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1. 发明专利

JPS5527208A HEAT SENSITIVE RECORDING APPARATUS 失效
公开(公告)号：JPS5527208A
公开(公告)日：1980-02-27
申请号：JP9913178
申请日：1978-08-16
申请人： OKI ELECTRIC IND CO LTD
发明人： KIMURA HARUFUSA , IZUMI GOROU
IPC分类号： B41J2/355 , B41J2/365 , H04N1/032
摘要： PURPOSE:To provide a heat sensitive recording apparatus which permits the thermal head free from heating injury for a constant thickness printing by checking the heating element for its temperature while the printing movement is in pause and controlling the heating current accordingly. CONSTITUTION:The thermal head 3 receives electric power from power supply circuit 6 accordingly to printing signals for heating printing. Timing signals alternately determine the printing period and sampling period for voltage drop (a period in printing signals to pause a printing movement for checking the voltage drop of heating element due to constant current.). Data on the thermal head temperature is constantly put into the temperature checking circuit 7. Signals from checked temperature are compared with pre-determined temperature values and power supply from power supply circuit 6 to the thermal head 3 is controlled to permit a heating printing at pre-determined temperature.

2. 发明专利

JPS5380909A MANUSCRIPT DETECTION CONTROL SYSTEM 失效
公开(公告)号：JPS5380909A
公开(公告)日：1978-07-17
申请号：JP15627676
申请日：1976-12-27
申请人： OKI ELECTRIC IND CO LTD
发明人： KIMURA HARUFUSA
IPC分类号： H04N1/00 , H04N1/04
摘要： PURPOSE:To eliminate the irregular pattern by setting the manuscript detection position more forward than the manuscript reading position and replacing a fixed section of the manuscript tip compulsively with the white information. As a result, it is not required that the manuscript detection distance is extremely reduced or that the position adjustment is given strictly.

3. 发明专利

JPS53123824A CONTROL OF PULSE MOTOR 失效
公开(公告)号：JPS53123824A
公开(公告)日：1978-10-28
申请号：JP3805577
申请日：1977-04-05
申请人： OKI ELECTRIC IND CO LTD
发明人： KIMURA HARUFUSA
IPC分类号： H02P8/12 , H02P8/00
摘要： PURPOSE:To curtail the consumption of electric power by reducing the excitation current of pulse motor during the period of holding by providing a means of changing the reference voltage by drive timing and a means of comparing the excitation current therewith.

4. 发明专利

JPS5672580A READ SIGNAL PROCESSOR 失效
公开(公告)号：JPS5672580A
公开(公告)日：1981-06-16
申请号：JP14931379
申请日：1979-11-17
申请人： OKI ELECTRIC IND CO LTD
发明人： KIMURA HARUFUSA
IPC分类号： H04N1/028 , H04N1/401 , H04N1/409
摘要： PURPOSE:To prevent deviation due to leakage among photodetectors in a photodetector array, by assigning the address of ROM according to the digital value of a picture element to be corrected and those of picture elements before and behind the picture element to be corrected. CONSTITUTION:Reflected light from original surface 1 is converted photoelectrically by photodetector array 4, whose output is inputted to amplifier 5, level adjusting circuit 8 and A/D converter 9. Then, ROM11 outputs the contents of the address assigned by the current picture element signal inputted from converter 9 and the last picture element signal inputted from latch circuit 10, i.e. the signal having the leakage of the current picture element signal corrected to quantizing circuit 12, which outputs a binary-coded signal.

5. 发明专利

JPS56147562A TONE READ-IN CIRCUIT IN TONE FACSIMILE 失效
公开(公告)号：JPS56147562A
公开(公告)日：1981-11-16
申请号：JP5026580
申请日：1980-04-18
申请人： OKI ELECTRIC IND CO LTD
发明人： NAKAGATA NORIO , KIMURA HARUFUSA
IPC分类号： H04N1/40
摘要： PURPOSE:To obtain a tone suitable for read-in of the character information, by using the peak hold circuit and bottom hold circuit, and combining the outputs so that they are applied to the converter as the upper and lower reference voltage determining the range of conversion of the converter. CONSTITUTION:The original to be electrically transmitted is read in at the photoelectric conversion circuit SNS. The output voltage from the circuit SNS is applied to the resistor R1 of the peak voltage hold circuit PH and the resistor R2 of the bottom voltage hold circuit BH. The terminal voltage of the capacitor C1 holds the peak value of the output of the circuit SNS and the terminal voltage of the capacitor C1 holds the bottom value. The hold voltage is received at the DC amplifiers AMP1, AMP2 and applied to the reference voltage terminals VR(+)IN, VR(-)IN up and down the converter A/D. The converter A/D converts the digital signal in 4-bit. The converted digital signal is output to the output terminals OUT0-OUT3 and transmitted to the transmission line.

6. 发明专利

JPS56116366A SHADING CORRECTION SYSTEM 失效
公开(公告)号：JPS56116366A
公开(公告)日：1981-09-12
申请号：JP1925080
申请日：1980-02-20
申请人： OKI ELECTRIC IND CO LTD
发明人： KIMURA HARUFUSA
IPC分类号： H04N1/028 , H04N1/401 , H04N1/407
摘要： PURPOSE:To correct shading of a fascimile, by using the combination of an optical and an electric methods, effectively using the dynamic range of an image sensor and making unnecessary mechanical high precision. CONSTITUTION:In reading in the original 1 having many kinds of read-in widths with one image sensor 7 through the selection of lenses for B4 size 5 and A3 size 6 or movement toward light axis, one B4 side shading correction plate 3 is used and the same incident light amount is given to all the bits of the sensor 7. An image sensor drive circuit 8 which adjusts the cancellation of clock noise and required level for output is connected to this sensor 7, and the circuit 8 is controlled with the output of a peak hold circuit 9 constituting the automatic slice circuit. Further, in case of read-in of B4 size or less, the plate 3 only is used, and at the read-in of A3 size, through the combination of electric correction stroed in ROM13, the shading is corrected without sacrificing the dynamic range of the sensor 7.

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