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

US4306200A Selective amplifier 失效
标题翻译：选择放大器
公开(公告)号：US4306200A
公开(公告)日：1981-12-15
申请号：US96068
申请日：1979-11-20
申请人： Kazuo Takayama
发明人： Kazuo Takayama
IPC分类号： H03F1/34 , H03F1/42 , H03F1/44 , H03F1/56 , H03F3/189 , H03F3/191 , H03F3/193 , H03F3/195 , H03H11/04 , H04B1/06 , H04B1/18
CPC分类号： H03F3/191 , H03F1/42 , H03F1/565 , H03F3/1935 , H03F3/195
摘要： A selective amplifier whose gain characteristic is rendered approximately uniform over the entire frequency band to be amplified with no degradation in the S/N ratio. The amplifier consists of a band-pass filter and an amplifying element, in which a resistor for eliminating the ripples in the transmission characteristic of the filter is constituted with a feed back resistor for the amplifying element, the coil for the parallel resonance circuit in the filter is constituted as an auto-transformer and the capacitor in the serial resonance circuit of said filter is formed with the capacitance of a capacitive antenna respectively to thereby improve the S/N ratio. The amplifier is suitable to be used at the top of the high frequency stages in a radio receiver.
摘要翻译：一种选择放大器，其增益特性在整个频带上呈现大致均匀的放大，S / N比没有降低。放大器由带通滤波器和放大元件组成，其中用于消除滤波器的传输特性中的波纹的电阻器由用于放大元件的反馈电阻器构成，用于并联谐振电路的线圈滤波器构成为自动变压器，并且所述滤波器的串联谐振电路中的电容器分别由电容天线的电容形成，从而提高S / N比。放大器适用于无线电接收机中高频级的顶部。

12. 发明授权

US08498597B2 Broadcast receiving apparatus and method of detecting noise components performed by broadcast receiving apparatus 有权
标题翻译：广播接收装置以及由广播接收装置执行的噪声分量的检测方法
公开(公告)号：US08498597B2
公开(公告)日：2013-07-30
申请号：US13030791
申请日：2011-02-18
申请人： Kohta Miyagi , Kazuo Takayama , Keita Taniguchi
发明人： Kohta Miyagi , Kazuo Takayama , Keita Taniguchi
IPC分类号： H04B17/00
CPC分类号： H03G3/345
摘要： To provide a broadcast receiving apparatus including an AM detector, an AM noise detector, an FM detector, an FM noise-level detector, and a threshold control unit. The AM detector performs AM detection on a broadcast signal in airwaves received by a receiving antenna that receives incoming airwaves to acquire an AM detection signal. The AM noise detector detects a signal portion, in which the AM detection signal exceeds an AM noise threshold, as an AM noise component. The FM detector performs FM detection on the broadcast signal to acquire an FM detection signal. The FM noise-level detector detects an FM noise level of the FM detection signal. When the FM noise-level detector detects the FM noise level of the FM detection signal, the threshold control unit changes setting of the AM noise threshold in the AM noise detector based on the FM noise level of the FM detection signal.
摘要翻译：提供包括AM检测器，AM噪声检测器，FM检测器，FM噪声电平检测器和阈值控制单元的广播接收设备。 AM检测器对由接收进入的无线电波的接收天线接收的无线电波中的广播信号执行AM检测，以获取AM检测信号。 AM噪声检测器检测AM检测信号超过AM噪声阈值的信号部分作为AM噪声分量。 FM检测器对广播信号执行FM检测以获取FM检测信号。 FM噪声电平检测器检测FM检测信号的FM噪声电平。当FM噪声电平检测器检测到FM检测信号的FM噪声电平时，阈值控制单元基于FM检测信号的FM噪声电平改变AM噪声检测器中AM噪声阈值的设置。

13. 发明申请

US20090295636A1 Receiving Apparatus, Signal Processing Circuit, and Receiving System 审中-公开
标题翻译：接收装置，信号处理电路和接收系统
公开(公告)号：US20090295636A1
公开(公告)日：2009-12-03
申请号：US11887337
申请日：2006-03-31
申请人： Isao Taniguchi , Kiyotaka Nakagawa , Kazuo Takayama
发明人： Isao Taniguchi , Kiyotaka Nakagawa , Kazuo Takayama
IPC分类号： G01S3/28
CPC分类号： H04B7/0894 , H04B7/0825 , H04B7/084 , H04B7/0857 , H04B7/0897
摘要： An object of the invention is to provide a receiving apparatus in which multipath noise can be reduced. In a diversity receiving apparatus (20), a delay amount of phase shifters (24a, 24b) is changed to reduce a multipath level (Mdc) detected by a multipath detecting unit (33). The multipath detecting unit (33), signal processing parts (23a, 23b), and a combiner (25) are provided to obtain a received signal based on received outputs of a plurality of antennas (21a, 21b) when receiving a radio wave signal modulated by a modulating method, such as an FM, in which no change in amplitude is produced. Therefore, the radio wave signal can be received in a better condition than when received using a single antenna. The multipath detecting unit (33) detects a change in amplitude of the received signal as the multipath level (Mdc). A signal combining is achieved by changing the delay amount of the phase shifters (24a, 24b) according to a predetermined combining condition, so that the multipath level (Mdc) detected by the multipath detecting unit (33) is reduced.
摘要翻译：本发明的目的是提供一种可以减少多径噪声的接收装置。在分集接收装置（20）中，改变移相器（24a，24b）的延迟量，以减少由多径检测单元（33）检测的多径电平（Mdc）。提供多路径检测单元（33），信号处理部分（23a，23b）和组合器（25），以在接收到无线电波信号时基于多个天线（21a，21b）的接收输出获得接收信号通过调制方法调制，如FM，其中不产生振幅变化。因此，无线电波信号可以比使用单个天线接收的情况更好地接收。多径检测单元（33）检测作为多路径电平（Mdc）的接收信号的幅度变化。通过根据预定的组合条件改变移相器（24a，24b）的延迟量来实现信号组合，使得由多路径检测单元（33）检测的多径电平（Mdc）减小。

14. 发明申请

US20090202024A1 Reducing Apparatus and Method, and Receiving Apparatus 审中-公开
标题翻译：减少装置和方法以及接收装置
公开(公告)号：US20090202024A1
公开(公告)日：2009-08-13
申请号：US11887343
申请日：2006-03-29
申请人： Yoshiaki Inoue , Manabu Horimoto , Isao Taniguchi , Kazuo Takayama
发明人： Yoshiaki Inoue , Manabu Horimoto , Isao Taniguchi , Kazuo Takayama
IPC分类号： H04B1/10
CPC分类号： H04B1/1081 , H04B1/1661 , H04B7/0602 , H04L25/03019
摘要： An object of the invention is to allow receiving a radio wave signal in a comfortable manner by overcoming defects in technique and performance according to the related art in reducing a multipath noise by use of an adaptive digital filter. In a multipath noise reducing apparatus (20), an A/D converter (24) converts a received signal from an analog signal to a digital signal, and an ADF (21) carries out a digital signal processing to reduce the multipath noise. At a time of determination of an overmodulation by an overmodulation determining unit (22), an operation of the ADF (21) is turned off to prevent deterioration in a distortion property. Therefore, the multipath noise reduction and prevention of the corresponding deterioration in the distortion property at a time of the overmodulation can be achieved at the same time.
摘要翻译：本发明的目的是通过克服现有技术中的技术和性能上的缺陷，通过使用自适应数字滤波器来减少多路径噪声，允许以舒适的方式接收无线电波信号。在多径噪声降低装置（20）中，A / D转换器（24）将来自模拟信号的接收信号转换为数字信号，并且ADF（21）进行数字信号处理以减少多路径噪声。在确定过调制确定单元（22）的过调制时，ADF（21）的操作被关闭以防止失真特性的劣化。因此，可以同时实现多路径噪声降低和防止过调制时的失真特性的相应劣化。

15. 发明授权

US4942622A Mobile radio-receiver system with improved reproduction characteristics of reception signal having noise superimposed thereon 失效
标题翻译：移动无线电接收机系统，其具有叠加在其上的噪声的接收信号的再现特性
公开(公告)号：US4942622A
公开(公告)日：1990-07-17
申请号：US218231
申请日：1988-07-13
申请人： Kazuo Takayama , Hidefumi Fuse
发明人： Kazuo Takayama , Hidefumi Fuse
IPC分类号： H04B1/10 , H04B1/16 , H04B7/08 , H04B7/26
CPC分类号： H04B7/0805
摘要： Disclosed is a mobile radio-receiver system built-into an FM radio-receiver set installed in a vehicle, wherein a reproduction characteristic of a reception signal, such as a sound signal, having noise superimposed thereon is improved. The mobile radio-receiver system includes a space diversity unit which receives two reception signals and selects one reception signal on which noise is smaller than on the other reception signal, and a signal prediction unit which ignores the selected signal for a predetermined time in which large noise remains in the selected signal, and predicts a reception signal for the ignored selected signal for the predetermined time, so that a quality of a reproduction sound from the FM radio-receiver set is greatly improved.
摘要翻译：公开了一种内置于车载FM收音机的移动无线电接收机系统，其中叠加有噪声的诸如声音信号的接收信号的再现特性得到改善。移动无线电接收机系统包括：空间分集单元，其接收两个接收信号，并选择一个接收信号，其中噪声小于另一个接收信号;以及信号预测单元，其忽略所选信号预定时间，其中大于噪声保持在所选择的信号中，并且在预定时间内预测所忽略的选择信号的接收信号，从而大大提高来自FM收音机组的再现声音的质量。

16. 发明授权

US4910799A Noise reduction apparatus 失效
标题翻译：降噪装置
公开(公告)号：US4910799A
公开(公告)日：1990-03-20
申请号：US406862
申请日：1989-09-12
申请人： Kazuo Takayama
发明人： Kazuo Takayama
IPC分类号： H03G3/34 , H03G5/00 , H04B1/10
CPC分类号： H03G5/00 , H03G3/34 , H04B1/1027 , H04B1/1081
摘要： A noise reduction apparatus in which an input signal is supplied to a first signal path (2) including a variable low-pass filter (2) and a second signal path (1), a control circuit (4) control is such that a cut-off frequency of the variable low-pass filter (2) is varied in accordance with a frequency of the input signal S(1), and an output signal is obtained from the first signal path when noise is generated and from the second signal path when noise is not generated.

17. 发明授权

US4865932A Electric cells and process for making the same 失效
标题翻译：电池和制作相同的工艺
公开(公告)号：US4865932A
公开(公告)日：1989-09-12
申请号：US192932
申请日：1988-05-12
申请人： Yoshitomo Masuda , Isamu Shinoda , Masao Ogawa , Toyoo Harada , Takao Ogino , Kazuo Takayama , Tadaaki Miyazaki , Takahiro Kawagoe
发明人： Yoshitomo Masuda , Isamu Shinoda , Masao Ogawa , Toyoo Harada , Takao Ogino , Kazuo Takayama , Tadaaki Miyazaki , Takahiro Kawagoe
IPC分类号： H01M2/02 , H01M4/13 , H01M10/05
CPC分类号： H01M10/05 , H01M2/0222 , H01M4/13 , Y10T29/49108
摘要： An electric cell comprising a positive electrode, a negative electrode, and an electrolyte containing a lithium salt is provided wherein the negative electrode has a two-layer structure of a lithium-aluminum alloy layer and an aluminum layer. The cell is fabricated by placing a positive electrode, a negative electrode, and an electrolyte in a cell container comprising positive and negative electrode casings, and forming a seal between the positive and negative electrode casings. The negative electrode is electrochemically formed in situ in the cell container from a lithium-clad aluminum substrate.
摘要翻译：提供一种包含正极，负极和含有锂盐的电解质的电池，其中所述负极具有锂 - 铝合金层和铝层的两层结构。通过将正极，负极和电解质放置在包括正极和负极壳体的电池容器中并在正极壳体和负极壳体之间形成密封来制造电池。负极由锂包铝基板在电池容器内原位电化学形成。

18. 发明授权

US4841197A Double-chamber ion source 失效
标题翻译：双室离子源
公开(公告)号：US4841197A
公开(公告)日：1989-06-20
申请号：US55804
申请日：1987-05-27
申请人： Kazuo Takayama , Eiji Yabe , Kenichi Takagi , Ryota Fukui , Riichi Kikuchi
发明人： Kazuo Takayama , Eiji Yabe , Kenichi Takagi , Ryota Fukui , Riichi Kikuchi
IPC分类号： H01J27/08 , H01J37/08
CPC分类号： H01J27/08 , H01J37/08
摘要： Ion source including an electric discharge chamber body divided by a partition, having an anode electrode therein, into a main discharge chamber and a subsidiary discharge chamber. The subsidiary discharge chamber has a filament mounted therein aligned with at least one small opening through the partition wall and the anode electrode. An inert gas opening is provided into the subsidiary discharge chamber. An electric discharge gas opening and an ion outlet opening are provided to the main discharge chamber. Magnets are provided outside of the chamber body for creating a magnetic field extending nearly along an axis of the at least one small opening in the anode electrode.
摘要翻译：离子源包括由其中具有阳极电极的隔板分隔成主放电室和辅助放电室的放电室主体。辅助排放室具有安装在其中的细丝，其与通过分隔壁和阳极电极的至少一个小开口对准。辅助排气室设有惰性气体开口。放电气体开口和离子出口开口设置到主放电室。磁体设置在室主体的外部，用于产生几乎沿着阳极电极中的至少一个小开口的轴延伸的磁场。

19. 发明申请

US20080298519A1 Receiver Device 审中-公开
标题翻译：接收设备
公开(公告)号：US20080298519A1
公开(公告)日：2008-12-04
申请号：US12085026
申请日：2006-11-20
申请人： Koichi Tsutsui , Kazuo Takayama , Masaaki Nagami , Takeshi Miyano
发明人： Koichi Tsutsui , Kazuo Takayama , Masaaki Nagami , Takeshi Miyano
IPC分类号： H04L27/08
CPC分类号： H04B1/08 , H01Q3/30 , H01Q21/0025
摘要： The enclosure of the receiver device is divided into an antenna vicinity enclosure 1 and a demodulation unit enclosure 2, which are connected by a single transmission cable. By disposing the antenna vicinity enclosure 1 in the vicinity of the antenna, the high frequency feeder cable drawn from the antenna to the antenna vicinity enclosure 1 can be shortened. The effect of pulse noise and high frequency noise picked up by the conventional feeder cable can therefore be reduced. Furthermore, the length of the feeder cables in a quantity corresponding to the number of antennas is then reduced and the wiring space for the feeder cable can be reduced. The demodulation unit enclosure 2 is disposed spaced apart from the antenna, and the wiring space for the transmission cable can be greatly reduced in comparison with a case where a plurality of feeder cables are wired in the wiring space.
摘要翻译：接收装置的外壳分为天线附近的外壳1和解调单元外壳2，它们通过单个传输电缆连接。通过将天线附近机壳1配置在天线附近，能够缩短从天线向天线附近机壳1拉出的高频馈电电缆。因此，可以减少传统馈线电缆拾取的脉冲噪声和高频噪声的影响。此外，对应于天线数量的馈电电缆的长度被减小，并且可以减少馈线电缆的布线空间。解调单元外壳2与天线间隔开设置，与布线空间中多个馈电电缆布线的情况相比，传输电缆的布线空间可大大降低。

20. 发明授权

US07277684B2 Antenna amplifier and shared antenna amplifier 失效
标题翻译：天线放大器和共享天线放大器
公开(公告)号：US07277684B2
公开(公告)日：2007-10-02
申请号：US10422817
申请日：2003-04-25
申请人： Naoki Kushima , Kazuo Takayama , Tetsuharu Imoto , Kazushige Ogino , Hirokazu Matsunaga , Nobuyoshi Tateishi
发明人： Naoki Kushima , Kazuo Takayama , Tetsuharu Imoto , Kazushige Ogino , Hirokazu Matsunaga , Nobuyoshi Tateishi
IPC分类号： H04B7/00
CPC分类号： H03G3/3036 , H04B1/109 , H04B1/18
摘要： An object of the invention is to receive a weak signal with high sensitivity and reduce distortion and signal suppression when a strong interference signal exists. When a high-frequency signal received by an antenna is to be amplified by an antenna amplifier and when an interference wave of high field strength exists, a switch circuit is switched by an output switchover circuit from the output of an amplifier to a through-circuit. The through-circuit guides the high-frequency signal, directly to the output side without passing through the amplifier. When the switching operation of the switch circuit is performed based on low-frequency components which are highly correlated with distortion components due to intermodulation, the switching operation can be performed more adequately. Noises can be reduced by performing a smoothing process on the switching operation, and the use of an inverting amplifier can prevent occurrence of oscillation.
摘要翻译：本发明的目的是在存在强干扰信号时接收高灵敏度的弱信号并减少失真和信号抑制。当由天线接收到的高频信号要由天线放大器放大时，并且当存在高场强的干扰波时，开关电路通过输出切换电路从放大器的输出切换到贯通电路。通过电路将高频信号直接引导到输出侧，而不通过放大器。当基于由互调产生的与失真分量高度相关的低频分量执行开关电路的切换操作时，可以更充分地执行切换操作。通过对开关动作进行平滑处理，能够抑制噪声，并且使用反相放大器可以防止发生振荡。

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