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1. 发明专利

JPS5542444A SIGNAL TRANSMISSION SYSTEM 失效
公开(公告)号：JPS5542444A
公开(公告)日：1980-03-25
申请号：JP11576178
申请日：1978-09-22
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , FUJITSU LTD
发明人： MAEDA YUUZOU , IWASE YASUMASA , SHIRAISHI YOSHIKATSU , SHIRASAWA SUSUMU , FUJII KENSAKU
IPC分类号： H04Q1/45
摘要： PURPOSE:To omit the selector and the delay circuit and thus to decrease the hardware quantity by using the circuit which selects and mixes the two frequency signals in case the single-frequency signals are transmitted. CONSTITUTION:Selectors 6a and 6b are provided to select one or two units among the plural number of the single-frequency signals, along with adder 7 which adds the signals selected by selectors 6a and 6b plus control circuit 8 which generates the selection signals for 6a and 6b based on the signal selection information given from outside. Thus the selection signals are delivered to selectors 6a and 6b according to the signal types to be selected through circuit 9, and the frequency signals generated through selectors 6a and 6b are added together at adder 7 to deliver the two frequency signals through adder 7.

2. 发明专利

JPS5391507A BUCKET MULTIPLEXING SYSTEM 失效
公开(公告)号：JPS5391507A
公开(公告)日：1978-08-11
申请号：JP592177
申请日：1977-01-24
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , NIPPON ELECTRIC CO
发明人： MAEDA YUUZOU , SHINOOKA MAKOTO , KANASHIGE KUNIOKI , ITOU KIICHIROU
IPC分类号： H04L5/22 , G06F13/00 , H04L12/951
摘要： PURPOSE:To improve the processing efficiency of a bucket multi-plexing device in which a H-procedure terminal and terminal for the procedure except the H procedure are installed.

3. 发明专利

JPS52106242A CHARACTER MULTIPLE COMMUNICATION SYSTEM 失效
公开(公告)号：JPS52106242A
公开(公告)日：1977-09-06
申请号：JP2342276
申请日：1976-03-04
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , FUJITSU LTD
发明人： MAEDA YUUZOU , KANASHIGE SHIYUUKI , ISOGAI TETSUJI , TOMIOKA MASAMI , ARIMA SHIYUUHEI
IPC分类号： H04J3/24 , G06F3/00 , G06F13/00 , H04L5/22
摘要： PURPOSE:To provide character transfer request generation circuit having memory at terminal of communication transfer unit and to calculate the data with a fixed cycle. As a result, the delay of transmission route is eliminated for request signal as well as under-run probability can be reduced regardless of the transmission distance.

4. 发明专利

JPS52106203A CHARACTER MULTIPLICATION UNIT 失效
公开(公告)号：JPS52106203A
公开(公告)日：1977-09-06
申请号：JP2342176
申请日：1976-03-04
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , FUJITSU LTD
发明人： MAEDA YUUZOU , SASAOKA MAKOTO , HASEGAWA TSUTOMU , USUKURA TATSUO , ARIMA SHIYUUHEI
IPC分类号： H04J3/24 , H04J3/06 , H04L5/22
摘要： PURPOSE:To decrease over-and under-run of buffer and thus to realize effective utilization of transmission route for the data transmission system by adding transmission buffer to multiplication unit.

5. 发明专利

JPS53141505A REMOTE TEST DIAGNOSIS SYSTEM 失效
公开(公告)号：JPS53141505A
公开(公告)日：1978-12-09
申请号：JP5600977
申请日：1977-05-17
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE , HITACHI LTD
发明人： TOMIOKA MASAMI , KANASHIGE KUNIOKI , MAEDA YUUZOU
IPC分类号： H04B1/74 , G06F11/22 , G06F13/00 , H04L12/26 , H04L29/14
摘要： PURPOSE:To make it possible to execute the test diagnosis of a standby-system instrument easily, by containing a maintenance terminal as well as a general data terminal in a duplex communication controller of the remote-arrangement type.

6. 发明专利

JPS53130945A SELECTION AND CONTROL SYSTEM FOR SYSTEM 失效
公开(公告)号：JPS53130945A
公开(公告)日：1978-11-15
申请号：JP4616677
申请日：1977-04-20
申请人： NIPPON ELECTRIC CO , NIPPON TELEGRAPH & TELEPHONE , HITACHI LTD
发明人： ITOU TAMIO , KANASHIGE KUNIOKI , MAEDA YUUZOU
IPC分类号： G06F11/20 , G06F11/00
摘要： PURPOSE:To make easy the unit design, by placing system selection FF's for the both of duplex systems, and by making effective only one system selection FF through the designation of jumper wiring in the jumper circuit.

7. 发明专利

JPS5391545A REMOTE DIAGNOSIS SYSTEM 失效
公开(公告)号：JPS5391545A
公开(公告)日：1978-08-11
申请号：JP592077
申请日：1977-01-24
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , NIPPON ELECTRIC CO
发明人： MAEDA YUUZOU , KANASHIGE KUNIOKI , USUKURA TATSUO
IPC分类号： G06F11/22 , G06F3/00 , G06F11/00 , G06F13/00
摘要： PURPOSE:To obtain the communication control part involving three diagnostic functions with the use of a small amount of hardware by causing the communication control part to send back the answer which containes a trouble status against the processing-part stop commands from a central processing unit.

8. 发明专利

JPS52116101A PACKET MULTIPLICATION UNIT 失效
公开(公告)号：JPS52116101A
公开(公告)日：1977-09-29
申请号：JP3266576
申请日：1976-03-26
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： HEITOU KOUSHI , SUGANO MINORU , MAEDA YUUZOU , SASAOKA MAKOTO
IPC分类号： H04L5/22 , G06F13/00 , H04L12/801 , H04L12/911
摘要： PURPOSE:To perform address designation for the buffer corresponding to data terminal with reduced load of processing section by adding store register and address conversion circuit, and thus to realize high-speed operation of data.

9. 发明专利

JPS5542442A MULTIIFREQUENCY SIGNAL TRANSMISSION SYSTEM 失效
公开(公告)号：JPS5542442A
公开(公告)日：1980-03-25
申请号：JP11575878
申请日：1978-09-22
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD , NIPPON ELECTRIC CO , FUJITSU LTD
发明人： MAEDA YUUZOU , IWASE YASUMASA , MIYOSHI TATSUROU , FUKUI AKIRA , FUJII KENSAKU
IPC分类号： H04Q1/45 , H04Q1/457
摘要： PURPOSE:To secure transmission of the multi-frequency signals to the continous time slots with a reduced amount of the hardware by producing and memorizing all multi-frequency signals via the time slots and in a nonsynchronising way and then selecting one signal designated from outside among those multi-frequency signals for transmission. CONSTITUTION:The type of the multi-frequency signal to be transmitted to the time slot is written into order memory 16 via the external device and based on the address of memory 16 corresponding to the time slot number. Also the single-frequency signals are generated through control circuit 14 for all conceivable combinations of the single-frequencies previously in order to select two units of the single- frequency signals via selectors 9a and 9b. These selected signals are then mixed up at adder 10 to produce the multi-frequency signal. This multi-frequency signal is multiplied by multiplier by the level signal sent from register 13 to be written into buffer memory 18. After this, memory 16 is read out via circuit 14 and with every time slot through selector 15, and the multi-frequency signal to be sent to the time slot is read out from memory 18 based on the contents of memory 16.

10. 发明专利

JPS5735449A Regulating system for message transmission 失效
标题翻译：信息传输调节系统
公开(公告)号：JPS5735449A
公开(公告)日：1982-02-26
申请号：JP10931680
申请日：1980-08-11
申请人： Hitachi Ltd
发明人： MAEDA YUUZOU
IPC分类号： H04L12/56
CPC分类号： H04L12/56
摘要： PURPOSE:To regulate message transmission, by counting the residual message with each stored exchanger in a network and rejecting the message input when the count value is more than a prescribed value. CONSTITUTION:When a transmission request from a terminal 3a to a terminal 3b exists, a packet exchanger 1a checks if the number of stored messages exceeds a prescribed value through a counter 4a. If exceeds, the transmission is rejected and if not, a message MES is stored in a reception storage device 2a to set the value of the counter 4a to +1. Next, the packet exchanger 1a picks up the message MES and transmits it to a packet exchanger 1b, which stores it in a storage device 2b and transmits it to the terminal 3b. When the transmission is finished, a transmission completion information ES is transmitted from the device 1b to the 1a, which subtracts the value of the counter 4a by one. Thus, the stored message number can be checked and the transmission can be regulated.
摘要翻译：目的：通过对网络中存储的每个交换机进行的剩余消息进行计数来调节消息传输，并在计数值超过规定值时拒绝消息输入。构成：当存在从终端3a到终端3b的发送请求时，分组交换机1a通过计数器4a检查存储的消息的数量是否超过规定值。如果超过，则发送被拒绝，如果不是，则将消息MES存储在接收存储装置2a中，以将计数器4a的值设置为+1。接下来，分组交换机1a拾取消息MES并将其发送到分组交换器1b，分组交换机1b将其存储在存储设备2b中并将其发送到终端3b。当发送完成时，发送完成信息ES从设备1b发送到1a，将计数器4a的值减去1。因此，可以检查存储的消息号码并且可以调节传输。

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