请日：1985-11-08
申请人： Akio Yamamoto , Keiro Shinkawa
发明人： Akio Yamamoto , Keiro Shinkawa
IPC分类号： H03B5/12 , H03D7/00 , H03D7/12 , H03B19/00 , H03B5/00
CPC分类号： H03D7/12
摘要： A frequency converter circuit for converting a high-frequency signal into an intermediate-frequency signal includes a local oscillation with a first transistor having first, second and third terminals. A first terminal of the first transistor is grounded through a first inductance and a first capacitor, while a second capacitor is inserted between the other two terminals. A resonance circuit including variable-capacity diodes and a second inductance is connected to the second terminal through a third capacitor. The frequency converter circuit further includes a mixer formed with a second transistor having a base thereof connected to the grounded terminal of the first transistor and an emitter thereof grounded through impedances offering substantially no resistance to the intermediate-frequency signal. The emitter of this second transistor is connected to a high-frequency input terminal supplied with a high-frequency signal. The intermediate frequency output is taken from the collector of the second transistor, preferably through a low-pass filter.
摘要翻译：用于将高频信号转换为中频信号的频率转换器电路包括具有第一晶体管的本地振荡，第一晶体管具有第一，第二和第三端子。第一晶体管的第一端子通过第一电感和第一电容器接地，而第二电容器插入在其它两个端子之间。包括可变容量二极管和第二电感的谐振电路通过第三电容器连接到第二端子。变频器电路还包括形成有第二晶体管的混频器，第二晶体管的基极连接到第一晶体管的接地端子，其发射极通过阻抗基本上不对中频信号提供阻抗而接地。该第二晶体管的发射极连接到提供有高频信号的高频输入端。中频输出取自第二晶体管的集电极，优选地通过低通滤波器。

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