Patents Assigned to O.C.E.M. S.p.A.
  • Patent number: 8072154
    Abstract: A device for supplying diodes LED includes an electric bridge (ABHG) with input terminals (A, B) and output terminals (H, G), including diodes (DS1, DS2) interposed between branches (AH, BH), with cathodes turned toward the terminal (H); Two MOSFET elements (M1, M2) are interposed between the branches (AG, BG). A capacitor (C) is derived between the terminals (H) and (G). A switch (KR) and LED diodes arranged in series, with their anodes oriented toward the terminal (H), and a first current sensor (S1) are arranged along a derived branch (R), between the terminals (H) and (G). An electric control unit (CE) receives in input feedback control signals coming from the first sensor (S1) and operates opening/closing of the switches (M1) and (M2), as well as of the branch switch (KR) in suitable relation with the trend of the alternating current (iz), to obtain a predetermined trend of the branch current (ir.) for power supplying the LED diodes.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: December 6, 2011
    Assignee: O.C.E.M. S.p.A.
    Inventor: Gianni Facchini
  • Publication number: 20100265687
    Abstract: Assembling unit for use inside housings of luminous signallers arranged in airport areas, comprising an electronic board (1) and at least an electronic or electro-mechanical switching component (4), which is connected to the electronic board (1) by means of electric connecting cables (10), which are flexible for damping mechanical vibrations directed towards the electronic switching component (4) in order to avoid the occurring of undesired switching. According to an aspect of the invention, the switching component (4) can comprise outside a protective material absorbing the impacts or a protective cap (5) or it can be immersed in a liquid which damps its oscillations originating as a consequence of the mechanical vibrations which reach the switching component (4) itself.
    Type: Application
    Filed: December 11, 2008
    Publication date: October 21, 2010
    Applicant: O.C.E.M. S.P.A.
    Inventors: Gianni Facchini, Michele Romagnoli, Giovanni Cannistra'
  • Publication number: 20100102737
    Abstract: A device for supplying diodes LED includes an electric bridge (ABHG) with input terminals (A, B) and output terminals (H, G), including diodes (DS1, DS2) interposed between branches (AH, BH), with cathodes turned toward the terminal (H); Two MOSFET elements (M1, M2) are interposed between the branches (AG, BG). A capacitor (C) is derived between the terminals (H) and (G). A switch (KR) and LED diodes arranged in series, with their anodes oriented toward the terminal (H), and a first current sensor (S1) are arranged along a derived branch (R), between the terminals (H) and (G). An electric control unit (CE) receives in input feedback control signals coming from the first sensor (S1) and operates opening/closing of the switches (M1) and (M2), as well as of the branch switch (KR) in suitable relation with the trend of the alternating current (iz), to obtain a predetermined trend of the branch current (ir.) for power supplying the LED diodes.
    Type: Application
    Filed: October 10, 2007
    Publication date: April 29, 2010
    Applicant: O.C.E.M. S.P.A.
    Inventor: Gianni FACCHINI
  • Publication number: 20100026207
    Abstract: A current regulation unit in a circuit composed of light sources, connected in series, interposed between an electric source (SE) and the series connection electric circuit (E) of the light sources (SI1, SI2, SIJ, SIN), includes: at least one conversion apparatus (AC1 AC2) for generating an alternating voltage, having pre-settable characteristics; a transformer (T), connected in cascade to the conversion apparatus (AC1, AC2) and connected to the electric circuit (E); and an electric control unit (CE), connected to the conversion apparatus (AC1, AC2) for controlling the modulation of the alternating voltage supplied by the conversion apparatus, in order to obtain a current (z) circulating in the electric circuit (E) having pre-settable electric characteristics. The conversion apparatus (AC1, AC2) is mounted on a printed board (SC1, SC2), removable from a corresponding slot (SL1, SL2), made in the regulation unit (UR).
    Type: Application
    Filed: October 9, 2007
    Publication date: February 4, 2010
    Applicant: O.C.E.M. S.P.A.
    Inventors: Gianni Facchini, Giovanni Cannistra'
  • Publication number: 20090267527
    Abstract: A supply system for light sources connected in series is powered by one power line (SE), and a plurality of adjustment units (UR1, UR2, . . . , URJ, . . . URN) are interposed between the power line (SE) and an electric circuit (E) for in-series connection of light sources (SI1, SI2, . . . , SIJ, . . . SIN). Each of the adjustment units (URJ) has a (DC/ACJ) generator device for the generation of an alternating voltage. An electric transformer (TJ) is connected in cascade and functionally with the electric circuit (E). An electric central unit (C), connected to the generator devices, controls modulation of the alternating voltage supplied by the generator device, so as to obtain a current (z) circulating in the electric circuit (E), having pre-defined electric characteristics.
    Type: Application
    Filed: August 28, 2007
    Publication date: October 29, 2009
    Applicant: O.C.E.M. S.p.A.
    Inventor: Gianni Facchini
  • Publication number: 20090200946
    Abstract: According to a method for supplying a plurality of cascade connected light sources including, a control signal (k) is sent to a supply apparatus (AA). The control signal corresponds to a desired value of light radiation intensity to be emitted by at least a part of said the light sources, An electric current (z) with variable frequency is supplied to the plurality of light sources (SL1, SL2 , . . . , SLn) so that the lamps (L) of each light source are crossed by the values of current (h) depending on the frequency values of the current (z) supplied to the plurality of light sources. A connection exists between the values assumed by the control signal (k) and the values of the current (h) circulating in the lamps (L) of the light sources (SL1, SL2, . . . , SLn).
    Type: Application
    Filed: June 12, 2007
    Publication date: August 13, 2009
    Applicant: O.C.E.M. S.P.A.
    Inventor: Gianni Facchini
  • Publication number: 20090195395
    Abstract: A device for supplying and controlling a light source in a half-dipped signaling lamp includes at least one light source (3), housed in a base support, and a cap (4), removably fastened to the support base. At least one window seat (5a, 5b) is made in the cap and an optical prism (6a, 6b) is associated to the window seat. Reflecting means (7) direct a light beam emitted by the light source (3) toward the optical prism (6a, 6b) while sensor means (21) detect the intensity of the light radiation emitted by the light source (3) or of a representative quantity of the light radiation. A supply and control central unit (CC) receives the signals (S1, S2), coming from the sensor means (21) and supplies the light source (3).
    Type: Application
    Filed: June 12, 2007
    Publication date: August 6, 2009
    Applicant: O.C.E.M. S.P.A.
    Inventors: Giovanni Cannistra, Gianni Facchini, Gianluigi Basile
  • Publication number: 20080129309
    Abstract: A method for detecting and locating a ground failure in an electrical line, of the type comprising a plurality of electrical loads connected to an electrical line (L) and supplied by a supply and control apparatus (1), each electrical load consisting of a load element and an auxiliary device, electrically connected to each other, with said method providing for: the transmission, over the electrical line (L), of at least a first control signal ((S(i,i+1))) from a first auxiliary device (Di), associated to a corresponding first load (Ci) belonging to the plurality of electrical loads, to a second auxiliary device ((Di+1)), associated to a corresponding second load ((Ci+1)), adjacent the first load (Ci), belonging to the plurality of electrical loads; the reception of the first control signal ((S(i,i+1))), transmitted by the first auxiliary device (Di), by the second auxiliary device ((Di+1)); the transmission of a first information signal (Inf(i+1,i)) to the supply and control apparatus (1) by the second auxili
    Type: Application
    Filed: January 18, 2006
    Publication date: June 5, 2008
    Applicant: O.C.E.M. S.P.A.
    Inventor: Giovanni Cannistra
  • Publication number: 20070171632
    Abstract: Half-level light signaling device is formed by a casing, including a lower part, which houses electrical and/or electronic circuits and at least one light source, and a cap protruding from the ground and removably fastened to the lower part. The cap has at least one aperture, to which a prism is connected, as to send outwards a light beam produced by the light source. The signaling device includes at least one antenna, embedded in the isolating material making up the cap, and having the terminals accessible from the lower part of the casing.
    Type: Application
    Filed: March 18, 2005
    Publication date: July 26, 2007
    Applicant: O.C.E.M. S.p.A.
    Inventor: Gianluigi Basile