中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

14 records (took 0.022 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE60306895T2

    公开(公告)日：2007-02-01

    申请号：DE60306895

    申请日：2003-05-07

    Applicant: ST MICROELECTRONICS SRL

    Inventor： PAPPALARDO FRANCESCO ,  VISALLI GIUSEPPE

    IPC: H04B10/524 ,  H04L25/49

    Abstract: A data stream (b(t)) including high ("1") and low ("0") logical states is transmitted over an optical link (16) by means of an optical source (15) adapted to be driven (14) via said the data stream to generate an optical signal for transmission over the optical link (16). The optical signal includes optical pulses generated at the occurrence of high logical ("1") states in said data stream (b(t)). The input data stream (b(t)) is coded (2000) into a coded data stream (B(t)) prior to the transmission over the optical link (16). The coding step minimises the logical high states ("1") in the coded data stream (B(t)), and the optical source (15) is driven by means of the coded data stream (B(t)) wherein the number of logical high states ("1") has been minimised.

    3.
    发明专利
    未知

    公开(公告)号：DE60319832D1

    公开(公告)日：2008-04-30

    申请号：DE60319832

    申请日：2003-10-13

    Applicant: ST MICROELECTRONICS SRL

    Inventor： VISALLI GIUSEPPE ,  PAPPALARDO FRANCESCO ,  AVELLONE GIUSEPPE ,  RIMI FRANCESCO ,  GALLUZZO AGOSTINO

    IPC: H03M13/25 ,  H04L1/00 ,  H04L25/06 ,  H04L27/00 ,  H04L27/227 ,  H04L27/233

    Abstract: A phase recovery and decoding method for decoding signals (S'(t)) comprising encoded symbols (uk) over a respective symbol interval (T) which modulate a carrier, for example in a TCM system. The method envisages performing (20 to 26) a phase locking of the signal to be decoded so as to obtain a phase-locked signal which can present, during each symbol interval (T), variations induced by disturbances (noise, fading, etc.). The value attributed to the decoded symbol (Uk) is a function of the value assumed by the phase-locked signal on at least one subinterval of the symbol interval (T), for example located at the end of the symbol interval (T). Alternatively, the value assumed by the phase-locked signal on a plurality of subintervals comprised in each symbol interval (T) is detected (24,32), and a respective majority value of said phase-locked signal within said plurality of subintervals is identified (34,36). A suitable phase recovery and decoding circuit comprises a phase comparator (20), hard decision means (24), an encoder circuit (26), an oscillator (22) and a selection unit (28). For determining decoded value (Uk) and updating the state of the encoder circuit.

    6.
    发明专利
    未知

    公开(公告)号：ITTO20011038A1

    公开(公告)日：2003-04-30

    申请号：ITTO20011038

    申请日：2001-10-30

    Applicant: ST MICROELECTRONICS SRL

    Inventor： VIGNA BENEDETTO ,  VISALLI GIUSEPPE ,  COMBI CHANTAL ,  FIORITO MATTEO ,  MOTTURA MARTA

    IPC: H01L21/762 ,  H01L21/764 ,  H01L27/08

    Abstract: A process for manufacturing a semiconductor wafer integrating electronic devices and a structure for electromagnetic decoupling are disclosed. The method includes providing a wafer of semiconductor material having a substrate; forming a plurality of first mutually adjacent trenches, open on a first face of the wafer, which have a depth and a width and define walls); by thermal oxidation, completely oxidizing the walls and filling at least partially the first trenches, so as to form an insulating structure of dielectric material; and removing one portion of the substrate comprised between the insulating structure and a second face of the wafer, opposite to the first face of the wafer.

    10.
    发明专利
    未知

    公开(公告)号：DE60322540D1

    公开(公告)日：2008-09-11

    申请号：DE60322540

    申请日：2003-10-13

    Applicant: ST MICROELECTRONICS SRL

    Inventor： PAPPALARDO FRANCESCO ,  NOTARANGELO GIUSEPPE ,  VISALLI GIUSEPPE

    IPC: H04L25/49 ,  H04B10/50 ,  H04B10/516 ,  H04B10/80

    Abstract: In a method for transmitting on an optical connection (16) a sequence of input data (b(t)) comprising first ("1") and second ("0") logic states, there is envisaged the operation of providing an optical source (15) for generating an optical signal to be transmitted on said optical connection (16), said optical source (15) being able to generate optical pulses at the occurrence of said first ("1") logic states. The method comprises the operation of: - encoding (470,570) said sequence of input data (b(t)) in an encoded sequence of data (B(t)) prior to transmission on said optical connection (16), where said encoding operation minimizes the first logic states ("1") in said encoded sequence of data (B(t)). A preferential application is to optical-fibre communication systems with on-chip integrated buses.

Patent Agency Ranking