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1. 发明专利

JPH0629839A FREQUENCY SYNTHESIZER 失效
公开(公告)号：JPH0629839A
公开(公告)日：1994-02-04
申请号：JP18142592
申请日：1992-07-09
申请人： FUJITSU LTD
发明人： KOBORI SATOSHI
IPC分类号： H03L7/10 , H03L7/187
摘要： PURPOSE:To immediately change the output frequency to the desired one with change of the dividing ratio of a variable divider by providing an emitter follower type transistor Tr having a small circuit scale between a D/A converter and an addition voltage terminal. CONSTITUTION:The gain of an emitter follower type Tr 7 is set at 1 with the input impedance (e.g. 5MOMEGA) and the output impedance (e.g. 500OMEGA) and with a resistance R (e.g. 500OMEGA) inserted between the emitter of the Tr 7 and the earth. Therefore the ratio between the output voltage of a D/A converter 6 and the voltage inputted to an addition voltage terminal 11 is equal to about 1 as shown by an equation I. Thus the voltage equal to the output voltage of the converter 6 is inputted to the terminal 11. In other words, the dividing ratio of a variable divider 2 is changed by the input data and with the Tr 7 of a small circuit scale provided between the converter 6 and the terminal 11. Thus the output frequency can be immediately changed into the desired one by a frequency synthesizer.

2. 发明专利

JPH02296421A DIVERSITY RECEIVER 失效
公开(公告)号：JPH02296421A
公开(公告)日：1990-12-07
申请号：JP11805589
申请日：1989-05-11
申请人： FUJITSU LTD
发明人： KOBORI SATOSHI
IPC分类号： H04B7/08
摘要： PURPOSE:To improve a dynamic SINAD characteristic by providing an electric field strength comparison means having a prescribed hysteresis width and sending a selection control signal of an average level of a received electric field strength and varying continuously the switching width of a control signal corresponding to the received electric field strength. CONSTITUTION:Inputted levels of two envelopes are compared by a comparator 61 and when a control signal is sent at a point (a) of an output level 30, the control signal is again sent when the level reaches a point 15. When a control signal is sent when an output level reaches a point a', the control signal is sent again at a point b'. That is, the comparator 61 is operated with a large switching width when the input level is high and with a small switching width when the input level is low and the switching width is varied consecutively. Thus, the changeover of diversity by the switch 41 is suppressed when the reception electric field level is high and the changeover is implemented positively when low, then the dynamic SINAD characteristic at a strong reception electric field level is improved.

3. 发明专利

JP2008300900A Online diagnostic method and apparatus 审中-公开
标题翻译：在线诊断方法和设备
公开(公告)号：JP2008300900A
公开(公告)日：2008-12-11
申请号：JP2007141250
申请日：2007-05-29
申请人： Fujitsu Ltd , 富士通株式会社
发明人： KOBORI SATOSHI
IPC分类号： H04B17/00 , H04B7/26
摘要： PROBLEM TO BE SOLVED: To obtain online diagnostic method and apparatus which can generate a pseudo reception wave having a data error and constitutes diagnosis by calculating BER. SOLUTION: In the online diagnostic apparatus of wireless base station equipment including a demodulation section 60 consisting of a circuit 63 for demodulating a reception signal, a section 61 for generating a pseudo reception wave for diagnosis, a self diagnosis circuit 64 for measuring the error rate of received data, and a circuit 62 for receiving the reception signal and the pseudo reception wave and selecting any one of them, and an MPU 55 for controlling the demodulation section 60, error data or an interference wave is employed as the data of the pseudo reception wave generating section 61, and the bit error rate is measured by receiving the error data or interference wave inserted into the signal route of reception signal. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：获得可产生具有数据误差的伪接收波的在线诊断方法和装置，并通过计算BER构成诊断。解决方案：在包括由用于解调接收信号的电路63组成的解调部分60的无线基站设备的在线诊断装置中，生成用于诊断的伪接收波的部分61，用于测量的自诊断电路64 接收数据的错误率，以及用于接收接收信号和伪接收波并选择其中任何一个的电路62，以及用于控制解调部分60的MPU55，误差数据或干扰波被用作数据并且通过接收插入到接收信号的信号路径中的误差数据或干扰波来测量误码率。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2007336404A Load distribution system of demodulation portion 有权
标题翻译：解体部分负荷分配系统
公开(公告)号：JP2007336404A
公开(公告)日：2007-12-27
申请号：JP2006168229
申请日：2006-06-19
申请人： Fujitsu Ltd , 富士通株式会社
发明人： TATEZAKI FUMIAKI , KOBORI SATOSHI
IPC分类号： H04B1/707 , H04B1/711 , H04J1/00 , H04W28/08 , H04W88/10
摘要： PROBLEM TO BE SOLVED: To provide a load distribution system of a demodulation portion which has inputs of a control portion to receive an indication from a receiving portion of a radio signal of a radio base station apparatus and of a main signal, is provided with a call processing portion, a path detecting portion having a plurality of units, and a reverse diffusion processing portion, and allocates a load so that a processing load to the path detecting portion of the plural units of the demodulation portion becomes equal. SOLUTION: The call processing portion is provided with a processing load monitoring portion which is provided with a different unit processing load rate holding portion to hold a present processing load rate of each unit of the path detecting portion and a processing load rate updating portion, the different unit processing load rate holding portion is referred when a new signal generates the indication of a receiving ON, the unit of a minimum processing load rate is judged, the new signal is allocated to the path detecting portion of the judged unit, and the processing load rate updating portion updates the different unit processing load rate holding portion corresponding to the unit allocated by the new signal. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种解调部分的负载分配系统，其具有从无线电基站装置的无线电信号的接收部分和主信号接收指示的控制部分的输入，是设置有呼叫处理部分，具有多个单元的路径检测部分和反向扩散处理部分，并且分配负载，使得对解调部分的多个单元的路径检测部分的处理负荷变得相等。解决方案：呼叫处理部分设置有处理负载监视部分，该部分设置有不同的单元处理负载率保持部分，以保持路径检测部分的每个单元的当前处理负载率和处理负载率更新当新的信号产生接收到的指示时，参考不同的单位处理负载率保持部分，判断最小处理负载率的单位，将新信号分配给判定单元的路径检测部分，并且处理负载率更新部分更新与由新信号分配的单元相对应的不同单元处理负载率保持部分。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JPH0923206A DELAY LOCK LOOP DEVICE 失效
公开(公告)号：JPH0923206A
公开(公告)日：1997-01-21
申请号：JP16963195
申请日：1995-07-05
申请人： FUJITSU LTD
发明人： KOBORI SATOSHI
IPC分类号： H04J13/00 , H04B1/7085
摘要： PROBLEM TO BE SOLVED: To vary a delay amount of a delay lock loop used, e.g. for mobile communication. SOLUTION: A spread spectrum communication receiver is provided with a control voltage generating section in which part of a received autocorrelation function is given to a delay circuit 32 and the remaining part is inverted and they are added to generate a control voltage, and an oscillating section which samples a received control voltage and the sampled control voltage is used to generate a clock signal having a period of a nearly chip length. Then in the delayed lock loop device controlling the clock period minimizing the sampled control voltage, the delay of the delay circuit 32 is controlled.

6. 发明专利

JP2002359576A CDMA-RECEIVING DEVICE 失效
公开(公告)号：JP2002359576A
公开(公告)日：2002-12-13
申请号：JP2001165103
申请日：2001-05-31
申请人： FUJITSU LTD
发明人： OKAZAKI YUKI , KOBORI SATOSHI , HIKITA MASAHIKO , TAKEUCHI MASAJI , HAMADA SEIJI
IPC分类号： H04B1/707 , H04B1/7117 , H04L7/00 , H04W48/16 , H04W56/00 , H04W76/02 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To improve precision of the path search function of a CDMA-receiving device. SOLUTION: This CDMA-receiving device for detecting the path of a direct arriving wave and a delayed arriving wave, corresponding to the same channel from a received signal, and for compounding the detected path signals is provided with a searcher part operable in a first mode in a first search time range and a second mode in a second search time range which is narrower than the first search time range for detecting the path of the direct arriving wave and the delayed arriving wave in the first mode or the second mode and finger part for receiving the signal of the path detected by the searcher part through inverse spreading, and for compounding the inversely spread signals, and for detecting whether or not the synchronization of the compounded signal has been established. The searcher part is constituted so as to be operated in the first mode at the time of starting the reception of the signal, and to be actuated by switching the first mode to the second mode, when the synchronization of the compounded signal is detected by the finger part.

7. 发明专利

JPH08163104A DIVERSITY RECEIVING SYSTEM 失效
公开(公告)号：JPH08163104A
公开(公告)日：1996-06-21
申请号：JP30112794
申请日：1994-12-05
申请人： FUJITSU LTD
发明人： KOBORI SATOSHI
IPC分类号： H04B7/08 , H04L1/06
摘要： PURPOSE: To provide a diversity receiving system which can always ensure a good receiving state of signals. CONSTITUTION: In a diversity receiving system which performs the reception of signals by switching plural receiving paths 1 and 2, the distortion value of detection signals of both paths 1 and 2 are detected. At the same time, the path 1 or 2 that has the least detected distortion value is selected for reception of signals. It is preferable to observe the detection signals in terms of time series to calculate the eye opening and the receiving path where the eye opening is largest is selected. On the other hand, a shift extent is calculated at a symbol point against the prescribed reference value of the detection signal and the receiving path where the shift extent is minimized is selected. Furthermore, it is desirable to previously select in time division an undetected receiving path and also the distortion value of the detection signal is calculated for the selected receiving path. Then the receiving path where the calculated distortion value is minimized is selected for reception of signals.

8. 发明专利

JPH06276093A FREQUENCY SYNTHESIZER 失效
公开(公告)号：JPH06276093A
公开(公告)日：1994-09-30
申请号：JP5890593
申请日：1993-03-18
申请人： FUJITSU LTD
发明人： TODA YOSHIFUMI , KOBORI SATOSHI , SASAKI SUSUMU , KOBAYASHI TOSHIMITSU
IPC分类号： H03L7/16 , H03L7/18 , H03L7/22
摘要： PURPOSE:To securely switch the frequency of an output signal fast at fine frequency intervals as to the frequency synthesizer which obtains an output signal of desired frequency by performing a frequency synthesizing process for a signal giving a reference frequency. CONSTITUTION:This frequency synthesizer is equipped with frequency synthesizing means 111-11N which generate intermediate-frequency signals by performing indirect type frequency synthesizing processes individually for the input signal giving the reference frequency on the basis of frequency division ratios variably set from outside and a signal generating means 13 which generates the output signal of desired frequency by performing a frequency synthesizing process for the intermediate-frequency signals generated by the frequency synthesizing means 111-11N.

9. 发明专利

JPH04220002A MATCHING CIRCUIT STRUCTURE 失效
公开(公告)号：JPH04220002A
公开(公告)日：1992-08-11
申请号：JP40454690
申请日：1990-12-20
申请人： FUJITSU LTD
发明人： KOBORI SATOSHI
IPC分类号： H03H7/38 , H01P5/02 , H04B1/26 , H04B1/40
摘要： PURPOSE:To make an inductive component desired to be caused in a strip line correct, to reduce the attenuation of a signal at a GHz band, to improve the flexibility against a change in a matching circuit, and to attain the thin profile and miniaturization by adopting a parting means for a strip line from a ground potential plane. CONSTITUTION:An impedance component required for impedance matching is provided to a strip line 4 formed on an insulation board 2 in a meandering way and a static capacitance required for impedance matching is provided to a capacitor 8 to form a matching circuit structure, then the matching circuit structure is mounted on a printed circuit board mounted to a radio section and one terminal of a line 4 is connected to the antenna, while the other terminal of the said line 4 is connected to the radio section thereby adopting the matching required for the said radio section. Thus, the strip line is parted from a ground potential plane with a comparatively thin insulation board 2.

10. 发明专利

JP2010273065A Mobile communication system and radio base station apparatus 有权
标题翻译：移动通信系统和无线基站设备
公开(公告)号：JP2010273065A
公开(公告)日：2010-12-02
申请号：JP2009122680
申请日：2009-05-21
申请人： Fujitsu Ltd , 富士通株式会社
发明人： KOBORI SATOSHI
IPC分类号： H04W36/24 , H04B1/7073 , H04J13/00 , H04W36/38 , H04W92/12 , H04W92/20
CPC分类号： H04W36/0055 , H04W36/0072 , H04W36/06 , H04W88/08
摘要： PROBLEM TO BE SOLVED: To provide a mobile communication system preventing deviation of hard handover processing timing.
SOLUTION: A radio base station apparatus determines a possibility of handover processing delay according to a first hard handover start timing when the first hard handover processing start timing is received from a host device, and on determining there is a possibility of delay, performs the hard handover processing at a second hard handover processing start timing later than the first hard handover processing start timing.
COPYRIGHT: (C)2011,JPO&INPIT

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