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1. 发明专利

JP2008271403A Pll frequency synthesizer, receiver, and transmitter 审中-公开
标题翻译： PLL频率合成器，接收器和发送器
公开(公告)号：JP2008271403A
公开(公告)日：2008-11-06
申请号：JP2007114433
申请日：2007-04-24
申请人： Maspro Denkoh Corp , Nippon Hoso Kyokai , マスプロ電工株式会社 , 日本放送協会
发明人： YOSHIMI TOMOFUMI , ISHII MAKOTO , KUSHIRO YUICHIRO , KANAMORI TAKAKO , YOSHIDA KEISUKE , MIZUTANI HIROKAZU
IPC分类号： H03L7/093 , H04B1/04 , H04B1/26
摘要： PROBLEM TO BE SOLVED: To achieve a PLL frequency synthesizer capable of changing an oscillation frequency in a wide range without worsening phase noise with a simple circuit configuration without increasing a device size. SOLUTION: An oscillator 10 is composed of a PLL frequency synthesizer capable of switching an oscillation frequency by changing the frequency-division number of a frequency divider 18 that frequency-divides output from a VCO 12. When an oscillation frequency is changed, filter characteristics of a loop filter 30 forming a PLL loop deviate from proper values. Accordingly, it is devised to provide a feedback resister R2, consisting of a variable resistance element composed of a PIN diode, in an active filter 32 constituting the loop filter 30. A resistance value of the feedback resister R2 is controlled corresponding to the frequency-division number N (that is, an oscillation frequency) of the frequency divider 18. As a result, the filter characteristics of the loop filter 30 always have optimum values so as to prevent phase noise from deteriorating caused by a change in oscillation frequency. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了实现能够在不增加设备尺寸的情况下以简单的电路配置在不恶化相位噪声的情况下在宽范围内改变振荡频率的PLL频率合成器。解决方案：振荡器10由PLL频率合成器构成，该PLL频率合成器能够通过改变对VCO12输出进行分频的分频器18的分频数来切换振荡频率。当振荡频率改变时，形成PLL环路的环路滤波器30的滤波器特性偏离适当的值。因此，设计为在构成环路滤波器30的有源滤波器32中提供由由PIN二极管组成的可变电阻元件构成的反馈电阻R2。反馈电阻R2的电阻值对应于频率 - 除法器18的分频数N（即振荡频率）。结果，环路滤波器30的滤波特性总是具有最佳值，以防止由振荡频率的变化引起的相位噪声恶化。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2007274517A Retransmission unit 审中-公开
标题翻译：恢复单元
公开(公告)号：JP2007274517A
公开(公告)日：2007-10-18
申请号：JP2006099533
申请日：2006-03-31
申请人： Maspro Denkoh Corp , マスプロ電工株式会社
发明人： SUGIURA TOSHIHIRO , YOSHIDA KEISUKE
IPC分类号： H04N5/38 , H04B7/15 , H04H20/08 , H04H20/67 , H04N5/44 , H04N7/10 , H04N21/437 , H04N21/438
摘要： PROBLEM TO BE SOLVED: To provide a retransmission unit which uses the same frequency, and is inexpensive and high in performance and flexibility.
SOLUTION: The retransmission unit includes a first frequency converting means 11 of frequency-converting a television signal applied to an input terminal to an intermediate frequency, a first filter means 12 of selectively passing a desired television signal component of the output of the first frequency converting means, and a second frequency converting means 13 of frequency-converting the output of the filter means to the frequency band of the received television signal. Further, the retransmission unit includes a local oscillation signal generating means of generating and outputting a local oscillation signal for the frequency conversion of the first frequency converting means and second frequency converting means, a frequency control means for controlling the oscillation frequency of the local oscillation signal generating means within a predetermined range, and a second filter means which is a filter passing the local oscillation signal output from the local oscillation signal generator to the second frequency converting means and at least has a passband equal to the control range of the oscillation frequency controlled by the frequency control means.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供使用相同频率并且便宜且性能和灵活性高的重传单元。解决方案：重发单元包括将施加到输入端的电视信号频率转换为中频的第一频率转换装置11，选择性地传送所需输出的所需电视信号分量的第一滤波器装置12，第一频率转换装置和将滤波器装置的输出频率转换成接收的电视信号的频带的第二频率转换装置13。此外，重发单元包括本地振荡信号发生装置，用于产生和输出用于第一频率转换装置和第二频率转换装置的频率转换的本地振荡信号，频率控制装置，用于控制本地振荡信号的振荡频率产生装置在预定范围内的第二滤波器装置，以及通过从本地振荡信号发生器输出的本地振荡信号到第二频率转换装置的滤波器的第二滤波器装置，并且至少具有等于振荡频率控制的控制范围的通带通过频率控制装置。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2007201856A Method and program of monitoring sneak in apparatus for retransmitting digital broadcast 有权
标题翻译：监视数字广播设备监控方法及程序
公开(公告)号：JP2007201856A
公开(公告)日：2007-08-09
申请号：JP2006018529
申请日：2006-01-27
申请人： Maspro Denkoh Corp , マスプロ電工株式会社
发明人： SUGIYAMA KAZUO , YOSHIDA KEISUKE , SUGIURA TOSHIHIRO
IPC分类号： H04B7/15 , H04N5/00
摘要： PROBLEM TO BE SOLVED: To provide a method and program of monitoring sneak for achieving an inexpensive and high-performance digital broadcast retransmitting apparatus insusceptible to sneaking interference with a simple configuration, and suitable for retransmission of a digital broadcast. SOLUTION: If a receiving BER is the same as or smaller than a predetermined reference value, an output is set at a predetermined level. If the receiving BER is larger than the predetermined reference value, an output is set at an operation level lower than the predetermined level by a predetermined quantity. If a state determined that the receiving BER is larger than the predetermined reference value continues for a predetermine period; a signal attenuating means is caused to perform a squelch operation, and the value of the receiving BER determined to be larger than the predetermined reference value is stored as a first reference value. Then, if the receiving BER is determined to be smaller than the first reference value in a state where the signal attenuating means is performing the squelch operation; a newly acquired receiving BER is stored as a second reference value instead of the first reference value, and the output after amplification by the signal amplifying means is set at an operation level. Further, if the newly acquired receiving BER is smaller than the second reference value in a state where the output is an operation level, the output after amplification by the signal amplifying means is set at the predetermined level. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种监视潜行的方法和程序，以实现不易受到以简单配置的潜在干扰的便宜且高性能的数字广播重传设备，并且适合于数字广播的重传。解决方案：如果接收BER与预定参考值相同或相等，则将输出设置在预定水平。如果接收BER大于预定参考值，则将输出设置在低于预定电平的操作电平预定量。如果确定接收BER大于预定参考值的状态持续预定的周期; 使信号衰减装置进行静噪操作，并且将被确定为大于预定参考值的接收BER的值存储为第一参考值。然后，如果在信号衰减装置正在执行静噪操作的状态下确定接收BER小于第一参考值; 新获取的接收BER被存储为第二参考值而不是第一参考值，并且由信号放大装置放大后的输出被设置在操作级别。此外，如果在输出是操作电平的状态下新获取的接收BER小于第二参考值，则由信号放大装置放大之后的输出被设置在预定电平。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2007201855A Apparatus for retransmitting digital broadcast 审中-公开
标题翻译：用于恢复数字广播的设备
公开(公告)号：JP2007201855A
公开(公告)日：2007-08-09
申请号：JP2006018528
申请日：2006-01-27
申请人： Maspro Denkoh Corp , マスプロ電工株式会社
发明人： SUGIYAMA KAZUO , YOSHIDA KEISUKE , SUGIURA TOSHIHIRO
IPC分类号： H04B7/15 , H04B1/16 , H04N5/00
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for retransmitting digital broadcast retransmitting apparatus capable of avoiding a sneaking phenomenon. SOLUTION: The apparatus includes a signal processor 10 consisting of a signal branching means 11, a signal attenuating means 15 for attenuating an output of the signal branching means by a predetermined level, and a signal amplifying means 18 for amplifying an output of the signal attenuating means up to a predetermined level; a channel selecting/demodulating means 12 for selectively channel-selecting a signal of a predetermined broadcast channel from a branching output of the signal branching means, and demodulating predetermined data from a signal of the broadcast channel; and a monitoring and control means 13 for calculating a bit error rate from the predetermined data demodulated in the channel selecting/demodulating means, comparing the bit error rate to be acquired from results of the calculation with a predetermined reference value of a predetermined bit error rate and determining them, and controlling an attenuation quantity of the signal attenuating means so that an output after amplification by the signal amplifying means may be changed by a predetermined quantity from the predetermined level. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够避免潜行现象的重发数字广播重传装置。解决方案：该装置包括信号处理器10，该信号处理器10由信号分支装置11，用于衰减信号分支装置的输出预定电平的信号衰减装置15，以及用于放大信号衰减装置直到预定电平; 频道选择/解调装置12，用于从信号分支装置的分支输出中选择性地频道选择预定广播频道的信号，并从广播频道的信号中解调预定数据; 以及监视和控制装置13，用于根据在频道选择/解调装置中解调的预定数据来计算比特误码率，将要获取的比特误码率与预定比特错误率的预定参考值进行比较并确定它们，并且控制信号衰减装置的衰减量，使得由信号放大装置放大之后的输出可以从预定电平改变预定量。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2004304613A Intrabuilding booster for bidirectional catv system 有权
公开(公告)号：JP2004304613A
公开(公告)日：2004-10-28
申请号：JP2003096426
申请日：2003-03-31
申请人： Maspro Denkoh Corp , マスプロ電工株式会社
发明人： SUGIYAMA KAZUO , YOSHIDA KEISUKE
IPC分类号： H03F3/62 , H04N7/10 , H04N7/16 , H04N21/61 , H04N21/647
摘要： PROBLEM TO BE SOLVED: To provide an intrabuilding booster 1 for a bidirectional CATV system which has no C/N deterioration and can save energy when operating up-stream signals at a high level.
SOLUTION: An amplifier circuit for up-stream signals 3 comprises a first amplifier 30, a passing line 31 connected to the first amplifier 30 in parallel, a selection means 32 for selecting and outputting an up-stream signal in the CATV system via either the first amplifier 30 connected in parallel or the passing line 31, a level adjusting means 33 connected to an output of the selection means 32, and a second amplifier 34 connected to the output of the level adjusting means 33. By selectively applying a DC voltage to the first amplifier 30 and the selection means 32, either the first amplifier 30 connected in parallel or the passing line 31 is selected.
COPYRIGHT: (C)2005,JPO&NCIPI

6. 发明专利

JP2006013636A Frequency converter 审中-公开
标题翻译：频率转换器
公开(公告)号：JP2006013636A
公开(公告)日：2006-01-12
申请号：JP2004184248
申请日：2004-06-22
申请人： Maspro Denkoh Corp , マスプロ電工株式会社
发明人： YOSHIDA KEISUKE , TORIYAMA SHIGEMITSU
IPC分类号： H04B1/26 , H03D7/00 , H04B1/18
摘要： PROBLEM TO BE SOLVED: To provide a frequency converter in which replacement of an input filter is not required and the time required for replacement can be eliminated.
SOLUTION: The frequency converter 10 comprises an input terminal 11 and an output terminal 12 arranged in a case, input filters 20/22 interposed in series between the input terminal 11 and the output terminal 12, frequency converting circuits 23/26/27, and an output filter 24. The frequency converting circuit 23/26/27 comprises a mixer 23, a PLL circuit 27 generating a local oscillation signal, and a voltage controlled oscillator 26. The input filter 20/22 comprises a tunable band-pass filter and determines a frequency band passing the input filter 20/22 in correspondence with the local oscillation frequency.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种频率转换器，其中不需要更换输入滤波器，并且可以消除更换所需的时间。解决方案：变频器10包括输入端子11和布置在壳体中的输出端子12，串联插入在输入端子11和输出端子12之间的输入滤波器20/22，频率转换电路23/26 / 27和输出滤波器24.频率转换电路23/26/27包括混频器23，产生本地振荡信号的PLL电路27和压控振荡器26.输入滤波器20/22包括可调频带 - 并确定与本地振荡频率对应的通过输入滤波器20/22的频带。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2005159668A Reception amplifier exclusively used for channel and catv system 审中-公开
标题翻译：接收放大器专用于通道和有线电视系统
公开(公告)号：JP2005159668A
公开(公告)日：2005-06-16
申请号：JP2003394488
申请日：2003-11-25
申请人： Alps Electric Co Ltd , Maspro Denkoh Corp , Nippon Hoso Kyokai , アルプス電気株式会社 , マスプロ電工株式会社 , 日本放送協会
发明人： KUBO TOSHIHIRO , YOSHIDA MASAHIKO , TANAKA RYOICHI , YOSHIDA KEISUKE
IPC分类号： H03G3/20 , H04B1/18 , H04N5/44 , H04N7/173
摘要： PROBLEM TO BE SOLVED: To provide a reception amplifier exclusively used for a channel for a CATV system capable of extracting a television broadcast signal to be amplified with high accuracy and amplifying the signal without incurring a cost increase in the reception amplifier even when the television broadcast signal is a signal broadcast on an adjacent channel together with other television broadcast signal.
SOLUTION: The reception amplifier 20 uses a down-converter 40 to convert a television broadcast signal received via an input circuit 30 into an intermediate frequency signal and passes the intermediate frequency signal after the conversion through a band pass filter 46 comprising a SAW filter and a notch filter to extract a signal component of a particular broadcast channel, and an AGC circuit 49 automatically adjusts a gain of an amplifier circuit 44 so that the signal level reaches a desired level. Further, the signal extracted by the band pass filter 46 is frequency-converted into a transmission television broadcast signal by an up-converter 50 and when an AGC output is high, a squelch circuit 58 stops the operation of an amplifier circuit 56.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供专门用于能够以高精度提取待放大的电视广播信号的CATV系统的频道的接收放大器，并且放大该信号，而不会导致接收放大器的成本增加，即使当电视广播信号是与其他电视广播信号一起在相邻频道上广播的信号。解决方案：接收放大器20使用下变换器40将经由输入电路30接收的电视广播信号转换为中频信号，并且通过包括SAW的带通滤波器46在转换之后通过中频信号滤波器和陷波滤波器来提取特定广播信道的信号分量，并且AGC电路49自动调整放大器电路44的增益，使得信号电平达到期望的水平。此外，由带通滤波器46提取的信号由上变频器50进行频率转换为发送电视广播信号，当AGC输出为高时，静噪电路58停止放大电路56的动作。
版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2006135189A Unit case of electronic apparatus 有权
标题翻译：电子设备单元案例
公开(公告)号：JP2006135189A
公开(公告)日：2006-05-25
申请号：JP2004324190
申请日：2004-11-08
申请人： Maspro Denkoh Corp , マスプロ電工株式会社
发明人： YOSHIDA KEISUKE
IPC分类号： H05K5/02
摘要： PROBLEM TO BE SOLVED: To improve an installation ability with a small size.
SOLUTION: In the unit case of an electronic apparatus in which the unit case is attached to a body case, the unit case comprises a first unit case which is detachably secured to a body chassis provided in the bottom of the body case; and a second unit case which has a size and shape corresponding to an engaging step formed at a corner on one side on a front face side of the first unit case, and is detachably secured to the engaging step of the first unit case in a longitudinal direction of the first unit case, and in a direction perpendicular to a mounting direction in which the first unit case is mounted to the body chassis. High frequency connectors are provided in the side of the front face and the side of the bottom on the side faces of the first unit case and the second unit case which are disposed opposite to each other, on a plane perpendicular to the mounting direction of the first unit case and the second unit case; and the first unit case is connected to the second unit case.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提高小尺寸的安装能力。解决方案：在单元壳体附接到主体壳体的电子设备的单元壳体中，单元壳体包括可拆卸地固定到设置在主体壳体的底部的主体底架的第一单元壳体; 以及第二单元壳体，其具有与形成在第一单元壳体的正面侧的一侧的角部处的接合台阶对应的尺寸和形状，并且以纵向方式可拆卸地固定到第一单元壳体的接合步骤第一单元壳体的方向，并且在垂直于第一单元壳体安装到主体底架的安装方向的方向上。高频连接器设置在第一单元壳体和第二单元壳体的在相对于第一单元壳体和第二单元壳体的侧面相对的侧面上的正面和底侧的侧面上，第一单元箱和第二单元箱; 并且第一单元壳体连接到第二单元壳体。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2006013806A Signal processor and head end device for catv 审中-公开
标题翻译：信号处理器和CATV的头端设备
公开(公告)号：JP2006013806A
公开(公告)日：2006-01-12
申请号：JP2004186874
申请日：2004-06-24
申请人： Maspro Denkoh Corp , マスプロ電工株式会社
发明人： YOSHIDA KEISUKE
IPC分类号： H04N7/10 , H04B1/16 , H04B1/26 , H04N7/16 , H04N21/2385 , H04N21/61
摘要： PROBLEM TO BE SOLVED: To provide a signal processor which can make the replacement of an input filter unnecessary, and to provide a head end device for CATV.
SOLUTION: The signal processor 10 used in the head end of a CATV system includes a first input terminal 11 and a first output terminal 12 in a casing. The signal processor 10 also includes input filters 20, 22 interposed in series between the first input terminal 11 and the first output terminal 12, down-converters 23, 31, and 32 for converting into an intermediate frequency signal lower than a receiving frequency, an up-converter 27 which outputs the output signal of a frequency higher than the intermediate frequency signal, and an output filter 30. Each input filter 20, 22 are constituted of a tunable band pass filter, and determines the frequency band which passes the input filters 20, 22 corresponding to local oscillation frequencies of the down-converters 23, 31 and 32.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够使输入滤波器更换不必要的信号处理器，并提供用于CATV的头端设备。解决方案：在CATV系统的头端中使用的信号处理器10包括壳体中的第一输入端子11和第一输出端子12。信号处理器10还包括串联插入在第一输入端子11和第一输出端子12之间的输入滤波器20,22，用于转换成低于接收频率的中频信号的下变换器23,31和32，输出频率高于中频信号的输出信号的上变频器27和输出滤波器30.每个输入滤波器20,22由可调谐带通滤波器构成，并且确定通过输入滤波器的频带 20对应于下变换器23,31和32的本地振荡频率。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2008178134A Amplifying device 审中-公开
标题翻译：放大器件
公开(公告)号：JP2008178134A
公开(公告)日：2008-07-31
申请号：JP2008046177
申请日：2008-02-27
申请人： Maspro Denkoh Corp , マスプロ電工株式会社
发明人： SUGIYAMA KAZUO , YOSHIDA KEISUKE
IPC分类号： H04N7/16 , H03F3/62 , H04N7/10 , H04N21/61 , H04N21/647
摘要： PROBLEM TO BE SOLVED: To provide an amplifying device capable of level adjustment without causing C/N of signals to degrade. SOLUTION: In an indoor booster 1 provided in the transmission line of a bidirectional CATV system, an up signal amplifier circuit 3 for amplifying up signals is provided with a first amplifier 30; a passing line 31, arranged in parallel with the first amplifier 30; a selection means 32 for making the up signals pass through the route of either first amplifier 30 or passing line 31; a level adjusting means 33 connected to the output of the selection means 32; and a second amplifier 34 connected to the output of the level adjusting means 33. By switching whether to apply a DC voltage to the first amplifier 30 and the selection means 32 via a power supply switching means 36, the passing route of the up signals is set to either one of the first amplifier 30 and the passing line 31. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够进行电平调整的放大装置，而不会导致信号的C / N降级。解决方案：在设置在双向CATV系统的传输线中的室内增强器1中，放大信号的上行信号放大器电路3设置有第一放大器30; 与第一放大器30并联布置的通过线31; 用于使上升信号通过第一放大器30或通过线31的路线的选择装置32; 连接到选择装置32的输出的电平调节装置33; 以及连接到电平调整装置33的输出端的第二放大器34.通过切换是否通过电源切换装置36向第一放大器30和选择装置32施加直流电压，上升信号的通过路径为设置为第一放大器30和通过线31中的任一个。版权所有（C）2008，JPO＆INPIT

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