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11. 发明专利

JPH09200115A METHOD FOR CONTROLLING ANTENNA DIRECTIVITY FOR RADIO BASE STATION IN RADIO COMMUNICATION SYSTEM AND VARIABLE DIRECTIVITY ANTENNA 失效
公开(公告)号：JPH09200115A
公开(公告)日：1997-07-31
申请号：JP959296
申请日：1996-01-23
申请人： TOSHIBA CORP
发明人： NAMEKATA MINORU , MUKAI MANABU , SHIYOUKI HIROKI
IPC分类号： H01Q3/00 , H04B1/76 , H04B7/10 , H04B7/26 , H04W16/28 , H04W24/00 , H04Q7/34
摘要： PROBLEM TO BE SOLVED: To provide the control method in which the antenna directivity of a base station in a radio communication system is surely directed in a direction of a desired terminal equipment through simple control. SOLUTION: In the radio communication system making communication between a radio base station 11 with a variable directivity antenna 13 and plural radio terminal equipments 12, the radio base station 11 sends a pilot signal in every direction in a communication service area 14 and a radio terminal equipment 12 measures the reception characteristic of the pilot signal and sends the reception characteristic data to the radio base station 11. The radio base station 12 controls the directivity of the variable directivity antenna 13 based on the reception characteristic data.

12. 发明专利

JPH0537431A ANTENNA DIVERSITY SYSTEM FOR SATELLITE COMMUNICATION 失效
公开(公告)号：JPH0537431A
公开(公告)日：1993-02-12
申请号：JP18767991
申请日：1991-07-26
申请人： TOSHIBA CORP
发明人： NAMEKATA MINORU , SOEYA MIYUKI , SERIZAWA MUTSUMI , OGURA KOJI , SUZUKI YASUO
IPC分类号： H01Q3/26 , H01Q21/20 , H01Q25/00 , H04B7/10
摘要： PURPOSE:To enable satisfactory communication even when a communication satellite is set at any position by selecting an antenna element out of plural antenna element based on received field intensity or the position information of the communication satellite. CONSTITUTION:Radio waves from a low orbit satellite 6 for mobile object communication are received by an antenna 8. In this case, a mobile object 9 has information concerning the satellite 6 in a low orbit satellite position information memory 10. Further, the received field intensity from the antenna 8 is measured by a received field intensity measuring instrument 13a and based on the position information held in the memory 10 and the received field intensity, an elevation angle calculator 12 calculates an elevation angle between the satellite 6 and the mobile object 9. Next, a directivity pattern (directivity, directivity gain and directivity half value width) 11 is prepared by a directivity pattern generator 13. Then, communication is executed with the satellite 6 which selecting the antenna element having the strongest received field intensity among the plural antenna elements.

13. 发明专利

JPH0477019A DIGITAL COMMUNICATION CONTROLLER 失效
公开(公告)号：JPH0477019A
公开(公告)日：1992-03-11
申请号：JP18543490
申请日：1990-07-16
申请人： TOSHIBA CORP
发明人： NAMEKATA MINORU , SERIZAWA MUTSUMI
IPC分类号： H04B3/06
摘要： PURPOSE:To suppress power consumption by inhibiting the drive of a 1st demodulator having an adaptive automatic equalizer when a 2nd demodulator not provided with an adaptive automatic equalizer is driven. CONSTITUTION:The training signal part of a 1st signal S1 inputted to a delay device 3 is demodulated by the delay detector 7 of a 2nd demodulator and delayed by a time required for the completion of a code error rate measurement and inputted to an adaptive automatic equalizer 5 via a changeover switch SWa controlled by a flag depending on an optional threshold level by a code error rate measurement instrument 9. When the flag is not set, the signal S1 is not inputted to the equalizer 5 and the operation of the equalizer 5 is stopped at all times. Moreover, the signal inputted to a delay device 11 being a signal outputted from a delay device 3 except the training signal from the delay detector 7 is inputted to the equalizer 5 through the switch SWa and delayed by a time required for the completion of the equalizing processing.

14. 发明专利

JP2004297354A Radio communication system, radio terminal used for the radio communication system, access point device, management device, program, and radio communication method 有权
公开(公告)号：JP2004297354A
公开(公告)日：2004-10-21
申请号：JP2003085669
申请日：2003-03-26
申请人： Toshiba Corp , 株式会社東芝
发明人： TSUNODA KEIJI , KAMAGATA EIJI , NAMEKATA MINORU
IPC分类号： H04L12/28 , H04Q7/36
摘要： PROBLEM TO BE SOLVED: To efficiently provide communication service by using a plurality of radio channel in an overlapped area. SOLUTION: A radio terminal 3 transmits a query message indicative of one of a plurality of service groups by using the radio channel. The query message is transformed into a query packet by an access point device 1 and is transmitted to a management server 2. The management server 2 selects the radio channel belonging to the service group indicated on the query packet and transmits an answer packet indicative of ESS-ID (Extended Service Set Identity) assigned to the radio channel. The answer packet is transformed to an answer message by the access point device 1 and is transmitted to the radio terminal equipment 3 by using the radio channel used for the transmission of the query message. The radio terminal equipment 3 receives transmitted answer information. COPYRIGHT: (C)2005,JPO&NCIPI

15. 发明专利

JP2003299150A Radio terminal equipment 审中-公开
标题翻译：无线电终端设备
公开(公告)号：JP2003299150A
公开(公告)日：2003-10-17
申请号：JP2002097650
申请日：2002-03-29
申请人： Toshiba Corp , 株式会社東芝
发明人： SAKAMOTO TAKEFUMI , ADACHI TOMOKO , NAMEKATA MINORU
IPC分类号： H04W88/06 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To provide radio terminal equipment for performing communication through the use of an optimum radio communication system in response to the use state or request of a user. SOLUTION: A plurality of transmission/reception parts are constituted to respectively perform transmission/reception with a plurality of radio base stations. Priorities are given to the transmission/reception parts to be used for communication by access destination, and stored in a memory 16 as a table. A transmission/reception control part 15 confirms the priorities corresponding to the access destinations by referring to the table in the memory 16 through the use of access destination specifying the information which is inputted by the user via an information input/output part 14. Then one transmission/ reception part to be used for communication with the access destination specified by the access destination specifying information is selected from the transmission/reception parts in response to the confirmed priorities. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供响应于用户的使用状态或请求，通过使用最佳无线电通信系统来进行通信的无线电终端设备。解决方案：多个发送/接收部分被构成为分别与多个无线电基站进行发送/接收。给予用于由接入目的地进行通信的发送/接收部分的优先级，并作为表存储在存储器16中。发送/接收控制部分15通过使用指定由用户经由信息输入/输出部分14输入的信息的访问目的地参考存储器16中的表格来确认对应于访问目的地的优先级。然后一个响应于确定的优先级，从发送/接收部分中选择要用于与由接入目的地指定信息指定的接入目的地通信的发送/接收部分。版权所有（C）2004，JPO

16. 发明专利

JP2000316182A BASE STATION EQUIPMENT AND TERMINAL STATION EQUIPMENT AND COMMUNICATION SYSTEM AND COMMUNICATION CONTROL METHOD 失效
公开(公告)号：JP2000316182A
公开(公告)日：2000-11-14
申请号：JP12527099
申请日：1999-04-30
申请人： TOSHIBA CORP
发明人： TOSHIMITSU KIYOSHI , SATO KAZUMI , SAKAMOTO TAKEFUMI , MORIYA OSAMU , NAMEKATA MINORU
IPC分类号： H04B7/26 , H04W72/04 , H04Q7/36
摘要： PROBLEM TO BE SOLVED: To obtain base station equipment, terminal station equipment, a communication system, and a communication control method for realizing efficient use of radio bands and impartial assignment of radio bands. SOLUTION: Base station equipment 1 is provided with a transmitting and receiving part 2 which transmits and receives all kinds of information by frame units with terminal station equipment 20a and 20b, a modulation system selecting part 3 which selects a modulation system, an error correction system selecting part 4 which selects an error correction system, a scheduler 5 which operates the assignment of each minislot in a frame, and a control part 6 which controls each part. The scheduler 5 operates the assignment of the minislots to be used for communication with each terminal station equipment 20a and 20b under the consideration of a modulation system or an error correction system so that the minislots in the frame can be utilized to the maximum. Therefore, it is possible to validly use a radio band, and to impartial assign the radio bands to each terminal station equipment 20a and 20b.

17. 发明专利

JP2000244358A EQUIPMENT AND METHOD FOR RADIO COMMUNICATION, AND RECORDING MEDIUM 失效
公开(公告)号：JP2000244358A
公开(公告)日：2000-09-08
申请号：JP35192699
申请日：1999-12-10
申请人： TOSHIBA CORP
发明人： YOSHIDA HIROSHI , SUGANO SHINICHI , TOMIZAWA TAKESHI , NAMEKATA MINORU , TSURUMI HIROSHI , TAMADA YUZO
IPC分类号： H03M1/12 , H04B1/38 , H04B1/3822 , H04L15/16 , H04W88/02 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To provide a radio communication equipment, its radio communication method and a recording medium recording its program, which can use an application program for general purpose and independent from hardware architecture. SOLUTION: The equipment controls at least one of the transmission/ reception, AD conversion, DA conversion and digital signal processing of a radio signal by executing a prescribed software on a basic software by referring to a library 13 consisting of a group of software for realizing a prescribed radio function with a digital signal processing means converting a received radio signal to a digital signal, converting a digital signal to transmit to a radio signal and executing digital signal processing with respect to the output of an AD conversion means and digital signal processing with respect to the input of a DA conversion means.

18. 发明专利

JPH11261518A TIME SLOT ALLOCATION METHOD 失效
公开(公告)号：JPH11261518A
公开(公告)日：1999-09-24
申请号：JP6363398
申请日：1998-03-13
申请人： TOSHIBA CORP
发明人： NAMEKATA MINORU , KAMAGATA EIJI
IPC分类号： H04L5/16 , H04J3/00 , H04J3/16 , H04J3/22 , H04W72/04 , H04Q7/36
摘要： PROBLEM TO BE SOLVED: To facilitate variable speed data transmission and asymmetrical data transmission. SOLUTION: A TDMA(time division multiple access) frame has N time slots 11 for up lines and M time slots 12 for down lines. A radio base station allocates a time slot to each radio terminal station by a control channel(C ch). In such a case, allocation is successively performed in order of a time slot in the neighborhood of the center of the time slot 11 and 12 for the up and down lines. Thus, mutual intervals between allocated time slots become relatively equal and are effective to the variable speed data transmission and the asymmetrical data transmission.

19. 发明专利

JPH11205026A ADAPTIVELY VARIABLE DIRECTIONAL ANTENNA 失效
公开(公告)号：JPH11205026A
公开(公告)日：1999-07-30
申请号：JP265998
申请日：1998-01-08
申请人： TOSHIBA CORP
发明人： NAMEKATA MINORU , SATO KAZUMI
IPC分类号： H01Q1/24 , H01Q3/26 , H01Q3/30 , H04J11/00
摘要： PROBLEM TO BE SOLVED: To execute transmission and reception without being influenced by multipath interference or the same frequency interference, etc., even at transmitting of a wideband signal. SOLUTION: An orthogonal frequency division multiplexing(OFDM) signal received from plural antenna elements 1 of an identical characteristic is supplied for an excitation weight calculating part 3 and, based on the inter-element interval of the elements 1 and the frequency interval of OFDM subcarriers, an excitation weight for controlling excitation of each antenna element and each subcarrier is calculated. The signal received from the antenna elements 1 is given the exitation weight calculated by an excitation weight giving part 4. Thereby, a directional pattern which is optimum in a desired direction is obtained over the entire band of the OFDM signal to execute transmission/ reception free from the influence of an interfering wave.

20. 发明专利

JPH1198205A DEMODULATOR FOR DIGITAL RADIO COMMUNICATION 失效
公开(公告)号：JPH1198205A
公开(公告)日：1999-04-09
申请号：JP25248697
申请日：1997-09-17
申请人： TOSHIBA CORP
发明人： NAMEKATA MINORU , KIMURA YASUYUKI
IPC分类号： H04L27/22 , H04B7/26
摘要： PROBLEM TO BE SOLVED: To simplify the configuration by converting a frequency-modulated or phase-modulated signal into an intermediate frequency signal and sampling an output of a counter means operated by a prescribed reference clock, based on a reception signal with an intermediate frequency so as to detect and demodulate phase information, thereby eliminating the need for controlling sign discrimination criterion for each information transmission period. SOLUTION: A sampling means 5 is made up of an amplitude limit means 10 that limits an amplitude of the intermediate frequency reception signal outputted from a frequency conversion means 3 and a latch means 21. The latch means 21 is realized by, e.g. a D-type flip-flop 22, its D input terminal connects to an output terminal of a counter means 8, and its CLK input terminal connects to an output terminal of the amplitude control means 10. The D-type flip-flop 22 latches data in m-bit which are phase information of the intermediate frequency reception signal outputted from the counter means 8 at each leading edge of an output signal of the amplitude limit means 10.

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