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    • 81. 发明专利
    • Station monitoring apparatus and station monitoring system
    • 站监测装置和站监测系统
    • JP2006246083A
    • 2006-09-14
    • JP2005059686
    • 2005-03-03
    • Hitachi Cable LtdN H K Itec:KkWill:Kk日立電線株式会社株式会社ウイル株式会社エヌエイチケイアイテック
    • OZAKI YASUKINASU YOSHIHIKOSODA HIROYOSHIUDO JUNICHI
    • H04N17/00H04B17/02H04B17/40H04H1/00H04H20/00H04H20/06H04H20/12
    • PROBLEM TO BE SOLVED: To provide a station monitoring system capable of monitoring a signal on which the image quality of a received image is directly reflected in the case of relaying digital waves. SOLUTION: A control circuit 43 monitors the C/N ratio and the BER value on the basis of an output from a demodulation integrated circuit 42 so as to always monitor whether or not the C/N ratio and the BER value indicate any abnormity. For example, when the C/N ratio and the BER value consecutively indicate any abnormity, the control circuit 43 generates an abnormity signal, and when the C/N ratio and the BER value indicate no abnormity, the control circuit 43 discriminates that broadcasting is normally in operation. The control circuit 43 outputs the C/N ratio, the BER value, and its discrimination result or the like as above to a transmission medium 49 as evaluation results associated with the operating state so as to transmit the results to a management control center 50 via a packet communication channel PN. The management control center 50 can grasp individual operating states of relay stations 20, 30(1) to 30(n) in real time on the basis of the evaluation results detected by a station monitor apparatus 40. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种能够监视在中继数字波的情况下直接反映接收图像的图像质量的信号的站监视系统。 解决方案:控制电路43基于来自解调集成电路42的输出监视C / N比和BER值,以便始终监视C / N比和BER值是否表示任何 异常。 例如,当C / N比和BER值连续地表示任何异常时,控制电路43产生异常信号,当C / N比和BER值表示无异常时,控制电路43判别广播是 通常在运行。 控制电路43输出如上所述的C / N比率,BER值及其鉴别结果等作为与操作状态相关联的评估结果,以便将结果通过管理控制中心50经由 分组通信信道PN。 管理控制中心50可以基于由站监视装置40检测到的评估结果实时地掌握中继站20,30(1)至30(n)的各个操作状态。(C) 2006年,JPO&NCIPI
    • 87. 发明专利
    • Radio broadcast receiver
    • 无线电广播接收机
    • JP2006129068A
    • 2006-05-18
    • JP2004314516
    • 2004-10-28
    • Alpine Electronics Incアルパイン株式会社
    • GAMO RYOJI
    • H04B7/08H04B17/40
    • H04B7/0871H04B7/082H04B7/084
    • PROBLEM TO BE SOLVED: To provide a "radio broadcast receiver" for reducing quality deterioration of a reception signal that is subjected to diversity reception. SOLUTION: When the level difference between a reception signal of a main antenna 11 and a reception signal of a sub antenna 13 is less than a predetermined threshold and when the phase difference between the reception signal of the main antenna 11 and the reception signal of the sub antenna 13 exceeds a predetermined threshold, a synthetic ratio of a synthesizing part 15 for synthesizing an output of a main tuner 12 with an output of a sub tuner 14 is defined as 1:1 to perform diversity of a common-mode synthesis method. In the other cases, the synthetic ratio of the synthesizing part 15 is switched between 1:0 and 0:1 in accordance with the state, etc., of the occurrence of a multipath to thereby perform selective diversity. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于减少经受分集接收的接收信号的质量恶化的“无线电广播接收机”。 解决方案:当主天线11的接收信号和子天线13的接收信号之间的电平差小于预定阈值时,并且当主天线11的接收信号与接收之间的相位差 子天线13的信号超过预定阈值,将用于合成主调谐器12的输出的合成部分15与子调谐器14的输出的合成比定义为1:1,以执行共模的分集 合成方法。 在其他情况下,根据多径的发生的状态等,合成部分15的合成比例在1:0和0:1之间切换,从而进行选择性分集。 版权所有(C)2006,JPO&NCIPI
    • 88. 发明专利
    • Adgc method and system
    • ADGC方法和系统
    • JP2006060858A
    • 2006-03-02
    • JP2005277912
    • 2005-09-26
    • Interdigital Technology Corpインターディジタル テクノロジー コーポレイションInterDigital Technology Corporation
    • KAZAKEVICH LEONIDYANG RUI
    • H03M1/18H03G3/00H03G3/20H03G3/30H03G7/06H03M1/08H03M1/12H04B17/40
    • H03G7/06H03G3/001H03M1/1235
    • PROBLEM TO BE SOLVED: To convert an input signal from analog to digital comprehensivelywith high resolution. SOLUTION: An ADGC device 30 which avoids some of the requirements associated with the property of a closed-loop AGC circuit and which meets the remaining requirements without much difficulty. The ADGC device 30 uses an analog to digital conversion method that increases the number of effective bit number of ADC by compressing the baseband input analog signal using a logarithmic circuit 34. After the compressed analog signal is converted into a digital signal, a digital anti-log processing or look-up table LUT42 is used to expand the digital signal back to the original linear scale. The word size of the output of the anti-log processing is larger than the input word size due to the nature of the anti-log function. To reduce the word size of the digital signal an open loop normalization technique can be applied. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:全面地将高分辨率的模拟输入信号转换成数字。 解决方案:ADGC装置30,其避免与闭环AGC电路的性质相关的一些要求,并且不需要很多困难地满足剩余要求。 ADGC装置30使用通过使用对数电路34压缩基带输入模拟信号来增加ADC的有效位数的模数转换方法。在将压缩的模拟信号转换为数字信号之后, 日志处理或查找表LUT42用于将数字信号扩展回原始的线性标度。 由于反日志功能的性质,反日志处理的输出的字大小大于输入字大小。 为了减小数字信号的字大小,可以应用开环归一化技术。 版权所有(C)2006,JPO&NCIPI
    • 89. 发明专利
    • Radio receiver and antenna selection method
    • 无线接收机和天线选择方法
    • JP2005348137A
    • 2005-12-15
    • JP2004165938
    • 2004-06-03
    • Oki Electric Ind Co Ltd沖電気工業株式会社
    • KIKURE TOSHIHARU
    • H04B7/08H04B1/06H04B7/00H04B7/10H04B17/40H04L1/02
    • H04B7/0811H04B7/0814H04B7/10
    • PROBLEM TO BE SOLVED: To provide a radio receiver and an antenna selection method capable of surely selecting a satisfactory antenna and suppressing power consumption. SOLUTION: A diversity receiver 10 switches each of received signals by an RF switching part 18, supplies it to an RSSI power detection part 34 with diversity function, supplies an antenna switching signal 22 to the RF switching part 18 by the RSSI power detection part 34 with diversity function, supplies an IQ starting signal 40 for starting an I/Q part 38 according to establishment of an antenna at this point of time, surely performs operation to a signal desired to be received without operation of processing by the I/Q part 38 by erroneously detecting noise, etc. and eliminates useless operations. COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供能够可靠地选择令人满意的天线并抑制功率消耗的无线电接收机和天线选择方法。 解决方案:分集接收机10通过RF切换部分18切换每个接收信号,将其提供给具有分集功能的RSSI功率检测部分34,通过RSSI功率向RF切换部分18提供天线切换信号22 具有分集功能的检测部分34根据在该时间点的天线的建立提供用于启动I / Q部分38的IQ启动信号40,可靠地对期望接收的信号执行操作,而不需要由I / Q部分38通过错误地检测噪声等并消除无用的操作。 版权所有(C)2006,JPO&NCIPI
    • 90. 发明专利
    • Pole switching down converter with symmetric resonator
    • POLE切换转换器与对称共振器
    • JP2005328537A
    • 2005-11-24
    • JP2005138997
    • 2005-05-11
    • Sony Internatl Europ Gmbhソニー インターナショナル (ヨーロッパ) ゲゼルシャフト ミット ベシュレンクテル ハフツング
    • RUHM INGOBOHNKE RALF
    • H03D7/12H04B1/24H04B1/26H04B15/00H04B17/40
    • H04B1/24
    • PROBLEM TO BE SOLVED: To provide a circuit and method for down converting a modulated signal, while shortening the non-resonating phase. SOLUTION: A pole switch down-converter with a symmetric resonator which shortens the non-resonating phase to approximately half of the RF carrier period of the modulated signal is proposed. The down-converter comprises a first and second λ/2 resonators (1a, 1b); a switching means (2) for connecting the first and second λ/2 resonators (1a, 1b); a control means (3) for controlling the switching means (2); and detection means (4, 5), connected to the first and second λ/2 resonators (1a, 1b) for detecting down-converted signal, wherein the control means (3) is adapted to initiate in a down-conversion cycle of the switching means (2), to connect the first and second λ/2 resonators for approximate half of the RF carrier period of the modulated signal. With this pole switch down-converter, adjacent RF channels can be selected and down-converted, by only slightly varying the pole switching repetition frequency. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于在调制信号下变频的电路和方法的同时缩短非谐振相位。 提出了一种具有对称谐振器的极开关下变频器,其将非谐振相位缩短到调制信号的RF载波周期的大约一半。 下变频器包括第一和第二λ/ 2谐振器(1a,1b); 用于连接第一和第二λ/ 2谐振器(1a,1b)的开关装置(2); 控制装置(3),用于控制切换装置(2); 和连接到第一和第二λ/ 2谐振器(1a,1b)上用于检测下变频信号的检测装置(4,5),其中控制装置(3)适于启动下变频周期 开关装置(2),用于将第一和第二λ/ 2谐振器连接到调制信号的RF载波周期的大约一半。 通过该极点开关下变频器,可以通过稍微改变极点开关重复频率来选择和下转相邻的RF通道。 版权所有(C)2006,JPO&NCIPI