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71. 发明专利

JPH02254827A PICTURE INFORMATION COMMUNICATION EQUIPMENT, MOBILE OBJECT COMMUNICATION TERMINAL EQUIPMENT, AND COMMUNICATION SYSTEM USING THE SAME 失效
公开(公告)号：JPH02254827A
公开(公告)日：1990-10-15
申请号：JP7511989
申请日：1989-03-29
申请人： HITACHI LTD
发明人： TAKAHARA YASUAKI , OTA GICHU , SUDO SHIGEYUKI
IPC分类号： H04N1/00 , H04B7/26 , H04M11/00 , H04N1/32 , H04W28/04
摘要： PURPOSE:To attain consecutive data communication automatically even in an automobile telephone network by allowing an automobile telephone terminal equipment to detect the interruption of communication during the communication and allowing the data terminal equipment, etc., connected to the automobile telephone terminal equipment to control the updating of an automatic equalizer of a MODEM according to the result of the detection. CONSTITUTION:In a mobile telephone terminal equipment (MSS) 100, a reception signal radio wave is demodulated and detected by a radio receiver 3 via a branching filter 2 from an antenna 1 and becomes a received base band signal. A control signal data detection circuit 5 detects a control data from the received base band signal to send the data to a control circuit 7 and an output circuit 21. The control circuit 7 executes the operation based on the detection signal. The output circuit 21 outputs a signal 15 for a period when a control data is inserted. Moreover, a signal 16 is outputted for a period from the start of the control data till the operation end of the control circuit. A MODEM detects the insertion of a different signal by the instruction of the signal 15 to stop the adaptive operation of an automatic equalizer or an echo canceller and the data terminal equipment 14 recognizes the interruption of a MODEM signal by the instruction of the signal 16 to execute the operation accordingly.

72. 发明专利

JPH0250530A ECHO CANCELLER 失效
公开(公告)号：JPH0250530A
公开(公告)日：1990-02-20
申请号：JP19981288
申请日：1988-08-12
申请人： HITACHI LTD
发明人： EZAKI TOMOHIRO , OTA GICHU
IPC分类号： H04B3/23
摘要： PURPOSE:To inexpensively attain the constitution with the arbitrary number of general purpose DSPs by using plural general purpose DSPs operated by the same software, successively connecting the corresponding data bus through a separating buffer, constituting in a loop shape, and inputting selectively two input data and the data held by a register to a first DSP. CONSTITUTION:The N (from a first to N-th) number of digital signal processings LSI(DSP) 31-33 are connected through separating buffers 21-23 so that the data bus can be loop-shaped as a whole. Further, before a first DSP 31, one separating buffer 20 is provided and at the input side, two registers 25 and 26 are provided. When the data are transmitted and a data output control line is made into an L level, a separating buffer goes to a energized condition and the data can be transmitted to an instantaneously touched DSP. Thus, plural general purpose DSPs to execute the same action can be connected in series and an echo canceller capable of erasing the echo of a long time delay can be inexpensively constituted.

73. 发明专利

JPH01194560A TELE WRITING CONFERENCE SYSTEM 失效
公开(公告)号：JPH01194560A
公开(公告)日：1989-08-04
申请号：JP1700888
申请日：1988-01-29
申请人： HITACHI LTD
发明人： SUDO SHIGEYUKI , OTA GICHU , SASAKI MANABU
IPC分类号： H04N7/15 , H04M9/00 , H04M11/00 , H04N7/14
摘要： PURPOSE:To improve reliability and operability identifying plural drawing picture input persons to a same terminal between the terminals to execute a conference. CONSTITUTION:A control circuit 11 executes control over a whole area concerning drawing picture information in a terminal 1 and builds in an input person detecting circuit 11a. Then, drawing picture input person identifying information obtained by this circuit are added to the inputted drawing picture information and outputted to a MODEM 10. When the terminal 1 is in a drawing picture transmitting condition, the built-in input person detecting circuit 11a supervises an input and output display united type display 12 and the inputs to input tablets 13-15. Then, when the input to any one of them is detected, a code is outputted to specify a drawing picture input device which detects the input. Thus, since the plural drawing picture input persons can be identified between terminals 1 and 2 for drawing picture communication, the reliability and operability of the conference can be improved.

74. 发明专利

JPH01135132A HAND-FREE TELEPHONE SET 失效
公开(公告)号：JPH01135132A
公开(公告)日：1989-05-26
申请号：JP29203487
申请日：1987-11-20
申请人： HITACHI LTD
发明人： EZAKI TOMOHIRO , OTA GICHU
IPC分类号： H04B3/23 , G10L11/00 , G10L15/00 , H04M1/60
摘要： PURPOSE:To start the natural hand-free communication by using a voice output from a means for confirming voice recognition so as to apply the initial training of an adaptive echo signal erasure circuit. CONSTITUTION:Selector switches 8, 10 are disconnected from the position of a hybrid circuit 6 in the confirmation of the result of voice recognition and a voice synthesizer 21 is used to give the user voice at registration to the line input signal of an echo signal erasure circuit 3. The echo signal erasure circuit 3 is started to enter the estimation of a tap coefficient at the same time. On the other hand, the synthesized voice from a speaker is outputted as it is, and when the sounding of the synthesized voice is finished, the echo signal erasure circuit 3 inhibits the updating action of the tap coefficient. The training prior to the talking is finished in this way, the selector switch is connected to the position of the hybrid circuit 6 after the line is connected, the echo signal erasure circuit 3 is started again after entering the talking state to apply the tap revision and to apply so-called hand-free communication. Thus, the natural hand-free communication is started.

75. 发明专利

JPS6450655A LOUDSPEAKER TELEPHONE SET 失效
公开(公告)号：JPS6450655A
公开(公告)日：1989-02-27
申请号：JP20652887
申请日：1987-08-21
申请人： HITACHI LTD
发明人： OTA GICHU , EZAKI TOMOHIRO
IPC分类号： H04B3/23 , H04M1/60
摘要： PURPOSE:To prevent howling due to the reflection on a wall by providing a switch opening a transmission signal path during the audible tone such as bell tone or generated sound generated prior to transmission/reception and closed at talking and operating a speech period echo cancel circuit during the period of the audible tone. CONSTITUTION:A signal sounded by a bell tone generating circuit 12, reflected on a wall and given to a microphone 1 is fed to an echo cancelling circuit 3 and the impulse response of a room or the like is obtained by a tap coefficient deduction circuit 33 sequentially according to a prescribed algorithm. When a hook button switch 17 is depressed, the echo path characteristic at that point of time is stored into a tap coefficient holding circuit 16 to open a switch 8 thereby opening a signal loop, resulting in causing no howling. Moreover, a control circuit 19 detects the stop of a call tone by a detection circuit 13 to close the switch 8 to be communicated with the other party, and the echo cancel circuit 3 studies the echo path characteristic of the room by a ring tone and call tone and starts its operation by taking its tap coefficient as an initial value, then the talking is attained without causing howling.

76. 发明专利

JPS63163498A VOICE DIAL APPARATUS 失效
公开(公告)号：JPS63163498A
公开(公告)日：1988-07-06
申请号：JP30832786
申请日：1986-12-26
申请人： HITACHI LTD
发明人： OTA GICHU , EZAKI TOMOHIRO
IPC分类号： G10L11/00 , G10L15/00 , G10L15/02 , G10L15/28 , H04M1/27

77. 发明专利

JP2002355493A WASHING MACHINE 失效
公开(公告)号：JP2002355493A
公开(公告)日：2002-12-10
申请号：JP2001166007
申请日：2001-06-01
申请人： HITACHI LTD
发明人： MATSUI YASUHIRO , OTA GICHU , KOIKE TOSHIFUMI , KAMANO TOSHIYASU , OBAYASHI SHIRO
IPC分类号： D06F39/00 , D06F33/02
摘要： PROBLEM TO BE SOLVED: To electrically detect the inclination of the installation of a washing machine and the size of vibration. SOLUTION: For a level attached to the outer frame of the washing machine, for which an air bubble is enclosed and tightly sealed in liquid capable of transmitting infrared rays in a container provided with a bottom plate capable of transmitting the infrared rays, a reflection type photo interrupter is turned to an upper surface and attached at the almost center of the bottom surface.

78. 发明专利

JP2002315991A WASHING MACHINE 失效
公开(公告)号：JP2002315991A
公开(公告)日：2002-10-29
申请号：JP2001124559
申请日：2001-04-23
申请人： HITACHI LTD
发明人： OBAYASHI SHIRO , KOIKE TOSHIFUMI , OTA GICHU , KAMANO TOSHIYASU , KOYAMA TAKAMI , HIYAMA ISAO , SHIMAZAKI NORIKO , HISAMURA KAYO
IPC分类号： D06F33/02 , D06F39/02
摘要： PROBLEM TO BE SOLVED: To improve a washing force by uniformly infiltrating a detergent of high-concentration into laundry. SOLUTION: After the high-concentration detergent 4 is poured in the central part of a washing tank 2, the washing tank 2 is rotated at a low speed so that the detergent is uniformly infiltrated into the laundry by a gravity, a centrifugal force, and a capillarity acting on the high-concentration detergent.

79. 发明专利

JP2002119796A WASHING MACHINE 失效
公开(公告)号：JP2002119796A
公开(公告)日：2002-04-23
申请号：JP2000318897
申请日：2000-10-19
申请人： HITACHI LTD
发明人： OBAYASHI SHIRO , KOIKE TOSHIFUMI , OTA GICHU , KAMANO TOSHIYASU , KOYAMA TAKAMI , HIYAMA ISAO
IPC分类号： D06F39/08 , D06F17/04 , D06F33/02
摘要： PROBLEM TO BE SOLVED: To reduce irregular rinse in a shower rinsing. SOLUTION: A plurality of shower nozzles are made in a showerhead 31 for performing the shower in a spinning tub 5. Water passage into clothes 102 stacked thick at a corner part is increased to reduce irregular rinsing by increasing the quantity of shower 36a and 36c sprayed toward an outer circumferential part of a bottom wall surface compared with the shower 36b sprayed toward a side wall surface of the spinning tub 5.

80. 发明专利

JP2001293284A WASHING MACHINE 失效
公开(公告)号：JP2001293284A
公开(公告)日：2001-10-23
申请号：JP2000117175
申请日：2000-04-13
申请人： HITACHI LTD
发明人： OTA GICHU , KOIKE TOSHIFUMI , WATANABE MASAO , HISAMURA KAYO , SHINKO YASUSHI , HOSOKAWA ATSUSHI , KOIBUCHI HIROYUKI , TAKAMUNE YUICHIRO
IPC分类号： D06F33/02 , D06F37/42 , D06F39/00 , D06F39/08 , D06F39/12
摘要： PROBLEM TO BE SOLVED: To provide a washing machine easy to handle and mounted with a low cost voice informing function and enabling a user to freely listen to a voice of what the user wants to know by a simple operation. SOLUTION: This washing machine comprises a process control means consisting of a microcomputer 50 for controlling each of processes of the washing machine, an external ROM 85 connected to the microcomputer 50 to store previously encoded multiple voice data, a voice output means connected to the microcomputer 50 and consisting of a low-pass filter 88, and amplifier 89, and a speaker 18, and a vocalizing switch for directing to vocalize. A program for decoding the voice data is stored in a program ROM in the microcomputer 50.

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