公开(公告)号：JPS62176235A

公开(公告)日：1987-08-03

申请号：JP1720386

申请日：1986-01-29

Applicant: TOSHIBA CORP

Inventor： UNO SHINTARO ,  NAKAMURA MAKOTO ,  TAKADA TAIJI

IPC: H04J3/00

Abstract: PURPOSE:To attain the data communication between a master station and a slave station with less propagation delay by switching the system into a time division multiplex system when data collision takes place between slave stations due to increased traffic or the occurrence of data collision is estimated. CONSTITUTION:A radio channel is sectioned into a time slot of a prescribed length and plural slave stations S1-S5 send a data at random to the master station in synchronism with the time slot. When the traffic of the radio channel is increased and the data collision takes place between the slave stations or the occurrence of data collision is expected, the system is changed over into the time division multiplex system.

公开(公告)号：JPH09233150A

公开(公告)日：1997-09-05

申请号：JP4015396

申请日：1996-02-27

Applicant: TOSHIBA CORP

Inventor： UNO SHINTARO ,  KAGAYA SATOSHI

IPC: G06F9/06 ,  G06F13/00 ,  H04L29/06

Abstract: PROBLEM TO BE SOLVED: To generate a sequence chart including a signal state or the like on the way of transmission efficiently by storing a mark to a part at which occurrence of a transmission line fault is predicted onto a normal system sequence chart and inserting a quasi-normal system sequence chart to the position. SOLUTION: A sequence chart is given to an input section 21 to input a normal system in a communication protocol to a description section 22. Data of corresponding protocol description from a charge generating section 24 are read from a database 25. A mark is given to a part where occurrence of a transmission line fault is predicted in the chart described by the normal system protocol and the result is stored in the database 25. When no signal is received due to occurrence of a fault, a quasi-normal system is given to a quasi-normal description section 23. After analysis of protocol logic, when the quasi-normal system is inserted to the normal system, the mark is detected from the chart and the quasi-normal system protocol is inserted to the position. As a result the description of the quasi-normal system is set formally similarly to the case with the normal system.

公开(公告)号：JPH09219685A

公开(公告)日：1997-08-19

申请号：JP2558196

申请日：1996-02-13

Applicant: TOSHIBA CORP

Inventor： UNO SHINTARO

IPC: H04H20/78 ,  H04H20/81 ,  H04H20/95 ,  H04J3/00 ,  H04L1/00 ,  H04N7/16 ,  H04N21/2383 ,  H04N21/478 ,  H04H1/08

Abstract: PROBLEM TO BE SOLVED: To attain data transmission accurately by making communication of transmission data denoting presence or absence of error correction information with a slave station depending on presence/absence of detection of an event affecting transmission data. SOLUTION: An error correction time slot discrimination section 24 discriminates presence/absence of error correction in a transmission data format totally for an input (a) from a BER characteristic measurement section 21 at a period T, an input (b) from a clock measurement section 22 at a period T' and an input (c) from a service area setting section 23 and provides an output of a transmission format changeover control signal. The control signal is given to a TDM demodulation section 28 and an error correction section 29 so as to identify by which transmission format data are sent from a customer station and whether or not error correction is required and await the processing. On the other hand, A frame synchronization bit pattern F or F' is generated through the reception of the control signal from the discrimination section 24 to a frame synchronization bit generating section 25 and fed to a TDM modulation section 27. Extract information data from a control section 26 are given to the modulation section 27. The data above are processed altogether and the resulting data are sent to an opposite customer station as a time division multiplex signal.

公开(公告)号：JPH02202130A

公开(公告)日：1990-08-10

申请号：JP2104589

申请日：1989-01-31

Applicant: TOSHIBA CORP

Inventor： IWASAKI HIDETOSHI ,  UNO SHINTARO

IPC: H04M3/00 ,  H04B7/208

Abstract: PURPOSE:To reduce the number of times of cut of an immediate call by allocating a carrier for the immediate call starting from a band area with low probability by an immediate call allocation means when the allocation of the immediate call is available. CONSTITUTION:The allocation of the immediate call and that of a reserve call are performed by finding the probability in which at least one of the immediate calls already allocated for the band area for reserve call is cut by the start of the service of the reserve call based on the identified result of a null time from the present to the start of the service of the reserve call. The feasibility of the allocation of the immediate call and the reserve allocation of the reserve call is judged based on the probability, and they are executed based on the above judgement. The allocation of the immediate call is performed by allocating the carrier for the immediate call starting from the band area with low probability when the allocation of the immediate call is available. In such a way, the band area and a power can be used with high efficiency even when limitation for band width and the power for a repeater exist, and also, the number of times of cut of the immediate call allocated for the band area for reserve call can be reduced.

公开(公告)号：JPS63246945A

公开(公告)日：1988-10-13

申请号：JP7962487

申请日：1987-04-02

Applicant: TOSHIBA CORP

Inventor： UNO SHINTARO ,  NAKAMURA MAKOTO

Abstract: PURPOSE:To accurately verify the system information of each node in a short time by applying multiple address transmission for system information of a node to other node and receiving the result of comparison of system information of other node from other node. CONSTITUTION:In applying multiple address transmission for system information to other node, other node verifies the system information of one node. The result of comparison between the sent system information and the system information of other node is received to discriminate whether or not the system information of its own node is correct. Moreover, when it is discriminated that the information of the transmission node is correct, the correction of data is instructed to a node sending the result of comparison noncoincident with the sent node so as to correct the erroneous system information of other node. Furthermore, when it is discriminated that the sent data is not correct, the transmission right is transferred to the node sending the result of comparison noncoincident with the sent node to allow the other node to send the correct system information with high probability.

公开(公告)号：JPS6342245A

公开(公告)日：1988-02-23

申请号：JP18521086

申请日：1986-08-08

Applicant: TOSHIBA CORP

Inventor： UNO SHINTARO

Abstract: PURPOSE:To automatically execute switching from a main control station to a subcontrol station by constituting the titled system so that a control station sends out a switching signal to the subcontrol station, when a fault is occurred in a main control station, confirms a fact that a confirming signal from the main control station does not exist, and the subcontrol station starts actually a line control. CONSTITUTION:When a fault is occurred in a main controls station B, first of all, a control station A cannot receive a response signal b1. Therefore, the control station A confirms fact that a response signal b2 from a subcontrol station C can be received, and sends out a switching signal a2' to subcontrol station C. The subcontrol station C receives the switching signal a2', and sends out actually a line control signal c1, only when a confirming isignal from the main control station is not received, and simultaneously, sends out the response signal b2 to the control station A. The subcontrol station C receives in advance line control signals C1, C1', therefore, a reference signal sending-out timing To and line control information can become the same as those of the main control station B. Also, the control station A sends out continuously a switching signal a1' to the main control station B having no response signal.

公开(公告)号：JPS621331A

公开(公告)日：1987-01-07

申请号：JP13890385

申请日：1985-06-27

Applicant: TOSHIBA CORP

Inventor： UNO SHINTARO ,  NAKAMURA MAKOTO

IPC: H04B7/14

Abstract: PURPOSE:To decrease the connecting time of a call even at link busy state by reserving a generated call even when all lines are closed and allocating an idle line to the said call just after one of the lines is idle. CONSTITUTION:When a station 2 being a calling earth station requests the assignment of an idle line to a station 1 being a centralized control station via a satellite for simultaneous communication, the station 2 sends a line assignment request signal (x). When no idle line exists in the station 1, the call corresponding to the signal (x) is reserved. When calls (y, z) to general communication are sent from other station 2, they arrive at times t3, t4. When one of operating lines is finished at a time t5 and the number of the operating lines changes from N to N-1, the station 1 assigns the line to the reserved call, that is, the call sending a line assignment request signal (x) for simultaneous communication.

公开(公告)号：JPS6162250A

公开(公告)日：1986-03-31

申请号：JP18491584

申请日：1984-09-04

Applicant: Nippon Telegr & Teleph Corp ,  Toshiba Corp

Inventor： KATO SHUZO ,  UNO SHINTARO ,  NAKAMURA MAKOTO ,  SUZUKI HIDEO

IPC: H04J1/05 ,  H04J4/00

CPC classification number: H04J4/005

Abstract: PURPOSE:To reduce a hardware by applying a common modulator-demodulator circuit using a digital transmultiplexer for inserting a converting circuit, which converts a sampling frequency. CONSTITUTION:A FDM (frequency division multi) signal is sampled by an A/D converter 2 and converted into a digital signal. The FDM signal converted to the digital signal is inputted to a digital transmultiplexer 3 and converted into a time division multi (TDM signal). The digital transmultiplexer 3 channel- separates the inputted FDM signal. Furthermore, after the FDM signal is converted into a based band signal, it is taken as a TDM signal by sampling each channel signal, inputted to an interpolation orthogonalized filter 4, led to a demodulating circuit 5 and a data signal of the plural number of the original channel is demodulated and regenerated.

Abstract translation: 目的：通过使用数字多路复用器应用通用调制解调器电路来插入转换采样频率的转换电路来减少硬件。 构成：FDM（分频多路）信号由A / D转换器2采样并转换为数字信号。 被转换为数字信号的FDM信号被输入到数字多路复用器3并转换成时分多路复用（TDM信号）。 数字多路复用器3通道分离输入的FDM信号。 此外，在将FDM信号转换为基带信号之后，通过对输入到内插正交滤波器4的每个信道信号进行采样，将其作为TDM信号，将其解调电路5和数个多个 原始信道被解调和再生。