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1. 发明专利

JPS6318363B2 失效
公开(公告)号：JPS6318363B2
公开(公告)日：1988-04-18
申请号：JP51380
申请日：1980-01-09
申请人： SONY TEKTRONIX CORP
发明人： ISHIJIMA YASUMORI , MUROOKA RIKICHI
IPC分类号： H03G11/00 , H03G11/02

2. 发明专利

JPH08201703A EQUATORIAL TELESCOPE TYPE FRAME 失效
公开(公告)号：JPH08201703A
公开(公告)日：1996-08-09
申请号：JP3296295
申请日：1995-01-30
申请人： SONY TEKTRONIX CORP
发明人： ISHIJIMA YASUMORI , YANAGIBASHI SHUNJI
IPC分类号： G02B23/16
摘要： PURPOSE: To more easily introduce a desired celestial body into the visual field of an astronomical telescope. CONSTITUTION: A 1st motor rotates the astronomical telescope 20 around a polar axis 12. A 2nd motor rotates the telescope 20 around a declination axis 14. A motor controller 26 is provided with a GPS circuit and a control circuit, and controls the 1st and the 2nd motors by receiving a longitude data signal and a time data signal from the GPS circuit in the case of designating the desired celestial body, so that the desired celestial body is automatically introduced into the visual field of the telescope 20. It is conceivable to provide an encoder instead of the 1st and the 2nd motors, display the difference of an angle by which the telescope 20 should be rotated, and manually adjust the polar axis and the declination axis so that the difference of the angle may be zero.

3. 发明专利

JPS5698012A AMPLITUDE LIMITING CIRCUIT 失效
公开(公告)号：JPS5698012A
公开(公告)日：1981-08-07
申请号：JP51380
申请日：1980-01-09
申请人： SONY TEKTRONIX CORP
发明人： ISHIJIMA YASUMORI , MUROOKA RIKICHI
IPC分类号： H03G11/00 , H03G11/02
摘要： PURPOSE:To eliminate an evil effect to be given to the signal source, by cutting off the output terminal from the input terminal in the mode of amplitude limitation. CONSTITUTION:The outputs of both the comparators 26 and 28 are 0 when the input signal voltage Vi has a relation of -V2

4. 发明专利

JPS5677766A MEASURING DEVICE OF WORKING PROPERTIES 失效
公开(公告)号：JPS5677766A
公开(公告)日：1981-06-26
申请号：JP15783080
申请日：1980-11-10
申请人： SONY TEKTRONIX CORP
发明人： ISHIJIMA YASUMORI , MUROOKA RIKICHI
IPC分类号： G01R13/22 , G01R31/00
摘要： PURPOSE:To upgrade a measurement precision by making the working property of the device to be measured measurable by giving a comparison between the two waveforms displayed when the device to be measured is inserted and when a direct observation is given to the input signal to be supplied to the terminal each. CONSTITUTION:A comparison is given to the reference voltage between the device 13 to be measured to which the periodical input signal is applied and the D/A converter 14 which responds to the number of the outputs of the device 13 and a series of the inclination signals. Then the working properties of the device 13 are displayed. With variation of the reference voltage of the converter 14 in a range of V1-V3, the inverting time points of the output of the comparator 12 vary as t1- t3 each. For instance, if the converter 14 of 10 bits is used, the reference voltage having a high resolution of 1024 steps can be obtained. The display on the CRT18 at that moment shows the waveform of the working properties of the device 13. The time axis of the waveform is decided by the slope of the high-speed inclination signal. In such constitution, the accuracy of measurement can be increased greatly like an ordinary sampling oscilloscope.

5. 发明专利

JPS5417070A WAVEFORM MONITOR 失效
公开(公告)号：JPS5417070A
公开(公告)日：1979-02-08
申请号：JP8135277
申请日：1977-07-07
申请人： SONY TEKTRONIX CORP
发明人： ISHIJIMA YASUMORI , MUROOKA RIKICHI
IPC分类号： G01R13/22 , G01R13/34
摘要： A waveform observing method and apparatus incorporating signal sampling and digital technologies is disclosed. An input signal to be observed is compared with the output from a digital-to-analog converter and the comparison output is used for controlling display means such as a cathode-ray tube. A wideband input signal can be measured with much higher accuracy than the conventional apparatus.

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