专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明专利

JPH0531898A INK JET RECORDING HEAD 失效
公开(公告)号：JPH0531898A
公开(公告)日：1993-02-09
申请号：JP19413691
申请日：1991-08-02
申请人： CANON KK
发明人： YAMANAKA AKIHIRO , OGAWA MASAHIKO , SAITO ASAO , ISHINAGA HIROYUKI , HAYASHIZAKI KIMIYUKI
IPC分类号： B41J2/05
摘要： PURPOSE:To simplify an electric wiring even in a high-density multi-nozzle by a method wherein functional elements electrically connected to heating resistors, integrated circuits selectively driving the functional elements correspondingly to serial image data, and contacts electrically connecting a substrate to the external equipment are provided on the same substrate. CONSTITUTION:In an electric connection drawing on a heater board, (n) pieces of delivery heaters R1-Rn are provided. Transistors 1015, 1016, logic gates 1023, a latch circuit 1024, and a shift register circuit 1025 are provided so as to be successively connected to the respective delivery heaters R1-Rn. Furthermore, a VH pad 1, a GND pad 2, a stroke pad 3, a latch pad 4, a data pad 5, a clock pad 6, and a logic power source VDD pad 7 are provided so as to be selectively connected to the aforesaid elements and circuits. Namely, the delivery heaters, the functional elements, the integrated circuits, and the electric contacts are provided on the same substrate. In this manner, a high-density multi-nozzle is not complicated in electric wiring, thus being reduced in size, lowered in cost, and improved in reliability.

82. 发明专利

JPS62273683A REPRODUCING DEVICE 失效
公开(公告)号：JPS62273683A
公开(公告)日：1987-11-27
申请号：JP11697386
申请日：1986-05-21
申请人： CANON KK
发明人： OGAWA MASAHIKO , TAKEI MASAHIRO
IPC分类号： G11B5/596 , G11B21/10
摘要： PURPOSE:To attain proper tracking corresponding a tracking feed speed by controlling a means detecting a head output for tracking in response to the result of detection of track feeding speed and a means applying tracking without detection. CONSTITUTION:In applying consecutive feed tracking control maximizing a reproduced envelope level obtained from a head HA and completing it, an ID signal in a reproducing signal obtained from heads HA, HB is obtained from an ID discrimination circuit 15. As a result, whether or not a reproducing signal obtained from the heads HA, HB is a frame signal is discriminated and the signal is in the field recording, the routine is finished and no further tracking control is applied. On the other hand, in case of the frame recording, a level being the sum of HA and HB levels is substituted into the level L in the tracking routine in the consecutive feeding to apply the control. Thus, the optimum tracking is attained.

83. 发明专利

JPS615127B2 JPS615127B2 - 失效
公开(公告)号：JPS615127B2
公开(公告)日：1986-02-15
申请号：JP2065978
申请日：1978-02-24
申请人： Canon Kk
发明人： TSUNEKAWA TOKUICHI , SAKANE TOSHIO , TAGUCHI TETSUYA , OGAWA MASAHIKO , TAMURA SHUICHI
IPC分类号： G01C3/06 , G01C3/00 , G02B7/32 , G03B3/00 , G03B13/36

84. 发明专利

JPS60170005A ERASING DEVICE 失效
公开(公告)号：JPS60170005A
公开(公告)日：1985-09-03
申请号：JP2591384
申请日：1984-02-14
申请人： CANON KK
发明人： OGURA TOKIHIKO , SAKATA TSUGUHIDE , ITOU KAZUHIKO , OGAWA MASAHIKO
IPC分类号： G11B5/008 , G11B5/012 , G11B5/024
摘要： PURPOSE:To attain the record erasion in a short time and with high efficiency by avoiding the generation of a node of an erasion magnetic field at any point on the recording track of a recording carrier in terms of all relative revolutions between a magnetic head and said carrier. CONSTITUTION:An erasion signal source 10 contains an oscillator 11, a ramp wave generator 12 and a multiplier 12. The multiplier 13 performs multiplication between the vibration of a frequency fE of the oscillator and a ramp wave (shown in the figure) of the generator 12. The erasion signal is amplified by a record amplifier 6 via a terminal (c) of a switch S2 and supplied to a recording reproducing head 3 serving also as an erasion head via a terminal (a) of a switch S1. Then the signal recorded on a sheet 1 is erased. Then the relation between the frequency fE and the revolving frequency fV of the sheet 1 is set so that no node is produced for an erasion magnetic field at any point on the recording track of the sheet 1 in terms of all revolutions of the sheet 1.

85. 发明专利

JPS60131678A TRACKING DEVICE 失效
公开(公告)号：JPS60131678A
公开(公告)日：1985-07-13
申请号：JP23937083
申请日：1983-12-19
申请人： CANON KK
发明人： OGAWA MASAHIKO
IPC分类号： G11B5/584 , G11B5/592 , G11B21/10 , H04N5/7826
摘要： PURPOSE:To stabilize a tracking device in level by sampling an envelope signal produced from a reproduction signal with a sampling pulse produced from a horizontal synchronizing signal and producing an error signal to give tracking to a reproduction head. CONSTITUTION:The detection signal fed from a reproduction head 1 is amplified by a preamplifier 2, and one of both signals is supplied to a BPF3 with the other signal applied to a frequency demodulator 5 respectively. The reproduction output signal fed from the head 1 receives the variance in amplitude level, and the envelope signal fed from an envelope detecting circuit 4 is supplied to a control circuit 8. While the signal of the demodulator 5 is supplied to a horizontal synchronizing signal separating circuit 6. The pulses phi1 and phi2 are obtained by a sampling pulse producing circuit 7 and supplied to the circuit 8. The circuit 8 samples and holds the envelope signals of the positions of horizontal synchronizing signals b1 and b1' synchronously with pulses phi1 and phi2 and compares the amplitude values of these envelope signals. Then a control signal is supplied to a piezoelectric element drive circuit 9 so that the head 1 is moved in the direction where the level of the envelope signal is increased. Thus it is possible to obtain a tracking error signal at a stable level and high S/N.

86. 发明专利

JPS6050614A METHOD AND APPARATUS FOR CLEANING HEAD 失效
公开(公告)号：JPS6050614A
公开(公告)日：1985-03-20
申请号：JP15676883
申请日：1983-08-27
申请人： CANON KK
发明人： OGAWA MASAHIKO , MAEDA MASAYA , TEZUKA NOBUO
IPC分类号： G11B5/41 , G11B7/00 , G11B7/004 , G11B9/06
摘要： PURPOSE:To execute cleaning efficiently and precisely by decelerating the rotation of a cleaning member lower than the rotation at the charge of a recording medium when the cleaning member is charged. CONSTITUTION:The titled apparatus is constituted of a motor servo device A, a control device B, a cleaning mode display device C, and a power supply circuit D. When a recording medium such as a magnetic sheet is charged, the motor 6 rotates the recording medium in the normal recording/reproducing mode to record or reproduce a signal. At the charge of the cleaning member such as a cleaning sheet 2' the rotation of the cleaning member is controlled so as to be decelerated lower than the rotation at the recording/reproducing mode.

87. 发明专利

JPS58173426A RANGE FINDER 失效
公开(公告)号：JPS58173426A
公开(公告)日：1983-10-12
申请号：JP5606682
申请日：1982-04-06
申请人： CANON KK
发明人： OGAWA MASAHIKO
IPC分类号： G01C3/06 , G01B11/00 , G01C3/00 , G02B7/32
摘要： PURPOSE:To detect a stable range finding signal level, and also to improve operability and to make a device small-sized, by comparing a photodetected detecting signal with a deciding level. CONSTITUTION:After a switch SW1 is closed, a lens controlling mechanism LCM is not operated and a lens barrel is not moved in a time T1. On the other hand, a signal phi6 from a timer 5 is in a low level during a time T1, a current to a projecting LED is stopped, and after the time T1 passes, the signal phi6 becomes a high level for a time T2, the LED emits light, and also when a driving pulse phi2 is in a low level, the LED does not emit light. When reflected light from an object to be photographed is made incident to a photoelectric converting element SPC by flickering light emission of this LED, a pulse is generated from an operational amplifier OP1, is converted to a detecting signal Sd through a synchronism detecting circuit 4, is compared with a deciding level VS by a comparator CP1 for the time T2, and a range finding signal is outputted. Subsequently, the range finding signal of a near range signal or a far range signal is stored, the mechanism LCM is driven in accordance with the stored value, and photographing is executed.

88. 发明专利

JPS58148577A IMAGE PICKUP AND RECORDING DEVICE 失效
公开(公告)号：JPS58148577A
公开(公告)日：1983-09-03
申请号：JP3122582
申请日：1982-02-26
申请人： CANON KK
发明人： OGAWA MASAHIKO , TEZUKA NOBUO , TAKAYAMA MAKOTO
IPC分类号： G03B19/00 , G11B15/02 , G11B15/10 , G11B19/02 , H04N5/225 , H04N5/765 , H04N5/77 , H04N5/781 , H04N5/91
摘要： PURPOSE:To avoid the useless power consumption, even if the device is started and stopped frequently, by inhibiting the start of a scanning signal source scanning a image pickup means while the characteristic of the recording means is made stable after the recording means is started. CONSTITUTION:When a power switch 14 is applied, a power supply circuit 11 rises, power is applied to a motor control block 15 and a motor 6 is started. When the revolving phase of the motor 6 is synchronized with an output of a synchronizing circuit 3 and the phase locked, then a PL terminal of a motor phase control circuit 4 turns to high level and then a power supply circuit 12 is activated. Thus, the power supply is started to circuits of an image pickup system and the signal processing system early. When the characteristic of the recording means is made stable, the characteristic of the pickup system has been finished and the image pickup is made possible instantly. Thus, even if the pickup and recorder are started or stopped frequently, the useless power consumption is avoided.

89. 发明专利

JPS5893040A RANGE FINDER FOR CAMERA 失效
公开(公告)号：JPS5893040A
公开(公告)日：1983-06-02
申请号：JP19071181
申请日：1981-11-30
申请人： CANON KK
发明人： OGAWA MASAHIKO
IPC分类号： G03B13/36 , G02B7/32
摘要： PURPOSE:To realize range measurement with high precision from a close distance to a long distance regardless of the photographic composition, by having a scan of a projecting element to form an image of the projecting element on a subject onto plural photodetecting elements and then delivering the range measuring signal. CONSTITUTION:In the case of an automatic focusing camera, the photodetecting elements SPC1-SPC4 are provided at the position conjugate to the surface of a film set at the back of a lens L2 or another lens L2 is shifted. An LED scans the range of the SPC1'-SPC4', and the images projected on a subject OB are all formed on the elements SPC1-SPC4 through the lens L2. Thus the range of the images of SPC1'-SPC4' is identical with a viewfield of range measurement at the position of the subject OB. In such a way, the subject OB is scanned by the light projected from the LED and the scanned image is formed at the elements SPC1-SPC4 via the lens L2. Then the range is measured by processing the signals supplied from the elements SPC1-SPC4.

90. 发明专利

JPS5883208A DISTANCE MEASURING DEVICE 失效
公开(公告)号：JPS5883208A
公开(公告)日：1983-05-19
申请号：JP18204081
申请日：1981-11-13
申请人： CANON KK
发明人： OGAWA MASAHIKO , OKINO TADASHI
IPC分类号： G01C3/06 , G01B11/00 , G01C3/00 , G01C3/08 , G02B7/32
摘要： PURPOSE:To reduce the time delay in peak detection and to permit accurate measurement of distance by measuring the time when the sweep light reflected from an object peaks from a reference position. CONSTITUTION:After gains are changed over by the level of a signal S4, a signal S7 is inputted via a low-pass filter 9 to the operational amplifier OP3 of a peak detector 10. When a signal S8 exceeds the (+) input potential S12 of a CP, a transistor 31 is turned off and in follow up to the signal S8 of the output (b), the (-) input of the OP3 charges a capacitor 23 successively. The signal S8 of the output (b) begins to fall from the peak point, but the electric charge charged into the capacitor 23 has no places to escape; therefore the signal 9 is held as it is in the (-) input of the OP3. Thus the OP3 operates like a comparator and when the output S10 thereof passes the peak, the output goes to a low level instantaneously and turns transistors 17, 18, 19, 29 off, thereby deenergizing the coil Mg of a magnet and completing the distance measurement.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式