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1. 发明专利

JPH05107107A INSPECTING DEVICE OF LIGHT-EMITTING ELEMENT 失效
公开(公告)号：JPH05107107A
公开(公告)日：1993-04-27
申请号：JP29823691
申请日：1991-10-16
申请人： OMRON TATEISI ELECTRONICS CO
发明人： SHIBATA KUNIHARU
IPC分类号： G01J1/00 , G01M11/00
摘要： PURPOSE:To make it possible to inspect simply the degree of condensation of light of a light-emitting element without being affected by the amplitude of an emission output. CONSTITUTION:An emission light alpha emitted from a light-emitting element 2 being an object of inspection is reflected on a reflecting body 3 and a scattered light beta reflected on the reflecting body is imaged on a position detecting element 5 by a condenser lens 4. Since this imaging position (centroidal position (g)) changes in accordance with the degree of condensation of light of the light- emitting element 2, the defree of condensation of light can be inspected on the basis of the imaging position. In addition, this imaging position is not affected by an emission output of the light-emitting element 2.

2. 发明专利

JPH04322510A OSCILLATION CIRCUIT 失效
公开(公告)号：JPH04322510A
公开(公告)日：1992-11-12
申请号：JP11800491
申请日：1991-04-22
申请人： OMRON TATEISI ELECTRONICS CO
发明人： FUJIMOTO KIMITADA , SHIBATA KUNIHARU
IPC分类号： H03K3/0231 , H03K3/023 , H03K3/282
摘要： PURPOSE:To realize the oscillation circuit suitable for circuit integration without need for the provision of a terminal for an externally mounted capacitor. CONSTITUTION:The oscillation circuit is provided with a transistor(TR) Q1 whose state changes to ON or OFF in response to a current fed to its base, and a feedback loop including TRs Q2-Q5 or the like feeding back an output in response to the ON or OFF state of the TR Q1 to the said base. The inside of the feedback loop is arranged with a time constant circuit comprising a parasitic capacitance C of at least the TR Q3 and a resistor R4 and the oscillating frequency characteristic of the circuit is controlled by the time constant circuit.

3. 发明专利

JPH10117202A CONTROL COMMUNICATION SYSTEM 失效
公开(公告)号：JPH10117202A
公开(公告)日：1998-05-06
申请号：JP26972696
申请日：1996-10-11
申请人： OMRON TATEISI ELECTRONICS CO
发明人： SHIBATA KUNIHARU , YAMAMOTO SHINICHI , SEKII HIROSHI
IPC分类号： H04B3/00 , H04L12/28 , H04L12/40
摘要： PROBLEM TO BE SOLVED: To eliminate the need for inconvenient works such as setting of an address to each slave station, to simplify transmission control and to quickly detect a transmission error due to noise or the like in the control communication system, provided with a master station and a plurality of slave stations while saving transmission wires. SOLUTION: Each of slave stations 31 -33 receive a 1-bit data denoting on/off state from input devices 41 -43 such as a sensor and sends the received data to the master station 2, while transferring the data sequentially via the stations of an upperstream toward the master station 2 based on a shift clock from the master station 2, and an end station at the lowermost downstream sends data of '0'/'1' alternately to the master station 2 for each cycle.

4. 发明专利

JPH06120797A TWO-WIRE PHOTOELECTRIC SWITCH 失效
公开(公告)号：JPH06120797A
公开(公告)日：1994-04-28
申请号：JP29215692
申请日：1992-10-05
申请人： OMRON TATEISI ELECTRONICS CO
发明人： ISHIBASHI KEISUKE , SHIBATA KUNIHARU , OKUDA HIROTAKA
IPC分类号： H03K17/78
摘要： PURPOSE:To stabilize the switch operation by reducing the leak current at the time turning off the output of a two-wire photoelectric switch being turned off. CONSTITUTION:A light projecting element 8 is periodically driven by a light projecting pulse generating circuit 6. The light reception signal is discriminated through a photodetector 9 by a discriminating circuit 11. If an object is not detected, the light projecting peak current of the light projecting element 8 is lowered; and when the object is detected, the peak current is raised. Thus, the leak current at the time of the output being turned off is smaller, and the operation is stabilized by optical hysteresis.

5. 发明专利

JPH04318415A POSITION DETECTING APPARATUS 失效
公开(公告)号：JPH04318415A
公开(公告)日：1992-11-10
申请号：JP11263991
申请日：1991-04-17
申请人： OMRON TATEISI ELECTRONICS CO
发明人： SHIBATA KUNIHARU , FUJIMOTO KIMITADA
IPC分类号： G01B11/00 , G01C3/06 , H01L21/66
摘要： PURPOSE:To miniaturize a photodetector having a position detecting function and a peripheral circuit for electrically processing outputs of the photodetector in a position detecting apparatus which measures the distance to an object. CONSTITUTION:A PSD 12 as a position detecting apparatus, a PNP transistor 13, an NPN transistor 14, and a resistance 15 which constitute a peripheral circuit of the apparatus are positioned on the same chip thereby to form an integrated circuit. A light shielding aluminum plate 6 is formed on the surface of the integrated circuit except for a photodetecting surface 5 of the PSD 12, thereby to prevent the erroneous operation of the peripheral circuit.

6. 发明专利

JPH02287778A MEMBERSHIP FUNCTION CIRCUIT 失效
公开(公告)号：JPH02287778A
公开(公告)日：1990-11-27
申请号：JP10750989
申请日：1989-04-28
申请人： OMRON TATEISI ELECTRONICS CO
发明人： SHIBATA KUNIHARU , MATSUMOTO HIDETOSHI
IPC分类号： G06G7/25 , G05B13/02 , G06F9/44 , G06N7/02
摘要： PURPOSE:To improve the temperature characteristic, the variance, and the setting operability of inclination by integrating resistances which determine the inclination of a membership function and varying their resistance values by a binary signal given from the external. CONSTITUTION:In a membership function circuit provided with two differential circuits 11 and 12 including transistors TRs Q11, Q12, Q21, and Q22 and resistance circuits Ra and Rb connected between them and circuits Q13 and Q23 for MIN operation, resistance circuits Ra and Rb consist of plural resistances Ra1 to Ram and Rb1 to Rbn and analog switches SWa1 to SWam and SWb1 to SWbn which selectively connect one or several resistances of these resistances, and these circuits are integrated. Turning-on/off of analog switches SWa1 to SWam and SWb1 to SWbn is controlled by the external signal to select resistances Ra1 to Ram and Rb1 to Rbn constituting resistance circuits and resistance values of resistance circuits are changed, and therefore, the inclination of the set LAMBDAtype or pi type membership function is changed.

7. 发明专利

JPS6398217A PHOTODETECTOR 失效
公开(公告)号：JPS6398217A
公开(公告)日：1988-04-28
申请号：JP24313386
申请日：1986-10-15
申请人： OMRON TATEISI ELECTRONICS CO
发明人： SHIBATA KUNIHARU , TANIGUCHI MASAYOSHI , NAKAJIMA KIMIO
IPC分类号： H03K17/78
摘要： PURPOSE:To prevent power from being consumed wastefully in a light emitting part, by comparing the output signal of a photodetecting circuit with a reference signal set in advance, outputting a control signal corresponding to deviation between them, and controlling the emitted light quantity of a light emitting element. CONSTITUTION:A current flowing on a light receiving element 1 is converted to a voltage VIN by a current/voltage conversion circuit 3, and is inputted to the comparator 7 of a sensitivity adjusting circuit, and a signal processing circuit 4, respectively. At the comparator 7, a reference voltage Vref is compared with the input voltage VIN from the current/voltage conversion circuit 3, and the output is sent to a latch circuit 6. The latch circuit 8 outputs the control signal VUD of an up/down counter 9. The counted output of the up/down counter is converted to an analog signal VLO at a digital/analog converter 10. The voltage output VLO is converted to the current at a voltage/current conversion circuit 6, thereby, the light emitting element 2 is current-driven.

8. 发明专利

JPH11160015A REFLECTION TYPE PHOTOELECTRIC SENSOR AND DETECTION METHOD OF BOUNDARY LINE 失效
公开(公告)号：JPH11160015A
公开(公告)日：1999-06-18
申请号：JP32596697
申请日：1997-11-27
申请人： OMRON TATEISI ELECTRONICS CO
发明人： SEKII HIROSHI , MATSUYAMA AKIHISA , SHIBATA KUNIHARU
IPC分类号： G01B11/00 , G01B11/06 , H01L31/12
摘要： PROBLEM TO BE SOLVED: To accurately detect the boundary line without producing an indefinite output even if a photo-receiving signal is zero. SOLUTION: An object 3 with a boundary line is irradiated with an LED 2, and reflected light from the object 3 is received by a bipartite photodiode PD5. One of the received currents, I1 , is converted to a voltage by a current/ voltage converter 11a and is input to a division part 14 through an amplifier 12a and a capacitor 13a. The division part 14 receives a voltage V1 +α by adding an offset component α provided by a constant-current power supply 15. On the other hand, the other received current I2 is also input to the division part 14 as a voltage V2 through a current/voltage converter 11b, an amplifier 12b and a capacitor 13b. The dividing V2 /(V1 +V2 +α) is calculated in the division part 14. Even if V1 =V2 =0, an output is not indefinite since the output is zero (0/α=0).

9. 发明专利

JPH07270155A DISTANCE SENSOR 失效
公开(公告)号：JPH07270155A
公开(公告)日：1995-10-20
申请号：JP10300095
申请日：1995-04-03
申请人： OMRON TATEISI ELECTRONICS CO
发明人： NAKANISHI HIROAKI , FUKUMOTO HIDEHIRO , SHIBATA KUNIHARU , MATSUMOTO HIDETOSHI
IPC分类号： G01C3/06
摘要： PURPOSE:To enable the detecting of condition in which an output exists in an unstable area near a set distance with a distance sensor. CONSTITUTION:An object 4 is irradiated with a parallel light beam 3 through a convergent lens 2 from a projector 1. The reflected light to the object is received with a position detector 6 and the ratio thereof is calculated with a division circuit 10. A comparator 11 compares the ratio with a first threshold Vref1 and judges a far or close position to a set distance to output the results. Second and third thresholds Vref2 and Vref3 are set above and below the first threshold respectively and the first threshold is compared therewith by means of comparators 12 and 13. When the former threshold is within the range of the latter threshold, an unstable area is determined and when it is outside the range, a stable area is determined. Thus, the results are judged to produce an output.

10. 发明专利

JPH06132801A PHOTOELECTRIC SWITCH 失效
公开(公告)号：JPH06132801A
公开(公告)日：1994-05-13
申请号：JP30461292
申请日：1992-10-15
申请人： OMRON TATEISI ELECTRONICS CO
发明人： KAI TEI , SHIBATA KUNIHARU , ISHIBASHI KEISUKE
IPC分类号： H03K17/78
摘要： PURPOSE:To reduce an output voltage at the time of turning on a photoelectric switch and to add hysteresis to switching characteristics when a light beam is cut off or made incident. CONSTITUTION:A light emitting diode 5, output transistor Q1 and the parallel circuit of a resistor R1 are connected between terminals 1 and 2. A light receiving circuit 6 receives the light of the light emitting diode 5 and when any object is detected, a signal processing circuit 7 outputs a signal at an H level. At such a time, the transistor Q1 for switching is conducted, and a driving current flows to a load 3 connected to a DC power source 4. In this case, the current of the light emitting diode 5 is increased, and the quantity of lights is increased. At the same time, the driving currents of the light receiving circuit 6 and signal processing circuit 7 are increased as well. Therefore, the switching characteristics at the time of ON are stablized, and the adverse influence of noise from the load or power source is reduced.

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