专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06779195B2 Signal processing apparatus and signal receiving apparatus 失效
标题翻译：信号处理装置和信号接收装置
公开(公告)号：US06779195B2
公开(公告)日：2004-08-17
申请号：US09326954
申请日：1999-06-07
申请人： Katsumi Oishi , Masakatsu Toyoshima , Keiji Fukuzawa
发明人： Katsumi Oishi , Masakatsu Toyoshima , Keiji Fukuzawa
IPC分类号： H04N720
CPC分类号： H04N21/4363 , H04L1/004 , H04N21/235 , H04N21/434 , H04N21/4345 , H04N21/435 , H04N21/4532 , H04N21/6118 , H04N21/6143
摘要： The MPEG2TS packet S3 as the digital broadcast data is obtained from the ECC decoder. The NIT detecting circuit detects NIT from this packet S3, changes the transmitting frequency information and deletes the information (service information) of the program to be limited for viewing, thereby to obtain the table NITb. The NIT replacing circuit detects NIT from the packet S3 and replaces it to the table NITb, thereby to obtain the MPEG2TS packet S4 as the digital broadcast data in CATV. The digital broadcast signal BS1 for CATV can be obtained by executing the error correction code adding process, modulating process and frequency-converting process to the packet S4. The receiving apparatus for receiving the predetermined program on the basis of the program information of NIT can no longer receive the program in relation to the program information deleted by NIT.
摘要翻译：从ECC解码器获得作为数字广播数据的MPEG2TS数据包S3。 NIT检测电路从该分组S3检测NIT，改变发送频度信息并删除要限制的观看节目的信息（服务信息），从而获得表NITb。 NIT替换电路从分组S3检测NIT，并将其替换为表NITb，从而获得作为CATV中的数字广播数据的MPEG2TS分组S4。用于CATV的数字广播信号BS1可以通过对分组S4执行纠错码添加处理，调制处理和频率转换处理来获得。基于NIT的节目信息接收预定节目的接收装置不能再接收与由NIT删除的节目信息有关的节目。

2. 发明授权

US07779442B1 Information distribution system 失效
标题翻译：信息分发系统
公开(公告)号：US07779442B1
公开(公告)日：2010-08-17
申请号：US09623780
申请日：1999-09-30
申请人： Keiji Fukuzawa , Masakatsu Toyoshima , Katsumi Ohishi , Kenji Inose
发明人： Keiji Fukuzawa , Masakatsu Toyoshima , Katsumi Ohishi , Kenji Inose
IPC分类号： G06F3/00 , G06F13/00 , H04N5/445
CPC分类号： H04N21/435 , H04N7/10 , H04N7/17354 , H04N21/235 , H04N21/23608 , H04N21/2362 , H04N21/4344 , H04N21/4345 , H04N21/4432
摘要： This invention relates to an information delivery system and method, an information transmission apparatus and method, and an information receiving apparatus and method for delivering a digital multi-channel service signal through a satellite and a cable network. A QPSK demodulation circuit demodulates an inputted TS and outputs it to an error correction circuit. The error correction circuit corrects the inputted signal and outputs it to a network information (NIT) conversion circuit. The NIT conversion circuit replaces the NIT for CS waves with NIT for cable TV and outputs it to a QAM demodulation circuit. The QAM demodulation circuit demodulates the inputted signal and pouts it to a frequency conversion circuit. The frequency conversion circuit converts the frequency of the inputted signal into a predetermined value and outputs the signal to a signal mixer.
摘要翻译：信息传递系统和方法，信息传输装置和方法以及用于通过卫星和有线网络发送数字多频道业务信号的信息接收装置和方法。 QPSK解调电路对输入的TS进行解调并将其输出到纠错电路。误差校正电路校正输入信号并将其输出到网络信息（NIT）转换电路。 NIT转换电路用NIT替代用于有线电视的CS波的NIT，并将其输出到QAM解调电路。 QAM解调电路对输入的信号进行解调并将其截止到频率转换电路。频率转换电路将输入信号的频率转换为预定值，并将该信号输出到信号混合器。

3. 发明授权

US07263713B2 Television signal distributor apparatus, receiver apparatus, television signal transmission system and method 失效
标题翻译：电视信号分配装置，接收装置，电视信号传输系统及方法
公开(公告)号：US07263713B2
公开(公告)日：2007-08-28
申请号：US09791705
申请日：2001-02-26
申请人： Katsumi Oishi , Keiji Fukuzawa , Kenji Inose
发明人： Katsumi Oishi , Keiji Fukuzawa , Kenji Inose
IPC分类号： H04N7/173
CPC分类号： H04N5/4446 , H04H20/26 , H04H20/74 , H04H20/76 , H04H40/18 , H04H40/90 , H04N5/40 , H04N5/4401 , H04N7/106 , H04N7/20 , H04N21/4345 , H04N21/4382 , H04N21/4622 , H04N21/6118 , H04N21/6143
摘要： In a television signal transmission system, CS broadcasting signals received via a master antenna are converted into intermediate frequency signals in an LNB (Low Noise Block Down Converter). The CS intermediate frequency signals then undergo conversion of the modulation format, for example, from QPSK into 64-QAM, so that CS broadcasting signals from each transponder, having a bandwidth of, for example, 27 MHz, are accommodated in a narrower bandwidth, for example, 6 MHz, which is equivalent to one channel of terrestrial broadcasting services. Then, the signals accommodated in the narrower bandwidth is frequency-shifted into a vacant frequency band in the VHF band or the UHF band. Accordingly, the CS signals accommodated in the narrower band and frequency-shifted into the vacant band are multiplexed with terrestrial broadcasting signals in the VHF and UHF bands and BS intermediate frequency signals so that all these signals are delivered to each household via a single cable.
摘要翻译：在电视信号传输系统中，通过主天线接收的CS广播信号在LNB（低噪声块降频转换器）中被转换成中频信号。然后，CS中频信号例如从QPSK转换成64-QAM，使得具有例如27MHz的带宽的来自每个转发器的CS广播信号被容纳在较窄的带宽中，例如6MHz，相当于一个频道的地面广播业务。然后，容纳在较窄带宽中的信号被频移到VHF频带或UHF频带中的空闲频带。因此，容纳在较窄频带并频移到空闲频带中的CS信号与VHF和UHF频带中的地面广播信号以及BS中频信号进行复用，使得所有这些信号通过单个电缆传送到每个家庭。

4. 发明授权

US5933807A Screen control apparatus and screen control method 失效
标题翻译：屏幕控制装置和屏幕控制方法
公开(公告)号：US5933807A
公开(公告)日：1999-08-03
申请号：US573007
申请日：1995-12-15
申请人： Keiji Fukuzawa
发明人： Keiji Fukuzawa
IPC分类号： G06F3/01 , G06F3/16 , G09G5/00 , G09G5/08 , G09G5/38 , G10L15/00 , G10L15/22 , G10L5/00
CPC分类号： G10L15/22 , G06F3/167
摘要： A screen control apparatus and a screen control method enabling an operator to instruct a display apparatus both of a type and an amount of processing in an intuitive and an easy way by voice to provide good human interfacing. The screen control apparatus comprises a sound input means for receiving voice instruction on a screen and generating a sound signal, a sound recognition means for recognizing sound signal, a sound continuation detection means for detecting the sound continuation of the sound signal, and a screen processing means for processing said picture on the screen in accordance with the recognized sound signal for a time of the detected sound continuation. The screen control method includes the steps of receiving voice for instructing a processing a picture on a screen and generating a sound signal, extracting a sound feature of the sound signal, discriminating the sound signal in accordance with the extracted sound feature to generate a recognized sound signal, detecting the sound continuation of the sound signal, and processing displayed picture on the screen in accordance with said recognized sound signal by a time of said detected sound continuation.
摘要翻译：一种屏幕控制装置和屏幕控制方法，其使得操作者能够以直观和简单的方式通过语音来指示显示装置的类型和量的处理，以提供良好的人机接口。屏幕控制装置包括用于在屏幕上接收语音指令并产生声音信号的声音输入装置，用于识别声音信号的声音识别装置，用于检测声音信号的声音继续的声音继续检测装置以及屏幕处理用于在检测到的声音延续的时间根据识别的声音信号在屏幕上处理所述图像的装置。屏幕控制方法包括以下步骤：接收用于指示在屏幕上处理图像并产生声音信号的声音，提取声音信号的声音特征，根据所提取的声音特征来识别声音信号以产生识别的声音信号，检测声音信号的声音继续，以及在所述检测到的声音延续的时间，根据所识别的声音信号在屏幕上处理显示的图像。

5. 发明授权

US5276410A Circular to linear polarization converter 失效
标题翻译：圆形到线性极化转换器
公开(公告)号：US5276410A
公开(公告)日：1994-01-04
申请号：US892050
申请日：1992-06-02
申请人： Keiji Fukuzawa , Yoshikazu Yoshida
发明人： Keiji Fukuzawa , Yoshikazu Yoshida
IPC分类号： H01P1/17 , H01Q13/02 , H01Q13/08 , H01Q15/24 , H01Q21/24 , H01P1/16 , H01P5/02
CPC分类号： H01Q15/244 , H01Q13/0241
摘要： A converter for converting circularly polarized waves in a round waveguide into linearly polarized waves in a rectangular waveguide has two probes and a transmission line pattern all of which are formed of metal foil on a thin dielectric film board. The board is flexible and extends across the open ends of the two waveguides. The first probe has a square shape and the transmission line has two conductor arms connected to adjacent sides of the square. The other ends of the conductor arms are connected to the second probe with an impedance matching resistor formed on the film board between the two arms. One conductor arm is one-quarter wavelength longer than the other to convert from circularly polarized waveguide transmission to microstrip transmission.
摘要翻译：用于将圆形波导中的圆偏振波转换为矩形波导中的线偏振波的A转换器具有两个探针和传输线图案，它们全都由薄的介电膜板上的金属箔形成。板是柔性的，并且延伸穿过两个波导的开口端。第一个探针具有正方形形状，传输线具有连接到正方形相邻两侧的两个导体臂。导体臂的另一端通过在两个臂之间的薄膜板上形成的阻抗匹配电阻器连接到第二探头。一个导体臂比另一个导体臂长四分之一波长，从圆偏振波导传输转换成微带传输。

6. 发明授权

US4914449A Microwave antenna structure with intergral radome and rear cover 失效
标题翻译：微波天线结构，内置天线罩和后盖
公开(公告)号：US4914449A
公开(公告)日：1990-04-03
申请号：US277313
申请日：1988-11-29
申请人： Keiji Fukuzawa , Takashi Otsuka , Shinobu Tsurumaru , Junichi Kajikuri , Fumihiro Ito
发明人： Keiji Fukuzawa , Takashi Otsuka , Shinobu Tsurumaru , Junichi Kajikuri , Fumihiro Ito
IPC分类号： H01Q21/06 , H01Q1/38 , H01Q1/40 , H01Q1/42 , H01Q13/08 , H01Q21/00
CPC分类号： H01Q21/0087 , H01Q1/40 , H01Q21/0081
摘要： A suspended line feed type planar antenna is arranged with a number of antenna elements formed on a film-shaped substrate, and the film-shaped substrate is sandwiched between a plastic radome and a plastic rear cover, a conductive surface is plated on the rear surface of the plastic radome at its portion except the portions opposing the antenna elements and/or a conductive surface is plated on the whole front surface of the rear cover. The conductive surfaces and the antenna elements constitute resonance type printed path radiators, whereby the planar antenna of the invention can be simplified in construction and reduced in cost, thickness and weight, and the planar antenna of the invention can be increased in productivity and reliability.
摘要翻译：悬挂的线馈式平面天线被布置成在薄膜状基板上形成有多个天线元件，并且将薄膜状基板夹在塑料天线罩和塑料后盖之间，导电表面电镀在后表面除了与天线元件相对的部分之外的塑料天线罩的部分和/或导电表面被镀在后盖的整个前表面上。导电表面和天线元件构成共振型印刷路径散热器，由此可以简化本发明的平面天线，降低成本，厚度和重量，并且可以提高本发明的平面天线的生产率和可靠性。

7. 发明授权

US07760148B2 Radio communication system and communication method therefor 失效
标题翻译：无线电通信系统及其通信方法
公开(公告)号：US07760148B2
公开(公告)日：2010-07-20
申请号：US12249590
申请日：2008-10-10
申请人： Kenichi Kawasaki , Keiji Fukuzawa
发明人： Kenichi Kawasaki , Keiji Fukuzawa
IPC分类号： H01Q1/24
CPC分类号： H01Q21/24 , H01Q1/2258
摘要： A radio communication system for performing radio communication between a first antenna and a second antenna is provided. Each of the first and second antennas includes a plurality of antenna elements for forming polarization planes orthogonal to each other in three-axial directions. The first and second antennas are arranged so that the polarization planes formed by the antenna elements of the first antenna are respectively opposed to the polarization planes formed by the antenna elements of the second antenna. The communication between the first antenna and the second antenna is performed by using three independent polarized waves.
摘要翻译：提供了一种用于在第一天线和第二天线之间执行无线电通信的无线电通信系统。第一和第二天线中的每一个包括用于形成在三轴方向上彼此正交的偏振平面的多个天线元件。第一和第二天线被布置成使得由第一天线的天线元件形成的极化平面分别与由第二天线的天线元件形成的极化平面相对。通过使用三个独立的极化波来执行第一天线和第二天线之间的通信。

8. 发明授权

US4792810A Microwave antenna 失效
标题翻译：微波天线
公开(公告)号：US4792810A
公开(公告)日：1988-12-20
申请号：US888117
申请日：1986-07-22
申请人： Keiji Fukuzawa , Fumihiro Ito , Shinobu Tsurumaru
发明人： Keiji Fukuzawa , Fumihiro Ito , Shinobu Tsurumaru
IPC分类号： H01Q13/18 , H01Q21/00 , H01Q21/06 , H01Q21/24 , H01Q1/38 , H01Q13/08
CPC分类号： H01Q21/0081 , H01Q13/18 , H01Q21/064 , H01Q21/24
摘要： A planar antenna for circular polarized microwaves incorporates a substrate sandwiched between conductive layers having a plurality of openings arranged in a rectangular array, with a pair of perpendicular excitation probes supported on the substrate in alignment with each opening, and a feed circuit for interconnecting the excitation probes in a predetermined phase relationship. Two additional conductive elements may be supported on the substrate in alignment with the excitation probes to provide improved impedance matching. The feed circuit may incorporate a pair of quarter wavelength feed lines connected to the excitation probes, with a resistance element interconnected between the feed lines. The feed point of the antenna may be located near the center of the array, occupying a position normally occupied by one of the pairs of excitation probes.
摘要翻译：用于圆偏振微波的平面天线包括夹在具有布置成矩形阵列的多个开口的导电层之间的衬底，一对垂直的激发探针被支撑在与每个开口对准的衬底上，馈电电路用于互连激发以预定的相位关系探测。两个额外的导电元件可以被支撑在衬底上，与激发探针对准，以提供改进的阻抗匹配。馈电电路可以包括连接到激发探针的一对四分之一波长馈电线，电阻元件在馈电线之间互连。天线的馈电点可以位于阵列的中心附近，占据一对激励探针正常占据的位置。

9. 发明授权

US07142812B1 Wireless transmission system 有权
标题翻译：无线传输系统
公开(公告)号：US07142812B1
公开(公告)日：2006-11-28
申请号：US09593178
申请日：2000-06-13
申请人： Veselin Brankovic , Dragan Krupezevic , Mohamed Ratni , Hamid Amir-Alikhani , Kenichi Kawasaki , Kazuji Sasaki , Keiji Fukuzawa
发明人： Veselin Brankovic , Dragan Krupezevic , Mohamed Ratni , Hamid Amir-Alikhani , Kenichi Kawasaki , Kazuji Sasaki , Keiji Fukuzawa
IPC分类号： H04B7/00
CPC分类号： H04W4/00 , H01Q1/007 , H01Q1/2291 , H04W16/24 , H04W84/10 , H04W88/02 , H04W88/14
摘要： A wireless transmission system operating in a 60 GHz frequency range comprises fixed hubs (public download server) (2) and mobile terminals (1). The fixed hubs (2) have antennas (4) with a wide angle beam shape. The mobile terminals (1) have antennas (3) with a narrow angle beam shape. The fixed hubs (public download server) (2) are connected by means of a connection line (5) to an information source such as a network backbone or a main server.
摘要翻译：在60GHz频率范围内工作的无线传输系统包括固定集线器（公共下载服务器）（2）和移动终端（1）。固定轮毂（2）具有广角束形状的天线（4）。移动终端（1）具有窄角度波束形状的天线（3）。固定集线器（公共下载服务器）（2）通过连接线（5）连接到诸如网络主干或主服务器的信息源。

10. 发明授权

US5675348A Feedome, primary radiator, and antenna for microwave 失效
标题翻译：馈线，初级辐射器和微波天线
公开(公告)号：US5675348A
公开(公告)日：1997-10-07
申请号：US649053
申请日：1996-05-16
申请人： Yasuhiro Okada , Keiji Fukuzawa
发明人： Yasuhiro Okada , Keiji Fukuzawa
IPC分类号： H01Q19/09 , H01Q1/40 , H01Q1/42 , H01Q13/02
CPC分类号： H01Q1/42
摘要： A feedome is disposed on the side of an opening of a radiator main body, and comprises a dielectric board having a thickness sufficiently smaller than the wavelength of radio wave, and a dielectric protrusion fixedly mounted to the dielectric board substantially in the center of the inner side thereof, and having a height approximately equal to integral number times (1/2).multidot..lambda. where the wavelength of radio wave is .lambda., and a diameter approximately equal to the height of the dielectric protrusion.
摘要翻译：馈送器设置在散热器主体的开口侧，并且包括具有足够小于无线电波长的厚度的电介质板，以及基本上位于内部的中心固定地安装到电介质板的电介质突起并且具有高度近似等于无线电波长为λ的整数倍数（+ E，fra 1/2 + EE）×λ，以及大致等于电介质突起的高度的直径。

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