Patents by Inventor Franciscus A. Kneepkens

Franciscus A. Kneepkens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Transmission system having receiver for recovering words from sequence of symbols
    Patent number: 6014415
    Abstract: In a transmission system a sequence of digital symbols including concatenated words, is transmitted by a transmitter (2) via a transmission medium (14) to a receiver (16). In order to reduce the transmission capacity no word synchronizing symbols are introduced in the sequence of digital symbols. In order to achieve word synchronization, a synchronization processor estimates the probability function of one single predetermined string as function of the position of the string in the sequence. The correct position of the words is derived from this probability function.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: January 11, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Franciscus A. Kneepkens, Pieter G. Van Leeuwen
  • Apparatus for reproducing n digital signals from n adjacent tracks on a record carrier
    Patent number: 5488516
    Abstract: For the clock extraction from n digital signals read from each of n tracks there are provided n phase-locked loops. In order to compensate for speed variations in the speed of transport of the record carrier there is provided an additional frequency control system. This system derives a control signal which is a measure of the speed variations, which control signal is applied to the voltage-controlled oscillators of all the phase-locked loops as a common control signal.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: January 30, 1996
    Assignee: U.S. Philips Corporation
    Inventors: Johannes J. W. Kalfs, Franciscus A. Kneepkens
  • System, apparatus and methods for recording and/or reproducing on and/or from a re-recordable record carrier digital signals containing information which results in concealment during reproduction
    Patent number: 5450248
    Abstract: Systems, apparatus and methods for recording or reproducing from a re-recordable record carrier digital signals, representing a digital audio signal, containing information which results in concealment of a portion of a replica of the digital audio signal during its reproduction to prohibit audio distortions resulting from a boundary between two digital signals, wherein one of those digital signal is newly-recorded over a previously-recorded other digital signal. The concealment information can also be included in auxiliary signals recorded on reproduced from the record carrier along with the digital signals. In a recording apparatus, a digital signal including audio information (i.e.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: September 12, 1995
    Assignee: U.S. Philips Corporation
    Inventors: Gustavus L. P. Van Eijck, Gerardus C. P. Lokhoff, Franciscus A. Kneepkens, John F. Sherry
  • Transmitter, receiver and record carrier in a digital transmission system
    Patent number: 5440596
    Abstract: The transmission system includes a transmitter for transmitting a sub-band-coded signal which is accommodated in a second digital signal (FIG. 2) having frames which incorporate allocation information, scale factor information and samples. In order to perform an additional signal processing operation on the received signal at the receiver end, the bit allocation information is already adapted for this purpose at the transmitter end. A signal processing control signal indicating which type of additional signal processing operation will have to be performed may be transmitted along with the information.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: August 8, 1995
    Assignee: U.S. Philips Corporation
    Inventors: Franciscus A. Kneepkens, Gerardus C. P. Lokhoff