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1. 发明专利

JPS6219098B2 失效
公开(公告)号：JPS6219098B2
公开(公告)日：1987-04-27
申请号：JP11132479
申请日：1979-08-31
申请人： FUJITSU LTD
发明人： TSUDA TATSU , HATSUTORI MICHIMITSU , MORITA SHUZO , FUKUDA HARUKI
IPC分类号： H04B10/00 , H04B10/80 , H04M1/00 , H04M1/26 , H04M3/00 , H04Q3/72

2. 发明专利

JPS5592094A VOICE DATA SIMULTANEOUS TRANSMISSION SYSTEM 失效
公开(公告)号：JPS5592094A
公开(公告)日：1980-07-12
申请号：JP16230978
申请日：1978-12-29
申请人： FUJITSU LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： TSUDA TATSU , HATSUTORI MICHIMITSU , MORITA SHIYUUZOU , FUKUDA HARUKI , YUMIBA HIDEAKI
IPC分类号： H04J3/17 , H04M11/06 , H04Q11/04
摘要： PURPOSE:To make it possible to transmit simultaneously voice and data and make it possible to eliminate troubles such as economic disadvantage, deterioration of use efficiency and a large delay by inserting data to voice information as required. CONSTITUTION:The output of transmitter 11 is connected to A/D converter 12, and the output is branched and supplied to parallel-series converter 13 and selector 14. Meanwhile, the output of data terminal 15 is stored in buffer memory 17 through interface 16. Memory 17 is controlled by clock pulse generator 18 and gates 19 and 20, and FF circuit 21 is set by the output of memory 17 and is reset by timer 22. FF circuit 21 is connected to not only selector 14 and differentiating circuit 23 but also one input terminal of gate 20 through delay circuit 24. Parallel-series converter 13 and differentiating circuit 23 are connected to unipolar/bipolar converter 25, and the output of converter 25 is transmitted to the subscriber's line.

3. 发明专利

JPS607422B2 失效
公开(公告)号：JPS607422B2
公开(公告)日：1985-02-25
申请号：JP9583477
申请日：1977-08-10
申请人： FUJITSU LTD
发明人： TSUDA TATSU , YATSUHOSHI AKIMASA , MORITA SHUZO , YAMAUCHI KYOJI , MURAKAMI KOZO
IPC分类号： H04N1/32 , G06F5/06 , H04L13/08 , H04L25/05

4. 发明专利

JPS5636245A OPTICAL POWER FEEDING SYSTEM 失效
公开(公告)号：JPS5636245A
公开(公告)日：1981-04-09
申请号：JP11132679
申请日：1979-08-31
申请人： FUJITSU LTD
发明人： TSUDA TATSU , HATSUTORI MICHIMITSU , MORITA SHIYUUZOU , FUKUDA HARUKI
IPC分类号： H02J17/00 , H04B10/00 , H04B10/80 , H04M19/00
摘要： PURPOSE:To make it possible to supply electric power even if the subscriber's line is constituted with an optical fiber, by supplying electric power as the photosignal from the exchange side. CONSTITUTION:In exchange 1, the photosignal of wave length lambda1 from light emitting element 11 for power supply is applied to photocoupler 13 corresponding to each optical fiber 2 by light distributor 12, and the call signal is converted to a photosignal of wave length lambda2(lambda2not equal to lambda1) by light emitting element 14 for signal and is applied to photocoupler 13, and these photosignals are transmitted to telephone set 3 through the optical fiber. In telephone set 3, the photosignal of wave length lambda1 is separated by branching filter 31 and is applied to photoelectric conversion power source part 32, and the photosignal is converted to electric power, and this electric power is supplied to telephone set circuit 33, and the photosignal of wave length lambda2 is separated by branching filter 31 and is applied to telephone set circuit 33, and the photosignal is converted to an electric signal by the photoelectric conversion part in the telephone set circuit and is supplied to the receiver.

5. 发明专利

JPS55110494A PARALLEL TYPE TIME SHARING EXCHANGING COMMUNICATION PATH 失效
公开(公告)号：JPS55110494A
公开(公告)日：1980-08-25
申请号：JP1877379
申请日：1979-02-20
申请人： FUJITSU LTD
发明人： TSUDA TATSU , HATSUTORI MICHIMITSU , MORITA SHIYUUZOU , NAKAMURA YOSHIHIRO , ONDA NOBUHIKO
IPC分类号： H04Q11/04
摘要： PURPOSE:To reduce the hardware, by dividing the access cycle of path memory, synchronizing the processor and the path memory without providing the interface circuit, and controlling the path memory directly with the processor. CONSTITUTION:The information of primary highway 2 is written in the path memory 6 under the control of the microprocessor 1 and read out to the secondary highway 5, and exchanging operation is made in time sharing by replacing the time slot between the highways 2 and 5. In parallel with the memory 6, the control memory 18 writing in the control information delivered to the highway 5 and the memory control memory 13 controlling the selective delivery to the high way 5 between the output of the memories 6 and 18 are provided, the memory cycle of the memory 6 is divided into three. The processor 1 directly reads out the content of the memory 6 in synchronizing with the clock of the processor 1, enabling to read in the control information of the highway 2 from the memory 6 under delivery of the control information to the highway 5 by the processor 1.

6. 发明专利

JPS5429504A SIMULTANEOUS SERVICE SYSTEM FOR AUDIO AND DATE COMMUNICATION 失效
公开(公告)号：JPS5429504A
公开(公告)日：1979-03-05
申请号：JP9468577
申请日：1977-08-09
申请人： FUJITSU LTD
发明人： TSUDA TATSU , YATSUHOSHI AKIMASA , MORITA SHIYUUZOU , YAMAUCHI KIYOJI , MURAKAMI KOUZOU
IPC分类号： H04L12/64 , H04Q11/04
摘要： PURPOSE:To make efficient the audio and data simultaneous service, by digitalizing the information at subscriber terminals receiving audio information, giving priority to each audio block, deleting the blocks having lower priority, and performing transmission after replacing into data block.

7. 发明专利

JPS5378157A DELTA MODULATIO CIRCUIT 失效
公开(公告)号：JPS5378157A
公开(公告)日：1978-07-11
申请号：JP15450076
申请日：1976-12-22
申请人： FUJITSU LTD
发明人： TSUDA TATSU , YAMAUCHI KIYOJI
IPC分类号： H03M3/02
摘要： PURPOSE:To increase the transmission quality with lower clock frequency, by obtaining the difference between the input analog signal and the analog signal delayed for a given time and by comparing the output of the local decoder with the difference, in the delta modulating circuit modulating the analog signal into digital signal.

8. 发明专利

JPS5176069A Ronrikairo 失效
公开(公告)号：JPS5176069A
公开(公告)日：1976-07-01
申请号：JP99275
申请日：1974-12-26
申请人： Fujitsu Ltd
发明人： TSUDA TATSU , KUBOTA SHIGEKI , HIRATSUKA YOSHITAKA , FUKUDA HARUKI
IPC分类号： H03K19/0175 , H03K5/13 , H03K19/08 , H03K19/086

9. 发明专利

JPS6147038B2 失效
公开(公告)号：JPS6147038B2
公开(公告)日：1986-10-17
申请号：JP9468577
申请日：1977-08-09
申请人： FUJITSU LTD
发明人： TSUDA TATSU , YATSUHOSHI AKIMASA , MORITA SHUZO , YAMAUCHI KYOJI , MURAKAMI KOZO
IPC分类号： H04L12/64 , H04Q11/04

10. 发明专利

JPS5541004A TERMLINAL CONTROL SYSTEM 失效
公开(公告)号：JPS5541004A
公开(公告)日：1980-03-22
申请号：JP11355478
申请日：1978-09-18
申请人： FUJITSU LTD
发明人： TSUDA TATSU , HATSUTORI MICHIMITSU , MORITA SHIYUUZOU , ONDA NOBUHIKO
IPC分类号： H04L29/00 , H04M11/00 , H04M11/06
摘要： PURPOSE:To enable to control the terminals of opposing parties easily through the transmission of terminal control information independently and simultaneously of the communication data, by providing the control channel separately with the data transmission communication channel. CONSTITUTION:Within the audio band, the terminal control channel is provided separately with the communication channel. Further, at data transmission at first, the transmission system of control channel consists of the path of the filter 6b relay contact RL2 modulator 10 and the reception system is made up of the path of the contact RL2 filter 6a decoder 7. Accordingly, when opposing side is controlled, the control channel is controlled to deliver to opposing side through the modulator 10 by the key 11. On the other hand, the control signal received from opposing party at the data transmission, is inputted to the decoder 7 via the filter 6a, and it is decoded to activate the buzzer 8, or it is displayed on the display 9. The use of the frequencies fL or fH of the control channel for the transmission and reception is preset to select it by the relay 5b.

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