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41. 发明专利

JPS5521628A SELECTION SYSTEM FOR MAKE BUSY IN TWO UNIT STATIONS 失效
公开(公告)号：JPS5521628A
公开(公告)日：1980-02-15
申请号：JP9453678
申请日：1978-08-04
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE , NIPPON ELECTRIC CO , HITACHI LTD , FUJITSU LTD
发明人： KIMURA NAOHIRO , TANAKA TOSHIO , SENJIYOU TOSHIAKI , ITOU KEN , KAWAKATSU HIDEO
IPC分类号： H04M3/22
摘要： PURPOSE:To realize the make busy selection system for two unit stations in low cost, by using the ACTCOM and the adaptor unit (TREU) simplified than the constitution of conventional automatic concentrated test unit (ACTCOM). CONSTITUTION:To conduct the test related to the incoming trunk (ICT) at the B side exchanger and the incoming register (IR) to ACTCOM from the external unit, when the additional unit selection information reception relay UH is driven for the selection of the ICT busy monitor circuit, ACTCOM delivers ground to the leads corresponding to the incoming register link IRL number and ICT number fed from the external unit to TREU to draw in the leads of the tested unit of B side exchanger and various tests are conducted by connecting ICT with IR. In case of various tests at the A side exchanger, TREU has no relation.

42. 发明专利

JPS5458811A AUTOMATIC POWER FACTOR REGULATOR FOR SELFFEXCITING AC GENERATOR 失效
公开(公告)号：JPS5458811A
公开(公告)日：1979-05-11
申请号：JP12442977
申请日：1977-10-19
申请人： HITACHI LTD
发明人： TANAKA TOSHIO
IPC分类号： H02P9/14 , H02P9/30
摘要： PURPOSE:To adjust the power factor of an AC generator which is operated in parallel with a system by applying the inter-phase voltage of a generator to the Toulon circuit consisting of a capacitor and a resistor and combining this voltage vector and the phase current vector. CONSTITUTION:The 2-to 3-phase voltage of an AC generator is applied to the Toulon circuit consisting of a generator 33, power factor setting resistor 34, and compensating resistor 35 and the two voltage vectors of the same phase and voltage are generated in accordance with the output. Also, phase current is removed from an auxiliary current transformer 7 through a current transformer 6 and power factor deviation signals are obtained by combining these two vectors. By connecting the generator with an automatic voltage regulator, field current decreases at lag power factor and increases at lead power factor. As a result, an arbitrary operation power factor can be set by adjusting the resistor 34 and an economical and compact automatic power factor regulator be obtained without a phase shift transformer.

43. 发明专利

JPS5230382A SEMICONDUCTOR PACKAGE DEVICE 失效
公开(公告)号：JPS5230382A
公开(公告)日：1977-03-08
申请号：JP10680275
申请日：1975-09-03
申请人： NIPPON TELEGRAPH & TELEPHONE , NIPPON ELECTRIC CO , HITACHI LTD , OKI ELECTRIC IND CO LTD , FUJITSU LTD
发明人： IDEMURA AKIRA , YASUDA KEIICHI , HIGAKI YUUJI , TANAKA TOSHIO , TAKAGI TOMOFUMI
IPC分类号： H05K1/18 , H01L23/02 , H01L23/28 , H01L23/32
摘要： PURPOSE:To hold mecanically and hard the semiconductor package on the printed circuit board while holding full electric connection between it's terminal pin and the printed circuit of it's board without degrading the characteristics.

44. 发明专利

JP2000021632A AUTOMATIC DEMAGNETIZING SYSTEM FOR STRUCTURE 失效
公开(公告)号：JP2000021632A
公开(公告)日：2000-01-21
申请号：JP18486298
申请日：1998-06-30
申请人： HITACHI LTD
发明人： ONO ATSUSHI , MURAKAMI HAYATA , TANAKA TOSHIO
IPC分类号： B63G9/06 , B63J99/00 , H01F13/00 , B63J5/00
摘要： PROBLEM TO BE SOLVED: To provide a demagnetizing system for detecting the change in the local permanent magnetism of a hollow structure and maintaining a magnetic field appearing in the outside minimum at all these. SOLUTION: A detection signal of a magnetic detector 5 for individual coil control is divided into an induction component and a permanent component, for the noise and other correction part 14. The change amount of the permanent component is calculated and compared with a target value 9 through a subtracter 10. Power supply to each demagnetizing coil 7 is so controlled that the permanent component becomes equal to the target value 9. A detection signal of a magnetic detector 6 for block coil control is divided into an induction component and a permanent component for the noise and other correction part 22. The change amount of the permanent component is calculated and compared with a target value through a subtracter 16. Then a current command correction signal for block coil control is obtained and added to a signal from a block control system 19 by an adder 21, thereby controlling the current to be conducted to a block coil 8.

45. 发明专利

JPH09116883A VIDEO TELEPHONE SYSTEM 失效
公开(公告)号：JPH09116883A
公开(公告)日：1997-05-02
申请号：JP27000495
申请日：1995-10-18
申请人： HITACHI LTD
发明人： TERADA KOICHI , KUROKAWA YOSHITAKE , HATTORI YASUMASA , TANAKA TOSHIO , YOSHITOMI TAKASHI
IPC分类号： H04N7/15 , H04M3/56
摘要： PROBLEM TO BE SOLVED: To recognize which opposite party is talking among plural call opposite parties by obtaining the physical position of a partial video whose change quantity with a previous frame partial picture in respective video information is the largest on a video display part. SOLUTION: A reception part 72 separately receives video information of plural terminals and receives mixed sound information obtained by mixing sound information of the plural terminals. Sound output means 41 and 42 are arranged near video display means 21 and 22 corresponding to the plural terminals. Position information detection means 142, 143 and 144 obtain change quantity with the previous partial pictures in video information, obtain the physical positions of the partial video whose change quantity is the largest on the video display parts 21 and 22 and execute counting. A sound volume control means 612 sound volume-controls the decoding signals of mixed sound information based on output from the position information detection means so that sound from the sound output means 41 and 42 correspond to the videos from the corresponding video display means and transmits the signals to the sound output means 41 and 42.

46. 发明专利

JPH0973429A COMPUTER SYSTEM AND INTER-BUS CONTROL CIRCUIT 失效
公开(公告)号：JPH0973429A
公开(公告)日：1997-03-18
申请号：JP17620896
申请日：1996-07-05
申请人： HITACHI LTD
发明人： TANAKA TOSHIO , ISHIDA KAZUHISA , KIYOMATSU TETSUO , TSUJIOKA SHIGEO
IPC分类号： G06F13/16 , G06F13/36
摘要： PROBLEM TO BE SOLVED: To decrease the logical scale of the whole computer system which has dual bus structure by evading the repetitive use of a circuit. SOLUTION: In the computer system which has the dual PCT bus structure, an inter-bus control circuit which performs repeating between a 1st PCI bus 200 and a 2nd PCI bus 201 is provided with a memory control mechanism for a memory common to devices connected to the 2nd PCI bus 201 in addition to an inter-bus control function, a memory control mechanism common to devices connected to the 2nd PCI bus 201, and an interruption control mechanism between local processors and they are all mounted on one chip; and the duplication of a decoding circuit, an increase in the number of components, and an increase in mount area are prevented to provide the computer system which is small in size and low in price.

47. 发明专利

JPH08317266A PICTURE INPUT DEVICE 失效
公开(公告)号：JPH08317266A
公开(公告)日：1996-11-29
申请号：JP12214395
申请日：1995-05-22
申请人： HITACHI LTD , HITACHI VIDEO IND INF SYST INC , HITACHI MICROCOMPUTER SYST
发明人： TERADA KOICHI , NISHIOKA KIYOKAZU , TANAKA KAZUHIKO , KUROKAWA YOSHITAKE , FUJIKAWA YOSHIBUMI , HATTORI YASUMASA , HARA MARIKO , ISHII MASAHITO , TANAKA TOSHIO , YOSHITOMI TAKASHI , AGAWA RYUICHI , GOTOU KAZUTATSU
IPC分类号： G03B11/04 , H04N5/225
摘要： PURPOSE: To enable a user to use a device without the anxiety about his privacy by validating a function with only user's direct mechanical operation and giving such structure that the function invalidating operation is automatically performed after the end of work. CONSTITUTION: When starting the use, the user grasps a cover knob part 6 to slide a cover part 2 upward. When the cover part 2 is fully pulled up, an iron plate 5 is attracted to an electromagnet 4, and the cover part 2 is kept open. A picture input part 1 is validated by this operation, and the user can start photographing a picture. When he will terminate the use of the picture input device, he grasps the cover knob part 6 to pull down the cover part 2 or the operation of the electromagnet 4 is stopped based on the support signal from a host computer. Thus, the electromagnet 4 loses the attraction, and the cover part 2 falls downward by its own weight and is moved to the position to shield the picture input part 1. The direct mechanical force is required to open the cover, and the start of operation without user's knowledge doesn't occur.

48. 发明专利

JPH08190622A METHOD AND DEVICE FOR IMAGE PROCESSING 失效
公开(公告)号：JPH08190622A
公开(公告)日：1996-07-23
申请号：JP75895
申请日：1995-01-06
申请人： HITACHI LTD , HITACHI MICRO SOFTWARE SYST
发明人： TANAKA KAZUHIKO , NISHIOKA KIYOKAZU , TERADA KOICHI , KUROKAWA YOSHITAKE , FUJIKAWA YOSHIBUMI , HANEDA KOICHI , NITSUPOU HIROAKI , TSUJIOKA SHIGEO , TANAKA TOSHIO
IPC分类号： G06F3/153 , G06T1/00 , G06T1/20 , G09G5/06
摘要： PURPOSE: To enable an image processing device able to fast transfer image and improve the use efficiency of a bus by mounting a palette converting circuit for converting a logical palette number into a hardware palette number in an image generating circuit. CONSTITUTION: The logical palette conversion part 120 in the image generating circuit 100 performs a logical palette converting process that an OS performs on a CPU 500 through hardware instead, and converts respective pixel values of image data generated by an image generation part 110 into proper hardware palette numbers. At this time, a palette conversion table is referred to by the palette conversion part 120 when the respective pixel values of the image data generated by the image generation part 110 are converted into the hardware palette numbers. In this case, the palette conversion table 121 is actualized by using a RAM and contents from the CPU can be altered.

49. 发明专利

JPH0713533A LSI SIGNAL LINE ALLOCATING SYSTEM 失效
公开(公告)号：JPH0713533A
公开(公告)日：1995-01-17
申请号：JP15327193
申请日：1993-06-24
申请人： HITACHI LTD
发明人： TERADA KOICHI , TANAKA TOSHIO , SAITO KENICHI
IPC分类号： G09G5/22 , G09G5/00
摘要： PURPOSE:To provide a signal line allocating system optimal for connecting both a large capacity VRAM for realizing highly definate and multicolor display and CG for realizing text display to the display control LSI of a personal computer. CONSTITUTION:VRAMs 21 and 22 are divided into a standard part and an expanded part, a signal line for connecting the expanded part VRAM 22 to a display control LSI1 and a signal line for connecting a CG3 to the LSI1 are shared and thereby the one made effective is deciding by switching. Thus, the display control device capable of highly definite and multicolor display and with a text character display function is constructed by using the LSI having a small number of signals terminals.

50. 发明专利

JPH06208544A METHOD AND DEVICE FOR CONTROLLING BUS INTERFACE 失效
公开(公告)号：JPH06208544A
公开(公告)日：1994-07-26
申请号：JP278893
申请日：1993-01-11
申请人： HITACHI LTD , HITACHI VIDEO & INF SYST
发明人： ONO MASATOMO , SHIOBARA TAKESHI , TANAKA TOSHIO , KIJIMA TAKESHI
IPC分类号： G06F13/16 , G06F12/00 , G06F13/42
摘要： PURPOSE:To optimize an access time by predetermining the standard access time of a memory, counting the access time of the memory by a CPU, and varying the standard access time corresponding to the counted time. CONSTITUTION:The CPU 2, when accessing the memory 6, accesses a data buffer 5 first, which then accesses the memory 6 and outputs a ready signal 7 to a zero-wait control part 3 and a wait control part 4 at its end. The standard access time for the access to the memory 6 is predetermined. When the CPU 2 accesses the memory 6, a counter circuit 1 starts counting a bus clock 13 once the access is started and when the counted value of the bus clock 13 at the end of the access by the CPU 2 is in a predetermined zero-wait area, the zerowait control part 3 shortens the standard access time. When the counted value is in a wait area, on the other hand, the wait control part 4 extends it.

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