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1. 发明专利

JPH10256930A RADIO EQUIPMENT 失效
公开(公告)号：JPH10256930A
公开(公告)日：1998-09-25
申请号：JP6087997
申请日：1997-03-14
申请人： TOSHIBA CORP
发明人： OTAKA SHOJI , SEKINE SHUICHI , TSURUMI HIROSHI , KAYANO HIROYUKI , MAEDA TADAHIKO , YOSHIDA HIROSHI
IPC分类号： H03J7/18 , H03L7/08 , H03L7/093 , H03L7/107 , H04B1/18 , H04B1/26 , H04B1/30 , H04B1/40
摘要： PROBLEM TO BE SOLVED: To reduce power consumption, and to improve reception sensitivity by making a loop band covered by a synthesizer part which outputs a local oscillation signal in a loop band wider than a band at the time of speech during the detection of an idle channel in a system band used in a radio system. SOLUTION: A synthesizer part constituted of a reference oscillator 1101, reference frequency-divider 1103, phase comparator 1105, and comparison frequency-divider 1111 or the like outputs a local oscillation signal in a loop band covering a system band used in a radio system to a receiving part. Also, the synthesizer part is provided with a loop filter 1 for a normal mode and a loop filter 2 for a high speed mode, and when a normal mode period is ended, it is switched to a high speed mode by a switch 1153, a frequency different from that of a speech channel is set, and an empty channel is searched. Then, a controlling means makes the loop band covered by the synthesizer part wider than a band at the time of speech during the detection of the empty channel in the system band.

2. 发明专利

JPH08186429A DIVERSITY ANTENNA 失效
公开(公告)号：JPH08186429A
公开(公告)日：1996-07-16
申请号：JP32640394
申请日：1994-12-27
申请人： TOSHIBA CORP
发明人： SEKINE SHUICHI , NAKAJIMA TERUAKI , MAEDA TADAHIKO , IWASAKI HISAO , SUZUKI YASUO
IPC分类号： H01Q21/00 , H01Q13/08 , H01Q21/24 , H04B7/08 , H04B7/10
摘要： PURPOSE: To provide the diversity antenna with which satisfactory diversity characteristics can be provided by using a one-sided short-circuit patch antenna. CONSTITUTION: This antenna is composed of a rectangular ground conductor plate 10 and first and second antenna elements 11 and 12 arranged on the same face in counter to this ground conductor plate 10 and respectively equipped with short-circuit sides short-circuited to the ground conductor plate 10. Then, the antenna element 11 is arranged at the almost central part of the lengthwise direction of the ground conductor plate 10 so that its short-circuit side 13 can be parallel with the long side of the ground conductor plate 10, and the antenna element 12 is arranged at the almost central part of the breadthwise direction of the ground conductor plate 10 so that its short-circuit side 14 can be parallel with the short side of the ground conductor plate 10.

3. 发明专利

JPH07193465A HIGH FREQUENCY INTEGRATED CIRCUIT 失效
公开(公告)号：JPH07193465A
公开(公告)日：1995-07-28
申请号：JP33271993
申请日：1993-12-27
申请人： TOSHIBA CORP
发明人： OBAYASHI SHUICHI , KAYANO HIROYUKI , MAEDA TADAHIKO , SUZUKI YASUO
IPC分类号： H03H11/28
摘要： PURPOSE:To reduce an entire area and to reduce the loss in a matching circuit by deciding the size of active elements in one or two steps excepting for the final step based on the ratio of the size for providing prescribed output power after satisfying distortion characteristics. CONSTITUTION:A high frequency integrated circuit 10 is provided with a prestage circuit 11, poststage circuit 12 and inter stage circuit 15 composed of active elements such as FET. The inter stage matching circuit 15 is composed of a capacitor 16, capacitor 17 connected on the ground side and inductor 19 or the like. In this case, after the distortion characteristics are satisfied, output power Pi (i=1 to n and n>=2) for each stage is made over Km-fold [Km=Gm/A (A is a prescribed value) corresponding to a ratio Gm between an irreducibly minimum size Wm of the active element to provide prescribed output power Pn (1

4. 发明专利

JPH0537440A PORTABLE COMMUNICATION EQUIPMENT 失效
公开(公告)号：JPH0537440A
公开(公告)日：1993-02-12
申请号：JP19186791
申请日：1991-07-31
申请人： TOSHIBA CORP
发明人： MAEDA TADAHIKO , KONNO YOSHIO , YAMADA SHUJI , KANDA MOTOI
IPC分类号： H02J7/00 , H04B7/26 , H04M1/00
摘要： PURPOSE:To prevent communication from being interrupted by securing minimum communication by turning off a transmitting function and operating only a receiving function when the remaining capacity of a battery used as a power source reaches a lower limit set value. CONSTITUTION:In the case of speaking (executing transmission/reception), a CPU 17 investigates whether the remaining capacity of the battery is set before a fixed value rather than the lower limit set value or not. Before the fixed value rather than the lower limit set value, based on an instruction from the CPU 17, an alarm is raised by display at a display part 19 or sounds, etc., from a speaker 15, for example. Afterwards, the function of a transmission part 12 is turned off after the lapse of fixed time. Namely, supply from a battery 20 as the power source to the transmission part 12 is cut off and afterwards, a receiving mode is started. Since the transmitting function is turned off, energy consumption is considerably limited rather than the case of executing transmitting and receiving operations up to the moment. Therefore, the receiving operation can be continued for a comparatively long time, and the minimum communication can be executed.

5. 发明专利

JPH04286223A RADIO BASE STATION ANTENNA FOR MOBILE COMMUNICATION SYSTEM AND PRIVATE BRANCH RADIO COMMUNICATION SYSTEM 失效
公开(公告)号：JPH04286223A
公开(公告)日：1992-10-12
申请号：JP4981291
申请日：1991-03-14
申请人： TOSHIBA CORP
发明人： YOSHIDA HIROSHI , MAEDA TADAHIKO , SERIZAWA MUTSUMI , SUZUKI YASUO
IPC分类号： H04B7/26 , H04M1/00
摘要： PURPOSE:To set a line from a call originatable terminal to a call origination exclusive terminal by combining the call originating exclusive terminal and a pager, and providing a repeating terminal having, at least, two lines. CONSTITUTION:The call originatable terminal 4 originates a call to call terminating equipment in the repeating terminal 3 through a telephone network. When the call terminating equipment receives the call from the terminal 4, it turns immediately that line into a holding state, and on the other hand, it calls the pager in a portable type terminal 1 through a pager base station 6 by automatic dialing equipment and call originating and terminating equipment by using the other line, and afterwards, it cuts off automatically the line by automatic line cut-off equipment. The pager in the portable type terminal 1 having been called from the repeating terminal originates automatically the call from the call originating only terminal to the repeating terminal 3 by the automatic dialing equipment through a radio base station 2 and a central telephone exchange 5. Thus, the line is set between the portable type terminal 1 and the repeating terminal 3.

6. 发明专利

JPH04285867A APPARATUS FOR ANALYZING ELECTROMAGNETIC FIELD 失效
公开(公告)号：JPH04285867A
公开(公告)日：1992-10-09
申请号：JP4988591
申请日：1991-03-14
申请人： TOSHIBA CORP
发明人： SEKINE SHUICHI , MAEDA TADAHIKO
IPC分类号： G01R29/08
摘要： PURPOSE:To input an analyzing model within a short time by selecting a desired fundamental shape from preliminarily stored fundamental shapes and forming the analyzing model from a combination wherein a size, inclination and a position are changed. CONSTITUTION:The model becoming the object of the analysis of an electromagnetic field is inputted. The analyzing model is projected on an xy plane, a yz plane and an xz plane of A, B, C and lattices becoming the standards of parameters at the time of input are preliminarily displayed on the parts A, B, C. The analyzing model is three-dimensionally displayed on a part D. A desired fundamental shape is selected from the table of a part E to be displayed on the parts A-E. The displayed fundamental shape is changed in the size of its parameter and can move to an arbitrary place on a screen. After the parameter of the fundamental shape is determined and debunching is performed, the inspection of connection.non-connection is performed in numerical order by investigating whether the lattice points indicated around the respective lattice points successively adjacent to each other of the lattice points within a constitutional element indicated in number are present.

7. 发明专利

JPH03285425A PORTABLE RADIO COMMUNICATION EQUIPMENT 失效
公开(公告)号：JPH03285425A
公开(公告)日：1991-12-16
申请号：JP8677990
申请日：1990-03-31
申请人： TOSHIBA CORP
发明人： SEKINE SHUICHI , MAEDA TADAHIKO
IPC分类号： H04B1/38 , H04W88/02
摘要： PURPOSE:To execute stable radio communication by providing a first transmitting/ receiving means to execute the transmission/reception of an RF signal, second transmitting/receiving means to execute the transmission/reception of a base band signal, and interrupting means to interrupt both transmitting/receiving means in a high frequency circuit. CONSTITUTION:For two-divided transmission/reception parts 3 and 5, an inductance element 11 is provided to a ground line 13 among connecting lines connecting these parts and they are interrupted in the high frequency circuit. These transmission/ reception parts 3 and 5 are composed of a circuit board covered with a metallic enclosure. The inductance element 11 is provided also between a loudspeaker 7 and the transmission/reception part 5, and the interruption is executed in the high frequency circuit. In order to reduced an influence upon a human body, the loudspeaker 7 is fixed away from the transmission/reception part 3 as much as possible. A housing 9 is made of a dielectric. Then, since the communication is executed while grasping the transmission/reception part 5 by a hand with the transmission/reception part 3 as an RF transmission/reception part and the transmission/reception part as a base band transmission/reception part, the influence of the inductance element 11 upon the transmission/reception circuit can be suppressed.

8. 发明专利

JPH02183073A CONTROLLER FOR ACCESS TO ROOM 失效
公开(公告)号：JPH02183073A
公开(公告)日：1990-07-17
申请号：JP164689
申请日：1989-01-07
申请人： TOSHIBA CORP
发明人： OURA SEIJI , MAEDA TADAHIKO , DOMON TOMOKAZU
IPC分类号： E05F15/00
摘要： PURPOSE:To make a large number of people pass quickly by reopening a door when reopening is required from either of one side during a time when the door is opened and closed in response to an opening demand from said one side to the door. CONSTITUTION:A person approaches to a door 1, and steps on a mat switch 21 on the A side. A controller 6 outputs a judgement investigation command as to whether the registered code of a radio ID card 3 held by the person has been registered or not to a transmission control section 14 at that time. The transmission command of the code is output to the card 3 through a loop antenna 5 by the control section 14, and whether the code from the code 3 has been registered already or not is judged by the control section 14. When the registration is found to be completed by the control section 14, the judgement is output to the controller 6, and the controller 6 outputs an opening command to a door open-close mechanism 11, and the door 1 is opened. When a companion continuously steps on the switch 21 during a time when the door 1 is not closed, the controller 6 detects the stepping, and the door 1 is opened.

9. 发明专利

JPH02183070A CONTROLLER FOR ACCESS TO ROOM 失效
公开(公告)号：JPH02183070A
公开(公告)日：1990-07-17
申请号：JP164389
申请日：1989-01-07
申请人： TOSHIBA CORP
发明人： OURA SEIJI , MAEDA TADAHIKO , DOMON TOMOKAZU
IPC分类号： E05F15/00
摘要： PURPOSE:To prevent a malfunction of opening and closing control of a door by providing a waiting command means alerting until the other opening demand is treated against either opening demand when opening demands from both sides of the door are offered. CONSTITUTION:Two persons approach a door 1 to simultaneously step on mat switches 21 and 23 on A and B side respectively. At that time, a controller 6 outputs a decision inquiry command about whether a code of the radio ID card owned by one of them is registered or not to a transmission control section 14. Then, when the code is registered at the control section 14, a transmission command of the code is outputted to a card 3 through a loop antenna 5, a decision is made about whether the code is registered, and is outputted to the controller 6. When the code is registered, the controller 6 outputs an opening command to a door opening and closing mechanism 11 to open the door 1. Further, the door 1 closes after one person passes, and after detecting the step ping again of the switch 23 by one person, the controller 6 processes the other persons's demand.

10. 发明专利

JP2004179693A Radio communication apparatus 有权
公开(公告)号：JP2004179693A
公开(公告)日：2004-06-24
申请号：JP2002340036
申请日：2002-11-22
申请人： Ritsumeikan , Toshiba Corp , 学校法人立命館 , 株式会社東芝
发明人： MAEDA TADAHIKO , SHIYOUKI HIROKI
IPC分类号： H04B1/38 , H04B1/3822
摘要： PROBLEM TO BE SOLVED: To provide a radio communication apparatus in which radio communication resources such as a frequency band, a radio wave space, and a time required for radio communication are effectively utilized in accordance with the characteristics of applications. SOLUTION: The radio communication apparatus using any of a plurality of different radio communication systems to execute a plurality of applications with different characteristics, selects any of a plurality of the communication systems for each application on the basis of the characteristic of each application, determines a frequency band of a radio wave in use for the radio communication in the selected radio communication system and a directive pattern of the radio wave, shares the execution time of each application on the basis of the characteristic of each application, and selects the radio communication system, the frequency band, and the directive pattern determined for each application according to the time sharing to execute each application. COPYRIGHT: (C)2004,JPO

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