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    MAGNETISCHER INFORMATIONSSPEICHER UND/ODER LESEKOPF MIT ERHÖHTEN VERSCHLEISSWIDRIGEN EIGENSCHAFTEN UND DESSEN HERSTELLUNG
    2.
    发明公开
    MAGNETISCHER INFORMATIONSSPEICHER UND/ODER LESEKOPF MIT ERHÖHTEN VERSCHLEISSWIDRIGEN EIGENSCHAFTEN UND DESSEN HERSTELLUNG 失效
    磁信息存储和/或读取头具有增加VERSCHLEISSWIDRIGEN性质及其生产。

    公开(公告)号：EP0162882A1

    公开(公告)日：1985-12-04

    申请号：EP84904158.0

    申请日：1984-11-09

    申请人： BUDAPESTI RADIOTECHNIKAI GYAR

    发明人： GRIMM, István ,  STENCZINGER, Sándor ,  BOLLA, István ,  CSANYI, István

    IPC分类号： G11B5

    CPC分类号： G11B5/255 ,  Y10T29/49055

    摘要： Tête magnétique pour la lecture et/ou l'enregistrement d'informations comportant une paire de demi-pôles (10, 11) formés chacun d'une pluralité de feuilles de fer doux (12) de profils prédéterminés. Les demi-pôles sont fixés entre eux pour déterminer un entrefer (13) devant un porteur magnétique (16). Une bobine (15) est disposée sur le noyau. De minces revêtements durs (18) sont disposés sur les surfaces des feuilles (12) au moins dans la région de l'entrefer et la zone frontale de contact (17) avec le porteur permettant ainsi d'obtenir une structure en sandwich laminée dont la dureté se modifie périodiquement sur la largeur du porteur. En raison de la rigidité du porteur, les revêtements durs résistent à l'usure provoquée par le mouvement de coulissement du porteur. La présence des revêtements minces ne diminue pas la perméabilité résultante du noyau. Le revêtement est déposé selon une technique de pulvérisation cathodique réactive à rendement élevé, permettant une dureté et une cohésion au substrat de fer optimale. Le nitrure de titane est un matériau préférentiel de revêtement.

    Antenna arrangement for personal radio transceivers
    4.
    发明公开
    Antenna arrangement for personal radio transceivers 失效
    天线无线电收发器的天线布置

    公开(公告)号：EP0070150A3

    公开(公告)日：1983-10-05

    申请号：EP82303577

    申请日：1982-07-08

    申请人： BUDAPESTI RADIOTECHNIKAI GYAR

    发明人： Nemet, Mihaly

    IPC分类号： H01Q01/27

    CPC分类号： H01Q1/273

    摘要： An antenna arrangement is disclosed for personal radio transceivers in which a main antenna (1) extends out from the housing (3) of the transceiver excited by the high frequency connector thereof and an auxiliary antenna (4) is coupled to the cold terminal of the connector to form a counterweight to the main antenna (1). Both the main and auxiliary antennas (1, 4) are resonant and shorter than the quarterwave-length, whereby the housing (3) gets to a potential minimum and the effects of the close presence of the human body on the radiational properties will be reduced.

    Ground-plane antenna
    5.
    发明公开
    Ground-plane antenna 失效
    Antenne mit Gegengewicht。

    公开(公告)号：EP0075374A1

    公开(公告)日：1983-03-30

    申请号：EP82201173.0

    申请日：1982-09-22

    申请人： BUDAPESTI RADIOTECHNIKAI GYAR

    发明人： Nemet, Mihaly

    IPC分类号： H01Q9/38

    CPC分类号： H01Q9/38 ,  H01Q9/40

    摘要： A ground-plane antenna comprises a quaterwave resonant radiating rod (1) made of a hollow tube in which a central earthing rod (7) is arranged to form with the internal cylindrical wall of the radiating rod a line section short-circuited at the upper end. A further line section (16) open at the lower end is arranged in the extension of the short-circuited line section to form a combined tapped line section therewith having an electrical length substantially equal to the quarterwavelength, in which the combined line section is coupled with its tapping points in parallel to the input terminals (4, 5) of the antenna, whereby the susceptance represented by the combined line section is capable of compensating the changes of the antenna reactance within a fairly wide band.

    摘要翻译： 接地平面天线包括由中空管制成的四通道谐振辐射棒（1），其中中心接地杆（7）布置成与辐射棒的内部圆柱形壁形成在上部短路的线路部分 结束。 在下部开口的另一个线路段（16）布置在短路线路段的延伸部分中，以形成具有基本上等于四分之一波长的电长度的组合的轻触线路段，其中组合线路段耦合 其天线的输入端子（4,5）的并联点，由组合线路部分表示的电纳能够补偿相当宽的频带内的天线电抗的变化。

    A MAGNETIC INFORMATION RECORDING AND/OR READING HEAD WITH INCREASED WEAR-RESISTANT PROPERTIES AND A METHOD FOR MANUFACTURING THE SAME
    6.
    发明授权
    A MAGNETIC INFORMATION RECORDING AND/OR READING HEAD WITH INCREASED WEAR-RESISTANT PROPERTIES AND A METHOD FOR MANUFACTURING THE SAME 失效
    具有增加的耐磨性能的磁信息记录和/或读取头及其制造方法

    公开(公告)号：EP0162882B1

    公开(公告)日：1989-02-22

    申请号：EP84904158.7

    申请日：1984-11-09

    申请人： BUDAPESTI RADIOTECHNIKAI GYAR

    发明人： GRIMM, István ,  STENCZINGER, Sándor ,  BOLLA, István ,  CSANYI, István

    IPC分类号： G11B5/21

    CPC分类号： G11B5/255 ,  Y10T29/49055

    摘要： A magnetic head for information recording and/or reading which comprises a pair of half poles (10, 11) each consisting of a plurality of soft iron sheets (12) having predetermined profiles. The half poles are attached to each other to define an air gap (13) in front of a magnetic carrier (16). A coil (15) is arranged on the core. Thin hard coatings (18) are deposited on the surfaces of the sheets (12) at least in the region of the air gap and the frontal contact zone (17) with the carrier, whereby a laminated sandwich structure is obtained, in which the hardness is periodically changing along the width of the carrier. Owing to the rigidity of the carrier, the hard coatings resist to wear caused by the sliding movement of the carrier. The presence of the thin coatings does not decrease the resulting permeability of the core. The coating is deposited by means of high rate reactive cathode sputtering technique, which provides for optimum hardness and cohesion to the iron substrate. A preferable coating material is titanium nitride.

    A METHOD FOR RECORDING TRACK MARKING INFORMATION ON FLEXIBLE MAGNETICAL INFORMATION CARRIER DISCS AND APPARATUS FOR FINE ADJUSTMENT OF THE POSITION OF A READING HEAD
    7.
    发明授权
    A METHOD FOR RECORDING TRACK MARKING INFORMATION ON FLEXIBLE MAGNETICAL INFORMATION CARRIER DISCS AND APPARATUS FOR FINE ADJUSTMENT OF THE POSITION OF A READING HEAD 失效
    一种用于记录灵活磁信息载体盘的跟踪标记信息的方法和用于精细调整读取头的位置的装置

    公开(公告)号：EP0057178B1

    公开(公告)日：1986-07-23

    申请号：EP80902165.2

    申请日：1980-08-05

    申请人： BUDAPESTI RADIOTECHNIKAI GYAR

    发明人： JANOSI, Marcell

    IPC分类号： G11B5/48 ,  G11B21/04 ,  G11B25/04

    CPC分类号： G11B5/59633 ,  G11B23/0035

    摘要： A method for recording track marking information on flexible magnetical information carrier discs, in which the circular tracks on one side of the disc are each divided into an information recording segment having an angular width of at least 270 and a remaining track marking segment, and in this latter respective marking frequency signals are recorded so that each of these signals is distinguishable from those recorded on the two neighbouring tracks. The apparatus for fine adjustment of the position of a reading head in case of discs recorded by the above method comprises frequency selective means that selects the marking frequency components when track marking segments are played back. The difference of the sensed components are processed to a control signal which drives a control unit for adjusting the radial position of the head to the center line of a predetermined track.

    A filter arrangement with active elements
    8.
    发明公开
    A filter arrangement with active elements 失效
    Filteranordnung mit aktiven Elementen。

    公开(公告)号：EP0142586A1

    公开(公告)日：1985-05-29

    申请号：EP83307036.0

    申请日：1983-11-17

    申请人： BUDAPESTI RADIOTECHNIKAI GYAR

    发明人： Kovacs, Sandor ,  Fozo, Arpad

    IPC分类号： H03H11/12 ,  H03B5/20

    CPC分类号： H03H11/1252 ,  H03B5/20 ,  H03B2200/0064 ,  H03B2200/0066

    摘要： An active filter arrangement particularly for the reception and transmission of signal sequences, which comprises three feed back operational amplifiers (1,2,3) connected in a closed loop chain. The feedback impedance of one of the amplifiers (1) comprises an ohmical and a capacitive member connected in parallel, while another (2) is fed back by a capacitive impedance. At least one of the capacitive branches includes an RC member. The quality factor can be changed by the adjustment of the ohmical branch while the frequency can be changed by adjusting the coupling between the operational amplifiers within wide ranges. One of the operational amplifiers comprises a feedback circuit (7) controlled by a pulse width modulator (8) by means of which an oscillator mode of operation can be set and the frequency of oscillation will be that of the filter. The oscillator amplitude can be controlled by means of the pulse width modulator (8).
    The adjustment of the frequency and/or the quality factor can be carried out by means of an attenuator comprising a series chain of resistors (Ro to Rn) coupled to an operational amplifier (17) which arrangement is capable of realizing virtual ground potential with discretely changable location in the chain.
    The active filter has a preferable field of application in a circuit arrangement for generating and receiving signal sequences in radio transmitter-receiver systems.

    摘要翻译： 一种有源滤波器装置，特别用于信号序列的接收和发送，其包括连接在闭环链路中的三个反馈运算放大器（1,2,3）。 放大器（1）中的一个的反馈阻抗包括并联连接的欧姆和电容部件，而另一个（2）由电容性阻抗反馈。 电容分支中的至少一个包括RC构件。 可以通过调整欧姆支路来改变质量因子，同时可以通过调节宽范围内的运算放大器之间的耦合来改变频率。 运算放大器之一包括由脉冲宽度调制器（8）控制的反馈电路（7），通过该电路可以设置振荡器操作模式，并且振荡频率将是滤波器的频率。 振荡器振幅可以通过脉冲宽度调制器（8）来控制。 可以通过包括耦合到运算放大器（17）的一系列电阻器（R0至Rn）的衰减器来执行频率和/或品质因子的调整，该布置能够离散地实现虚拟地电势 在链条中可更换的位置。 有源滤波器在用于在无线电发射机 - 接收机系统中生成和接收信号序列的电路装置中具有优选的应用领域。