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31. 发明专利

JPH03265305A DUAL TUNING ANTENNA AND SIGNAL GENERATOR HAVING THE ANTENNA 失效
公开(公告)号：JPH03265305A
公开(公告)日：1991-11-26
申请号：JP6265690
申请日：1990-03-15
申请人： FUJI ELECTRIC CO LTD
发明人： KONDO SHIRO
IPC分类号： H01Q7/00
摘要： PURPOSE:To widen the band without deteriorating the antenna efficiency by providing a resonance type loop antenna comprising a loop coil connecting to a capacitor in parallel therewith and a coil of an LC resonance circuit coupled electrically or magnetically with the loop antenna. CONSTITUTION:A loop coil 1 having a self-inductance L1 connects in parallel with a capacitor 3 whose capacitance is C1 to form an LC resonance loop antenna. Similarly, a loop coil 2 having a self-inductance L2 connects in parallel with a capacitor 4 whose capacitance is C2 to form another LC resonance loop antenna. The coupling state of the two LC resonators is easily changed by varying the degree of overlap l and (d) of the loop coils 1, 2 in the antenna as above and the dual tuning loop antenna having a desired characteristic is realized. Thus, the band is widened without deteriorating the antenna efficiency.

32. 发明专利

JPH03104325A INDIVIDUAL IDENTIFICATION DEVICE 失效
公开(公告)号：JPH03104325A
公开(公告)日：1991-05-01
申请号：JP24053589
申请日：1989-09-19
申请人： FUJI ELECTRIC CO LTD
发明人： KONDO SHIRO
IPC分类号： H04B5/00
摘要： PURPOSE:To ensure the communication distance of several tens of centimeters and to increase the memory capacity by providing a means selecting a built-in battery or a rectifier power supply rectifying the energy of an induced magnetic field from a master station on an individual identification device reading the memory content of an individual relating to a slave station contactless by a master station. CONSTITUTION:In the case of data write, all device components are connected to a power line A. This is accomplished by a control circuit 16 to control a power changeover switch SW17 through the use of a switching SW control line 18 to connect the power line A21 to an EEPROM 19. In the case of data readout, in this case, the control circuit 16 connects the power supply of the EEPROM 19 to a power line B22 with the changeover switch SW17. In this case since the power changed by the induced magnetic field energy from a master station is circuit components except the EEPROM 19, it is possible to extend the communication distance between the master station and a slave station up to several tens of centimeters.

33. 发明专利

JPS6482194A NON-CONTACT COMMUNICATION DEVICE FOR CONTACT IDENTIFICATION CARD 失效
公开(公告)号：JPS6482194A
公开(公告)日：1989-03-28
申请号：JP23918687
申请日：1987-09-24
申请人： FUJI ELECTRIC CO LTD
发明人： KONDO SHIRO
IPC分类号： H04L29/02 , G06K17/00 , H04L13/00 , H04L13/08
摘要： PURPOSE:To be used in bad circumstances and to attain both the communica tions of non-contact and contact with one card by using a radio communication means in a device having in an identification card able to give and receive storage information through a contact and giving and receiving the information to and from the outside. CONSTITUTION:This device is a device having a contact identification card in a main body 9 and has radio data transmitting means (an interface 11, a CPU 12, a modulating circuit 13, a transmitting circuit 14, a transmitting antenna 8S, etc.) to transmit the information read out of a card 1 through a contact means 6 to the outside of the device by radio and radio data receiving means (a receiving antenna 8R, a receiving circuit 17, a demodulating circuit 16, the CPU 12, the interface 11, etc.) to write the information received from the outside of the device by the radio into the card 1 through the contact means 6. Since the non-contact communication device for a non-contact identification card having a closed structure like this has the contact identification card 1 in, in the bad circumstances, the non-contact communication can be executed and all services can be executed with one card.

34. 发明专利

JPS6331320A COMMUNICATION EQUIPMENT WITH MOBILE BODY 失效
公开(公告)号：JPS6331320A
公开(公告)日：1988-02-10
申请号：JP17506386
申请日：1986-07-25
申请人： FUJI ELECTRIC CO LTD
发明人： SANO TOMOMI , KONDO SHIRO , UEDA KEIICHIRO
IPC分类号： H04B7/26 , H04L27/00
摘要： PURPOSE: To receive the ID code of a mobile body traveling at high speed by means of an inexpensive method, by arranging a transmission antenna to communicate with the mobile body, and plural reception antennas, in the moving direction of the mobile body. CONSTITUTION:An 10 request output circuit 7 outputs an ID transmission request signal ID periodically from the transmission antenna 2, and the mobile body 1 receiving the signal transmits its own ID code. Antenna reception signals 11-14 corresponding to repective part of the same ID code received from the reception antennas 31-34, after being amplified and waveform-arranged by amplification and arrangement circuits 41-44 respectively, are superposed by logical OR, and a logical OR reception signal 15 can be obtained. By checking the format and the error of the logical OR reception signal 15 through a checking circuit 6, it is possible to obtain a correct reception data, and to recognize the ID code of the mobile body.

35. 发明专利

JPH09198539A QUICKEST BUTTON PUSH DETECTION SYSTEM BY RADIO 失效
公开(公告)号：JPH09198539A
公开(公告)日：1997-07-31
申请号：JP626596
申请日：1996-01-18
申请人： FUJI ELECTRIC CO LTD
发明人： NAKATO YOSHIJI , KONDO SHIRO , MARUKO TAKESHI
IPC分类号： G04F10/00 , G07C11/00 , H04B7/24 , H04W4/06 , H04W74/06 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To provide a convenient system at a low cost for juging the successful bidder of an auction. SOLUTION: A master station 20 and a host computer 10 are provided in a market, a display device 40 connected to the host 10 displays an auction number 41, an auction value 42 and an auction result 43, etc., and auction participants hold slave stations 30 (30-1 to 30-N) for performing radio communication with the master station 20. The participants are registered in the host 10 beforehand by their own respective ID numbers and the auction number 41 is displayed at the display device 40 beforehand. As soon as the auction is started, the auction value 42 is displayed at the display device 40, the master station 20 transmits a timer reset command and the timers of the respective slave stations are started after reset. When the participant to make a successful bid presses a prescribed push button on the slave station, the timer is stopped and measurement time is determined. The master station 20 polls the respective slave stations 30, gathers the auction number, the ID number and the measurement time and delivers them to the host 10. The host searches the minimum measurement time, judges the successful bidder from the ID number and displays it as the auction result 43.

36. 发明专利

JPH07202758A MULTICARRIER SPECTRUM SPREADED SIGNAL MODULATION / DEMODULATION METHOD AND SYSTEM 失效
公开(公告)号：JPH07202758A
公开(公告)日：1995-08-04
申请号：JP24167794
申请日：1994-10-05
申请人： FUJI ELECTRIC CO LTD , INTERDIGITAL TECH CORP
发明人： KONDO SHIRO , ROORENSU BII MIRUSUTAIN
IPC分类号： H04B7/26 , H04L5/02 , H04L27/26 , H04B1/707
摘要： PURPOSE: To provide robustness against mutlipath phading and narrow band interference suppression in a spread spectrum communication system/method. CONSTITUTION: A maximum ratio synthesizer 51 is included in a receiver 12 to maximize the SN ratio of the receiver 12. A data signal is modulated by plural carriers to generate a multicarrier spectral signal. The multicarrier system is suitable for a code division multiple access system.

37. 发明专利

JPH05102893A TRANSMITTER/RECEIVER BY ELECTROMAGNETIC COUPLING SYSTEM 失效
公开(公告)号：JPH05102893A
公开(公告)日：1993-04-23
申请号：JP26194391
申请日：1991-10-09
申请人： FUJI ELECTRIC CO LTD
发明人： KONDO SHIRO , NAKATO YOSHIJI
IPC分类号： H04B5/00
摘要： PURPOSE:To drive a diode for transmission by a single power source without degrading the signal intensity of transmission by connecting one terminal of a loop antenna to a common potential, connecting the other terminal to a diode for detection and executing detection at a half wave rectifier circuit. CONSTITUTION:Since the half wave rectifier circuit executes the detection while grounding one terminal of a loop antenna 31 to a common potential GND and connecting the other terminal to a diode 33 for detection, transmission is enabled only by using one transistor 41 for positive single polarity transmission. On the other hand, since the size of a current to flow through a protecting diode 39 is limited by a resistor 37 at a moment when the transistor 41 for transmission is changed from ON to OFF in the case of transmission, the rise/fall of a signal transmitted to a loop antenna 26 is improved.

38. 发明专利

JPH03102924A COMMUNICATION METHOD BETWEEN MASTER STATION AND PLURAL SLAVE STATIONS 失效
公开(公告)号：JPH03102924A
公开(公告)日：1991-04-30
申请号：JP24118689
申请日：1989-09-18
申请人： FUJI ELECTRIC CO LTD
发明人： KONDO SHIRO
IPC分类号： H04B7/24 , H04B7/26
摘要： PURPOSE:To recognize an ID code of a slave station whose master station is resident within a communication area by allowing the master station to detect crosstalk and allowing a slave station to revise a time up to reply according to a content of part of the ID code. CONSTITUTION:In oder to allow a master station to recognize IDs of plural slave stations in existence in its own communication area efficiently, different ID codes are given to the slave stations and when crosstalk takes place, the crosstalk is to be detected. Moreover, a slave station replies with the master station while varying a time from the reception of a transmission invitation from the master station to its reply according to the content of the part of the ID code via a memory 6 according to a program of a CPU 5. Then the master station gives a time difference to part (e.g. lower 1st digit) of the ID code to receive the reply of the ID code and when crosstalk takes place, a time difference is given to the other part of the ID code (e.g. lower 2nd digit) for the reply and repetitive communication is implemented in order. Thus, the master station can recognize efficiently the ID codes of the slave stations in its own communication area.

39. 发明专利

JPH02100526A INDIVIDUAL IDENTIFICATION METHOD 失效
公开(公告)号：JPH02100526A
公开(公告)日：1990-04-12
申请号：JP25204888
申请日：1988-10-07
申请人： FUJI ELECTRIC CO LTD
发明人： KONDO SHIRO
IPC分类号： G01S13/78 , H04B7/26
摘要： PURPOSE:To unequivocally set the content of a memory even if the content of the memory is indefinite due to the raise time of power by giving a function setting a check code in an accurate code when there is the check code for detecting the abnormality of internal data in a slave station. CONSTITUTION:When the slave station 1 receives data to be written from a master station 1, it checks whether there is a communication error. When it is normal, data is written in a memory 1 (12A), a memory 2 (12B) and a memory 3 (12C) in triple. When the slave station receives command transmission from the master station, it majority-decides the memories 1, 2 and 3. When the content of the memory is indefinite due to the raise time of power, there is hardly any probability that the contents of the memory 1 (12A), the memory 2 (12B) and the memory 3 (12C) coincide. Here, initial reset is performed and it is attained by using a full memory clear command.

40. 发明专利

JPH0235390A DISCRIMINATING METHOD OF INDIVIDUAL BODY 失效
公开(公告)号：JPH0235390A
公开(公告)日：1990-02-05
申请号：JP18354688
申请日：1988-07-25
申请人： FUJI ELECTRIC CO LTD
发明人： KONDO SHIRO
IPC分类号： G01S13/74 , G01S13/78
摘要： PURPOSE:To reduce a burden on the master station side and to improve reliability by detecting abnormality in data at a subordinate station and by executing the restoration of the data when the abnormality is detected. CONSTITUTION:Data such as a discrimination code are written by a master station 1 at a point P1 in a subordinate station 2 mounted on a moving body 3. On the occasion, the data received by a non-contact communication device 10 are tripled and written in memories 12A to 12C. When the moving body 3 moves to the position of a point P2 and receives a transmission command from a master station 1A, CPU 11 of the subordinate station 2 reads the data of the memories 12A to 12C and executes determination on a decision-by- majority basis. When three data coincide with one another, these data are transmitted, and when they are different from one another, the master station is informed that there is abnormality in the data. When two out of the three data coincide with each other, the data coincident with each other are transmitted, while the data not being coincident with others are modified by the transmitted data to be restored.

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