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1. 发明专利

JPH08167839A DIGITAL AUTOMATIC PHASE CONTROLLER 失效
公开(公告)号：JPH08167839A
公开(公告)日：1996-06-25
申请号：JP30911094
申请日：1994-12-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： KIMURA KEIJI , NANBA TAKAHIRO
IPC分类号： H04N5/95 , G11B20/02 , H03L7/00
摘要： PURPOSE: To obtain a digital automatic phase controller having compact circuit size by setting up a phase difference between an output and a reference signal to less than a half of a delay unit. CONSTITUTION: Plural delay signals are prepared by delaying an input signal Si by respectively different delay units through plural delay elements 101 to 108 and a delay signal whose phase is close to that of a change point in a reference signal Sr is extracted as a selection signal (b). The signal (b) is inputted as a data input (c) to an FF 124 through a delay gate 121 with delay quantity (td) and the signal Sr is inputted to the clock terminal of the FF 124 through a delay gate 122 with the same delay quantity as a selection circuit 112 and a delay gate 123 with delay quantity 1/2 td to latch the data input (c) and prepare a switching signal (e). On the other hand, the selected signal (b) and a signal (f) delayed by 1/2td through a delay gate 125 are inputted to a switching circuit 126 and switched by the switching signal (e) to obtain an output signal So.

2. 发明专利

JPH0834686B2 失效
公开(公告)号：JPH0834686B2
公开(公告)日：1996-03-29
申请号：JP11305690
申请日：1990-04-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： KISHIDA NORITAKA , KIMURA KEIJI
IPC分类号： H02M3/155 , H03K17/04

3. 发明专利

JPH05108196A CLOCK PULSE SWITCHING CIRCUIT 失效
公开(公告)号：JPH05108196A
公开(公告)日：1993-04-30
申请号：JP27101591
申请日：1991-10-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： KIMURA KEIJI
IPC分类号： G06F1/08 , H03K17/00
摘要： PURPOSE:To obtain a constant switching clock pulse by inputting a signal resulted from the AND between the output of a D flip-flop and a clock pulse switching signal and a signal resulted from the exclusive OR between the output of the D flip-flop and a reference clock pulse in the D flip-flop. CONSTITUTION:Since the output of a D flip-flop 2 results in L, the output of an AND circuit 11 results in L and a pulse A is changed to L from H, the output of an EX.0R circuit 12 is to L from H. At this time, a pulse C is also changed from L to H, however, since the output of the AND circuit 11 is kept to L because of the output L of the D flip-flop 2, the output of the EX.0R circuit 12 is not changed from H at once. The inversion of the output taken place due to the inputting of the EX.OR circuit 12 in the T terminal of the D flip-flop 2, as well as the H of the pulse C are inputted to the EX.OR circuit 12. Then the output of the EX.OR circuit 12 is changed from H to L and thus, the switching operation can be executed while the AND circuit 11 does not supply the change of the pulse C to the EX.0R circuit 12.

4. 发明专利

JPH0328910B2 失效
公开(公告)号：JPH0328910B2
公开(公告)日：1991-04-22
申请号：JP11247884
申请日：1984-05-30
申请人： MITSUBISHI ELECTRIC CORP
发明人： KIMURA KEIJI
IPC分类号： G05D13/62 , H02P29/00

5. 发明专利

JPH02262775A CHARACTER/PATTERN STORING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH02262775A
公开(公告)日：1990-10-25
申请号：JP8503889
申请日：1989-04-03
申请人： MITSUBISHI ELECTRIC CORP
发明人： KIMURA KEIJI , NISHIDA YOSHIHIRO
IPC分类号： H04N5/278 , H04N5/445
摘要： PURPOSE:To reproduce information as a character/pattern picture by providing a circuit to synthesize a signal, which is read from a memory, and an input signal during one cycle operation period of the memory, adding and storing new input information. CONSTITUTION:At the time of an add-on mode, an add-on signal is present and an enable signal (a) from a controller 11 is made H. For example, in the case of 8 bits, the former half of one cycle is read and the contents of a memory 6 in an address to be written are read and latched by a read data latch pulse E. In an OR circuit 17 of 8 bits, the contents are added with data, which are converted by a serial/parallel conversion pulse, and the latter half of one cycle is written to the memory 6. Thus, when the data are written to the memory in such a way, the input information of this time are added to information, which are stored up to the preceding time of operation, stored and go to the pattern/character information of the memory. Then, the information are finally added, superimposed with the other video input and go to a reproduced output.

6. 发明专利

JPS6215884B2 失效
公开(公告)号：JPS6215884B2
公开(公告)日：1987-04-09
申请号：JP5182079
申请日：1979-04-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： SATO HARUNORI , KIMURA KEIJI
IPC分类号： G05F3/16 , G05F3/18

7. 发明专利

JPH04211586A VIDEO RECORDING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH04211586A
公开(公告)日：1992-08-03
申请号：JP4830491
申请日：1991-03-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： KIMURA KEIJI
IPC分类号： H04N5/76 , H04N5/783 , H04N5/93 , H04N5/937
摘要： PURPOSE:To obtain slow motion reproduction which is substantially free from the perpendicular vertical movements of a display screen by the control of the positional relation between a reference signal for writing to a field memory and a horizontal synchronizing signal while averting the drop-out part of the horizontal synchronizing signal. CONSTITUTION:This device has a delay circuit 14 for delaying the reference signal for writing to the field memory 6, a positional relation detecting circuit 15 which detects the positional relation between the reference signal and the horizontal synchronizing signal and a time constant circuit 17 for changing the delay quantity of the above-mentioned delay circuit 14. A changeover switch 18 which selectively changes over the above-mentioned time constant circuit 17 according to the detection result of the above-mentioned positional relation is provided.

8. 发明专利

JPH0426360A SWITCHING POWER CIRCUIT 失效
公开(公告)号：JPH0426360A
公开(公告)日：1992-01-29
申请号：JP12842690
申请日：1990-05-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： KIMURA KEIJI
IPC分类号： H02M3/155 , H03K17/04
摘要： PURPOSE:To improve the efficiency of a power source and reduce its size by arranging separately the base current limitation resistors of a switching transis tor, connecting a capacitor therebetween, and connecting a transistor to which offset voltage is applied from input voltage through the resistors. CONSTITUTION:When a driving transistor TR2 is turned on by a control signal (m) from a switching controller 3, a base current IB1 (n) to turn a switching transistor TR1 on is passed through current limitation resistors R5 and R1. A capacitor C2 is charged by resistors R5 and R7 and the transistor TR1. The current IB1 to which the charging current of the capacitor C2 is added is passed to shorten the turn-on time of the transistor TR1. When the transistor TR2 is turned off, a transistor TR3 is biased by the voltage stored in the capacitor C2 through the resistors R1, R6, R7 and the transistor TR3 is turned on. The discharge current of the capacitor C2 is passed to accelerate emission of the carriers stored in the transistor TR1 and shorten the turn-off time of the transistor TR1.

9. 发明专利

JPH02288777A CHARACTER/PATTERN STORING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH02288777A
公开(公告)日：1990-11-28
申请号：JP11113489
申请日：1989-04-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： NISHIDA YOSHIHIRO , KIMURA KEIJI
IPC分类号： H04N5/278
摘要： PURPOSE:To simultaneously read character pattern information for two pages and to continuously scroll the character pattern information by switching the page to be read each time the maximum address of the page is detected when the information are read from a memory. CONSTITUTION:When the read address of the memory exceeds the maximum address (horizontal address 511 in such a case) of one page, a page maximum address detecting circuit 24 goes to 'H'. When a continuous scroll command signal 26 goes to 'L', a page command signal 25 is a read page switch signal as it is. When the continuous scroll command signal 26 goes to 'H' and the detection of the page maximum address goes to 'L', the page command signal 25 is the read page switch signal as it is. When the detection of the page maximum address is turned to 'H', the inverse of the page command signal 25 is the read page switch signal.

10. 发明专利

JPH02264577A CHARACTER/PATTERN STORING AND REPRODUCING DEVICE 失效
公开(公告)号：JPH02264577A
公开(公告)日：1990-10-29
申请号：JP8503989
申请日：1989-04-03
申请人： MITSUBISHI ELECTRIC CORP
发明人： NISHIDA YOSHIHIRO , KIMURA KEIJI
IPC分类号： H04N5/278 , H04N5/445
摘要： PURPOSE:To scroll the information on the titles, comments, etc., in the case of the application with the photographing jobs of a video camera, etc., by reading out an optical stored character, graphic, etc., with the superposition on a normal video signal. CONSTITUTION:When the storage of the title picture is over, an object is photographed and the video signals are inputted to a character/pattern storage reproducer 17. Simultaneously, a controller 11 resets a horizontal counter 9 and a vertical counter 8 at a scanning starting point based on a synchronously separated synchronizing signal. An offset address designating circuit 15 is designated synchronously with the vertical scan, and the counter 9 presents an offset address at the starting point of the horizontal scan and counts the reference clocks. In this case, the scroll start/stop and the counting start/stop and the direction of the circuit 15 are controlled by a count-up or count-down action.

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