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公开(公告)号：JP2002152466A
公开(公告)日：2002-05-24
申请号：JP2000347026
申请日：2000-11-14
Applicant: CANON KK
Inventor： YOSHIDA TAKEHIRO , TERAJIMA HISAO
IPC: G03G15/01 , G03G15/04 , G03G15/043 , G06T1/00 , H04N1/04
Abstract: PROBLEM TO BE SOLVED: To suppress a color drift of each color in a sub-scanning direction when the color of a light irradiating an object is switched and an image is read. SOLUTION: LEDs 108 to 110 illuminate an original with a width of a certain degree in the sub-scanning direction. A line sensor has a width in the sub- scanning direction. If a reading width occurs symmetrically to the sub-scanning direction of an optical axis, the LEDs 108 to 110 are lit at prescribed timing to increase parts to be superposed of reading ranges of the respective colors.
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公开(公告)号：JPH11298673A
公开(公告)日：1999-10-29
申请号：JP9894798
申请日：1998-04-10
Applicant: CANON KK
Inventor： TERAJIMA HISAO , ONO TAKASHI , SHINADA YASUYUKI
Abstract: PROBLEM TO BE SOLVED: To match the resolutions of respective colors and to improve the color reproducibility of black horizontal thin lines and dot originals even in the case of adjusting light source dispersion at the time of moving and reading by turning on/off a light source within one storage period of an image sensor and setting the ratio of the on-time and off-time of the light for the respective colors. SOLUTION: At the time of receiving line synchronizing signals SYNC, a CUP 103 starts interruption processing and writes a value to registers 126 and 128 through a system bus 107 and an internal bus 124 within a interruption routine. That is, light source color designated signals to be applied from the next synchronizing signal SYNC and the duty signals of a PWM 127 are reserved in the respective registers 126 and 128. In such a manner, by changing the light emitting color and on/off duty of a light source in synchronism with the synchronizing signals SYNC, the light source is controlled. That is, one light source is uniformly turned on/off during one line synchronizing period relating to any light source of R, G and B and the ratio of the on-and-off time of the light is made different in the respective colors.
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公开(公告)号：JP2575830B2
公开(公告)日：1997-01-29
申请号：JP18023488
申请日：1988-07-21
Applicant: CANON KK
Inventor： ISOZAKI SHINGO , KUROSAWA JUJI , TERAJIMA HISAO
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公开(公告)号：JPH04306958A
公开(公告)日：1992-10-29
申请号：JP7169291
申请日：1991-04-04
Applicant: CANON KK
Inventor： TERAJIMA HISAO
Abstract: PURPOSE:To prevent invalid recording of an automatic answering telephone set when the automatic answering telephone set is connected to a line N and the line N is switched to a MODEM. CONSTITUTION:When a line N and an automatic answering telephone set 16 are connected and the line N is switched to a MODEM 106, the automatic answering telephone set 16 and a BT generator 117 are connected to send a busy tone to the automatic answering telephone set 16. Then the automatic answering telephone set 16 receives the busy tone and the recording of the automatic answering telephone set 16 is stopped. When the busy tone is recorded and a message is reproduced, it is possible to make clear that the changeover to the facsimile equipment has been carried out.
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公开(公告)号：JPH04252552A
公开(公告)日：1992-09-08
申请号：JP849991
申请日：1991-01-28
Applicant: CANON KK
Inventor： TERAJIMA HISAO
Abstract: PURPOSE:To attain sure remote communication in the communication equipment implementing remote communication according to a remote command from other communication equipment by using one line selectively with other communication equipment (e.g. telephone set). CONSTITUTION:When interruption of a current of a DC loop formed by a telephone set and a line is detected by a current sensor 2, a relay 1 is thrown from the position (a) to (b) and a relay 5 is thrown from a position (d) to (c). When a specific DTMF signal from a telephone set is received via a transformer 8 and a terminal A, the facsimile reception is transferred.
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Patent Agency Ranking
公开(公告)号：JPH04240947A
公开(公告)日：1992-08-28
申请号：JP776691
申请日：1991-01-25
Applicant: CANON KK
Inventor： TERAJIMA HISAO
Abstract: PURPOSE:To prevent deterioration in a light emitting element and to prevent wrong detection by connecting a constant current circuit in series with a light emitting element of a photocoupler. CONSTITUTION:When a telephone set sends a dial pulse while no telephone set is in use and a DC loop is tentatively interrupted, a transistor(TR) Q1 is turned on and a TR Q2 is turned off and no current flows to a LED of a photocoupler PC. Thus, an almost save potential to a Vcc is outputted to a terminal out. When a voltage between terminals A, B is low, the TR Q1 is turned off and the TR Q2 is turned on, a current flows to the LED of the photocoupler PC, which is lighted. In this case, the current flowing to the LED is constant by a constant current circuit independently of the voltage between the terminals A, B. Almost a same potential as GND is outputted to the terminal out. Moreover, a resistance of a resistor R3 is set so that a sufficient current flows to the LED of the photocoupler PC even when a voltage between the terminals A, B is low.
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公开(公告)号：JPH04223652A
公开(公告)日：1992-08-13
申请号：JP40583390
申请日：1990-12-25
Applicant: CANON KK
Inventor： WATANABE TSUNEHIRO , TERAJIMA HISAO , NISHII TERUYUKI
Abstract: PURPOSE:To obtain a data communication device equipped with a communicating function by a telephone set, whose constitution is simple, and by which a data communication can be automatically operated regardless of the state of the telephone set. CONSTITUTION:This device is equipped with a tone decoder 7 which detects signals of 1300Hz and 1100Hz frequencies. Then, the detected frequency of this tone decoder 7 is switched according to the detected output of a hook state detecting part 4. That is, the detected frequency of the second detecting means which detects the signals and frequencies from a line is switched according to the detection of the state of a telephone set 2 by the first detecting means, and the data communication is operated according to the detection of the signal by second detecting means. Therefore, the signals of the different frequencies can be detected according as whether or not the telephone set 2 is used, and the data communication can automatically be operated by the detection of the different signals.
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公开(公告)号：JPH02128878A
公开(公告)日：1990-05-17
申请号：JP28137488
申请日：1988-11-09
Applicant: CANON KK
Inventor： YOSHIDA TAKEHIRO , KOBAYASHI MAKOTO , TERAJIMA HISAO , ONO TAKESHI , WADA SATOSHI , YOKOYAMA MINORU , ASADA AKIHIRO , ISHIDA YASUSHI , AWAI TAKASHI
Abstract: PURPOSE:To easily separate an ink sheet from a recording medium after image recording by a method wherein a recording means is heated again using the same data or the recording means is heated just before a next recording action when a recording action is in a halt for more than a predetermined time after the completion of recording. CONSTITUTION:A thermal head 13 is electrically conducted to be driven dividedly into four blocks. A required time for one-line recording is approximately 2.5ms. After the completion of one-line recording succeeding to the completion of an electric conduction to all the blocks, the predetermined time (20ms) is set to a timer 116, and the timer 116 is made to start counting. When image data for one line to be recorded next is transferred to the thermal head 13, whether the timer 116 has come to a time-out state, i.e. 20ms has elapsed, is judged. If 20ms has not elapsed, a recording processing is executed. However, if 20ms has elapsed, the thermal head 13 is electrically conducted with block unit.
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公开(公告)号：JPH02128856A
公开(公告)日：1990-05-17
申请号：JP28137588
申请日：1988-11-09
Applicant: CANON KK
Inventor： YOSHIDA TAKEHIRO , KOBAYASHI MAKOTO , TERAJIMA HISAO , ONO TAKESHI , WADA SATOSHI , YOKOYAMA MINORU , ASADA AKIHIRO , ISHIDA YASUSHI , AWAI TAKASHI
Abstract: PURPOSE:To improve a recording image quality and to easily separate an ink sheet from a recording medium after image recording by a method wherein the same data is again recorded with the recording medium stopped after the completion of recording, and a recording means is heated before a next recording action when a recording action is in a halt for more than a predetermined time. CONSTITUTION:After the completion of one-line recording succeeding to the completion of an electric conduction to all blocks, a predetermined time is set to a timer 116, and the timer 116 starts counting. If an image recording for one page has not been finished, a data transfer processing for transferring all image data for a next line to a thermal head 13 is executed. Next, if an auxiliary recording is not the second one, the thermal head 13 is electrically conducted again with the same data, and the auxiliary recording is executed by every block of the thermal head 13. Image data for one line to be recorded next is transferred to the thermal head 13. At this time, if a predetermined elapse time has not been counted by the timer 116, the recording data for the next line is latched in a latch circuit 131, and an image recording processing is conducted. If the predetermined time has elapsed, the thermal head 13 is electrically conducted per block to improve a recording quality.
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公开(公告)号：JPH02117868A
公开(公告)日：1990-05-02
申请号：JP27087988
申请日：1988-10-28
Applicant: CANON KK
Inventor： KOBAYASHI MAKOTO , YOSHIDA TAKEHIRO , WADA SATOSHI , TERAJIMA HISAO , ONO TAKESHI , YOKOYAMA MINORU , AWAI TAKASHI , ASADA AKIHIRO , ISHIDA YASUSHI
Abstract: PURPOSE:To allow the remaining amount of ink sheet to be detected by providing a device to detect the remaining amount of ink sheet based on the supplied amount of ink sheet. CONSTITUTION:Ink sheet 14 is supplied from an ink sheet supply roll 17, and wound around a winding roll 18. The winding roll 18 is driven with a motor for ink sheet transport 25. The supply roll 17 and an encoding plate 61 rotate in an arrow direction due to the rotary drive of the winding roll 18 in an arrow direction. The motor for ink sheet transport 25 is driven by rotation by a specified number of steps because the motor for ink sheet drive 25 supports and drives the winding roll 18. However, if this rotary drive takes place, the rotary angle of the ink sheet supply roll 17 changes in response to the change in the dimeters of the ink sheet supply roll 17 and the winding roll 18. Consequently, the remaining amount of the ink sheet 14 can be obtained by detecting this change with the aid of a photointerrupter 62.
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