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1. 发明专利

JPH08242485A RADIO TELEPHONE SYSTEM AND ITS INCOMING CONNECTION METHOD 失效
公开(公告)号：JPH08242485A
公开(公告)日：1996-09-17
申请号：JP4217495
申请日：1995-03-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TATE KAZUYUKI , MIZUDORI YASUO , NEMOTO YOSHINARI , KAWAGUCHI TORU
IPC分类号： H04Q7/38
摘要： PURPOSE: To provide a radio telephone system and its incoming connection method which can effectively operate a radio circuit. CONSTITUTION: This system and method consist of plural radio telephone sets 8 having bells and a radio connection device 7 which connects these sets 8 to a general circuit network 4 via a radio circuit 2. Detecting the incoming call received from true network 4, the device 7 notifies the telephone sets 8 of the incoming call and the channel radio frequency f2 via a control channel of radio frequency f1. Then the device 7 connects a call related to the incoming call to the telephone sets 8 via a channel of the frequency f2. In such an incoming connection method of a radio telephone system, the device 7 confirms the ID numbers of the telephone sets 8 when the communication is carried out via the control channel. Then the device 7 outputs the control signals to actuate the bells of the telephone sets 8 when it decides that the incoming call can be connected to the sets 8.

2. 发明专利

JPH0338123A OUTGOING INCOMING CALL STANDBY SYSTEM IN MULTI-CHANNEL MOBILE COMMUNICATION SYSTEM 失效
公开(公告)号：JPH0338123A
公开(公告)日：1991-02-19
申请号：JP17251989
申请日：1989-07-04
申请人： TOSHIBA CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： ISHIKAWA TOMOO , MIZUDORI YASUO
IPC分类号： H04W84/08 , H04B7/26 , H04W72/04
摘要： PURPOSE:To attain high speed tuning during tuning of talking channel for idle talking channel search by switching a loop band in a PLL frequency synthesizer so that the band is wider in the control channel tuning that the talking channel tuning. CONSTITUTION:During the tuning for idle channel search, a loop band is set to a maximum value A. Thus, whether or not each speech channel is idle is discriminated in a short time. Moreover, during standby of control information or during reception of control information, the loop band is set to an intermediate value B. Then the control information is surely received even while switching in a comparatively short time. Furthermore, the loop band is set to a minimum value C during the talking. Then sufficient voice quality is ensured during the talking.

3. 发明专利

JPH0234047A RADIO TELEPHONE SYSTEM 失效
公开(公告)号：JPH0234047A
公开(公告)日：1990-02-05
申请号：JP18508788
申请日：1988-07-25
申请人： TOSHIBA CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： MIZUDORI YASUO , SAKO YUKIHIRO
IPC分类号： H04W76/02 , H04B7/26 , H04W76/00
摘要： PURPOSE:To simplify and quicken the setting of the operating mode by a subscriber and to improve the operability by providing a mode changeover request transmission means to a radio telephone set and providing a mode changeover request detection means and a mode changeover setting means to a connector. CONSTITUTION:A radio telephone set 10 is provided with a mode switching request transmission means 110 giving a changeover request between the occupancy mode and the nonoccupancy mode to a connector 30. Moreover, the connector 30 is provided with a mode changeover request detection means 307 monitoring the arrival of a mode changeover request sent from the telephone set 10 and a mode changeover setting means 308. When a mode changeover request is detected by the means 307, the means 308 changes over the operating mode of its own set into the occupancy mode or the nonoccupancy mode according to the content of the mode changeover request. Since a subscriber sets the operating mode from the telephone set 10 located nearby as required, the operability of the operating mode setting is improved and the operating mode is set simply and quickly.

4. 发明专利

JPH08304525A RADIO TELEPHONE DEVICE 失效
公开(公告)号：JPH08304525A
公开(公告)日：1996-11-22
申请号：JP11083295
申请日：1995-05-09
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KOBAYASHI HIDEYUKI , MIZUDORI YASUO , TATE KAZUYUKI , TANDA TAKESHI
IPC分类号： G01S5/14 , H04W64/00 , H04Q7/34
摘要： PURPOSE: To provide a radio telephone device for accurately detecting the position where it is located as a point within a radio zone not as a radio zone unit. CONSTITUTION: A radio reception part 16b receives a radio wave from each radio base station(BS) and at the same time measures the level of the reception voltage of the radio wave for each BS. A storage part 16c keeps a radio base station name, an area name which the BS is responsible for, and the station information of BS (X and Y coordinates) for each BS. A comparison part 16d is provided with a propagation distance calculation means and obtains a distance to PS.16 from BS based on a specific numeric expression according to the received voltage of the radio wave which the radio reception part 16b received and the transmission output of BS receiving the radio wave. Further, a comparison part 16d obtains a circle where a calculated distance is a radius for at least three BS's and sets the cross point of the arc of a circle as the current position of PS.16.

5. 发明专利

JPH0258434A POSITION REGISTERING SYSTEM FOR MOBILE RADIO EQUIPMENT 失效
公开(公告)号：JPH0258434A
公开(公告)日：1990-02-27
申请号：JP20986488
申请日：1988-08-24
申请人： TOSHIBA CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： MIZUDORI YASUO , ISHIKAWA TOMOO
IPC分类号： H04B7/26
摘要： PURPOSE:To reduce the trouble such as the collection of a traffic and the sensitivity reduction by comparing the receiving level of a position informing signal from a stored and registered fixed radio equipment and the receiving level of a position informing signal from other fixed radio equipment and changing a fixed radio equipment to be registered in a communication control unit based on the comparison result. CONSTITUTION:For example, a mobile radio equipment 3a counts the number of a position informing signals from other fixed radio equipment 42 received by a receiving level larger than a position informing signal from a position registered fixed radio equipment 41. When the counted value is larger than a prescribed value and the device is in a radio zone 51 of the position registered fixed radio equipment 41, other fixed radio equipment 42 is the shortest and the position registration is updated. For such a reason, the position registration is executed to the radio zone of the fixed radio equipment always at the shortest distance. Thus, the number of moving radio devices 3a-3e registered for a radio zone is not collected to the special one, the collection of the traffic is eased and the call loss can be reduced.

6. 发明专利

JPH08223642A METHOD FOR DECIDING SPEAKING ENABLE ZONE FOR RADIO TELEPHONY EQUIPMENT 失效
公开(公告)号：JPH08223642A
公开(公告)日：1996-08-30
申请号：JP2441995
申请日：1995-02-13
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KITAZAKI AYUKO , MIZUDORI YASUO , TATE KAZUYUKI , AKAZAWA NOBUYUKI
IPC分类号： H04W92/10 , H04Q7/38
摘要： PURPOSE: To exactly decide the speech-enable-zone of radio telephony equipment even when a control signal sent from a radio connector through a control channel is not addressed to an own-station. CONSTITUTION: After any speech channel is selected corresponding to the call originating request of a radio telephone set 10a, a control part 3 of a radio connector 1 reports the selected radio channel and the stop of control channel transmission through the control channel to radio telephone sets 10a and 10b. At such a time, a control part 12 of the radio telephone set 10b changes a transmitter 13 and a receiver 14 inside the radio telephone set 10b from the control channel to any speech channel designated by a speech channel designating signal contained in the signal of control channel transmission stop when the control channel transmission stop signal is received. When the completion of speech is decided, the transmitter 13 and the receiver 14 are switched from the speech channel to the control channel again.

7. 发明专利

JPH0258436A POSITION REGISTERING SYSTEM FOR MOBILE RADIO EQUIPMENT 失效
公开(公告)号：JPH0258436A
公开(公告)日：1990-02-27
申请号：JP20986688
申请日：1988-08-24
申请人： TOSHIBA CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： TANAKA KAZUE , MIZUDORI YASUO , ISHIKAWA TOMOO
IPC分类号： H04W60/00 , H04B7/26
摘要： PURPOSE:To improve a call processing capacity by making the receiving level into a high value for a position registering signal from a mobile radio equipment coincident to the attribute of its own fixed radio equipment, and informing a communication control unit. CONSTITUTION:A prescribed attribute is set at respective fixed radio equipments 41-43 and mobile radio equipments 3a-3e. For example, a fixed radio equipment 41, when the receiving level is the prescribed value or above for the position registering signal from a mobile radio equipment 3a having the attribute coincide to the its own attribute, sends a signal to show the value higher than an actual receiving level to a communication control unit 7. Consequently, by the processing of the mere comparison of the receiving level at the communication control unit 7, the fixed radio equipment 41 to use preferentially to the special mobile radio equipment 3a can be determined. Thus, the processing for the special mobile radio equipment 3a can be simplified and the calling processing capacity as a system can be improved.

8. 发明专利

JPH08294174A DIGITAL TYPE RADIO TELEPHONE SET AND METHOD FOR SELECTING RADIO BASE STATION THEREOF 失效
公开(公告)号：JPH08294174A
公开(公告)日：1996-11-05
申请号：JP9893695
申请日：1995-04-24
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KOMURA HIROTA , MIZUDORI YASUO , TATE KAZUYUKI , CHIBA TOSHIYUKI
IPC分类号： H04W48/16 , H04W48/20 , H04Q7/38 , H04Q7/34
摘要： PURPOSE: To provide a digital type radio telephone set which are capable of reducing selection impossible areas and selecting an optimum radio base station and method for selecting a radio base station thereof. CONSTITUTION: A zone flowing out decision and comparison part 5 detects that a telephone set leaves out of a radio zone (a) when the reception level La of the control signal received from a radio base station A is smaller than the waiting level threshold Lk 2 set to a waiting level threshold register 6. A base station selection and comparison part 8 defines a base station selection level threshold Lw 3 which is the closest to the reception level La and is smaller than the reception level La as the selection reference in place of a base station selection level threshold Lw 2.

9. 发明专利

JPH0294827A POSITION REGISTRATION SYSTEM FOR MOBILE RADIO EQUIPMENT 失效
公开(公告)号：JPH0294827A
公开(公告)日：1990-04-05
申请号：JP24627888
申请日：1988-09-30
申请人： TOSHIBA CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： ISHIKAWA TOMOO , MIZUDORI YASUO
IPC分类号： H04B7/26
摘要： PURPOSE:To prevent the deterioration in the speech quality by comparing a reception level of a position notice signal received from a stationary radio equipment whose position is already registered and from other stationary radio equipment and revising the registered position when the reception level of the latter is larger by a prescribed value or over. CONSTITUTION:After a notice monitor timer is set, e.g., a mobile radio equipment 3a checks whether the position notice signal is received from a stationary radio equipment 41 or other stationary radio equipments 41, 42 when the position notice signal with a prescribed level or over is received from any of the stationary radio equipments 41-43. Then the position notice signal from other stationary radio equipment is checked as to whether it is received at a larger level by a prescribed level or over than the signal from the stationary radio equipment registered already. When the level is received by a larger level with a prescribed value or over, since it represents that the stationary radio equipment moves to a new radio zone, the registered position is revised. Thus, the production level of a disturbing wave due to transmission or reception intermodulation is decreased to ensure the required speech quality.

10. 发明专利

JPH0258435A POSITION REGISTERING SYSTEM FOR MOBILE RADIO EQUIPMENT 失效
公开(公告)号：JPH0258435A
公开(公告)日：1990-02-27
申请号：JP20986588
申请日：1988-08-24
申请人： TOSHIBA CORP , NIPPON TELEGRAPH & TELEPHONE
发明人： MIZUDORI YASUO , ISHIKAWA TOMOO
IPC分类号： H04B7/26
摘要： PURPOSE:To increase a processable traffic quantity by registering a fixed radio equipment with a high receiving level to a communication control unit when a position informing signal from a fixed radio equipment except the registered fixed radio equipment is received by the receiving level higher than the prescribed receiving level. CONSTITUTION:When a radio zone 51 of a position registered fixed radio equipment, for example 41, is only one and the position informing signal from other fixed radio equipment 42 is also received over a prescribed level, it is considered that a mobile radio equipment 3a exists at the position where at least two radio zones 51 and 52 are superimposed. By registering these two radio zones 51 and 52, the radio line can be composed of at least two channels. Thus, the traffic quantity can be increased in which the processing as a system can be performed.

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